* [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs
@ 2010-07-30 0:29 Colin Cross
2010-07-30 0:29 ` [PATCH 1/9] [ARM] tegra: update iomap Colin Cross
` (9 more replies)
0 siblings, 10 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
This patch set adds support for more of the Tegra 2 core systems. After
review, some of these changes will be merged down with the core support
that is already in the tegra for-next branch.
Colin Cross (8):
[ARM] tegra: update iomap
[ARM] tegra: Add legacy irq support
[ARM] tegra: pinmux: add safe values, move tegra2, add suspend
[ARM] tegra: gpio: Add suspend and wake support
[ARM] tegra: Add support for reading fuses
[ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups
[ARM] tegra: common: Update common clock init table
[ARM] tegra: Add cpufreq support
Gary King (1):
[ARM] tegra: add suspend and mirror irqs to legacy controller
arch/arm/Kconfig | 1 +
arch/arm/mach-tegra/Makefile | 6 +-
arch/arm/mach-tegra/clock.c | 267 ++++++++-
arch/arm/mach-tegra/clock.h | 58 ++-
arch/arm/mach-tegra/common.c | 6 +-
arch/arm/mach-tegra/cpu-tegra.c | 185 ++++++
arch/arm/mach-tegra/fuse.c | 84 +++
arch/arm/mach-tegra/fuse.h | 24 +
arch/arm/mach-tegra/gpio.c | 104 +++-
arch/arm/mach-tegra/include/mach/clk.h | 5 +
arch/arm/mach-tegra/include/mach/gpio.h | 4 +-
arch/arm/mach-tegra/include/mach/io.h | 6 +
arch/arm/mach-tegra/include/mach/iomap.h | 33 +-
arch/arm/mach-tegra/include/mach/irqs.h | 2 +
arch/arm/mach-tegra/include/mach/legacy_irq.h | 31 +
arch/arm/mach-tegra/include/mach/pinmux-t2.h | 174 ++++++
arch/arm/mach-tegra/include/mach/pinmux.h | 210 ++-----
arch/arm/mach-tegra/io.c | 6 +
arch/arm/mach-tegra/irq.c | 137 +++++
arch/arm/mach-tegra/legacy_irq.c | 114 ++++
arch/arm/mach-tegra/pinmux-t2-tables.c | 260 +++++++++
arch/arm/mach-tegra/pinmux.c | 354 ++++--------
arch/arm/mach-tegra/tegra2_clocks.c | 778 +++++++++++++++++++------
arch/arm/mach-tegra/tegra2_dvfs.c | 86 +++
arch/arm/mach-tegra/tegra2_dvfs.h | 20 +
25 files changed, 2327 insertions(+), 628 deletions(-)
create mode 100644 arch/arm/mach-tegra/cpu-tegra.c
create mode 100644 arch/arm/mach-tegra/fuse.c
create mode 100644 arch/arm/mach-tegra/fuse.h
create mode 100644 arch/arm/mach-tegra/include/mach/legacy_irq.h
create mode 100644 arch/arm/mach-tegra/include/mach/pinmux-t2.h
create mode 100644 arch/arm/mach-tegra/legacy_irq.c
create mode 100644 arch/arm/mach-tegra/pinmux-t2-tables.c
create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.c
create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.h
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 1/9] [ARM] tegra: update iomap
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 2/9] [ARM] tegra: Add legacy irq support Colin Cross
` (8 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
Add missing io address map entries from datasheet.
Add the IRAM area to the statically mapped io regions.
Correct the onewire, USB, and statmon addresses
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/include/mach/io.h | 6 +++++
arch/arm/mach-tegra/include/mach/iomap.h | 33 ++++++++++++++++++++++++-----
arch/arm/mach-tegra/io.c | 6 +++++
3 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-tegra/include/mach/io.h b/arch/arm/mach-tegra/include/mach/io.h
index 35edfc3..16f1618 100644
--- a/arch/arm/mach-tegra/include/mach/io.h
+++ b/arch/arm/mach-tegra/include/mach/io.h
@@ -33,6 +33,10 @@
*
*/
+#define IO_IRAM_PHYS 0x40000000
+#define IO_IRAM_VIRT 0xFE400000
+#define IO_IRAM_SIZE SZ_256K
+
#define IO_CPU_PHYS 0x50040000
#define IO_CPU_VIRT 0xFE000000
#define IO_CPU_SIZE SZ_16K
@@ -55,6 +59,8 @@
IO_TO_VIRT_XLATE((n), IO_APB_PHYS, IO_APB_VIRT) : \
IO_TO_VIRT_BETWEEN((n), IO_CPU_PHYS, IO_CPU_SIZE) ? \
IO_TO_VIRT_XLATE((n), IO_CPU_PHYS, IO_CPU_VIRT) : \
+ IO_TO_VIRT_BETWEEN((n), IO_IRAM_PHYS, IO_IRAM_SIZE) ? \
+ IO_TO_VIRT_XLATE((n), IO_IRAM_PHYS, IO_IRAM_VIRT) : \
0)
#ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-tegra/include/mach/iomap.h b/arch/arm/mach-tegra/include/mach/iomap.h
index 1741f7d..44a4f4b 100644
--- a/arch/arm/mach-tegra/include/mach/iomap.h
+++ b/arch/arm/mach-tegra/include/mach/iomap.h
@@ -23,9 +23,15 @@
#include <asm/sizes.h>
+#define TEGRA_IRAM_BASE 0x40000000
+#define TEGRA_IRAM_SIZE SZ_256K
+
#define TEGRA_ARM_PERIF_BASE 0x50040000
#define TEGRA_ARM_PERIF_SIZE SZ_8K
+#define TEGRA_ARM_PL310_BASE 0x50043000
+#define TEGRA_ARM_PL310_SIZE SZ_4K
+
#define TEGRA_ARM_INT_DIST_BASE 0x50041000
#define TEGRA_ARM_INT_DIST_SIZE SZ_4K
@@ -68,7 +74,22 @@
#define TEGRA_FLOW_CTRL_BASE 0x60007000
#define TEGRA_FLOW_CTRL_SIZE 20
-#define TEGRA_STATMON_BASE 0x6000C4000
+#define TEGRA_AHB_DMA_BASE 0x60008000
+#define TEGRA_AHB_DMA_SIZE SZ_4K
+
+#define TEGRA_AHB_DMA_CH0_BASE 0x60009000
+#define TEGRA_AHB_DMA_CH0_SIZE 32
+
+#define TEGRA_APB_DMA_BASE 0x6000A000
+#define TEGRA_APB_DMA_SIZE SZ_4K
+
+#define TEGRA_APB_DMA_CH0_BASE 0x6000B000
+#define TEGRA_APB_DMA_CH0_SIZE 32
+
+#define TEGRA_AHB_GIZMO_BASE 0x6000C004
+#define TEGRA_AHB_GIZMO_SIZE 0x10C
+
+#define TEGRA_STATMON_BASE 0x6000C400
#define TEGRA_STATMON_SIZE SZ_1K
#define TEGRA_GPIO_BASE 0x6000D000
@@ -137,7 +158,7 @@
#define TEGRA_I2C3_BASE 0x7000C500
#define TEGRA_I2C3_SIZE SZ_256
-#define TEGRA_OWR_BASE 0x7000D000
+#define TEGRA_OWR_BASE 0x7000C600
#define TEGRA_OWR_SIZE 80
#define TEGRA_DVC_BASE 0x7000D000
@@ -182,12 +203,12 @@
#define TEGRA_USB_BASE 0xC5000000
#define TEGRA_USB_SIZE SZ_16K
-#define TEGRA_USB1_BASE 0xC5004000
-#define TEGRA_USB1_SIZE SZ_16K
-
-#define TEGRA_USB2_BASE 0xC5008000
+#define TEGRA_USB2_BASE 0xC5004000
#define TEGRA_USB2_SIZE SZ_16K
+#define TEGRA_USB3_BASE 0xC5008000
+#define TEGRA_USB3_SIZE SZ_16K
+
#define TEGRA_SDMMC1_BASE 0xC8000000
#define TEGRA_SDMMC1_SIZE SZ_512
diff --git a/arch/arm/mach-tegra/io.c b/arch/arm/mach-tegra/io.c
index 9fe2c5c..31848a9 100644
--- a/arch/arm/mach-tegra/io.c
+++ b/arch/arm/mach-tegra/io.c
@@ -49,6 +49,12 @@ static struct map_desc tegra_io_desc[] __initdata = {
.length = IO_CPU_SIZE,
.type = MT_DEVICE,
},
+ {
+ .virtual = IO_IRAM_VIRT,
+ .pfn = __phys_to_pfn(IO_IRAM_PHYS),
+ .length = IO_IRAM_SIZE,
+ .type = MT_DEVICE,
+ },
};
void __init tegra_map_common_io(void)
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 2/9] [ARM] tegra: Add legacy irq support
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
2010-07-30 0:29 ` [PATCH 1/9] [ARM] tegra: update iomap Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 3/9] [ARM] tegra: add suspend and mirror irqs to legacy controller Colin Cross
` (7 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
The "legacy irq controller" duplicates the functionality of the GIC,
but remains powered during the cpu suspend and idle modes that power
down the CPU and the GIC.
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/Makefile | 2 +-
arch/arm/mach-tegra/include/mach/legacy_irq.h | 31 +++++++
arch/arm/mach-tegra/legacy_irq.c | 114 +++++++++++++++++++++++++
3 files changed, 146 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-tegra/include/mach/legacy_irq.h
create mode 100644 arch/arm/mach-tegra/legacy_irq.c
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 51e9370..0a975b5 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -1,6 +1,6 @@
obj-y += common.o
obj-y += io.o
-obj-y += irq.o
+obj-y += irq.o legacy_irq.o
obj-y += clock.o
obj-y += timer.o
obj-y += gpio.o
diff --git a/arch/arm/mach-tegra/include/mach/legacy_irq.h b/arch/arm/mach-tegra/include/mach/legacy_irq.h
new file mode 100644
index 0000000..db1eb3d
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/legacy_irq.h
@@ -0,0 +1,31 @@
+/*
+ * arch/arm/mach-tegra/include/mach/legacy_irq.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ * Author: Colin Cross <ccross@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _ARCH_ARM_MACH_TEGRA_LEGARY_IRQ_H
+#define _ARCH_ARM_MACH_TEGRA_LEGARY_IRQ_H
+
+void tegra_legacy_mask_irq(unsigned int irq);
+void tegra_legacy_unmask_irq(unsigned int irq);
+void tegra_legacy_select_fiq(unsigned int irq, bool fiq);
+void tegra_legacy_force_irq_set(unsigned int irq);
+void tegra_legacy_force_irq_clr(unsigned int irq);
+int tegra_legacy_force_irq_status(unsigned int irq);
+void tegra_legacy_select_fiq(unsigned int irq, bool fiq);
+unsigned long tegra_legacy_vfiq(int nr);
+unsigned long tegra_legacy_class(int nr);
+
+#endif
diff --git a/arch/arm/mach-tegra/legacy_irq.c b/arch/arm/mach-tegra/legacy_irq.c
new file mode 100644
index 0000000..7cc8601
--- /dev/null
+++ b/arch/arm/mach-tegra/legacy_irq.c
@@ -0,0 +1,114 @@
+/*
+ * arch/arm/mach-tegra/legacy_irq.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ * Author: Colin Cross <ccross@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <mach/iomap.h>
+#include <mach/legacy_irq.h>
+
+#define ICTLR_CPU_IER 0x20
+#define ICTLR_CPU_IER_SET 0x24
+#define ICTLR_CPU_IER_CLR 0x28
+#define ICTLR_CPU_IEP_CLASS 0x2C
+#define ICTLR_CPU_IEP_VFIQ 0x08
+#define ICTLR_CPU_IEP_FIR 0x14
+#define ICTLR_CPU_IEP_FIR_SET 0x18
+#define ICTLR_CPU_IEP_FIR_CLR 0x1c
+
+static void __iomem *ictlr_reg_base[] = {
+ IO_ADDRESS(TEGRA_PRIMARY_ICTLR_BASE),
+ IO_ADDRESS(TEGRA_SECONDARY_ICTLR_BASE),
+ IO_ADDRESS(TEGRA_TERTIARY_ICTLR_BASE),
+ IO_ADDRESS(TEGRA_QUATERNARY_ICTLR_BASE),
+};
+
+/* When going into deep sleep, the CPU is powered down, taking the GIC with it
+ In order to wake, the wake interrupts need to be enabled in the legacy
+ interrupt controller. */
+void tegra_legacy_unmask_irq(unsigned int irq)
+{
+ void __iomem *base;
+ pr_debug("%s: %d\n", __func__, irq);
+
+ irq -= 32;
+ base = ictlr_reg_base[irq>>5];
+ writel(1 << (irq & 31), base + ICTLR_CPU_IER_SET);
+}
+
+void tegra_legacy_mask_irq(unsigned int irq)
+{
+ void __iomem *base;
+ pr_debug("%s: %d\n", __func__, irq);
+
+ irq -= 32;
+ base = ictlr_reg_base[irq>>5];
+ writel(1 << (irq & 31), base + ICTLR_CPU_IER_CLR);
+}
+
+void tegra_legacy_force_irq_set(unsigned int irq)
+{
+ void __iomem *base;
+ pr_debug("%s: %d\n", __func__, irq);
+
+ irq -= 32;
+ base = ictlr_reg_base[irq>>5];
+ writel(1 << (irq & 31), base + ICTLR_CPU_IEP_FIR_SET);
+}
+
+void tegra_legacy_force_irq_clr(unsigned int irq)
+{
+ void __iomem *base;
+ pr_debug("%s: %d\n", __func__, irq);
+
+ irq -= 32;
+ base = ictlr_reg_base[irq>>5];
+ writel(1 << (irq & 31), base + ICTLR_CPU_IEP_FIR_CLR);
+}
+
+int tegra_legacy_force_irq_status(unsigned int irq)
+{
+ void __iomem *base;
+ pr_debug("%s: %d\n", __func__, irq);
+
+ irq -= 32;
+ base = ictlr_reg_base[irq>>5];
+ return !!(readl(base + ICTLR_CPU_IEP_FIR) & (1 << (irq & 31)));
+}
+
+void tegra_legacy_select_fiq(unsigned int irq, bool fiq)
+{
+ void __iomem *base;
+ pr_debug("%s: %d\n", __func__, irq);
+
+ irq -= 32;
+ base = ictlr_reg_base[irq>>5];
+ writel(fiq << (irq & 31), base + ICTLR_CPU_IEP_CLASS);
+}
+
+unsigned long tegra_legacy_vfiq(int nr)
+{
+ void __iomem *base;
+ base = ictlr_reg_base[nr];
+ return readl(base + ICTLR_CPU_IEP_VFIQ);
+}
+
+unsigned long tegra_legacy_class(int nr)
+{
+ void __iomem *base;
+ base = ictlr_reg_base[nr];
+ return readl(base + ICTLR_CPU_IEP_CLASS);
+}
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 3/9] [ARM] tegra: add suspend and mirror irqs to legacy controller
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
2010-07-30 0:29 ` [PATCH 1/9] [ARM] tegra: update iomap Colin Cross
2010-07-30 0:29 ` [PATCH 2/9] [ARM] tegra: Add legacy irq support Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 4/9] [ARM] tegra: pinmux: add safe values, move tegra2, add suspend Colin Cross
` (6 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Gary King <gking@nvidia.com>
mirror IRQ enable and disable operations on the legacy PPI system
interrupt controller, since the legacy controller is responsible
for responding to wakeup interrupts when the CPU is in LP2 idle mode
save the irq controller state on suspend and restore on resume
Signed-off-by: Gary King <gking@nvidia.com>
---
arch/arm/mach-tegra/include/mach/irqs.h | 2 +
arch/arm/mach-tegra/irq.c | 137 +++++++++++++++++++++++++++++++
2 files changed, 139 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-tegra/include/mach/irqs.h b/arch/arm/mach-tegra/include/mach/irqs.h
index 20f640e..71bbf34 100644
--- a/arch/arm/mach-tegra/include/mach/irqs.h
+++ b/arch/arm/mach-tegra/include/mach/irqs.h
@@ -25,6 +25,7 @@
#define IRQ_LOCALTIMER 29
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
/* Primary Interrupt Controller */
#define INT_PRI_BASE (INT_GIC_BASE + 32)
#define INT_TMR1 (INT_PRI_BASE + 0)
@@ -169,5 +170,6 @@
#define INT_GPIO_NR (28 * 8)
#define NR_IRQS (INT_GPIO_BASE + INT_GPIO_NR)
+#endif
#endif
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 1fdbe70..50a8dfb 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -4,6 +4,8 @@
* Author:
* Colin Cross <ccross@google.com>
*
+ * Copyright (C) 2010, NVIDIA Corporation
+ *
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
@@ -27,8 +29,143 @@
#include "board.h"
+#define INT_SYS_NR (INT_GPIO_BASE - INT_PRI_BASE)
+#define INT_SYS_SZ (INT_SEC_BASE - INT_PRI_BASE)
+#define PPI_NR ((INT_SYS_NR+INT_SYS_SZ-1)/INT_SYS_SZ)
+
+#define APBDMA_IRQ_STA_CPU 0x14
+#define APBDMA_IRQ_MASK_SET 0x20
+#define APBDMA_IRQ_MASK_CLR 0x24
+
+#define ICTLR_CPU_IER 0x20
+#define ICTLR_CPU_IER_SET 0x24
+#define ICTLR_CPU_IER_CLR 0x28
+#define ICTLR_CPU_IEP_CLASS 0x2c
+#define ICTLR_COP_IER 0x30
+#define ICTLR_COP_IER_SET 0x34
+#define ICTLR_COP_IER_CLR 0x38
+#define ICTLR_COP_IEP_CLASS 0x3c
+
+static void (*gic_mask_irq)(unsigned int irq);
+static void (*gic_unmask_irq)(unsigned int irq);
+
+#define irq_to_ictlr(irq) (((irq)-32) >> 5)
+static void __iomem *tegra_ictlr_base = IO_ADDRESS(TEGRA_PRIMARY_ICTLR_BASE);
+#define ictlr_to_virt(ictlr) (tegra_ictlr_base + (ictlr)*0x100)
+
+static void tegra_mask(unsigned int irq)
+{
+ void __iomem *addr = ictlr_to_virt(irq_to_ictlr(irq));
+ gic_mask_irq(irq);
+ writel(1<<(irq&31), addr+ICTLR_CPU_IER_CLR);
+}
+
+static void tegra_unmask(unsigned int irq)
+{
+ void __iomem *addr = ictlr_to_virt(irq_to_ictlr(irq));
+ gic_unmask_irq(irq);
+ writel(1<<(irq&31), addr+ICTLR_CPU_IER_SET);
+}
+
+#ifdef CONFIG_PM
+
+static int tegra_set_wake(unsigned int irq, unsigned int on)
+{
+ return 0;
+}
+#endif
+
+static struct irq_chip tegra_irq = {
+ .name = "PPI",
+ .mask = tegra_mask,
+ .unmask = tegra_unmask,
+#ifdef CONFIG_PM
+ .set_wake = tegra_set_wake,
+#endif
+};
+
void __init tegra_init_irq(void)
{
+ struct irq_chip *gic;
+ unsigned int i;
+
+ for (i = 0; i < PPI_NR; i++) {
+ writel(~0, ictlr_to_virt(i) + ICTLR_CPU_IER_CLR);
+ writel(0, ictlr_to_virt(i) + ICTLR_CPU_IEP_CLASS);
+ }
+
gic_dist_init(0, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE), 29);
gic_cpu_init(0, IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
+
+ gic = get_irq_chip(29);
+ gic_unmask_irq = gic->unmask;
+ gic_mask_irq = gic->mask;
+ tegra_irq.ack = gic->ack;
+#ifdef CONFIG_SMP
+ tegra_irq.set_affinity = gic->set_affinity;
+#endif
+
+ for (i = INT_PRI_BASE; i < INT_GPIO_BASE; i++) {
+ set_irq_chip(i, &tegra_irq);
+ set_irq_handler(i, handle_level_irq);
+ set_irq_flags(i, IRQF_VALID);
+ }
+}
+
+#ifdef CONFIG_PM
+static u32 cop_ier[PPI_NR];
+static u32 cpu_ier[PPI_NR];
+static u32 cpu_iep[PPI_NR];
+
+void tegra_irq_suspend(void)
+{
+ unsigned long flags;
+ int i;
+
+ for (i = INT_PRI_BASE; i < INT_GPIO_BASE; i++) {
+ struct irq_desc *desc = irq_to_desc(i);
+ if (!desc)
+ continue;
+ if (desc->status & IRQ_WAKEUP) {
+ pr_debug("irq %d is wakeup\n", i);
+ continue;
+ }
+ disable_irq(i);
+ }
+
+ local_irq_save(flags);
+ for (i = 0; i < PPI_NR; i++) {
+ void __iomem *ictlr = ictlr_to_virt(i);
+ cpu_ier[i] = readl(ictlr + ICTLR_CPU_IER);
+ cpu_iep[i] = readl(ictlr + ICTLR_CPU_IEP_CLASS);
+ cop_ier[i] = readl(ictlr + ICTLR_COP_IER);
+ writel(~0, ictlr + ICTLR_COP_IER_CLR);
+ }
+ local_irq_restore(flags);
+}
+
+void tegra_irq_resume(void)
+{
+ unsigned long flags;
+ int i;
+
+ local_irq_save(flags);
+ for (i = 0; i < PPI_NR; i++) {
+ void __iomem *ictlr = ictlr_to_virt(i);
+ writel(cpu_iep[i], ictlr + ICTLR_CPU_IEP_CLASS);
+ writel(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+ writel(cpu_ier[i], ictlr + ICTLR_CPU_IER_SET);
+ writel(0, ictlr + ICTLR_COP_IEP_CLASS);
+ writel(~0ul, ictlr + ICTLR_COP_IER_CLR);
+ writel(cop_ier[i], ictlr + ICTLR_COP_IER_SET);
+ }
+ local_irq_restore(flags);
+
+ for (i = INT_PRI_BASE; i < INT_GPIO_BASE; i++) {
+ struct irq_desc *desc = irq_to_desc(i);
+ if (!desc || (desc->status & IRQ_WAKEUP))
+ continue;
+ enable_irq(i);
+ }
}
+#endif
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 4/9] [ARM] tegra: pinmux: add safe values, move tegra2, add suspend
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (2 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 3/9] [ARM] tegra: add suspend and mirror irqs to legacy controller Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 5/9] [ARM] tegra: gpio: Add suspend and wake support Colin Cross
` (5 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
- the reset values for some pin groups in the tegra pin mux can result in
functional errors due to conflicting with actively-configured pin groups
muxing from the same controller. this change adds a known safe, non-
conflicting mux for every pin group, which can be used on platforms
where the pin group is not routed to any peripheral
- also add each pin group's I/O voltage rail, to enable platform code to
map from the pin groups used by each interface to the regulators used
for dynamic voltage control
- add routines to individually configure the tristate, pin mux and pull-
ups for a pingroup_config array, so that it is possible to program
individual values at run-time without modifying other values.
this allows driver power-management code to reprogram individual
interfaces into lower power states during idle / suspend, or to
reprogram the pin mux to support multiple physical busses per
internal controller (e.g., sharing a single I2C or SPI controller
across multiple pin groups)
- move chip-specific data like pingroups and drive-pingroups
out of the common code and into chip-specific code
- fix debug output for group with no pullups
- add a TEGRA_MUX_SAFE function. Setting a pingroup to TEGRA_MUX_SAFE
will automatically select a mux setting that is guaranteed not to
conflict with any of the hardware blocks.
Signed-off-by: Gary King <gking@nvidia.com>
---
arch/arm/mach-tegra/Makefile | 1 +
arch/arm/mach-tegra/include/mach/pinmux-t2.h | 174 +++++++++++++
arch/arm/mach-tegra/include/mach/pinmux.h | 210 ++++------------
arch/arm/mach-tegra/pinmux-t2-tables.c | 260 +++++++++++++++++++
arch/arm/mach-tegra/pinmux.c | 354 +++++++++-----------------
5 files changed, 603 insertions(+), 396 deletions(-)
create mode 100644 arch/arm/mach-tegra/include/mach/pinmux-t2.h
create mode 100644 arch/arm/mach-tegra/pinmux-t2-tables.c
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 0a975b5..87d065e 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -7,6 +7,7 @@ obj-y += gpio.o
obj-y += pinmux.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clock.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += pinmux-t2-tables.o
obj-$(CONFIG_SMP) += platsmp.o localtimer.o headsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
diff --git a/arch/arm/mach-tegra/include/mach/pinmux-t2.h b/arch/arm/mach-tegra/include/mach/pinmux-t2.h
new file mode 100644
index 0000000..e5b9d74
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/pinmux-t2.h
@@ -0,0 +1,174 @@
+/*
+ * linux/arch/arm/mach-tegra/include/mach/pinmux-t2.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __MACH_TEGRA_PINMUX_T2_H
+#define __MACH_TEGRA_PINMUX_T2_H
+
+enum tegra_pingroup {
+ TEGRA_PINGROUP_ATA = 0,
+ TEGRA_PINGROUP_ATB,
+ TEGRA_PINGROUP_ATC,
+ TEGRA_PINGROUP_ATD,
+ TEGRA_PINGROUP_ATE,
+ TEGRA_PINGROUP_CDEV1,
+ TEGRA_PINGROUP_CDEV2,
+ TEGRA_PINGROUP_CRTP,
+ TEGRA_PINGROUP_CSUS,
+ TEGRA_PINGROUP_DAP1,
+ TEGRA_PINGROUP_DAP2,
+ TEGRA_PINGROUP_DAP3,
+ TEGRA_PINGROUP_DAP4,
+ TEGRA_PINGROUP_DDC,
+ TEGRA_PINGROUP_DTA,
+ TEGRA_PINGROUP_DTB,
+ TEGRA_PINGROUP_DTC,
+ TEGRA_PINGROUP_DTD,
+ TEGRA_PINGROUP_DTE,
+ TEGRA_PINGROUP_DTF,
+ TEGRA_PINGROUP_GMA,
+ TEGRA_PINGROUP_GMB,
+ TEGRA_PINGROUP_GMC,
+ TEGRA_PINGROUP_GMD,
+ TEGRA_PINGROUP_GME,
+ TEGRA_PINGROUP_GPU,
+ TEGRA_PINGROUP_GPU7,
+ TEGRA_PINGROUP_GPV,
+ TEGRA_PINGROUP_HDINT,
+ TEGRA_PINGROUP_I2CP,
+ TEGRA_PINGROUP_IRRX,
+ TEGRA_PINGROUP_IRTX,
+ TEGRA_PINGROUP_KBCA,
+ TEGRA_PINGROUP_KBCB,
+ TEGRA_PINGROUP_KBCC,
+ TEGRA_PINGROUP_KBCD,
+ TEGRA_PINGROUP_KBCE,
+ TEGRA_PINGROUP_KBCF,
+ TEGRA_PINGROUP_LCSN,
+ TEGRA_PINGROUP_LD0,
+ TEGRA_PINGROUP_LD1,
+ TEGRA_PINGROUP_LD10,
+ TEGRA_PINGROUP_LD11,
+ TEGRA_PINGROUP_LD12,
+ TEGRA_PINGROUP_LD13,
+ TEGRA_PINGROUP_LD14,
+ TEGRA_PINGROUP_LD15,
+ TEGRA_PINGROUP_LD16,
+ TEGRA_PINGROUP_LD17,
+ TEGRA_PINGROUP_LD2,
+ TEGRA_PINGROUP_LD3,
+ TEGRA_PINGROUP_LD4,
+ TEGRA_PINGROUP_LD5,
+ TEGRA_PINGROUP_LD6,
+ TEGRA_PINGROUP_LD7,
+ TEGRA_PINGROUP_LD8,
+ TEGRA_PINGROUP_LD9,
+ TEGRA_PINGROUP_LDC,
+ TEGRA_PINGROUP_LDI,
+ TEGRA_PINGROUP_LHP0,
+ TEGRA_PINGROUP_LHP1,
+ TEGRA_PINGROUP_LHP2,
+ TEGRA_PINGROUP_LHS,
+ TEGRA_PINGROUP_LM0,
+ TEGRA_PINGROUP_LM1,
+ TEGRA_PINGROUP_LPP,
+ TEGRA_PINGROUP_LPW0,
+ TEGRA_PINGROUP_LPW1,
+ TEGRA_PINGROUP_LPW2,
+ TEGRA_PINGROUP_LSC0,
+ TEGRA_PINGROUP_LSC1,
+ TEGRA_PINGROUP_LSCK,
+ TEGRA_PINGROUP_LSDA,
+ TEGRA_PINGROUP_LSDI,
+ TEGRA_PINGROUP_LSPI,
+ TEGRA_PINGROUP_LVP0,
+ TEGRA_PINGROUP_LVP1,
+ TEGRA_PINGROUP_LVS,
+ TEGRA_PINGROUP_OWC,
+ TEGRA_PINGROUP_PMC,
+ TEGRA_PINGROUP_PTA,
+ TEGRA_PINGROUP_RM,
+ TEGRA_PINGROUP_SDB,
+ TEGRA_PINGROUP_SDC,
+ TEGRA_PINGROUP_SDD,
+ TEGRA_PINGROUP_SDIO1,
+ TEGRA_PINGROUP_SLXA,
+ TEGRA_PINGROUP_SLXC,
+ TEGRA_PINGROUP_SLXD,
+ TEGRA_PINGROUP_SLXK,
+ TEGRA_PINGROUP_SPDI,
+ TEGRA_PINGROUP_SPDO,
+ TEGRA_PINGROUP_SPIA,
+ TEGRA_PINGROUP_SPIB,
+ TEGRA_PINGROUP_SPIC,
+ TEGRA_PINGROUP_SPID,
+ TEGRA_PINGROUP_SPIE,
+ TEGRA_PINGROUP_SPIF,
+ TEGRA_PINGROUP_SPIG,
+ TEGRA_PINGROUP_SPIH,
+ TEGRA_PINGROUP_UAA,
+ TEGRA_PINGROUP_UAB,
+ TEGRA_PINGROUP_UAC,
+ TEGRA_PINGROUP_UAD,
+ TEGRA_PINGROUP_UCA,
+ TEGRA_PINGROUP_UCB,
+ TEGRA_PINGROUP_UDA,
+ /* these pin groups only have pullup and pull down control */
+ TEGRA_PINGROUP_CK32,
+ TEGRA_PINGROUP_DDRC,
+ TEGRA_PINGROUP_PMCA,
+ TEGRA_PINGROUP_PMCB,
+ TEGRA_PINGROUP_PMCC,
+ TEGRA_PINGROUP_PMCD,
+ TEGRA_PINGROUP_PMCE,
+ TEGRA_PINGROUP_XM2C,
+ TEGRA_PINGROUP_XM2D,
+ TEGRA_MAX_PINGROUP,
+};
+
+enum tegra_drive_pingroup {
+ TEGRA_DRIVE_PINGROUP_AO1 = 0,
+ TEGRA_DRIVE_PINGROUP_AO2,
+ TEGRA_DRIVE_PINGROUP_AT1,
+ TEGRA_DRIVE_PINGROUP_AT2,
+ TEGRA_DRIVE_PINGROUP_CDEV1,
+ TEGRA_DRIVE_PINGROUP_CDEV2,
+ TEGRA_DRIVE_PINGROUP_CSUS,
+ TEGRA_DRIVE_PINGROUP_DAP1,
+ TEGRA_DRIVE_PINGROUP_DAP2,
+ TEGRA_DRIVE_PINGROUP_DAP3,
+ TEGRA_DRIVE_PINGROUP_DAP4,
+ TEGRA_DRIVE_PINGROUP_DBG,
+ TEGRA_DRIVE_PINGROUP_LCD1,
+ TEGRA_DRIVE_PINGROUP_LCD2,
+ TEGRA_DRIVE_PINGROUP_SDMMC2,
+ TEGRA_DRIVE_PINGROUP_SDMMC3,
+ TEGRA_DRIVE_PINGROUP_SPI,
+ TEGRA_DRIVE_PINGROUP_UAA,
+ TEGRA_DRIVE_PINGROUP_UAB,
+ TEGRA_DRIVE_PINGROUP_UART2,
+ TEGRA_DRIVE_PINGROUP_UART3,
+ TEGRA_DRIVE_PINGROUP_VI1,
+ TEGRA_DRIVE_PINGROUP_VI2,
+ TEGRA_DRIVE_PINGROUP_XM2A,
+ TEGRA_DRIVE_PINGROUP_XM2C,
+ TEGRA_DRIVE_PINGROUP_XM2D,
+ TEGRA_DRIVE_PINGROUP_XM2CLK,
+ TEGRA_DRIVE_PINGROUP_MEMCOMP,
+ TEGRA_MAX_DRIVE_PINGROUP,
+};
+
+#endif
+
diff --git a/arch/arm/mach-tegra/include/mach/pinmux.h b/arch/arm/mach-tegra/include/mach/pinmux.h
index 41c8ce5..defd877 100644
--- a/arch/arm/mach-tegra/include/mach/pinmux.h
+++ b/arch/arm/mach-tegra/include/mach/pinmux.h
@@ -17,126 +17,11 @@
#ifndef __MACH_TEGRA_PINMUX_H
#define __MACH_TEGRA_PINMUX_H
-enum tegra_pingroup {
- TEGRA_PINGROUP_ATA = 0,
- TEGRA_PINGROUP_ATB,
- TEGRA_PINGROUP_ATC,
- TEGRA_PINGROUP_ATD,
- TEGRA_PINGROUP_ATE,
- TEGRA_PINGROUP_CDEV1,
- TEGRA_PINGROUP_CDEV2,
- TEGRA_PINGROUP_CRTP,
- TEGRA_PINGROUP_CSUS,
- TEGRA_PINGROUP_DAP1,
- TEGRA_PINGROUP_DAP2,
- TEGRA_PINGROUP_DAP3,
- TEGRA_PINGROUP_DAP4,
- TEGRA_PINGROUP_DDC,
- TEGRA_PINGROUP_DTA,
- TEGRA_PINGROUP_DTB,
- TEGRA_PINGROUP_DTC,
- TEGRA_PINGROUP_DTD,
- TEGRA_PINGROUP_DTE,
- TEGRA_PINGROUP_DTF,
- TEGRA_PINGROUP_GMA,
- TEGRA_PINGROUP_GMB,
- TEGRA_PINGROUP_GMC,
- TEGRA_PINGROUP_GMD,
- TEGRA_PINGROUP_GME,
- TEGRA_PINGROUP_GPU,
- TEGRA_PINGROUP_GPU7,
- TEGRA_PINGROUP_GPV,
- TEGRA_PINGROUP_HDINT,
- TEGRA_PINGROUP_I2CP,
- TEGRA_PINGROUP_IRRX,
- TEGRA_PINGROUP_IRTX,
- TEGRA_PINGROUP_KBCA,
- TEGRA_PINGROUP_KBCB,
- TEGRA_PINGROUP_KBCC,
- TEGRA_PINGROUP_KBCD,
- TEGRA_PINGROUP_KBCE,
- TEGRA_PINGROUP_KBCF,
- TEGRA_PINGROUP_LCSN,
- TEGRA_PINGROUP_LD0,
- TEGRA_PINGROUP_LD1,
- TEGRA_PINGROUP_LD10,
- TEGRA_PINGROUP_LD11,
- TEGRA_PINGROUP_LD12,
- TEGRA_PINGROUP_LD13,
- TEGRA_PINGROUP_LD14,
- TEGRA_PINGROUP_LD15,
- TEGRA_PINGROUP_LD16,
- TEGRA_PINGROUP_LD17,
- TEGRA_PINGROUP_LD2,
- TEGRA_PINGROUP_LD3,
- TEGRA_PINGROUP_LD4,
- TEGRA_PINGROUP_LD5,
- TEGRA_PINGROUP_LD6,
- TEGRA_PINGROUP_LD7,
- TEGRA_PINGROUP_LD8,
- TEGRA_PINGROUP_LD9,
- TEGRA_PINGROUP_LDC,
- TEGRA_PINGROUP_LDI,
- TEGRA_PINGROUP_LHP0,
- TEGRA_PINGROUP_LHP1,
- TEGRA_PINGROUP_LHP2,
- TEGRA_PINGROUP_LHS,
- TEGRA_PINGROUP_LM0,
- TEGRA_PINGROUP_LM1,
- TEGRA_PINGROUP_LPP,
- TEGRA_PINGROUP_LPW0,
- TEGRA_PINGROUP_LPW1,
- TEGRA_PINGROUP_LPW2,
- TEGRA_PINGROUP_LSC0,
- TEGRA_PINGROUP_LSC1,
- TEGRA_PINGROUP_LSCK,
- TEGRA_PINGROUP_LSDA,
- TEGRA_PINGROUP_LSDI,
- TEGRA_PINGROUP_LSPI,
- TEGRA_PINGROUP_LVP0,
- TEGRA_PINGROUP_LVP1,
- TEGRA_PINGROUP_LVS,
- TEGRA_PINGROUP_OWC,
- TEGRA_PINGROUP_PMC,
- TEGRA_PINGROUP_PTA,
- TEGRA_PINGROUP_RM,
- TEGRA_PINGROUP_SDB,
- TEGRA_PINGROUP_SDC,
- TEGRA_PINGROUP_SDD,
- TEGRA_PINGROUP_SDIO1,
- TEGRA_PINGROUP_SLXA,
- TEGRA_PINGROUP_SLXC,
- TEGRA_PINGROUP_SLXD,
- TEGRA_PINGROUP_SLXK,
- TEGRA_PINGROUP_SPDI,
- TEGRA_PINGROUP_SPDO,
- TEGRA_PINGROUP_SPIA,
- TEGRA_PINGROUP_SPIB,
- TEGRA_PINGROUP_SPIC,
- TEGRA_PINGROUP_SPID,
- TEGRA_PINGROUP_SPIE,
- TEGRA_PINGROUP_SPIF,
- TEGRA_PINGROUP_SPIG,
- TEGRA_PINGROUP_SPIH,
- TEGRA_PINGROUP_UAA,
- TEGRA_PINGROUP_UAB,
- TEGRA_PINGROUP_UAC,
- TEGRA_PINGROUP_UAD,
- TEGRA_PINGROUP_UCA,
- TEGRA_PINGROUP_UCB,
- TEGRA_PINGROUP_UDA,
- /* these pin groups only have pullup and pull down control */
- TEGRA_PINGROUP_CK32,
- TEGRA_PINGROUP_DDRC,
- TEGRA_PINGROUP_PMCA,
- TEGRA_PINGROUP_PMCB,
- TEGRA_PINGROUP_PMCC,
- TEGRA_PINGROUP_PMCD,
- TEGRA_PINGROUP_PMCE,
- TEGRA_PINGROUP_XM2C,
- TEGRA_PINGROUP_XM2D,
- TEGRA_MAX_PINGROUP,
-};
+#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
+#include "pinmux-t2.h"
+#else
+#error "Undefined Tegra architecture"
+#endif
enum tegra_mux_func {
TEGRA_MUX_RSVD = 0x8000,
@@ -205,6 +90,7 @@ enum tegra_mux_func {
TEGRA_MUX_VI,
TEGRA_MUX_VI_SENSOR_CLK,
TEGRA_MUX_XIO,
+ TEGRA_MUX_SAFE,
TEGRA_MAX_MUX,
};
@@ -219,6 +105,18 @@ enum tegra_tristate {
TEGRA_TRI_TRISTATE = 1,
};
+enum tegra_vddio {
+ TEGRA_VDDIO_BB = 0,
+ TEGRA_VDDIO_LCD,
+ TEGRA_VDDIO_VI,
+ TEGRA_VDDIO_UART,
+ TEGRA_VDDIO_DDR,
+ TEGRA_VDDIO_NAND,
+ TEGRA_VDDIO_SYS,
+ TEGRA_VDDIO_AUDIO,
+ TEGRA_VDDIO_SD,
+};
+
struct tegra_pingroup_config {
enum tegra_pingroup pingroup;
enum tegra_mux_func func;
@@ -270,38 +168,6 @@ enum tegra_pull_strength {
TEGRA_MAX_PULL,
};
-enum tegra_drive_pingroup {
- TEGRA_DRIVE_PINGROUP_AO1 = 0,
- TEGRA_DRIVE_PINGROUP_AO2,
- TEGRA_DRIVE_PINGROUP_AT1,
- TEGRA_DRIVE_PINGROUP_AT2,
- TEGRA_DRIVE_PINGROUP_CDEV1,
- TEGRA_DRIVE_PINGROUP_CDEV2,
- TEGRA_DRIVE_PINGROUP_CSUS,
- TEGRA_DRIVE_PINGROUP_DAP1,
- TEGRA_DRIVE_PINGROUP_DAP2,
- TEGRA_DRIVE_PINGROUP_DAP3,
- TEGRA_DRIVE_PINGROUP_DAP4,
- TEGRA_DRIVE_PINGROUP_DBG,
- TEGRA_DRIVE_PINGROUP_LCD1,
- TEGRA_DRIVE_PINGROUP_LCD2,
- TEGRA_DRIVE_PINGROUP_SDMMC2,
- TEGRA_DRIVE_PINGROUP_SDMMC3,
- TEGRA_DRIVE_PINGROUP_SPI,
- TEGRA_DRIVE_PINGROUP_UAA,
- TEGRA_DRIVE_PINGROUP_UAB,
- TEGRA_DRIVE_PINGROUP_UART2,
- TEGRA_DRIVE_PINGROUP_UART3,
- TEGRA_DRIVE_PINGROUP_VI1,
- TEGRA_DRIVE_PINGROUP_VI2,
- TEGRA_DRIVE_PINGROUP_XM2A,
- TEGRA_DRIVE_PINGROUP_XM2C,
- TEGRA_DRIVE_PINGROUP_XM2D,
- TEGRA_DRIVE_PINGROUP_XM2CLK,
- TEGRA_DRIVE_PINGROUP_MEMCOMP,
- TEGRA_MAX_DRIVE_PINGROUP,
-};
-
enum tegra_drive {
TEGRA_DRIVE_DIV_8 = 0,
TEGRA_DRIVE_DIV_4,
@@ -331,18 +197,44 @@ struct tegra_drive_pingroup_config {
enum tegra_slew slew_falling;
};
-int tegra_pinmux_set_func(enum tegra_pingroup pg, enum tegra_mux_func func);
-int tegra_pinmux_set_tristate(enum tegra_pingroup pg, enum tegra_tristate tristate);
-int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg, enum tegra_pullupdown pupd);
+struct tegra_drive_pingroup_desc {
+ const char *name;
+ s16 reg;
+};
+
+struct tegra_pingroup_desc {
+ const char *name;
+ int funcs[4];
+ int func_safe;
+ int vddio;
+ s16 tri_reg; /* offset into the TRISTATE_REG_* register bank */
+ s16 mux_reg; /* offset into the PIN_MUX_CTL_* register bank */
+ s16 pupd_reg; /* offset into the PULL_UPDOWN_REG_* register bank */
+ s8 tri_bit; /* offset into the TRISTATE_REG_* register bit */
+ s8 mux_bit; /* offset into the PIN_MUX_CTL_* register bit */
+ s8 pupd_bit; /* offset into the PULL_UPDOWN_REG_* register bit */
+};
+
+extern const struct tegra_pingroup_desc tegra_soc_pingroups[];
+extern const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[];
-void tegra_pinmux_config_pingroup(enum tegra_pingroup pingroup,
- enum tegra_mux_func func, enum tegra_pullupdown pupd,
+int tegra_pinmux_set_tristate(enum tegra_pingroup pg,
enum tegra_tristate tristate);
+int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
+ enum tegra_pullupdown pupd);
-void tegra_pinmux_config_table(struct tegra_pingroup_config *config, int len);
+void tegra_pinmux_config_table(const struct tegra_pingroup_config *config,
+ int len);
void tegra_drive_pinmux_config_table(struct tegra_drive_pingroup_config *config,
int len);
-
+void tegra_pinmux_set_safe_pinmux_table(const struct tegra_pingroup_config *config,
+ int len);
+void tegra_pinmux_config_pinmux_table(const struct tegra_pingroup_config *config,
+ int len);
+void tegra_pinmux_config_tristate_table(const struct tegra_pingroup_config *config,
+ int len, enum tegra_tristate tristate);
+void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *config,
+ int len, enum tegra_pullupdown pupd);
#endif
diff --git a/arch/arm/mach-tegra/pinmux-t2-tables.c b/arch/arm/mach-tegra/pinmux-t2-tables.c
new file mode 100644
index 0000000..a6ea34e
--- /dev/null
+++ b/arch/arm/mach-tegra/pinmux-t2-tables.c
@@ -0,0 +1,260 @@
+/*
+ * linux/arch/arm/mach-tegra/pinmux-t2-tables.c
+ *
+ * Common pinmux configurations for Tegra 2 SoCs
+ *
+ * Copyright (C) 2010 NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <mach/iomap.h>
+#include <mach/pinmux.h>
+
+#define DRIVE_PINGROUP(pg_name, r) \
+ [TEGRA_DRIVE_PINGROUP_ ## pg_name] = { \
+ .name = #pg_name, \
+ .reg = r \
+ }
+
+const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE_PINGROUP] = {
+ DRIVE_PINGROUP(AO1, 0x868),
+ DRIVE_PINGROUP(AO2, 0x86c),
+ DRIVE_PINGROUP(AT1, 0x870),
+ DRIVE_PINGROUP(AT2, 0x874),
+ DRIVE_PINGROUP(CDEV1, 0x878),
+ DRIVE_PINGROUP(CDEV2, 0x87c),
+ DRIVE_PINGROUP(CSUS, 0x880),
+ DRIVE_PINGROUP(DAP1, 0x884),
+ DRIVE_PINGROUP(DAP2, 0x888),
+ DRIVE_PINGROUP(DAP3, 0x88c),
+ DRIVE_PINGROUP(DAP4, 0x890),
+ DRIVE_PINGROUP(DBG, 0x894),
+ DRIVE_PINGROUP(LCD1, 0x898),
+ DRIVE_PINGROUP(LCD2, 0x89c),
+ DRIVE_PINGROUP(SDMMC2, 0x8a0),
+ DRIVE_PINGROUP(SDMMC3, 0x8a4),
+ DRIVE_PINGROUP(SPI, 0x8a8),
+ DRIVE_PINGROUP(UAA, 0x8ac),
+ DRIVE_PINGROUP(UAB, 0x8b0),
+ DRIVE_PINGROUP(UART2, 0x8b4),
+ DRIVE_PINGROUP(UART3, 0x8b8),
+ DRIVE_PINGROUP(VI1, 0x8bc),
+ DRIVE_PINGROUP(VI2, 0x8c0),
+ DRIVE_PINGROUP(XM2A, 0x8c4),
+ DRIVE_PINGROUP(XM2C, 0x8c8),
+ DRIVE_PINGROUP(XM2D, 0x8cc),
+ DRIVE_PINGROUP(XM2CLK, 0x8d0),
+ DRIVE_PINGROUP(MEMCOMP, 0x8d4),
+};
+
+#define PINGROUP(pg_name, vdd, f0, f1, f2, f3, f_safe, \
+ tri_r, tri_b, mux_r, mux_b, pupd_r, pupd_b) \
+ [TEGRA_PINGROUP_ ## pg_name] = { \
+ .name = #pg_name, \
+ .vddio = TEGRA_VDDIO_ ## vdd, \
+ .funcs = { \
+ TEGRA_MUX_ ## f0, \
+ TEGRA_MUX_ ## f1, \
+ TEGRA_MUX_ ## f2, \
+ TEGRA_MUX_ ## f3, \
+ }, \
+ .func_safe = TEGRA_MUX_ ## f_safe, \
+ .tri_reg = tri_r, \
+ .tri_bit = tri_b, \
+ .mux_reg = mux_r, \
+ .mux_bit = mux_b, \
+ .pupd_reg = pupd_r, \
+ .pupd_bit = pupd_b, \
+ }
+
+const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
+ PINGROUP(ATA, NAND, IDE, NAND, GMI, RSVD, IDE, 0x14, 0, 0x80, 24, 0xA0, 0),
+ PINGROUP(ATB, NAND, IDE, NAND, GMI, SDIO4, IDE, 0x14, 1, 0x80, 16, 0xA0, 2),
+ PINGROUP(ATC, NAND, IDE, NAND, GMI, SDIO4, IDE, 0x14, 2, 0x80, 22, 0xA0, 4),
+ PINGROUP(ATD, NAND, IDE, NAND, GMI, SDIO4, IDE, 0x14, 3, 0x80, 20, 0xA0, 6),
+ PINGROUP(ATE, NAND, IDE, NAND, GMI, RSVD, IDE, 0x18, 25, 0x80, 12, 0xA0, 8),
+ PINGROUP(CDEV1, AUDIO, OSC, PLLA_OUT, PLLM_OUT1, AUDIO_SYNC, OSC, 0x14, 4, 0x88, 2, 0xA8, 0),
+ PINGROUP(CDEV2, AUDIO, OSC, AHB_CLK, APB_CLK, PLLP_OUT4, OSC, 0x14, 5, 0x88, 4, 0xA8, 2),
+ PINGROUP(CRTP, LCD, CRT, RSVD, RSVD, RSVD, RSVD, 0x20, 14, 0x98, 20, 0xA4, 24),
+ PINGROUP(CSUS, VI, PLLC_OUT1, PLLP_OUT2, PLLP_OUT3, VI_SENSOR_CLK, PLLC_OUT1, 0x14, 6, 0x88, 6, 0xAC, 24),
+ PINGROUP(DAP1, AUDIO, DAP1, RSVD, GMI, SDIO2, DAP1, 0x14, 7, 0x88, 20, 0xA0, 10),
+ PINGROUP(DAP2, AUDIO, DAP2, TWC, RSVD, GMI, DAP2, 0x14, 8, 0x88, 22, 0xA0, 12),
+ PINGROUP(DAP3, BB, DAP3, RSVD, RSVD, RSVD, DAP3, 0x14, 9, 0x88, 24, 0xA0, 14),
+ PINGROUP(DAP4, UART, DAP4, RSVD, GMI, RSVD, DAP4, 0x14, 10, 0x88, 26, 0xA0, 16),
+ PINGROUP(DDC, LCD, I2C2, RSVD, RSVD, RSVD, RSVD4, 0x18, 31, 0x88, 0, 0xB0, 28),
+ PINGROUP(DTA, VI, RSVD, SDIO2, VI, RSVD, RSVD4, 0x14, 11, 0x84, 20, 0xA0, 18),
+ PINGROUP(DTB, VI, RSVD, RSVD, VI, SPI1, RSVD1, 0x14, 12, 0x84, 22, 0xA0, 20),
+ PINGROUP(DTC, VI, RSVD, RSVD, VI, RSVD, RSVD1, 0x14, 13, 0x84, 26, 0xA0, 22),
+ PINGROUP(DTD, VI, RSVD, SDIO2, VI, RSVD, RSVD1, 0x14, 14, 0x84, 28, 0xA0, 24),
+ PINGROUP(DTE, VI, RSVD, RSVD, VI, SPI1, RSVD1, 0x14, 15, 0x84, 30, 0xA0, 26),
+ PINGROUP(DTF, VI, I2C3, RSVD, VI, RSVD, RSVD4, 0x20, 12, 0x98, 30, 0xA0, 28),
+ PINGROUP(GMA, NAND, UARTE, SPI3, GMI, SDIO4, SPI3, 0x14, 28, 0x84, 0, 0xB0, 20),
+ PINGROUP(GMB, NAND, IDE, NAND, GMI, GMI_INT, GMI, 0x18, 29, 0x88, 28, 0xB0, 22),
+ PINGROUP(GMC, NAND, UARTD, SPI4, GMI, SFLASH, SPI4, 0x14, 29, 0x84, 2, 0xB0, 24),
+ PINGROUP(GMD, NAND, RSVD, NAND, GMI, SFLASH, GMI, 0x18, 30, 0x88, 30, 0xB0, 26),
+ PINGROUP(GME, NAND, RSVD, DAP5, GMI, SDIO4, GMI, 0x18, 0, 0x8C, 0, 0xA8, 24),
+ PINGROUP(GPU, UART, PWM, UARTA, GMI, RSVD, RSVD4, 0x14, 16, 0x8C, 4, 0xA4, 20),
+ PINGROUP(GPU7, SYS, RTCK, RSVD, RSVD, RSVD, RTCK, 0x20, 11, 0x98, 28, 0xA4, 6),
+ PINGROUP(GPV, SD, PCIE, RSVD, RSVD, RSVD, PCIE, 0x14, 17, 0x8C, 2, 0xA0, 30),
+ PINGROUP(HDINT, LCD, HDMI, RSVD, RSVD, RSVD, HDMI, 0x1C, 23, 0x84, 4, 0xAC, 22),
+ PINGROUP(I2CP, SYS, I2C, RSVD, RSVD, RSVD, RSVD4, 0x14, 18, 0x88, 8, 0xA4, 2),
+ PINGROUP(IRRX, UART, UARTA, UARTB, GMI, SPI4, UARTB, 0x14, 20, 0x88, 18, 0xA8, 22),
+ PINGROUP(IRTX, UART, UARTA, UARTB, GMI, SPI4, UARTB, 0x14, 19, 0x88, 16, 0xA8, 20),
+ PINGROUP(KBCA, SYS, KBC, NAND, SDIO2, EMC_TEST0_DLL, KBC, 0x14, 22, 0x88, 10, 0xA4, 8),
+ PINGROUP(KBCB, SYS, KBC, NAND, SDIO2, MIO, KBC, 0x14, 21, 0x88, 12, 0xA4, 10),
+ PINGROUP(KBCC, SYS, KBC, NAND, TRACE, EMC_TEST1_DLL, KBC, 0x18, 26, 0x88, 14, 0xA4, 12),
+ PINGROUP(KBCD, SYS, KBC, NAND, SDIO2, MIO, KBC, 0x20, 10, 0x98, 26, 0xA4, 14),
+ PINGROUP(KBCE, SYS, KBC, NAND, OWR, RSVD, KBC, 0x14, 26, 0x80, 28, 0xB0, 2),
+ PINGROUP(KBCF, SYS, KBC, NAND, TRACE, MIO, KBC, 0x14, 27, 0x80, 26, 0xB0, 0),
+ PINGROUP(LCSN, LCD, DISPLAYA, DISPLAYB, SPI3, RSVD, RSVD4, 0x1C, 31, 0x90, 12, 0xAC, 20),
+ PINGROUP(LD0, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 0, 0x94, 0, 0xAC, 12),
+ PINGROUP(LD1, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 1, 0x94, 2, 0xAC, 12),
+ PINGROUP(LD10, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 10, 0x94, 20, 0xAC, 12),
+ PINGROUP(LD11, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 11, 0x94, 22, 0xAC, 12),
+ PINGROUP(LD12, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 12, 0x94, 24, 0xAC, 12),
+ PINGROUP(LD13, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 13, 0x94, 26, 0xAC, 12),
+ PINGROUP(LD14, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 14, 0x94, 28, 0xAC, 12),
+ PINGROUP(LD15, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 15, 0x94, 30, 0xAC, 12),
+ PINGROUP(LD16, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 16, 0x98, 0, 0xAC, 12),
+ PINGROUP(LD17, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 17, 0x98, 2, 0xAC, 12),
+ PINGROUP(LD2, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 2, 0x94, 4, 0xAC, 12),
+ PINGROUP(LD3, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 3, 0x94, 6, 0xAC, 12),
+ PINGROUP(LD4, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 4, 0x94, 8, 0xAC, 12),
+ PINGROUP(LD5, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 5, 0x94, 10, 0xAC, 12),
+ PINGROUP(LD6, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 6, 0x94, 12, 0xAC, 12),
+ PINGROUP(LD7, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 7, 0x94, 14, 0xAC, 12),
+ PINGROUP(LD8, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 8, 0x94, 16, 0xAC, 12),
+ PINGROUP(LD9, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 9, 0x94, 18, 0xAC, 12),
+ PINGROUP(LDC, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 30, 0x90, 14, 0xAC, 20),
+ PINGROUP(LDI, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x20, 6, 0x98, 16, 0xAC, 18),
+ PINGROUP(LHP0, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 18, 0x98, 10, 0xAC, 16),
+ PINGROUP(LHP1, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 19, 0x98, 4, 0xAC, 14),
+ PINGROUP(LHP2, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 20, 0x98, 6, 0xAC, 14),
+ PINGROUP(LHS, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x20, 7, 0x90, 22, 0xAC, 22),
+ PINGROUP(LM0, LCD, DISPLAYA, DISPLAYB, SPI3, RSVD, RSVD4, 0x1C, 24, 0x90, 26, 0xAC, 22),
+ PINGROUP(LM1, LCD, DISPLAYA, DISPLAYB, RSVD, CRT, RSVD3, 0x1C, 25, 0x90, 28, 0xAC, 22),
+ PINGROUP(LPP, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x20, 8, 0x98, 14, 0xAC, 18),
+ PINGROUP(LPW0, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x20, 3, 0x90, 0, 0xAC, 20),
+ PINGROUP(LPW1, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x20, 4, 0x90, 2, 0xAC, 20),
+ PINGROUP(LPW2, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x20, 5, 0x90, 4, 0xAC, 20),
+ PINGROUP(LSC0, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 27, 0x90, 18, 0xAC, 22),
+ PINGROUP(LSC1, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x1C, 28, 0x90, 20, 0xAC, 20),
+ PINGROUP(LSCK, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x1C, 29, 0x90, 16, 0xAC, 20),
+ PINGROUP(LSDA, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x20, 1, 0x90, 8, 0xAC, 20),
+ PINGROUP(LSDI, LCD, DISPLAYA, DISPLAYB, SPI3, RSVD, DISPLAYA, 0x20, 2, 0x90, 6, 0xAC, 20),
+ PINGROUP(LSPI, LCD, DISPLAYA, DISPLAYB, XIO, HDMI, DISPLAYA, 0x20, 0, 0x90, 10, 0xAC, 22),
+ PINGROUP(LVP0, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 21, 0x90, 30, 0xAC, 22),
+ PINGROUP(LVP1, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 22, 0x98, 8, 0xAC, 16),
+ PINGROUP(LVS, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 26, 0x90, 24, 0xAC, 22),
+ PINGROUP(OWC, SYS, OWR, RSVD, RSVD, RSVD, OWR, 0x14, 31, 0x84, 8, 0xB0, 30),
+ PINGROUP(PMC, SYS, PWR_ON, PWR_INTR, RSVD, RSVD, PWR_ON, 0x14, 23, 0x98, 18, -1, -1),
+ PINGROUP(PTA, NAND, I2C2, HDMI, GMI, RSVD, RSVD4, 0x14, 24, 0x98, 22, 0xA4, 4),
+ PINGROUP(RM, UART, I2C, RSVD, RSVD, RSVD, RSVD4, 0x14, 25, 0x80, 14, 0xA4, 0),
+ PINGROUP(SDB, SD, UARTA, PWM, SDIO3, SPI2, PWM, 0x20, 15, 0x8C, 10, -1, -1),
+ PINGROUP(SDC, SD, PWM, TWC, SDIO3, SPI3, TWC, 0x18, 1, 0x8C, 12, 0xAC, 28),
+ PINGROUP(SDD, SD, UARTA, PWM, SDIO3, SPI3, PWM, 0x18, 2, 0x8C, 14, 0xAC, 30),
+ PINGROUP(SDIO1, BB, SDIO1, RSVD, UARTE, UARTA, RSVD2, 0x14, 30, 0x80, 30, 0xB0, 18),
+ PINGROUP(SLXA, SD, PCIE, SPI4, SDIO3, SPI2, PCIE, 0x18, 3, 0x84, 6, 0xA4, 22),
+ PINGROUP(SLXC, SD, SPDIF, SPI4, SDIO3, SPI2, SPI4, 0x18, 5, 0x84, 10, 0xA4, 26),
+ PINGROUP(SLXD, SD, SPDIF, SPI4, SDIO3, SPI2, SPI4, 0x18, 6, 0x84, 12, 0xA4, 28),
+ PINGROUP(SLXK, SD, PCIE, SPI4, SDIO3, SPI2, PCIE, 0x18, 7, 0x84, 14, 0xA4, 30),
+ PINGROUP(SPDI, AUDIO, SPDIF, RSVD, I2C, SDIO2, RSVD2, 0x18, 8, 0x8C, 8, 0xA4, 16),
+ PINGROUP(SPDO, AUDIO, SPDIF, RSVD, I2C, SDIO2, RSVD2, 0x18, 9, 0x8C, 6, 0xA4, 18),
+ PINGROUP(SPIA, AUDIO, SPI1, SPI2, SPI3, GMI, GMI, 0x18, 10, 0x8C, 30, 0xA8, 4),
+ PINGROUP(SPIB, AUDIO, SPI1, SPI2, SPI3, GMI, GMI, 0x18, 11, 0x8C, 28, 0xA8, 6),
+ PINGROUP(SPIC, AUDIO, SPI1, SPI2, SPI3, GMI, GMI, 0x18, 12, 0x8C, 26, 0xA8, 8),
+ PINGROUP(SPID, AUDIO, SPI2, SPI1, SPI2_ALT, GMI, GMI, 0x18, 13, 0x8C, 24, 0xA8, 10),
+ PINGROUP(SPIE, AUDIO, SPI2, SPI1, SPI2_ALT, GMI, GMI, 0x18, 14, 0x8C, 22, 0xA8, 12),
+ PINGROUP(SPIF, AUDIO, SPI3, SPI1, SPI2, RSVD, RSVD4, 0x18, 15, 0x8C, 20, 0xA8, 14),
+ PINGROUP(SPIG, AUDIO, SPI3, SPI2, SPI2_ALT, I2C, SPI2_ALT, 0x18, 16, 0x8C, 18, 0xA8, 16),
+ PINGROUP(SPIH, AUDIO, SPI3, SPI2, SPI2_ALT, I2C, SPI2_ALT, 0x18, 17, 0x8C, 16, 0xA8, 18),
+ PINGROUP(UAA, BB, SPI3, MIPI_HS, UARTA, ULPI, MIPI_HS, 0x18, 18, 0x80, 0, 0xAC, 0),
+ PINGROUP(UAB, BB, SPI2, MIPI_HS, UARTA, ULPI, MIPI_HS, 0x18, 19, 0x80, 2, 0xAC, 2),
+ PINGROUP(UAC, BB, OWR, RSVD, RSVD, RSVD, RSVD4, 0x18, 20, 0x80, 4, 0xAC, 4),
+ PINGROUP(UAD, UART, IRDA, SPDIF, UARTA, SPI4, SPDIF, 0x18, 21, 0x80, 6, 0xAC, 6),
+ PINGROUP(UCA, UART, UARTC, RSVD, GMI, RSVD, RSVD4, 0x18, 22, 0x84, 16, 0xAC, 8),
+ PINGROUP(UCB, UART, UARTC, PWM, GMI, RSVD, RSVD4, 0x18, 23, 0x84, 18, 0xAC, 10),
+ PINGROUP(UDA, BB, SPI1, RSVD, UARTD, ULPI, RSVD2, 0x20, 13, 0x80, 8, 0xB0, 16),
+ /* these pin groups only have pullup and pull down control */
+ PINGROUP(CK32, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 14),
+ PINGROUP(DDRC, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xAC, 26),
+ PINGROUP(PMCA, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 4),
+ PINGROUP(PMCB, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 6),
+ PINGROUP(PMCC, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 8),
+ PINGROUP(PMCD, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 10),
+ PINGROUP(PMCE, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 12),
+ PINGROUP(XM2C, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xA8, 30),
+ PINGROUP(XM2D, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xA8, 28),
+};
+
+#ifdef CONFIG_PM
+#define TRISTATE_REG_A 0x14
+#define TRISTATE_REG_NUM 4
+#define PIN_MUX_CTL_REG_A 0x80
+#define PIN_MUX_CTL_REG_NUM 8
+#define PULLUPDOWN_REG_A 0xa0
+#define PULLUPDOWN_REG_NUM 5
+
+static u32 pinmux_reg[TRISTATE_REG_NUM + PIN_MUX_CTL_REG_NUM +
+ PULLUPDOWN_REG_NUM];
+
+static inline unsigned long pg_readl(unsigned long offset)
+{
+ return readl(IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
+}
+
+static inline void pg_writel(unsigned long value, unsigned long offset)
+{
+ writel(value, IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
+}
+
+void tegra_pinmux_suspend(void)
+{
+ unsigned int i;
+ u32 *ctx = pinmux_reg;
+
+ for (i = 0; i < TRISTATE_REG_NUM; i++)
+ *ctx++ = pg_readl(TRISTATE_REG_A + i*4);
+
+ for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
+ *ctx++ = pg_readl(PIN_MUX_CTL_REG_A + i*4);
+
+ for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
+ *ctx++ = pg_readl(PULLUPDOWN_REG_A + i*4);
+}
+
+void tegra_pinmux_resume(void)
+{
+ unsigned int i;
+ u32 *ctx = pinmux_reg;
+
+ for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
+ pg_writel(*ctx++, PIN_MUX_CTL_REG_A + i*4);
+
+ for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
+ pg_writel(*ctx++, PULLUPDOWN_REG_A + i*4);
+
+ for (i = 0; i < TRISTATE_REG_NUM; i++)
+ pg_writel(*ctx++, TRISTATE_REG_A + i*4);
+}
+#endif
diff --git a/arch/arm/mach-tegra/pinmux.c b/arch/arm/mach-tegra/pinmux.c
index 13ae102..f80d507 100644
--- a/arch/arm/mach-tegra/pinmux.c
+++ b/arch/arm/mach-tegra/pinmux.c
@@ -14,7 +14,8 @@
*
*/
-
+#include <linux/init.h>
+#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/spinlock.h>
@@ -23,21 +24,6 @@
#include <mach/iomap.h>
#include <mach/pinmux.h>
-
-#define TEGRA_TRI_STATE(x) (0x14 + (4 * (x)))
-#define TEGRA_PP_MUX_CTL(x) (0x80 + (4 * (x)))
-#define TEGRA_PP_PU_PD(x) (0xa0 + (4 * (x)))
-
-#define REG_A 0
-#define REG_B 1
-#define REG_C 2
-#define REG_D 3
-#define REG_E 4
-#define REG_F 5
-#define REG_G 6
-
-#define REG_N -1
-
#define HSM_EN(reg) (((reg) >> 2) & 0x1)
#define SCHMT_EN(reg) (((reg) >> 3) & 0x1)
#define LPMD(reg) (((reg) >> 4) & 0x3)
@@ -46,154 +32,8 @@
#define SLWR(reg) (((reg) >> 28) & 0x3)
#define SLWF(reg) (((reg) >> 30) & 0x3)
-struct tegra_pingroup_desc {
- const char *name;
- int funcs[4];
- s8 tri_reg; /* offset into the TRISTATE_REG_* register bank */
- s8 tri_bit; /* offset into the TRISTATE_REG_* register bit */
- s8 mux_reg; /* offset into the PIN_MUX_CTL_* register bank */
- s8 mux_bit; /* offset into the PIN_MUX_CTL_* register bit */
- s8 pupd_reg; /* offset into the PULL_UPDOWN_REG_* register bank */
- s8 pupd_bit; /* offset into the PULL_UPDOWN_REG_* register bit */
-};
-
-#define PINGROUP(pg_name, f0, f1, f2, f3, \
- tri_r, tri_b, mux_r, mux_b, pupd_r, pupd_b) \
- [TEGRA_PINGROUP_ ## pg_name] = { \
- .name = #pg_name, \
- .funcs = { \
- TEGRA_MUX_ ## f0, \
- TEGRA_MUX_ ## f1, \
- TEGRA_MUX_ ## f2, \
- TEGRA_MUX_ ## f3, \
- }, \
- .tri_reg = REG_ ## tri_r, \
- .tri_bit = tri_b, \
- .mux_reg = REG_ ## mux_r, \
- .mux_bit = mux_b, \
- .pupd_reg = REG_ ## pupd_r, \
- .pupd_bit = pupd_b, \
- }
-
-static const struct tegra_pingroup_desc pingroups[TEGRA_MAX_PINGROUP] = {
- PINGROUP(ATA, IDE, NAND, GMI, RSVD, A, 0, A, 24, A, 0),
- PINGROUP(ATB, IDE, NAND, GMI, SDIO4, A, 1, A, 16, A, 2),
- PINGROUP(ATC, IDE, NAND, GMI, SDIO4, A, 2, A, 22, A, 4),
- PINGROUP(ATD, IDE, NAND, GMI, SDIO4, A, 3, A, 20, A, 6),
- PINGROUP(ATE, IDE, NAND, GMI, RSVD, B, 25, A, 12, A, 8),
- PINGROUP(CDEV1, OSC, PLLA_OUT, PLLM_OUT1, AUDIO_SYNC, A, 4, C, 2, C, 0),
- PINGROUP(CDEV2, OSC, AHB_CLK, APB_CLK, PLLP_OUT4, A, 5, C, 4, C, 2),
- PINGROUP(CRTP, CRT, RSVD, RSVD, RSVD, D, 14, G, 20, B, 24),
- PINGROUP(CSUS, PLLC_OUT1, PLLP_OUT2, PLLP_OUT3, VI_SENSOR_CLK, A, 6, C, 6, D, 24),
- PINGROUP(DAP1, DAP1, RSVD, GMI, SDIO2, A, 7, C, 20, A, 10),
- PINGROUP(DAP2, DAP2, TWC, RSVD, GMI, A, 8, C, 22, A, 12),
- PINGROUP(DAP3, DAP3, RSVD, RSVD, RSVD, A, 9, C, 24, A, 14),
- PINGROUP(DAP4, DAP4, RSVD, GMI, RSVD, A, 10, C, 26, A, 16),
- PINGROUP(DDC, I2C2, RSVD, RSVD, RSVD, B, 31, C, 0, E, 28),
- PINGROUP(DTA, RSVD, SDIO2, VI, RSVD, A, 11, B, 20, A, 18),
- PINGROUP(DTB, RSVD, RSVD, VI, SPI1, A, 12, B, 22, A, 20),
- PINGROUP(DTC, RSVD, RSVD, VI, RSVD, A, 13, B, 26, A, 22),
- PINGROUP(DTD, RSVD, SDIO2, VI, RSVD, A, 14, B, 28, A, 24),
- PINGROUP(DTE, RSVD, RSVD, VI, SPI1, A, 15, B, 30, A, 26),
- PINGROUP(DTF, I2C3, RSVD, VI, RSVD, D, 12, G, 30, A, 28),
- PINGROUP(GMA, UARTE, SPI3, GMI, SDIO4, A, 28, B, 0, E, 20),
- PINGROUP(GMB, IDE, NAND, GMI, GMI_INT, B, 29, C, 28, E, 22),
- PINGROUP(GMC, UARTD, SPI4, GMI, SFLASH, A, 29, B, 2, E, 24),
- PINGROUP(GMD, RSVD, NAND, GMI, SFLASH, B, 30, C, 30, E, 26),
- PINGROUP(GME, RSVD, DAP5, GMI, SDIO4, B, 0, D, 0, C, 24),
- PINGROUP(GPU, PWM, UARTA, GMI, RSVD, A, 16, D, 4, B, 20),
- PINGROUP(GPU7, RTCK, RSVD, RSVD, RSVD, D, 11, G, 28, B, 6),
- PINGROUP(GPV, PCIE, RSVD, RSVD, RSVD, A, 17, D, 2, A, 30),
- PINGROUP(HDINT, HDMI, RSVD, RSVD, RSVD, C, 23, B, 4, D, 22),
- PINGROUP(I2CP, I2C, RSVD, RSVD, RSVD, A, 18, C, 8, B, 2),
- PINGROUP(IRRX, UARTA, UARTB, GMI, SPI4, A, 20, C, 18, C, 22),
- PINGROUP(IRTX, UARTA, UARTB, GMI, SPI4, A, 19, C, 16, C, 20),
- PINGROUP(KBCA, KBC, NAND, SDIO2, EMC_TEST0_DLL, A, 22, C, 10, B, 8),
- PINGROUP(KBCB, KBC, NAND, SDIO2, MIO, A, 21, C, 12, B, 10),
- PINGROUP(KBCC, KBC, NAND, TRACE, EMC_TEST1_DLL, B, 26, C, 14, B, 12),
- PINGROUP(KBCD, KBC, NAND, SDIO2, MIO, D, 10, G, 26, B, 14),
- PINGROUP(KBCE, KBC, NAND, OWR, RSVD, A, 26, A, 28, E, 2),
- PINGROUP(KBCF, KBC, NAND, TRACE, MIO, A, 27, A, 26, E, 0),
- PINGROUP(LCSN, DISPLAYA, DISPLAYB, SPI3, RSVD, C, 31, E, 12, D, 20),
- PINGROUP(LD0, DISPLAYA, DISPLAYB, XIO, RSVD, C, 0, F, 0, D, 12),
- PINGROUP(LD1, DISPLAYA, DISPLAYB, XIO, RSVD, C, 1, F, 2, D, 12),
- PINGROUP(LD10, DISPLAYA, DISPLAYB, XIO, RSVD, C, 10, F, 20, D, 12),
- PINGROUP(LD11, DISPLAYA, DISPLAYB, XIO, RSVD, C, 11, F, 22, D, 12),
- PINGROUP(LD12, DISPLAYA, DISPLAYB, XIO, RSVD, C, 12, F, 24, D, 12),
- PINGROUP(LD13, DISPLAYA, DISPLAYB, XIO, RSVD, C, 13, F, 26, D, 12),
- PINGROUP(LD14, DISPLAYA, DISPLAYB, XIO, RSVD, C, 14, F, 28, D, 12),
- PINGROUP(LD15, DISPLAYA, DISPLAYB, XIO, RSVD, C, 15, F, 30, D, 12),
- PINGROUP(LD16, DISPLAYA, DISPLAYB, XIO, RSVD, C, 16, G, 0, D, 12),
- PINGROUP(LD17, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 17, G, 2, D, 12),
- PINGROUP(LD2, DISPLAYA, DISPLAYB, XIO, RSVD, C, 2, F, 4, D, 12),
- PINGROUP(LD3, DISPLAYA, DISPLAYB, XIO, RSVD, C, 3, F, 6, D, 12),
- PINGROUP(LD4, DISPLAYA, DISPLAYB, XIO, RSVD, C, 4, F, 8, D, 12),
- PINGROUP(LD5, DISPLAYA, DISPLAYB, XIO, RSVD, C, 5, F, 10, D, 12),
- PINGROUP(LD6, DISPLAYA, DISPLAYB, XIO, RSVD, C, 6, F, 12, D, 12),
- PINGROUP(LD7, DISPLAYA, DISPLAYB, XIO, RSVD, C, 7, F, 14, D, 12),
- PINGROUP(LD8, DISPLAYA, DISPLAYB, XIO, RSVD, C, 8, F, 16, D, 12),
- PINGROUP(LD9, DISPLAYA, DISPLAYB, XIO, RSVD, C, 9, F, 18, D, 12),
- PINGROUP(LDC, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 30, E, 14, D, 20),
- PINGROUP(LDI, DISPLAYA, DISPLAYB, RSVD, RSVD, D, 6, G, 16, D, 18),
- PINGROUP(LHP0, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 18, G, 10, D, 16),
- PINGROUP(LHP1, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 19, G, 4, D, 14),
- PINGROUP(LHP2, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 20, G, 6, D, 14),
- PINGROUP(LHS, DISPLAYA, DISPLAYB, XIO, RSVD, D, 7, E, 22, D, 22),
- PINGROUP(LM0, DISPLAYA, DISPLAYB, SPI3, RSVD, C, 24, E, 26, D, 22),
- PINGROUP(LM1, DISPLAYA, DISPLAYB, RSVD, CRT, C, 25, E, 28, D, 22),
- PINGROUP(LPP, DISPLAYA, DISPLAYB, RSVD, RSVD, D, 8, G, 14, D, 18),
- PINGROUP(LPW0, DISPLAYA, DISPLAYB, SPI3, HDMI, D, 3, E, 0, D, 20),
- PINGROUP(LPW1, DISPLAYA, DISPLAYB, RSVD, RSVD, D, 4, E, 2, D, 20),
- PINGROUP(LPW2, DISPLAYA, DISPLAYB, SPI3, HDMI, D, 5, E, 4, D, 20),
- PINGROUP(LSC0, DISPLAYA, DISPLAYB, XIO, RSVD, C, 27, E, 18, D, 22),
- PINGROUP(LSC1, DISPLAYA, DISPLAYB, SPI3, HDMI, C, 28, E, 20, D, 20),
- PINGROUP(LSCK, DISPLAYA, DISPLAYB, SPI3, HDMI, C, 29, E, 16, D, 20),
- PINGROUP(LSDA, DISPLAYA, DISPLAYB, SPI3, HDMI, D, 1, E, 8, D, 20),
- PINGROUP(LSDI, DISPLAYA, DISPLAYB, SPI3, RSVD, D, 2, E, 6, D, 20),
- PINGROUP(LSPI, DISPLAYA, DISPLAYB, XIO, HDMI, D, 0, E, 10, D, 22),
- PINGROUP(LVP0, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 21, E, 30, D, 22),
- PINGROUP(LVP1, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 22, G, 8, D, 16),
- PINGROUP(LVS, DISPLAYA, DISPLAYB, XIO, RSVD, C, 26, E, 24, D, 22),
- PINGROUP(OWC, OWR, RSVD, RSVD, RSVD, A, 31, B, 8, E, 30),
- PINGROUP(PMC, PWR_ON, PWR_INTR, RSVD, RSVD, A, 23, G, 18, N, -1),
- PINGROUP(PTA, I2C2, HDMI, GMI, RSVD, A, 24, G, 22, B, 4),
- PINGROUP(RM, I2C, RSVD, RSVD, RSVD, A, 25, A, 14, B, 0),
- PINGROUP(SDB, UARTA, PWM, SDIO3, SPI2, D, 15, D, 10, N, -1),
- PINGROUP(SDC, PWM, TWC, SDIO3, SPI3, B, 1, D, 12, D, 28),
- PINGROUP(SDD, UARTA, PWM, SDIO3, SPI3, B, 2, D, 14, D, 30),
- PINGROUP(SDIO1, SDIO1, RSVD, UARTE, UARTA, A, 30, A, 30, E, 18),
- PINGROUP(SLXA, PCIE, SPI4, SDIO3, SPI2, B, 3, B, 6, B, 22),
- PINGROUP(SLXC, SPDIF, SPI4, SDIO3, SPI2, B, 5, B, 10, B, 26),
- PINGROUP(SLXD, SPDIF, SPI4, SDIO3, SPI2, B, 6, B, 12, B, 28),
- PINGROUP(SLXK, PCIE, SPI4, SDIO3, SPI2, B, 7, B, 14, B, 30),
- PINGROUP(SPDI, SPDIF, RSVD, I2C, SDIO2, B, 8, D, 8, B, 16),
- PINGROUP(SPDO, SPDIF, RSVD, I2C, SDIO2, B, 9, D, 6, B, 18),
- PINGROUP(SPIA, SPI1, SPI2, SPI3, GMI, B, 10, D, 30, C, 4),
- PINGROUP(SPIB, SPI1, SPI2, SPI3, GMI, B, 11, D, 28, C, 6),
- PINGROUP(SPIC, SPI1, SPI2, SPI3, GMI, B, 12, D, 26, C, 8),
- PINGROUP(SPID, SPI2, SPI1, SPI2_ALT, GMI, B, 13, D, 24, C, 10),
- PINGROUP(SPIE, SPI2, SPI1, SPI2_ALT, GMI, B, 14, D, 22, C, 12),
- PINGROUP(SPIF, SPI3, SPI1, SPI2, RSVD, B, 15, D, 20, C, 14),
- PINGROUP(SPIG, SPI3, SPI2, SPI2_ALT, I2C, B, 16, D, 18, C, 16),
- PINGROUP(SPIH, SPI3, SPI2, SPI2_ALT, I2C, B, 17, D, 16, C, 18),
- PINGROUP(UAA, SPI3, MIPI_HS, UARTA, ULPI, B, 18, A, 0, D, 0),
- PINGROUP(UAB, SPI2, MIPI_HS, UARTA, ULPI, B, 19, A, 2, D, 2),
- PINGROUP(UAC, OWR, RSVD, RSVD, RSVD, B, 20, A, 4, D, 4),
- PINGROUP(UAD, IRDA, SPDIF, UARTA, SPI4, B, 21, A, 6, D, 6),
- PINGROUP(UCA, UARTC, RSVD, GMI, RSVD, B, 22, B, 16, D, 8),
- PINGROUP(UCB, UARTC, PWM, GMI, RSVD, B, 23, B, 18, D, 10),
- PINGROUP(UDA, SPI1, RSVD, UARTD, ULPI, D, 13, A, 8, E, 16),
- /* these pin groups only have pullup and pull down control */
- PINGROUP(CK32, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 14),
- PINGROUP(DDRC, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, D, 26),
- PINGROUP(PMCA, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 4),
- PINGROUP(PMCB, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 6),
- PINGROUP(PMCC, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 8),
- PINGROUP(PMCD, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 10),
- PINGROUP(PMCE, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 12),
- PINGROUP(XM2C, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, C, 30),
- PINGROUP(XM2D, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, C, 28),
-};
+static const struct tegra_pingroup_desc *const pingroups = tegra_soc_pingroups;
+static const struct tegra_drive_pingroup_desc *const drive_pingroups = tegra_soc_drive_pingroups;
static char *tegra_mux_names[TEGRA_MAX_MUX] = {
[TEGRA_MUX_AHB_CLK] = "AHB_CLK",
@@ -256,48 +96,7 @@ static char *tegra_mux_names[TEGRA_MAX_MUX] = {
[TEGRA_MUX_VI] = "VI",
[TEGRA_MUX_VI_SENSOR_CLK] = "VI_SENSOR_CLK",
[TEGRA_MUX_XIO] = "XIO",
-};
-
-struct tegra_drive_pingroup_desc {
- const char *name;
- s16 reg;
-};
-
-#define DRIVE_PINGROUP(pg_name, r) \
- [TEGRA_DRIVE_PINGROUP_ ## pg_name] = { \
- .name = #pg_name, \
- .reg = r \
- }
-
-static const struct tegra_drive_pingroup_desc drive_pingroups[TEGRA_MAX_PINGROUP] = {
- DRIVE_PINGROUP(AO1, 0x868),
- DRIVE_PINGROUP(AO2, 0x86c),
- DRIVE_PINGROUP(AT1, 0x870),
- DRIVE_PINGROUP(AT2, 0x874),
- DRIVE_PINGROUP(CDEV1, 0x878),
- DRIVE_PINGROUP(CDEV2, 0x87c),
- DRIVE_PINGROUP(CSUS, 0x880),
- DRIVE_PINGROUP(DAP1, 0x884),
- DRIVE_PINGROUP(DAP2, 0x888),
- DRIVE_PINGROUP(DAP3, 0x88c),
- DRIVE_PINGROUP(DAP4, 0x890),
- DRIVE_PINGROUP(DBG, 0x894),
- DRIVE_PINGROUP(LCD1, 0x898),
- DRIVE_PINGROUP(LCD2, 0x89c),
- DRIVE_PINGROUP(SDMMC2, 0x8a0),
- DRIVE_PINGROUP(SDMMC3, 0x8a4),
- DRIVE_PINGROUP(SPI, 0x8a8),
- DRIVE_PINGROUP(UAA, 0x8ac),
- DRIVE_PINGROUP(UAB, 0x8b0),
- DRIVE_PINGROUP(UART2, 0x8b4),
- DRIVE_PINGROUP(UART3, 0x8b8),
- DRIVE_PINGROUP(VI1, 0x8bc),
- DRIVE_PINGROUP(VI2, 0x8c0),
- DRIVE_PINGROUP(XM2A, 0x8c4),
- DRIVE_PINGROUP(XM2C, 0x8c8),
- DRIVE_PINGROUP(XM2D, 0x8cc),
- DRIVE_PINGROUP(XM2CLK, 0x8d0),
- DRIVE_PINGROUP(MEMCOMP, 0x8d4),
+ [TEGRA_MUX_SAFE] = "<safe>",
};
static const char *tegra_drive_names[TEGRA_MAX_DRIVE] = {
@@ -381,22 +180,27 @@ static inline void pg_writel(unsigned long value, unsigned long offset)
writel(value, IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
}
-int tegra_pinmux_set_func(enum tegra_pingroup pg, enum tegra_mux_func func)
+static int tegra_pinmux_set_func(const struct tegra_pingroup_config *config)
{
int mux = -1;
int i;
unsigned long reg;
unsigned long flags;
+ enum tegra_pingroup pg = config->pingroup;
+ enum tegra_mux_func func = config->func;
if (pg < 0 || pg >= TEGRA_MAX_PINGROUP)
return -ERANGE;
- if (pingroups[pg].mux_reg == REG_N)
+ if (pingroups[pg].mux_reg < 0)
return -EINVAL;
if (func < 0)
return -ERANGE;
+ if (func == TEGRA_MUX_SAFE)
+ func = pingroups[pg].func_safe;
+
if (func & TEGRA_MUX_RSVD) {
mux = func & 0x3;
} else {
@@ -413,10 +217,10 @@ int tegra_pinmux_set_func(enum tegra_pingroup pg, enum tegra_mux_func func)
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(TEGRA_PP_MUX_CTL(pingroups[pg].mux_reg));
+ reg = pg_readl(pingroups[pg].mux_reg);
reg &= ~(0x3 << pingroups[pg].mux_bit);
reg |= mux << pingroups[pg].mux_bit;
- pg_writel(reg, TEGRA_PP_MUX_CTL(pingroups[pg].mux_reg));
+ pg_writel(reg, pingroups[pg].mux_reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -432,16 +236,16 @@ int tegra_pinmux_set_tristate(enum tegra_pingroup pg,
if (pg < 0 || pg >= TEGRA_MAX_PINGROUP)
return -ERANGE;
- if (pingroups[pg].tri_reg == REG_N)
+ if (pingroups[pg].tri_reg < 0)
return -EINVAL;
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(TEGRA_TRI_STATE(pingroups[pg].tri_reg));
+ reg = pg_readl(pingroups[pg].tri_reg);
reg &= ~(0x1 << pingroups[pg].tri_bit);
if (tristate)
reg |= 1 << pingroups[pg].tri_bit;
- pg_writel(reg, TEGRA_TRI_STATE(pingroups[pg].tri_reg));
+ pg_writel(reg, pingroups[pg].tri_reg);
spin_unlock_irqrestore(&mux_lock, flags);
@@ -457,7 +261,7 @@ int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
if (pg < 0 || pg >= TEGRA_MAX_PINGROUP)
return -ERANGE;
- if (pingroups[pg].pupd_reg == REG_N)
+ if (pingroups[pg].pupd_reg < 0)
return -EINVAL;
if (pupd != TEGRA_PUPD_NORMAL &&
@@ -468,38 +272,39 @@ int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
spin_lock_irqsave(&mux_lock, flags);
- reg = pg_readl(TEGRA_PP_PU_PD(pingroups[pg].pupd_reg));
+ reg = pg_readl(pingroups[pg].pupd_reg);
reg &= ~(0x3 << pingroups[pg].pupd_bit);
reg |= pupd << pingroups[pg].pupd_bit;
- pg_writel(reg, TEGRA_PP_PU_PD(pingroups[pg].pupd_reg));
+ pg_writel(reg, pingroups[pg].pupd_reg);
spin_unlock_irqrestore(&mux_lock, flags);
return 0;
}
-void tegra_pinmux_config_pingroup(enum tegra_pingroup pingroup,
- enum tegra_mux_func func,
- enum tegra_pullupdown pupd,
- enum tegra_tristate tristate)
+static void tegra_pinmux_config_pingroup(const struct tegra_pingroup_config *config)
{
+ enum tegra_pingroup pingroup = config->pingroup;
+ enum tegra_mux_func func = config->func;
+ enum tegra_pullupdown pupd = config->pupd;
+ enum tegra_tristate tristate = config->tristate;
int err;
- if (pingroups[pingroup].mux_reg != REG_N) {
- err = tegra_pinmux_set_func(pingroup, func);
+ if (pingroups[pingroup].mux_reg >= 0) {
+ err = tegra_pinmux_set_func(config);
if (err < 0)
pr_err("pinmux: can't set pingroup %s func to %s: %d\n",
pingroup_name(pingroup), func_name(func), err);
}
- if (pingroups[pingroup].pupd_reg != REG_N) {
+ if (pingroups[pingroup].pupd_reg >= 0) {
err = tegra_pinmux_set_pullupdown(pingroup, pupd);
if (err < 0)
pr_err("pinmux: can't set pingroup %s pullupdown to %s: %d\n",
pingroup_name(pingroup), pupd_name(pupd), err);
}
- if (pingroups[pingroup].tri_reg != REG_N) {
+ if (pingroups[pingroup].tri_reg >= 0) {
err = tegra_pinmux_set_tristate(pingroup, tristate);
if (err < 0)
pr_err("pinmux: can't set pingroup %s tristate to %s: %d\n",
@@ -507,17 +312,12 @@ void tegra_pinmux_config_pingroup(enum tegra_pingroup pingroup,
}
}
-
-
-void tegra_pinmux_config_table(struct tegra_pingroup_config *config, int len)
+void tegra_pinmux_config_table(const struct tegra_pingroup_config *config, int len)
{
int i;
for (i = 0; i < len; i++)
- tegra_pinmux_config_pingroup(config[i].pingroup,
- config[i].func,
- config[i].pupd,
- config[i].tristate);
+ tegra_pinmux_config_pingroup(&config[i]);
}
static const char *drive_pinmux_name(enum tegra_drive_pingroup pg)
@@ -784,6 +584,86 @@ void tegra_drive_pinmux_config_table(struct tegra_drive_pingroup_config *config,
config[i].slew_falling);
}
+void tegra_pinmux_set_safe_pinmux_table(const struct tegra_pingroup_config *config,
+ int len)
+{
+ int i;
+ struct tegra_pingroup_config c;
+
+ for (i = 0; i < len; i++) {
+ int err;
+ c = config[i];
+ if (c.pingroup < 0 || c.pingroup >= TEGRA_MAX_PINGROUP) {
+ WARN_ON(1);
+ continue;
+ }
+ c.func = pingroups[c.pingroup].func_safe;
+ err = tegra_pinmux_set_func(&c);
+ if (err < 0)
+ pr_err("%s: tegra_pinmux_set_func returned %d setting "
+ "%s to %s\n", __func__, err,
+ pingroup_name(c.pingroup), func_name(c.func));
+ }
+}
+
+void tegra_pinmux_config_pinmux_table(const struct tegra_pingroup_config *config,
+ int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ int err;
+ if (config[i].pingroup < 0 ||
+ config[i].pingroup >= TEGRA_MAX_PINGROUP) {
+ WARN_ON(1);
+ continue;
+ }
+ err = tegra_pinmux_set_func(&config[i]);
+ if (err < 0)
+ pr_err("%s: tegra_pinmux_set_func returned %d setting "
+ "%s to %s\n", __func__, err,
+ pingroup_name(config[i].pingroup),
+ func_name(config[i].func));
+ }
+}
+
+void tegra_pinmux_config_tristate_table(const struct tegra_pingroup_config *config,
+ int len, enum tegra_tristate tristate)
+{
+ int i;
+ int err;
+ enum tegra_pingroup pingroup;
+
+ for (i = 0; i < len; i++) {
+ pingroup = config[i].pingroup;
+ if (pingroups[pingroup].tri_reg >= 0) {
+ err = tegra_pinmux_set_tristate(pingroup, tristate);
+ if (err < 0)
+ pr_err("pinmux: can't set pingroup %s tristate"
+ " to %s: %d\n", pingroup_name(pingroup),
+ tri_name(tristate), err);
+ }
+ }
+}
+
+void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *config,
+ int len, enum tegra_pullupdown pupd)
+{
+ int i;
+ int err;
+ enum tegra_pingroup pingroup;
+
+ for (i = 0; i < len; i++) {
+ pingroup = config[i].pingroup;
+ if (pingroups[pingroup].pupd_reg >= 0) {
+ err = tegra_pinmux_set_pullupdown(pingroup, pupd);
+ if (err < 0)
+ pr_err("pinmux: can't set pingroup %s pullupdown"
+ " to %s: %d\n", pingroup_name(pingroup),
+ pupd_name(pupd), err);
+ }
+ }
+}
#ifdef CONFIG_DEBUG_FS
@@ -812,11 +692,11 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
len = strlen(pingroups[i].name);
dbg_pad_field(s, 5 - len);
- if (pingroups[i].mux_reg == REG_N) {
+ if (pingroups[i].mux_reg < 0) {
seq_printf(s, "TEGRA_MUX_NONE");
len = strlen("NONE");
} else {
- mux = (pg_readl(TEGRA_PP_MUX_CTL(pingroups[i].mux_reg)) >>
+ mux = (pg_readl(pingroups[i].mux_reg) >>
pingroups[i].mux_bit) & 0x3;
if (pingroups[i].funcs[mux] == TEGRA_MUX_RSVD) {
seq_printf(s, "TEGRA_MUX_RSVD%1lu", mux+1);
@@ -829,21 +709,21 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
}
dbg_pad_field(s, 13-len);
- if (pingroups[i].mux_reg == REG_N) {
+ if (pingroups[i].pupd_reg < 0) {
seq_printf(s, "TEGRA_PUPD_NORMAL");
len = strlen("NORMAL");
} else {
- pupd = (pg_readl(TEGRA_PP_PU_PD(pingroups[i].pupd_reg)) >>
+ pupd = (pg_readl(pingroups[i].pupd_reg) >>
pingroups[i].pupd_bit) & 0x3;
seq_printf(s, "TEGRA_PUPD_%s", pupd_name(pupd));
len = strlen(pupd_name(pupd));
}
dbg_pad_field(s, 9 - len);
- if (pingroups[i].tri_reg == REG_N) {
+ if (pingroups[i].tri_reg < 0) {
seq_printf(s, "TEGRA_TRI_NORMAL");
} else {
- tri = (pg_readl(TEGRA_TRI_STATE(pingroups[i].tri_reg)) >>
+ tri = (pg_readl(pingroups[i].tri_reg) >>
pingroups[i].tri_bit) & 0x1;
seq_printf(s, "TEGRA_TRI_%s", tri_name(tri));
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 5/9] [ARM] tegra: gpio: Add suspend and wake support
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (3 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 4/9] [ARM] tegra: pinmux: add safe values, move tegra2, add suspend Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 6/9] [ARM] tegra: Add support for reading fuses Colin Cross
` (4 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
Includes checkpatch fixes and TEGRA_NR_GPIOS changes from
Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/gpio.c | 104 +++++++++++++++++++++++++++---
arch/arm/mach-tegra/include/mach/gpio.h | 4 +-
2 files changed, 95 insertions(+), 13 deletions(-)
diff --git a/arch/arm/mach-tegra/gpio.c b/arch/arm/mach-tegra/gpio.c
index fe78fba..0775265 100644
--- a/arch/arm/mach-tegra/gpio.c
+++ b/arch/arm/mach-tegra/gpio.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/irq.h>
+#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/gpio.h>
@@ -60,6 +61,13 @@ struct tegra_gpio_bank {
int bank;
int irq;
spinlock_t lvl_lock[4];
+#ifdef CONFIG_PM
+ u32 cnf[4];
+ u32 out[4];
+ u32 oe[4];
+ u32 int_enb[4];
+ u32 int_lvl[4];
+#endif
};
@@ -131,7 +139,7 @@ static struct gpio_chip tegra_gpio_chip = {
.direction_output = tegra_gpio_direction_output,
.set = tegra_gpio_set,
.base = 0,
- .ngpio = ARCH_NR_GPIOS,
+ .ngpio = TEGRA_NR_GPIOS,
};
static void tegra_gpio_irq_ack(unsigned int irq)
@@ -244,6 +252,76 @@ static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
}
+#ifdef CONFIG_PM
+void tegra_gpio_resume(void)
+{
+ unsigned long flags;
+ int b, p, i;
+
+ local_irq_save(flags);
+
+ for (b = 0; b < ARRAY_SIZE(tegra_gpio_banks); b++) {
+ struct tegra_gpio_bank *bank = &tegra_gpio_banks[b];
+
+ for (p = 0; p < ARRAY_SIZE(bank->oe); p++) {
+ unsigned int gpio = (b<<5) | (p<<3);
+ __raw_writel(bank->cnf[p], GPIO_CNF(gpio));
+ __raw_writel(bank->out[p], GPIO_OUT(gpio));
+ __raw_writel(bank->oe[p], GPIO_OE(gpio));
+ __raw_writel(bank->int_lvl[p], GPIO_INT_LVL(gpio));
+ __raw_writel(bank->int_enb[p], GPIO_INT_ENB(gpio));
+ }
+ }
+
+ local_irq_restore(flags);
+
+ for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
+ struct irq_desc *desc = irq_to_desc(i);
+ if (!desc || (desc->status & IRQ_WAKEUP))
+ continue;
+ enable_irq(i);
+ }
+}
+
+void tegra_gpio_suspend(void)
+{
+ unsigned long flags;
+ int b, p, i;
+
+ for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
+ struct irq_desc *desc = irq_to_desc(i);
+ if (!desc)
+ continue;
+ if (desc->status & IRQ_WAKEUP) {
+ int gpio = i - INT_GPIO_BASE;
+ pr_debug("gpio %d.%d is wakeup\n", gpio/8, gpio&7);
+ continue;
+ }
+ disable_irq(i);
+ }
+
+ local_irq_save(flags);
+ for (b = 0; b < ARRAY_SIZE(tegra_gpio_banks); b++) {
+ struct tegra_gpio_bank *bank = &tegra_gpio_banks[b];
+
+ for (p = 0; p < ARRAY_SIZE(bank->oe); p++) {
+ unsigned int gpio = (b<<5) | (p<<3);
+ bank->cnf[p] = __raw_readl(GPIO_CNF(gpio));
+ bank->out[p] = __raw_readl(GPIO_OUT(gpio));
+ bank->oe[p] = __raw_readl(GPIO_OE(gpio));
+ bank->int_enb[p] = __raw_readl(GPIO_INT_ENB(gpio));
+ bank->int_lvl[p] = __raw_readl(GPIO_INT_LVL(gpio));
+ }
+ }
+ local_irq_restore(flags);
+}
+
+static int tegra_gpio_wake_enable(unsigned int irq, unsigned int enable)
+{
+ struct tegra_gpio_bank *bank = get_irq_chip_data(irq);
+ return set_irq_wake(bank->irq, enable);
+}
+#endif
static struct irq_chip tegra_gpio_irq_chip = {
.name = "GPIO",
@@ -251,6 +329,9 @@ static struct irq_chip tegra_gpio_irq_chip = {
.mask = tegra_gpio_irq_mask,
.unmask = tegra_gpio_irq_unmask,
.set_type = tegra_gpio_irq_set_type,
+#ifdef CONFIG_PM
+ .set_wake = tegra_gpio_wake_enable,
+#endif
};
@@ -274,7 +355,7 @@ static int __init tegra_gpio_init(void)
gpiochip_add(&tegra_gpio_chip);
- for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + ARCH_NR_GPIOS); i++) {
+ for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
bank = &tegra_gpio_banks[GPIO_BANK(irq_to_gpio(i))];
lockdep_set_class(&irq_desc[i].lock, &gpio_lock_class);
@@ -312,15 +393,16 @@ static int dbg_gpio_show(struct seq_file *s, void *unused)
for (i = 0; i < 7; i++) {
for (j = 0; j < 4; j++) {
int gpio = tegra_gpio_compose(i, j, 0);
- seq_printf(s, "%d:%d %02x %02x %02x %02x %02x %02x %06x\n",
- i, j,
- __raw_readl(GPIO_CNF(gpio)),
- __raw_readl(GPIO_OE(gpio)),
- __raw_readl(GPIO_OUT(gpio)),
- __raw_readl(GPIO_IN(gpio)),
- __raw_readl(GPIO_INT_STA(gpio)),
- __raw_readl(GPIO_INT_ENB(gpio)),
- __raw_readl(GPIO_INT_LVL(gpio)));
+ seq_printf(s,
+ "%d:%d %02x %02x %02x %02x %02x %02x %06x\n",
+ i, j,
+ __raw_readl(GPIO_CNF(gpio)),
+ __raw_readl(GPIO_OE(gpio)),
+ __raw_readl(GPIO_OUT(gpio)),
+ __raw_readl(GPIO_IN(gpio)),
+ __raw_readl(GPIO_INT_STA(gpio)),
+ __raw_readl(GPIO_INT_ENB(gpio)),
+ __raw_readl(GPIO_INT_LVL(gpio)));
}
}
return 0;
diff --git a/arch/arm/mach-tegra/include/mach/gpio.h b/arch/arm/mach-tegra/include/mach/gpio.h
index 540e822..e31f486 100644
--- a/arch/arm/mach-tegra/include/mach/gpio.h
+++ b/arch/arm/mach-tegra/include/mach/gpio.h
@@ -22,7 +22,7 @@
#include <mach/irqs.h>
-#define ARCH_NR_GPIOS INT_GPIO_NR
+#define TEGRA_NR_GPIOS INT_GPIO_NR
#include <asm-generic/gpio.h>
@@ -35,7 +35,7 @@
static inline int gpio_to_irq(unsigned int gpio)
{
- if (gpio < ARCH_NR_GPIOS)
+ if (gpio < TEGRA_NR_GPIOS)
return INT_GPIO_BASE + gpio;
return -EINVAL;
}
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 6/9] [ARM] tegra: Add support for reading fuses
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (4 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 5/9] [ARM] tegra: gpio: Add suspend and wake support Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 7/9] [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups Colin Cross
` (3 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
The Tegra SOC contains fuses to identify the CPU type and
bin, and a unique id. The CPU info is required to determine
the correct voltages for each cpu and core frequency.
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/Makefile | 1 +
arch/arm/mach-tegra/common.c | 2 +
arch/arm/mach-tegra/fuse.c | 84 ++++++++++++++++++++++++++++++++++++++++++
arch/arm/mach-tegra/fuse.h | 24 ++++++++++++
4 files changed, 111 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-tegra/fuse.c
create mode 100644 arch/arm/mach-tegra/fuse.h
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 87d065e..6203475 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -5,6 +5,7 @@ obj-y += clock.o
obj-y += timer.o
obj-y += gpio.o
obj-y += pinmux.o
+obj-y += fuse.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clock.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += pinmux-t2-tables.o
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 039a514..9aedaf7 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -26,6 +26,7 @@
#include "board.h"
#include "clock.h"
+#include "fuse.h"
static __initdata struct tegra_clk_init_table common_clk_init_table[] = {
/* name parent rate enabled */
@@ -55,6 +56,7 @@ void __init tegra_init_cache(void)
void __init tegra_common_init(void)
{
+ tegra_init_fuse();
tegra_init_clock();
tegra_clk_init_from_table(common_clk_init_table);
tegra_init_cache();
diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c
new file mode 100644
index 0000000..1fa26d9
--- /dev/null
+++ b/arch/arm/mach-tegra/fuse.c
@@ -0,0 +1,84 @@
+/*
+ * arch/arm/mach-tegra/fuse.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include <mach/iomap.h>
+
+#include "fuse.h"
+
+#define FUSE_UID_LOW 0x108
+#define FUSE_UID_HIGH 0x10c
+#define FUSE_SKU_INFO 0x110
+#define FUSE_SPARE_BIT 0x200
+
+static inline u32 fuse_readl(unsigned long offset)
+{
+ return readl(IO_TO_VIRT(TEGRA_FUSE_BASE + offset));
+}
+
+static inline void fuse_writel(u32 value, unsigned long offset)
+{
+ writel(value, IO_TO_VIRT(TEGRA_FUSE_BASE + offset));
+}
+
+void tegra_init_fuse(void)
+{
+ u32 reg = readl(IO_TO_VIRT(TEGRA_CLK_RESET_BASE + 0x48));
+ reg |= 1 << 28;
+ writel(reg, IO_TO_VIRT(TEGRA_CLK_RESET_BASE + 0x48));
+
+ pr_info("Tegra SKU: %d CPU Process: %d Core Process: %d\n",
+ tegra_sku_id(), tegra_cpu_process_id(),
+ tegra_core_process_id());
+}
+
+unsigned long long tegra_chip_uid(void)
+{
+ unsigned long long lo, hi;
+
+ lo = fuse_readl(FUSE_UID_LOW);
+ hi = fuse_readl(FUSE_UID_HIGH);
+ return (hi << 32ull) | lo;
+}
+
+int tegra_sku_id(void)
+{
+ int sku_id;
+ u32 reg = fuse_readl(FUSE_SKU_INFO);
+ sku_id = reg & 0xFF;
+ return sku_id;
+}
+
+int tegra_cpu_process_id(void)
+{
+ int cpu_process_id;
+ u32 reg = fuse_readl(FUSE_SPARE_BIT);
+ cpu_process_id = (reg >> 6) & 3;
+ return cpu_process_id;
+}
+
+int tegra_core_process_id(void)
+{
+ int core_process_id;
+ u32 reg = fuse_readl(FUSE_SPARE_BIT);
+ core_process_id = (reg >> 12) & 3;
+ return core_process_id;
+}
diff --git a/arch/arm/mach-tegra/fuse.h b/arch/arm/mach-tegra/fuse.h
new file mode 100644
index 0000000..584b2e2
--- /dev/null
+++ b/arch/arm/mach-tegra/fuse.h
@@ -0,0 +1,24 @@
+/*
+ * arch/arm/mach-tegra/fuse.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+unsigned long long tegra_chip_uid(void);
+int tegra_sku_id(void);
+int tegra_cpu_process_id(void);
+int tegra_core_process_id(void);
+void tegra_init_fuse(void);
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 7/9] [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (5 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 6/9] [ARM] tegra: Add support for reading fuses Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 8/9] [ARM] tegra: common: Update common clock init table Colin Cross
` (2 subsequent siblings)
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
- Add drivers to clock lookup table
- Add new pll_m entries
- Support I2C U16 divider
- Fix rate reporting on 32.768kHz clock
- Call propagate rate only if set_rate succeeds
- Add support for audio_sync clock
- Add 24MHz to PLLA frequency list
- Correct i2s1/2/spdifout mux
- Add suspend support
- Fix enable/disable parent clocks in set_parent
- Add max_rate parameter to all clocks
- DVFS support
- Add virtual cpu clock with dvfs
- Support clk_round_rate
- Fix requesting very high periph frequencies
- Add quirks for PLLU:
PLLU is slightly different from the rest of the PLLs. The
lock enable bit is at bit 22 instead of 18 in the MISC
register, and the post divider field is a single bit with
reversed values from other PLLs.
- Simplify recalculating clock rates
- Fix UART divider flags
- Remove unused clock ops
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/Makefile | 1 +
arch/arm/mach-tegra/clock.c | 267 ++++++++++-
arch/arm/mach-tegra/clock.h | 58 ++-
arch/arm/mach-tegra/include/mach/clk.h | 5 +
arch/arm/mach-tegra/tegra2_clocks.c | 778 +++++++++++++++++++++++++-------
arch/arm/mach-tegra/tegra2_dvfs.c | 86 ++++
arch/arm/mach-tegra/tegra2_dvfs.h | 20 +
7 files changed, 1005 insertions(+), 210 deletions(-)
create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.c
create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.h
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 6203475..3642e58 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -8,6 +8,7 @@ obj-y += pinmux.o
obj-y += fuse.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clock.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_dvfs.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += pinmux-t2-tables.o
obj-$(CONFIG_SMP) += platsmp.o localtimer.o headsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 03ad578..ae19f95 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -24,13 +24,80 @@
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
+#include <linux/regulator/consumer.h>
#include <asm/clkdev.h>
#include "clock.h"
+#include "board.h"
+#include "fuse.h"
static LIST_HEAD(clocks);
static DEFINE_SPINLOCK(clock_lock);
+static DEFINE_MUTEX(dvfs_lock);
+
+static int clk_is_dvfs(struct clk *c)
+{
+ return (c->dvfs != NULL);
+};
+
+static int dvfs_set_rate(struct dvfs *d, unsigned long rate)
+{
+ struct dvfs_table *t;
+
+ if (d->table == NULL)
+ return -ENODEV;
+
+ for (t = d->table; t->rate != 0; t++) {
+ if (rate <= t->rate) {
+ if (!d->reg)
+ return 0;
+
+ return regulator_set_voltage(d->reg,
+ t->millivolts * 1000,
+ d->max_millivolts * 1000);
+ }
+ }
+
+ return -EINVAL;
+}
+
+static void dvfs_init(struct clk *c)
+{
+ int process_id;
+ int i;
+ struct dvfs_table *table;
+
+ process_id = c->dvfs->cpu ? tegra_core_process_id() :
+ tegra_cpu_process_id();
+
+ for (i = 0; i < c->dvfs->process_id_table_length; i++)
+ if (process_id == c->dvfs->process_id_table[i].process_id)
+ c->dvfs->table = c->dvfs->process_id_table[i].table;
+
+ if (c->dvfs->table == NULL) {
+ pr_err("Failed to find dvfs table for clock %s process %d\n",
+ c->name, process_id);
+ return;
+ }
+
+ c->dvfs->max_millivolts = 0;
+ for (table = c->dvfs->table; table->rate != 0; table++)
+ if (c->dvfs->max_millivolts < table->millivolts)
+ c->dvfs->max_millivolts = table->millivolts;
+
+ c->dvfs->reg = regulator_get(NULL, c->dvfs->reg_id);
+
+ if (IS_ERR(c->dvfs->reg)) {
+ pr_err("Failed to get regulator %s for clock %s\n",
+ c->dvfs->reg_id, c->name);
+ c->dvfs->reg = NULL;
+ return;
+ }
+
+ if (c->refcnt > 0)
+ dvfs_set_rate(c->dvfs, c->rate);
+}
struct clk *tegra_get_clock_by_name(const char *name)
{
@@ -48,14 +115,31 @@ struct clk *tegra_get_clock_by_name(const char *name)
return ret;
}
+static void clk_recalculate_rate(struct clk *c)
+{
+ u64 rate;
+
+ if (!c->parent)
+ return;
+
+ rate = c->parent->rate;
+
+ if (c->mul != 0 && c->div != 0) {
+ rate = rate * c->mul;
+ do_div(rate, c->div);
+ }
+
+ if (rate > c->max_rate)
+ pr_warn("clocks: Set clock %s to rate %llu, max is %lu\n",
+ c->name, rate, c->max_rate);
+
+ c->rate = rate;
+}
+
int clk_reparent(struct clk *c, struct clk *parent)
{
pr_debug("%s: %s\n", __func__, c->name);
- if (c->refcnt && c->parent)
- clk_disable_locked(c->parent);
c->parent = parent;
- if (c->refcnt && c->parent)
- clk_enable_locked(c->parent);
list_del(&c->sibling);
list_add_tail(&c->sibling, &parent->children);
return 0;
@@ -67,8 +151,7 @@ static void propagate_rate(struct clk *c)
pr_debug("%s: %s\n", __func__, c->name);
list_for_each_entry(clkp, &c->children, sibling) {
pr_debug(" %s\n", clkp->name);
- if (clkp->ops->recalculate_rate)
- clkp->ops->recalculate_rate(clkp);
+ clk_recalculate_rate(clkp);
propagate_rate(clkp);
}
}
@@ -77,6 +160,8 @@ void clk_init(struct clk *c)
{
unsigned long flags;
+ pr_debug("%s: %s\n", __func__, c->name);
+
spin_lock_irqsave(&clock_lock, flags);
INIT_LIST_HEAD(&c->children);
@@ -85,6 +170,8 @@ void clk_init(struct clk *c)
if (c->ops && c->ops->init)
c->ops->init(c);
+ clk_recalculate_rate(c);
+
list_add(&c->node, &clocks);
if (c->parent)
@@ -122,13 +209,38 @@ int clk_enable_locked(struct clk *c)
return 0;
}
+int clk_enable_cansleep(struct clk *c)
+{
+ int ret;
+ unsigned long flags;
+
+ mutex_lock(&dvfs_lock);
+
+ if (clk_is_dvfs(c) && c->refcnt > 0)
+ dvfs_set_rate(c->dvfs, c->rate);
+
+ spin_lock_irqsave(&clock_lock, flags);
+ ret = clk_enable_locked(c);
+ spin_unlock_irqrestore(&clock_lock, flags);
+
+ mutex_unlock(&dvfs_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(clk_enable_cansleep);
+
int clk_enable(struct clk *c)
{
int ret;
unsigned long flags;
+
+ if (clk_is_dvfs(c))
+ BUG();
+
spin_lock_irqsave(&clock_lock, flags);
ret = clk_enable_locked(c);
spin_unlock_irqrestore(&clock_lock, flags);
+
return ret;
}
EXPORT_SYMBOL(clk_enable);
@@ -152,9 +264,30 @@ void clk_disable_locked(struct clk *c)
c->refcnt--;
}
+void clk_disable_cansleep(struct clk *c)
+{
+ unsigned long flags;
+
+ mutex_lock(&dvfs_lock);
+
+ spin_lock_irqsave(&clock_lock, flags);
+ clk_disable_locked(c);
+ spin_unlock_irqrestore(&clock_lock, flags);
+
+ if (clk_is_dvfs(c) && c->refcnt == 0)
+ dvfs_set_rate(c->dvfs, c->rate);
+
+ mutex_unlock(&dvfs_lock);
+}
+EXPORT_SYMBOL(clk_disable_cansleep);
+
void clk_disable(struct clk *c)
{
unsigned long flags;
+
+ if (clk_is_dvfs(c))
+ BUG();
+
spin_lock_irqsave(&clock_lock, flags);
clk_disable_locked(c);
spin_unlock_irqrestore(&clock_lock, flags);
@@ -175,6 +308,8 @@ int clk_set_parent_locked(struct clk *c, struct clk *parent)
if (ret)
return ret;
+ clk_recalculate_rate(c);
+
propagate_rate(c);
return 0;
@@ -197,22 +332,69 @@ struct clk *clk_get_parent(struct clk *c)
}
EXPORT_SYMBOL(clk_get_parent);
-int clk_set_rate(struct clk *c, unsigned long rate)
+int clk_set_rate_locked(struct clk *c, unsigned long rate)
+{
+ int ret;
+
+ if (rate > c->max_rate)
+ rate = c->max_rate;
+
+ if (!c->ops || !c->ops->set_rate)
+ return -ENOSYS;
+
+ ret = c->ops->set_rate(c, rate);
+
+ if (ret)
+ return ret;
+
+ clk_recalculate_rate(c);
+
+ propagate_rate(c);
+
+ return 0;
+}
+
+int clk_set_rate_cansleep(struct clk *c, unsigned long rate)
{
int ret = 0;
unsigned long flags;
+ pr_debug("%s: %s\n", __func__, c->name);
+
+ mutex_lock(&dvfs_lock);
+
+ if (rate > c->rate)
+ ret = dvfs_set_rate(c->dvfs, rate);
+ if (ret)
+ goto out;
+
spin_lock_irqsave(&clock_lock, flags);
+ ret = clk_set_rate_locked(c, rate);
+ spin_unlock_irqrestore(&clock_lock, flags);
- pr_debug("%s: %s\n", __func__, c->name);
+ if (ret)
+ goto out;
- if (c->ops && c->ops->set_rate)
- ret = c->ops->set_rate(c, rate);
- else
- ret = -ENOSYS;
+ ret = dvfs_set_rate(c->dvfs, rate);
- propagate_rate(c);
+out:
+ mutex_unlock(&dvfs_lock);
+ return ret;
+}
+EXPORT_SYMBOL(clk_set_rate_cansleep);
+
+int clk_set_rate(struct clk *c, unsigned long rate)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ pr_debug("%s: %s\n", __func__, c->name);
+
+ if (clk_is_dvfs(c))
+ BUG();
+ spin_lock_irqsave(&clock_lock, flags);
+ ret = clk_set_rate_locked(c, rate);
spin_unlock_irqrestore(&clock_lock, flags);
return ret;
@@ -235,6 +417,20 @@ unsigned long clk_get_rate(struct clk *c)
}
EXPORT_SYMBOL(clk_get_rate);
+long clk_round_rate(struct clk *c, unsigned long rate)
+{
+ pr_debug("%s: %s\n", __func__, c->name);
+
+ if (!c->ops || !c->ops->round_rate)
+ return -ENOSYS;
+
+ if (rate > c->max_rate)
+ rate = c->max_rate;
+
+ return c->ops->round_rate(c, rate);
+}
+EXPORT_SYMBOL(clk_round_rate);
+
static int tegra_clk_init_one_from_table(struct tegra_clk_init_table *table)
{
struct clk *c;
@@ -308,13 +504,28 @@ void tegra_periph_reset_assert(struct clk *c)
}
EXPORT_SYMBOL(tegra_periph_reset_assert);
-int __init tegra_init_clock(void)
+void __init tegra_init_clock(void)
{
tegra2_init_clocks();
+}
+
+int __init tegra_init_dvfs(void)
+{
+ struct clk *c, *safe;
+
+ mutex_lock(&dvfs_lock);
+
+ list_for_each_entry_safe(c, safe, &clocks, node)
+ if (c->dvfs)
+ dvfs_init(c);
+
+ mutex_unlock(&dvfs_lock);
return 0;
}
+late_initcall(tegra_init_dvfs);
+
#ifdef CONFIG_DEBUG_FS
static struct dentry *clk_debugfs_root;
@@ -324,7 +535,7 @@ static void clock_tree_show_one(struct seq_file *s, struct clk *c, int level)
struct clk *child;
struct clk *safe;
const char *state = "uninit";
- char div[5] = {0};
+ char div[8] = {0};
if (c->state == ON)
state = "on";
@@ -332,16 +543,26 @@ static void clock_tree_show_one(struct seq_file *s, struct clk *c, int level)
state = "off";
if (c->mul != 0 && c->div != 0) {
- BUG_ON(c->mul > 2);
- if (c->mul > c->div)
- snprintf(div, sizeof(div), "x%d", c->mul / c->div);
- else
+ if (c->mul > c->div) {
+ int mul = c->mul / c->div;
+ int mul2 = (c->mul * 10 / c->div) % 10;
+ int mul3 = (c->mul * 10) % c->div;
+ if (mul2 == 0 && mul3 == 0)
+ snprintf(div, sizeof(div), "x%d", mul);
+ else if (mul3 == 0)
+ snprintf(div, sizeof(div), "x%d.%d", mul, mul2);
+ else
+ snprintf(div, sizeof(div), "x%d.%d..", mul, mul2);
+ } else {
snprintf(div, sizeof(div), "%d%s", c->div / c->mul,
(c->div % c->mul) ? ".5" : "");
+ }
}
- seq_printf(s, "%*s%-*s %-6s %-3d %-5s %-10lu\n",
- level * 3 + 1, c->set ? "" : "*",
+ seq_printf(s, "%*s%c%c%-*s %-6s %-3d %-8s %-10lu\n",
+ level * 3 + 1, "",
+ c->rate > c->max_rate ? '!' : ' ',
+ !c->set ? '*' : ' ',
30 - level * 3, c->name,
state, c->refcnt, div, c->rate);
list_for_each_entry_safe(child, safe, &c->children, sibling) {
@@ -353,8 +574,8 @@ static int clock_tree_show(struct seq_file *s, void *data)
{
struct clk *c;
unsigned long flags;
- seq_printf(s, " clock state ref div rate \n");
- seq_printf(s, "-----------------------------------------------------------\n");
+ seq_printf(s, " clock state ref div rate\n");
+ seq_printf(s, "--------------------------------------------------------------\n");
spin_lock_irqsave(&clock_lock, flags);
list_for_each_entry(c, &clocks, node)
if (c->parent == NULL)
diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h
index af7c70e..94fd859 100644
--- a/arch/arm/mach-tegra/clock.h
+++ b/arch/arm/mach-tegra/clock.h
@@ -27,18 +27,43 @@
#define DIV_U71 (1 << 1)
#define DIV_U71_FIXED (1 << 2)
#define DIV_2 (1 << 3)
-#define PLL_FIXED (1 << 4)
-#define PLL_HAS_CPCON (1 << 5)
-#define MUX (1 << 6)
-#define PLLD (1 << 7)
-#define PERIPH_NO_RESET (1 << 8)
-#define PERIPH_NO_ENB (1 << 9)
-#define PERIPH_EMC_ENB (1 << 10)
-#define PERIPH_MANUAL_RESET (1 << 11)
-#define PLL_ALT_MISC_REG (1 << 12)
+#define DIV_U16 (1 << 4)
+#define PLL_FIXED (1 << 5)
+#define PLL_HAS_CPCON (1 << 6)
+#define MUX (1 << 7)
+#define PLLD (1 << 8)
+#define PERIPH_NO_RESET (1 << 9)
+#define PERIPH_NO_ENB (1 << 10)
+#define PERIPH_EMC_ENB (1 << 11)
+#define PERIPH_MANUAL_RESET (1 << 12)
+#define PLL_ALT_MISC_REG (1 << 13)
+#define PLLU (1 << 14)
#define ENABLE_ON_INIT (1 << 28)
struct clk;
+struct regulator;
+
+struct dvfs_table {
+ unsigned long rate;
+ int millivolts;
+};
+
+struct dvfs_process_id_table {
+ int process_id;
+ struct dvfs_table *table;
+};
+
+
+struct dvfs {
+ struct regulator *reg;
+ struct dvfs_table *table;
+ int max_millivolts;
+
+ int process_id_table_length;
+ const char *reg_id;
+ bool cpu;
+ struct dvfs_process_id_table process_id_table[];
+};
struct clk_mux_sel {
struct clk *input;
@@ -58,12 +83,9 @@ struct clk_ops {
void (*init)(struct clk *);
int (*enable)(struct clk *);
void (*disable)(struct clk *);
- void (*recalc)(struct clk *);
int (*set_parent)(struct clk *, struct clk *);
int (*set_rate)(struct clk *, unsigned long);
- unsigned long (*get_rate)(struct clk *);
long (*round_rate)(struct clk *, unsigned long);
- unsigned long (*recalculate_rate)(struct clk *);
};
enum clk_state {
@@ -85,6 +107,7 @@ struct clk {
struct clk *parent;
struct clk_lookup lookup;
unsigned long rate;
+ unsigned long max_rate;
u32 flags;
u32 refcnt;
const char *name;
@@ -103,10 +126,6 @@ struct clk {
unsigned long cf_max;
unsigned long vco_min;
unsigned long vco_max;
- u32 m;
- u32 n;
- u32 p;
- u32 cpcon;
const struct clk_pll_table *pll_table;
/* DIV */
@@ -117,6 +136,12 @@ struct clk {
const struct clk_mux_sel *inputs;
u32 sel;
u32 reg_mask;
+
+ /* Virtual cpu clock */
+ struct clk *main;
+ struct clk *backup;
+
+ struct dvfs *dvfs;
};
@@ -141,6 +166,7 @@ unsigned long clk_measure_input_freq(void);
void clk_disable_locked(struct clk *c);
int clk_enable_locked(struct clk *c);
int clk_set_parent_locked(struct clk *c, struct clk *parent);
+int clk_set_rate_locked(struct clk *c, unsigned long rate);
int clk_reparent(struct clk *c, struct clk *parent);
void tegra_clk_init_from_table(struct tegra_clk_init_table *table);
diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h
index 2896f25..d772395 100644
--- a/arch/arm/mach-tegra/include/mach/clk.h
+++ b/arch/arm/mach-tegra/include/mach/clk.h
@@ -23,4 +23,9 @@
void tegra_periph_reset_deassert(struct clk *c);
void tegra_periph_reset_assert(struct clk *c);
+int clk_enable_cansleep(struct clk *clk);
+void clk_disable_cansleep(struct clk *clk);
+int clk_set_rate_cansleep(struct clk *clk, unsigned long rate);
+int clk_set_parent_cansleep(struct clk *clk, struct clk *parent);
+
#endif
diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c
index 4261632..cf1c9d0 100644
--- a/arch/arm/mach-tegra/tegra2_clocks.c
+++ b/arch/arm/mach-tegra/tegra2_clocks.c
@@ -30,14 +30,21 @@
#include <mach/iomap.h>
#include "clock.h"
+#include "fuse.h"
+#include "tegra2_dvfs.h"
#define RST_DEVICES 0x004
#define RST_DEVICES_SET 0x300
#define RST_DEVICES_CLR 0x304
+#define RST_DEVICES_NUM 3
#define CLK_OUT_ENB 0x010
#define CLK_OUT_ENB_SET 0x320
#define CLK_OUT_ENB_CLR 0x324
+#define CLK_OUT_ENB_NUM 3
+
+#define CLK_MASK_ARM 0x44
+#define MISC_CLK_ENB 0x48
#define OSC_CTRL 0x50
#define OSC_CTRL_OSC_FREQ_MASK (3<<30)
@@ -45,6 +52,7 @@
#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30)
#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30)
#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30)
+#define OSC_CTRL_MASK 0x3f2
#define OSC_FREQ_DET 0x58
#define OSC_FREQ_DET_TRIG (1<<31)
@@ -53,10 +61,17 @@
#define OSC_FREQ_DET_BUSY (1<<31)
#define OSC_FREQ_DET_CNT_MASK 0xFFFF
+#define PERIPH_CLK_SOURCE_I2S1 0x100
+#define PERIPH_CLK_SOURCE_EMC 0x19c
+#define PERIPH_CLK_SOURCE_OSC 0x1fc
+#define PERIPH_CLK_SOURCE_NUM \
+ ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4)
+
#define PERIPH_CLK_SOURCE_MASK (3<<30)
#define PERIPH_CLK_SOURCE_SHIFT 30
#define PERIPH_CLK_SOURCE_ENABLE (1<<28)
-#define PERIPH_CLK_SOURCE_DIV_MASK 0xFF
+#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF
+#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF
#define PERIPH_CLK_SOURCE_DIV_SHIFT 0
#define PLL_BASE 0x0
@@ -79,8 +94,9 @@
#define PLL_OUT_RESET_DISABLE (1<<0)
#define PLL_MISC(c) (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc)
+#define PLL_MISC_LOCK_ENABLE(c) (((c)->flags & PLLU) ? (1<<22) : (1<<18))
+
#define PLL_MISC_DCCON_SHIFT 20
-#define PLL_MISC_LOCK_ENABLE (1<<18)
#define PLL_MISC_CPCON_SHIFT 8
#define PLL_MISC_CPCON_MASK (0xF<<PLL_MISC_CPCON_SHIFT)
#define PLL_MISC_LFCON_SHIFT 4
@@ -88,6 +104,8 @@
#define PLL_MISC_VCOCON_SHIFT 0
#define PLL_MISC_VCOCON_MASK (0xF<<PLL_MISC_VCOCON_SHIFT)
+#define PLLU_BASE_POST_DIV (1<<20)
+
#define PLLD_MISC_CLKENABLE (1<<30)
#define PLLD_MISC_DIV_RST (1<<23)
#define PLLD_MISC_DCCON_SHIFT 12
@@ -143,30 +161,37 @@ unsigned long clk_measure_input_freq(void)
}
}
-static int clk_div71_get_divider(struct clk *c, unsigned long rate)
+static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate)
{
- unsigned long divider_u71;
+ s64 divider_u71 = parent_rate * 2;
+ divider_u71 += rate - 1;
+ do_div(divider_u71, rate);
- divider_u71 = DIV_ROUND_UP(c->rate * 2, rate);
+ if (divider_u71 - 2 < 0)
+ return 0;
- if (divider_u71 - 2 > 255 || divider_u71 - 2 < 0)
+ if (divider_u71 - 2 > 255)
return -EINVAL;
return divider_u71 - 2;
}
-static unsigned long tegra2_clk_recalculate_rate(struct clk *c)
+static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate)
{
- unsigned long rate;
- rate = c->parent->rate;
+ s64 divider_u16;
- if (c->mul != 0 && c->div != 0)
- c->rate = rate * c->mul / c->div;
- else
- c->rate = rate;
- return c->rate;
-}
+ divider_u16 = parent_rate;
+ divider_u16 += rate - 1;
+ do_div(divider_u16, rate);
+ if (divider_u16 - 1 < 0)
+ return 0;
+
+ if (divider_u16 - 1 > 255)
+ return -EINVAL;
+
+ return divider_u16 - 1;
+}
/* clk_m functions */
static unsigned long tegra2_clk_m_autodetect_rate(struct clk *c)
@@ -244,7 +269,6 @@ static void tegra2_super_clk_init(struct clk *c)
}
BUG_ON(sel->input == NULL);
c->parent = sel->input;
- tegra2_clk_recalculate_rate(c);
}
static int tegra2_super_clk_enable(struct clk *c)
@@ -266,6 +290,7 @@ static int tegra2_super_clk_set_parent(struct clk *c, struct clk *p)
u32 val;
const struct clk_mux_sel *sel;
int shift;
+
val = clk_readl(c->reg + SUPER_CLK_MUX);;
BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
@@ -273,11 +298,18 @@ static int tegra2_super_clk_set_parent(struct clk *c, struct clk *p)
SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
for (sel = c->inputs; sel->input != NULL; sel++) {
if (sel->input == p) {
- clk_reparent(c, p);
val &= ~(SUPER_SOURCE_MASK << shift);
val |= sel->value << shift;
+
+ if (c->refcnt)
+ clk_enable_locked(p);
+
clk_writel(val, c->reg);
- c->rate = c->parent->rate;
+
+ if (c->refcnt && c->parent)
+ clk_disable_locked(c->parent);
+
+ clk_reparent(c, p);
return 0;
}
}
@@ -289,7 +321,61 @@ static struct clk_ops tegra_super_ops = {
.enable = tegra2_super_clk_enable,
.disable = tegra2_super_clk_disable,
.set_parent = tegra2_super_clk_set_parent,
- .recalculate_rate = tegra2_clk_recalculate_rate,
+};
+
+/* virtual cpu clock functions */
+/* some clocks can not be stopped (cpu, memory bus) while the SoC is running.
+ To change the frequency of these clocks, the parent pll may need to be
+ reprogrammed, so the clock must be moved off the pll, the pll reprogrammed,
+ and then the clock moved back to the pll. To hide this sequence, a virtual
+ clock handles it.
+ */
+static void tegra2_cpu_clk_init(struct clk *c)
+{
+}
+
+static int tegra2_cpu_clk_enable(struct clk *c)
+{
+ return 0;
+}
+
+static void tegra2_cpu_clk_disable(struct clk *c)
+{
+ pr_debug("%s on clock %s\n", __func__, c->name);
+
+ /* oops - don't disable the CPU clock! */
+ BUG();
+}
+
+static int tegra2_cpu_clk_set_rate(struct clk *c, unsigned long rate)
+{
+ int ret;
+ ret = clk_set_parent_locked(c->parent, c->backup);
+ if (ret) {
+ pr_err("Failed to switch cpu to clock %s\n", c->backup->name);
+ return ret;
+ }
+
+ ret = clk_set_rate_locked(c->main, rate);
+ if (ret) {
+ pr_err("Failed to change cpu pll to %lu\n", rate);
+ return ret;
+ }
+
+ ret = clk_set_parent_locked(c->parent, c->main);
+ if (ret) {
+ pr_err("Failed to switch cpu to clock %s\n", c->main->name);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct clk_ops tegra_cpu_ops = {
+ .init = tegra2_cpu_clk_init,
+ .enable = tegra2_cpu_clk_enable,
+ .disable = tegra2_cpu_clk_disable,
+ .set_rate = tegra2_cpu_clk_set_rate,
};
/* bus clock functions */
@@ -299,7 +385,6 @@ static void tegra2_bus_clk_init(struct clk *c)
c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON;
c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1;
c->mul = 1;
- tegra2_clk_recalculate_rate(c);
}
static int tegra2_bus_clk_enable(struct clk *c)
@@ -340,27 +425,15 @@ static struct clk_ops tegra_bus_ops = {
.enable = tegra2_bus_clk_enable,
.disable = tegra2_bus_clk_disable,
.set_rate = tegra2_bus_clk_set_rate,
- .recalculate_rate = tegra2_clk_recalculate_rate,
};
/* PLL Functions */
-static unsigned long tegra2_pll_clk_recalculate_rate(struct clk *c)
-{
- u64 rate;
- rate = c->parent->rate;
- rate *= c->n;
- do_div(rate, c->m);
- if (c->p == 2)
- rate >>= 1;
- c->rate = rate;
- return c->rate;
-}
-
static int tegra2_pll_clk_wait_for_lock(struct clk *c)
{
ktime_t before;
before = ktime_get();
+
while (!(clk_readl(c->reg + PLL_BASE) & PLL_BASE_LOCK)) {
if (ktime_us_delta(ktime_get(), before) > 5000) {
pr_err("Timed out waiting for lock bit on pll %s",
@@ -380,24 +453,19 @@ static void tegra2_pll_clk_init(struct clk *c)
if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) {
pr_warning("Clock %s has unknown fixed frequency\n", c->name);
- c->n = 1;
- c->m = 0;
- c->p = 1;
+ c->mul = 1;
+ c->div = 1;
} else if (val & PLL_BASE_BYPASS) {
- c->n = 1;
- c->m = 1;
- c->p = 1;
+ c->mul = 1;
+ c->div = 1;
} else {
- c->n = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT;
- c->m = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT;
- c->p = (val & PLL_BASE_DIVP_MASK) ? 2 : 1;
+ c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT;
+ c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT;
+ if (c->flags & PLLU)
+ c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2;
+ else
+ c->div *= (val & PLL_BASE_DIVP_MASK) ? 2 : 1;
}
-
- val = clk_readl(c->reg + PLL_MISC(c));
- if (c->flags & PLL_HAS_CPCON)
- c->cpcon = (val & PLL_MISC_CPCON_MASK) >> PLL_MISC_CPCON_SHIFT;
-
- tegra2_pll_clk_recalculate_rate(c);
}
static int tegra2_pll_clk_enable(struct clk *c)
@@ -411,7 +479,7 @@ static int tegra2_pll_clk_enable(struct clk *c)
clk_writel(val, c->reg + PLL_BASE);
val = clk_readl(c->reg + PLL_MISC(c));
- val |= PLL_MISC_LOCK_ENABLE;
+ val |= PLL_MISC_LOCK_ENABLE(c);
clk_writel(val, c->reg + PLL_MISC(c));
tegra2_pll_clk_wait_for_lock(c);
@@ -441,33 +509,36 @@ static int tegra2_pll_clk_set_rate(struct clk *c, unsigned long rate)
input_rate = c->parent->rate;
for (sel = c->pll_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == input_rate && sel->output_rate == rate) {
- c->n = sel->n;
- c->m = sel->m;
- c->p = sel->p;
- c->cpcon = sel->cpcon;
+ c->mul = sel->n;
+ c->div = sel->m * sel->p;
val = clk_readl(c->reg + PLL_BASE);
if (c->flags & PLL_FIXED)
val |= PLL_BASE_OVERRIDE;
val &= ~(PLL_BASE_DIVP_MASK | PLL_BASE_DIVN_MASK |
PLL_BASE_DIVM_MASK);
- val |= (c->m << PLL_BASE_DIVM_SHIFT) |
- (c->n << PLL_BASE_DIVN_SHIFT);
- BUG_ON(c->p > 2);
- if (c->p == 2)
- val |= 1 << PLL_BASE_DIVP_SHIFT;
+ val |= (sel->m << PLL_BASE_DIVM_SHIFT) |
+ (sel->n << PLL_BASE_DIVN_SHIFT);
+ BUG_ON(sel->p < 1 || sel->p > 2);
+ if (c->flags & PLLU) {
+ if (sel->p == 1)
+ val |= PLLU_BASE_POST_DIV;
+ } else {
+ if (sel->p == 2)
+ val |= 1 << PLL_BASE_DIVP_SHIFT;
+ }
clk_writel(val, c->reg + PLL_BASE);
if (c->flags & PLL_HAS_CPCON) {
- val = c->cpcon << PLL_MISC_CPCON_SHIFT;
- val |= PLL_MISC_LOCK_ENABLE;
+ val = clk_readl(c->reg + PLL_MISC(c));
+ val &= ~PLL_MISC_CPCON_MASK;
+ val |= sel->cpcon << PLL_MISC_CPCON_SHIFT;
clk_writel(val, c->reg + PLL_MISC(c));
}
if (c->state == ON)
tegra2_pll_clk_enable(c);
- c->rate = rate;
return 0;
}
}
@@ -479,7 +550,21 @@ static struct clk_ops tegra_pll_ops = {
.enable = tegra2_pll_clk_enable,
.disable = tegra2_pll_clk_disable,
.set_rate = tegra2_pll_clk_set_rate,
- .recalculate_rate = tegra2_pll_clk_recalculate_rate,
+};
+
+static void tegra2_pllx_clk_init(struct clk *c)
+{
+ tegra2_pll_clk_init(c);
+
+ if (tegra_sku_id() == 7)
+ c->max_rate = 750000000;
+}
+
+static struct clk_ops tegra_pllx_ops = {
+ .init = tegra2_pllx_clk_init,
+ .enable = tegra2_pll_clk_enable,
+ .disable = tegra2_pll_clk_disable,
+ .set_rate = tegra2_pll_clk_set_rate,
};
/* Clock divider ops */
@@ -503,8 +588,6 @@ static void tegra2_pll_div_clk_init(struct clk *c)
c->div = 1;
c->mul = 1;
}
-
- tegra2_clk_recalculate_rate(c);
}
static int tegra2_pll_div_clk_enable(struct clk *c)
@@ -565,7 +648,7 @@ static int tegra2_pll_div_clk_set_rate(struct clk *c, unsigned long rate)
int divider_u71;
pr_debug("%s: %s %lu\n", __func__, c->name, rate);
if (c->flags & DIV_U71) {
- divider_u71 = clk_div71_get_divider(c->parent, rate);
+ divider_u71 = clk_div71_get_divider(c->parent->rate, rate);
if (divider_u71 >= 0) {
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
@@ -580,25 +663,37 @@ static int tegra2_pll_div_clk_set_rate(struct clk *c, unsigned long rate)
clk_writel(val, c->reg);
c->div = divider_u71 + 2;
c->mul = 2;
- tegra2_clk_recalculate_rate(c);
return 0;
}
} else if (c->flags & DIV_2) {
- if (c->parent->rate == rate * 2) {
- c->rate = rate;
+ if (c->parent->rate == rate * 2)
return 0;
- }
}
return -EINVAL;
}
+static long tegra2_pll_div_clk_round_rate(struct clk *c, unsigned long rate)
+{
+ int divider;
+ pr_debug("%s: %s %lu\n", __func__, c->name, rate);
+
+ if (c->flags & DIV_U71) {
+ divider = clk_div71_get_divider(c->parent->rate, rate);
+ if (divider < 0)
+ return divider;
+ return c->parent->rate * 2 / (divider + 2);
+ } else if (c->flags & DIV_2) {
+ return c->parent->rate / 2;
+ }
+ return -EINVAL;
+}
static struct clk_ops tegra_pll_div_ops = {
.init = tegra2_pll_div_clk_init,
.enable = tegra2_pll_div_clk_enable,
.disable = tegra2_pll_div_clk_disable,
.set_rate = tegra2_pll_div_clk_set_rate,
- .recalculate_rate = tegra2_clk_recalculate_rate,
+ .round_rate = tegra2_pll_div_clk_round_rate,
};
/* Periph clk ops */
@@ -621,9 +716,13 @@ static void tegra2_periph_clk_init(struct clk *c)
}
if (c->flags & DIV_U71) {
- u32 divu71 = val & PERIPH_CLK_SOURCE_DIV_MASK;
+ u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK;
c->div = divu71 + 2;
c->mul = 2;
+ } else if (c->flags & DIV_U16) {
+ u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK;
+ c->div = divu16 + 1;
+ c->mul = 1;
} else {
c->div = 1;
c->mul = 1;
@@ -637,7 +736,6 @@ static void tegra2_periph_clk_init(struct clk *c)
if (clk_readl(RST_DEVICES + PERIPH_CLK_TO_ENB_REG(c)) &
PERIPH_CLK_TO_ENB_BIT(c))
c->state = OFF;
- tegra2_clk_recalculate_rate(c);
}
static int tegra2_periph_clk_enable(struct clk *c)
@@ -692,12 +790,19 @@ static int tegra2_periph_clk_set_parent(struct clk *c, struct clk *p)
pr_debug("%s: %s %s\n", __func__, c->name, p->name);
for (sel = c->inputs; sel->input != NULL; sel++) {
if (sel->input == p) {
- clk_reparent(c, p);
val = clk_readl(c->reg);
val &= ~PERIPH_CLK_SOURCE_MASK;
val |= (sel->value) << PERIPH_CLK_SOURCE_SHIFT;
+
+ if (c->refcnt)
+ clk_enable_locked(p);
+
clk_writel(val, c->reg);
- c->rate = c->parent->rate;
+
+ if (c->refcnt && c->parent)
+ clk_disable_locked(c->parent);
+
+ clk_reparent(c, p);
return 0;
}
}
@@ -708,20 +813,55 @@ static int tegra2_periph_clk_set_parent(struct clk *c, struct clk *p)
static int tegra2_periph_clk_set_rate(struct clk *c, unsigned long rate)
{
u32 val;
- int divider_u71;
+ int divider;
pr_debug("%s: %lu\n", __func__, rate);
if (c->flags & DIV_U71) {
- divider_u71 = clk_div71_get_divider(c->parent, rate);
- if (divider_u71 >= 0) {
+ divider = clk_div71_get_divider(c->parent->rate, rate);
+ if (divider >= 0) {
val = clk_readl(c->reg);
- val &= ~PERIPH_CLK_SOURCE_DIV_MASK;
- val |= divider_u71;
+ val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK;
+ val |= divider;
clk_writel(val, c->reg);
- c->div = divider_u71 + 2;
+ c->div = divider + 2;
c->mul = 2;
- tegra2_clk_recalculate_rate(c);
return 0;
}
+ } else if (c->flags & DIV_U16) {
+ divider = clk_div16_get_divider(c->parent->rate, rate);
+ if (divider >= 0) {
+ val = clk_readl(c->reg);
+ val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK;
+ val |= divider;
+ clk_writel(val, c->reg);
+ c->div = divider + 1;
+ c->mul = 1;
+ return 0;
+ }
+ } else if (c->parent->rate <= rate) {
+ c->div = 1;
+ c->mul = 1;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static long tegra2_periph_clk_round_rate(struct clk *c,
+ unsigned long rate)
+{
+ int divider;
+ pr_debug("%s: %s %lu\n", __func__, c->name, rate);
+
+ if (c->flags & DIV_U71) {
+ divider = clk_div71_get_divider(c->parent->rate, rate);
+ if (divider < 0)
+ return divider;
+
+ return c->parent->rate * 2 / (divider + 2);
+ } else if (c->flags & DIV_U16) {
+ divider = clk_div16_get_divider(c->parent->rate, rate);
+ if (divider < 0)
+ return divider;
+ return c->parent->rate / (divider + 1);
}
return -EINVAL;
}
@@ -732,7 +872,7 @@ static struct clk_ops tegra_periph_clk_ops = {
.disable = &tegra2_periph_clk_disable,
.set_parent = &tegra2_periph_clk_set_parent,
.set_rate = &tegra2_periph_clk_set_rate,
- .recalculate_rate = &tegra2_clk_recalculate_rate,
+ .round_rate = &tegra2_periph_clk_round_rate,
};
/* Clock doubler ops */
@@ -744,21 +884,108 @@ static void tegra2_clk_double_init(struct clk *c)
if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) &
PERIPH_CLK_TO_ENB_BIT(c)))
c->state = OFF;
- tegra2_clk_recalculate_rate(c);
};
+static int tegra2_clk_double_set_rate(struct clk *c, unsigned long rate)
+{
+ if (rate != 2 * c->parent->rate)
+ return -EINVAL;
+ c->mul = 2;
+ c->div = 1;
+ return 0;
+}
+
static struct clk_ops tegra_clk_double_ops = {
.init = &tegra2_clk_double_init,
.enable = &tegra2_periph_clk_enable,
.disable = &tegra2_periph_clk_disable,
- .recalculate_rate = &tegra2_clk_recalculate_rate,
+ .set_rate = &tegra2_clk_double_set_rate,
+};
+
+static void tegra2_audio_sync_clk_init(struct clk *c)
+{
+ int source;
+ const struct clk_mux_sel *sel;
+ u32 val = clk_readl(c->reg);
+ c->state = (val & (1<<4)) ? OFF : ON;
+ source = val & 0xf;
+ for (sel = c->inputs; sel->input != NULL; sel++)
+ if (sel->value == source)
+ break;
+ BUG_ON(sel->input == NULL);
+ c->parent = sel->input;
+}
+
+static int tegra2_audio_sync_clk_enable(struct clk *c)
+{
+ clk_writel(0, c->reg);
+ return 0;
+}
+
+static void tegra2_audio_sync_clk_disable(struct clk *c)
+{
+ clk_writel(1, c->reg);
+}
+
+static int tegra2_audio_sync_clk_set_parent(struct clk *c, struct clk *p)
+{
+ u32 val;
+ const struct clk_mux_sel *sel;
+ for (sel = c->inputs; sel->input != NULL; sel++) {
+ if (sel->input == p) {
+ val = clk_readl(c->reg);
+ val &= ~0xf;
+ val |= sel->value;
+
+ if (c->refcnt)
+ clk_enable_locked(p);
+
+ clk_writel(val, c->reg);
+
+ if (c->refcnt && c->parent)
+ clk_disable_locked(c->parent);
+
+ clk_reparent(c, p);
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int tegra2_audio_sync_clk_set_rate(struct clk *c, unsigned long rate)
+{
+ unsigned long parent_rate;
+ if (!c->parent) {
+ pr_err("%s: clock has no parent\n", __func__);
+ return -EINVAL;
+ }
+ parent_rate = c->parent->rate;
+ if (rate != parent_rate) {
+ pr_err("%s: %s/%ld differs from parent %s/%ld\n",
+ __func__,
+ c->name, rate,
+ c->parent->name, parent_rate);
+ return -EINVAL;
+ }
+ c->rate = parent_rate;
+ return 0;
+}
+
+static struct clk_ops tegra_audio_sync_clk_ops = {
+ .init = tegra2_audio_sync_clk_init,
+ .enable = tegra2_audio_sync_clk_enable,
+ .disable = tegra2_audio_sync_clk_disable,
+ .set_rate = tegra2_audio_sync_clk_set_rate,
+ .set_parent = tegra2_audio_sync_clk_set_parent,
};
/* Clock definitions */
static struct clk tegra_clk_32k = {
.name = "clk_32k",
- .rate = 32678,
+ .rate = 32768,
.ops = NULL,
+ .max_rate = 32768,
};
static struct clk_pll_table tegra_pll_s_table[] = {
@@ -782,6 +1009,7 @@ static struct clk tegra_pll_s = {
.vco_min = 12000000,
.vco_max = 26000000,
.pll_table = tegra_pll_s_table,
+ .max_rate = 26000000,
};
static struct clk_mux_sel tegra_clk_m_sel[] = {
@@ -797,6 +1025,7 @@ static struct clk tegra_clk_m = {
.reg = 0x1fc,
.reg_mask = (1<<28),
.reg_shift = 28,
+ .max_rate = 26000000,
};
static struct clk_pll_table tegra_pll_c_table[] = {
@@ -816,6 +1045,7 @@ static struct clk tegra_pll_c = {
.vco_min = 20000000,
.vco_max = 1400000000,
.pll_table = tegra_pll_c_table,
+ .max_rate = 600000000,
};
static struct clk tegra_pll_c_out1 = {
@@ -825,9 +1055,18 @@ static struct clk tegra_pll_c_out1 = {
.parent = &tegra_pll_c,
.reg = 0x84,
.reg_shift = 0,
+ .max_rate = 600000000,
};
static struct clk_pll_table tegra_pll_m_table[] = {
+ { 12000000, 666000000, 666, 12, 1, 8},
+ { 13000000, 666000000, 666, 13, 1, 8},
+ { 19200000, 666000000, 555, 16, 1, 8},
+ { 26000000, 666000000, 666, 26, 1, 8},
+ { 12000000, 600000000, 600, 12, 1, 8},
+ { 13000000, 600000000, 600, 13, 1, 8},
+ { 19200000, 600000000, 375, 12, 1, 6},
+ { 26000000, 600000000, 600, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
@@ -844,6 +1083,7 @@ static struct clk tegra_pll_m = {
.vco_min = 20000000,
.vco_max = 1200000000,
.pll_table = tegra_pll_m_table,
+ .max_rate = 800000000,
};
static struct clk tegra_pll_m_out1 = {
@@ -853,6 +1093,7 @@ static struct clk tegra_pll_m_out1 = {
.parent = &tegra_pll_m,
.reg = 0x94,
.reg_shift = 0,
+ .max_rate = 600000000,
};
static struct clk_pll_table tegra_pll_p_table[] = {
@@ -880,6 +1121,7 @@ static struct clk tegra_pll_p = {
.vco_min = 20000000,
.vco_max = 1400000000,
.pll_table = tegra_pll_p_table,
+ .max_rate = 432000000,
};
static struct clk tegra_pll_p_out1 = {
@@ -889,6 +1131,7 @@ static struct clk tegra_pll_p_out1 = {
.parent = &tegra_pll_p,
.reg = 0xa4,
.reg_shift = 0,
+ .max_rate = 432000000,
};
static struct clk tegra_pll_p_out2 = {
@@ -898,6 +1141,7 @@ static struct clk tegra_pll_p_out2 = {
.parent = &tegra_pll_p,
.reg = 0xa4,
.reg_shift = 16,
+ .max_rate = 432000000,
};
static struct clk tegra_pll_p_out3 = {
@@ -907,6 +1151,7 @@ static struct clk tegra_pll_p_out3 = {
.parent = &tegra_pll_p,
.reg = 0xa8,
.reg_shift = 0,
+ .max_rate = 432000000,
};
static struct clk tegra_pll_p_out4 = {
@@ -916,6 +1161,7 @@ static struct clk tegra_pll_p_out4 = {
.parent = &tegra_pll_p,
.reg = 0xa8,
.reg_shift = 16,
+ .max_rate = 432000000,
};
static struct clk_pll_table tegra_pll_a_table[] = {
@@ -923,6 +1169,7 @@ static struct clk_pll_table tegra_pll_a_table[] = {
{ 28800000, 73728000, 64, 25, 1, 1},
{ 28800000, 11289600, 49, 25, 1, 1},
{ 28800000, 12288000, 64, 25, 1, 1},
+ { 28800000, 24000000, 5, 6, 1, 1},
{ 0, 0, 0, 0, 0, 0 },
};
@@ -939,6 +1186,7 @@ static struct clk tegra_pll_a = {
.vco_min = 20000000,
.vco_max = 1400000000,
.pll_table = tegra_pll_a_table,
+ .max_rate = 56448000,
};
static struct clk tegra_pll_a_out0 = {
@@ -948,6 +1196,7 @@ static struct clk tegra_pll_a_out0 = {
.parent = &tegra_pll_a,
.reg = 0xb4,
.reg_shift = 0,
+ .max_rate = 56448000,
};
static struct clk_pll_table tegra_pll_d_table[] = {
@@ -971,6 +1220,7 @@ static struct clk tegra_pll_d = {
.vco_min = 40000000,
.vco_max = 1000000000,
.pll_table = tegra_pll_d_table,
+ .max_rate = 1000000000,
};
static struct clk tegra_pll_d_out0 = {
@@ -978,19 +1228,20 @@ static struct clk tegra_pll_d_out0 = {
.ops = &tegra_pll_div_ops,
.flags = DIV_2 | PLLD,
.parent = &tegra_pll_d,
+ .max_rate = 500000000,
};
static struct clk_pll_table tegra_pll_u_table[] = {
- { 12000000, 480000000, 960, 12, 1, 0},
- { 13000000, 480000000, 960, 13, 1, 0},
- { 19200000, 480000000, 200, 4, 1, 0},
- { 26000000, 480000000, 960, 26, 1, 0},
+ { 12000000, 480000000, 960, 12, 2, 0},
+ { 13000000, 480000000, 960, 13, 2, 0},
+ { 19200000, 480000000, 200, 4, 2, 0},
+ { 26000000, 480000000, 960, 26, 2, 0},
{ 0, 0, 0, 0, 0, 0 },
};
static struct clk tegra_pll_u = {
.name = "pll_u",
- .flags = 0,
+ .flags = PLLU,
.ops = &tegra_pll_ops,
.reg = 0xc0,
.input_min = 2000000,
@@ -1001,24 +1252,59 @@ static struct clk tegra_pll_u = {
.vco_min = 480000000,
.vco_max = 960000000,
.pll_table = tegra_pll_u_table,
+ .max_rate = 480000000,
};
static struct clk_pll_table tegra_pll_x_table[] = {
+ /* 1 GHz */
{ 12000000, 1000000000, 1000, 12, 1, 12},
{ 13000000, 1000000000, 1000, 13, 1, 12},
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 12},
- { 12000000, 750000000, 750, 12, 1, 12},
- { 13000000, 750000000, 750, 13, 1, 12},
- { 19200000, 750000000, 625, 16, 1, 8},
- { 26000000, 750000000, 750, 26, 1, 12},
+
+ /* 912 MHz */
+ { 12000000, 912000000, 912, 12, 1, 12},
+ { 13000000, 912000000, 912, 13, 1, 12},
+ { 19200000, 912000000, 760, 16, 1, 8},
+ { 26000000, 912000000, 912, 26, 1, 12},
+
+ /* 816 MHz */
+ { 12000000, 816000000, 816, 12, 1, 12},
+ { 13000000, 816000000, 816, 13, 1, 12},
+ { 19200000, 816000000, 680, 16, 1, 8},
+ { 26000000, 816000000, 816, 26, 1, 12},
+
+ /* 760 MHz */
+ { 12000000, 760000000, 760, 12, 1, 12},
+ { 13000000, 760000000, 760, 13, 1, 12},
+ { 19200000, 760000000, 950, 24, 1, 8},
+ { 26000000, 760000000, 760, 26, 1, 12},
+
+ /* 608 MHz */
+ { 12000000, 608000000, 760, 12, 1, 12},
+ { 13000000, 608000000, 760, 13, 1, 12},
+ { 19200000, 608000000, 380, 12, 1, 8},
+ { 26000000, 608000000, 760, 26, 1, 12},
+
+ /* 456 MHz */
+ { 12000000, 456000000, 456, 12, 1, 12},
+ { 13000000, 456000000, 456, 13, 1, 12},
+ { 19200000, 456000000, 380, 16, 1, 8},
+ { 26000000, 456000000, 456, 26, 1, 12},
+
+ /* 312 MHz */
+ { 12000000, 312000000, 312, 12, 1, 12},
+ { 13000000, 312000000, 312, 13, 1, 12},
+ { 19200000, 312000000, 260, 16, 1, 8},
+ { 26000000, 312000000, 312, 26, 1, 12},
+
{ 0, 0, 0, 0, 0, 0 },
};
static struct clk tegra_pll_x = {
.name = "pll_x",
.flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG,
- .ops = &tegra_pll_ops,
+ .ops = &tegra_pllx_ops,
.reg = 0xe0,
.input_min = 2000000,
.input_max = 31000000,
@@ -1028,6 +1314,7 @@ static struct clk tegra_pll_x = {
.vco_min = 20000000,
.vco_max = 1200000000,
.pll_table = tegra_pll_x_table,
+ .max_rate = 1000000000,
};
static struct clk tegra_clk_d = {
@@ -1038,19 +1325,77 @@ static struct clk tegra_clk_d = {
.reg = 0x34,
.reg_shift = 12,
.parent = &tegra_clk_m,
+ .max_rate = 52000000,
+};
+
+/* initialized before peripheral clocks */
+static struct clk_mux_sel mux_audio_sync_clk[8+1];
+static const struct audio_sources {
+ const char *name;
+ int value;
+} mux_audio_sync_clk_sources[] = {
+ { .name = "spdif_in", .value = 0 },
+ { .name = "i2s1", .value = 1 },
+ { .name = "i2s2", .value = 2 },
+ { .name = "pll_a_out0", .value = 4 },
+#if 0 /* FIXME: not implemented */
+ { .name = "ac97", .value = 3 },
+ { .name = "ext_audio_clk2", .value = 5 },
+ { .name = "ext_audio_clk1", .value = 6 },
+ { .name = "ext_vimclk", .value = 7 },
+#endif
+ { 0, 0 }
+};
+
+static struct clk tegra_clk_audio = {
+ .name = "audio",
+ .inputs = mux_audio_sync_clk,
+ .reg = 0x38,
+ .max_rate = 24000000,
+ .ops = &tegra_audio_sync_clk_ops
};
-/* FIXME: need tegra_audio
static struct clk tegra_clk_audio_2x = {
- .name = "clk_d",
+ .name = "audio_2x",
.flags = PERIPH_NO_RESET,
+ .max_rate = 48000000,
.ops = &tegra_clk_double_ops,
.clk_num = 89,
.reg = 0x34,
.reg_shift = 8,
- .parent = &tegra_audio,
+ .parent = &tegra_clk_audio,
+};
+
+struct clk_lookup tegra_audio_clk_lookups[] = {
+ { .con_id = "audio", .clk = &tegra_clk_audio },
+ { .con_id = "audio_2x", .clk = &tegra_clk_audio_2x }
+};
+
+/* This is called after peripheral clocks are initialized, as the
+ * audio_sync clock depends on some of the peripheral clocks.
+ */
+
+static void init_audio_sync_clock_mux(void)
+{
+ int i;
+ struct clk_mux_sel *sel = mux_audio_sync_clk;
+ const struct audio_sources *src = mux_audio_sync_clk_sources;
+ struct clk_lookup *lookup;
+
+ for (i = 0; src->name; i++, sel++, src++) {
+ sel->input = tegra_get_clock_by_name(src->name);
+ if (!sel->input)
+ pr_err("%s: could not find clk %s\n", __func__,
+ src->name);
+ sel->value = src->value;
+ }
+
+ lookup = tegra_audio_clk_lookups;
+ for (i = 0; i < ARRAY_SIZE(tegra_audio_clk_lookups); i++, lookup++) {
+ clk_init(lookup->clk);
+ clkdev_add(lookup);
+ }
}
-*/
static struct clk_mux_sel mux_cclk[] = {
{ .input = &tegra_clk_m, .value = 0},
@@ -1077,27 +1422,40 @@ static struct clk_mux_sel mux_sclk[] = {
{ 0, 0},
};
-static struct clk tegra_clk_cpu = {
- .name = "cpu",
+static struct clk tegra_clk_cclk = {
+ .name = "cclk",
.inputs = mux_cclk,
.reg = 0x20,
.ops = &tegra_super_ops,
+ .max_rate = 1000000000,
};
-static struct clk tegra_clk_sys = {
- .name = "sys",
+static struct clk tegra_clk_sclk = {
+ .name = "sclk",
.inputs = mux_sclk,
.reg = 0x28,
.ops = &tegra_super_ops,
+ .max_rate = 600000000,
+};
+
+static struct clk tegra_clk_virtual_cpu = {
+ .name = "cpu",
+ .parent = &tegra_clk_cclk,
+ .main = &tegra_pll_x,
+ .backup = &tegra_clk_m,
+ .ops = &tegra_cpu_ops,
+ .max_rate = 1000000000,
+ .dvfs = &tegra_dvfs_virtual_cpu_dvfs,
};
static struct clk tegra_clk_hclk = {
.name = "hclk",
.flags = DIV_BUS,
- .parent = &tegra_clk_sys,
+ .parent = &tegra_clk_sclk,
.reg = 0x30,
.reg_shift = 4,
.ops = &tegra_bus_ops,
+ .max_rate = 240000000,
};
static struct clk tegra_clk_pclk = {
@@ -1107,6 +1465,7 @@ static struct clk tegra_clk_pclk = {
.reg = 0x30,
.reg_shift = 0,
.ops = &tegra_bus_ops,
+ .max_rate = 108000000,
};
static struct clk_mux_sel mux_pllm_pllc_pllp_plla[] = {
@@ -1133,10 +1492,9 @@ static struct clk_mux_sel mux_pllp_pllc_pllm_clkm[] = {
{ 0, 0},
};
-static struct clk_mux_sel mux_plla_audio_pllp_clkm[] = {
- {.input = &tegra_pll_a, .value = 0},
- /* FIXME: no mux defined for tegra_audio
- {.input = &tegra_audio, .value = 1},*/
+static struct clk_mux_sel mux_pllaout0_audio2x_pllp_clkm[] = {
+ {.input = &tegra_pll_a_out0, .value = 0},
+ {.input = &tegra_clk_audio_2x, .value = 1},
{.input = &tegra_pll_p, .value = 2},
{.input = &tegra_clk_m, .value = 3},
{ 0, 0},
@@ -1153,8 +1511,7 @@ static struct clk_mux_sel mux_pllp_plld_pllc_clkm[] = {
static struct clk_mux_sel mux_pllp_pllc_audio_clkm_clk32[] = {
{.input = &tegra_pll_p, .value = 0},
{.input = &tegra_pll_c, .value = 1},
- /* FIXME: no mux defined for tegra_audio
- {.input = &tegra_audio, .value = 2},*/
+ {.input = &tegra_clk_audio, .value = 2},
{.input = &tegra_clk_m, .value = 3},
{.input = &tegra_clk_32k, .value = 4},
{ 0, 0},
@@ -1187,7 +1544,7 @@ static struct clk_mux_sel mux_clk_32k[] = {
{ 0, 0},
};
-#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _inputs, _flags) \
+#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \
{ \
.name = _name, \
.lookup = { \
@@ -1199,72 +1556,76 @@ static struct clk_mux_sel mux_clk_32k[] = {
.reg = _reg, \
.inputs = _inputs, \
.flags = _flags, \
+ .max_rate = _max, \
}
struct clk tegra_periph_clks[] = {
- PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, mux_clk_32k, PERIPH_NO_RESET),
- PERIPH_CLK("timer", "timer", NULL, 5, 0, mux_clk_m, 0),
- PERIPH_CLK("i2s1", "i2s.0", NULL, 11, 0x100, mux_plla_audio_pllp_clkm, MUX | DIV_U71),
- PERIPH_CLK("i2s2", "i2s.1", NULL, 18, 0x104, mux_plla_audio_pllp_clkm, MUX | DIV_U71),
+ PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET),
+ PERIPH_CLK("timer", "timer", NULL, 5, 0, 26000000, mux_clk_m, 0),
+ PERIPH_CLK("i2s1", "i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71),
+ PERIPH_CLK("i2s2", "i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71),
/* FIXME: spdif has 2 clocks but 1 enable */
- PERIPH_CLK("spdif_out", "spdif_out", NULL, 10, 0x108, mux_plla_audio_pllp_clkm, MUX | DIV_U71),
- PERIPH_CLK("spdif_in", "spdif_in", NULL, 10, 0x10c, mux_pllp_pllc_pllm, MUX | DIV_U71),
- PERIPH_CLK("pwm", "pwm", NULL, 17, 0x110, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71),
- PERIPH_CLK("spi", "spi", NULL, 43, 0x114, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("xio", "xio", NULL, 45, 0x120, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("twc", "twc", NULL, 16, 0x12c, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sbc1", "spi_tegra.0", NULL, 41, 0x134, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sbc2", "spi_tegra.1", NULL, 44, 0x118, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sbc3", "spi_tegra.2", NULL, 46, 0x11c, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sbc4", "spi_tegra.3", NULL, 68, 0x1b4, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("ide", "ide", NULL, 25, 0x144, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("ndflash", "tegra_nand", NULL, 13, 0x160, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("spdif_out", "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71),
+ PERIPH_CLK("spdif_in", "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71),
+ PERIPH_CLK("pwm", "pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71),
+ PERIPH_CLK("spi", "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("xio", "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("twc", "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("sbc1", "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("sbc2", "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("sbc3", "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("sbc4", "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("ide", "ide", NULL, 25, 0x144, 100000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* requires min voltage */
+ PERIPH_CLK("ndflash", "tegra_nand", NULL, 13, 0x160, 164000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */
/* FIXME: vfir shares an enable with uartb */
- PERIPH_CLK("vfir", "vfir", NULL, 7, 0x168, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sdmmc1", "sdhci-tegra.0", NULL, 14, 0x150, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sdmmc2", "sdhci-tegra.1", NULL, 9, 0x154, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sdmmc3", "sdhci-tegra.2", NULL, 69, 0x1bc, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("sdmmc4", "sdhci-tegra.3", NULL, 15, 0x160, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("vde", "vde", NULL, 61, 0x1c8, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("csite", "csite", NULL, 73, 0x1d4, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("vfir", "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("sdmmc1", "sdhci-tegra.0", NULL, 14, 0x150, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */
+ PERIPH_CLK("sdmmc2", "sdhci-tegra.1", NULL, 9, 0x154, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */
+ PERIPH_CLK("sdmmc3", "sdhci-tegra.2", NULL, 69, 0x1bc, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */
+ PERIPH_CLK("sdmmc4", "sdhci-tegra.3", NULL, 15, 0x160, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */
+ PERIPH_CLK("vde", "vde", NULL, 61, 0x1c8, 250000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage and process_id */
+ PERIPH_CLK("csite", "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* max rate ??? */
/* FIXME: what is la? */
- PERIPH_CLK("la", "la", NULL, 76, 0x1f8, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("owr", "owr", NULL, 71, 0x1cc, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("nor", "nor", NULL, 42, 0x1d0, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("mipi", "mipi", NULL, 50, 0x174, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("i2c1", "tegra-i2c.0", NULL, 12, 0x124, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("i2c2", "tegra-i2c.1", NULL, 54, 0x198, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("i2c3", "tegra-i2c.2", NULL, 67, 0x1b8, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("dvc", "tegra-i2c.3", NULL, 47, 0x128, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("i2c1_i2c", "tegra-i2c.0", "i2c", 0, 0, mux_pllp_out3, 0),
- PERIPH_CLK("i2c2_i2c", "tegra-i2c.1", "i2c", 0, 0, mux_pllp_out3, 0),
- PERIPH_CLK("i2c3_i2c", "tegra-i2c.2", "i2c", 0, 0, mux_pllp_out3, 0),
- PERIPH_CLK("dvc_i2c", "tegra-i2c.3", "i2c", 0, 0, mux_pllp_out3, 0),
- PERIPH_CLK("uarta", "uart.0", NULL, 6, 0x178, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("uartb", "uart.1", NULL, 7, 0x17c, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("uartc", "uart.2", NULL, 55, 0x1a0, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("uartd", "uart.3", NULL, 65, 0x1c0, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("uarte", "uart.4", NULL, 66, 0x1c4, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
- PERIPH_CLK("3d", "3d", NULL, 24, 0x158, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET),
- PERIPH_CLK("2d", "2d", NULL, 21, 0x15c, mux_pllm_pllc_pllp_plla, MUX | DIV_U71),
+ PERIPH_CLK("la", "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("owr", "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71),
+ PERIPH_CLK("nor", "nor", NULL, 42, 0x1d0, 92000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* requires min voltage */
+ PERIPH_CLK("mipi", "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */
+ PERIPH_CLK("i2c1", "tegra-i2c.0", NULL, 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16),
+ PERIPH_CLK("i2c2", "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16),
+ PERIPH_CLK("i2c3", "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16),
+ PERIPH_CLK("dvc", "tegra-i2c.3", NULL, 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16),
+ PERIPH_CLK("i2c1_i2c", "tegra-i2c.0", "i2c", 0, 0, 72000000, mux_pllp_out3, 0),
+ PERIPH_CLK("i2c2_i2c", "tegra-i2c.1", "i2c", 0, 0, 72000000, mux_pllp_out3, 0),
+ PERIPH_CLK("i2c3_i2c", "tegra-i2c.2", "i2c", 0, 0, 72000000, mux_pllp_out3, 0),
+ PERIPH_CLK("dvc_i2c", "tegra-i2c.3", "i2c", 0, 0, 72000000, mux_pllp_out3, 0),
+ PERIPH_CLK("uarta", "uart.0", NULL, 6, 0x178, 216000000, mux_pllp_pllc_pllm_clkm, MUX),
+ PERIPH_CLK("uartb", "uart.1", NULL, 7, 0x17c, 216000000, mux_pllp_pllc_pllm_clkm, MUX),
+ PERIPH_CLK("uartc", "uart.2", NULL, 55, 0x1a0, 216000000, mux_pllp_pllc_pllm_clkm, MUX),
+ PERIPH_CLK("uartd", "uart.3", NULL, 65, 0x1c0, 216000000, mux_pllp_pllc_pllm_clkm, MUX),
+ PERIPH_CLK("uarte", "uart.4", NULL, 66, 0x1c4, 216000000, mux_pllp_pllc_pllm_clkm, MUX),
+ PERIPH_CLK("3d", "3d", NULL, 24, 0x158, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET), /* scales with voltage and process_id */
+ PERIPH_CLK("2d", "2d", NULL, 21, 0x15c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */
/* FIXME: vi and vi_sensor share an enable */
- PERIPH_CLK("vi", "vi", NULL, 20, 0x148, mux_pllm_pllc_pllp_plla, MUX | DIV_U71),
- PERIPH_CLK("vi_sensor", "vi_sensor", NULL, 20, 0x1a8, mux_pllm_pllc_pllp_plla, MUX | DIV_U71),
- PERIPH_CLK("epp", "epp", NULL, 19, 0x16c, mux_pllm_pllc_pllp_plla, MUX | DIV_U71),
- PERIPH_CLK("mpe", "mpe", NULL, 60, 0x170, mux_pllm_pllc_pllp_plla, MUX | DIV_U71),
- PERIPH_CLK("host1x", "host1x", NULL, 28, 0x180, mux_pllm_pllc_pllp_plla, MUX | DIV_U71),
+ PERIPH_CLK("vi", "vi", NULL, 20, 0x148, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */
+ PERIPH_CLK("vi_sensor", "vi_sensor", NULL, 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET), /* scales with voltage and process_id */
+ PERIPH_CLK("epp", "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */
+ PERIPH_CLK("mpe", "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */
+ PERIPH_CLK("host1x", "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */
/* FIXME: cve and tvo share an enable */
- PERIPH_CLK("cve", "cve", NULL, 49, 0x140, mux_pllp_plld_pllc_clkm, MUX | DIV_U71),
- PERIPH_CLK("tvo", "tvo", NULL, 49, 0x188, mux_pllp_plld_pllc_clkm, MUX | DIV_U71),
- PERIPH_CLK("hdmi", "hdmi", NULL, 51, 0x18c, mux_pllp_plld_pllc_clkm, MUX | DIV_U71),
- PERIPH_CLK("tvdac", "tvdac", NULL, 53, 0x194, mux_pllp_plld_pllc_clkm, MUX | DIV_U71),
- PERIPH_CLK("disp1", "tegrafb.0", NULL, 27, 0x138, mux_pllp_plld_pllc_clkm, MUX | DIV_U71),
- PERIPH_CLK("disp2", "tegrafb.1", NULL, 26, 0x13c, mux_pllp_plld_pllc_clkm, MUX | DIV_U71),
- PERIPH_CLK("usbd", "fsl-tegra-udc", NULL, 22, 0, mux_clk_m, 0),
- PERIPH_CLK("usb2", "usb.1", NULL, 58, 0, mux_clk_m, 0),
- PERIPH_CLK("usb3", "usb.2", NULL, 59, 0, mux_clk_m, 0),
- PERIPH_CLK("emc", "emc", NULL, 57, 0x19c, mux_pllm_pllc_pllp_clkm, MUX | DIV_U71 | PERIPH_EMC_ENB),
- PERIPH_CLK("dsi", "dsi", NULL, 48, 0, mux_plld, 0),
+ PERIPH_CLK("cve", "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */
+ PERIPH_CLK("tvo", "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */
+ PERIPH_CLK("hdmi", "hdmi", NULL, 51, 0x18c, 148500000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */
+ PERIPH_CLK("tvdac", "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */
+ PERIPH_CLK("disp1", "tegrafb.0", NULL, 27, 0x138, 190000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* scales with voltage and process_id */
+ PERIPH_CLK("disp2", "tegrafb.1", NULL, 26, 0x13c, 190000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* scales with voltage and process_id */
+ PERIPH_CLK("usbd", "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0), /* requires min voltage */
+ PERIPH_CLK("usb2", "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0), /* requires min voltage */
+ PERIPH_CLK("usb3", "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0), /* requires min voltage */
+ PERIPH_CLK("emc", "emc", NULL, 57, 0x19c, 800000000, mux_pllm_pllc_pllp_clkm, MUX | DIV_U71 | PERIPH_EMC_ENB),
+ PERIPH_CLK("dsi", "dsi", NULL, 48, 0, 500000000, mux_plld, 0), /* scales with voltage */
+ PERIPH_CLK("csi", "csi", NULL, 52, 0, 72000000, mux_pllp_out3, 0),
+ PERIPH_CLK("isp", "isp", NULL, 23, 0, 150000000, mux_clk_m, 0), /* same frequency as VI */
+ PERIPH_CLK("csus", "csus", NULL, 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET),
};
#define CLK_DUPLICATE(_name, _dev, _con) \
@@ -1286,6 +1647,9 @@ struct clk_duplicate tegra_clk_duplicates[] = {
CLK_DUPLICATE("uartc", "tegra_uart.2", NULL),
CLK_DUPLICATE("uartd", "tegra_uart.3", NULL),
CLK_DUPLICATE("uarte", "tegra_uart.4", NULL),
+ CLK_DUPLICATE("host1x", "tegrafb.0", "host1x"),
+ CLK_DUPLICATE("host1x", "tegrafb.1", "host1x"),
+ CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
};
#define CLK(dev, con, ck) \
@@ -1315,11 +1679,12 @@ struct clk_lookup tegra_clk_lookups[] = {
CLK(NULL, "pll_d_out0", &tegra_pll_d_out0),
CLK(NULL, "pll_u", &tegra_pll_u),
CLK(NULL, "pll_x", &tegra_pll_x),
- CLK(NULL, "cpu", &tegra_clk_cpu),
- CLK(NULL, "sys", &tegra_clk_sys),
+ CLK(NULL, "cclk", &tegra_clk_cclk),
+ CLK(NULL, "sclk", &tegra_clk_sclk),
CLK(NULL, "hclk", &tegra_clk_hclk),
CLK(NULL, "pclk", &tegra_clk_pclk),
CLK(NULL, "clk_d", &tegra_clk_d),
+ CLK(NULL, "cpu", &tegra_clk_virtual_cpu),
};
void __init tegra2_init_clocks(void)
@@ -1356,4 +1721,75 @@ void __init tegra2_init_clocks(void)
cd->name);
}
}
+
+ init_audio_sync_clock_mux();
+}
+
+#ifdef CONFIG_PM
+static u32 clk_rst_suspend[RST_DEVICES_NUM + CLK_OUT_ENB_NUM +
+ PERIPH_CLK_SOURCE_NUM + 3];
+
+void tegra_clk_suspend(void)
+{
+ unsigned long off, i;
+ u32 *ctx = clk_rst_suspend;
+
+ *ctx++ = clk_readl(OSC_CTRL) & OSC_CTRL_MASK;
+
+ for (off = PERIPH_CLK_SOURCE_I2S1; off <= PERIPH_CLK_SOURCE_OSC;
+ off += 4) {
+ if (off == PERIPH_CLK_SOURCE_EMC)
+ continue;
+ *ctx++ = clk_readl(off);
+ }
+
+ off = RST_DEVICES;
+ for (i = 0; i < RST_DEVICES_NUM; i++, off += 4)
+ *ctx++ = clk_readl(off);
+
+ off = CLK_OUT_ENB;
+ for (i = 0; i < CLK_OUT_ENB_NUM; i++, off += 4)
+ *ctx++ = clk_readl(off);
+
+ *ctx++ = clk_readl(MISC_CLK_ENB);
+ *ctx++ = clk_readl(CLK_MASK_ARM);
+}
+
+void tegra_clk_resume(void)
+{
+ unsigned long off, i;
+ const u32 *ctx = clk_rst_suspend;
+ u32 val;
+
+ val = clk_readl(OSC_CTRL) & ~OSC_CTRL_MASK;
+ val |= *ctx++;
+ clk_writel(val, OSC_CTRL);
+
+ /* enable all clocks before configuring clock sources */
+ clk_writel(0xbffffff9ul, CLK_OUT_ENB);
+ clk_writel(0xfefffff7ul, CLK_OUT_ENB + 4);
+ clk_writel(0x77f01bfful, CLK_OUT_ENB + 8);
+ wmb();
+
+ for (off = PERIPH_CLK_SOURCE_I2S1; off <= PERIPH_CLK_SOURCE_OSC;
+ off += 4) {
+ if (off == PERIPH_CLK_SOURCE_EMC)
+ continue;
+ clk_writel(*ctx++, off);
+ }
+ wmb();
+
+ off = RST_DEVICES;
+ for (i = 0; i < RST_DEVICES_NUM; i++, off += 4)
+ clk_writel(*ctx++, off);
+ wmb();
+
+ off = CLK_OUT_ENB;
+ for (i = 0; i < CLK_OUT_ENB_NUM; i++, off += 4)
+ clk_writel(*ctx++, off);
+ wmb();
+
+ clk_writel(*ctx++, MISC_CLK_ENB);
+ clk_writel(*ctx++, CLK_MASK_ARM);
}
+#endif
diff --git a/arch/arm/mach-tegra/tegra2_dvfs.c b/arch/arm/mach-tegra/tegra2_dvfs.c
new file mode 100644
index 0000000..5529c23
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra2_dvfs.c
@@ -0,0 +1,86 @@
+/*
+ * arch/arm/mach-tegra/tegra2_dvfs.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+
+#include "clock.h"
+#include "tegra2_dvfs.h"
+
+static struct dvfs_table virtual_cpu_process_0[] = {
+ {314000000, 750},
+ {456000000, 825},
+ {608000000, 900},
+ {760000000, 975},
+ {817000000, 1000},
+ {912000000, 1050},
+ {1000000000, 1100},
+ {0, 0},
+};
+
+static struct dvfs_table virtual_cpu_process_1[] = {
+ {314000000, 750},
+ {456000000, 825},
+ {618000000, 900},
+ {770000000, 975},
+ {827000000, 1000},
+ {922000000, 1050},
+ {1000000000, 1100},
+ {0, 0},
+};
+
+static struct dvfs_table virtual_cpu_process_2[] = {
+ {494000000, 750},
+ {675000000, 825},
+ {817000000, 875},
+ {922000000, 925},
+ {1000000000, 975},
+ {0, 0},
+};
+
+static struct dvfs_table virtual_cpu_process_3[] = {
+ {730000000, 750},
+ {760000000, 775},
+ {845000000, 800},
+ {1000000000, 875},
+ {0, 0},
+};
+
+struct dvfs tegra_dvfs_virtual_cpu_dvfs = {
+ .reg_id = "vdd_cpu",
+ .process_id_table = {
+ {
+ .process_id = 0,
+ .table = virtual_cpu_process_0,
+ },
+ {
+ .process_id = 1,
+ .table = virtual_cpu_process_1,
+ },
+ {
+ .process_id = 2,
+ .table = virtual_cpu_process_2,
+ },
+ {
+ .process_id = 3,
+ .table = virtual_cpu_process_3,
+ },
+ },
+ .process_id_table_length = 4,
+ .cpu = 1,
+};
diff --git a/arch/arm/mach-tegra/tegra2_dvfs.h b/arch/arm/mach-tegra/tegra2_dvfs.h
new file mode 100644
index 0000000..f8c1adb
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra2_dvfs.h
@@ -0,0 +1,20 @@
+/*
+ * arch/arm/mach-tegra/tegra2_dvfs.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+extern struct dvfs tegra_dvfs_virtual_cpu_dvfs;
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 8/9] [ARM] tegra: common: Update common clock init table
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (6 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 7/9] [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 0:29 ` [PATCH 9/9] [ARM] tegra: Add cpufreq support Colin Cross
2010-08-25 21:24 ` [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Erik Gilling
9 siblings, 0 replies; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
Renames clocks in the clock init table to match the datasheet names
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/common.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 9aedaf7..445104a 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -36,8 +36,8 @@ static __initdata struct tegra_clk_init_table common_clk_init_table[] = {
{ "pll_p_out2", "pll_p", 48000000, true },
{ "pll_p_out3", "pll_p", 72000000, true },
{ "pll_p_out4", "pll_p", 108000000, true },
- { "sys", "pll_p_out4", 108000000, true },
- { "hclk", "sys", 108000000, true },
+ { "sclk", "pll_p_out4", 108000000, true },
+ { "hclk", "sclk", 108000000, true },
{ "pclk", "hclk", 54000000, true },
{ NULL, NULL, 0, 0},
};
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 9/9] [ARM] tegra: Add cpufreq support
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (7 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 8/9] [ARM] tegra: common: Update common clock init table Colin Cross
@ 2010-07-30 0:29 ` Colin Cross
2010-07-30 13:11 ` Dominik Brodowski
2010-08-25 21:24 ` [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Erik Gilling
9 siblings, 1 reply; 19+ messages in thread
From: Colin Cross @ 2010-07-30 0:29 UTC (permalink / raw)
To: linux-arm-kernel
From: Colin Cross <ccross@android.com>
Implement cpufreq support for the Tegra SOC. DVFS is handled by the
core virtual cpu clock. The frequencies of the two cores are tied
together, the highest frequency requested by either core determines
the actual frequency.
CC: cpufreq at vger.kernel.org
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-tegra/Makefile | 1 +
arch/arm/mach-tegra/cpu-tegra.c | 185 +++++++++++++++++++++++++++++++++++++++
3 files changed, 187 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-tegra/cpu-tegra.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1341628..1ccf0d3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -569,6 +569,7 @@ config ARCH_TEGRA
select HAVE_CLK
select COMMON_CLKDEV
select ARCH_HAS_BARRIERS if CACHE_L2X0
+ select ARCH_HAS_CPUFREQ
help
This enables support for NVIDIA Tegra based systems (Tegra APX,
Tegra 6xx and Tegra 2 series).
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 3642e58..2a37621 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_dvfs.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += pinmux-t2-tables.o
obj-$(CONFIG_SMP) += platsmp.o localtimer.o headsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
+obj-$(CONFIG_CPU_FREQ) += cpu-tegra.o
obj-${CONFIG_MACH_HARMONY} += board-harmony.o
obj-${CONFIG_MACH_HARMONY} += board-harmony-pinmux.o
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
new file mode 100644
index 0000000..fea5719
--- /dev/null
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -0,0 +1,185 @@
+/*
+ * arch/arm/mach-tegra/cpu-tegra.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross@google.com>
+ * Based on arch/arm/plat-omap/cpu-omap.c, (C) 2005 Nokia Corporation
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/cpufreq.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/system.h>
+
+#include <mach/hardware.h>
+#include <mach/clk.h>
+
+/* Frequency table index must be sequential starting at 0 */
+static struct cpufreq_frequency_table freq_table[] = {
+ { 0, 312000 },
+ { 1, 456000 },
+ { 2, 608000 },
+ { 3, 760000 },
+ { 4, 816000 },
+ { 5, 912000 },
+ { 6, 1000000 },
+ { 7, CPUFREQ_TABLE_END },
+};
+
+#define NUM_CPUS 2
+
+static struct clk *cpu_clk;
+
+static unsigned long target_cpu_speed[NUM_CPUS];
+
+int tegra_verify_speed(struct cpufreq_policy *policy)
+{
+ return cpufreq_frequency_table_verify(policy, freq_table);
+}
+
+unsigned int tegra_getspeed(unsigned int cpu)
+{
+ unsigned long rate;
+
+ if (cpu >= NUM_CPUS)
+ return 0;
+
+ rate = clk_get_rate(cpu_clk) / 1000;
+ return rate;
+}
+
+static int tegra_update_cpu_speed(void)
+{
+ int i;
+ unsigned long rate = 0;
+ int ret = 0;
+ struct cpufreq_freqs freqs;
+
+ for_each_online_cpu(i)
+ rate = max(rate, target_cpu_speed[i]);
+
+ freqs.old = tegra_getspeed(0);
+ freqs.new = rate;
+
+ if (freqs.old == freqs.new)
+ return ret;
+
+ for_each_online_cpu(freqs.cpu)
+ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+
+#ifdef CONFIG_CPU_FREQ_DEBUG
+ printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n",
+ freqs.old, freqs.new);
+#endif
+
+ ret = clk_set_rate_cansleep(cpu_clk, freqs.new * 1000);
+ if (ret) {
+ pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n",
+ freqs.new);
+ return ret;
+ }
+
+ for_each_online_cpu(freqs.cpu)
+ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+ return 0;
+}
+
+static int tegra_target(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation)
+{
+ int idx;
+ unsigned int freq;
+
+ cpufreq_frequency_table_target(policy, freq_table, target_freq,
+ relation, &idx);
+
+ freq = freq_table[idx].frequency;
+
+ target_cpu_speed[policy->cpu] = freq;
+
+ return tegra_update_cpu_speed();
+}
+
+static int tegra_cpu_init(struct cpufreq_policy *policy)
+{
+ if (policy->cpu >= NUM_CPUS)
+ return -EINVAL;
+
+ cpu_clk = clk_get_sys(NULL, "cpu");
+ if (IS_ERR(cpu_clk))
+ return PTR_ERR(cpu_clk);
+
+ cpufreq_frequency_table_cpuinfo(policy, freq_table);
+ cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
+ policy->cur = tegra_getspeed(policy->cpu);
+ target_cpu_speed[policy->cpu] = policy->cur;
+
+ /* FIXME: what's the actual transition time? */
+ policy->cpuinfo.transition_latency = 300 * 1000;
+
+ policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
+ cpumask_copy(policy->related_cpus, cpu_possible_mask);
+
+ return 0;
+}
+
+static int tegra_cpu_exit(struct cpufreq_policy *policy)
+{
+ cpufreq_frequency_table_cpuinfo(policy, freq_table);
+ clk_put(cpu_clk);
+ return 0;
+}
+
+static struct freq_attr *tegra_cpufreq_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL,
+};
+
+static struct cpufreq_driver tegra_cpufreq_driver = {
+ .verify = tegra_verify_speed,
+ .target = tegra_target,
+ .get = tegra_getspeed,
+ .init = tegra_cpu_init,
+ .exit = tegra_cpu_exit,
+ .name = "tegra",
+ .attr = tegra_cpufreq_attr,
+};
+
+static int __init tegra_cpufreq_init(void)
+{
+ return cpufreq_register_driver(&tegra_cpufreq_driver);
+}
+
+static void __exit tegra_cpufreq_exit(void)
+{
+ cpufreq_unregister_driver(&tegra_cpufreq_driver);
+}
+
+
+MODULE_AUTHOR("Colin Cross <ccross@android.com>");
+MODULE_DESCRIPTION("cpufreq driver for Nvidia Tegra2");
+MODULE_LICENSE("GPL");
+module_init(tegra_cpufreq_init);
+module_exit(tegra_cpufreq_exit);
--
1.7.1
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PATCH 9/9] [ARM] tegra: Add cpufreq support
2010-07-30 0:29 ` [PATCH 9/9] [ARM] tegra: Add cpufreq support Colin Cross
@ 2010-07-30 13:11 ` Dominik Brodowski
2010-07-30 19:56 ` Colin Cross
0 siblings, 1 reply; 19+ messages in thread
From: Dominik Brodowski @ 2010-07-30 13:11 UTC (permalink / raw)
To: linux-arm-kernel
Hey,
just a few minor comments:
On Thu, Jul 29, 2010 at 05:29:30PM -0700, Colin Cross wrote:
> +int tegra_verify_speed(struct cpufreq_policy *policy)
static int
> +unsigned int tegra_getspeed(unsigned int cpu)
static unsined int
> + for_each_online_cpu(freqs.cpu)
> + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
> +
> +#ifdef CONFIG_CPU_FREQ_DEBUG
> + printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n",
> + freqs.old, freqs.new);
> +#endif
What about using cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, ... ) here?
> +
> + ret = clk_set_rate_cansleep(cpu_clk, freqs.new * 1000);
"can sleep"? For how long?
Best,
Dominik
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 9/9] [ARM] tegra: Add cpufreq support
2010-07-30 13:11 ` Dominik Brodowski
@ 2010-07-30 19:56 ` Colin Cross
2010-07-30 20:20 ` Mark Brown
0 siblings, 1 reply; 19+ messages in thread
From: Colin Cross @ 2010-07-30 19:56 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Jul 30, 2010 at 6:11 AM, Dominik Brodowski
<linux@dominikbrodowski.net> wrote:
> Hey,
>
> just a few minor comments:
>
> On Thu, Jul 29, 2010 at 05:29:30PM -0700, Colin Cross wrote:
>> +int tegra_verify_speed(struct cpufreq_policy *policy)
> static int
Done
>> +unsigned int tegra_getspeed(unsigned int cpu)
> static unsined int
Done
>> + ? ? for_each_online_cpu(freqs.cpu)
>> + ? ? ? ? ? ? cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
>> +
>> +#ifdef CONFIG_CPU_FREQ_DEBUG
>> + ? ? printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n",
>> + ? ? ? ? ? ?freqs.old, freqs.new);
>> +#endif
> What about using cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, ... ) here?
>
>> +
>> + ? ? ret = clk_set_rate_cansleep(cpu_clk, freqs.new * 1000);
> "can sleep"? For how long?
Adjusting the CPU clock may require changing the voltage through the
regulator api, which locks a mutex, and eventually through I2C, which
sleeps on I2C completion.
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 9/9] [ARM] tegra: Add cpufreq support
2010-07-30 19:56 ` Colin Cross
@ 2010-07-30 20:20 ` Mark Brown
2010-07-30 20:33 ` Colin Cross
0 siblings, 1 reply; 19+ messages in thread
From: Mark Brown @ 2010-07-30 20:20 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Jul 30, 2010 at 12:56:33PM -0700, Colin Cross wrote:
> On Fri, Jul 30, 2010 at 6:11 AM, Dominik Brodowski
> >> + ? ? ret = clk_set_rate_cansleep(cpu_clk, freqs.new * 1000);
> > "can sleep"? For how long?
> Adjusting the CPU clock may require changing the voltage through the
> regulator api, which locks a mutex, and eventually through I2C, which
> sleeps on I2C completion.
...although in some systems the I2C cost will be replaced with updating
a GPIO which is very much cheaper.
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 9/9] [ARM] tegra: Add cpufreq support
2010-07-30 20:20 ` Mark Brown
@ 2010-07-30 20:33 ` Colin Cross
2010-07-30 21:14 ` Mark Brown
0 siblings, 1 reply; 19+ messages in thread
From: Colin Cross @ 2010-07-30 20:33 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Jul 30, 2010 at 1:20 PM, Mark Brown
<broonie@opensource.wolfsonmicro.com> wrote:
> On Fri, Jul 30, 2010 at 12:56:33PM -0700, Colin Cross wrote:
>> On Fri, Jul 30, 2010 at 6:11 AM, Dominik Brodowski
>
>> >> + ? ? ret = clk_set_rate_cansleep(cpu_clk, freqs.new * 1000);
>> > "can sleep"? For how long?
>
>> Adjusting the CPU clock may require changing the voltage through the
>> regulator api, which locks a mutex, and eventually through I2C, which
>> sleeps on I2C completion.
>
> ...although in some systems the I2C cost will be replaced with updating
> a GPIO which is very much cheaper.
Yes, but even on a GPIO regulator, the regulator api will lock a mutex
and possibly schedule.
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 9/9] [ARM] tegra: Add cpufreq support
2010-07-30 20:33 ` Colin Cross
@ 2010-07-30 21:14 ` Mark Brown
0 siblings, 0 replies; 19+ messages in thread
From: Mark Brown @ 2010-07-30 21:14 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Jul 30, 2010 at 01:33:08PM -0700, Colin Cross wrote:
> On Fri, Jul 30, 2010 at 1:20 PM, Mark Brown
> > ...although in some systems the I2C cost will be replaced with updating
> > a GPIO which is very much cheaper.
> Yes, but even on a GPIO regulator, the regulator api will lock a mutex
> and possibly schedule.
Yup, the schedule will depend on how long it takes to charge the cap on
the output in the case of the GPIO regulator. The point being that the
delay you'll encounter is wildly variable depending on hardware setup.
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
` (8 preceding siblings ...)
2010-07-30 0:29 ` [PATCH 9/9] [ARM] tegra: Add cpufreq support Colin Cross
@ 2010-08-25 21:24 ` Erik Gilling
2010-09-01 22:14 ` Erik Gilling
2010-09-02 8:48 ` Russell King - ARM Linux
9 siblings, 2 replies; 19+ messages in thread
From: Erik Gilling @ 2010-08-25 21:24 UTC (permalink / raw)
To: linux-arm-kernel
Any comments on the below patches? If not I'm going to push them to
our for-next tree.
On Thu, Jul 29, 2010 at 5:29 PM, Colin Cross <ccross@google.com> wrote:
> From: Colin Cross <ccross@android.com>
>
> This patch set adds support for more of the Tegra 2 core systems. ?After
> review, some of these changes will be merged down with the core support
> that is already in the tegra for-next branch.
>
> Colin Cross (8):
> ?[ARM] tegra: update iomap
> ?[ARM] tegra: Add legacy irq support
> ?[ARM] tegra: pinmux: add safe values, move tegra2, add suspend
> ?[ARM] tegra: gpio: Add suspend and wake support
> ?[ARM] tegra: Add support for reading fuses
> ?[ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups
> ?[ARM] tegra: common: Update common clock init table
> ?[ARM] tegra: Add cpufreq support
>
> Gary King (1):
> ?[ARM] tegra: add suspend and mirror irqs to legacy controller
>
> ?arch/arm/Kconfig ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| ? ?1 +
> ?arch/arm/mach-tegra/Makefile ? ? ? ? ? ? ? ? ?| ? ?6 +-
> ?arch/arm/mach-tegra/clock.c ? ? ? ? ? ? ? ? ? | ?267 ++++++++-
> ?arch/arm/mach-tegra/clock.h ? ? ? ? ? ? ? ? ? | ? 58 ++-
> ?arch/arm/mach-tegra/common.c ? ? ? ? ? ? ? ? ?| ? ?6 +-
> ?arch/arm/mach-tegra/cpu-tegra.c ? ? ? ? ? ? ? | ?185 ++++++
> ?arch/arm/mach-tegra/fuse.c ? ? ? ? ? ? ? ? ? ?| ? 84 +++
> ?arch/arm/mach-tegra/fuse.h ? ? ? ? ? ? ? ? ? ?| ? 24 +
> ?arch/arm/mach-tegra/gpio.c ? ? ? ? ? ? ? ? ? ?| ?104 +++-
> ?arch/arm/mach-tegra/include/mach/clk.h ? ? ? ?| ? ?5 +
> ?arch/arm/mach-tegra/include/mach/gpio.h ? ? ? | ? ?4 +-
> ?arch/arm/mach-tegra/include/mach/io.h ? ? ? ? | ? ?6 +
> ?arch/arm/mach-tegra/include/mach/iomap.h ? ? ?| ? 33 +-
> ?arch/arm/mach-tegra/include/mach/irqs.h ? ? ? | ? ?2 +
> ?arch/arm/mach-tegra/include/mach/legacy_irq.h | ? 31 +
> ?arch/arm/mach-tegra/include/mach/pinmux-t2.h ?| ?174 ++++++
> ?arch/arm/mach-tegra/include/mach/pinmux.h ? ? | ?210 ++-----
> ?arch/arm/mach-tegra/io.c ? ? ? ? ? ? ? ? ? ? ?| ? ?6 +
> ?arch/arm/mach-tegra/irq.c ? ? ? ? ? ? ? ? ? ? | ?137 +++++
> ?arch/arm/mach-tegra/legacy_irq.c ? ? ? ? ? ? ?| ?114 ++++
> ?arch/arm/mach-tegra/pinmux-t2-tables.c ? ? ? ?| ?260 +++++++++
> ?arch/arm/mach-tegra/pinmux.c ? ? ? ? ? ? ? ? ?| ?354 ++++--------
> ?arch/arm/mach-tegra/tegra2_clocks.c ? ? ? ? ? | ?778 +++++++++++++++++++------
> ?arch/arm/mach-tegra/tegra2_dvfs.c ? ? ? ? ? ? | ? 86 +++
> ?arch/arm/mach-tegra/tegra2_dvfs.h ? ? ? ? ? ? | ? 20 +
> ?25 files changed, 2327 insertions(+), 628 deletions(-)
> ?create mode 100644 arch/arm/mach-tegra/cpu-tegra.c
> ?create mode 100644 arch/arm/mach-tegra/fuse.c
> ?create mode 100644 arch/arm/mach-tegra/fuse.h
> ?create mode 100644 arch/arm/mach-tegra/include/mach/legacy_irq.h
> ?create mode 100644 arch/arm/mach-tegra/include/mach/pinmux-t2.h
> ?create mode 100644 arch/arm/mach-tegra/legacy_irq.c
> ?create mode 100644 arch/arm/mach-tegra/pinmux-t2-tables.c
> ?create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.c
> ?create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.h
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-tegra" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at ?http://vger.kernel.org/majordomo-info.html
>
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs
2010-08-25 21:24 ` [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Erik Gilling
@ 2010-09-01 22:14 ` Erik Gilling
2010-09-02 8:48 ` Russell King - ARM Linux
1 sibling, 0 replies; 19+ messages in thread
From: Erik Gilling @ 2010-09-01 22:14 UTC (permalink / raw)
To: linux-arm-kernel
These changes have been pushed to
git://android.kernel.org/kernel/tegra.git for-next
Colin Cross (10):
[ARM] tegra: update iomap
[ARM] tegra: Add legacy irq support
[ARM] tegra: pinmux: add safe values, move tegra2, add suspend
[ARM] tegra: gpio: Add suspend and wake support
[ARM] tegra: Add support for reading fuses
[ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups
[ARM] tegra: common: Update common clock init table
[ARM] tegra: Add cpufreq support
[ARM] tegra: Add tegra_defconfig
[ARM] tegra: Add APB DMA support
Gary King (1):
[ARM] tegra: add suspend and mirror irqs to legacy controller
arch/arm/Kconfig | 1 +
arch/arm/configs/tegra_defconfig | 1095 +++++++++++++++++++++++++
arch/arm/mach-tegra/Kconfig | 7 +
arch/arm/mach-tegra/Makefile | 7 +-
arch/arm/mach-tegra/clock.c | 267 ++++++-
arch/arm/mach-tegra/clock.h | 58 +-
arch/arm/mach-tegra/common.c | 13 +-
arch/arm/mach-tegra/cpu-tegra.c | 185 +++++
arch/arm/mach-tegra/dma.c | 752 +++++++++++++++++
arch/arm/mach-tegra/fuse.c | 84 ++
arch/arm/mach-tegra/fuse.h | 24 +
arch/arm/mach-tegra/gpio.c | 104 +++-
arch/arm/mach-tegra/include/mach/clk.h | 5 +
arch/arm/mach-tegra/include/mach/dma.h | 155 ++++
arch/arm/mach-tegra/include/mach/gpio.h | 4 +-
arch/arm/mach-tegra/include/mach/io.h | 6 +
arch/arm/mach-tegra/include/mach/iomap.h | 33 +-
arch/arm/mach-tegra/include/mach/irqs.h | 2 +
arch/arm/mach-tegra/include/mach/legacy_irq.h | 31 +
arch/arm/mach-tegra/include/mach/pinmux-t2.h | 174 ++++
arch/arm/mach-tegra/include/mach/pinmux.h | 210 ++----
arch/arm/mach-tegra/io.c | 6 +
arch/arm/mach-tegra/irq.c | 137 +++
arch/arm/mach-tegra/legacy_irq.c | 114 +++
arch/arm/mach-tegra/pinmux-t2-tables.c | 260 ++++++
arch/arm/mach-tegra/pinmux.c | 354 +++------
arch/arm/mach-tegra/tegra2_clocks.c | 778 ++++++++++++++----
arch/arm/mach-tegra/tegra2_dvfs.c | 86 ++
arch/arm/mach-tegra/tegra2_dvfs.h | 20 +
29 files changed, 4344 insertions(+), 628 deletions(-)
create mode 100644 arch/arm/configs/tegra_defconfig
create mode 100644 arch/arm/mach-tegra/cpu-tegra.c
create mode 100644 arch/arm/mach-tegra/dma.c
create mode 100644 arch/arm/mach-tegra/fuse.c
create mode 100644 arch/arm/mach-tegra/fuse.h
create mode 100644 arch/arm/mach-tegra/include/mach/dma.h
create mode 100644 arch/arm/mach-tegra/include/mach/legacy_irq.h
create mode 100644 arch/arm/mach-tegra/include/mach/pinmux-t2.h
create mode 100644 arch/arm/mach-tegra/legacy_irq.c
create mode 100644 arch/arm/mach-tegra/pinmux-t2-tables.c
create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.c
create mode 100644 arch/arm/mach-tegra/tegra2_dvfs.h
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs
2010-08-25 21:24 ` [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Erik Gilling
2010-09-01 22:14 ` Erik Gilling
@ 2010-09-02 8:48 ` Russell King - ARM Linux
2010-09-02 10:20 ` Erik Gilling
1 sibling, 1 reply; 19+ messages in thread
From: Russell King - ARM Linux @ 2010-09-02 8:48 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Aug 25, 2010 at 02:24:24PM -0700, Erik Gilling wrote:
> Any comments on the below patches? If not I'm going to push them to
> our for-next tree.
Where are the patches? I don't see them on the mailing list. We don't
review code sitting in git trees - only patches on mailing lists.
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs
2010-09-02 8:48 ` Russell King - ARM Linux
@ 2010-09-02 10:20 ` Erik Gilling
0 siblings, 0 replies; 19+ messages in thread
From: Erik Gilling @ 2010-09-02 10:20 UTC (permalink / raw)
To: linux-arm-kernel
Sorry for the confusion. These patches were posted by Colin Cross on
July 29th (http://www.spinics.net/lists/arm-kernel/msg94637.html) and
pinged again by me on August 25th
(http://www.spinics.net/lists/arm-kernel/msg96657.html).
Cheers,
Erik
On Thu, Sep 2, 2010 at 1:48 AM, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> On Wed, Aug 25, 2010 at 02:24:24PM -0700, Erik Gilling wrote:
>> Any comments on the below patches? ?If not I'm going to push them to
>> our for-next tree.
>
> Where are the patches? ?I don't see them on the mailing list. ?We don't
> review code sitting in git trees - only patches on mailing lists.
>
^ permalink raw reply [flat|nested] 19+ messages in thread
end of thread, other threads:[~2010-09-02 10:20 UTC | newest]
Thread overview: 19+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-07-30 0:29 [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Colin Cross
2010-07-30 0:29 ` [PATCH 1/9] [ARM] tegra: update iomap Colin Cross
2010-07-30 0:29 ` [PATCH 2/9] [ARM] tegra: Add legacy irq support Colin Cross
2010-07-30 0:29 ` [PATCH 3/9] [ARM] tegra: add suspend and mirror irqs to legacy controller Colin Cross
2010-07-30 0:29 ` [PATCH 4/9] [ARM] tegra: pinmux: add safe values, move tegra2, add suspend Colin Cross
2010-07-30 0:29 ` [PATCH 5/9] [ARM] tegra: gpio: Add suspend and wake support Colin Cross
2010-07-30 0:29 ` [PATCH 6/9] [ARM] tegra: Add support for reading fuses Colin Cross
2010-07-30 0:29 ` [PATCH 7/9] [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups Colin Cross
2010-07-30 0:29 ` [PATCH 8/9] [ARM] tegra: common: Update common clock init table Colin Cross
2010-07-30 0:29 ` [PATCH 9/9] [ARM] tegra: Add cpufreq support Colin Cross
2010-07-30 13:11 ` Dominik Brodowski
2010-07-30 19:56 ` Colin Cross
2010-07-30 20:20 ` Mark Brown
2010-07-30 20:33 ` Colin Cross
2010-07-30 21:14 ` Mark Brown
2010-08-25 21:24 ` [PATCH 0/9] [ARM] tegra: Additional core support for Tegra2 SOCs Erik Gilling
2010-09-01 22:14 ` Erik Gilling
2010-09-02 8:48 ` Russell King - ARM Linux
2010-09-02 10:20 ` Erik Gilling
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