* [PATCH v5 1/8] ARM: debug: Rename Hi3716 to HI5XHD2
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 2/8] ARM: hisi: add ARCH_HISI Haojian Zhuang
` (8 subsequent siblings)
9 siblings, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
From: Haifeng Yan <yanhaifeng@gmail.com>
Rename Hisilicon HI3716 to HI5XHD2. And it relies on ARCH_HI5XHD2
instead.
Hi5XHD2 is a SoC with dual Cortex A9 cores.
Signed-off-by: Haifeng Yan <yanhaifeng@gmail.com>
Signed-off-by: Jiancheng Xue <jchxue@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/Kconfig.debug | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 8f90595..d061de0 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -223,6 +223,14 @@ choice
Say Y here if you want kernel low-level debugging support
on HI3716 UART.
+ config DEBUG_HIX5HD2_UART
+ bool "Hisilicon Hix5hd2 Debug UART"
+ depends on ARCH_HIX5HD2
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Hix5hd2 UART.
+
config DEBUG_HIGHBANK_UART
bool "Kernel low-level debugging messages via Highbank UART"
depends on ARCH_HIGHBANK
@@ -1092,7 +1100,7 @@ config DEBUG_UART_PHYS
default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
ARCH_ORION5X
default 0xf7fc9000 if DEBUG_BERLIN_UART
- default 0xf8b00000 if DEBUG_HI3716_UART
+ default 0xf8b00000 if DEBUG_HIX5HD2_UART
default 0xf991e000 if DEBUG_QCOM_UARTDM
default 0xfcb00000 if DEBUG_HI3620_UART
default 0xfe800000 if ARCH_IOP32X
@@ -1144,7 +1152,7 @@ config DEBUG_UART_VIRT
default 0xfe230000 if DEBUG_PICOXCELL_UART
default 0xfe300000 if DEBUG_BCM_KONA_UART
default 0xfe800000 if ARCH_IOP32X
- default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
+ default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
default 0xfeb24000 if DEBUG_RK3X_UART0
default 0xfeb26000 if DEBUG_RK3X_UART1
default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 2/8] ARM: hisi: add ARCH_HISI
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 1/8] ARM: debug: Rename Hi3716 to HI5XHD2 Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 3/8] ARM: hisi: enable hix5hd2 SoC Haojian Zhuang
` (7 subsequent siblings)
9 siblings, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
Since multiple ARCH configuration will be appended into mach-hisi
directory, add ARCH_HISI as common configuration for different ARCH in
mach-hisi.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/Makefile | 2 +-
arch/arm/mach-hisi/Kconfig | 16 ++++++++++++++--
2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 6721fab..2024f5e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -156,7 +156,7 @@ machine-$(CONFIG_ARCH_EP93XX) += ep93xx
machine-$(CONFIG_ARCH_EXYNOS) += exynos
machine-$(CONFIG_ARCH_GEMINI) += gemini
machine-$(CONFIG_ARCH_HIGHBANK) += highbank
-machine-$(CONFIG_ARCH_HI3xxx) += hisi
+machine-$(CONFIG_ARCH_HISI) += hisi
machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
machine-$(CONFIG_ARCH_IOP13XX) += iop13xx
machine-$(CONFIG_ARCH_IOP32X) += iop32x
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig
index feee4db..da16efd 100644
--- a/arch/arm/mach-hisi/Kconfig
+++ b/arch/arm/mach-hisi/Kconfig
@@ -1,8 +1,16 @@
-config ARCH_HI3xxx
- bool "Hisilicon Hi36xx/Hi37xx family" if ARCH_MULTI_V7
+config ARCH_HISI
+ bool "Hisilicon SoC Support"
+ depends on ARCH_MULTIPLATFORM
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
+
+if ARCH_HISI
+
+menu "Hisilicon platform type"
+
+config ARCH_HI3xxx
+ bool "Hisilicon Hi36xx/Hi37xx family" if ARCH_MULTI_V7
select CACHE_L2X0
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
@@ -10,3 +18,7 @@ config ARCH_HI3xxx
select PINCTRL_SINGLE
help
Support for Hisilicon Hi36xx/Hi37xx processor family
+
+endmenu
+
+endif
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 3/8] ARM: hisi: enable hix5hd2 SoC
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 1/8] ARM: debug: Rename Hi3716 to HI5XHD2 Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 2/8] ARM: hisi: add ARCH_HISI Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 4/8] ARM: dts: Add hix5hd2-dkb dts file Haojian Zhuang
` (6 subsequent siblings)
9 siblings, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
From: Haifeng Yan <yanhaifeng@gmail.com>
Enable Hisilicon HiX5HD2 SoC. This HiX5HD2 SoC series support both
one core or dual cores. The core is Cortex A9.
Signed-off-by: Haifeng Yan <yanhaifeng@gmail.com>
Signed-off-by: Jiancheng Xue <jchxue@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
.../bindings/arm/hisilicon/hisilicon.txt | 11 ++++
arch/arm/mach-hisi/Kconfig | 13 ++++-
arch/arm/mach-hisi/Makefile | 2 +-
arch/arm/mach-hisi/core.h | 5 ++
arch/arm/mach-hisi/headsmp.S | 16 ++++++
arch/arm/mach-hisi/hisilicon.c | 12 +++++
arch/arm/mach-hisi/hotplug.c | 58 ++++++++++++++++++++++
arch/arm/mach-hisi/platsmp.c | 50 +++++++++++++++++--
8 files changed, 161 insertions(+), 6 deletions(-)
create mode 100644 arch/arm/mach-hisi/headsmp.S
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
index df0a452..934f000 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+++ b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
@@ -31,6 +31,17 @@ Example:
reboot-offset = <0x4>;
};
+-----------------------------------------------------------------------
+Hisilicon CPU controller
+
+Required properties:
+- compatible : "hisilicon,cpuctrl"
+- reg : Register address and size
+
+The clock registers and power registers of secondary cores are defined
+in CPU controller, especially in HIX5HD2 SoC.
+
+-----------------------------------------------------------------------
PCTRL: Peripheral misc control register
Required Properties:
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig
index da16efd..90fdbb4 100644
--- a/arch/arm/mach-hisi/Kconfig
+++ b/arch/arm/mach-hisi/Kconfig
@@ -10,15 +10,24 @@ if ARCH_HISI
menu "Hisilicon platform type"
config ARCH_HI3xxx
- bool "Hisilicon Hi36xx/Hi37xx family" if ARCH_MULTI_V7
+ bool "Hisilicon Hi36xx family" if ARCH_MULTI_V7
select CACHE_L2X0
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select PINCTRL
select PINCTRL_SINGLE
help
- Support for Hisilicon Hi36xx/Hi37xx processor family
+ Support for Hisilicon Hi36xx SoC family
+config ARCH_HIX5HD2
+ bool "Hisilicon X5HD2 family" if ARCH_MULTI_V7
+ select CACHE_L2X0
+ select HAVE_ARM_SCU if SMP
+ select HAVE_ARM_TWD if SMP
+ select PINCTRL
+ select PINCTRL_SINGLE
+ help
+ Support for Hisilicon HIX5HD2 SoC family
endmenu
endif
diff --git a/arch/arm/mach-hisi/Makefile b/arch/arm/mach-hisi/Makefile
index 2ae1b59..ee2506b 100644
--- a/arch/arm/mach-hisi/Makefile
+++ b/arch/arm/mach-hisi/Makefile
@@ -3,4 +3,4 @@
#
obj-y += hisilicon.o
-obj-$(CONFIG_SMP) += platsmp.o hotplug.o
+obj-$(CONFIG_SMP) += platsmp.o hotplug.o headsmp.o
diff --git a/arch/arm/mach-hisi/core.h b/arch/arm/mach-hisi/core.h
index af23ec2..88b1f48 100644
--- a/arch/arm/mach-hisi/core.h
+++ b/arch/arm/mach-hisi/core.h
@@ -12,4 +12,9 @@ extern void hi3xxx_cpu_die(unsigned int cpu);
extern int hi3xxx_cpu_kill(unsigned int cpu);
extern void hi3xxx_set_cpu(int cpu, bool enable);
+extern void hix5hd2_secondary_startup(void);
+extern struct smp_operations hix5hd2_smp_ops;
+extern void hix5hd2_set_cpu(int cpu, bool enable);
+extern void hix5hd2_cpu_die(unsigned int cpu);
+
#endif
diff --git a/arch/arm/mach-hisi/headsmp.S b/arch/arm/mach-hisi/headsmp.S
new file mode 100644
index 0000000..278889c
--- /dev/null
+++ b/arch/arm/mach-hisi/headsmp.S
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2014 Hisilicon Limited.
+ * Copyright (c) 2014 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+ __CPUINIT
+
+ENTRY(hix5hd2_secondary_startup)
+ bl v7_invalidate_l1
+ b secondary_startup
diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
index 741faf3..2bfbe3f 100644
--- a/arch/arm/mach-hisi/hisilicon.c
+++ b/arch/arm/mach-hisi/hisilicon.c
@@ -88,3 +88,15 @@ DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.smp = smp_ops(hi3xxx_smp_ops),
.restart = hi3xxx_restart,
MACHINE_END
+
+static const char *hix5hd2_compat[] __initconst = {
+ "hisilicon,hix5hd2",
+ NULL,
+};
+
+DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
+ .dt_compat = hix5hd2_compat,
+ .init_late = hi3xxx_init_late,
+ .smp = smp_ops(hix5hd2_smp_ops),
+ .restart = hi3xxx_restart,
+MACHINE_END
diff --git a/arch/arm/mach-hisi/hotplug.c b/arch/arm/mach-hisi/hotplug.c
index abd441b..84e6919 100644
--- a/arch/arm/mach-hisi/hotplug.c
+++ b/arch/arm/mach-hisi/hotplug.c
@@ -57,6 +57,14 @@
#define CPU0_NEON_SRST_REQ_EN (1 << 4)
#define CPU0_SRST_REQ_EN (1 << 0)
+#define HIX5HD2_PERI_CRG20 0x50
+#define CRG20_CPU1_RESET (1 << 17)
+
+#define HIX5HD2_PERI_PMC0 0x1000
+#define PMC0_CPU1_WAIT_MTCOMS_ACK (1 << 8)
+#define PMC0_CPU1_PMC_ENABLE (1 << 7)
+#define PMC0_CPU1_POWERDOWN (1 << 3)
+
enum {
HI3620_CTRL,
ERROR_CTRL,
@@ -157,6 +165,50 @@ void hi3xxx_set_cpu(int cpu, bool enable)
set_cpu_hi3620(cpu, enable);
}
+static bool hix5hd2_hotplug_init(void)
+{
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "hisilicon,cpuctrl");
+ if (np) {
+ ctrl_base = of_iomap(np, 0);
+ return true;
+ }
+ return false;
+}
+
+void hix5hd2_set_cpu(int cpu, bool enable)
+{
+ u32 val = 0;
+
+ if (!ctrl_base)
+ if (!hix5hd2_hotplug_init())
+ BUG();
+
+ if (enable) {
+ /* power on cpu1 */
+ val = readl_relaxed(ctrl_base + HIX5HD2_PERI_PMC0);
+ val &= ~(PMC0_CPU1_WAIT_MTCOMS_ACK | PMC0_CPU1_POWERDOWN);
+ val |= PMC0_CPU1_PMC_ENABLE;
+ writel_relaxed(val, ctrl_base + HIX5HD2_PERI_PMC0);
+ /* unreset */
+ val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20);
+ val &= ~CRG20_CPU1_RESET;
+ writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20);
+ } else {
+ /* power down cpu1 */
+ val = readl_relaxed(ctrl_base + HIX5HD2_PERI_PMC0);
+ val |= PMC0_CPU1_PMC_ENABLE | PMC0_CPU1_POWERDOWN;
+ val &= ~PMC0_CPU1_WAIT_MTCOMS_ACK;
+ writel_relaxed(val, ctrl_base + HIX5HD2_PERI_PMC0);
+
+ /* reset */
+ val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20);
+ val |= CRG20_CPU1_RESET;
+ writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20);
+ }
+}
+
static inline void cpu_enter_lowpower(void)
{
unsigned int v;
@@ -199,4 +251,10 @@ int hi3xxx_cpu_kill(unsigned int cpu)
hi3xxx_set_cpu(cpu, false);
return 1;
}
+
+void hix5hd2_cpu_die(unsigned int cpu)
+{
+ flush_cache_all();
+ hix5hd2_set_cpu(cpu, false);
+}
#endif
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index 471f1ee..ecf7058 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -17,6 +17,8 @@
#include "core.h"
+#define HIX5HD2_BOOT_ADDRESS 0xffff0000
+
static void __iomem *ctrl_base;
void hi3xxx_set_cpu_jump(int cpu, void *jump_addr)
@@ -35,11 +37,9 @@ int hi3xxx_get_cpu_jump(int cpu)
return readl_relaxed(ctrl_base + ((cpu - 1) << 2));
}
-static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus)
+static void __init hisi_enable_scu_a9(void)
{
- struct device_node *np = NULL;
unsigned long base = 0;
- u32 offset = 0;
void __iomem *scu_base = NULL;
if (scu_a9_has_base()) {
@@ -52,6 +52,14 @@ static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus)
scu_enable(scu_base);
iounmap(scu_base);
}
+}
+
+static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus)
+{
+ struct device_node *np = NULL;
+ u32 offset = 0;
+
+ hisi_enable_scu_a9();
if (!ctrl_base) {
np = of_find_compatible_node(NULL, NULL, "hisilicon,sysctrl");
if (!np) {
@@ -87,3 +95,39 @@ struct smp_operations hi3xxx_smp_ops __initdata = {
.cpu_kill = hi3xxx_cpu_kill,
#endif
};
+
+static void __init hix5hd2_smp_prepare_cpus(unsigned int max_cpus)
+{
+ hisi_enable_scu_a9();
+}
+
+void hix5hd2_set_scu_boot_addr(phys_addr_t start_addr, phys_addr_t jump_addr)
+{
+ void __iomem *virt;
+
+ virt = ioremap(start_addr, PAGE_SIZE);
+
+ writel_relaxed(0xe51ff004, virt); /* ldr pc, [rc, #-4] */
+ writel_relaxed(jump_addr, virt + 4); /* pc jump phy address */
+ iounmap(virt);
+}
+
+static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ phys_addr_t jumpaddr;
+
+ jumpaddr = virt_to_phys(hix5hd2_secondary_startup);
+ hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr);
+ hix5hd2_set_cpu(cpu, true);
+ arch_send_wakeup_ipi_mask(cpumask_of(cpu));
+ return 0;
+}
+
+
+struct smp_operations hix5hd2_smp_ops __initdata = {
+ .smp_prepare_cpus = hix5hd2_smp_prepare_cpus,
+ .smp_boot_secondary = hix5hd2_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+ .cpu_die = hix5hd2_cpu_die,
+#endif
+};
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 4/8] ARM: dts: Add hix5hd2-dkb dts file.
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (2 preceding siblings ...)
2014-07-28 12:51 ` [PATCH v5 3/8] ARM: hisi: enable hix5hd2 SoC Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 5/8] power: reset: move hisilicon reboot code Haojian Zhuang
` (5 subsequent siblings)
9 siblings, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
From: Haifeng Yan <yanhaifeng@gmail.com>
Add dts file for Hisilicon x5hd2 development kit board.
Signed-off-by: Haifeng Yan <yanhaifeng@gmail.com>
Signed-off-by: Jiancheng Xue <jchxue@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/hix5hd2-dkb.dts | 52 ++++++++++++
arch/arm/boot/dts/hix5hd2.dtsi | 170 ++++++++++++++++++++++++++++++++++++++
3 files changed, 223 insertions(+)
create mode 100644 arch/arm/boot/dts/hix5hd2-dkb.dts
create mode 100644 arch/arm/boot/dts/hix5hd2.dtsi
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5986ff6..721525e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -83,6 +83,7 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
exynos5440-ssdk5440.dtb \
exynos5800-peach-pi.dtb
dtb-$(CONFIG_ARCH_HI3xxx) += hi3620-hi4511.dtb
+dtb-$(CONFIG_ARCH_HIX5HD2) += hix5hd2-dkb.dtb
dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb \
ecx-2000.dtb
dtb-$(CONFIG_ARCH_INTEGRATOR) += integratorap.dtb \
diff --git a/arch/arm/boot/dts/hix5hd2-dkb.dts b/arch/arm/boot/dts/hix5hd2-dkb.dts
new file mode 100644
index 0000000..32c7fd1
--- /dev/null
+++ b/arch/arm/boot/dts/hix5hd2-dkb.dts
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2013-2014 Linaro Ltd.
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * publishhed by the Free Software Foundation.
+ */
+
+/dts-v1/;
+#include "hix5hd2.dtsi"
+
+/ {
+ model = "Hisilicon HIX5HD2 Development Board";
+ compatible = "hisilicon,hix5hd2";
+
+ chosen {
+ bootargs = "console=ttyAMA0,115200 earlyprintk";
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ compatible = "arm,cortex-a9";
+ device_type = "cpu";
+ reg = <0>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu at 1 {
+ compatible = "arm,cortex-a9";
+ device_type = "cpu";
+ reg = <1>;
+ next-level-cache = <&l2>;
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x80000000>;
+ };
+};
+
+&timer0 {
+ status = "okay";
+};
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/hix5hd2.dtsi b/arch/arm/boot/dts/hix5hd2.dtsi
new file mode 100644
index 0000000..f85ba29
--- /dev/null
+++ b/arch/arm/boot/dts/hix5hd2.dtsi
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2013-2014 Linaro Ltd.
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * publishhed by the Free Software Foundation.
+ */
+
+#include "skeleton.dtsi"
+#include <dt-bindings/clock/hix5hd2-clock.h>
+
+/ {
+ aliases {
+ serial0 = &uart0;
+ };
+
+ gic: interrupt-controller at f8a01000 {
+ compatible = "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ /* gic dist base, gic cpu base */
+ reg = <0xf8a01000 0x1000>, <0xf8a00100 0x100>;
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0 0xf8000000 0x8000000>;
+
+ amba {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "arm,amba-bus";
+ ranges;
+
+ timer0: timer at 00002000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00002000 0x1000>;
+ /* timer00 & timer01 */
+ interrupts = <0 24 4>;
+ clocks = <&clock HIX5HD2_FIXED_24M>;
+ status = "disabled";
+ };
+
+ timer1: timer at 00a29000 {
+ /*
+ * Only used in NORMAL state, not available ins
+ * SLOW or DOZE state.
+ * The rate is fixed in 24MHz.
+ */
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00a29000 0x1000>;
+ /* timer10 & timer11 */
+ interrupts = <0 25 4>;
+ clocks = <&clock HIX5HD2_FIXED_24M>;
+ status = "disabled";
+ };
+
+ timer2: timer at 00a2a000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00a2a000 0x1000>;
+ /* timer20 & timer21 */
+ interrupts = <0 26 4>;
+ clocks = <&clock HIX5HD2_FIXED_24M>;
+ status = "disabled";
+ };
+
+ timer3: timer at 00a2b000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00a2b000 0x1000>;
+ /* timer30 & timer31 */
+ interrupts = <0 27 4>;
+ clocks = <&clock HIX5HD2_FIXED_24M>;
+ status = "disabled";
+ };
+
+ timer4: timer at 00a81000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00a81000 0x1000>;
+ /* timer30 & timer31 */
+ interrupts = <0 28 4>;
+ clocks = <&clock HIX5HD2_FIXED_24M>;
+ status = "disabled";
+ };
+
+ uart0: uart at 00b00000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x00b00000 0x1000>;
+ interrupts = <0 49 4>;
+ clocks = <&clock HIX5HD2_FIXED_83M>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ uart1: uart at 00006000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x00006000 0x1000>;
+ interrupts = <0 50 4>;
+ clocks = <&clock HIX5HD2_FIXED_83M>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ uart2: uart at 00b02000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x00b02000 0x1000>;
+ interrupts = <0 51 4>;
+ clocks = <&clock HIX5HD2_FIXED_83M>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ uart3: uart at 00b03000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x00b03000 0x1000>;
+ interrupts = <0 52 4>;
+ clocks = <&clock HIX5HD2_FIXED_83M>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ uart4: uart at 00b04000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0xb04000 0x1000>;
+ interrupts = <0 53 4>;
+ clocks = <&clock HIX5HD2_FIXED_83M>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+ };
+
+ local_timer at 00a00600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x00a00600 0x20>;
+ interrupts = <1 13 0xf01>;
+ };
+
+ l2: l2-cache {
+ compatible = "arm,pl310-cache";
+ reg = <0x00a10000 0x100000>;
+ interrupts = <0 15 4>;
+ cache-unified;
+ cache-level = <2>;
+ };
+
+ sysctrl: system-controller at 00000000 {
+ compatible = "hisilicon,sysctrl";
+ reg = <0x00000000 0x1000>;
+ reboot-offset = <0x4>;
+ };
+
+ cpuctrl at 00a22000 {
+ compatible = "hisilicon,cpuctrl";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x00a22000 0x2000>;
+ ranges = <0 0x00a22000 0x2000>;
+
+ clock: clock at 0 {
+ compatible = "hisilicon,hix5hd2-clock";
+ reg = <0 0x2000>;
+ #clock-cells = <1>;
+ };
+ };
+ };
+};
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 5/8] power: reset: move hisilicon reboot code
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (3 preceding siblings ...)
2014-07-28 12:51 ` [PATCH v5 4/8] ARM: dts: Add hix5hd2-dkb dts file Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 13:04 ` Arnd Bergmann
2014-09-06 18:39 ` Sebastian Reichel
2014-07-28 12:51 ` [PATCH v5 6/8] ARM: config: enable ARCH_HIX5HD2 Haojian Zhuang
` (4 subsequent siblings)
9 siblings, 2 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
Move reboot code from hisilicon platform driver into reset driver.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/mach-hisi/Kconfig | 3 ++
arch/arm/mach-hisi/hisilicon.c | 33 -------------------
drivers/power/reset/Kconfig | 6 ++++
drivers/power/reset/Makefile | 1 +
drivers/power/reset/hisi-reboot.c | 67 +++++++++++++++++++++++++++++++++++++++
5 files changed, 77 insertions(+), 33 deletions(-)
create mode 100644 drivers/power/reset/hisi-reboot.c
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig
index 90fdbb4..9848829 100644
--- a/arch/arm/mach-hisi/Kconfig
+++ b/arch/arm/mach-hisi/Kconfig
@@ -4,6 +4,9 @@ config ARCH_HISI
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
+ select POWER_RESET
+ select POWER_RESET_HISI
+ select POWER_SUPPLY
if ARCH_HISI
diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
index 2bfbe3f..7996c6b 100644
--- a/arch/arm/mach-hisi/hisilicon.c
+++ b/arch/arm/mach-hisi/hisilicon.c
@@ -14,10 +14,6 @@
#include <linux/clk-provider.h>
#include <linux/clocksource.h>
#include <linux/irqchip.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-
-#include <asm/proc-fns.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -51,32 +47,6 @@ static void __init hi3620_map_io(void)
iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc));
}
-static void hi3xxx_restart(enum reboot_mode mode, const char *cmd)
-{
- struct device_node *np;
- void __iomem *base;
- int offset;
-
- np = of_find_compatible_node(NULL, NULL, "hisilicon,sysctrl");
- if (!np) {
- pr_err("failed to find hisilicon,sysctrl node\n");
- return;
- }
- base = of_iomap(np, 0);
- if (!base) {
- pr_err("failed to map address in hisilicon,sysctrl node\n");
- return;
- }
- if (of_property_read_u32(np, "reboot-offset", &offset) < 0) {
- pr_err("failed to find reboot-offset property\n");
- return;
- }
- writel_relaxed(0xdeadbeef, base + offset);
-
- while (1)
- cpu_do_idle();
-}
-
static const char *hi3xxx_compat[] __initconst = {
"hisilicon,hi3620-hi4511",
NULL,
@@ -86,7 +56,6 @@ DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.map_io = hi3620_map_io,
.dt_compat = hi3xxx_compat,
.smp = smp_ops(hi3xxx_smp_ops),
- .restart = hi3xxx_restart,
MACHINE_END
static const char *hix5hd2_compat[] __initconst = {
@@ -96,7 +65,5 @@ static const char *hix5hd2_compat[] __initconst = {
DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
.dt_compat = hix5hd2_compat,
- .init_late = hi3xxx_init_late,
.smp = smp_ops(hix5hd2_smp_ops),
- .restart = hi3xxx_restart,
MACHINE_END
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index bdcf517..4127f49 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -28,6 +28,12 @@ config POWER_RESET_GPIO
If your board needs a GPIO high/low to power down, say Y and
create a binding in your devicetree.
+config POWER_RESET_HISI
+ bool "Hisilicon power-off driver"
+ depends on POWER_RESET && ARCH_HISI
+ help
+ Reboot support for Hisilicon boards.
+
config POWER_RESET_MSM
bool "Qualcomm MSM power-off driver"
depends on POWER_RESET && ARCH_QCOM
diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
index dde2e8b..fe0f228 100644
--- a/drivers/power/reset/Makefile
+++ b/drivers/power/reset/Makefile
@@ -1,6 +1,7 @@
obj-$(CONFIG_POWER_RESET_AS3722) += as3722-poweroff.o
obj-$(CONFIG_POWER_RESET_AXXIA) += axxia-reset.o
obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o
+obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o
obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o
obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o
obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o
diff --git a/drivers/power/reset/hisi-reboot.c b/drivers/power/reset/hisi-reboot.c
new file mode 100644
index 0000000..0c91d02
--- /dev/null
+++ b/drivers/power/reset/hisi-reboot.c
@@ -0,0 +1,67 @@
+/*
+ * Hisilicon SoC reset code
+ *
+ * Copyright (c) 2014 Hisilicon Ltd.
+ * Copyright (c) 2014 Linaro Ltd.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+
+#include <asm/proc-fns.h>
+#include <asm/system_misc.h>
+
+static void __iomem *base;
+static u32 reboot_offset;
+
+static void hisi_restart(enum reboot_mode mode, const char *cmd)
+{
+ writel_relaxed(0xdeadbeef, base + reboot_offset);
+
+ while (1)
+ cpu_do_idle();
+}
+
+static int hisi_reboot_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+
+ base = of_iomap(np, 0);
+ if (!base) {
+ WARN(1, "failed to map base address");
+ return -ENODEV;
+ }
+
+ if (of_property_read_u32(np, "reboot-offset", &reboot_offset) < 0) {
+ pr_err("failed to find reboot-offset property\n");
+ return -EINVAL;
+ }
+
+ arm_pm_restart = hisi_restart;
+
+ return 0;
+}
+
+static struct of_device_id hisi_reboot_of_match[] = {
+ { .compatible = "hisilicon,sysctrl" },
+ {}
+};
+
+static struct platform_driver hisi_reboot_driver = {
+ .probe = hisi_reboot_probe,
+ .driver = {
+ .name = "hisi-reboot",
+ .of_match_table = hisi_reboot_of_match,
+ },
+};
+module_platform_driver(hisi_reboot_driver);
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 5/8] power: reset: move hisilicon reboot code
2014-07-28 12:51 ` [PATCH v5 5/8] power: reset: move hisilicon reboot code Haojian Zhuang
@ 2014-07-28 13:04 ` Arnd Bergmann
2014-09-06 18:39 ` Sebastian Reichel
1 sibling, 0 replies; 22+ messages in thread
From: Arnd Bergmann @ 2014-07-28 13:04 UTC (permalink / raw)
To: linux-arm-kernel
On Monday 28 July 2014 20:51:20 Haojian Zhuang wrote:
> +
> +static struct of_device_id hisi_reboot_of_match[] = {
> + { .compatible = "hisilicon,sysctrl" },
> + {}
> +};
> +
> +static struct platform_driver hisi_reboot_driver = {
> + .probe = hisi_reboot_probe,
> + .driver = {
> + .name = "hisi-reboot",
> + .of_match_table = hisi_reboot_of_match,
> + },
> +};
> +module_platform_driver(hisi_reboot_driver);
I think this will get you into trouble if anything else starts
using the "hisilicon,sysctrl" device node. But as long as nothing
does, this seems fine.
Arnd
^ permalink raw reply [flat|nested] 22+ messages in thread* [PATCH v5 5/8] power: reset: move hisilicon reboot code
2014-07-28 12:51 ` [PATCH v5 5/8] power: reset: move hisilicon reboot code Haojian Zhuang
2014-07-28 13:04 ` Arnd Bergmann
@ 2014-09-06 18:39 ` Sebastian Reichel
1 sibling, 0 replies; 22+ messages in thread
From: Sebastian Reichel @ 2014-09-06 18:39 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
On Mon, Jul 28, 2014 at 08:51:20PM +0800, Haojian Zhuang wrote:
> Move reboot code from hisilicon platform driver into reset driver.
>
> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
>
> [...]
> +static struct of_device_id hisi_reboot_of_match[] = {
> + { .compatible = "hisilicon,sysctrl" },
> + {}
> +};
> [...]
The patch looks fine, but it's missing DT Binding
documentation (see Documentation/devicetree/bindings).
Apart from that I suggest to change the compatible value
to something like "hisilicon,reset-sysctrl".
-- Sebastian
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^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v5 6/8] ARM: config: enable ARCH_HIX5HD2
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (4 preceding siblings ...)
2014-07-28 12:51 ` [PATCH v5 5/8] power: reset: move hisilicon reboot code Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 7/8] ARM: hisi: set l2 aux for pl310 Haojian Zhuang
` (3 subsequent siblings)
9 siblings, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
Since both ARCH_HI3xxx and ARCH_HIX5HD2 are based on Cortex A9 & they're
using similiar kernel features, make them share the hi3xxx_config.
And add it into multi_v7_defconfig too.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/configs/hi3xxx_defconfig | 2 ++
arch/arm/configs/multi_v7_defconfig | 1 +
2 files changed, 3 insertions(+)
diff --git a/arch/arm/configs/hi3xxx_defconfig b/arch/arm/configs/hi3xxx_defconfig
index f186bdf..9630687 100644
--- a/arch/arm/configs/hi3xxx_defconfig
+++ b/arch/arm/configs/hi3xxx_defconfig
@@ -3,7 +3,9 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_RD_LZMA=y
+CONFIG_ARCH_HISI=y
CONFIG_ARCH_HI3xxx=y
+CONFIG_ARCH_HIX5HD2=y
CONFIG_SMP=y
CONFIG_PREEMPT=y
CONFIG_AEABI=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index e2d6204..d34ab30 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -25,6 +25,7 @@ CONFIG_MACH_BERLIN_BG2CD=y
CONFIG_MACH_BERLIN_BG2Q=y
CONFIG_ARCH_HIGHBANK=y
CONFIG_ARCH_HI3xxx=y
+CONFIG_ARCH_HIX5HD2=y
CONFIG_ARCH_KEYSTONE=y
CONFIG_ARCH_MXC=y
CONFIG_MACH_IMX51_DT=y
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 7/8] ARM: hisi: set l2 aux for pl310
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (5 preceding siblings ...)
2014-07-28 12:51 ` [PATCH v5 6/8] ARM: config: enable ARCH_HIX5HD2 Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 13:07 ` Arnd Bergmann
2014-07-28 13:41 ` [PATCH v6 " Haojian Zhuang
2014-07-28 12:51 ` [PATCH v5 8/8] ARM: hisi: remove smp from machine descriptor Haojian Zhuang
` (2 subsequent siblings)
9 siblings, 2 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
Enable L2 aux value for both HI3xxx and HIX5HD2.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/mach-hisi/hisilicon.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
index 7996c6b..284f9a1 100644
--- a/arch/arm/mach-hisi/hisilicon.c
+++ b/arch/arm/mach-hisi/hisilicon.c
@@ -55,6 +55,8 @@ static const char *hi3xxx_compat[] __initconst = {
DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.map_io = hi3620_map_io,
.dt_compat = hi3xxx_compat,
+ .l2c_aux_val = 0x0,
+ .l2c_aux_mask = 0xffffffff,
.smp = smp_ops(hi3xxx_smp_ops),
MACHINE_END
@@ -65,5 +67,7 @@ static const char *hix5hd2_compat[] __initconst = {
DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
.dt_compat = hix5hd2_compat,
+ .l2c_aux_val = 0x00050000,
+ .l2c_aux_mask = 0xfff0ffff,
.smp = smp_ops(hix5hd2_smp_ops),
MACHINE_END
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 7/8] ARM: hisi: set l2 aux for pl310
2014-07-28 12:51 ` [PATCH v5 7/8] ARM: hisi: set l2 aux for pl310 Haojian Zhuang
@ 2014-07-28 13:07 ` Arnd Bergmann
2014-07-28 13:41 ` [PATCH v6 " Haojian Zhuang
1 sibling, 0 replies; 22+ messages in thread
From: Arnd Bergmann @ 2014-07-28 13:07 UTC (permalink / raw)
To: linux-arm-kernel
On Monday 28 July 2014 20:51:22 Haojian Zhuang wrote:
> DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
> .dt_compat = hix5hd2_compat,
> + .l2c_aux_val = 0x00050000,
> + .l2c_aux_mask = 0xfff0ffff,
> .smp = smp_ops(hix5hd2_smp_ops),
> MACHINE_END
What is wrong with the default settings as passed by the boot loader
as you do for Hi3620?
You should be able to just used 0x0 and 0xffffffff here, unless there is
a bug in the hardware and/or the boot loader. You can also override
certain settings by adding the appropriate properties to the l2x0
device node.
Sorry, but this patch is not good as-is.
Arnd
^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v6 7/8] ARM: hisi: set l2 aux for pl310
2014-07-28 12:51 ` [PATCH v5 7/8] ARM: hisi: set l2 aux for pl310 Haojian Zhuang
2014-07-28 13:07 ` Arnd Bergmann
@ 2014-07-28 13:41 ` Haojian Zhuang
1 sibling, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 13:41 UTC (permalink / raw)
To: linux-arm-kernel
Enable L2 aux value for Hi3620.
Changelog:
v6:
* Remove L2 aux value of hix5hd2 since we still need some discussion.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/mach-hisi/hisilicon.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
index 7996c6b..5c295ee 100644
--- a/arch/arm/mach-hisi/hisilicon.c
+++ b/arch/arm/mach-hisi/hisilicon.c
@@ -55,6 +55,8 @@ static const char *hi3xxx_compat[] __initconst = {
DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.map_io = hi3620_map_io,
.dt_compat = hi3xxx_compat,
+ .l2c_aux_val = 0x0,
+ .l2c_aux_mask = 0xffffffff,
.smp = smp_ops(hi3xxx_smp_ops),
MACHINE_END
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread
* [PATCH v5 8/8] ARM: hisi: remove smp from machine descriptor
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (6 preceding siblings ...)
2014-07-28 12:51 ` [PATCH v5 7/8] ARM: hisi: set l2 aux for pl310 Haojian Zhuang
@ 2014-07-28 12:51 ` Haojian Zhuang
2014-07-28 13:08 ` Arnd Bergmann
2014-07-28 13:45 ` [PATCH v6 " Haojian Zhuang
2014-07-28 13:11 ` [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Arnd Bergmann
2014-07-29 6:40 ` Olof Johansson
9 siblings, 2 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 12:51 UTC (permalink / raw)
To: linux-arm-kernel
Use CPU_METHOD_OF_DECLARE() instead. And declare smp method in dts file.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/boot/dts/hi3620.dtsi | 1 +
arch/arm/boot/dts/hix5hd2-dkb.dts | 1 +
arch/arm/mach-hisi/hisilicon.c | 4 ----
arch/arm/mach-hisi/platsmp.c | 3 +++
4 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/hi3620.dtsi b/arch/arm/boot/dts/hi3620.dtsi
index ab1116d..ea6b0c1 100644
--- a/arch/arm/boot/dts/hi3620.dtsi
+++ b/arch/arm/boot/dts/hi3620.dtsi
@@ -33,6 +33,7 @@
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "hisilicon,hi3xxx-smp";
cpu at 0 {
device_type = "cpu";
diff --git a/arch/arm/boot/dts/hix5hd2-dkb.dts b/arch/arm/boot/dts/hix5hd2-dkb.dts
index 32c7fd1..556c98a 100644
--- a/arch/arm/boot/dts/hix5hd2-dkb.dts
+++ b/arch/arm/boot/dts/hix5hd2-dkb.dts
@@ -21,6 +21,7 @@
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "hisilicon,hix5hd2-smp";
cpu at 0 {
compatible = "arm,cortex-a9";
diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
index 284f9a1..2544d84 100644
--- a/arch/arm/mach-hisi/hisilicon.c
+++ b/arch/arm/mach-hisi/hisilicon.c
@@ -18,8 +18,6 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-#include "core.h"
-
#define HI3620_SYSCTRL_PHYS_BASE 0xfc802000
#define HI3620_SYSCTRL_VIRT_BASE 0xfe802000
@@ -57,7 +55,6 @@ DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.dt_compat = hi3xxx_compat,
.l2c_aux_val = 0x0,
.l2c_aux_mask = 0xffffffff,
- .smp = smp_ops(hi3xxx_smp_ops),
MACHINE_END
static const char *hix5hd2_compat[] __initconst = {
@@ -69,5 +66,4 @@ DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
.dt_compat = hix5hd2_compat,
.l2c_aux_val = 0x00050000,
.l2c_aux_mask = 0xfff0ffff,
- .smp = smp_ops(hix5hd2_smp_ops),
MACHINE_END
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index ecf7058..cc377b6 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -131,3 +131,6 @@ struct smp_operations hix5hd2_smp_ops __initdata = {
.cpu_die = hix5hd2_cpu_die,
#endif
};
+
+CPU_METHOD_OF_DECLARE(hi3xxx_smp, "hisilicon,hi3xxx-smp", &hi3xxx_smp_ops);
+CPU_METHOD_OF_DECLARE(hix5hd2_smp, "hisilicon,hix5hd2-smp", &hix5hd2_smp_ops);
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH v5 8/8] ARM: hisi: remove smp from machine descriptor
2014-07-28 12:51 ` [PATCH v5 8/8] ARM: hisi: remove smp from machine descriptor Haojian Zhuang
@ 2014-07-28 13:08 ` Arnd Bergmann
2014-07-28 13:45 ` [PATCH v6 " Haojian Zhuang
1 sibling, 0 replies; 22+ messages in thread
From: Arnd Bergmann @ 2014-07-28 13:08 UTC (permalink / raw)
To: linux-arm-kernel
On Monday 28 July 2014 20:51:23 Haojian Zhuang wrote:
> + enable-method = "hisilicon,hi3xxx-smp";
>
Please always use a specific chip identification in strings like this,
e.g. "hisilicon,hi3620-smp". Other machines using the same code are supposed
to keep that string as well even if they have a different ID.
Arnd
^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v6 8/8] ARM: hisi: remove smp from machine descriptor
2014-07-28 12:51 ` [PATCH v5 8/8] ARM: hisi: remove smp from machine descriptor Haojian Zhuang
2014-07-28 13:08 ` Arnd Bergmann
@ 2014-07-28 13:45 ` Haojian Zhuang
1 sibling, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 13:45 UTC (permalink / raw)
To: linux-arm-kernel
Use CPU_METHOD_OF_DECLARE() instead. And declare smp method in dts file.
Changelog:
v6:
* Use hisilicon,hi3620-smp as enable-method property in Hi3620 dts.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
arch/arm/boot/dts/hi3620.dtsi | 1 +
arch/arm/boot/dts/hix5hd2-dkb.dts | 1 +
arch/arm/mach-hisi/hisilicon.c | 4 ----
arch/arm/mach-hisi/platsmp.c | 3 +++
4 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/hi3620.dtsi b/arch/arm/boot/dts/hi3620.dtsi
index ab1116d..a7b0d3d 100644
--- a/arch/arm/boot/dts/hi3620.dtsi
+++ b/arch/arm/boot/dts/hi3620.dtsi
@@ -33,6 +33,7 @@
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "hisilicon,hi3620-smp";
cpu at 0 {
device_type = "cpu";
diff --git a/arch/arm/boot/dts/hix5hd2-dkb.dts b/arch/arm/boot/dts/hix5hd2-dkb.dts
index 32c7fd1..556c98a 100644
--- a/arch/arm/boot/dts/hix5hd2-dkb.dts
+++ b/arch/arm/boot/dts/hix5hd2-dkb.dts
@@ -21,6 +21,7 @@
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "hisilicon,hix5hd2-smp";
cpu at 0 {
compatible = "arm,cortex-a9";
diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
index 5c295ee..f37fb65 100644
--- a/arch/arm/mach-hisi/hisilicon.c
+++ b/arch/arm/mach-hisi/hisilicon.c
@@ -18,8 +18,6 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-#include "core.h"
-
#define HI3620_SYSCTRL_PHYS_BASE 0xfc802000
#define HI3620_SYSCTRL_VIRT_BASE 0xfe802000
@@ -57,7 +55,6 @@ DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.dt_compat = hi3xxx_compat,
.l2c_aux_val = 0x0,
.l2c_aux_mask = 0xffffffff,
- .smp = smp_ops(hi3xxx_smp_ops),
MACHINE_END
static const char *hix5hd2_compat[] __initconst = {
@@ -67,5 +64,4 @@ static const char *hix5hd2_compat[] __initconst = {
DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
.dt_compat = hix5hd2_compat,
- .smp = smp_ops(hix5hd2_smp_ops),
MACHINE_END
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index ecf7058..575dd82 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -131,3 +131,6 @@ struct smp_operations hix5hd2_smp_ops __initdata = {
.cpu_die = hix5hd2_cpu_die,
#endif
};
+
+CPU_METHOD_OF_DECLARE(hi3xxx_smp, "hisilicon,hi3620-smp", &hi3xxx_smp_ops);
+CPU_METHOD_OF_DECLARE(hix5hd2_smp, "hisilicon,hix5hd2-smp", &hix5hd2_smp_ops);
--
1.9.1
^ permalink raw reply related [flat|nested] 22+ messages in thread
* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (7 preceding siblings ...)
2014-07-28 12:51 ` [PATCH v5 8/8] ARM: hisi: remove smp from machine descriptor Haojian Zhuang
@ 2014-07-28 13:11 ` Arnd Bergmann
2014-07-28 13:27 ` Haojian Zhuang
2014-07-29 6:40 ` Olof Johansson
9 siblings, 1 reply; 22+ messages in thread
From: Arnd Bergmann @ 2014-07-28 13:11 UTC (permalink / raw)
To: linux-arm-kernel
On Monday 28 July 2014 20:51:15 Haojian Zhuang wrote:
> Changelog:
> v5:
> * Use CPU_OF_DECLARE_METHOD().
> * State "hisilicon,cpuctrl" in documents.
> * Set PL310 L2 aux value in machine descriptor.
> * Use enable-method property for smp in dts file.
> * Move reset code from machine platform driver into power reset driver.
> * Move HIP04 debug uart into another patch series.
Looks ok for the most part. I have a trivial comment on patch 8/8,
please correct that.
The comment on patch 7/8 is more severe. Depending on the hardware
requirements, this may end up being much harder to fix, but it
needs some discussion. Adding the values only for hi3620 in the
meantime should be ok.
Arnd
^ permalink raw reply [flat|nested] 22+ messages in thread* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-28 13:11 ` [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Arnd Bergmann
@ 2014-07-28 13:27 ` Haojian Zhuang
0 siblings, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-28 13:27 UTC (permalink / raw)
To: linux-arm-kernel
On 28 July 2014 21:11, Arnd Bergmann <arnd@arndb.de> wrote:
> On Monday 28 July 2014 20:51:15 Haojian Zhuang wrote:
>> Changelog:
>> v5:
>> * Use CPU_OF_DECLARE_METHOD().
>> * State "hisilicon,cpuctrl" in documents.
>> * Set PL310 L2 aux value in machine descriptor.
>> * Use enable-method property for smp in dts file.
>> * Move reset code from machine platform driver into power reset driver.
>> * Move HIP04 debug uart into another patch series.
>
> Looks ok for the most part. I have a trivial comment on patch 8/8,
> please correct that.
>
> The comment on patch 7/8 is more severe. Depending on the hardware
> requirements, this may end up being much harder to fix, but it
> needs some discussion. Adding the values only for hi3620 in the
> meantime should be ok.
>
> Arnd
OK. I'll remove the l2c aux value of hix5hd2 on patch 7/8. And I'll
use hi3620-smp in patch 8/8.
Regards
Haojian
^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-28 12:51 [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Haojian Zhuang
` (8 preceding siblings ...)
2014-07-28 13:11 ` [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC Arnd Bergmann
@ 2014-07-29 6:40 ` Olof Johansson
2014-07-29 8:09 ` xuwei
9 siblings, 1 reply; 22+ messages in thread
From: Olof Johansson @ 2014-07-29 6:40 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Jul 28, 2014 at 08:51:15PM +0800, Haojian Zhuang wrote:
> Changelog:
> v5:
> * Use CPU_OF_DECLARE_METHOD().
> * State "hisilicon,cpuctrl" in documents.
> * Set PL310 L2 aux value in machine descriptor.
> * Use enable-method property for smp in dts file.
> * Move reset code from machine platform driver into power reset driver.
> * Move HIP04 debug uart into another patch series.
Usually there's some more description in the cover letter than just the
changelog.
Anyway, my question is this: what's the plan for upstreaming of this SoC? Is it
a mobile-only SoC, or has it been used (or will it be used) in other embedded
use cases, public development boards and the like?
If it is a mobile-targeted product, what is the plan and rough timeline
for upstreaming things such as display/graphics and power management
components?
Thanks!
-Olof
^ permalink raw reply [flat|nested] 22+ messages in thread* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-29 6:40 ` Olof Johansson
@ 2014-07-29 8:09 ` xuwei
2014-07-31 1:06 ` Olof Johansson
0 siblings, 1 reply; 22+ messages in thread
From: xuwei @ 2014-07-29 8:09 UTC (permalink / raw)
To: linux-arm-kernel
On 2014/7/29 14:40, Olof Johansson wrote:
> On Mon, Jul 28, 2014 at 08:51:15PM +0800, Haojian Zhuang wrote:
>> Changelog:
>> v5:
>> * Use CPU_OF_DECLARE_METHOD().
>> * State "hisilicon,cpuctrl" in documents.
>> * Set PL310 L2 aux value in machine descriptor.
>> * Use enable-method property for smp in dts file.
>> * Move reset code from machine platform driver into power reset driver.
>> * Move HIP04 debug uart into another patch series.
>
> Usually there's some more description in the cover letter than just the
> changelog.
Hi Olof,
> Anyway, my question is this: what's the plan for upstreaming of this SoC? Is it
> a mobile-only SoC, or has it been used (or will it be used) in other embedded
> use cases, public development boards and the like?
HiX5HD2 is for the STB market.
Hisilicon has already made some public development boards for Linaro and hope
it could be used in Linaro Home Group.
And if you are interesting about it, we could send one to you.
There are several phases for upstreaming of this SoC.
At the first phase, it includes the basic SoC(earlycon, gic, timer, L2 cache,
SMP and reboot), net, emc, USB and clock.
> If it is a mobile-targeted product, what is the plan and rough timeline
> for upstreaming things such as display/graphics and power management
> components?
About the display/graphics/video/audio, we are still discussing how to upstream.
There are two limitations. One is the code we have now does not adapt with kernel.
The other is the policy of company which part is allowed to upstream.
But anyway, we hope we could do upstreaming.
Best Regards,
Wei
>
> Thanks!
>
>
> -Olof
>
>
>
^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-29 8:09 ` xuwei
@ 2014-07-31 1:06 ` Olof Johansson
2014-07-31 1:51 ` Haojian Zhuang
2014-07-31 2:00 ` xuwei
0 siblings, 2 replies; 22+ messages in thread
From: Olof Johansson @ 2014-07-31 1:06 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
On Tue, Jul 29, 2014 at 1:09 AM, xuwei <xuwei5@hisilicon.com> wrote:
>
>
> On 2014/7/29 14:40, Olof Johansson wrote:
>> On Mon, Jul 28, 2014 at 08:51:15PM +0800, Haojian Zhuang wrote:
>>> Changelog:
>>> v5:
>>> * Use CPU_OF_DECLARE_METHOD().
>>> * State "hisilicon,cpuctrl" in documents.
>>> * Set PL310 L2 aux value in machine descriptor.
>>> * Use enable-method property for smp in dts file.
>>> * Move reset code from machine platform driver into power reset driver.
>>> * Move HIP04 debug uart into another patch series.
>>
>> Usually there's some more description in the cover letter than just the
>> changelog.
>
> Hi Olof,
>
>> Anyway, my question is this: what's the plan for upstreaming of this SoC? Is it
>> a mobile-only SoC, or has it been used (or will it be used) in other embedded
>> use cases, public development boards and the like?
>
> HiX5HD2 is for the STB market.
> Hisilicon has already made some public development boards for Linaro and hope
> it could be used in Linaro Home Group.
> And if you are interesting about it, we could send one to you.
>
> There are several phases for upstreaming of this SoC.
> At the first phase, it includes the basic SoC(earlycon, gic, timer, L2 cache,
> SMP and reboot), net, emc, USB and clock.
I am mostly asking because I want to get a feel for whether you will
complete upstreaming, or just upstream the minimal set of platform
support that won't actually be useful for anyone (like with what's
already in the tree).
For a STB chip, display is critical. Do you have a DRM driver planned?
>> If it is a mobile-targeted product, what is the plan and rough timeline
>> for upstreaming things such as display/graphics and power management
>> components?
>
> About the display/graphics/video/audio, we are still discussing how to upstream.
> There are two limitations. One is the code we have now does not adapt with kernel.
> The other is the policy of company which part is allowed to upstream.
This sounds odd. Are they shipping this chip in products today? If so,
they already have to publish GPL sources, so "allowed" to upstream is
a very odd limitation.
> But anyway, we hope we could do upstreaming.
Ok. I would very much like to see successful upstreaming of hisilicon
platforms to happen, but the track record so far hasn't been very
promising. If you think you'll get all the way and make the platform
useful, then that's a great sign. I am very concerned about lack of
graphics plans though.
Thanks,
-Olof
^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-31 1:06 ` Olof Johansson
@ 2014-07-31 1:51 ` Haojian Zhuang
2014-07-31 2:00 ` xuwei
1 sibling, 0 replies; 22+ messages in thread
From: Haojian Zhuang @ 2014-07-31 1:51 UTC (permalink / raw)
To: linux-arm-kernel
On 31 July 2014 09:06, Olof Johansson <olof@lixom.net> wrote:
> Hi,
>
> On Tue, Jul 29, 2014 at 1:09 AM, xuwei <xuwei5@hisilicon.com> wrote:
>>
>>
>> On 2014/7/29 14:40, Olof Johansson wrote:
>>> On Mon, Jul 28, 2014 at 08:51:15PM +0800, Haojian Zhuang wrote:
>>>> Changelog:
>>>> v5:
>>>> * Use CPU_OF_DECLARE_METHOD().
>>>> * State "hisilicon,cpuctrl" in documents.
>>>> * Set PL310 L2 aux value in machine descriptor.
>>>> * Use enable-method property for smp in dts file.
>>>> * Move reset code from machine platform driver into power reset driver.
>>>> * Move HIP04 debug uart into another patch series.
>>>
>>> Usually there's some more description in the cover letter than just the
>>> changelog.
>>
>> Hi Olof,
>>
>>> Anyway, my question is this: what's the plan for upstreaming of this SoC? Is it
>>> a mobile-only SoC, or has it been used (or will it be used) in other embedded
>>> use cases, public development boards and the like?
>>
>> HiX5HD2 is for the STB market.
>> Hisilicon has already made some public development boards for Linaro and hope
>> it could be used in Linaro Home Group.
>> And if you are interesting about it, we could send one to you.
>>
>> There are several phases for upstreaming of this SoC.
>> At the first phase, it includes the basic SoC(earlycon, gic, timer, L2 cache,
>> SMP and reboot), net, emc, USB and clock.
>
> I am mostly asking because I want to get a feel for whether you will
> complete upstreaming, or just upstream the minimal set of platform
> support that won't actually be useful for anyone (like with what's
> already in the tree).
>
> For a STB chip, display is critical. Do you have a DRM driver planned?
>
Now Android is deployed on this platform. They're also investigating
DRM driver. I think that Android on DRM driver should be resolved
first. Maybe Linaro LHG is investigating it.
>>> If it is a mobile-targeted product, what is the plan and rough timeline
>>> for upstreaming things such as display/graphics and power management
>>> components?
>>
>> About the display/graphics/video/audio, we are still discussing how to upstream.
>> There are two limitations. One is the code we have now does not adapt with kernel.
>> The other is the policy of company which part is allowed to upstream.
>
> This sounds odd. Are they shipping this chip in products today? If so,
> they already have to publish GPL sources, so "allowed" to upstream is
> a very odd limitation.
>
>> But anyway, we hope we could do upstreaming.
>
> Ok. I would very much like to see successful upstreaming of hisilicon
> platforms to happen, but the track record so far hasn't been very
> promising. If you think you'll get all the way and make the platform
> useful, then that's a great sign. I am very concerned about lack of
> graphics plans though.
>
>
At first we want to upstream all the components. But we have to be step by step.
https://github.com/hisilicon/linaro-kernel/commits/xjc/hix5hd2-lsk-3.10-msp
Display, Irda, i2c, mmc, sata, and some other drivers are already
contained in this public git repository. If HIX5HD2 SoC could be
upstream, all these driver should also be upstream. Some drivers are
not mature, we still need to modify them in the process of upstream.
Best Regards
Haojian
^ permalink raw reply [flat|nested] 22+ messages in thread
* [PATCH v5 0/8] enable Hisilicon HIX5HD2 SoC
2014-07-31 1:06 ` Olof Johansson
2014-07-31 1:51 ` Haojian Zhuang
@ 2014-07-31 2:00 ` xuwei
1 sibling, 0 replies; 22+ messages in thread
From: xuwei @ 2014-07-31 2:00 UTC (permalink / raw)
To: linux-arm-kernel
On 2014/7/31 9:06, Olof Johansson wrote:
> Hi,
>
> On Tue, Jul 29, 2014 at 1:09 AM, xuwei <xuwei5@hisilicon.com> wrote:
>>
>>
>> On 2014/7/29 14:40, Olof Johansson wrote:
>>> On Mon, Jul 28, 2014 at 08:51:15PM +0800, Haojian Zhuang wrote:
>>>> Changelog:
>>>> v5:
>>>> * Use CPU_OF_DECLARE_METHOD().
>>>> * State "hisilicon,cpuctrl" in documents.
>>>> * Set PL310 L2 aux value in machine descriptor.
>>>> * Use enable-method property for smp in dts file.
>>>> * Move reset code from machine platform driver into power reset driver.
>>>> * Move HIP04 debug uart into another patch series.
>>>
>>> Usually there's some more description in the cover letter than just the
>>> changelog.
>>
>> Hi Olof,
>>
>>> Anyway, my question is this: what's the plan for upstreaming of this SoC? Is it
>>> a mobile-only SoC, or has it been used (or will it be used) in other embedded
>>> use cases, public development boards and the like?
>>
>> HiX5HD2 is for the STB market.
>> Hisilicon has already made some public development boards for Linaro and hope
>> it could be used in Linaro Home Group.
>> And if you are interesting about it, we could send one to you.
>>
>> There are several phases for upstreaming of this SoC.
>> At the first phase, it includes the basic SoC(earlycon, gic, timer, L2 cache,
>> SMP and reboot), net, emc, USB and clock.
Hi Olof,
> I am mostly asking because I want to get a feel for whether you will
> complete upstreaming, or just upstream the minimal set of platform
> support that won't actually be useful for anyone (like with what's
> already in the tree).
> For a STB chip, display is critical. Do you have a DRM driver planned?
I know what you are concerned.
We indeed want to complete upstreaming.
Because we also could not get any profit from the minimal set.
We have already set up a team for upstreaming.
About the DRM driver, we are still changing the source code.
Once it is done, we will start upstreaming it.
>
>>> If it is a mobile-targeted product, what is the plan and rough timeline
>>> for upstreaming things such as display/graphics and power management
>>> components?
>>
>> About the display/graphics/video/audio, we are still discussing how to upstream.
>> There are two limitations. One is the code we have now does not adapt with kernel.
>> The other is the policy of company which part is allowed to upstream.
>
> This sounds odd. Are they shipping this chip in products today? If so,
> they already have to publish GPL sources, so "allowed" to upstream is
> a very odd limitation.
Yes. There are already some companies use this SoC on their product.
We follow the GPL licenses and the sources are open for our clients.
And the "allowed" here means it depend on the strategy of our company
how many parts to upstream.
And as the info in Haojian's reply, we are pushing the usptreaming.
Best Regards,
Wei
>> But anyway, we hope we could do upstreaming.
>
> Ok. I would very much like to see successful upstreaming of hisilicon
> platforms to happen, but the track record so far hasn't been very
> promising. If you think you'll get all the way and make the platform
> useful, then that's a great sign. I am very concerned about lack of
> graphics plans though.
>
>
> Thanks,
>
> -Olof
>
> .
>
^ permalink raw reply [flat|nested] 22+ messages in thread