1 /* 2 * (C) Copyright 2000-2003 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc. 6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 #include <common.h> 12 #include <pci.h> 13 #include <asm/immap.h> 14 #include <asm/io.h> 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 int checkboard(void) 19 { 20 puts("Board: "); 21 puts("Freescale M54455 EVB\n"); 22 return 0; 23 }; 24 25 int dram_init(void) 26 { 27 u32 dramsize; 28 #ifdef CONFIG_CF_SBF 29 /* 30 * Serial Boot: The dram is already initialized in start.S 31 * only require to return DRAM size 32 */ 33 dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000 >> 1; 34 #else 35 sdramc_t *sdram = (sdramc_t *)(MMAP_SDRAM); 36 gpio_t *gpio = (gpio_t *)(MMAP_GPIO); 37 u32 i; 38 39 dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000 >> 1; 40 41 for (i = 0x13; i < 0x20; i++) { 42 if (dramsize == (1 << i)) 43 break; 44 } 45 i--; 46 47 out_8(&gpio->mscr_sdram, CONFIG_SYS_SDRAM_DRV_STRENGTH); 48 49 out_be32(&sdram->sdcs0, CONFIG_SYS_SDRAM_BASE | i); 50 out_be32(&sdram->sdcs1, CONFIG_SYS_SDRAM_BASE1 | i); 51 52 out_be32(&sdram->sdcfg1, CONFIG_SYS_SDRAM_CFG1); 53 out_be32(&sdram->sdcfg2, CONFIG_SYS_SDRAM_CFG2); 54 55 /* Issue PALL */ 56 out_be32(&sdram->sdcr, CONFIG_SYS_SDRAM_CTRL | 2); 57 58 /* Issue LEMR */ 59 out_be32(&sdram->sdmr, CONFIG_SYS_SDRAM_EMOD | 0x408); 60 out_be32(&sdram->sdmr, CONFIG_SYS_SDRAM_MODE | 0x300); 61 62 udelay(500); 63 64 /* Issue PALL */ 65 out_be32(&sdram->sdcr, CONFIG_SYS_SDRAM_CTRL | 2); 66 67 /* Perform two refresh cycles */ 68 out_be32(&sdram->sdcr, CONFIG_SYS_SDRAM_CTRL | 4); 69 out_be32(&sdram->sdcr, CONFIG_SYS_SDRAM_CTRL | 4); 70 71 out_be32(&sdram->sdmr, CONFIG_SYS_SDRAM_MODE | 0x200); 72 73 out_be32(&sdram->sdcr, 74 (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000c00); 75 76 udelay(100); 77 #endif 78 gd->ram_size = dramsize << 1; 79 80 return 0; 81 }; 82 83 int testdram(void) 84 { 85 /* TODO: XXX XXX XXX */ 86 printf("DRAM test not implemented!\n"); 87 88 return (0); 89 } 90 91 #if defined(CONFIG_IDE) 92 #include <ata.h> 93 94 int ide_preinit(void) 95 { 96 gpio_t *gpio = (gpio_t *) MMAP_GPIO; 97 u32 tmp; 98 99 tmp = (in_8(&gpio->par_fec) & GPIO_PAR_FEC_FEC1_UNMASK) | 0x10; 100 setbits_8(&gpio->par_fec, tmp); 101 tmp = ((in_be16(&gpio->par_feci2c) & 0xf0ff) | 102 (GPIO_PAR_FECI2C_MDC1_ATA_DIOR | GPIO_PAR_FECI2C_MDIO1_ATA_DIOW)); 103 setbits_be16(&gpio->par_feci2c, tmp); 104 105 setbits_be16(&gpio->par_ata, 106 GPIO_PAR_ATA_BUFEN | GPIO_PAR_ATA_CS1 | GPIO_PAR_ATA_CS0 | 107 GPIO_PAR_ATA_DA2 | GPIO_PAR_ATA_DA1 | GPIO_PAR_ATA_DA0 | 108 GPIO_PAR_ATA_RESET_RESET | GPIO_PAR_ATA_DMARQ_DMARQ | 109 GPIO_PAR_ATA_IORDY_IORDY); 110 setbits_be16(&gpio->par_pci, 111 GPIO_PAR_PCI_GNT3_ATA_DMACK | GPIO_PAR_PCI_REQ3_ATA_INTRQ); 112 113 return (0); 114 } 115 116 void ide_set_reset(int idereset) 117 { 118 atac_t *ata = (atac_t *) MMAP_ATA; 119 long period; 120 /* t1, t2, t3, t4, t5, t6, t9, tRD, tA */ 121 int piotms[5][9] = { 122 {70, 165, 60, 30, 50, 5, 20, 0, 35}, /* PIO 0 */ 123 {50, 125, 45, 20, 35, 5, 15, 0, 35}, /* PIO 1 */ 124 {30, 100, 30, 15, 20, 5, 10, 0, 35}, /* PIO 2 */ 125 {30, 80, 30, 10, 20, 5, 10, 0, 35}, /* PIO 3 */ 126 {25, 70, 20, 10, 20, 5, 10, 0, 35} 127 }; /* PIO 4 */ 128 129 if (idereset) { 130 /* control reset */ 131 out_8(&ata->cr, 0); 132 udelay(10000); 133 } else { 134 #define CALC_TIMING(t) (t + period - 1) / period 135 period = 1000000000 / gd->bus_clk; /* period in ns */ 136 137 /*ata->ton = CALC_TIMING (180); */ 138 out_8(&ata->t1, CALC_TIMING(piotms[2][0])); 139 out_8(&ata->t2w, CALC_TIMING(piotms[2][1])); 140 out_8(&ata->t2r, CALC_TIMING(piotms[2][1])); 141 out_8(&ata->ta, CALC_TIMING(piotms[2][8])); 142 out_8(&ata->trd, CALC_TIMING(piotms[2][7])); 143 out_8(&ata->t4, CALC_TIMING(piotms[2][3])); 144 out_8(&ata->t9, CALC_TIMING(piotms[2][6])); 145 146 /* IORDY enable */ 147 out_8(&ata->cr, 0x40); 148 udelay(200000); 149 /* IORDY enable */ 150 setbits_8(&ata->cr, 0x01); 151 } 152 } 153 #endif 154 155 #if defined(CONFIG_PCI) 156 /* 157 * Initialize PCI devices, report devices found. 158 */ 159 static struct pci_controller hose; 160 extern void pci_mcf5445x_init(struct pci_controller *hose); 161 162 void pci_init_board(void) 163 { 164 pci_mcf5445x_init(&hose); 165 } 166 #endif /* CONFIG_PCI */ 167 168 #if defined(CONFIG_FLASH_CFI_LEGACY) 169 #include <flash.h> 170 ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info) 171 { 172 int sect[] = CONFIG_SYS_ATMEL_SECT; 173 int sectsz[] = CONFIG_SYS_ATMEL_SECTSZ; 174 int i, j, k; 175 176 if (base != CONFIG_SYS_ATMEL_BASE) 177 return 0; 178 179 info->flash_id = 0x01000000; 180 info->portwidth = 1; 181 info->chipwidth = 1; 182 info->buffer_size = 1; 183 info->erase_blk_tout = 16384; 184 info->write_tout = 2; 185 info->buffer_write_tout = 5; 186 info->vendor = 0xFFF0; /* CFI_CMDSET_AMD_LEGACY */ 187 info->cmd_reset = 0x00F0; 188 info->interface = FLASH_CFI_X8; 189 info->legacy_unlock = 0; 190 info->manufacturer_id = (u16) ATM_MANUFACT; 191 info->device_id = ATM_ID_LV040; 192 info->device_id2 = 0; 193 194 info->ext_addr = 0; 195 info->cfi_version = 0x3133; 196 info->cfi_offset = 0x0000; 197 info->addr_unlock1 = 0x00000555; 198 info->addr_unlock2 = 0x000002AA; 199 info->name = "CFI conformant"; 200 201 info->size = 0; 202 info->sector_count = CONFIG_SYS_ATMEL_TOTALSECT; 203 info->start[0] = base; 204 for (k = 0, i = 0; i < CONFIG_SYS_ATMEL_REGION; i++) { 205 info->size += sect[i] * sectsz[i]; 206 207 for (j = 0; j < sect[i]; j++, k++) { 208 info->start[k + 1] = info->start[k] + sectsz[i]; 209 info->protect[k] = 0; 210 } 211 } 212 213 return 1; 214 } 215 #endif /* CONFIG_SYS_FLASH_CFI */ 216