ARM: pxa168/teton bga: add board support for i2c and rtc-ds1337

Defined I2C/ALARM pin definitions
DS1337 RTC alarm support is tied to RTC_INT_GPIO

Signed-off-by: Mark F. Brown <mark.brown314@gmail.com>
Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
index f556b20..a4a375c 100644 (file)
--- a/arch/arm/mach-mmp/teton_bga.c
+++ b/arch/arm/mach-mmp/teton_bga.c
@@ -18,6 +18,7 @@
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <plat/pxa27x_keypad.h>
+#include <linux/i2c.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -38,6 +39,13 @@ static unsigned long teton_bga_pin_config[] __initdata = {
        GPIO110_KP_MKIN0,
        GPIO111_KP_MKOUT7,
        GPIO112_KP_MKOUT6,
+
+       /* I2C Bus */
+       GPIO105_CI2C_SDA,
+       GPIO106_CI2C_SCL,
+
+       /* RTC */
+       GPIO78_GPIO,
 };
 
 static unsigned int teton_bga_matrix_key_map[] = {
@@ -55,6 +63,13 @@ static struct pxa27x_keypad_platform_data teton_bga_keypad_info __initdata = {
        .debounce_interval      = 30,
 };
 
+static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
+       {
+               I2C_BOARD_INFO("ds1337", 0x68),
+               .irq = gpio_to_irq(RTC_INT_GPIO)
+       },
+};
+
 static void __init teton_bga_init(void)
 {
        mfp_config(ARRAY_AND_SIZE(teton_bga_pin_config));
@@ -62,6 +77,7 @@ static void __init teton_bga_init(void)
        /* on-chip devices */
        pxa168_add_uart(1);
        pxa168_add_keypad(&teton_bga_keypad_info);
+       pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
 }
 
 MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")