[RFC][WAS:bcmai][PATCH V2] axi: add AXI bus driver

Rafał Miłecki
2011-04-08T19:08:04Z

Cc: Michael Büsch <mb@bu3sch.de>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: George Kashperko <george@znau.edu.ua>
Cc: Arend van Spriel <arend@broadcom.com>
Cc: linux-arm-kernel@lists.infradead.org <linux-arm-kernel@lists.infradead.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linuxdriverproject <devel@linuxdriverproject.org>
Cc: linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
This is second try for introducing new bus driver.
V2: Rename to axi
Use DEFINE_PCI_DEVICE_TABLE in bridge
Make use of pr_fmt and pr_*
Store core class
Rename bridge to not b43 specific
Replace magic 0x1000 with BCMAI_CORE_SIZE
Remove some old "ssb" names and defines
Move BCMAI_ADDR_BASE def
Add drvdata field
TODO:
- Interrupts
- Reloading driver
---
drivers/Kconfig | 2 +
drivers/Makefile | 1 +
drivers/axi/Kconfig | 30 +++
drivers/axi/Makefile | 5 +
drivers/axi/axi_pci_bridge.c | 33 +++
drivers/axi/axi_private.h | 45 ++++
drivers/axi/core.c | 52 ++++
drivers/axi/driver_chipcommon.c | 87 +++++++
drivers/axi/driver_chipcommon_pmu.c | 134 ++++++++++
drivers/axi/driver_pci.c | 191 ++++++++++++++
drivers/axi/host_pci.c | 177 +++++++++++++
drivers/axi/main.c | 256 +++++++++++++++++++
drivers/axi/scan.c | 393 +++++++++++++++++++++++++++++
drivers/axi/scan.h | 56 ++++
include/linux/axi/axi.h | 221 ++++++++++++++++
include/linux/axi/axi_driver_chipcommon.h | 308 ++++++++++++++++++++++
include/linux/axi/axi_driver_pci.h | 85 +++++++
include/linux/axi/axi_regs.h | 34 +++
include/linux/mod_devicetable.h | 17 ++
scripts/mod/file2alias.c | 21 ++
20 files changed, 2148 insertions(+), 0 deletions(-)
create mode 100644 drivers/axi/Kconfig
create mode 100644 drivers/axi/Makefile
create mode 100644 drivers/axi/axi_pci_bridge.c
create mode 100644 drivers/axi/axi_private.h
create mode 100644 drivers/axi/core.c
create mode 100644 drivers/axi/driver_chipcommon.c
create mode 100644 drivers/axi/driver_chipcommon_pmu.c
create mode 100644 drivers/axi/driver_pci.c
create mode 100644 drivers/axi/host_pci.c
create mode 100644 drivers/axi/main.c
create mode 100644 drivers/axi/scan.c
create mode 100644 drivers/axi/scan.h
create mode 100644 include/linux/axi/axi.h
create mode 100644 include/linux/axi/axi_driver_chipcommon.h
create mode 100644 include/linux/axi/axi_driver_pci.h
create mode 100644 include/linux/axi/axi_regs.h

diff --git a/drivers/Kconfig b/drivers/Kconfig
index 177c7d1..1244e8c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -68,6 +68,8 @@ source "drivers/watchdog/Kconfig"

source "drivers/ssb/Kconfig"

+source "drivers/axi/Kconfig"
+
source "drivers/mfd/Kconfig"

source "drivers/regulator/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 3f135b6..6e1979b 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -110,6 +110,7 @@ obj-$(CONFIG_HID) += hid/
obj-$(CONFIG_PPC_PS3) += ps3/
obj-$(CONFIG_OF) += of/
obj-$(CONFIG_SSB) += ssb/
+obj-$(CONFIG_AXI) += axi/
obj-$(CONFIG_VHOST_NET) += vhost/
obj-$(CONFIG_VLYNQ) += vlynq/
obj-$(CONFIG_STAGING) += staging/
diff --git a/drivers/axi/Kconfig b/drivers/axi/Kconfig
new file mode 100644
index 0000000..f4f58f5
--- /dev/null
+++ b/drivers/axi/Kconfig
@@ -0,0 +1,30 @@
+config AXI_POSSIBLE
+ bool
+ depends on HAS_IOMEM && HAS_DMA
+ default y
+
+menu "AMBA AXI"
+ depends on AXI_POSSIBLE
+
+config AXI
+ tristate "AXI support"
+ depends on AXI_POSSIBLE
+
+config AXI_HOST_PCI_POSSIBLE
+ bool
+ depends on AXI && PCI = y
+ default y
+
+config AXI_HOST_PCI
+ bool "Support for AI on PCI-host bus"
+ depends on AXI_HOST_PCI_POSSIBLE
+
+config AXI_DEBUG
+ bool "AXI debugging"
+ depends on AXI
+ help
+ This turns on additional debugging messages.
+
+ If unsure, say N
+
+endmenu
diff --git a/drivers/axi/Makefile b/drivers/axi/Makefile
new file mode 100644
index 0000000..e649c51
--- /dev/null
+++ b/drivers/axi/Makefile
@@ -0,0 +1,5 @@
+axi-y += main.o scan.o core.o
+axi-y += driver_chipcommon.o driver_chipcommon_pmu.o
+axi-y += driver_pci.o
+axi-$(CONFIG_AXI_HOST_PCI) += host_pci.o axi_pci_bridge.o
+obj-$(CONFIG_AXI) += axi.o
diff --git a/drivers/axi/axi_pci_bridge.c b/drivers/axi/axi_pci_bridge.c
new file mode 100644
index 0000000..7ecc59f
--- /dev/null
+++ b/drivers/axi/axi_pci_bridge.c
@@ -0,0 +1,33 @@
+/*
+ * AXI PCI bridge module
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "axi_private.h"
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+#include <linux/pci.h>
+
+static DEFINE_PCI_DEVICE_TABLE(axi_pci_bridge_tbl) = {
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, axi_pci_bridge_tbl);
+
+static struct pci_driver axi_pci_bridge_driver = {
+ .name = "axi-pci-bridge",
+ .id_table = axi_pci_bridge_tbl,
+};
+
+int __init axi_pci_bridge_init(void)
+{
+ return axi_host_pci_register(&axi_pci_bridge_driver);
+}
+
+void __exit axi_pci_bridge_exit(void)
+{
+ axi_host_pci_unregister(&axi_pci_bridge_driver);
+}
diff --git a/drivers/axi/axi_private.h b/drivers/axi/axi_private.h
new file mode 100644
index 0000000..1c995f5
--- /dev/null
+++ b/drivers/axi/axi_private.h
@@ -0,0 +1,45 @@
+#ifndef LINUX_AXI_PRIVATE_H_
+#define LINUX_AXI_PRIVATE_H_
+
+#include <linux/axi/axi.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/pci.h>
+#include <linux/mod_devicetable.h>
+#include <linux/dma-mapping.h>
+#include <linux/types.h>
+
+#ifndef pr_fmt
+#define pr_fmt(fmt) "axi: " fmt
+#endif
+
+#define AXI_ADDR_BASE 0x18000000
+#define AXI_WRAP_BASE 0x18100000
+
+#define AXI_CORE_SIZE 0x1000
+
+struct axi_bus;
+
+/* main.c */
+extern int axi_bus_register(struct axi_bus *bus);
+extern void axi_bus_unregister(struct axi_bus *bus);
+
+/* scan.c */
+int axi_bus_scan(struct axi_bus *bus);
+
+#ifdef CONFIG_AXI_HOST_PCI
+/* b43_pci_ai_bridge.c */
+extern int __init axi_pci_bridge_init(void);
+extern void __exit axi_pci_bridge_exit(void);
+
+/* host_pci.c */
+extern int axi_host_pci_register(struct pci_driver *driver);
+static inline void axi_host_pci_unregister(struct pci_driver *driver)
+{
+ pci_unregister_driver(driver);
+}
+#endif /* CONFIG_AXI_HOST_PCI */
+
+#endif
diff --git a/drivers/axi/core.c b/drivers/axi/core.c
new file mode 100644
index 0000000..378a615
--- /dev/null
+++ b/drivers/axi/core.c
@@ -0,0 +1,52 @@
+/*
+ * AMBA AXI
+ * Core ops
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "axi_private.h"
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+
+bool axi_core_is_enabled(struct axi_device *core)
+{
+ if ((axi_aread32(core, AXI_IOCTL) & (AXI_IOCTL_CLK | AXI_IOCTL_FGC)) != AXI_IOCTL_CLK)
+ return false;
+ if (axi_aread32(core, AXI_RESET_CTL) & AXI_RESET_CTL_RESET)
+ return false;
+ return true;
+}
+EXPORT_SYMBOL(axi_core_is_enabled);
+
+static void axi_core_disable(struct axi_device *core, u32 flags)
+{
+ if (axi_aread32(core, AXI_RESET_CTL) & AXI_RESET_CTL_RESET)
+ return;
+
+ axi_awrite32(core, AXI_IOCTL, flags);
+ axi_aread32(core, AXI_IOCTL);
+ udelay(10);
+
+ axi_awrite32(core, AXI_RESET_CTL, AXI_RESET_CTL_RESET);
+ udelay(1);
+}
+
+int axi_core_enable(struct axi_device *core, u32 flags)
+{
+ axi_core_disable(core, flags);
+
+ axi_awrite32(core, AXI_IOCTL, (AXI_IOCTL_CLK | AXI_IOCTL_FGC | flags));
+ axi_aread32(core, AXI_IOCTL);
+
+ axi_awrite32(core, AXI_RESET_CTL, 0);
+ udelay(1);
+
+ axi_awrite32(core, AXI_IOCTL, (AXI_IOCTL_CLK | flags));
+ axi_aread32(core, AXI_IOCTL);
+ udelay(1);
+
+ return 0;
+}
+EXPORT_SYMBOL(axi_core_enable);
diff --git a/drivers/axi/driver_chipcommon.c b/drivers/axi/driver_chipcommon.c
new file mode 100644
index 0000000..e1896bc
--- /dev/null
+++ b/drivers/axi/driver_chipcommon.c
@@ -0,0 +1,87 @@
+/*
+ * AMBA AXI
+ * ChipCommon core driver
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+
+static inline u32 axi_cc_write32_masked(struct axi_drv_cc *cc, u16 offset,
+ u32 mask, u32 value)
+{
+ value &= mask;
+ value |= axi_cc_read32(cc, offset) & ~mask;
+ axi_cc_write32(cc, offset, value);
+
+ return value;
+}
+
+void axi_core_chipcommon_init(struct axi_drv_cc *cc)
+{
+ if (cc->core->id.rev >= 11)
+ cc->status = axi_cc_read32(cc, AXI_CC_CHIPSTAT);
+ cc->capabilities = axi_cc_read32(cc, AXI_CC_CAP);
+ if (cc->core->id.rev >= 35)
+ cc->capabilities_ext = axi_cc_read32(cc, AXI_CC_CAP_EXT);
+
+ axi_cc_write32(cc, 0x58, 0);
+ axi_cc_write32(cc, 0x5C, 0);
+
+ if (cc->capabilities & AXI_CC_CAP_PMU)
+ axi_pmu_init(cc);
+ if (cc->capabilities & AXI_CC_CAP_PCTL)
+ axi_err("Power control not implemented!\n");
+}
+
+/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+void axi_chipco_watchdog_timer_set(struct axi_drv_cc *cc, u32 ticks)
+{
+ /* instant NMI */
+ axi_cc_write32(cc, AXI_CC_WATCHDOG, ticks);
+}
+
+void axi_chipco_irq_mask(struct axi_drv_cc *cc, u32 mask, u32 value)
+{
+ axi_cc_write32_masked(cc, AXI_CC_IRQMASK, mask, value);
+}
+
+u32 axi_chipco_irq_status(struct axi_drv_cc *cc, u32 mask)
+{
+ return axi_cc_read32(cc, AXI_CC_IRQSTAT) & mask;
+}
+
+u32 axi_chipco_gpio_in(struct axi_drv_cc *cc, u32 mask)
+{
+ return axi_cc_read32(cc, AXI_CC_GPIOIN) & mask;
+}
+
+u32 axi_chipco_gpio_out(struct axi_drv_cc *cc, u32 mask, u32 value)
+{
+ return axi_cc_write32_masked(cc, AXI_CC_GPIOOUT, mask, value);
+}
+
+u32 axi_chipco_gpio_outen(struct axi_drv_cc *cc, u32 mask, u32 value)
+{
+ return axi_cc_write32_masked(cc, AXI_CC_GPIOOUTEN, mask, value);
+}
+
+u32 xaxi_chipco_gpio_control(struct axi_drv_cc *cc, u32 mask, u32 value)
+{
+ return axi_cc_write32_masked(cc, AXI_CC_GPIOCTL, mask, value);
+}
+EXPORT_SYMBOL(xaxi_chipco_gpio_control);
+
+u32 axi_chipco_gpio_intmask(struct axi_drv_cc *cc, u32 mask, u32 value)
+{
+ return axi_cc_write32_masked(cc, AXI_CC_GPIOIRQ, mask, value);
+}
+
+u32 axi_chipco_gpio_polarity(struct axi_drv_cc *cc, u32 mask, u32 value)
+{
+ return axi_cc_write32_masked(cc, AXI_CC_GPIOPOL, mask, value);
+}
diff --git a/drivers/axi/driver_chipcommon_pmu.c b/drivers/axi/driver_chipcommon_pmu.c
new file mode 100644
index 0000000..cfc55aa
--- /dev/null
+++ b/drivers/axi/driver_chipcommon_pmu.c
@@ -0,0 +1,134 @@
+/*
+ * AMBA AXI
+ * ChipCommon Power Management Unit driver
+ *
+ * Copyright 2009, Michael Buesch <mb@bu3sch.de>
+ * Copyright 2007, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+
+static void axi_chipco_chipctl_maskset(struct axi_drv_cc *cc,
+ u32 offset, u32 mask, u32 set)
+{
+ u32 value;
+
+ axi_cc_read32(cc, AXI_CC_CHIPCTL_ADDR);
+ axi_cc_write32(cc, AXI_CC_CHIPCTL_ADDR, offset);
+ axi_cc_read32(cc, AXI_CC_CHIPCTL_ADDR);
+ value = axi_cc_read32(cc, AXI_CC_CHIPCTL_DATA);
+ value &= mask;
+ value |= set;
+ axi_cc_write32(cc, AXI_CC_CHIPCTL_DATA, value);
+ axi_cc_read32(cc, AXI_CC_CHIPCTL_DATA);
+}
+
+static void axi_pmu_pll_init(struct axi_drv_cc *cc)
+{
+ struct axi_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ case 0x4331:
+ case 43224:
+ case 43225:
+ break;
+ default:
+ axi_err("PLL init unknown for device 0x%04X\n",
+ bus->chipinfo.id);
+ }
+}
+
+static void axi_pmu_resources_init(struct axi_drv_cc *cc)
+{
+ struct axi_bus *bus = cc->core->bus;
+ u32 min_msk = 0, max_msk = 0;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ min_msk = 0x200D;
+ max_msk = 0xFFFF;
+ break;
+ case 43224:
+ break;
+ default:
+ axi_err("PMU resource config unknown for device 0x%04X\n",
+ bus->chipinfo.id);
+ }
+
+ /* Set the resource masks. */
+ if (min_msk)
+ axi_cc_write32(cc, AXI_CC_PMU_MINRES_MSK, min_msk);
+ if (max_msk)
+ axi_cc_write32(cc, AXI_CC_PMU_MAXRES_MSK, max_msk);
+}
+
+void axi_pmu_swreg_init(struct axi_drv_cc *cc)
+{
+ struct axi_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ case 0x4331:
+ case 43224:
+ break;
+ default:
+ axi_err("PMU switch/regulators init unknown for device "
+ "0x%04X\n", bus->chipinfo.id);
+ }
+}
+
+void axi_pmu_workarounds(struct axi_drv_cc *cc)
+{
+ struct axi_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ axi_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
+ break;
+ case 0x4331:
+ axi_err("Enabling Ext PA lines not implemented\n");
+ break;
+ case 43224:
+ if (bus->chipinfo.rev == 0) {
+ axi_err("Workarounds for 43224 rev 0 not fully "
+ "implemented\n");
+ axi_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
+ } else {
+ axi_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
+ }
+ break;
+ default:
+ axi_err("Workarounds unknown for device 0x%04X\n",
+ bus->chipinfo.id);
+ }
+}
+
+void axi_pmu_init(struct axi_drv_cc *cc)
+{
+ u32 pmucap;
+
+ pmucap = axi_cc_read32(cc, AXI_CC_PMU_CAP);
+ cc->pmu.rev = (pmucap & AXI_CC_PMU_CAP_REVISION);
+
+ axi_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
+ pmucap);
+
+ if (cc->pmu.rev == 1)
+ axi_cc_mask32(cc, AXI_CC_PMU_CTL,
+ ~AXI_CC_PMU_CTL_NOILPONW);
+ else
+ axi_cc_set32(cc, AXI_CC_PMU_CTL,
+ AXI_CC_PMU_CTL_NOILPONW);
+
+ if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
+ axi_err("Fix for 4329b0 bad LPOM state not implemented!\n");
+
+ axi_pmu_pll_init(cc);
+ axi_pmu_resources_init(cc);
+ axi_pmu_swreg_init(cc);
+ axi_pmu_workarounds(cc);
+}
diff --git a/drivers/axi/driver_pci.c b/drivers/axi/driver_pci.c
new file mode 100644
index 0000000..8b4d6ba
--- /dev/null
+++ b/drivers/axi/driver_pci.c
@@ -0,0 +1,191 @@
+/*
+ * AMBA AXI
+ * PCI Core
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/axi/axi_driver_pci.h>
+#include "axi_private.h"
+
+#include <linux/axi/axi.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+/**************************************************
+ * R/W ops.
+ **************************************************/
+
+static inline
+u32 pcicore_read32(struct axi_drv_pci *pc, u16 offset)
+{
+ return axi_read32(pc->core, offset);
+}
+
+static inline
+void pcicore_write32(struct axi_drv_pci *pc, u16 offset, u32 value)
+{
+ axi_write32(pc->core, offset, value);
+}
+
+static inline
+u16 pcicore_read16(struct axi_drv_pci *pc, u16 offset)
+{
+ return axi_read16(pc->core, offset);
+}
+
+static inline
+void pcicore_write16(struct axi_drv_pci *pc, u16 offset, u16 value)
+{
+ axi_write16(pc->core, offset, value);
+}
+
+static u32 axi_pcie_read(struct axi_drv_pci *pc, u32 address)
+{
+ pcicore_write32(pc, 0x130, address);
+ pcicore_read32(pc, 0x130);
+ return pcicore_read32(pc, 0x134);
+}
+
+#if 0
+static void axi_pcie_write(struct axi_drv_pci *pc, u32 address, u32 data)
+{
+ pcicore_write32(pc, 0x130, address);
+ pcicore_read32(pc, 0x130);
+ pcicore_write32(pc, 0x134, data);
+}
+#endif
+
+static void axi_pcie_mdio_set_phy(struct axi_drv_pci *pc, u8 phy)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ u32 v;
+ int i;
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 28); /* Write Transaction */
+ v |= (1 << 17); /* Turnaround */
+ v |= (0x1F << 18);
+ v |= (phy << 4);
+ pcicore_write32(pc, mdio_data, v);
+
+ udelay(10);
+ for (i = 0; i < 200; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */)
+ break;
+ msleep(1);
+ }
+}
+
+static u16 axi_pcie_mdio_read(struct axi_drv_pci *pc, u8 device, u8 address)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ int max_retries = 10;
+ u16 ret = 0;
+ u32 v;
+ int i;
+
+ v = 0x80; /* Enable Preamble Sequence */
+ v |= 0x2; /* MDIO Clock Divisor */
+ pcicore_write32(pc, mdio_control, v);
+
+ if (pc->core->id.rev >= 10) {
+ max_retries = 200;
+ axi_pcie_mdio_set_phy(pc, device);
+ }
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 29); /* Read Transaction */
+ v |= (1 << 17); /* Turnaround */
+ if (pc->core->id.rev < 10)
+ v |= (u32)device << 22;
+ v |= (u32)address << 18;
+ pcicore_write32(pc, mdio_data, v);
+ /* Wait for the device to complete the transaction */
+ udelay(10);
+ for (i = 0; i < 200; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */) {
+ udelay(10);
+ ret = pcicore_read32(pc, mdio_data);
+ break;
+ }
+ msleep(1);
+ }
+ pcicore_write32(pc, mdio_control, 0);
+ return ret;
+}
+
+static void axi_pcie_mdio_write(struct axi_drv_pci *pc, u8 device,
+ u8 address, u16 data)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ int max_retries = 10;
+ u32 v;
+ int i;
+
+ v = 0x80; /* Enable Preamble Sequence */
+ v |= 0x2; /* MDIO Clock Divisor */
+ pcicore_write32(pc, mdio_control, v);
+
+ if (pc->core->id.rev >= 10) {
+ max_retries = 200;
+ axi_pcie_mdio_set_phy(pc, device);
+ }
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 28); /* Write Transaction */
+ v |= (1 << 17); /* Turnaround */
+ if (pc->core->id.rev < 10)
+ v |= (u32)device << 22;
+ v |= (u32)address << 18;
+ v |= data;
+ pcicore_write32(pc, mdio_data, v);
+ /* Wait for the device to complete the transaction */
+ udelay(10);
+ for (i = 0; i < max_retries; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */)
+ break;
+ msleep(1);
+ }
+ pcicore_write32(pc, mdio_control, 0);
+}
+
+/**************************************************
+ * Workarounds.
+ **************************************************/
+
+static u8 axi_pcicore_polarity_workaround(struct axi_drv_pci *pc)
+{
+ return (axi_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80;
+}
+
+static void axi_pcicore_serdes_workaround(struct axi_drv_pci *pc)
+{
+ const u8 serdes_pll_device = 0x1D;
+ const u8 serdes_rx_device = 0x1F;
+ u16 tmp;
+
+ axi_pcie_mdio_write(pc, serdes_rx_device, 1 /* Control */,
+ axi_pcicore_polarity_workaround(pc));
+ tmp = axi_pcie_mdio_read(pc, serdes_pll_device, 1 /* Control */);
+ if (tmp & 0x4000)
+ axi_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000);
+}
+
+/**************************************************
+ * Init.
+ **************************************************/
+
+void axi_core_pci_init(struct axi_drv_pci *pc)
+{
+ axi_pcicore_serdes_workaround(pc);
+}
diff --git a/drivers/axi/host_pci.c b/drivers/axi/host_pci.c
new file mode 100644
index 0000000..51b1376
--- /dev/null
+++ b/drivers/axi/host_pci.c
@@ -0,0 +1,177 @@
+/*
+ * AMBA AXI
+ * PCI Host
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "axi_private.h"
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+
+static void axi_host_pci_switch_core(struct axi_device *core)
+{
+ pci_write_config_dword(core->bus->host_pci, AXI_PCI_BAR0_WIN,
+ core->addr);
+ pci_write_config_dword(core->bus->host_pci, AXI_PCI_BAR0_WIN2,
+ core->wrap);
+ core->bus->mapped_core = core;
+ axi_debug("Switched to core: 0x%X\n", core->id.id);
+}
+
+static u8 axi_host_pci_read8(struct axi_device *core, u16 offset)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ return ioread8(core->bus->mmio + offset);
+}
+
+static u16 axi_host_pci_read16(struct axi_device *core, u16 offset)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ return ioread16(core->bus->mmio + offset);
+}
+
+static u32 axi_host_pci_read32(struct axi_device *core, u16 offset)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ return ioread32(core->bus->mmio + offset);
+}
+
+static void axi_host_pci_write8(struct axi_device *core, u16 offset, u8 value)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ iowrite8(value, core->bus->mmio + offset);
+}
+
+static void axi_host_pci_write16(struct axi_device *core, u16 offset, u16 value)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ iowrite16(value, core->bus->mmio + offset);
+}
+
+static void axi_host_pci_write32(struct axi_device *core, u16 offset, u32 value)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ iowrite32(value, core->bus->mmio + offset);
+}
+
+static u32 axi_host_pci_aread32(struct axi_device *core, u16 offset)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ return ioread32(core->bus->mmio + (1 * AXI_CORE_SIZE) + offset);
+}
+
+static void axi_host_pci_awrite32(struct axi_device *core, u16 offset, u32 value)
+{
+ if (unlikely(core->bus->mapped_core != core))
+ axi_host_pci_switch_core(core);
+ iowrite32(value, core->bus->mmio + 0x1000 + offset);
+}
+
+const struct axi_host_ops axi_host_pci_ops = {
+ .read8 = axi_host_pci_read8,
+ .read16 = axi_host_pci_read16,
+ .read32 = axi_host_pci_read32,
+ .write8 = axi_host_pci_write8,
+ .write16 = axi_host_pci_write16,
+ .write32 = axi_host_pci_write32,
+ .aread32 = axi_host_pci_aread32,
+ .awrite32 = axi_host_pci_awrite32,
+};
+
+static int axi_host_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ struct axi_bus *bus;
+ int err = -ENOMEM;
+ const char *name;
+ u32 val;
+
+ /* Alloc */
+ bus = kzalloc(sizeof(*bus), GFP_KERNEL);
+ if (!bus)
+ goto out;
+
+ /* Basic PCI configuration */
+ err = pci_enable_device(dev);
+ if (err)
+ goto err_kfree_bus;
+
+ name = dev_name(&dev->dev);
+ if (dev->driver && dev->driver->name)
+ name = dev->driver->name;
+ err = pci_request_regions(dev, name);
+ if (err)
+ goto err_pci_disable;
+ pci_set_master(dev);
+
+ /* Disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_read_config_dword(dev, 0x40, &val);
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
+
+ /* SSB needed additional powering up, do we have any AI PCI cards? */
+ if (!pci_is_pcie(dev))
+ axi_err("PCI card detected, report problems.\n");
+
+ /* Map MMIO */
+ err = -ENOMEM;
+ bus->mmio = pci_iomap(dev, 0, ~0UL);
+ if (!bus->mmio)
+ goto err_pci_release_regions;
+
+ /* Host specific */
+ bus->host_pci = dev;
+ bus->hosttype = AXI_HOSTTYPE_PCI;
+ bus->ops = &axi_host_pci_ops;
+
+ /* Register */
+ err = axi_bus_register(bus);
+ if (err)
+ goto err_pci_unmap_mmio;
+
+ pci_set_drvdata(dev, bus);
+
+out:
+ return err;
+
+err_pci_unmap_mmio:
+ pci_iounmap(dev, bus->mmio);
+err_pci_release_regions:
+ pci_release_regions(dev);
+err_pci_disable:
+ pci_disable_device(dev);
+err_kfree_bus:
+ kfree(bus);
+ return err;
+}
+
+static void axi_host_pci_remove(struct pci_dev *dev)
+{
+ struct axi_bus *bus = pci_get_drvdata(dev);
+
+ axi_bus_unregister(bus);
+ pci_iounmap(dev, bus->mmio);
+ pci_release_regions(dev);
+ pci_disable_device(dev);
+ kfree(bus);
+ pci_set_drvdata(dev, NULL);
+}
+
+int axi_host_pci_register(struct pci_driver *driver)
+{
+ driver->probe = axi_host_pci_probe;
+ driver->remove = axi_host_pci_remove;
+
+ return pci_register_driver(driver);
+}
+EXPORT_SYMBOL(axi_host_pci_register);
diff --git a/drivers/axi/main.c b/drivers/axi/main.c
new file mode 100644
index 0000000..1392652
--- /dev/null
+++ b/drivers/axi/main.c
@@ -0,0 +1,256 @@
+/*
+ * AMBA AXI
+ * Bus subsystem
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "axi_private.h"
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+MODULE_DESCRIPTION("AMBA AXI driver");
+MODULE_LICENSE("GPL");
+
+static int axi_bus_match(struct device *dev, struct device_driver *drv);
+static int axi_device_probe(struct device *dev);
+static int axi_device_remove(struct device *dev);
+
+static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ return sprintf(buf, "0x%03X", core->id.manuf);
+}
+static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ return sprintf(buf, "0x%03X", core->id.id);
+}
+static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ return sprintf(buf, "0x%02X", core->id.rev);
+}
+static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ return sprintf(buf, "0x%X", core->id.class);
+}
+static struct device_attribute axi_device_attrs[] = {
+ __ATTR_RO(manuf),
+ __ATTR_RO(id),
+ __ATTR_RO(rev),
+ __ATTR_RO(class),
+ __ATTR_NULL,
+};
+
+static struct bus_type axi_bus_type = {
+ .name = "axi",
+ .match = axi_bus_match,
+ .probe = axi_device_probe,
+ .remove = axi_device_remove,
+ .dev_attrs = axi_device_attrs,
+};
+
+static struct axi_device *axi_find_core(struct axi_bus *bus, u16 coreid)
+{
+ u8 i;
+ for (i = 0; i < bus->nr_cores; i++) {
+ if (bus->cores[i].id.id == coreid)
+ return &bus->cores[i];
+ }
+ return NULL;
+}
+
+static void axi_release_core_dev(struct device *dev)
+{
+ kfree(dev);
+}
+
+static int axi_register_cores(struct axi_bus *bus)
+{
+ struct axi_device *core;
+ int i, err, dev_id = 0;
+
+ for (i = 0; i < bus->nr_cores; i++) {
+ core = &(bus->cores[i]);
+
+ /* We support that cores ourself */
+ switch (core->id.id) {
+ case AXI_CORE_CHIPCOMMON:
+ case AXI_CORE_PCI:
+ case AXI_CORE_PCIE:
+ continue;
+ }
+
+ core->dev.release = axi_release_core_dev;
+ core->dev.bus = &axi_bus_type;
+ dev_set_name(&core->dev, "axi%d:%d", 0/*bus->busnumber*/, dev_id);
+
+ switch (bus->hosttype) {
+ case AXI_HOSTTYPE_PCI:
+ core->dev.parent = &bus->host_pci->dev;
+ break;
+ case AXI_HOSTTYPE_NONE:
+ case AXI_HOSTTYPE_SDIO:
+ break;
+ }
+
+ err = device_register(&core->dev);
+ if (err) {
+ axi_err("Could not register dev for core 0x%03X\n",
+ core->id.id);
+ core->dev.release = NULL;
+ core->dev.bus = NULL;
+ core->dev.parent = NULL;
+ continue;
+ }
+ dev_id++;
+ }
+
+ return 0;
+}
+
+static void axi_unregister_cores(struct axi_bus *bus)
+{
+ struct axi_device *core;
+ int i;
+
+ for (i = 0; i < bus->nr_cores; i++) {
+ core = &(bus->cores[i]);
+ if (core->dev.bus)
+ device_unregister(&core->dev);
+ }
+}
+
+int axi_bus_register(struct axi_bus *bus)
+{
+ int err;
+ struct axi_device *core;
+
+ /* Scan for devices (cores) */
+ err = axi_bus_scan(bus);
+ if (err) {
+ axi_err("Failed to scan: %d\n", err);
+ return -1;
+ }
+
+ /* Init CC core */
+ core = axi_find_core(bus, AXI_CORE_CHIPCOMMON);
+ if (core) {
+ bus->drv_cc.core = core;
+ axi_core_chipcommon_init(&bus->drv_cc);
+ }
+
+ /* Init PCIE core */
+ core = axi_find_core(bus, AXI_CORE_PCIE);
+ if (core) {
+ bus->drv_pci.core = core;
+ axi_core_pci_init(&bus->drv_pci);
+ }
+
+ /* Register found cores */
+ axi_register_cores(bus);
+
+ axi_info("AXI registered");
+
+ return 0;
+}
+EXPORT_SYMBOL(axi_bus_register);
+
+void axi_bus_unregister(struct axi_bus *bus)
+{
+ axi_unregister_cores(bus);
+}
+EXPORT_SYMBOL(axi_bus_unregister);
+
+int __axi_driver_register(struct axi_driver *drv, struct module *owner)
+{
+ drv->drv.name = drv->name;
+ drv->drv.bus = &axi_bus_type;
+ drv->drv.owner = owner;
+
+ return driver_register(&drv->drv);
+}
+EXPORT_SYMBOL(__axi_driver_register);
+
+void axi_driver_unregister(struct axi_driver *drv)
+{
+ driver_unregister(&drv->drv);
+}
+EXPORT_SYMBOL(axi_driver_unregister);
+
+static int axi_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ struct axi_driver *adrv = container_of(drv, struct axi_driver, drv);
+ const struct axi_device_id *cid = &core->id;
+ const struct axi_device_id *did;
+
+ for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) {
+ if ((did->manuf == cid->manuf || did->manuf == AXI_ANY_MANUF) &&
+ (did->id == cid->id || did->id == AXI_ANY_ID) &&
+ (did->rev == cid->rev || did->rev == AXI_ANY_REV ) &&
+ (did->class == cid->class || did->class == AXI_ANY_CLASS ))
+ return 1;
+ }
+ return 0;
+}
+
+static int axi_device_probe(struct device *dev)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ struct axi_driver *adrv = container_of(dev->driver, struct axi_driver, drv);
+ int err = 0;
+
+ if (adrv->probe)
+ err = adrv->probe(core);
+
+ return err;
+}
+
+static int axi_device_remove(struct device *dev)
+{
+ struct axi_device *core = container_of(dev, struct axi_device, dev);
+ struct axi_driver *adrv = container_of(dev->driver, struct axi_driver, drv);
+
+ if (adrv->remove)
+ adrv->remove(core);
+
+ return 0;
+}
+
+static int __init axi_modinit(void)
+{
+ int err;
+
+ err = bus_register(&axi_bus_type);
+ if (err)
+ return err;
+
+#ifdef CONFIG_AXI_HOST_PCI
+ err = axi_pci_bridge_init();
+ if (err) {
+ axi_err("AXI PCI bridge initialization failed\n");
+ err = 0;
+ }
+#endif
+
+ return err;
+}
+fs_initcall(axi_modinit);
+
+static void __exit axi_modexit(void)
+{
+#ifdef CONFIG_AXI_HOST_PCI
+ axi_pci_bridge_exit();
+#endif
+ bus_unregister(&axi_bus_type);
+}
+module_exit(axi_modexit)
diff --git a/drivers/axi/scan.c b/drivers/axi/scan.c
new file mode 100644
index 0000000..7dd742c
--- /dev/null
+++ b/drivers/axi/scan.c
@@ -0,0 +1,393 @@
+/*
+ * AMBA AXI
+ * Bus scanning
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "scan.h"
+#include "axi_private.h"
+#include <linux/axi/axi_driver_chipcommon.h>
+
+#include <linux/axi/axi.h>
+#include <linux/axi/axi_regs.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+const char *axi_device_name(u16 coreid)
+{
+ switch (coreid) {
+ case AXI_CORE_OOB_ROUTER:
+ return "OOB Router";
+ case AXI_CORE_INVALID:
+ return "Invalid";
+ case AXI_CORE_CHIPCOMMON:
+ return "ChipCommon";
+ case AXI_CORE_ILINE20:
+ return "ILine 20";
+ case AXI_CORE_SRAM:
+ return "SRAM";
+ case AXI_CORE_SDRAM:
+ return "SDRAM";
+ case AXI_CORE_PCI:
+ return "PCI";
+ case AXI_CORE_MIPS:
+ return "MIPS";
+ case AXI_CORE_ETHERNET:
+ return "Fast Ethernet";
+ case AXI_CORE_V90:
+ return "V90";
+ case AXI_CORE_USB11_HOSTDEV:
+ return "USB 1.1 Hostdev";
+ case AXI_CORE_ADSL:
+ return "ADSL";
+ case AXI_CORE_ILINE100:
+ return "ILine 100";
+ case AXI_CORE_IPSEC:
+ return "IPSEC";
+ case AXI_CORE_UTOPIA:
+ return "UTOPIA";
+ case AXI_CORE_PCMCIA:
+ return "PCMCIA";
+ case AXI_CORE_INTERNAL_MEM:
+ return "Internal Memory";
+ case AXI_CORE_MEMC_SDRAM:
+ return "MEMC SDRAM";
+ case AXI_CORE_OFDM:
+ return "OFDM";
+ case AXI_CORE_EXTIF:
+ return "EXTIF";
+ case AXI_CORE_80211:
+ return "IEEE 802.11";
+ case AXI_CORE_PHY_A:
+ return "PHY A";
+ case AXI_CORE_PHY_B:
+ return "PHY B";
+ case AXI_CORE_PHY_G:
+ return "PHY G";
+ case AXI_CORE_MIPS_3302:
+ return "MIPS 3302";
+ case AXI_CORE_USB11_HOST:
+ return "USB 1.1 Host";
+ case AXI_CORE_USB11_DEV:
+ return "USB 1.1 Device";
+ case AXI_CORE_USB20_HOST:
+ return "USB 2.0 Host";
+ case AXI_CORE_USB20_DEV:
+ return "USB 2.0 Device";
+ case AXI_CORE_SDIO_HOST:
+ return "SDIO Host";
+ case AXI_CORE_ROBOSWITCH:
+ return "Roboswitch";
+ case AXI_CORE_PARA_ATA:
+ return "PATA";
+ case AXI_CORE_SATA_XORDMA:
+ return "SATA XOR-DMA";
+ case AXI_CORE_ETHERNET_GBIT:
+ return "GBit Ethernet";
+ case AXI_CORE_PCIE:
+ return "PCIe";
+ case AXI_CORE_PHY_N:
+ return "PHY N";
+ case AXI_CORE_SRAM_CTL:
+ return "SRAM Controller";
+ case AXI_CORE_MINI_MACPHY:
+ return "Mini MACPHY";
+ case AXI_CORE_ARM_1176:
+ return "ARM 1176";
+ case AXI_CORE_ARM_7TDMI:
+ return "ARM 7TDMI";
+ case AXI_CORE_PHY_LP:
+ return "PHY LP";
+ case AXI_CORE_PMU:
+ return "PMU";
+ case AXI_CORE_PHY_SSN:
+ return "PHY SSN";
+ case AXI_CORE_SDIO_DEV:
+ return "SDIO Device";
+ case AXI_CORE_ARM_CM3:
+ return "ARM CM3";
+ case AXI_CORE_PHY_HT:
+ return "PHY HT";
+ case AXI_CORE_MIPS_74K:
+ return "MIPS 74K";
+ case AXI_CORE_MAC_GBIT:
+ return "GBit MAC";
+ case AXI_CORE_DDR12_MEM_CTL:
+ return "DDR1/DDR2 Memory Controller";
+ case AXI_CORE_PCIE_RC:
+ return "PCIe Root Complex";
+ case AXI_CORE_OCP_OCP_BRIDGE:
+ return "OCP to OCP Bridge";
+ case AXI_CORE_SHARED_COMMON:
+ return "Common Shared";
+ case AXI_CORE_OCP_AHB_BRIDGE:
+ return "OCP to AHB Bridge";
+ case AXI_CORE_SPI_HOST:
+ return "SPI Host";
+ case AXI_CORE_I2S:
+ return "I2S";
+ case AXI_CORE_SDR_DDR1_MEM_CTL:
+ return "SDR/DDR1 Memory Controller";
+ case AXI_CORE_SHIM:
+ return "SHIM";
+ case AXI_CORE_DEFAULT:
+ return "Default";
+ }
+ return "UNKNOWN";
+}
+
+static u32 axi_scan_read32(struct axi_bus *bus, u8 current_coreidx,
+ u16 offset)
+{
+ return readl(bus->mmio + offset);
+}
+
+static void axi_scan_switch_core(struct axi_bus *bus, u32 addr)
+{
+ if (bus->hosttype == AXI_HOSTTYPE_PCI)
+ pci_write_config_dword(bus->host_pci, AXI_PCI_BAR0_WIN,
+ addr);
+}
+
+static u32 axi_erom_get_ent(struct axi_bus *bus, u32 **eromptr)
+{
+ u32 ent = readl(*eromptr);
+ (*eromptr)++;
+ return ent;
+}
+
+static void axi_erom_push_ent(u32 **eromptr)
+{
+ (*eromptr)--;
+}
+
+static s32 axi_erom_get_ci(struct axi_bus *bus, u32 **eromptr)
+{
+ u32 ent = axi_erom_get_ent(bus, eromptr);
+ if (!(ent & SCAN_ER_VALID))
+ return -1;
+ if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_CI)
+ return -2;
+ return ent;
+}
+
+static bool axi_erom_is_end(struct axi_bus *bus, u32 **eromptr)
+{
+ u32 ent = axi_erom_get_ent(bus, eromptr);
+ axi_erom_push_ent(eromptr);
+ return (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID));
+}
+
+static bool axi_erom_is_bridge(struct axi_bus *bus, u32 **eromptr)
+{
+ u32 ent = axi_erom_get_ent(bus, eromptr);
+ axi_erom_push_ent(eromptr);
+ return (((ent & SCAN_ER_VALID)) &&
+ ((ent & SCAN_ER_TAGX) == SCAN_ER_TAG_ADDR) &&
+ ((ent & SCAN_ADDR_TYPE) == SCAN_ADDR_TYPE_BRIDGE));
+}
+
+static void axi_erom_skip_component(struct axi_bus *bus, u32 **eromptr)
+{
+ u32 ent;
+ while (1) {
+ ent = axi_erom_get_ent(bus, eromptr);
+ if ((ent & SCAN_ER_VALID) && ((ent & SCAN_ER_TAG) == SCAN_ER_TAG_CI))
+ break;
+ if (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID))
+ break;
+ }
+ axi_erom_push_ent(eromptr);
+}
+
+static s32 axi_erom_get_mst_port(struct axi_bus *bus, u32 **eromptr)
+{
+ u32 ent = axi_erom_get_ent(bus, eromptr);
+ if (!(ent & SCAN_ER_VALID))
+ return -1;
+ if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_MP)
+ return -2;
+ return ent;
+}
+
+static s32 axi_erom_get_addr_desc(struct axi_bus *bus, u32 **eromptr,
+ u32 type, u8 port)
+{
+ u32 addrl, addrh, sizel, sizeh = 0;
+ u32 size;
+
+ u32 ent = axi_erom_get_ent(bus, eromptr);
+ if ((!(ent & SCAN_ER_VALID)) ||
+ ((ent & SCAN_ER_TAGX) != SCAN_ER_TAG_ADDR) ||
+ ((ent & SCAN_ADDR_TYPE) != type) ||
+ (((ent & SCAN_ADDR_PORT) >> SCAN_ADDR_PORT_SHIFT) != port)) {
+ axi_erom_push_ent(eromptr);
+ return -1;
+ }
+
+ addrl = ent & SCAN_ADDR_ADDR;
+ if (ent & SCAN_ADDR_AG32)
+ addrh = axi_erom_get_ent(bus, eromptr);
+ else
+ addrh = 0;
+
+ if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) {
+ size = axi_erom_get_ent(bus, eromptr);
+ sizel = size & SCAN_SIZE_SZ;
+ if (size & SCAN_SIZE_SG32)
+ sizeh = axi_erom_get_ent(bus, eromptr);
+ } else
+ sizel = SCAN_ADDR_SZ_BASE <<
+ ((ent & SCAN_ADDR_SZ) >> SCAN_ADDR_SZ_SHIFT);
+
+ return addrl;
+}
+
+int axi_bus_scan(struct axi_bus *bus)
+{
+ u32 erombase;
+ u32 __iomem *eromptr, *eromend;
+
+ s32 cia, cib;
+ u8 ports[2], wrappers[2];
+
+ s32 tmp;
+ u8 i, j;
+
+ bus->nr_cores = 0;
+
+ axi_scan_switch_core(bus, AXI_ADDR_BASE);
+
+ tmp = axi_scan_read32(bus, 0, AXI_CC_ID);
+ bus->chipinfo.id = (tmp & AXI_CC_ID_ID) >> AXI_CC_ID_ID_SHIFT;
+ bus->chipinfo.rev = (tmp & AXI_CC_ID_REV) >> AXI_CC_ID_REV_SHIFT;
+ bus->chipinfo.pkg = (tmp & AXI_CC_ID_PKG) >> AXI_CC_ID_PKG_SHIFT;
+
+ erombase = axi_scan_read32(bus, 0, AXI_CC_EROM);
+ eromptr = bus->mmio;
+ eromend = eromptr + AXI_CORE_SIZE / sizeof(u32);
+
+ axi_scan_switch_core(bus, erombase);
+
+ while (eromptr < eromend) {
+ struct axi_device core;
+ core.bus = bus;
+
+ /* get CIs */
+ cia = axi_erom_get_ci(bus, &eromptr);
+ if (cia < 0) {
+ axi_erom_push_ent(&eromptr);
+ if (axi_erom_is_end(bus, &eromptr))
+ break;
+ return -1;
+ }
+ cib = axi_erom_get_ci(bus, &eromptr);
+ if (cib < 0)
+ return -2;
+
+ /* parse CIs */
+ core.id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT;
+ core.id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT;
+ core.id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT;
+ ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT;
+ ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT;
+ wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT;
+ wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT;
+ core.id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT;
+
+ if (((core.id.manuf == AXI_MANUF_ARM) &&
+ (core.id.id == 0xFFF)) ||
+ (ports[1] == 0)) {
+ axi_erom_skip_component(bus, &eromptr);
+ continue;
+ }
+
+ /* check if component is a core at all */
+ if (wrappers[0] + wrappers[1] == 0) {
+ /* we could save addrl of the router
+ if (cid == AXI_CORE_OOB_ROUTER)
+ */
+ axi_erom_skip_component(bus, &eromptr);
+ continue;
+ }
+
+ if (axi_erom_is_bridge(bus, &eromptr)) {
+ axi_erom_skip_component(bus, &eromptr);
+ continue;
+ }
+
+ /* get & parse master ports */
+ for (i = 0; i < ports[0]; i++) {
+ u32 mst_port_d = axi_erom_get_mst_port(bus, &eromptr);
+ if (mst_port_d < 0)
+ return -3;
+ }
+
+ /* get & parse slave ports */
+ for (i = 0; i < ports[1]; i++) {
+ for (j = 0; ; j++) {
+ tmp = axi_erom_get_addr_desc(bus, &eromptr,
+ SCAN_ADDR_TYPE_SLAVE, i);
+ if (tmp < 0) {
+ /* not more entries for port _i_ */
+ /* axi_debug("erom: slave port %d "
+ * "has %d descriptors\n", i, j); */
+ break;
+ } else {
+ if (i == 0 && j == 0)
+ core.addr = tmp;
+ }
+ }
+ }
+
+ /* get & parse master wrappers */
+ for (i = 0; i < wrappers[0]; i++) {
+ for (j = 0; ; j++) {
+ tmp = axi_erom_get_addr_desc(bus, &eromptr,
+ SCAN_ADDR_TYPE_MWRAP, i);
+ if (tmp < 0) {
+ /* there are not more entries for port _i_ */
+ /* axi_dbg("erom: master wrapper %d "
+ * "has %d descriptors\n", i, j); */
+ break;
+ } else {
+ if (i == 0 && j == 0)
+ core.wrap = tmp;
+ }
+ }
+ }
+
+ /* get & parse slave wrappers */
+ for (i = 0; i < wrappers[1]; i++) {
+ u8 hack = (ports[1] == 1) ? 0 : 1;
+ for (j = 0; ; j++) {
+ tmp = axi_erom_get_addr_desc(bus, &eromptr,
+ SCAN_ADDR_TYPE_SWRAP, i + hack);
+ if (tmp < 0) {
+ /* there are not more entries for port _i_ */
+ /* axi_dbg("erom: master wrapper %d "
+ * has %d descriptors\n", i, j); */
+ break;
+ } else {
+ if (wrappers[0] == 0 && !i && !j)
+ core.wrap = tmp;
+ }
+ }
+ }
+
+ axi_info("Core %d found: %s "
+ "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
+ bus->nr_cores, axi_device_name(core.id.id),
+ core.id.manuf, core.id.id, core.id.rev,
+ core.id.class);
+
+ core.core_index = bus->nr_cores;
+ bus->cores[bus->nr_cores++] = core;
+ }
+
+ return 0;
+}
diff --git a/drivers/axi/scan.h b/drivers/axi/scan.h
new file mode 100644
index 0000000..91056f6
--- /dev/null
+++ b/drivers/axi/scan.h
@@ -0,0 +1,56 @@
+#ifndef AXI_SCAN_H_
+#define AXI_SCAN_H_
+
+#define AXI_ADDR_BASE 0x18000000
+#define AXI_WRAP_BASE 0x18100000
+
+#define SCAN_ER_VALID 0x00000001
+#define SCAN_ER_TAGX 0x00000006 /* we have to ignore 0x8 bit when checking tag for SCAN_ER_TAG_ADDR */
+#define SCAN_ER_TAG 0x0000000E
+#define SCAN_ER_TAG_CI 0x00000000
+#define SCAN_ER_TAG_MP 0x00000002
+#define SCAN_ER_TAG_ADDR 0x00000004
+#define SCAN_ER_TAG_END 0x0000000E
+#define SCAN_ER_BAD 0xFFFFFFFF
+
+#define SCAN_CIA_CLASS 0x000000F0
+#define SCAN_CIA_CLASS_SHIFT 4
+#define SCAN_CIA_ID 0x000FFF00
+#define SCAN_CIA_ID_SHIFT 8
+#define SCAN_CIA_MANUF 0xFFF00000
+#define SCAN_CIA_MANUF_SHIFT 20
+
+#define SCAN_CIB_NMP 0x000001F0
+#define SCAN_CIB_NMP_SHIFT 4
+#define SCAN_CIB_NSP 0x00003E00
+#define SCAN_CIB_NSP_SHIFT 9
+#define SCAN_CIB_NMW 0x0007C000
+#define SCAN_CIB_NMW_SHIFT 14
+#define SCAN_CIB_NSW 0x00F80000
+#define SCAN_CIB_NSW_SHIFT 17
+#define SCAN_CIB_REV 0xFF000000
+#define SCAN_CIB_REV_SHIFT 24
+
+#define SCAN_ADDR_AG32 0x00000008
+#define SCAN_ADDR_SZ 0x00000030
+#define SCAN_ADDR_SZ_SHIFT 4
+#define SCAN_ADDR_SZ_4K 0x00000000
+#define SCAN_ADDR_SZ_8K 0x00000010
+#define SCAN_ADDR_SZ_16K 0x00000020
+#define SCAN_ADDR_SZ_SZD 0x00000030
+#define SCAN_ADDR_TYPE 0x000000C0
+#define SCAN_ADDR_TYPE_SLAVE 0x00000000
+#define SCAN_ADDR_TYPE_BRIDGE 0x00000040
+#define SCAN_ADDR_TYPE_SWRAP 0x00000080
+#define SCAN_ADDR_TYPE_MWRAP 0x000000C0
+#define SCAN_ADDR_PORT 0x00000F00
+#define SCAN_ADDR_PORT_SHIFT 8
+#define SCAN_ADDR_ADDR 0xFFFFF000
+
+#define SCAN_ADDR_SZ_BASE 0x00001000 /* 4KB */
+
+#define SCAN_SIZE_SZ_ALIGN 0x00000FFF
+#define SCAN_SIZE_SZ 0xFFFFF000
+#define SCAN_SIZE_SG32 0x00000008
+
+#endif /* AXI_SCAN_H_ */
diff --git a/include/linux/axi/axi.h b/include/linux/axi/axi.h
new file mode 100644
index 0000000..4baa92e
--- /dev/null
+++ b/include/linux/axi/axi.h
@@ -0,0 +1,221 @@
+#ifndef LINUX_AXI_H_
+#define LINUX_AXI_H_
+
+#include <linux/types.h>
+#include <linux/axi/axi_driver_chipcommon.h>
+#include <linux/axi/axi_driver_pci.h>
+
+#define axi_info pr_info
+#ifdef CONFIG_AXI_DEBUG
+#define axi_debug pr_debug
+#else
+#define axi_debug do { } while (0)
+#endif
+#define axi_err pr_err
+
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/pci.h>
+#include <linux/mod_devicetable.h>
+#include <linux/dma-mapping.h>
+
+#include "axi_regs.h"
+
+struct axi_device;
+struct axi_bus;
+
+enum axi_hosttype {
+ AXI_HOSTTYPE_NONE,
+ AXI_HOSTTYPE_PCI,
+ AXI_HOSTTYPE_SDIO,
+};
+
+struct axi_chipinfo {
+ u16 id;
+ u8 rev;
+ u8 pkg;
+};
+
+struct axi_host_ops {
+ u8 (*read8)(struct axi_device *core, u16 offset);
+ u16 (*read16)(struct axi_device *core, u16 offset);
+ u32 (*read32)(struct axi_device *core, u16 offset);
+ void (*write8)(struct axi_device *core, u16 offset, u8 value);
+ void (*write16)(struct axi_device *core, u16 offset, u16 value);
+ void (*write32)(struct axi_device *core, u16 offset, u32 value);
+ /* Agent ops */
+ u32 (*aread32)(struct axi_device *core, u16 offset);
+ void (*awrite32)(struct axi_device *core, u16 offset, u32 value);
+};
+
+#define AXI_MANUF_ARM 0x43B
+#define AXI_MANUF_MIPS 0x4A7
+#define AXI_MANUF_BCM 0x4BF
+
+/* Core-ID values. */
+#define AXI_CORE_OOB_ROUTER 0x367 /* Out of band */
+#define AXI_CORE_INVALID 0x700
+#define AXI_CORE_CHIPCOMMON 0x800
+#define AXI_CORE_ILINE20 0x801
+#define AXI_CORE_SRAM 0x802
+#define AXI_CORE_SDRAM 0x803
+#define AXI_CORE_PCI 0x804
+#define AXI_CORE_MIPS 0x805
+#define AXI_CORE_ETHERNET 0x806
+#define AXI_CORE_V90 0x807
+#define AXI_CORE_USB11_HOSTDEV 0x808
+#define AXI_CORE_ADSL 0x809
+#define AXI_CORE_ILINE100 0x80A
+#define AXI_CORE_IPSEC 0x80B
+#define AXI_CORE_UTOPIA 0x80C
+#define AXI_CORE_PCMCIA 0x80D
+#define AXI_CORE_INTERNAL_MEM 0x80E
+#define AXI_CORE_MEMC_SDRAM 0x80F
+#define AXI_CORE_OFDM 0x810
+#define AXI_CORE_EXTIF 0x811
+#define AXI_CORE_80211 0x812
+#define AXI_CORE_PHY_A 0x813
+#define AXI_CORE_PHY_B 0x814
+#define AXI_CORE_PHY_G 0x815
+#define AXI_CORE_MIPS_3302 0x816
+#define AXI_CORE_USB11_HOST 0x817
+#define AXI_CORE_USB11_DEV 0x818
+#define AXI_CORE_USB20_HOST 0x819
+#define AXI_CORE_USB20_DEV 0x81A
+#define AXI_CORE_SDIO_HOST 0x81B
+#define AXI_CORE_ROBOSWITCH 0x81C
+#define AXI_CORE_PARA_ATA 0x81D
+#define AXI_CORE_SATA_XORDMA 0x81E
+#define AXI_CORE_ETHERNET_GBIT 0x81F
+#define AXI_CORE_PCIE 0x820
+#define AXI_CORE_PHY_N 0x821
+#define AXI_CORE_SRAM_CTL 0x822
+#define AXI_CORE_MINI_MACPHY 0x823
+#define AXI_CORE_ARM_1176 0x824
+#define AXI_CORE_ARM_7TDMI 0x825
+#define AXI_CORE_PHY_LP 0x826
+#define AXI_CORE_PMU 0x827
+#define AXI_CORE_PHY_SSN 0x828
+#define AXI_CORE_SDIO_DEV 0x829
+#define AXI_CORE_ARM_CM3 0x82A
+#define AXI_CORE_PHY_HT 0x82B
+#define AXI_CORE_MIPS_74K 0x82C
+#define AXI_CORE_MAC_GBIT 0x82D
+#define AXI_CORE_DDR12_MEM_CTL 0x82E
+#define AXI_CORE_PCIE_RC 0x82F /* PCIe Root Complex */
+#define AXI_CORE_OCP_OCP_BRIDGE 0x830
+#define AXI_CORE_SHARED_COMMON 0x831
+#define AXI_CORE_OCP_AHB_BRIDGE 0x832
+#define AXI_CORE_SPI_HOST 0x833
+#define AXI_CORE_I2S 0x834
+#define AXI_CORE_SDR_DDR1_MEM_CTL 0x835 /* SDR/DDR1 memory controller core */
+#define AXI_CORE_SHIM 0x837 /* SHIM component in ubus/6362 */
+#define AXI_CORE_DEFAULT 0xFFF
+
+#define AXI_MAX_NR_CORES 16
+
+struct axi_device {
+ struct device dev;
+
+ struct axi_bus *bus;
+ struct axi_device_id id;
+
+ u8 core_index;
+
+ u32 addr;
+ u32 wrap;
+
+ void *drvdata;
+};
+
+static inline void *axi_get_drvdata(struct axi_device *core)
+{
+ return core->drvdata;
+}
+static inline void axi_set_drvdata(struct axi_device *core, void *drvdata)
+{
+ core->drvdata = drvdata;
+}
+
+struct axi_driver {
+ const char *name;
+ const struct axi_device_id *id_table;
+
+ int (*probe)(struct axi_device *dev);
+ void (*remove)(struct axi_device *dev);
+ int (*suspend)(struct axi_device *dev, pm_message_t state);
+ int (*resume)(struct axi_device *dev);
+ void (*shutdown)(struct axi_device *dev);
+
+ struct device_driver drv;
+};
+extern int __axi_driver_register(struct axi_driver *drv, struct module *owner);
+static inline int axi_driver_register(struct axi_driver *drv)
+{
+ return __axi_driver_register(drv, THIS_MODULE);
+}
+extern void axi_driver_unregister(struct axi_driver *drv);
+
+struct axi_bus {
+ /* The MMIO area. */
+ void __iomem *mmio;
+
+ const struct axi_host_ops *ops;
+
+ enum axi_hosttype hosttype;
+ union {
+ /* Pointer to the PCI bus (only for AXI_HOSTTYPE_PCI) */
+ struct pci_dev *host_pci;
+ /* Pointer to the SDIO device (only for AXI_HOSTTYPE_SDIO) */
+ struct sdio_func *host_sdio;
+ };
+
+ struct axi_chipinfo chipinfo;
+
+ struct axi_device *mapped_core;
+ struct axi_device cores[AXI_MAX_NR_CORES];
+ u8 nr_cores;
+
+ struct axi_drv_cc drv_cc;
+ struct axi_drv_pci drv_pci;
+};
+
+extern inline u32 axi_read8(struct axi_device *core, u16 offset)
+{
+ return core->bus->ops->read8(core, offset);
+}
+extern inline u32 axi_read16(struct axi_device *core, u16 offset)
+{
+ return core->bus->ops->read16(core, offset);
+}
+extern inline u32 axi_read32(struct axi_device *core, u16 offset)
+{
+ return core->bus->ops->read32(core, offset);
+}
+extern inline void axi_write8(struct axi_device *core, u16 offset, u32 value)
+{
+ core->bus->ops->write8(core, offset, value);
+}
+extern inline void axi_write16(struct axi_device *core, u16 offset, u32 value)
+{
+ core->bus->ops->write16(core, offset, value);
+}
+extern inline void axi_write32(struct axi_device *core, u16 offset, u32 value)
+{
+ core->bus->ops->write32(core, offset, value);
+}
+extern inline u32 axi_aread32(struct axi_device *core, u16 offset)
+{
+ return core->bus->ops->aread32(core, offset);
+}
+extern inline void axi_awrite32(struct axi_device *core, u16 offset, u32 value)
+{
+ core->bus->ops->awrite32(core, offset, value);
+}
+
+extern bool axi_core_is_enabled(struct axi_device *core);
+extern int axi_core_enable(struct axi_device *core, u32 flags);
+
+#endif /* LINUX_AXI_H_ */
diff --git a/include/linux/axi/axi_driver_chipcommon.h b/include/linux/axi/axi_driver_chipcommon.h
new file mode 100644
index 0000000..b5faa60
--- /dev/null
+++ b/include/linux/axi/axi_driver_chipcommon.h
@@ -0,0 +1,308 @@
+#ifndef LINUX_AXI_DRIVER_CC_H_
+#define LINUX_AXI_DRIVER_CC_H_
+
+/* SonicsSiliconBackplane CHIPCOMMON core hardware definitions
+ *
+ * The chipcommon core provides chip identification, SB control,
+ * jtag, 0/1/2 uarts, clock frequency control, a watchdog interrupt timer,
+ * gpio interface, extbus, and support for serial and parallel flashes.
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GPL version 2. See COPYING for details.
+ */
+
+/** ChipCommon core registers. **/
+
+#define AXI_CC_ID 0x0000
+#define AXI_CC_ID_ID 0x0000FFFF
+#define AXI_CC_ID_ID_SHIFT 0
+#define AXI_CC_ID_REV 0x000F0000
+#define AXI_CC_ID_REV_SHIFT 16
+#define AXI_CC_ID_PKG 0x00F00000
+#define AXI_CC_ID_PKG_SHIFT 20
+#define AXI_CC_ID_NRCORES 0x0F000000
+#define AXI_CC_ID_NRCORES_SHIFT 24
+#define AXI_CC_ID_TYPE 0xF0000000
+#define AXI_CC_ID_TYPE_SHIFT 28
+#define AXI_CC_CAP 0x0004 /* Capabilities */
+#define AXI_CC_CAP_NRUART 0x00000003 /* # of UARTs */
+#define AXI_CC_CAP_MIPSEB 0x00000004 /* MIPS in BigEndian Mode */
+#define AXI_CC_CAP_UARTCLK 0x00000018 /* UART clock select */
+#define AXI_CC_CAP_UARTCLK_INT 0x00000008 /* UARTs are driven by internal divided clock */
+#define AXI_CC_CAP_UARTGPIO 0x00000020 /* UARTs on GPIO 15-12 */
+#define AXI_CC_CAP_EXTBUS 0x000000C0 /* External buses present */
+#define AXI_CC_CAP_FLASHT 0x00000700 /* Flash Type */
+#define AXI_CC_FLASHT_NONE 0x00000000 /* No flash */
+#define AXI_CC_FLASHT_STSER 0x00000100 /* ST serial flash */
+#define AXI_CC_FLASHT_ATSER 0x00000200 /* Atmel serial flash */
+#define AXI_CC_FLASHT_PARA 0x00000700 /* Parallel flash */
+#define AXI_CC_CAP_PLLT 0x00038000 /* PLL Type */
+#define AXI_PLLTYPE_NONE 0x00000000
+#define AXI_PLLTYPE_1 0x00010000 /* 48Mhz base, 3 dividers */
+#define AXI_PLLTYPE_2 0x00020000 /* 48Mhz, 4 dividers */
+#define AXI_PLLTYPE_3 0x00030000 /* 25Mhz, 2 dividers */
+#define AXI_PLLTYPE_4 0x00008000 /* 48Mhz, 4 dividers */
+#define AXI_PLLTYPE_5 0x00018000 /* 25Mhz, 4 dividers */
+#define AXI_PLLTYPE_6 0x00028000 /* 100/200 or 120/240 only */
+#define AXI_PLLTYPE_7 0x00038000 /* 25Mhz, 4 dividers */
+#define AXI_CC_CAP_PCTL 0x00040000 /* Power Control */
+#define AXI_CC_CAP_OTPS 0x00380000 /* OTP size */
+#define AXI_CC_CAP_OTPS_SHIFT 19
+#define AXI_CC_CAP_OTPS_BASE 5
+#define AXI_CC_CAP_JTAGM 0x00400000 /* JTAG master present */
+#define AXI_CC_CAP_BROM 0x00800000 /* Internal boot ROM active */
+#define AXI_CC_CAP_64BIT 0x08000000 /* 64-bit Backplane */
+#define AXI_CC_CAP_PMU 0x10000000 /* PMU available (rev >= 20) */
+#define AXI_CC_CAP_ECI 0x20000000 /* ECI available (rev >= 20) */
+#define AXI_CC_CAP_SPROM 0x40000000 /* SPROM present */
+#define AXI_CC_CORECTL 0x0008
+#define AXI_CC_CORECTL_UARTCLK0 0x00000001 /* Drive UART with internal clock */
+#define AXI_CC_CORECTL_SE 0x00000002 /* sync clk out enable (corerev >= 3) */
+#define AXI_CC_CORECTL_UARTCLKEN 0x00000008 /* UART clock enable (rev >= 21) */
+#define AXI_CC_BIST 0x000C
+#define AXI_CC_OTPS 0x0010 /* OTP status */
+#define AXI_CC_OTPS_PROGFAIL 0x80000000
+#define AXI_CC_OTPS_PROTECT 0x00000007
+#define AXI_CC_OTPS_HW_PROTECT 0x00000001
+#define AXI_CC_OTPS_SW_PROTECT 0x00000002
+#define AXI_CC_OTPS_CID_PROTECT 0x00000004
+#define AXI_CC_OTPC 0x0014 /* OTP control */
+#define AXI_CC_OTPC_RECWAIT 0xFF000000
+#define AXI_CC_OTPC_PROGWAIT 0x00FFFF00
+#define AXI_CC_OTPC_PRW_SHIFT 8
+#define AXI_CC_OTPC_MAXFAIL 0x00000038
+#define AXI_CC_OTPC_VSEL 0x00000006
+#define AXI_CC_OTPC_SELVL 0x00000001
+#define AXI_CC_OTPP 0x0018 /* OTP prog */
+#define AXI_CC_OTPP_COL 0x000000FF
+#define AXI_CC_OTPP_ROW 0x0000FF00
+#define AXI_CC_OTPP_ROW_SHIFT 8
+#define AXI_CC_OTPP_READERR 0x10000000
+#define AXI_CC_OTPP_VALUE 0x20000000
+#define AXI_CC_OTPP_READ 0x40000000
+#define AXI_CC_OTPP_START 0x80000000
+#define AXI_CC_OTPP_BUSY 0x80000000
+#define AXI_CC_IRQSTAT 0x0020
+#define AXI_CC_IRQMASK 0x0024
+#define AXI_CC_IRQ_GPIO 0x00000001 /* gpio intr */
+#define AXI_CC_IRQ_EXT 0x00000002 /* ro: ext intr pin (corerev >= 3) */
+#define AXI_CC_IRQ_WDRESET 0x80000000 /* watchdog reset occurred */
+#define AXI_CC_CHIPCTL 0x0028 /* Rev >= 11 only */
+#define AXI_CC_CHIPSTAT 0x002C /* Rev >= 11 only */
+#define AXI_CC_JCMD 0x0030 /* Rev >= 10 only */
+#define AXI_CC_JCMD_START 0x80000000
+#define AXI_CC_JCMD_BUSY 0x80000000
+#define AXI_CC_JCMD_PAUSE 0x40000000
+#define AXI_CC_JCMD0_ACC_MASK 0x0000F000
+#define AXI_CC_JCMD0_ACC_IRDR 0x00000000
+#define AXI_CC_JCMD0_ACC_DR 0x00001000
+#define AXI_CC_JCMD0_ACC_IR 0x00002000
+#define AXI_CC_JCMD0_ACC_RESET 0x00003000
+#define AXI_CC_JCMD0_ACC_IRPDR 0x00004000
+#define AXI_CC_JCMD0_ACC_PDR 0x00005000
+#define AXI_CC_JCMD0_IRW_MASK 0x00000F00
+#define AXI_CC_JCMD_ACC_MASK 0x000F0000 /* Changes for corerev 11 */
+#define AXI_CC_JCMD_ACC_IRDR 0x00000000
+#define AXI_CC_JCMD_ACC_DR 0x00010000
+#define AXI_CC_JCMD_ACC_IR 0x00020000
+#define AXI_CC_JCMD_ACC_RESET 0x00030000
+#define AXI_CC_JCMD_ACC_IRPDR 0x00040000
+#define AXI_CC_JCMD_ACC_PDR 0x00050000
+#define AXI_CC_JCMD_IRW_MASK 0x00001F00
+#define AXI_CC_JCMD_IRW_SHIFT 8
+#define AXI_CC_JCMD_DRW_MASK 0x0000003F
+#define AXI_CC_JIR 0x0034 /* Rev >= 10 only */
+#define AXI_CC_JDR 0x0038 /* Rev >= 10 only */
+#define AXI_CC_JCTL 0x003C /* Rev >= 10 only */
+#define AXI_CC_JCTL_FORCE_CLK 4 /* Force clock */
+#define AXI_CC_JCTL_EXT_EN 2 /* Enable external targets */
+#define AXI_CC_JCTL_EN 1 /* Enable Jtag master */
+#define AXI_CC_FLASHCTL 0x0040
+#define AXI_CC_FLASHCTL_START 0x80000000
+#define AXI_CC_FLASHCTL_BUSY AXI_CC_FLASHCTL_START
+#define AXI_CC_FLASHADDR 0x0044
+#define AXI_CC_FLASHDATA 0x0048
+#define AXI_CC_BCAST_ADDR 0x0050
+#define AXI_CC_BCAST_DATA 0x0054
+#define AXI_CC_GPIOIN 0x0060
+#define AXI_CC_GPIOOUT 0x0064
+#define AXI_CC_GPIOOUTEN 0x0068
+#define AXI_CC_GPIOCTL 0x006C
+#define AXI_CC_GPIOPOL 0x0070
+#define AXI_CC_GPIOIRQ 0x0074
+#define AXI_CC_WATCHDOG 0x0080
+#define AXI_CC_GPIOTIMER 0x0088 /* LED powersave (corerev >= 16) */
+#define AXI_CC_GPIOTIMER_ONTIME_SHIFT 16
+#define AXI_CC_GPIOTOUTM 0x008C /* LED powersave (corerev >= 16) */
+#define AXI_CC_CLOCK_N 0x0090
+#define AXI_CC_CLOCK_SB 0x0094
+#define AXI_CC_CLOCK_PCI 0x0098
+#define AXI_CC_CLOCK_M2 0x009C
+#define AXI_CC_CLOCK_MIPS 0x00A0
+#define AXI_CC_CLKDIV 0x00A4 /* Rev >= 3 only */
+#define AXI_CC_CLKDIV_SFLASH 0x0F000000
+#define AXI_CC_CLKDIV_SFLASH_SHIFT 24
+#define AXI_CC_CLKDIV_OTP 0x000F0000
+#define AXI_CC_CLKDIV_OTP_SHIFT 16
+#define AXI_CC_CLKDIV_JTAG 0x00000F00
+#define AXI_CC_CLKDIV_JTAG_SHIFT 8
+#define AXI_CC_CLKDIV_UART 0x000000FF
+#define AXI_CC_CAP_EXT 0x00AC /* Capabilities */
+#define AXI_CC_PLLONDELAY 0x00B0 /* Rev >= 4 only */
+#define AXI_CC_FREFSELDELAY 0x00B4 /* Rev >= 4 only */
+#define AXI_CC_SLOWCLKCTL 0x00B8 /* 6 <= Rev <= 9 only */
+#define AXI_CC_SLOWCLKCTL_SRC 0x00000007 /* slow clock source mask */
+#define AXI_CC_SLOWCLKCTL_SRC_LPO 0x00000000 /* source of slow clock is LPO */
+#define AXI_CC_SLOWCLKCTL_SRC_XTAL 0x00000001 /* source of slow clock is crystal */
+#define AXI_CC_SLOECLKCTL_SRC_PCI 0x00000002 /* source of slow clock is PCI */
+#define AXI_CC_SLOWCLKCTL_LPOFREQ 0x00000200 /* LPOFreqSel, 1: 160Khz, 0: 32KHz */
+#define AXI_CC_SLOWCLKCTL_LPOPD 0x00000400 /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */
+#define AXI_CC_SLOWCLKCTL_FSLOW 0x00000800 /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */
+#define AXI_CC_SLOWCLKCTL_IPLL 0x00001000 /* IgnorePllOffReq, 1/0: power logic ignores/honors PLL clock disable requests from core */
+#define AXI_CC_SLOWCLKCTL_ENXTAL 0x00002000 /* XtalControlEn, 1/0: power logic does/doesn't disable crystal when appropriate */
+#define AXI_CC_SLOWCLKCTL_XTALPU 0x00004000 /* XtalPU (RO), 1/0: crystal running/disabled */
+#define AXI_CC_SLOWCLKCTL_CLKDIV 0xFFFF0000 /* ClockDivider (SlowClk = 1/(4+divisor)) */
+#define AXI_CC_SLOWCLKCTL_CLKDIV_SHIFT 16
+#define AXI_CC_SYSCLKCTL 0x00C0 /* Rev >= 3 only */
+#define AXI_CC_SYSCLKCTL_IDLPEN 0x00000001 /* ILPen: Enable Idle Low Power */
+#define AXI_CC_SYSCLKCTL_ALPEN 0x00000002 /* ALPen: Enable Active Low Power */
+#define AXI_CC_SYSCLKCTL_PLLEN 0x00000004 /* ForcePLLOn */
+#define AXI_CC_SYSCLKCTL_FORCEALP 0x00000008 /* Force ALP (or HT if ALPen is not set */
+#define AXI_CC_SYSCLKCTL_FORCEHT 0x00000010 /* Force HT */
+#define AXI_CC_SYSCLKCTL_CLKDIV 0xFFFF0000 /* ClkDiv (ILP = 1/(4+divisor)) */
+#define AXI_CC_SYSCLKCTL_CLKDIV_SHIFT 16
+#define AXI_CC_CLKSTSTR 0x00C4 /* Rev >= 3 only */
+#define AXI_CC_EROM 0x00FC
+#define AXI_CC_PCMCIA_CFG 0x0100
+#define AXI_CC_PCMCIA_MEMWAIT 0x0104
+#define AXI_CC_PCMCIA_ATTRWAIT 0x0108
+#define AXI_CC_PCMCIA_IOWAIT 0x010C
+#define AXI_CC_IDE_CFG 0x0110
+#define AXI_CC_IDE_MEMWAIT 0x0114
+#define AXI_CC_IDE_ATTRWAIT 0x0118
+#define AXI_CC_IDE_IOWAIT 0x011C
+#define AXI_CC_PROG_CFG 0x0120
+#define AXI_CC_PROG_WAITCNT 0x0124
+#define AXI_CC_FLASH_CFG 0x0128
+#define AXI_CC_FLASH_WAITCNT 0x012C
+#define AXI_CC_CLKCTLST 0x01E0 /* Clock control and status (rev >= 20) */
+#define AXI_CC_CLKCTLST_FORCEALP 0x00000001 /* Force ALP request */
+#define AXI_CC_CLKCTLST_FORCEHT 0x00000002 /* Force HT request */
+#define AXI_CC_CLKCTLST_FORCEILP 0x00000004 /* Force ILP request */
+#define AXI_CC_CLKCTLST_HAVEALPREQ 0x00000008 /* ALP available request */
+#define AXI_CC_CLKCTLST_HAVEHTREQ 0x00000010 /* HT available request */
+#define AXI_CC_CLKCTLST_HWCROFF 0x00000020 /* Force HW clock request off */
+#define AXI_CC_CLKCTLST_HAVEHT 0x00010000 /* HT available */
+#define AXI_CC_CLKCTLST_HAVEALP 0x00020000 /* APL available */
+#define AXI_CC_HW_WORKAROUND 0x01E4 /* Hardware workaround (rev >= 20) */
+#define AXI_CC_UART0_DATA 0x0300
+#define AXI_CC_UART0_IMR 0x0304
+#define AXI_CC_UART0_FCR 0x0308
+#define AXI_CC_UART0_LCR 0x030C
+#define AXI_CC_UART0_MCR 0x0310
+#define AXI_CC_UART0_LSR 0x0314
+#define AXI_CC_UART0_MSR 0x0318
+#define AXI_CC_UART0_SCRATCH 0x031C
+#define AXI_CC_UART1_DATA 0x0400
+#define AXI_CC_UART1_IMR 0x0404
+#define AXI_CC_UART1_FCR 0x0408
+#define AXI_CC_UART1_LCR 0x040C
+#define AXI_CC_UART1_MCR 0x0410
+#define AXI_CC_UART1_LSR 0x0414
+#define AXI_CC_UART1_MSR 0x0418
+#define AXI_CC_UART1_SCRATCH 0x041C
+/* PMU registers (rev >= 20) */
+#define AXI_CC_PMU_CTL 0x0600 /* PMU control */
+#define AXI_CC_PMU_CTL_ILP_DIV 0xFFFF0000 /* ILP div mask */
+#define AXI_CC_PMU_CTL_ILP_DIV_SHIFT 16
+#define AXI_CC_PMU_CTL_NOILPONW 0x00000200 /* No ILP on wait */
+#define AXI_CC_PMU_CTL_HTREQEN 0x00000100 /* HT req enable */
+#define AXI_CC_PMU_CTL_ALPREQEN 0x00000080 /* ALP req enable */
+#define AXI_CC_PMU_CTL_XTALFREQ 0x0000007C /* Crystal freq */
+#define AXI_CC_PMU_CTL_XTALFREQ_SHIFT 2
+#define AXI_CC_PMU_CTL_ILPDIVEN 0x00000002 /* ILP div enable */
+#define AXI_CC_PMU_CTL_LPOSEL 0x00000001 /* LPO sel */
+#define AXI_CC_PMU_CAP 0x0604 /* PMU capabilities */
+#define AXI_CC_PMU_CAP_REVISION 0x000000FF /* Revision mask */
+#define AXI_CC_PMU_STAT 0x0608 /* PMU status */
+#define AXI_CC_PMU_STAT_INTPEND 0x00000040 /* Interrupt pending */
+#define AXI_CC_PMU_STAT_SBCLKST 0x00000030 /* Backplane clock status? */
+#define AXI_CC_PMU_STAT_HAVEALP 0x00000008 /* ALP available */
+#define AXI_CC_PMU_STAT_HAVEHT 0x00000004 /* HT available */
+#define AXI_CC_PMU_STAT_RESINIT 0x00000003 /* Res init */
+#define AXI_CC_PMU_RES_STAT 0x060C /* PMU res status */
+#define AXI_CC_PMU_RES_PEND 0x0610 /* PMU res pending */
+#define AXI_CC_PMU_TIMER 0x0614 /* PMU timer */
+#define AXI_CC_PMU_MINRES_MSK 0x0618 /* PMU min res mask */
+#define AXI_CC_PMU_MAXRES_MSK 0x061C /* PMU max res mask */
+#define AXI_CC_PMU_RES_TABSEL 0x0620 /* PMU res table sel */
+#define AXI_CC_PMU_RES_DEPMSK 0x0624 /* PMU res dep mask */
+#define AXI_CC_PMU_RES_UPDNTM 0x0628 /* PMU res updown timer */
+#define AXI_CC_PMU_RES_TIMER 0x062C /* PMU res timer */
+#define AXI_CC_PMU_CLKSTRETCH 0x0630 /* PMU clockstretch */
+#define AXI_CC_PMU_WATCHDOG 0x0634 /* PMU watchdog */
+#define AXI_CC_PMU_RES_REQTS 0x0640 /* PMU res req timer sel */
+#define AXI_CC_PMU_RES_REQT 0x0644 /* PMU res req timer */
+#define AXI_CC_PMU_RES_REQM 0x0648 /* PMU res req mask */
+#define AXI_CC_CHIPCTL_ADDR 0x0650
+#define AXI_CC_CHIPCTL_DATA 0x0654
+#define AXI_CC_REGCTL_ADDR 0x0658
+#define AXI_CC_REGCTL_DATA 0x065C
+#define AXI_CC_PLLCTL_ADDR 0x0660
+#define AXI_CC_PLLCTL_DATA 0x0664
+
+/* Data for the PMU, if available.
+ * Check availability with ((struct axi_chipcommon)->capabilities & AXI_CC_CAP_PMU)
+ */
+struct axi_chipcommon_pmu {
+ u8 rev; /* PMU revision */
+ u32 crystalfreq; /* The active crystal frequency (in kHz) */
+};
+
+struct axi_drv_cc {
+ struct axi_device *core;
+ u32 status;
+ u32 capabilities;
+ u32 capabilities_ext;
+ /* Fast Powerup Delay constant */
+ u16 fast_pwrup_delay;
+ struct axi_chipcommon_pmu pmu;
+};
+
+/* Register access */
+#define axi_cc_read32(cc, offset) axi_read32((cc)->core, offset)
+#define axi_cc_write32(cc, offset, val) axi_write32((cc)->core, offset, val)
+
+#define axi_cc_mask32(cc, offset, mask) \
+ axi_cc_write32(cc, offset, axi_cc_read32(cc, offset) & (mask))
+#define axi_cc_set32(cc, offset, set) \
+ axi_cc_write32(cc, offset, axi_cc_read32(cc, offset) | (set))
+#define axi_cc_maskset32(cc, offset, mask, set) \
+ axi_cc_write32(cc, offset, (axi_cc_read32(cc, offset) & (mask)) | (set))
+
+extern void axi_core_chipcommon_init(struct axi_drv_cc *cc);
+
+extern void axi_chipco_suspend(struct axi_drv_cc *cc);
+extern void axi_chipco_resume(struct axi_drv_cc *cc);
+
+extern void axi_chipco_watchdog_timer_set(struct axi_drv_cc *cc,
+ u32 ticks);
+
+void axi_chipco_irq_mask(struct axi_drv_cc *cc, u32 mask, u32 value);
+
+u32 axi_chipco_irq_status(struct axi_drv_cc *cc, u32 mask);
+
+/* Chipcommon GPIO pin access. */
+u32 axi_chipco_gpio_in(struct axi_drv_cc *cc, u32 mask);
+u32 axi_chipco_gpio_out(struct axi_drv_cc *cc, u32 mask, u32 value);
+u32 axi_chipco_gpio_outen(struct axi_drv_cc *cc, u32 mask, u32 value);
+u32 axi_chipco_gpio_control(struct axi_drv_cc *cc, u32 mask, u32 value);
+u32 axi_chipco_gpio_intmask(struct axi_drv_cc *cc, u32 mask, u32 value);
+u32 axi_chipco_gpio_polarity(struct axi_drv_cc *cc, u32 mask, u32 value);
+
+/* PMU support */
+extern void axi_pmu_init(struct axi_drv_cc *cc);
+
+#endif /* LINUX_AXI_DRIVER_CC_H_ */
diff --git a/include/linux/axi/axi_driver_pci.h b/include/linux/axi/axi_driver_pci.h
new file mode 100644
index 0000000..0661176
--- /dev/null
+++ b/include/linux/axi/axi_driver_pci.h
@@ -0,0 +1,85 @@
+#ifndef LINUX_AXI_DRIVER_PCI_H_
+#define LINUX_AXI_DRIVER_PCI_H_
+
+#include <linux/types.h>
+
+struct pci_dev;
+
+/* PCI core registers. */
+#define AXI_CORE_PCI_CTL 0x0000 /* PCI Control */
+#define AXI_CORE_PCI_CTL_RST_OE 0x00000001 /* PCI_RESET Output Enable */
+#define AXI_CORE_PCI_CTL_RST 0x00000002 /* PCI_RESET driven out to pin */
+#define AXI_CORE_PCI_CTL_CLK_OE 0x00000004 /* Clock gate Output Enable */
+#define AXI_CORE_PCI_CTL_CLK 0x00000008 /* Gate for clock driven out to pin */
+#define AXI_CORE_PCI_ARBCTL 0x0010 /* PCI Arbiter Control */
+#define AXI_CORE_PCI_ARBCTL_INTERN 0x00000001 /* Use internal arbiter */
+#define AXI_CORE_PCI_ARBCTL_EXTERN 0x00000002 /* Use external arbiter */
+#define AXI_CORE_PCI_ARBCTL_PARKID 0x00000006 /* Mask, selects which agent is parked on an idle bus */
+#define AXI_CORE_PCI_ARBCTL_PARKID_LAST 0x00000000 /* Last requestor */
+#define AXI_CORE_PCI_ARBCTL_PARKID_4710 0x00000002 /* 4710 */
+#define AXI_CORE_PCI_ARBCTL_PARKID_EXT0 0x00000004 /* External requestor 0 */
+#define AXI_CORE_PCI_ARBCTL_PARKID_EXT1 0x00000006 /* External requestor 1 */
+#define AXI_CORE_PCI_ISTAT 0x0020 /* Interrupt status */
+#define AXI_CORE_PCI_ISTAT_INTA 0x00000001 /* PCI INTA# */
+#define AXI_CORE_PCI_ISTAT_INTB 0x00000002 /* PCI INTB# */
+#define AXI_CORE_PCI_ISTAT_SERR 0x00000004 /* PCI SERR# (write to clear) */
+#define AXI_CORE_PCI_ISTAT_PERR 0x00000008 /* PCI PERR# (write to clear) */
+#define AXI_CORE_PCI_ISTAT_PME 0x00000010 /* PCI PME# */
+#define AXI_CORE_PCI_IMASK 0x0024 /* Interrupt mask */
+#define AXI_CORE_PCI_IMASK_INTA 0x00000001 /* PCI INTA# */
+#define AXI_CORE_PCI_IMASK_INTB 0x00000002 /* PCI INTB# */
+#define AXI_CORE_PCI_IMASK_SERR 0x00000004 /* PCI SERR# */
+#define AXI_CORE_PCI_IMASK_PERR 0x00000008 /* PCI PERR# */
+#define AXI_CORE_PCI_IMASK_PME 0x00000010 /* PCI PME# */
+#define AXI_CORE_PCI_MBOX 0x0028 /* Backplane to PCI Mailbox */
+#define AXI_CORE_PCI_MBOX_F0_0 0x00000100 /* PCI function 0, INT 0 */
+#define AXI_CORE_PCI_MBOX_F0_1 0x00000200 /* PCI function 0, INT 1 */
+#define AXI_CORE_PCI_MBOX_F1_0 0x00000400 /* PCI function 1, INT 0 */
+#define AXI_CORE_PCI_MBOX_F1_1 0x00000800 /* PCI function 1, INT 1 */
+#define AXI_CORE_PCI_MBOX_F2_0 0x00001000 /* PCI function 2, INT 0 */
+#define AXI_CORE_PCI_MBOX_F2_1 0x00002000 /* PCI function 2, INT 1 */
+#define AXI_CORE_PCI_MBOX_F3_0 0x00004000 /* PCI function 3, INT 0 */
+#define AXI_CORE_PCI_MBOX_F3_1 0x00008000 /* PCI function 3, INT 1 */
+#define AXI_CORE_PCI_BCAST_ADDR 0x0050 /* Backplane Broadcast Address */
+#define AXI_CORE_PCI_BCAST_ADDR_MASK 0x000000FF
+#define AXI_CORE_PCI_BCAST_DATA 0x0054 /* Backplane Broadcast Data */
+#define AXI_CORE_PCI_GPIO_IN 0x0060 /* rev >= 2 only */
+#define AXI_CORE_PCI_GPIO_OUT 0x0064 /* rev >= 2 only */
+#define AXI_CORE_PCI_GPIO_ENABLE 0x0068 /* rev >= 2 only */
+#define AXI_CORE_PCI_GPIO_CTL 0x006C /* rev >= 2 only */
+#define AXI_CORE_PCI_SBTOPCI0 0x0100 /* Backplane to PCI translation 0 (sbtopci0) */
+#define AXI_CORE_PCI_SBTOPCI0_MASK 0xFC000000
+#define AXI_CORE_PCI_SBTOPCI1 0x0104 /* Backplane to PCI translation 1 (sbtopci1) */
+#define AXI_CORE_PCI_SBTOPCI1_MASK 0xFC000000
+#define AXI_CORE_PCI_SBTOPCI2 0x0108 /* Backplane to PCI translation 2 (sbtopci2) */
+#define AXI_CORE_PCI_SBTOPCI2_MASK 0xC0000000
+#define AXI_CORE_PCI_PCICFG0 0x0400 /* PCI config space 0 (rev >= 8) */
+#define AXI_CORE_PCI_PCICFG1 0x0500 /* PCI config space 1 (rev >= 8) */
+#define AXI_CORE_PCI_PCICFG2 0x0600 /* PCI config space 2 (rev >= 8) */
+#define AXI_CORE_PCI_PCICFG3 0x0700 /* PCI config space 3 (rev >= 8) */
+#define AXI_CORE_PCI_SPROM(wordoffset) (0x0800 + ((wordoffset) * 2)) /* SPROM shadow area (72 bytes) */
+
+/* SBtoPCIx */
+#define AXI_CORE_PCI_SBTOPCI_MEM 0x00000000
+#define AXI_CORE_PCI_SBTOPCI_IO 0x00000001
+#define AXI_CORE_PCI_SBTOPCI_CFG0 0x00000002
+#define AXI_CORE_PCI_SBTOPCI_CFG1 0x00000003
+#define AXI_CORE_PCI_SBTOPCI_PREF 0x00000004 /* Prefetch enable */
+#define AXI_CORE_PCI_SBTOPCI_BURST 0x00000008 /* Burst enable */
+#define AXI_CORE_PCI_SBTOPCI_MRM 0x00000020 /* Memory Read Multiple */
+#define AXI_CORE_PCI_SBTOPCI_RC 0x00000030 /* Read Command mask (rev >= 11) */
+#define AXI_CORE_PCI_SBTOPCI_RC_READ 0x00000000 /* Memory read */
+#define AXI_CORE_PCI_SBTOPCI_RC_READL 0x00000010 /* Memory read line */
+#define AXI_CORE_PCI_SBTOPCI_RC_READM 0x00000020 /* Memory read multiple */
+
+/* PCIcore specific boardflags */
+#define AXI_CORE_PCI_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */
+
+struct axi_drv_pci {
+ struct axi_device *core;
+ u8 setup_done:1;
+};
+
+extern void axi_core_pci_init(struct axi_drv_pci *pc);
+
+#endif /* LINUX_AXI_DRIVER_PCI_H_ */
diff --git a/include/linux/axi/axi_regs.h b/include/linux/axi/axi_regs.h
new file mode 100644
index 0000000..3bfb1d0
--- /dev/null
+++ b/include/linux/axi/axi_regs.h
@@ -0,0 +1,34 @@
+#ifndef LINUX_AXI_REGS_H_
+#define LINUX_AXI_REGS_H_
+
+/* Agent registers (common for every core) */
+#define AXI_IOCTL 0x0408
+#define AXI_IOCTL_CORE_BITS 0x3FFC
+#define AXI_IOCTL_CLK 0x0001
+#define AXI_IOCTL_FGC 0x0002
+#define AXI_IOCTL_PME_EN 0x4000
+#define AXI_IOCTL_BIST_EN 0x8000
+#define AXI_RESET_CTL 0x0800
+#define AXI_RESET_CTL_RESET 0x0001
+
+/* AXI PCI config space registers. */
+#define AXI_PCI_PMCSR 0x44
+#define AXI_PCI_PE 0x100
+#define AXI_PCI_BAR0_WIN 0x80 /* Backplane address space 0 */
+#define AXI_PCI_BAR1_WIN 0x84 /* Backplane address space 1 */
+#define AXI_PCI_SPROMCTL 0x88 /* SPROM control */
+#define AXI_PCI_SPROMCTL_WE 0x10 /* SPROM write enable */
+#define AXI_PCI_BAR1_CONTROL 0x8c /* Address space 1 burst control */
+#define AXI_PCI_IRQS 0x90 /* PCI interrupts */
+#define AXI_PCI_IRQMASK 0x94 /* PCI IRQ control and mask (pcirev >= 6 only) */
+#define AXI_PCI_BACKPLANE_IRQS 0x98 /* Backplane Interrupts */
+#define AXI_PCI_BAR0_WIN2 0xAC
+#define AXI_PCI_GPIO_IN 0xB0 /* GPIO Input (pcirev >= 3 only) */
+#define AXI_PCI_GPIO_OUT 0xB4 /* GPIO Output (pcirev >= 3 only) */
+#define AXI_PCI_GPIO_OUT_ENABLE 0xB8 /* GPIO Output Enable/Disable (pcirev >= 3 only) */
+#define AXI_PCI_GPIO_SCS 0x10 /* PCI config space bit 4 for 4306c0 slow clock source */
+#define AXI_PCI_GPIO_HWRAD 0x20 /* PCI config space GPIO 13 for hw radio disable */
+#define AXI_PCI_GPIO_XTAL 0x40 /* PCI config space GPIO 14 for Xtal powerup */
+#define AXI_PCI_GPIO_PLL 0x80 /* PCI config space GPIO 15 for PLL powerdown */
+
+#endif /* LINUX_AXI_REGS_H_ */
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 48c007d..b3b6424 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -382,6 +382,23 @@ struct ssb_device_id {
#define SSB_ANY_ID 0xFFFF
#define SSB_ANY_REV 0xFF

+/* AMBA AXI core, see drivers/axi/ */
+struct axi_device_id {
+ __u16 manuf;
+ __u16 id;
+ __u8 rev;
+ __u8 class;
+};
+#define AXI_CORE(_manuf, _id, _rev, _class) \
+ { .manuf = _manuf, .id = _id, .rev = _rev, .class = _class, }
+#define AXI_CORETABLE_END \
+ { 0, },
+
+#define AXI_ANY_MANUF 0xFFFF
+#define AXI_ANY_ID 0xFFFF
+#define AXI_ANY_REV 0xFF
+#define AXI_ANY_CLASS 0xFF
+
struct virtio_device_id {
__u32 device;
__u32 vendor;
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 88f3f07..d9eebd0 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -702,6 +702,23 @@ static int do_ssb_entry(const char *filename,
return 1;
}

+/* Looks like: axi:mNidNrevNclN. */
+static int do_axi_entry(const char *filename,
+ struct axi_device_id *id, char *alias)
+{
+ id->manuf = TO_NATIVE(id->manuf);
+ id->id = TO_NATIVE(id->id);
+ id->rev = TO_NATIVE(id->rev);
+
+ strcpy(alias, "axi:");
+ ADD(alias, "m", id->manuf != AXI_ANY_MANUF, id->manuf);
+ ADD(alias, "id", id->id != AXI_ANY_ID, id->id);
+ ADD(alias, "rev", id->rev != AXI_ANY_REV, id->rev);
+ ADD(alias, "cl", id->class != AXI_ANY_CLASS, id->class);
+ add_wildcard(alias);
+ return 1;
+}
+
/* Looks like: virtio:dNvN */
static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
char *alias)
@@ -968,6 +985,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
do_table(symval, sym->st_size,
sizeof(struct ssb_device_id), "ssb",
do_ssb_entry, mod);
+ else if (sym_is(symname, "__mod_axi_device_table"))
+ do_table(symval, sym->st_size,
+ sizeof(struct axi_device_id), "axi",
+ do_axi_entry, mod);
else if (sym_is(symname, "__mod_virtio_device_table"))
do_table(symval, sym->st_size,
sizeof(struct virtio_device_id), "virtio",
--
1.7.3.4