1 /* 2 * (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering 3 * 4 * Copyright (C) 2006 Micronas GmbH 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 19 * MA 02111-1307 USA 20 */ 21 22 #include <common.h> 23 #include <command.h> 24 #include <asm/mipsregs.h> 25 #include "vct.h" 26 27 #if defined(CONFIG_VCT_PREMIUM) 28 #define BOARD_NAME "PremiumD" 29 #elif defined(CONFIG_VCT_PLATINUM) 30 #define BOARD_NAME "PlatinumD" 31 #elif defined(CONFIG_VCT_PLATINUMAVC) 32 #define BOARD_NAME "PlatinumAVC" 33 #else 34 #error "vct: No board variant defined!" 35 #endif 36 37 #if defined(CONFIG_VCT_ONENAND) 38 #define BOARD_NAME_ADD " OneNAND" 39 #else 40 #define BOARD_NAME_ADD " NOR" 41 #endif 42 43 int board_early_init_f(void) 44 { 45 /* 46 * First initialize the PIN mulitplexing 47 */ 48 vct_pin_mux_initialize(); 49 50 /* 51 * Init the EBI very early so that FLASH can be accessed 52 */ 53 ebi_initialize(); 54 55 return 0; 56 } 57 58 void _machine_restart(void) 59 { 60 reg_write(DCGU_EN_WDT_RESET(DCGU_BASE), DCGU_MAGIC_WDT); 61 reg_write(WDT_TORR(WDT_BASE), 0x00); 62 reg_write(WDT_CR(WDT_BASE), 0x1D); 63 64 /* 65 * Now wait for the watchdog to trigger the reset 66 */ 67 udelay(1000000); 68 } 69 70 /* 71 * SDRAM is already configured by the bootstrap code, only return the 72 * auto-detected size here 73 */ 74 phys_size_t initdram(int board_type) 75 { 76 return get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 77 CONFIG_SYS_MBYTES_SDRAM << 20); 78 } 79 80 int checkboard(void) 81 { 82 u32 config0 = read_c0_prid(); 83 char *s = getenv("serial#"); 84 85 if ((config0 & 0xff0000) == PRID_COMP_LEGACY 86 && (config0 & 0xff00) == PRID_IMP_LX4280) { 87 puts("Board: MDED \n"); 88 printf("CPU: LX4280 id: 0x%02x, rev: 0x%02x\n", 89 (config0 >> 8) & 0xFF, config0 & 0xFF); 90 } else if ((config0 & 0xff0000) == PRID_COMP_MIPS 91 && (config0 & 0xff00) == PRID_IMP_VGC) { 92 u32 jedec_id = *((u32 *) 0xBEBC71A0); 93 if ((((jedec_id) >> 12) & 0xFF) == 0x40) { 94 puts("Board: VGCA \n"); 95 } else if ((((jedec_id) >> 12) & 0xFF) == 0x48 96 || (((jedec_id) >> 12) & 0xFF) == 0x49) { 97 puts("Board: VGCB \n"); 98 } 99 printf("CPU: MIPS 4K id: 0x%02x, rev: 0x%02x\n", 100 (config0 >> 8) & 0xFF, config0 & 0xFF); 101 } else if (config0 == 0x19378) { 102 printf("CPU: MIPS 24K id: 0x%02x, rev: 0x%02x\n", 103 (config0 >> 8) & 0xFF, config0 & 0xFF); 104 } else { 105 printf("Unsupported cpu %d, proc_id=0x%x\n", config0 >> 24, 106 config0); 107 } 108 109 printf("Board: Micronas VCT " BOARD_NAME BOARD_NAME_ADD); 110 if (s != NULL) { 111 puts(", serial# "); 112 puts(s); 113 } 114 putc('\n'); 115 116 return 0; 117 } 118