s5pc210: universal: LP3974 initialization updated.

Added initial values for all ONOFF(Enable) registers.

diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c
index 8ce876a..e5aeb65 100644 (file)
--- a/board/samsung/universal_c210/universal.c
+++ b/board/samsung/universal_c210/universal.c
@@ -259,45 +259,45 @@ static void init_pmic_lp3974(void)
        unsigned char addr;
        unsigned char val[2];
 
-       addr = 0xCC >> 1;       /* lp3974 */
+       addr = 0xCC >> 1; /* LP3974 */
        if (lp3974_probe())
                return;
 
-       /* ONOFF1 */
-       /* Please remove it when bootloader works are finised */
-#if 0
-       i2c_read_r(addr, LP3974_REG_ONOFF1, 1, val, 1);
-       val[0] &= ~LP3974_LDO3;
+       /*
+        * Because the data sheet of LP3974 does NOT mention default
+        * register values of ONOFF1~4 (ENABLE1~4), we ignore the given
+        * default values and set as we want
+        *
+        * ONOFF1
+        * Buck1 ON, Buck2 ON, Buck3 OFF, Buck4 Off
+        * LDO2 ON, LDO3 OFF, LDO4 OFF, LDO5 ON
+        */
+       val[0] = 0xE9;
        i2c_write(addr, LP3974_REG_ONOFF1, 1, val, 1);
-#endif
 
-       /* ONOFF2 */
-       i2c_read_r(addr, LP3974_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)
+        * ONOFF2
+        * LDO6 ON, LDO7 ON, LDO8 ON, LDO9 ON,
+        * LDO10 OFF, LDO11 OFF, LDO12 OFF, LDO13 OFF
         */
-       val[0] &= ~(LP3974_LDO10 | LP3974_LDO11 |
-                       LP3974_LDO12 | LP3974_LDO13);
-
-       val[0] |= LP3974_LDO7;          /* LDO7: VLCD_1.8V */
-
+       val[0] = 0xF0;
        i2c_write(addr, LP3974_REG_ONOFF2, 1, val, 1);
-       i2c_read_r(addr, LP3974_REG_ONOFF2, 1, val, 1);
 
-       /* ONOFF3 */
-       i2c_read_r(addr, LP3974_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)
+        * ONOFF3
+        * LDO14 OFF, LDO15 OFF, LGO16 OFF, LDO17 ON
+        * EPWRHOLD OFF, EBATTMON OFF, ELBCNFG2 OFF, ELBCNFG1 OFF
         */
-       val[0] &= ~(LP3974_LDO14 | LP3974_LDO15 |
-                       LP3974_LDO16 | LP3974_LDO17);
-
-       val[0] |= LP3974_LDO17; /* LDO17: VCC_3.0V_LCD */
-
+       val[0] = 0x10;
        i2c_write(addr, LP3974_REG_ONOFF3, 1, val, 1);
-       i2c_read_r(addr, LP3974_REG_ONOFF3, 1, val, 1);
+
+       /*
+        * ONOFF4
+        * EN32kAP ON, EN32kCP ON, ENVICHG ON, ENRAMP ON,
+        * RAMP 12mV/us (fastest)
+        */
+       val[0] = 0xFB;
+       i2c_write(addr, LP3974_REG_ONOFF4, 1, val, 1);
 }
 
 static void init_pmic_max8952(void)