s5pc210: universal: support the pmic

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c
index ff100d2..d4b0ff4 100644 (file)
--- a/board/samsung/universal_c210/universal.c
+++ b/board/samsung/universal_c210/universal.c
@@ -164,10 +164,98 @@ static void check_auto_burn(void)
        memset(magic_base, 0, 2);
 }
 
+#define MAX8998_REG_ONOFF1     0x11
+#define MAX8998_REG_ONOFF2     0x12
+#define MAX8998_REG_ONOFF3     0x13
+#define MAX8998_REG_ONOFF4     0x14
+#define MAX8998_REG_LDO7       0x21
+#define MAX8998_REG_LDO17      0x29
+/* ONOFF1 */
+#define MAX8998_LDO3           (1 << 2)
+/* ONOFF2 */
+#define MAX8998_LDO6           (1 << 7)
+#define MAX8998_LDO7           (1 << 6)
+#define MAX8998_LDO8           (1 << 5)
+#define MAX8998_LDO9           (1 << 4)
+#define MAX8998_LDO10          (1 << 3)
+#define MAX8998_LDO11          (1 << 2)
+#define MAX8998_LDO12          (1 << 1)
+#define MAX8998_LDO13          (1 << 0)
+/* ONOFF3 */
+#define MAX8998_LDO14          (1 << 7)
+#define MAX8998_LDO15          (1 << 6)
+#define MAX8998_LDO16          (1 << 5)
+#define MAX8998_LDO17          (1 << 4)
+
+static int max8998_probe(void)
+{
+       unsigned char addr = 0xCC >> 1;
+
+       i2c_set_bus_num(I2C_5);
+
+       if (i2c_probe(addr)) {
+               puts("Can't found max8998\n");
+               return 1;
+       }
+
+       return 0;
+}
+
+static void init_pmic(void)
+{
+       unsigned char addr;
+       unsigned char val[2];
+
+       addr = 0xCC >> 1;       /* max8998 */
+       if (max8998_probe())
+               return;
+
+       /* ONOFF1 */
+#if 0
+       /* disable for usb.. will be enabled */
+       i2c_read(addr, MAX8998_REG_ONOFF1, 1, val, 1);
+       val[0] &= ~MAX8998_LDO3;
+       i2c_write(addr, MAX8998_REG_ONOFF1, 1, val, 1);
+#endif
+
+       /* ONOFF2 */
+       i2c_read(addr, MAX8998_REG_ONOFF2, 1, val, 1);
+       /*
+        * Disable LDO10(VPLL_1.1V), LDO11(CAM_IO_2.8V),
+        * LDO12(CAM_ISP_1.2V), LDO13(CAM_A_2.8V)
+        */
+       val[0] &= ~(MAX8998_LDO10 | MAX8998_LDO11 |
+                       MAX8998_LDO12 | MAX8998_LDO13);
+
+       val[0] |= MAX8998_LDO7;         /* LDO7: VLCD_1.8V */
+
+       i2c_write(addr, MAX8998_REG_ONOFF2, 1, val, 1);
+       i2c_read(addr, MAX8998_REG_ONOFF2, 1, val, 1);
+
+       /* ONOFF3 */
+       i2c_read(addr, MAX8998_REG_ONOFF3, 1, val, 1);
+       /*
+        * Disable LDO14(CAM_CIF_1.8), LDO15(CAM_AF_3.3V),
+        * LDO16(VMIPI_1.8V), LDO17(CAM_8M_1.8V)
+        */
+       val[0] &= ~(MAX8998_LDO14 | MAX8998_LDO15 |
+                       MAX8998_LDO16 | MAX8998_LDO17);
+
+       val[0] |= MAX8998_LDO17;        /* LDO17: VCC_3.0V_LCD */
+
+       i2c_write(addr, MAX8998_REG_ONOFF3, 1, val, 1);
+       i2c_read(addr, MAX8998_REG_ONOFF3, 1, val, 1);
+}
+
 #ifdef CONFIG_MISC_INIT_R
 int misc_init_r(void)
 {
        check_auto_burn();
+
+       /* check max8998 */
+       init_pmic();
+
+       return 0;
 }
 #endif
 

diff --git a/include/configs/s5pc210_universal.h b/include/configs/s5pc210_universal.h
index 651ad1a..66cb4c7 100644 (file)
--- a/include/configs/s5pc210_universal.h
+++ b/include/configs/s5pc210_universal.h
@@ -332,6 +332,7 @@
 #include <i2c-gpio.h>
 #define CONFIG_S5P_GPIO_I2C    1
 #define CONFIG_SOFT_I2C                1
+#define CONFIG_SOFT_I2C_READ_REPEATED_START
 #define CONFIG_SYS_I2C_INIT_BOARD
 #define CONFIG_SYS_I2C_SPEED   50000
 #define CONFIG_I2C_MULTI_BUS