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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-01 12:10:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-01 12:10:20 -0700
commitc5fc249862af862df027030188cc083e072ecd19 (patch)
tree1205eaa47b07fc06b79e8c742a15dca5bcb1066c /arch/arm/mach-exynos
parent00e3fcc221f6fe6a890bf3e0e71c6b9944e58233 (diff)
parent97a2482d9891f0ad6a3710e0b6ae9949c140c7f1 (diff)
downloadop-kernel-dev-c5fc249862af862df027030188cc083e072ecd19.zip
op-kernel-dev-c5fc249862af862df027030188cc083e072ecd19.tar.gz
Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson: "A large cleanup branch this release, with a healthy 10k negative line delta. Most of this is removal of legacy (non-DT) support of shmobile platforms. There is also removal of two non-DT platforms on OMAP, and the plat-samsung directory is cleaned out by moving most of the previously shared-location-but-not-actually-shared files from there to the appropriate mach directories instead. There are other sets of changes in here as well: - Rob Herring removed use of set_irq_flags under all platforms and moved to genirq alternatives - a series of timer API conversions to set-state interface - ep93xx, nomadik and ux500 cleanups from Linus Walleij - __init annotation fixes from Nicolas Pitre + a bunch of other changes that all add up to a nice set of cleanups" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (108 commits) ARM/fb: ep93xx: switch framebuffer to use modedb only ARM: gemini: Setup timer3 as free running timer ARM: gemini: Use timer1 for clockevent ARM: gemini: Add missing register definitions for gemini timer ARM: ep93xx/timer: Migrate to new 'set-state' interface ARM: nomadik: push accelerometer down to boards ARM: nomadik: move l2x0 setup to device tree ARM: nomadik: selectively enable UART0 on boards ARM: nomadik: move hog code to use DT hogs ARM: shmobile: Fix mismerges ARM: ux500: simplify secondary CPU boot ARM: SAMSUNG: remove keypad-core header in plat-samsung ARM: SAMSUNG: local watchdog-reset header in mach-s3c64xx ARM: SAMSUNG: local onenand-core header in mach-s3c64xx ARM: SAMSUNG: local irq-uart header in mach-s3c64xx ARM: SAMSUNG: local backlight header in mach-s3c64xx ARM: SAMSUNG: local ata-core header in mach-s3c64xx ARM: SAMSUNG: local regs-usb-hsotg-phy header in mach-s3c64xx ARM: SAMSUNG: local spi-core header in mach-s3c24xx ARM: SAMSUNG: local nand-core header in mach-s3c24xx ...
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r--arch/arm/mach-exynos/Kconfig5
-rw-r--r--arch/arm/mach-exynos/Makefile2
-rw-r--r--arch/arm/mach-exynos/common.h6
-rw-r--r--arch/arm/mach-exynos/firmware.c2
-rw-r--r--arch/arm/mach-exynos/pmu.c3
-rw-r--r--arch/arm/mach-exynos/regs-srom.h53
-rw-r--r--arch/arm/mach-exynos/s5p-dev-mfc.c94
-rw-r--r--arch/arm/mach-exynos/suspend.c8
8 files changed, 164 insertions, 9 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 81064cd..4c4858c 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -30,6 +30,11 @@ menuconfig ARCH_EXYNOS
if ARCH_EXYNOS
+config S5P_DEV_MFC
+ bool
+ help
+ Compile in setup memory (init) code for MFC
+
config ARCH_EXYNOS3
bool "SAMSUNG EXYNOS3"
select ARM_CPU_SUSPEND if PM
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index bcefb54..2f30676 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -23,3 +23,5 @@ AFLAGS_sleep.o :=-Wa,-march=armv7-a$(plus_sec)
obj-$(CONFIG_EXYNOS5420_MCPM) += mcpm-exynos.o
CFLAGS_mcpm-exynos.o += -march=armv7-a
+
+obj-$(CONFIG_S5P_DEV_MFC) += s5p-dev-mfc.o
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index e3a9256..1534925 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -128,6 +128,12 @@ void exynos_firmware_init(void);
/* CPU BOOT mode flag for Exynos3250 SoC bootloader */
#define C2_STATE (1 << 3)
+/*
+ * Magic values for bootloader indicating chosen low power mode.
+ * See also Documentation/arm/Samsung/Bootloader-interface.txt
+ */
+#define EXYNOS_SLEEP_MAGIC 0x00000bad
+#define EXYNOS_AFTR_MAGIC 0xfcba0d10
void exynos_set_boot_flag(unsigned int cpu, unsigned int mode);
void exynos_clear_boot_flag(unsigned int cpu, unsigned int mode);
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index 245f6de..111cfbf 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -25,8 +25,6 @@
#include "common.h"
#include "smc.h"
-#define EXYNOS_SLEEP_MAGIC 0x00000bad
-#define EXYNOS_AFTR_MAGIC 0xfcba0d10
#define EXYNOS_BOOT_ADDR 0x8
#define EXYNOS_BOOT_FLAG 0xc
diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c
index e812c1c..de68938 100644
--- a/arch/arm/mach-exynos/pmu.c
+++ b/arch/arm/mach-exynos/pmu.c
@@ -698,7 +698,7 @@ static void exynos_power_off(void)
;
}
-void exynos5420_powerdown_conf(enum sys_powerdown mode)
+static void exynos5420_powerdown_conf(enum sys_powerdown mode)
{
u32 this_cluster;
@@ -991,7 +991,6 @@ static int exynos_pmu_probe(struct platform_device *pdev)
static struct platform_driver exynos_pmu_driver = {
.driver = {
.name = "exynos-pmu",
- .owner = THIS_MODULE,
.of_match_table = exynos_pmu_of_device_ids,
},
.probe = exynos_pmu_probe,
diff --git a/arch/arm/mach-exynos/regs-srom.h b/arch/arm/mach-exynos/regs-srom.h
new file mode 100644
index 0000000..5c4d442
--- /dev/null
+++ b/arch/arm/mach-exynos/regs-srom.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S5P SROMC register definitions
+ *
+ * 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.
+*/
+
+#ifndef __PLAT_SAMSUNG_REGS_SROM_H
+#define __PLAT_SAMSUNG_REGS_SROM_H __FILE__
+
+#include <mach/map.h>
+
+#define S5P_SROMREG(x) (S5P_VA_SROMC + (x))
+
+#define S5P_SROM_BW S5P_SROMREG(0x0)
+#define S5P_SROM_BC0 S5P_SROMREG(0x4)
+#define S5P_SROM_BC1 S5P_SROMREG(0x8)
+#define S5P_SROM_BC2 S5P_SROMREG(0xc)
+#define S5P_SROM_BC3 S5P_SROMREG(0x10)
+#define S5P_SROM_BC4 S5P_SROMREG(0x14)
+#define S5P_SROM_BC5 S5P_SROMREG(0x18)
+
+/* one register BW holds 4 x 4-bit packed settings for NCS0 - NCS3 */
+
+#define S5P_SROM_BW__DATAWIDTH__SHIFT 0
+#define S5P_SROM_BW__ADDRMODE__SHIFT 1
+#define S5P_SROM_BW__WAITENABLE__SHIFT 2
+#define S5P_SROM_BW__BYTEENABLE__SHIFT 3
+
+#define S5P_SROM_BW__CS_MASK 0xf
+
+#define S5P_SROM_BW__NCS0__SHIFT 0
+#define S5P_SROM_BW__NCS1__SHIFT 4
+#define S5P_SROM_BW__NCS2__SHIFT 8
+#define S5P_SROM_BW__NCS3__SHIFT 12
+#define S5P_SROM_BW__NCS4__SHIFT 16
+#define S5P_SROM_BW__NCS5__SHIFT 20
+
+/* applies to same to BCS0 - BCS3 */
+
+#define S5P_SROM_BCX__PMC__SHIFT 0
+#define S5P_SROM_BCX__TACP__SHIFT 4
+#define S5P_SROM_BCX__TCAH__SHIFT 8
+#define S5P_SROM_BCX__TCOH__SHIFT 12
+#define S5P_SROM_BCX__TACC__SHIFT 16
+#define S5P_SROM_BCX__TCOS__SHIFT 24
+#define S5P_SROM_BCX__TACS__SHIFT 28
+
+#endif /* __PLAT_SAMSUNG_REGS_SROM_H */
diff --git a/arch/arm/mach-exynos/s5p-dev-mfc.c b/arch/arm/mach-exynos/s5p-dev-mfc.c
new file mode 100644
index 0000000..0b04b6b0
--- /dev/null
+++ b/arch/arm/mach-exynos/s5p-dev-mfc.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2010-2011 Samsung Electronics Co.Ltd
+ *
+ * Base S5P MFC resource and device definitions
+ *
+ * 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/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/memblock.h>
+#include <linux/ioport.h>
+#include <linux/of_fdt.h>
+#include <linux/of.h>
+
+static struct platform_device s5p_device_mfc_l;
+static struct platform_device s5p_device_mfc_r;
+
+struct s5p_mfc_dt_meminfo {
+ unsigned long loff;
+ unsigned long lsize;
+ unsigned long roff;
+ unsigned long rsize;
+ char *compatible;
+};
+
+struct s5p_mfc_reserved_mem {
+ phys_addr_t base;
+ unsigned long size;
+ struct device *dev;
+};
+
+static struct s5p_mfc_reserved_mem s5p_mfc_mem[2] __initdata;
+
+
+static void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
+ phys_addr_t lbase, unsigned int lsize)
+{
+ int i;
+
+ s5p_mfc_mem[0].dev = &s5p_device_mfc_r.dev;
+ s5p_mfc_mem[0].base = rbase;
+ s5p_mfc_mem[0].size = rsize;
+
+ s5p_mfc_mem[1].dev = &s5p_device_mfc_l.dev;
+ s5p_mfc_mem[1].base = lbase;
+ s5p_mfc_mem[1].size = lsize;
+
+ for (i = 0; i < ARRAY_SIZE(s5p_mfc_mem); i++) {
+ struct s5p_mfc_reserved_mem *area = &s5p_mfc_mem[i];
+ if (memblock_remove(area->base, area->size)) {
+ printk(KERN_ERR "Failed to reserve memory for MFC device (%ld bytes at 0x%08lx)\n",
+ area->size, (unsigned long) area->base);
+ area->base = 0;
+ }
+ }
+}
+
+int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ const __be32 *prop;
+ int len;
+ struct s5p_mfc_dt_meminfo mfc_mem;
+
+ if (!data)
+ return 0;
+
+ if (!of_flat_dt_is_compatible(node, data))
+ return 0;
+
+ prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len);
+ if (!prop || (len != 2 * sizeof(unsigned long)))
+ return 0;
+
+ mfc_mem.loff = be32_to_cpu(prop[0]);
+ mfc_mem.lsize = be32_to_cpu(prop[1]);
+
+ prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len);
+ if (!prop || (len != 2 * sizeof(unsigned long)))
+ return 0;
+
+ mfc_mem.roff = be32_to_cpu(prop[0]);
+ mfc_mem.rsize = be32_to_cpu(prop[1]);
+
+ s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize,
+ mfc_mem.loff, mfc_mem.lsize);
+
+ return 1;
+}
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index f572219..e00eb39 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -32,13 +32,11 @@
#include <asm/suspend.h>
#include <plat/pm-common.h>
-#include <plat/regs-srom.h>
#include "common.h"
-#include "regs-pmu.h"
#include "exynos-pmu.h"
-
-#define S5P_CHECK_SLEEP 0x00000BAD
+#include "regs-pmu.h"
+#include "regs-srom.h"
#define REG_TABLE_END (-1U)
@@ -331,7 +329,7 @@ static void exynos_pm_enter_sleep_mode(void)
{
/* Set value of power down register for sleep mode */
exynos_sys_powerdown_conf(SYS_SLEEP);
- pmu_raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1);
+ pmu_raw_writel(EXYNOS_SLEEP_MAGIC, S5P_INFORM1);
}
static void exynos_pm_prepare(void)
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