delta board: one more DA9030 fix.

[platform/kernel/u-boot.git] / board / delta / delta.c

diff --git a/board/delta/delta.c b/board/delta/delta.c
index e618ab9..d00d72d 100644 (file)
--- a/board/delta/delta.c
+++ b/board/delta/delta.c
@@ -26,9 +26,13 @@
  */
 
 #include <common.h>
+#include <i2c.h>
+#include <da9030.h>
+#include <asm/arch/pxa-regs.h>
 
 /* ------------------------------------------------------------------------- */
 
+static void init_DA9030(void);
 
 /*
  * Miscelaneous platform dependent initialisations
@@ -41,7 +45,7 @@ int board_init (void)
        /* memory and cpu-speed are setup before relocation */
        /* so we do _nothing_ here */
 
-       /* arch number of Lubbock-Board */
+       /* arch number of Lubbock-Board mk@tbd: fix this! */
        gd->bd->bi_arch_number = MACH_TYPE_LUBBOCK;
 
        /* adress of boot parameters */
@@ -54,6 +58,7 @@ int board_late_init(void)
 {
        setenv("stdout", "serial");
        setenv("stderr", "serial");
+       init_DA9030();
        return 0;
 }
 
@@ -73,3 +78,81 @@ int dram_init (void)
 
        return 0;
 }
+
+void i2c_init_board()
+{
+       CKENB |= (CKENB_4_I2C);
+
+       /* setup I2C GPIO's */
+       GPIO32 = 0x801;         /* SCL = Alt. Fkt. 1 */
+       GPIO33 = 0x801;         /* SDA = Alt. Fkt. 1 */
+}
+
+/* initialize the DA9030 Power Controller */
+static void init_DA9030()
+{
+       uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
+
+       CKENB |= CKENB_7_GPIO;
+       udelay(100);
+
+       /* Rising Edge on EXTON to reset DA9030 */
+       GPIO17 = 0x8800;        /* configure GPIO17, no pullup, -down */
+       GPDR0 |= (1<<17);       /* GPIO17 is output */
+       GSDR0 = (1<<17);
+       GPCR0 = (1<<17);        /* drive GPIO17 low */
+       GPSR0 = (1<<17);        /* drive GPIO17 high */
+
+#if CFG_DA9030_EXTON_DELAY
+       udelay((unsigned long) CFG_DA9030_EXTON_DELAY); /* wait for DA9030 */
+#endif
+       GPCR0 = (1<<17);        /* drive GPIO17 low */
+
+       /* reset the watchdog and go active (0xec) */
+       val = (SYS_CONTROL_A_HWRES_ENABLE |
+              (0x6<<4) |
+              SYS_CONTROL_A_WDOG_ACTION |
+              SYS_CONTROL_A_WATCHDOG);
+       if(i2c_write(addr, SYS_CONTROL_A, 1, &val, 1)) {
+               printf("Error accessing DA9030 via i2c.\n");
+               return;
+       }
+
+       i2c_reg_write(addr, REG_CONTROL_1_97, 0xfd); /* disable LDO1, enable LDO6 */
+       i2c_reg_write(addr, LDO2_3, 0xd1);      /* LDO2 =1,9V, LDO3=3,1V */
+       i2c_reg_write(addr, LDO4_5, 0xcc);      /* LDO2 =1,9V, LDO3=3,1V */
+       i2c_reg_write(addr, LDO6_SIMCP, 0x3e);  /* LDO6=3,2V, SIMCP = 5V support */
+       i2c_reg_write(addr, LDO7_8, 0xc9);      /* LDO7=2,7V, LDO8=3,0V */
+       i2c_reg_write(addr, LDO9_12, 0xec);     /* LDO9=3,0V, LDO12=3,2V */
+       i2c_reg_write(addr, BUCK, 0x0c);        /* Buck=1.2V */
+       i2c_reg_write(addr, REG_CONTROL_2_98, 0x7f); /* All LDO'S on 8,9,10,11,12,14 */
+       i2c_reg_write(addr, LDO_10_11, 0xcc);   /* LDO10=3.0V  LDO11=3.0V */
+       i2c_reg_write(addr, LDO_15, 0xae);      /* LDO15=1.8V, dislock first 3bit */
+       i2c_reg_write(addr, LDO_14_16, 0x05);   /* LDO14=2.8V, LDO16=NB */
+       i2c_reg_write(addr, LDO_18_19, 0x9c);   /* LDO18=3.0V, LDO19=2.7V */
+       i2c_reg_write(addr, LDO_17_SIMCP0, 0x2c); /* LDO17=3.0V, SIMCP=3V support */
+       i2c_reg_write(addr, BUCK2_DVC1, 0x9a);  /* Buck2=1.5V plus Update support of 520 MHz */
+       i2c_reg_write(addr, REG_CONTROL_2_18, 0x43); /* Ball on */
+       i2c_reg_write(addr, MISC_CONTROLB, 0x08); /* session valid enable */
+       i2c_reg_write(addr, USBPUMP, 0xc1);     /* start pump, ignore HW signals */
+
+       val = i2c_reg_read(addr, STATUS);
+       if(val & STATUS_CHDET)
+               printf("Charger detected, turning on LED.\n");
+       else {
+               printf("No charger detetected.\n");
+               /* undervoltage? print error and power down */
+       }
+}
+
+
+#if 0
+/* reset the DA9030 watchdog */
+void hw_watchdog_reset(void)
+{
+       uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
+       val = i2c_reg_read(addr, SYS_CONTROL_A);
+       val |= SYS_CONTROL_A_WATCHDOG;
+       i2c_reg_write(addr, SYS_CONTROL_A, val);
+}
+#endif