diff options
Diffstat (limited to 'board/delta/delta.c')
| -rw-r--r-- | board/delta/delta.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/board/delta/delta.c b/board/delta/delta.c new file mode 100644 index 0000000000..b7671dd3b7 --- /dev/null +++ b/board/delta/delta.c @@ -0,0 +1,156 @@ +/* + * (C) Copyright 2002 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <i2c.h> +#include <da9030.h> +#include <asm/arch/pxa-regs.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ + +static void init_DA9030(void); + +/* + * Miscelaneous platform dependent initialisations + */ + +int board_init (void) +{ + /* memory and cpu-speed are setup before relocation */ + /* so we do _nothing_ here */ + + /* arch number of Lubbock-Board mk@tbd: fix this! */ + gd->bd->bi_arch_number = MACH_TYPE_LUBBOCK; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0xa0000100; + + return 0; +} + +int board_late_init(void) +{ + setenv("stdout", "serial"); + setenv("stderr", "serial"); + init_DA9030(); + return 0; +} + + +int dram_init (void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + gd->bd->bi_dram[1].start = PHYS_SDRAM_2; + gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; + gd->bd->bi_dram[2].start = PHYS_SDRAM_3; + gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE; + gd->bd->bi_dram[3].start = PHYS_SDRAM_4; + gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE; + + 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 |
