summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-exynos4
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-exynos4')
-rw-r--r--arch/arm/mach-exynos4/Kconfig2
-rw-r--r--arch/arm/mach-exynos4/Makefile1
-rw-r--r--arch/arm/mach-exynos4/cpuidle.c86
-rw-r--r--arch/arm/mach-exynos4/mach-nuri.c89
4 files changed, 178 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index 805196207ce..b92c1e55714 100644
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -169,9 +169,11 @@ config MACH_NURI
select S3C_DEV_HSMMC2
select S3C_DEV_HSMMC3
select S3C_DEV_I2C1
+ select S3C_DEV_I2C3
select S3C_DEV_I2C5
select S5P_DEV_USB_EHCI
select EXYNOS4_SETUP_I2C1
+ select EXYNOS4_SETUP_I2C3
select EXYNOS4_SETUP_I2C5
select EXYNOS4_SETUP_SDHCI
select SAMSUNG_DEV_PWM
diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
index 777897551e4..683fc387c8a 100644
--- a/arch/arm/mach-exynos4/Makefile
+++ b/arch/arm/mach-exynos4/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_CPU_EXYNOS4210) += cpu.o init.o clock.o irq-combiner.o
obj-$(CONFIG_CPU_EXYNOS4210) += setup-i2c0.o gpiolib.o irq-eint.o dma.o
obj-$(CONFIG_PM) += pm.o sleep.o
obj-$(CONFIG_CPU_FREQ) += cpufreq.o
+obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
diff --git a/arch/arm/mach-exynos4/cpuidle.c b/arch/arm/mach-exynos4/cpuidle.c
new file mode 100644
index 00000000000..bf7e96f2793
--- /dev/null
+++ b/arch/arm/mach-exynos4/cpuidle.c
@@ -0,0 +1,86 @@
+/* linux/arch/arm/mach-exynos4/cpuidle.c
+ *
+ * Copyright (c) 2011 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/kernel.h>
+#include <linux/init.h>
+#include <linux/cpuidle.h>
+#include <linux/io.h>
+
+#include <asm/proc-fns.h>
+
+static int exynos4_enter_idle(struct cpuidle_device *dev,
+ struct cpuidle_state *state);
+
+static struct cpuidle_state exynos4_cpuidle_set[] = {
+ [0] = {
+ .enter = exynos4_enter_idle,
+ .exit_latency = 1,
+ .target_residency = 100000,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .name = "IDLE",
+ .desc = "ARM clock gating(WFI)",
+ },
+};
+
+static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device);
+
+static struct cpuidle_driver exynos4_idle_driver = {
+ .name = "exynos4_idle",
+ .owner = THIS_MODULE,
+};
+
+static int exynos4_enter_idle(struct cpuidle_device *dev,
+ struct cpuidle_state *state)
+{
+ struct timeval before, after;
+ int idle_time;
+
+ local_irq_disable();
+ do_gettimeofday(&before);
+
+ cpu_do_idle();
+
+ do_gettimeofday(&after);
+ local_irq_enable();
+ idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
+ (after.tv_usec - before.tv_usec);
+
+ return idle_time;
+}
+
+static int __init exynos4_init_cpuidle(void)
+{
+ int i, max_cpuidle_state, cpu_id;
+ struct cpuidle_device *device;
+
+ cpuidle_register_driver(&exynos4_idle_driver);
+
+ for_each_cpu(cpu_id, cpu_online_mask) {
+ device = &per_cpu(exynos4_cpuidle_device, cpu_id);
+ device->cpu = cpu_id;
+
+ device->state_count = (sizeof(exynos4_cpuidle_set) /
+ sizeof(struct cpuidle_state));
+
+ max_cpuidle_state = device->state_count;
+
+ for (i = 0; i < max_cpuidle_state; i++) {
+ memcpy(&device->states[i], &exynos4_cpuidle_set[i],
+ sizeof(struct cpuidle_state));
+ }
+
+ if (cpuidle_register_device(device)) {
+ printk(KERN_ERR "CPUidle register device failed\n,");
+ return -EIO;
+ }
+ }
+ return 0;
+}
+device_initcall(exynos4_init_cpuidle);
diff --git a/arch/arm/mach-exynos4/mach-nuri.c b/arch/arm/mach-exynos4/mach-nuri.c
index bb5d12f43af..642702bb5b1 100644
--- a/arch/arm/mach-exynos4/mach-nuri.c
+++ b/arch/arm/mach-exynos4/mach-nuri.c
@@ -12,6 +12,7 @@
#include <linux/serial_core.h>
#include <linux/input.h>
#include <linux/i2c.h>
+#include <linux/i2c/atmel_mxt_ts.h>
#include <linux/gpio_keys.h>
#include <linux/gpio.h>
#include <linux/regulator/machine.h>
@@ -32,6 +33,8 @@
#include <plat/sdhci.h>
#include <plat/ehci.h>
#include <plat/clock.h>
+#include <plat/gpio-cfg.h>
+#include <plat/iic.h>
#include <mach/map.h>
@@ -259,6 +262,88 @@ static struct i2c_board_info i2c1_devs[] __initdata = {
/* Gyro, To be updated */
};
+/* TSP */
+static u8 mxt_init_vals[] = {
+ /* MXT_GEN_COMMAND(6) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* MXT_GEN_POWER(7) */
+ 0x20, 0xff, 0x32,
+ /* MXT_GEN_ACQUIRE(8) */
+ 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
+ /* MXT_TOUCH_MULTI(9) */
+ 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
+ 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00,
+ /* MXT_TOUCH_KEYARRAY(15) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
+ 0x00,
+ /* MXT_SPT_GPIOPWM(19) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* MXT_PROCI_GRIPFACE(20) */
+ 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
+ 0x0f, 0x0a,
+ /* MXT_PROCG_NOISE(22) */
+ 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
+ 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
+ /* MXT_TOUCH_PROXIMITY(23) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* MXT_PROCI_ONETOUCH(24) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* MXT_SPT_SELFTEST(25) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ /* MXT_PROCI_TWOTOUCH(27) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* MXT_SPT_CTECONFIG(28) */
+ 0x00, 0x00, 0x02, 0x08, 0x10, 0x00,
+};
+
+static struct mxt_platform_data mxt_platform_data = {
+ .config = mxt_init_vals,
+ .config_length = ARRAY_SIZE(mxt_init_vals),
+
+ .x_line = 18,
+ .y_line = 11,
+ .x_size = 1024,
+ .y_size = 600,
+ .blen = 0x1,
+ .threshold = 0x28,
+ .voltage = 2800000, /* 2.8V */
+ .orient = MXT_DIAGONAL_COUNTER,
+ .irqflags = IRQF_TRIGGER_FALLING,
+};
+
+static struct s3c2410_platform_i2c i2c3_data __initdata = {
+ .flags = 0,
+ .bus_num = 3,
+ .slave_addr = 0x10,
+ .frequency = 400 * 1000,
+ .sda_delay = 100,
+};
+
+static struct i2c_board_info i2c3_devs[] __initdata = {
+ {
+ I2C_BOARD_INFO("atmel_mxt_ts", 0x4a),
+ .platform_data = &mxt_platform_data,
+ .irq = IRQ_EINT(4),
+ },
+};
+
+static void __init nuri_tsp_init(void)
+{
+ int gpio;
+
+ /* TOUCH_INT: XEINT_4 */
+ gpio = EXYNOS4_GPX0(4);
+ gpio_request(gpio, "TOUCH_INT");
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+}
+
/* GPIO I2C 5 (PMIC) */
static struct i2c_board_info i2c5_devs[] __initdata = {
/* max8997, To be updated */
@@ -283,6 +368,7 @@ static struct platform_device *nuri_devices[] __initdata = {
&s3c_device_wdt,
&s3c_device_timer[0],
&s5p_device_ehci,
+ &s3c_device_i2c3,
/* NURI Devices */
&nuri_gpio_keys,
@@ -300,8 +386,11 @@ static void __init nuri_map_io(void)
static void __init nuri_machine_init(void)
{
nuri_sdhci_init();
+ nuri_tsp_init();
i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
+ s3c_i2c3_set_platdata(&i2c3_data);
+ i2c_register_board_info(3, i2c3_devs, ARRAY_SIZE(i2c3_devs));
i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
nuri_ehci_init();
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 12:48:41 +0000