1 /* 2 * vme8349.c -- esd VME8349 board support 3 * 4 * Copyright (c) 2008-2009 esd gmbh. 5 * 6 * (C) Copyright 2006 7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 8 * 9 * Reinhard Arlt <reinhard.arlt@esd-electronics.com> 10 * Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.) 11 * 12 * See file CREDITS for list of people who contributed to this 13 * project. 14 * 15 * This program is free software; you can redistribute it and/or 16 * modify it under the terms of the GNU General Public License as 17 * published by the Free Software Foundation; either version 2 of 18 * the License, or (at your option) any later version. 19 * 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 28 * MA 02111-1307 USA 29 * 30 */ 31 32 #include <common.h> 33 #include <ioports.h> 34 #include <mpc83xx.h> 35 #include <asm/mpc8349_pci.h> 36 #if defined(CONFIG_OF_LIBFDT) 37 #include <libfdt.h> 38 #endif 39 #include <asm/io.h> 40 #include <asm/mmu.h> 41 #include <spd.h> 42 #include <spd_sdram.h> 43 #include <i2c.h> 44 #include <netdev.h> 45 46 void ddr_enable_ecc(unsigned int dram_size); 47 48 phys_size_t initdram(int board_type) 49 { 50 volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; 51 u32 msize = 0; 52 53 if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) 54 return -1; 55 56 /* DDR SDRAM - Main memory */ 57 im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR; 58 59 msize = spd_sdram(); 60 61 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) 62 /* 63 * Initialize and enable DDR ECC. 64 */ 65 ddr_enable_ecc(msize * 1024 * 1024); 66 #endif 67 68 /* Now check memory size (after ECC is initialized) */ 69 msize = get_ram_size(0, msize); 70 71 /* return total bus SDRAM size(bytes) -- DDR */ 72 return msize * 1024 * 1024; 73 } 74 75 int checkboard(void) 76 { 77 #ifdef VME_CADDY2 78 puts("Board: esd VME-CADDY/2\n"); 79 #else 80 puts("Board: esd VME-CPU/8349\n"); 81 #endif 82 83 return 0; 84 } 85 86 #ifdef VME_CADDY2 87 int board_eth_init(bd_t *bis) 88 { 89 return pci_eth_init(bis); 90 } 91 #endif 92 93 #if defined(CONFIG_OF_BOARD_SETUP) 94 void ft_board_setup(void *blob, bd_t *bd) 95 { 96 ft_cpu_setup(blob, bd); 97 98 #ifdef CONFIG_PCI 99 ft_pci_setup(blob, bd); 100 #endif 101 } 102 #endif 103 104 int misc_init_r() 105 { 106 immap_t *im = (immap_t *)CONFIG_SYS_IMMR; 107 108 clrsetbits_be32(&im->lbus.lcrr, LBCR_LDIS, 0); 109 110 return 0; 111 } 112 113 /* 114 * Provide SPD values for spd_sdram(). Both boards (VME-CADDY/2 115 * and VME-CADDY/2) have different SDRAM configurations. 116 */ 117 #ifdef VME_CADDY2 118 #define SMALL_RAM 0xff 119 #define LARGE_RAM 0x00 120 #else 121 #define SMALL_RAM 0x00 122 #define LARGE_RAM 0xff 123 #endif 124 125 #define SPD_VAL(a, b) (((a) & SMALL_RAM) | ((b) & LARGE_RAM)) 126 127 static spd_eeprom_t default_spd_eeprom = { 128 SPD_VAL(0x80, 0x80), /* 00 use 128 Bytes */ 129 SPD_VAL(0x07, 0x07), /* 01 use 128 Bytes */ 130 SPD_MEMTYPE_DDR2, /* 02 type is DDR2 */ 131 SPD_VAL(0x0d, 0x0d), /* 03 rows: 13 */ 132 SPD_VAL(0x09, 0x0a), /* 04 cols: 9 / 10 */ 133 SPD_VAL(0x00, 0x00), /* 05 */ 134 SPD_VAL(0x40, 0x40), /* 06 */ 135 SPD_VAL(0x00, 0x00), /* 07 */ 136 SPD_VAL(0x05, 0x05), /* 08 */ 137 SPD_VAL(0x30, 0x30), /* 09 */ 138 SPD_VAL(0x45, 0x45), /* 10 */ 139 SPD_VAL(0x02, 0x02), /* 11 ecc used */ 140 SPD_VAL(0x82, 0x82), /* 12 */ 141 SPD_VAL(0x10, 0x10), /* 13 */ 142 SPD_VAL(0x08, 0x08), /* 14 */ 143 SPD_VAL(0x00, 0x00), /* 15 */ 144 SPD_VAL(0x0c, 0x0c), /* 16 */ 145 SPD_VAL(0x04, 0x08), /* 17 banks: 4 / 8 */ 146 SPD_VAL(0x38, 0x38), /* 18 */ 147 SPD_VAL(0x00, 0x00), /* 19 */ 148 SPD_VAL(0x02, 0x02), /* 20 */ 149 SPD_VAL(0x00, 0x00), /* 21 */ 150 SPD_VAL(0x03, 0x03), /* 22 */ 151 SPD_VAL(0x3d, 0x3d), /* 23 */ 152 SPD_VAL(0x45, 0x45), /* 24 */ 153 SPD_VAL(0x50, 0x50), /* 25 */ 154 SPD_VAL(0x45, 0x45), /* 26 */ 155 SPD_VAL(0x3c, 0x3c), /* 27 */ 156 SPD_VAL(0x28, 0x28), /* 28 */ 157 SPD_VAL(0x3c, 0x3c), /* 29 */ 158 SPD_VAL(0x2d, 0x2d), /* 30 */ 159 SPD_VAL(0x20, 0x80), /* 31 */ 160 SPD_VAL(0x20, 0x20), /* 32 */ 161 SPD_VAL(0x27, 0x27), /* 33 */ 162 SPD_VAL(0x10, 0x10), /* 34 */ 163 SPD_VAL(0x17, 0x17), /* 35 */ 164 SPD_VAL(0x3c, 0x3c), /* 36 */ 165 SPD_VAL(0x1e, 0x1e), /* 37 */ 166 SPD_VAL(0x1e, 0x1e), /* 38 */ 167 SPD_VAL(0x00, 0x00), /* 39 */ 168 SPD_VAL(0x00, 0x06), /* 40 */ 169 SPD_VAL(0x37, 0x37), /* 41 */ 170 SPD_VAL(0x4b, 0x7f), /* 42 */ 171 SPD_VAL(0x80, 0x80), /* 43 */ 172 SPD_VAL(0x18, 0x18), /* 44 */ 173 SPD_VAL(0x22, 0x22), /* 45 */ 174 SPD_VAL(0x00, 0x00), /* 46 */ 175 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 176 SPD_VAL(0x10, 0x10), /* 62 */ 177 SPD_VAL(0x7e, 0x1d), /* 63 */ 178 { 'e', 's', 'd', '-', 'g', 'm', 'b', 'h' }, 179 SPD_VAL(0x00, 0x00), /* 72 */ 180 #ifdef VME_CADDY2 181 { "vme-caddy/2 ram " } 182 #else 183 { "vme-cpu/2 ram " } 184 #endif 185 }; 186 187 int vme8349_read_spd(uchar chip, uint addr, int alen, uchar *buffer, int len) 188 { 189 int old_bus = I2C_GET_BUS(); 190 unsigned int l, sum; 191 int valid = 0; 192 193 I2C_SET_BUS(0); 194 195 if (i2c_read(chip, addr, alen, buffer, len) == 0) 196 if (memcmp(&buffer[64], &default_spd_eeprom.mid[0], 8) == 0) { 197 sum = 0; 198 for (l = 0; l < 63; l++) 199 sum = (sum + buffer[l]) & 0xff; 200 if (sum == buffer[63]) 201 valid = 1; 202 else 203 printf("Invalid checksum in EEPROM %02x %02x\n", 204 sum, buffer[63]); 205 } 206 207 if (valid == 0) { 208 memcpy(buffer, (void *)&default_spd_eeprom, len); 209 sum = 0; 210 for (l = 0; l < 63; l++) 211 sum = (sum + buffer[l]) & 0xff; 212 if (sum != buffer[63]) 213 printf("Invalid checksum in FLASH %02x %02x\n", 214 sum, buffer[63]); 215 buffer[63] = sum; 216 } 217 218 I2C_SET_BUS(old_bus); 219 220 return 0; 221 } 222