delta board: DA9030 initialization and i2c support. Some minor changes to
make the pxa i2c driver work with the monahans cpu.
diff --git a/board/delta/delta.c b/board/delta/delta.c
index 3ffcc2a..6ef7e2f 100644
--- 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
@@ -54,6 +58,7 @@
{
setenv("stdout", "serial");
setenv("stderr", "serial");
+ init_DA9030();
return 0;
}
@@ -73,3 +78,65 @@
return 0;
}
+
+/* initialize the DA9030 Power Controller */
+static void init_DA9030()
+{
+ uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
+
+ /* setup I2C GPIO's */
+ GPIO32 = 0x801; /* SCL = Alt. Fkt. 1 */
+ GPIO33 = 0x801; /* SDA = Alt. Fkt. 1 */
+
+ /* rising Edge on EXTON */
+ GPIO17 = 0x8800;
+ udelay(5);
+ GPIO17 = 0xc800;
+ udelay(100000); /* wait for DA9030 */
+
+ /* reset the watchdog and go active (0xec) */
+ val = (SYS_CONTROL_A_HWRES_ENABLE |
+ (0x6<<4) |
+ SYS_CONTROL_A_WDOG_ACTION |
+ SYS_CONTROL_A_WATCHDOG);
+
+ i2c_reg_write(addr, SYS_CONTROL_A, val);
+
+ 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