Merge branch 'master' of git://git.denx.de/u-boot-i2c

8 files changed, 162 insertions, 8 deletions

diff --git a/arch/arm/include/asm/arch-omap4/cpu.h b/arch/arm/include/asm/arch-omap4/cpu.h
index a8c4c60..3a0bfbf 100644
--- a/arch/arm/include/asm/arch-omap4/cpu.h
+++ b/arch/arm/include/asm/arch-omap4/cpu.h
@@ -138,6 +138,7 @@ struct watchdog {
 #define I2C_BASE1		(OMAP44XX_L4_PER_BASE + 0x70000)
 #define I2C_BASE2		(OMAP44XX_L4_PER_BASE + 0x72000)
 #define I2C_BASE3		(OMAP44XX_L4_PER_BASE + 0x60000)
+#define I2C_BASE4		(OMAP44XX_L4_PER_BASE + 0x350000)
 
 /* MUSB base */
 #define MUSB_BASE		(OMAP44XX_L4_CORE_BASE + 0xAB000)
diff --git a/arch/arm/include/asm/arch-omap4/i2c.h b/arch/arm/include/asm/arch-omap4/i2c.h
index a91b4c2..02ee2f8 100644
--- a/arch/arm/include/asm/arch-omap4/i2c.h
+++ b/arch/arm/include/asm/arch-omap4/i2c.h
@@ -23,7 +23,7 @@
 #ifndef _OMAP4_I2C_H_
 #define _OMAP4_I2C_H_
 
-#define I2C_BUS_MAX	3
+#define I2C_BUS_MAX	4
 #define I2C_DEFAULT_BASE	I2C_BASE1
 
 struct i2c {
diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile
new file mode 100644
index 0000000..0bcd594
--- /dev/null
+++ b/board/samsung/common/Makefile
@@ -0,0 +1,43 @@
+#
+# Copyright (C) 2012 Samsung Electronics
+# Lukasz Majewski <l.majewski@samsung.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)libsamsung.o
+
+COBJS-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o
+
+SRCS    := $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/samsung/common/multi_i2c.c b/board/samsung/common/multi_i2c.c
new file mode 100644
index 0000000..d6c3d37
--- /dev/null
+++ b/board/samsung/common/multi_i2c.c
@@ -0,0 +1,65 @@
+/*
+ *  Copyright (C) 2012 Samsung Electronics
+ *  Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+/* Handle multiple I2C buses instances */
+int get_multi_scl_pin(void)
+{
+	unsigned int bus = I2C_GET_BUS();
+
+	switch (bus) {
+	case I2C_0: /* I2C_0 definition - compatibility layer */
+	case I2C_5:
+		return CONFIG_SOFT_I2C_I2C5_SCL;
+	case I2C_9:
+		return CONFIG_SOFT_I2C_I2C9_SCL;
+	default:
+		printf("I2C_%d not supported!\n", bus);
+	};
+
+	return 0;
+}
+
+int get_multi_sda_pin(void)
+{
+	unsigned int bus = I2C_GET_BUS();
+
+	switch (bus) {
+	case I2C_0: /* I2C_0 definition - compatibility layer */
+	case I2C_5:
+		return CONFIG_SOFT_I2C_I2C5_SDA;
+	case I2C_9:
+		return CONFIG_SOFT_I2C_I2C9_SDA;
+	default:
+		printf("I2C_%d not supported!\n", bus);
+	};
+
+	return 0;
+}
+
+int multi_i2c_init(void)
+{
+	return 0;
+}
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 4f9cb5a..e11a892 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -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) +
diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
index 978507b..094305f 100644
--- a/drivers/i2c/omap24xx_i2c.c
+++ b/drivers/i2c/omap24xx_i2c.c
@@ -442,6 +442,14 @@ int i2c_set_bus_num(unsigned int bus)
 		return -1;
 	}
 
+#if I2C_BUS_MAX == 4
+	if (bus == 3)
+		i2c_base = (struct i2c *)I2C_BASE4;
+	else
+	if (bus == 2)
+		i2c_base = (struct i2c *)I2C_BASE3;
+	else
+#endif
 #if I2C_BUS_MAX == 3
 	if (bus == 2)
 		i2c_base = (struct i2c *)I2C_BASE3;
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 794b6fb..b3b5a3d 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -212,18 +212,28 @@
 #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
diff --git a/include/i2c.h b/include/i2c.h
index 1f35acf..16f099d 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -250,4 +250,16 @@ static inline void I2C_SET_BUS(unsigned int bus)
 		i2c_set_bus_num(bus);
 }
 
+/* Multi I2C definitions */
+enum {
+	I2C_0, I2C_1, I2C_2, I2C_3, I2C_4, I2C_5, I2C_6, I2C_7,
+	I2C_8, I2C_9, I2C_10,
+};
+
+/* Multi I2C busses handling */
+#ifdef CONFIG_SOFT_I2C_MULTI_BUS
+extern int get_multi_scl_pin(void);
+extern int get_multi_sda_pin(void);
+extern int multi_i2c_init(void);
+#endif
 #endif	/* _I2C_H_ */