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authorAmit Daniel Kachhap <amit.kachhap@linaro.org>2011-12-14 21:44:07 +0530
committerAmit Daniel Kachhap <amit.kachhap@linaro.org>2011-12-14 21:57:38 +0530
commite82b9d821ecc1f857142a55b0fb38d0d5256fbaf (patch)
tree4dc413e65d771150bea650eeccaf45cf59ef3727
parent6bdad5c64b0482e61d20e22ddcfae40b2aa9f83f (diff)
ARM: exynos4: Add thermal sensor driver platform device support
This patch adds necessary source definations needed for TMU driver and the platform device support. Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
-rw-r--r--arch/arm/mach-exynos4/Kconfig12
-rw-r--r--arch/arm/mach-exynos4/Makefile1
-rw-r--r--arch/arm/mach-exynos4/clock.c4
-rw-r--r--arch/arm/mach-exynos4/dev-tmu.c68
-rw-r--r--arch/arm/mach-exynos4/include/mach/irqs.h2
-rw-r--r--arch/arm/mach-exynos4/include/mach/map.h1
-rw-r--r--arch/arm/mach-exynos4/mach-origen.c1
-rw-r--r--arch/arm/plat-samsung/include/plat/devs.h1
8 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index 3ceefdbadd1..f83526865d1 100644
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -46,6 +46,17 @@ config EXYNOS4_DEV_DWMCI
help
Compile in platform device definitions for DWMCI
+config EXYNOS4_DEV_TMU
+ bool "Exynos4 tmu device support"
+ default n
+ depends on ARCH_EXYNOS4
+ ---help---
+ Compile in platform device definitions for TMU. This macro also
+ enables compilation hwmon base TMU driver and also allows compilation
+ of the platform device files. The platform data in this case is trip
+ temperature and some tmu h/w configurations related parameter.
+
+
config EXYNOS4_SETUP_I2C1
bool
help
@@ -224,6 +235,7 @@ config MACH_ORIGEN
select S3C_DEV_RTC
select S3C_DEV_WDT
select S3C_DEV_HSMMC2
+ select EXYNOS4_DEV_TMU
select EXYNOS4_SETUP_SDHCI
help
Machine support for ORIGEN based on Samsung EXYNOS4210
diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
index cbc97670143..8e5c098db7c 100644
--- a/arch/arm/mach-exynos4/Makefile
+++ b/arch/arm/mach-exynos4/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o
obj-$(CONFIG_EXYNOS4_DEV_PD) += dev-pd.o
obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o
obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o
+obj-$(CONFIG_EXYNOS4_DEV_TMU) += dev-tmu.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMD0) += setup-fimd0.o
diff --git a/arch/arm/mach-exynos4/clock.c b/arch/arm/mach-exynos4/clock.c
index 86964d2e9e1..b90920e526f 100644
--- a/arch/arm/mach-exynos4/clock.c
+++ b/arch/arm/mach-exynos4/clock.c
@@ -468,6 +468,10 @@ static struct clk init_clocks_off[] = {
.enable = exynos4_clk_ip_peril_ctrl,
.ctrlbit = (1 << 15),
}, {
+ .name = "tmu_apbif",
+ .enable = exynos4_clk_ip_perir_ctrl,
+ .ctrlbit = (1 << 17),
+ }, {
.name = "keypad",
.enable = exynos4_clk_ip_perir_ctrl,
.ctrlbit = (1 << 16),
diff --git a/arch/arm/mach-exynos4/dev-tmu.c b/arch/arm/mach-exynos4/dev-tmu.c
new file mode 100644
index 00000000000..c1e9e9648b6
--- /dev/null
+++ b/arch/arm/mach-exynos4/dev-tmu.c
@@ -0,0 +1,68 @@
+/* linux/arch/arm/mach-exynos4/dev-tmu.c
+ *
+ * Copyright 2011 by SAMSUNG
+ *
+ * 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/string.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/platform_data/exynos4_tmu.h>
+#include <asm/irq.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+#include <plat/devs.h>
+
+static struct resource exynos4_tmu_resource[] = {
+ [0] = {
+ .start = EXYNOS4_PA_TMU,
+ .end = EXYNOS4_PA_TMU + 0xFFFF - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_TMU_TRIG0,
+ .end = IRQ_TMU_TRIG0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct exynos4_tmu_platform_data default_tmu_data = {
+ .threshold = 55,
+ .trigger_levels[0] = 0xFF,
+ .trigger_levels[1] = 5,
+ .trigger_levels[2] = 20,
+ .trigger_levels[3] = 30,
+ .trigger_level0_en = 0,
+ .trigger_level1_en = 1,
+ .trigger_level2_en = 1,
+ .trigger_level3_en = 1,
+ .gain = 15,
+ .reference_voltage = 7,
+ .cal_type = TYPE_ONE_POINT_TRIMMING,
+ .freq_tab[0] = {
+ .freq_clip_pctg[0] = 50,
+ },
+ .freq_tab[1] = {
+ .freq_clip_pctg[0] = 99,
+ },
+ .freq_tab[2] = {
+ .freq_clip_pctg[0] = 99,
+ },
+ .level_count = 3,
+};
+
+struct platform_device exynos4_device_tmu = {
+ .name = "exynos4-tmu",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(exynos4_tmu_resource),
+ .resource = exynos4_tmu_resource,
+ .dev = {
+ .platform_data = &default_tmu_data,
+ },
+};
+EXPORT_SYMBOL(exynos4_device_tmu);
diff --git a/arch/arm/mach-exynos4/include/mach/irqs.h b/arch/arm/mach-exynos4/include/mach/irqs.h
index f8952f8f375..94e87a9172c 100644
--- a/arch/arm/mach-exynos4/include/mach/irqs.h
+++ b/arch/arm/mach-exynos4/include/mach/irqs.h
@@ -119,6 +119,8 @@
#define COMBINER_GROUP(x) ((x) * MAX_IRQ_IN_COMBINER + IRQ_SPI(128))
#define COMBINER_IRQ(x, y) (COMBINER_GROUP(x) + y)
+#define IRQ_TMU_TRIG0 COMBINER_IRQ(2, 4)
+#define IRQ_TMU_TRIG1 COMBINER_IRQ(3, 4)
#define IRQ_SYSMMU_MDMA0_0 COMBINER_IRQ(4, 0)
#define IRQ_SYSMMU_SSS_0 COMBINER_IRQ(4, 1)
#define IRQ_SYSMMU_FIMC0_0 COMBINER_IRQ(4, 2)
diff --git a/arch/arm/mach-exynos4/include/mach/map.h b/arch/arm/mach-exynos4/include/mach/map.h
index d32296dc65e..233525bfa43 100644
--- a/arch/arm/mach-exynos4/include/mach/map.h
+++ b/arch/arm/mach-exynos4/include/mach/map.h
@@ -66,6 +66,7 @@
#define EXYNOS4_PA_COREPERI 0x10500000
#define EXYNOS4_PA_TWD 0x10500600
#define EXYNOS4_PA_L2CC 0x10502000
+#define EXYNOS4_PA_TMU 0x100C0000
#define EXYNOS4_PA_MDMA 0x10810000
#define EXYNOS4_PA_PDMA0 0x12680000
diff --git a/arch/arm/mach-exynos4/mach-origen.c b/arch/arm/mach-exynos4/mach-origen.c
index b5f6f38557c..74180441852 100644
--- a/arch/arm/mach-exynos4/mach-origen.c
+++ b/arch/arm/mach-exynos4/mach-origen.c
@@ -83,6 +83,7 @@ static struct platform_device *origen_devices[] __initdata = {
&s3c_device_hsmmc2,
&s3c_device_rtc,
&s3c_device_wdt,
+ &exynos4_device_tmu,
};
static void __init origen_map_io(void)
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 24ebb1e1de4..04380872048 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -148,6 +148,7 @@ extern struct platform_device s5p_device_mipi_csis1;
extern struct platform_device s5p_device_ehci;
extern struct platform_device exynos4_device_sysmmu;
+extern struct platform_device exynos4_device_tmu;
/* s3c2440 specific devices */