diff options
| author | Markus Klotzbuecher <mk@denx.de> | 2006-03-24 12:23:27 +0100 |
|---|---|---|
| committer | Markus Klotzbücher <mk@pollux.denx.de> | 2006-03-24 12:23:27 +0100 |
| commit | ba70d6a4170ebbec5513f01ceae66a200102ba9a (patch) | |
| tree | 2a3031d73fc67445a3792c870720fe6ce3cffff3 /board/delta | |
| parent | 552fc624f28d5db7b25f38c4e104fb7255d7df6b (diff) | |
| download | u-boot-ba70d6a4170ebbec5513f01ceae66a200102ba9a.tar.gz u-boot-ba70d6a4170ebbec5513f01ceae66a200102ba9a.tar.xz u-boot-ba70d6a4170ebbec5513f01ceae66a200102ba9a.zip | |
delta board: DA9030 initialization and i2c support. Some minor changes to
make the pxa i2c driver work with the monahans cpu.
Diffstat (limited to 'board/delta')
| -rw-r--r-- | board/delta/delta.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/board/delta/delta.c b/board/delta/delta.c index 3ffcc2af9b..6ef7e2fc26 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 @@ int board_late_init(void) { setenv("stdout", "serial"); setenv("stderr", "serial"); + init_DA9030(); return 0; } @@ -73,3 +78,65 @@ int dram_init (void) 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 |