diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
index d9f99e7deb83..c1414cb81fd4 100644
--- a/arch/arm/boot/dts/keystone.dtsi
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -66,9 +66,21 @@
ranges = <0x0 0x0 0x0 0xc0000000>;
dma-ranges = <0x80000000 0x8 0x00000000 0x80000000>;
+ pllctrl: pll-controller@02310000 {
+ compatible = "ti,keystone-pllctrl", "syscon";
+ reg = <0x02310000 0x200>;
+ };
+
+ devctrl: device-state-control@02620000 {
+ compatible = "ti,keystone-devctrl", "syscon";
+ reg = <0x02620000 0x1000>;
+ };
+
rstctrl: reset-controller {
compatible = "ti,keystone-reset";
- reg = <0x023100e8 4>; /* pll reset control reg */
+ ti,syscon-pll = <&pllctrl 0xe4>;
+ ti,syscon-dev = <&devctrl 0x328>;
+ ti,wdt-list = <0>;
};
/include/ "keystone-clocks.dtsi"
diff --git a/arch/arm/configs/integrator_defconfig b/arch/arm/configs/integrator_defconfig
index 5bae19557591..c1f5adc5493e 100644
--- a/arch/arm/configs/integrator_defconfig
+++ b/arch/arm/configs/integrator_defconfig
@@ -73,7 +73,6 @@ CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PL030=y
-CONFIG_COMMON_CLK_DEBUG=y
CONFIG_EXT2_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
index 095bb52671f6..932ae40fb128 100644
--- a/arch/arm/configs/keystone_defconfig
+++ b/arch/arm/configs/keystone_defconfig
@@ -112,6 +112,7 @@ CONFIG_MTD_PLATRAM=y
CONFIG_MTD_M25P80=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_DAVINCI=y
+CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_UBI=y
CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_LOOP=y
@@ -131,6 +132,9 @@ CONFIG_SPI=y
CONFIG_SPI_DAVINCI=y
CONFIG_SPI_SPIDEV=y
# CONFIG_HWMON is not set
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_KEYSTONE=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
CONFIG_DAVINCI_WATCHDOG=y
@@ -145,7 +149,6 @@ CONFIG_USB_DWC3_VERBOSE=y
CONFIG_KEYSTONE_USB_PHY=y
CONFIG_DMADEVICES=y
CONFIG_TI_EDMA=y
-CONFIG_COMMON_CLK_DEBUG=y
CONFIG_MEMORY=y
CONFIG_TI_AEMIF=y
CONFIG_EXT4_FS=y
diff --git a/arch/arm/configs/vt8500_v6_v7_defconfig b/arch/arm/configs/vt8500_v6_v7_defconfig
index f0520176acd0..9e7a25639690 100644
--- a/arch/arm/configs/vt8500_v6_v7_defconfig
+++ b/arch/arm/configs/vt8500_v6_v7_defconfig
@@ -73,7 +73,6 @@ CONFIG_LEDS_TRIGGERS=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VT8500=y
CONFIG_DMADEVICES=y
-CONFIG_COMMON_CLK_DEBUG=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PWM=y
CONFIG_PWM_VT8500=y
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index e0b9e1b9cf30..7f352de26099 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -14,60 +14,100 @@
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
+#include <linux/memblock.h>
#include <asm/setup.h>
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/smp_plat.h>
+#include <asm/memory.h>
+
+#include "memory.h"
#include "keystone.h"
-#define PLL_RESET_WRITE_KEY_MASK 0xffff0000
-#define PLL_RESET_WRITE_KEY 0x5a69
-#define PLL_RESET BIT(16)
+static struct notifier_block platform_nb;
+static unsigned long keystone_dma_pfn_offset __read_mostly;
-static void __iomem *keystone_rstctrl;
+static int keystone_platform_notifier(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct device *dev = data;
+
+ if (event != BUS_NOTIFY_ADD_DEVICE)
+ return NOTIFY_DONE;
+
+ if (!dev)
+ return NOTIFY_BAD;
+
+ if (!dev->of_node) {
+ dev->dma_pfn_offset = keystone_dma_pfn_offset;
+ dev_err(dev, "set dma_pfn_offset%08lx\n",
+ dev->dma_pfn_offset);
+ }
+ return NOTIFY_OK;
+}
static void __init keystone_init(void)
{
- struct device_node *node;
-
- node = of_find_compatible_node(NULL, NULL, "ti,keystone-reset");
- if (WARN_ON(!node))
- pr_warn("ti,keystone-reset node undefined\n");
-
- keystone_rstctrl = of_iomap(node, 0);
- if (WARN_ON(!keystone_rstctrl))
- pr_warn("ti,keystone-reset iomap error\n");
-
keystone_pm_runtime_init();
+ if (platform_nb.notifier_call)
+ bus_register_notifier(&platform_bus_type, &platform_nb);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
+static phys_addr_t keystone_virt_to_idmap(unsigned long x)
+{
+ return (phys_addr_t)(x) - CONFIG_PAGE_OFFSET + KEYSTONE_LOW_PHYS_START;
+}
+
+static void __init keystone_init_meminfo(void)
+{
+ bool lpae = IS_ENABLED(CONFIG_ARM_LPAE);
+ bool pvpatch = IS_ENABLED(CONFIG_ARM_PATCH_PHYS_VIRT);
+ phys_addr_t offset = PHYS_OFFSET - KEYSTONE_LOW_PHYS_START;
+ phys_addr_t mem_start, mem_end;
+
+ mem_start = memblock_start_of_DRAM();
+ mem_end = memblock_end_of_DRAM();
+
+ /* nothing to do if we are running out of the <32-bit space */
+ if (mem_start >= KEYSTONE_LOW_PHYS_START &&
+ mem_end <= KEYSTONE_LOW_PHYS_END)
+ return;
+
+ if (!lpae || !pvpatch) {
+ pr_crit("Enable %s%s%s to run outside 32-bit space\n",
+ !lpae ? __stringify(CONFIG_ARM_LPAE) : "",
+ (!lpae && !pvpatch) ? " and " : "",
+ !pvpatch ? __stringify(CONFIG_ARM_PATCH_PHYS_VIRT) : "");
+ }
+
+ if (mem_start < KEYSTONE_HIGH_PHYS_START ||
+ mem_end > KEYSTONE_HIGH_PHYS_END) {
+ pr_crit("Invalid address space for memory (%08llx-%08llx)\n",
+ (u64)mem_start, (u64)mem_end);
+ }
+
+ offset += KEYSTONE_HIGH_PHYS_START;
+ __pv_phys_pfn_offset = PFN_DOWN(offset);
+ __pv_offset = (offset - PAGE_OFFSET);
+
+ /* Populate the arch idmap hook */
+ arch_virt_to_idmap = keystone_virt_to_idmap;
+ platform_nb.notifier_call = keystone_platform_notifier;
+ keystone_dma_pfn_offset = PFN_DOWN(KEYSTONE_HIGH_PHYS_START -
+ KEYSTONE_LOW_PHYS_START);
+
+ pr_info("Switching to high address space at 0x%llx\n", (u64)offset);
+}
+
static const char *keystone_match[] __initconst = {
"ti,keystone",
NULL,
};
-void keystone_restart(enum reboot_mode mode, const char *cmd)
-{
- u32 val;
-
- BUG_ON(!keystone_rstctrl);
-
- /* Enable write access to RSTCTRL */
- val = readl(keystone_rstctrl);
- val &= PLL_RESET_WRITE_KEY_MASK;
- val |= PLL_RESET_WRITE_KEY;
- writel(val, keystone_rstctrl);
-
- /* Reset the SOC */
- val = readl(keystone_rstctrl);
- val &= ~PLL_RESET;
- writel(val, keystone_rstctrl);
-}
-
DT_MACHINE_START(KEYSTONE, "Keystone")
#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
.dma_zone_size = SZ_2G,
@@ -75,5 +115,5 @@ DT_MACHINE_START(KEYSTONE, "Keystone")
.smp = smp_ops(keystone_smp_ops),
.init_machine = keystone_init,
.dt_compat = keystone_match,
- .restart = keystone_restart,
+ .init_meminfo = keystone_init_meminfo,
MACHINE_END
diff --git a/arch/arm/mach-keystone/memory.h b/arch/arm/mach-keystone/memory.h
new file mode 100644
index 000000000000..b854fb18eef1
--- /dev/null
+++ b/arch/arm/mach-keystone/memory.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2014 Texas Instruments, Inc.
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+#ifndef __MEMORY_H
+#define __MEMORY_H
+
+#define MAX_PHYSMEM_BITS 36
+#define SECTION_SIZE_BITS 34
+
+#define KEYSTONE_LOW_PHYS_START 0x80000000ULL
+#define KEYSTONE_LOW_PHYS_SIZE 0x80000000ULL /* 2G */
+#define KEYSTONE_LOW_PHYS_END (KEYSTONE_LOW_PHYS_START + \
+ KEYSTONE_LOW_PHYS_SIZE - 1)
+
+#define KEYSTONE_HIGH_PHYS_START 0x800000000ULL
+#define KEYSTONE_HIGH_PHYS_SIZE 0x400000000ULL /* 16G */
+#define KEYSTONE_HIGH_PHYS_END (KEYSTONE_HIGH_PHYS_START + \
+ KEYSTONE_HIGH_PHYS_SIZE - 1)
+#endif /* __MEMORY_H */
diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c
index 5cf0683577ea..5f46a7cf907b 100644
--- a/arch/arm/mach-keystone/platsmp.c
+++ b/arch/arm/mach-keystone/platsmp.c
@@ -17,13 +17,16 @@
#include <linux/io.h>
#include <asm/smp_plat.h>
+#include <asm/prom.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
#include "keystone.h"
static int keystone_smp_boot_secondary(unsigned int cpu,
struct task_struct *idle)
{
- unsigned long start = virt_to_phys(&secondary_startup);
+ unsigned long start = virt_to_idmap(&secondary_startup);
int error;
pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
@@ -36,6 +39,19 @@ static int keystone_smp_boot_secondary(unsigned int cpu,
return error;
}
+#ifdef CONFIG_ARM_LPAE
+static void __cpuinit keystone_smp_secondary_initmem(unsigned int cpu)
+{
+ pgd_t *pgd0 = pgd_offset_k(0);
+ cpu_set_ttbr(1, __pa(pgd0) + TTBR1_OFFSET);
+ local_flush_tlb_all();
+}
+#else
+static inline void __cpuinit keystone_smp_secondary_initmem(unsigned int cpu)
+{}
+#endif
+
struct smp_operations keystone_smp_ops __initdata = {
.smp_boot_secondary = keystone_smp_boot_secondary,
+ .smp_secondary_init = keystone_smp_secondary_initmem,
};
diff --git a/arch/arm/mach-orion5x/board-dt.c b/arch/arm/mach-orion5x/board-dt.c
index 35d418faf8f1..79f033b1ddff 100644
--- a/arch/arm/mach-orion5x/board-dt.c
+++ b/arch/arm/mach-orion5x/board-dt.c
@@ -45,7 +45,7 @@ static void __init orion5x_dt_init(void)
orion5x_id(&dev, &rev, &dev_name);
printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
- BUG_ON(mvebu_mbus_dt_init());
+ BUG_ON(mvebu_mbus_dt_init(false));
/*
* Setup Orion address map