/* * (C) Copyright 2005 * Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.com * * 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 #include #include #include extern void lxt971_no_sleep(void); /* fpga configuration data - not compressed, generated by bin2c */ const unsigned char fpgadata[] = { #include "fpgadata.c" }; int filesize = sizeof(fpgadata); int board_early_init_f (void) { /* * IRQ 0-15 405GP internally generated; active high; level sensitive * IRQ 16 405GP internally generated; active low; level sensitive * IRQ 17-24 RESERVED * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive */ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ mtdcr(uicer, 0x00000000); /* disable all ints */ mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/ mtdcr(uicpr, 0xFFFFFF80); /* set int polarities */ mtdcr(uictr, 0x10000000); /* set int trigger levels */ mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ /* * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us */ mtebc (epcr, 0xa8400000); /* ebc always driven */ /* * Reset CPLD via GPIO12 (CS3) pin */ out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_PLD_RESET); udelay(1000); /* wait 1ms */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_PLD_RESET); udelay(1000); /* wait 1ms */ return 0; } /* ------------------------------------------------------------------------- */ int misc_init_f (void) { return 0; /* dummy implementation */ } int misc_init_r (void) { DECLARE_GLOBAL_DATA_PTR; /* adjust flash start and offset */ gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize; gd->bd->bi_flashoffset = 0; /* * Setup and enable EEPROM write protection */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_EEPROM_WP); /* * Set NAND-FLASH GPIO signals to default */ out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE)); out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE); return (0); } /* * Check Board Identity: */ int checkboard (void) { char str[64]; int flashcnt; int delay; volatile unsigned char *led_reg = (unsigned char *)((ulong)CFG_PLD_BASE + 0x1000); volatile unsigned char *ver_reg = (unsigned char *)((ulong)CFG_PLD_BASE + 0x1001); puts ("Board: "); if (getenv_r("serial#", str, sizeof(str)) == -1) { puts ("### No HW ID - assuming CMS700"); } else { puts(str); } printf(" (PLD-Version=%02d)\n", *ver_reg); /* * Flash LEDs */ for (flashcnt = 0; flashcnt < 3; flashcnt++) { *led_reg = 0x00; /* LEDs off */ for (delay = 0; delay < 100; delay++) udelay(1000); *led_reg = 0x0f; /* LEDs on */ for (delay = 0; delay < 50; delay++) udelay(1000); } *led_reg = 0x70; return 0; } /* ------------------------------------------------------------------------- */ long int initdram (int board_type) { unsigned long val; mtdcr(memcfga, mem_mb0cf); val = mfdcr(memcfgd); #if 0 printf("\nmb0cf=%x\n", val); /* test-only */ printf("strap=%x\n", mfdcr(strap)); /* test-only */ #endif return (4*1024*1024 << ((val & 0x000e0000) >> 17)); } /* ------------------------------------------------------------------------- */ #if defined(CFG_EEPROM_WREN) /* Input: I2C address of EEPROM device to enable. * -1: deliver current state * 0: disable write * 1: enable write * Returns: -1: wrong device address * 0: dis-/en- able done * 0/1: current state if was -1. */ int eeprom_write_enable (unsigned dev_addr, int state) { if (CFG_I2C_EEPROM_ADDR != dev_addr) { return -1; } else { switch (state) { case 1: /* Enable write access, clear bit GPIO_SINT2. */ out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_EEPROM_WP); state = 0; break; case 0: /* Disable write access, set bit GPIO_SINT2. */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_EEPROM_WP); state = 0; break; default: /* Read current status back. */ state = (0 == (in32(GPIO0_OR) & CFG_EEPROM_WP)); break; } } return state; } int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { int query = argc == 1; int state = 0; if (query) { /* Query write access state. */ state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, -1); if (state < 0) { puts ("Query of write access state failed.\n"); } else { printf ("Write access for device 0x%0x is %sabled.\n", CFG_I2C_EEPROM_ADDR, state ? "en" : "dis"); state = 0; } } else { if ('0' == argv[1][0]) { /* Disable write access. */ state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 0); } else { /* Enable write access. */ state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 1); } if (state < 0) { puts ("Setup of write access state failed.\n"); } } return state; } U_BOOT_CMD(eepwren, 2, 0, do_eep_wren, "eepwren - Enable / disable / query EEPROM write access\n", NULL); #endif /* #if defined(CFG_EEPROM_WREN) */ /* ------------------------------------------------------------------------- */ #if (CONFIG_COMMANDS & CFG_CMD_NAND) #include extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE]; void nand_init(void) { nand_probe(CFG_NAND_BASE); if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) { print_size(nand_dev_desc[0].totlen, "\n"); } } #endif void reset_phy(void) { #ifdef CONFIG_LXT971_NO_SLEEP /* * Disable sleep mode in LXT971 */ lxt971_no_sleep(); #endif }