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i2c:soft:multi: Enable soft I2C multibus at Trats development board

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This commit enables multibus handling at Samsung's Trats development board.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Łukasz Majewski 2012-09-04 23:15:21 +00:00 committed by Heiko Schocher
parent 7ca8f73a0a
commit fd8dca83ed
2 changed files with 32 additions and 7 deletions
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15
board/samsung/trats/trats.c
View File

@ -75,6 +75,21 @@ int board_init(void)
return 0;
}
void i2c_init_board(void)
{
struct exynos4_gpio_part1 *gpio1 =
(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
struct exynos4_gpio_part2 *gpio2 =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
/* I2C_5 -> PMIC */
s5p_gpio_direction_output(&gpio1->b, 7, 1);
s5p_gpio_direction_output(&gpio1->b, 6, 1);
/* I2C_9 -> FG */
s5p_gpio_direction_output(&gpio2->y4, 0, 1);
s5p_gpio_direction_output(&gpio2->y4, 1, 1);
}
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) +

24
include/configs/trats.h
View File

@ -211,18 +211,28 @@
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_LOAD_ADDR - GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_CACHELINE_SIZE 32
#include <asm/arch/gpio.h>
/*
* I2C Settings
*/
#define CONFIG_SOFT_I2C_GPIO_SCL exynos4_gpio_part1_get_nr(b, 7)
#define CONFIG_SOFT_I2C_GPIO_SDA exynos4_gpio_part1_get_nr(b, 6)
#define CONFIG_SOFT_I2C
#define CONFIG_SOFT_I2C_READ_REPEATED_START
#define CONFIG_SYS_I2C_INIT_BOARD
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_I2C_MULTI_BUS
#define CONFIG_SYS_MAX_I2C_BUS 7
#define CONFIG_SOFT_I2C_MULTI_BUS
#define CONFIG_SYS_MAX_I2C_BUS 15
#include <asm/arch/gpio.h>
/* I2C PMIC */
#define CONFIG_SOFT_I2C_I2C5_SCL exynos4_gpio_part1_get_nr(b, 7)
#define CONFIG_SOFT_I2C_I2C5_SDA exynos4_gpio_part1_get_nr(b, 6)
/* I2C FG */
#define CONFIG_SOFT_I2C_I2C9_SCL exynos4_gpio_part2_get_nr(y4, 1)
#define CONFIG_SOFT_I2C_I2C9_SDA exynos4_gpio_part2_get_nr(y4, 0)
#define CONFIG_SOFT_I2C_GPIO_SCL get_multi_scl_pin()
#define CONFIG_SOFT_I2C_GPIO_SDA get_multi_sda_pin()
#define I2C_INIT multi_i2c_init()
#define CONFIG_PMIC
#define CONFIG_PMIC_I2C