/* * (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 <malloc.h> #include <command.h> #include <asm/arch/pxa-regs.h> DECLARE_GLOBAL_DATA_PTR; /* ------------------------------------------------------------------------- */ static void init_DA9030(void); static void keys_init(void); static void get_pressed_keys(uchar *s); static uchar *key_match(uchar *kbd_data); /* * 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) { #ifdef DELTA_CHECK_KEYBD uchar kbd_data[KEYBD_DATALEN]; char keybd_env[2 * KEYBD_DATALEN + 1]; char *str; int i; #endif /* DELTA_CHECK_KEYBD */ setenv("stdout", "serial"); setenv("stderr", "serial"); #ifdef DELTA_CHECK_KEYBD keys_init(); memset(kbd_data, '\0', KEYBD_DATALEN); /* check for pressed keys and setup keybd_env */ get_pressed_keys(kbd_data); for (i = 0; i < KEYBD_DATALEN; ++i) { sprintf (keybd_env + i + i, "%02X", kbd_data[i]); } setenv ("keybd", keybd_env); str = strdup ((char *)key_match (kbd_data)); /* decode keys */ # ifdef CONFIG_PREBOOT /* automatically configure "preboot" command on key match */ setenv ("preboot", str); /* set or delete definition */ # endif /* CONFIG_PREBOOT */ if (str != NULL) { free (str); } #endif /* DELTA_CHECK_KEYBD */ init_DA9030(); return 0; } /* * Magic Key Handling, mainly copied from board/lwmon/lwmon.c */ #ifdef DELTA_CHECK_KEYBD static uchar kbd_magic_prefix[] = "key_magic"; static uchar kbd_command_prefix[] = "key_cmd"; /* * Get pressed keys * s is a buffer of size KEYBD_DATALEN-1 */ static void get_pressed_keys(uchar *s) { unsigned long val; val = GPLR3; if(val & (1<<31)) *s++ = KEYBD_KP_DKIN0; if(val & (1<<18)) *s++ = KEYBD_KP_DKIN1; if(val & (1<<29)) *s++ = KEYBD_KP_DKIN2; if(val & (1<<22)) *s++ = KEYBD_KP_DKIN5; } static void keys_init() { CKENB |= CKENB_7_GPIO; udelay(100); /* Configure GPIOs */ GPIO127 = 0xa840; /* KP_DKIN0 */ GPIO114 = 0xa840; /* KP_DKIN1 */ GPIO125 = 0xa840; /* KP_DKIN2 */ GPIO118 = 0xa840; /* KP_DKIN5 */ /* Configure GPIOs as inputs */ GPDR3 &= ~(1<<31 | 1<<18 | 1<<29 | 1<<22); GCDR3 = (1<<31 | 1<<18 | 1<<29 | 1<<22); udelay(100); } static int compare_magic (uchar *kbd_data, uchar *str) { /* uchar compare[KEYBD_DATALEN-1]; */ uchar compare[KEYBD_DATALEN]; char *nxt; int i; /* Don't include modifier byte */ /* memcpy (compare, kbd_data+1, KEYBD_DATALEN-1); */ memcpy (compare, kbd_data, KEYBD_DATALEN); for (; str != NULL; str = (*nxt) ? (uchar *)(nxt+1) : (uchar *)nxt) { uchar c; int k; c = (uchar) simple_strtoul ((char *)str, (char **) (&nxt), 16); if (str == (uchar *)nxt) { /* invalid character */ break; } /* * Check if this key matches the input. * Set matches to zero, so they match only once * and we can find duplicates or extra keys */ for (k = 0; k < sizeof(compare); ++k) { if (compare[k] == '\0') /* only non-zero entries */ continue; if (c == compare[k]) { /* found matching key */ compare[k] = '\0'; break; } } if (k == sizeof(compare)) { return -1; /* unmatched key */ } } /* * A full match leaves no keys in the `compare' array, */ for (i = 0; i < sizeof(compare); ++i) { if (compare[i]) { return -1; } } return 0; } static uchar *key_match (uchar *kbd_data) { char magic[sizeof (kbd_magic_prefix) + 1]; uchar *suffix; char *kbd_magic_keys; /* * The following string defines the characters that can pe appended * to "key_magic" to form the names of environment variables that * hold "magic" key codes, i. e. such key codes that can cause * pre-boot actions. If the string is empty (""), then only * "key_magic" is checked (old behaviour); the string "125" causes * checks for "key_magic1", "key_magic2" and "key_magic5", etc. */ if ((kbd_magic_keys = getenv ("magic_keys")) == NULL) kbd_magic_keys = ""; /* loop over all magic keys; * use '\0' suffix in case of empty string */ for (suffix=(uchar *)kbd_magic_keys; *suffix || suffix==(uchar *)kbd_magic_keys; ++suffix) { sprintf (magic, "%s%c", kbd_magic_prefix, *suffix); #if 0 printf ("### Check magic \"%s\"\n", magic); #endif if (compare_magic(kbd_data, (uchar *)getenv(magic)) == 0) { char cmd_name[sizeof (kbd_command_prefix) + 1]; char *cmd; sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix); cmd = getenv (cmd_name); #if 0 printf ("### Set PREBOOT to $(%s): \"%s\"\n", cmd_name, cmd ? cmd : "<<NULL>>"); #endif *kbd_data = *suffix; return ((uchar *)cmd); } } #if 0 printf ("### Delete PREBOOT\n"); #endif *kbd_data = '\0'; return (NULL); } int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { uchar kbd_data[KEYBD_DATALEN]; char keybd_env[2 * KEYBD_DATALEN + 1]; int i; /* Read keys */ get_pressed_keys(kbd_data); puts ("Keys:"); for (i = 0; i < KEYBD_DATALEN; ++i) { sprintf (keybd_env + i + i, "%02X", kbd_data[i]); printf (" %02x", kbd_data[i]); } putc ('\n'); setenv ("keybd", keybd_env); return 0; } U_BOOT_CMD( kbd, 1, 1, do_kbd, "kbd - read keyboard status\n", NULL ); #endif /* DELTA_CHECK_KEYBD */ 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