Patchwork [U-Boot,v2,6/6] arm:trats: add support for new I2C framework

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Submitter Piotr Wilczek
Date Nov. 20, 2012, 12:19 p.m.
Message ID <1353413947-25976-7-git-send-email-p.wilczek@samsung.com>
Download mbox | patch
Permalink /patch/200316/
State Superseded
Delegated to: Heiko Schocher
Headers show

Comments

Piotr Wilczek - Nov. 20, 2012, 12:19 p.m.
This enables new i2c framework on Trats board.
Hardware s3c24x0 i2c driver is used instead of software i2c.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
---
Changes for v2:
- hardware i2c outputs configuration moved to i2c_init_board(void) function
- used define instead of fix number on i2c_set_bus_num();
- keep soft_i2c_adap[0]
- changed i2c related names to s3c24x0 driver specfic:
	CONFIG_MAX_I2C_NUM -> CONFIG_SYS_I2C_S3C24X0_MAX_NUM
	CONFIG_DRIVER_S3C24X0_I2C -> CONFIG_SYS_I2C_S3C24X0
	CONFIG_SYS_I2C_SPEED/SLAVE -> CONFIG_SYS_I2C_S3C24X0_SPEED/SLAVE
- removed CONFIG_SYS_I2C_BUSSES
---
 board/samsung/trats/trats.c |   17 +++++++++++++----
 include/configs/trats.h     |   35 +++++++++++++++++++----------------
 2 files changed, 32 insertions(+), 20 deletions(-)

Patch

diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index e11a892..393a910 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -24,8 +24,10 @@ 
  */
 
 #include <common.h>
+#include <i2c.h>
 #include <lcd.h>
 #include <asm/io.h>
+#include <asm/arch/pinmux.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
@@ -77,14 +79,17 @@  int board_init(void)
 
 void i2c_init_board(void)
 {
-	struct exynos4_gpio_part1 *gpio1 =
-		(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
+	int err;
 	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);
+	err = exynos_pinmux_config(I2C_5, PINMUX_FLAG_NONE);
+	if (err) {
+		debug("I2C%d not configured\n", (I2C_5));
+		return;
+	}
+
 	/* I2C_9 -> FG */
 	s5p_gpio_direction_output(&gpio2->y4, 0, 1);
 	s5p_gpio_direction_output(&gpio2->y4, 1, 1);
@@ -415,6 +420,8 @@  static int lcd_power(void)
 	int ret = 0;
 	struct pmic *p = get_pmic();
 
+	i2c_set_bus_num(CONFIG_SYS_I2C_PMIC_BUS_NUM);
+
 	if (pmic_probe(p))
 		return 0;
 
@@ -475,6 +482,8 @@  static int mipi_power(void)
 	int ret = 0;
 	struct pmic *p = get_pmic();
 
+	i2c_set_bus_num(CONFIG_SYS_I2C_PMIC_BUS_NUM);
+
 	if (pmic_probe(p))
 		return 0;
 
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 106fd37..1083e9b 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -33,6 +33,7 @@ 
 #define CONFIG_SAMSUNG		/* in a SAMSUNG core */
 #define CONFIG_S5P		/* which is in a S5P Family */
 #define CONFIG_EXYNOS4210	/* which is in a EXYNOS4210 */
+#define CONFIG_EXYNOS4
 #define CONFIG_TRATS		/* working with TRATS */
 #define CONFIG_TIZEN		/* TIZEN lib */
 
@@ -211,31 +212,33 @@ 
 #define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_LOAD_ADDR - GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_CACHELINE_SIZE       32
 
-
 #define CONFIG_SYS_I2C
 #define CONFIG_SYS_I2C_SOFT		/* I2C bit-banged */
 #define CONFIG_SYS_I2C_SOFT_SPEED	50000
 #define CONFIG_SYS_I2C_SOFT_SLAVE	0xFE
-#define CONFIG_SYS_I2C_ADAPTERS		{&soft_i2c_adap[0]}
 #define CONFIG_SOFT_I2C_READ_REPEATED_START
 #define CONFIG_SYS_I2C_INIT_BOARD
-#define CONFIG_I2C_MULTI_BUS
-#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)
+#define CONFIG_SYS_I2C_S3C24X0
+#define CONFIG_SYS_I2C_S3C24X0_MAX_NUM	8
+#define CONFIG_SYS_I2C_S3C24X0_SPEED	100000
+#define CONFIG_SYS_I2C_S3C24X0_SLAVE	0x0
+#define CONFIG_CMD_I2C
+
+#define CONFIG_SYS_I2C_ADAPTERS		{&soft_i2c_adap[0], \
+					&s3c24x0_i2c_adap[5], \
+					}
+#define CONFIG_SYS_NUM_I2C_ADAPTERS 2
+#define CONFIG_SYS_I2C_BUSSES		{{0, {{{0, "SOFT"}, 0x00, 0} } }, \
+					{1, {{{0, "S3C24X0"}, 0x00, 5} } }, \
+					}
+#define CONFIG_SYS_NUM_I2C_BUSSES	2
+#define CONFIG_SYS_I2C_PMIC_BUS_NUM	1
 
-/* 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)
+#include <asm/arch/gpio.h>
 
-#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_SOFT_I2C_GPIO_SCL exynos4_gpio_part2_get_nr(y4, 1)
+#define CONFIG_SOFT_I2C_GPIO_SDA exynos4_gpio_part2_get_nr(y4, 0)
 
 #define CONFIG_PMIC
 #define CONFIG_PMIC_I2C