ARM: EXYNOS: Consolidate exynos4 and exynos5 machine files
authorSachin Kamat <sachin.kamat@linaro.org>
Thu, 20 Mar 2014 17:14:30 +0000 (02:14 +0900)
committerKukjin Kim <kgene.kim@samsung.com>
Thu, 20 Mar 2014 17:14:39 +0000 (02:14 +0900)
Since there is very little difference between these two files,
they can be easily combined into one with necessary SoC checks.
While at it also merge the common.c file into this as it does
not have any other users.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
arch/arm/mach-exynos/Makefile
arch/arm/mach-exynos/common.c [deleted file]
arch/arm/mach-exynos/common.h
arch/arm/mach-exynos/exynos.c [new file with mode: 0644]
arch/arm/mach-exynos/mach-exynos4-dt.c [deleted file]
arch/arm/mach-exynos/mach-exynos5-dt.c [deleted file]
arch/arm/mach-exynos/regs-pmu.h

index 8930b66b4abdba97b2d09aac81f28cf0df5fb21b..71df742fee25095ada9a108ae7e540e0fb49aa62 100644 (file)
@@ -12,7 +12,7 @@ obj-                          :=
 
 # Core
 
-obj-$(CONFIG_ARCH_EXYNOS)      += common.o
+obj-$(CONFIG_ARCH_EXYNOS)      += exynos.o
 
 obj-$(CONFIG_S5P_PM)           += pm.o
 obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o
@@ -29,8 +29,3 @@ obj-$(CONFIG_ARCH_EXYNOS)     += firmware.o
 
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_exynos-smc.o            :=-Wa,-march=armv7-a$(plus_sec)
-
-# machine support
-
-obj-$(CONFIG_ARCH_EXYNOS4)     += mach-exynos4-dt.o
-obj-$(CONFIG_ARCH_EXYNOS5)     += mach-exynos5-dt.o
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
deleted file mode 100644 (file)
index cd70d74..0000000
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *             http://www.samsung.com
- *
- * Common Codes for EXYNOS
- *
- * 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/kernel.h>
-#include <linux/bitops.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/irqchip.h>
-#include <linux/io.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <clocksource/samsung_pwm.h>
-#include <linux/sched.h>
-#include <linux/serial_core.h>
-#include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/pm_domain.h>
-#include <linux/export.h>
-#include <linux/irqdomain.h>
-#include <linux/of_address.h>
-#include <linux/irqchip/arm-gic.h>
-#include <linux/irqchip/chained_irq.h>
-#include <linux/platform_device.h>
-
-#include <asm/proc-fns.h>
-#include <asm/exception.h>
-#include <asm/hardware/cache-l2x0.h>
-#include <asm/mach/map.h>
-#include <asm/mach/irq.h>
-#include <asm/cacheflush.h>
-
-#include <plat/cpu.h>
-#include <plat/pm.h>
-#include <plat/regs-serial.h>
-
-#include "common.h"
-#include "regs-pmu.h"
-
-#define L2_AUX_VAL 0x7C470001
-#define L2_AUX_MASK 0xC200ffff
-
-/* Initial IO mappings */
-
-static struct map_desc exynos4_iodesc[] __initdata = {
-       {
-               .virtual        = (unsigned long)S3C_VA_SYS,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSCON),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S3C_VA_TIMER,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_TIMER),
-               .length         = SZ_16K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S3C_VA_WATCHDOG,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_WATCHDOG),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_SROMC,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_SROMC),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_SYSTIMER,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSTIMER),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_PMU,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_PMU),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_COMBINER_BASE,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_COMBINER),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_GIC_CPU,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_GIC_CPU),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_GIC_DIST,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_GIC_DIST),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_CMU,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_CMU),
-               .length         = SZ_128K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_COREPERI_BASE,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_COREPERI),
-               .length         = SZ_8K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_L2CC,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_L2CC),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_DMC0,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_DMC0),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_DMC1,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_DMC1),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S3C_VA_USB_HSPHY,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_HSPHY),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos4_iodesc0[] __initdata = {
-       {
-               .virtual        = (unsigned long)S5P_VA_SYSRAM,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM0),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos4_iodesc1[] __initdata = {
-       {
-               .virtual        = (unsigned long)S5P_VA_SYSRAM,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM1),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos4210_iodesc[] __initdata = {
-       {
-               .virtual        = (unsigned long)S5P_VA_SYSRAM_NS,
-               .pfn            = __phys_to_pfn(EXYNOS4210_PA_SYSRAM_NS),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos4x12_iodesc[] __initdata = {
-       {
-               .virtual        = (unsigned long)S5P_VA_SYSRAM_NS,
-               .pfn            = __phys_to_pfn(EXYNOS4x12_PA_SYSRAM_NS),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos5250_iodesc[] __initdata = {
-       {
-               .virtual        = (unsigned long)S5P_VA_SYSRAM_NS,
-               .pfn            = __phys_to_pfn(EXYNOS5250_PA_SYSRAM_NS),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos5_iodesc[] __initdata = {
-       {
-               .virtual        = (unsigned long)S3C_VA_SYS,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSCON),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S3C_VA_TIMER,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_TIMER),
-               .length         = SZ_16K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S3C_VA_WATCHDOG,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_WATCHDOG),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_SROMC,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_SROMC),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_SYSRAM,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSRAM),
-               .length         = SZ_4K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_CMU,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_CMU),
-               .length         = 144 * SZ_1K,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = (unsigned long)S5P_VA_PMU,
-               .pfn            = __phys_to_pfn(EXYNOS5_PA_PMU),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE,
-       },
-};
-
-void exynos4_restart(enum reboot_mode mode, const char *cmd)
-{
-       __raw_writel(0x1, S5P_SWRESET);
-}
-
-void exynos5_restart(enum reboot_mode mode, const char *cmd)
-{
-       struct device_node *np;
-       u32 val;
-       void __iomem *addr;
-
-       val = 0x1;
-       addr = EXYNOS_SWRESET;
-
-       if (of_machine_is_compatible("samsung,exynos5440")) {
-               u32 status;
-               np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock");
-
-               addr = of_iomap(np, 0) + 0xbc;
-               status = __raw_readl(addr);
-
-               addr = of_iomap(np, 0) + 0xcc;
-               val = __raw_readl(addr);
-
-               val = (val & 0xffff0000) | (status & 0xffff);
-       }
-
-       __raw_writel(val, addr);
-}
-
-static struct platform_device exynos_cpuidle = {
-       .name           = "exynos_cpuidle",
-       .id             = -1,
-};
-
-void __init exynos_cpuidle_init(void)
-{
-       platform_device_register(&exynos_cpuidle);
-}
-
-void __init exynos_cpufreq_init(void)
-{
-       platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
-}
-
-void __init exynos_init_late(void)
-{
-       if (of_machine_is_compatible("samsung,exynos5440"))
-               /* to be supported later */
-               return;
-
-       pm_genpd_poweroff_unused();
-}
-
-static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
-                                       int depth, void *data)
-{
-       struct map_desc iodesc;
-       __be32 *reg;
-       unsigned long len;
-
-       if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") &&
-               !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock"))
-               return 0;
-
-       reg = of_get_flat_dt_prop(node, "reg", &len);
-       if (reg == NULL || len != (sizeof(unsigned long) * 2))
-               return 0;
-
-       iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
-       iodesc.length = be32_to_cpu(reg[1]) - 1;
-       iodesc.virtual = (unsigned long)S5P_VA_CHIPID;
-       iodesc.type = MT_DEVICE;
-       iotable_init(&iodesc, 1);
-       return 1;
-}
-
-/*
- * exynos_map_io
- *
- * register the standard cpu IO areas
- */
-static void __init exynos_map_io(void)
-{
-       if (soc_is_exynos4210() || soc_is_exynos4212() || soc_is_exynos4412())
-               iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
-
-       if (soc_is_exynos5250() || soc_is_exynos5420())
-               iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
-
-       if (soc_is_exynos4210()) {
-               if (samsung_rev() == EXYNOS4210_REV_0)
-                       iotable_init(exynos4_iodesc0,
-                                               ARRAY_SIZE(exynos4_iodesc0));
-               else
-                       iotable_init(exynos4_iodesc1,
-                                               ARRAY_SIZE(exynos4_iodesc1));
-               iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc));
-       }
-       if (soc_is_exynos4212() || soc_is_exynos4412())
-               iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc));
-       if (soc_is_exynos5250())
-               iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
-}
-
-void __init exynos_init_io(void)
-{
-       debug_ll_io_init();
-
-       of_scan_flat_dt(exynos_fdt_map_chipid, NULL);
-
-       /* detect cpu id and rev. */
-       s5p_init_cpu(S5P_VA_CHIPID);
-
-       exynos_map_io();
-}
-
-struct bus_type exynos_subsys = {
-       .name           = "exynos-core",
-       .dev_name       = "exynos-core",
-};
-
-static int __init exynos_core_init(void)
-{
-       return subsys_system_register(&exynos_subsys, NULL);
-}
-core_initcall(exynos_core_init);
-
-static int __init exynos4_l2x0_cache_init(void)
-{
-       int ret;
-
-       ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
-       if (ret)
-               return ret;
-
-       l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
-       clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
-       return 0;
-}
-early_initcall(exynos4_l2x0_cache_init);
index f76967b1c551054da36b391e7413e47057641aae..a0c76695379829a5290b7c3697f3108470b48195 100644 (file)
@@ -19,8 +19,7 @@ void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1);
 
 struct map_desc;
 void exynos_init_io(void);
-void exynos4_restart(enum reboot_mode mode, const char *cmd);
-void exynos5_restart(enum reboot_mode mode, const char *cmd);
+void exynos_restart(enum reboot_mode mode, const char *cmd);
 void exynos_cpuidle_init(void);
 void exynos_cpufreq_init(void);
 void exynos_init_late(void);
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
new file mode 100644 (file)
index 0000000..3703075
--- /dev/null
@@ -0,0 +1,406 @@
+/*
+ * SAMSUNG EXYNOS Flattened Device Tree enabled machine
+ *
+ * Copyright (c) 2010-2014 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
+ * 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/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+
+#include <asm/cacheflush.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/memory.h>
+
+#include <plat/cpu.h>
+#include <plat/regs-serial.h>
+
+#include "common.h"
+#include "mfc.h"
+#include "regs-pmu.h"
+
+#define L2_AUX_VAL 0x7C470001
+#define L2_AUX_MASK 0xC200ffff
+
+static struct map_desc exynos4_iodesc[] __initdata = {
+       {
+               .virtual        = (unsigned long)S3C_VA_SYS,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSCON),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_TIMER,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_TIMER),
+               .length         = SZ_16K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_WATCHDOG,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_WATCHDOG),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SROMC,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_SROMC),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SYSTIMER,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSTIMER),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_PMU,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_PMU),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_COMBINER_BASE,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_COMBINER),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_GIC_CPU,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_GIC_CPU),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_GIC_DIST,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_GIC_DIST),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_CMU,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_CMU),
+               .length         = SZ_128K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_COREPERI_BASE,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_COREPERI),
+               .length         = SZ_8K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_L2CC,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_L2CC),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_DMC0,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_DMC0),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_DMC1,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_DMC1),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_USB_HSPHY,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_HSPHY),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       },
+};
+
+static struct map_desc exynos4_iodesc0[] __initdata = {
+       {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM0),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       },
+};
+
+static struct map_desc exynos4_iodesc1[] __initdata = {
+       {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM,
+               .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM1),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       },
+};
+
+static struct map_desc exynos4210_iodesc[] __initdata = {
+       {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM_NS,
+               .pfn            = __phys_to_pfn(EXYNOS4210_PA_SYSRAM_NS),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       },
+};
+
+static struct map_desc exynos4x12_iodesc[] __initdata = {
+       {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM_NS,
+               .pfn            = __phys_to_pfn(EXYNOS4x12_PA_SYSRAM_NS),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       },
+};
+
+static struct map_desc exynos5250_iodesc[] __initdata = {
+       {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM_NS,
+               .pfn            = __phys_to_pfn(EXYNOS5250_PA_SYSRAM_NS),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       },
+};
+
+static struct map_desc exynos5_iodesc[] __initdata = {
+       {
+               .virtual        = (unsigned long)S3C_VA_SYS,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSCON),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_TIMER,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_TIMER),
+               .length         = SZ_16K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_WATCHDOG,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_WATCHDOG),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SROMC,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SROMC),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSRAM),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_CMU,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_CMU),
+               .length         = 144 * SZ_1K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_PMU,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_PMU),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       },
+};
+
+void exynos_restart(enum reboot_mode mode, const char *cmd)
+{
+       struct device_node *np;
+       u32 val = 0x1;
+       void __iomem *addr = EXYNOS_SWRESET;
+
+       if (of_machine_is_compatible("samsung,exynos5440")) {
+               u32 status;
+               np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock");
+
+               addr = of_iomap(np, 0) + 0xbc;
+               status = __raw_readl(addr);
+
+               addr = of_iomap(np, 0) + 0xcc;
+               val = __raw_readl(addr);
+
+               val = (val & 0xffff0000) | (status & 0xffff);
+       }
+
+       __raw_writel(val, addr);
+}
+
+static struct platform_device exynos_cpuidle = {
+       .name           = "exynos_cpuidle",
+       .id             = -1,
+};
+
+void __init exynos_cpuidle_init(void)
+{
+       platform_device_register(&exynos_cpuidle);
+}
+
+void __init exynos_cpufreq_init(void)
+{
+       platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
+}
+
+void __init exynos_init_late(void)
+{
+       if (of_machine_is_compatible("samsung,exynos5440"))
+               /* to be supported later */
+               return;
+
+       pm_genpd_poweroff_unused();
+}
+
+static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
+                                       int depth, void *data)
+{
+       struct map_desc iodesc;
+       __be32 *reg;
+       unsigned long len;
+
+       if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") &&
+               !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock"))
+               return 0;
+
+       reg = of_get_flat_dt_prop(node, "reg", &len);
+       if (reg == NULL || len != (sizeof(unsigned long) * 2))
+               return 0;
+
+       iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
+       iodesc.length = be32_to_cpu(reg[1]) - 1;
+       iodesc.virtual = (unsigned long)S5P_VA_CHIPID;
+       iodesc.type = MT_DEVICE;
+       iotable_init(&iodesc, 1);
+       return 1;
+}
+
+/*
+ * exynos_map_io
+ *
+ * register the standard cpu IO areas
+ */
+static void __init exynos_map_io(void)
+{
+       if (soc_is_exynos4())
+               iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
+
+       if (soc_is_exynos5())
+               iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
+
+       if (soc_is_exynos4210()) {
+               if (samsung_rev() == EXYNOS4210_REV_0)
+                       iotable_init(exynos4_iodesc0,
+                                               ARRAY_SIZE(exynos4_iodesc0));
+               else
+                       iotable_init(exynos4_iodesc1,
+                                               ARRAY_SIZE(exynos4_iodesc1));
+               iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc));
+       }
+       if (soc_is_exynos4212() || soc_is_exynos4412())
+               iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc));
+       if (soc_is_exynos5250())
+               iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
+}
+
+void __init exynos_init_io(void)
+{
+       debug_ll_io_init();
+
+       of_scan_flat_dt(exynos_fdt_map_chipid, NULL);
+
+       /* detect cpu id and rev. */
+       s5p_init_cpu(S5P_VA_CHIPID);
+
+       exynos_map_io();
+}
+
+struct bus_type exynos_subsys = {
+       .name           = "exynos-core",
+       .dev_name       = "exynos-core",
+};
+
+static int __init exynos_core_init(void)
+{
+       return subsys_system_register(&exynos_subsys, NULL);
+}
+core_initcall(exynos_core_init);
+
+static int __init exynos4_l2x0_cache_init(void)
+{
+       int ret;
+
+       ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
+       if (ret)
+               return ret;
+
+       l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
+       clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
+       return 0;
+}
+early_initcall(exynos4_l2x0_cache_init);
+
+static void __init exynos_dt_machine_init(void)
+{
+       struct device_node *i2c_np;
+       const char *i2c_compat = "samsung,s3c2440-i2c";
+       unsigned int tmp;
+       int id;
+
+       /*
+        * Exynos5's legacy i2c controller and new high speed i2c
+        * controller have muxed interrupt sources. By default the
+        * interrupts for 4-channel HS-I2C controller are enabled.
+        * If node for first four channels of legacy i2c controller
+        * are available then re-configure the interrupts via the
+        * system register.
+        */
+       if (soc_is_exynos5()) {
+               for_each_compatible_node(i2c_np, NULL, i2c_compat) {
+                       if (of_device_is_available(i2c_np)) {
+                               id = of_alias_get_id(i2c_np, "i2c");
+                               if (id < 4) {
+                                       tmp = readl(EXYNOS5_SYS_I2C_CFG);
+                                       writel(tmp & ~(0x1 << id),
+                                                       EXYNOS5_SYS_I2C_CFG);
+                               }
+                       }
+               }
+       }
+
+       exynos_cpuidle_init();
+       exynos_cpufreq_init();
+
+       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static char const *exynos_dt_compat[] __initconst = {
+       "samsung,exynos4210",
+       "samsung,exynos4212",
+       "samsung,exynos4412",
+       "samsung,exynos5250",
+       "samsung,exynos5420",
+       "samsung,exynos5440",
+       NULL
+};
+
+static void __init exynos_reserve(void)
+{
+#ifdef CONFIG_S5P_DEV_MFC
+       int i;
+       char *mfc_mem[] = {
+               "samsung,mfc-v5",
+               "samsung,mfc-v6",
+               "samsung,mfc-v7",
+       };
+
+       for (i = 0; i < ARRAY_SIZE(mfc_mem); i++)
+               if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i]))
+                       break;
+#endif
+}
+
+DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)")
+       /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
+       /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
+       .smp            = smp_ops(exynos_smp_ops),
+       .map_io         = exynos_init_io,
+       .init_early     = exynos_firmware_init,
+       .init_machine   = exynos_dt_machine_init,
+       .init_late      = exynos_init_late,
+       .dt_compat      = exynos_dt_compat,
+       .restart        = exynos_restart,
+       .reserve        = exynos_reserve,
+MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
deleted file mode 100644 (file)
index fa019fd..0000000
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Samsung's EXYNOS4 flattened device tree enabled machine
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *             http://www.samsung.com
- * Copyright (c) 2010-2011 Linaro Ltd.
- *             www.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/of_platform.h>
-#include <linux/of_fdt.h>
-
-#include <asm/mach/arch.h>
-
-#include "common.h"
-#include "mfc.h"
-
-static void __init exynos4_dt_machine_init(void)
-{
-       exynos_cpuidle_init();
-       exynos_cpufreq_init();
-
-       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static char const *exynos4_dt_compat[] __initdata = {
-       "samsung,exynos4210",
-       "samsung,exynos4212",
-       "samsung,exynos4412",
-       NULL
-};
-
-static void __init exynos4_reserve(void)
-{
-#ifdef CONFIG_S5P_DEV_MFC
-       of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, "samsung,mfc-v5");
-#endif
-}
-DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
-       /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
-       .smp            = smp_ops(exynos_smp_ops),
-       .map_io         = exynos_init_io,
-       .init_early     = exynos_firmware_init,
-       .init_machine   = exynos4_dt_machine_init,
-       .init_late      = exynos_init_late,
-       .dt_compat      = exynos4_dt_compat,
-       .restart        = exynos4_restart,
-       .reserve        = exynos4_reserve,
-MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
deleted file mode 100644 (file)
index 9a8a798..0000000
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
- *
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- *             http://www.samsung.com
- *
- * 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/of_platform.h>
-#include <linux/of_fdt.h>
-#include <linux/io.h>
-
-#include <asm/mach/arch.h>
-
-#include "common.h"
-#include "mfc.h"
-#include "regs-pmu.h"
-
-static void __init exynos5_dt_machine_init(void)
-{
-       struct device_node *i2c_np;
-       const char *i2c_compat = "samsung,s3c2440-i2c";
-       unsigned int tmp;
-
-       /*
-        * Exynos5's legacy i2c controller and new high speed i2c
-        * controller have muxed interrupt sources. By default the
-        * interrupts for 4-channel HS-I2C controller are enabled.
-        * If node for first four channels of legacy i2c controller
-        * are available then re-configure the interrupts via the
-        * system register.
-        */
-       for_each_compatible_node(i2c_np, NULL, i2c_compat) {
-               if (of_device_is_available(i2c_np)) {
-                       if (of_alias_get_id(i2c_np, "i2c") < 4) {
-                               tmp = readl(EXYNOS5_SYS_I2C_CFG);
-                               writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")),
-                                               EXYNOS5_SYS_I2C_CFG);
-                       }
-               }
-       }
-
-       exynos_cpuidle_init();
-       exynos_cpufreq_init();
-
-       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static char const *exynos5_dt_compat[] __initdata = {
-       "samsung,exynos5250",
-       "samsung,exynos5420",
-       "samsung,exynos5440",
-       NULL
-};
-
-static void __init exynos5_reserve(void)
-{
-#ifdef CONFIG_S5P_DEV_MFC
-       int i;
-       char *mfc_mem[] = {
-               "samsung,mfc-v6",
-               "samsung,mfc-v7",
-       };
-
-       for (i = 0; i < ARRAY_SIZE(mfc_mem); i++)
-               if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i]))
-                       break;
-#endif
-}
-
-DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
-       /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-       .smp            = smp_ops(exynos_smp_ops),
-       .map_io         = exynos_init_io,
-       .init_machine   = exynos5_dt_machine_init,
-       .init_late      = exynos_init_late,
-       .dt_compat      = exynos5_dt_compat,
-       .restart        = exynos5_restart,
-       .reserve        = exynos5_reserve,
-MACHINE_END
index 7c029ce27711d7b8fa2737098e1662befe322ebe..58e3fc4d6b5ab36c434f456bc2cc73d78548a43c 100644 (file)
@@ -26,7 +26,6 @@
 #define S5P_USE_STANDBY_WFI0                   (1 << 16)
 #define S5P_USE_STANDBY_WFE0                   (1 << 24)
 
-#define S5P_SWRESET                            S5P_PMUREG(0x0400)
 #define EXYNOS_SWRESET                         S5P_PMUREG(0x0400)
 #define EXYNOS5440_SWRESET                     S5P_PMUREG(0x00C4)