uboot/board/freescale/m54455evb/m54455evb.c
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   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
  16DECLARE_GLOBAL_DATA_PTR;
  17
  18int checkboard(void)
  19{
  20        puts("Board: ");
  21        puts("Freescale M54455 EVB\n");
  22        return 0;
  23};
  24
  25phys_size_t initdram(int board_type)
  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        return (dramsize << 1);
  79};
  80
  81int testdram(void)
  82{
  83        /* TODO: XXX XXX XXX */
  84        printf("DRAM test not implemented!\n");
  85
  86        return (0);
  87}
  88
  89#if defined(CONFIG_CMD_IDE)
  90#include <ata.h>
  91
  92int ide_preinit(void)
  93{
  94        gpio_t *gpio = (gpio_t *) MMAP_GPIO;
  95        u32 tmp;
  96
  97        tmp = (in_8(&gpio->par_fec) & GPIO_PAR_FEC_FEC1_UNMASK) | 0x10;
  98        setbits_8(&gpio->par_fec, tmp);
  99        tmp = ((in_be16(&gpio->par_feci2c) & 0xf0ff) |
 100                (GPIO_PAR_FECI2C_MDC1_ATA_DIOR | GPIO_PAR_FECI2C_MDIO1_ATA_DIOW));
 101        setbits_be16(&gpio->par_feci2c, tmp);
 102
 103        setbits_be16(&gpio->par_ata,
 104                GPIO_PAR_ATA_BUFEN | GPIO_PAR_ATA_CS1 | GPIO_PAR_ATA_CS0 |
 105                GPIO_PAR_ATA_DA2 | GPIO_PAR_ATA_DA1 | GPIO_PAR_ATA_DA0 |
 106                GPIO_PAR_ATA_RESET_RESET | GPIO_PAR_ATA_DMARQ_DMARQ |
 107                GPIO_PAR_ATA_IORDY_IORDY);
 108        setbits_be16(&gpio->par_pci,
 109                GPIO_PAR_PCI_GNT3_ATA_DMACK | GPIO_PAR_PCI_REQ3_ATA_INTRQ);
 110
 111        return (0);
 112}
 113
 114void ide_set_reset(int idereset)
 115{
 116        atac_t *ata = (atac_t *) MMAP_ATA;
 117        long period;
 118        /*  t1,  t2,  t3,  t4,  t5,  t6,  t9, tRD,  tA */
 119        int piotms[5][9] = {
 120                {70, 165, 60, 30, 50, 5, 20, 0, 35},    /* PIO 0 */
 121                {50, 125, 45, 20, 35, 5, 15, 0, 35},    /* PIO 1 */
 122                {30, 100, 30, 15, 20, 5, 10, 0, 35},    /* PIO 2 */
 123                {30, 80, 30, 10, 20, 5, 10, 0, 35},     /* PIO 3 */
 124                {25, 70, 20, 10, 20, 5, 10, 0, 35}
 125        };                      /* PIO 4 */
 126
 127        if (idereset) {
 128                /* control reset */
 129                out_8(&ata->cr, 0);
 130                udelay(10000);
 131        } else {
 132#define CALC_TIMING(t) (t + period - 1) / period
 133                period = 1000000000 / gd->bus_clk;      /* period in ns */
 134
 135                /*ata->ton = CALC_TIMING (180); */
 136                out_8(&ata->t1, CALC_TIMING(piotms[2][0]));
 137                out_8(&ata->t2w, CALC_TIMING(piotms[2][1]));
 138                out_8(&ata->t2r, CALC_TIMING(piotms[2][1]));
 139                out_8(&ata->ta, CALC_TIMING(piotms[2][8]));
 140                out_8(&ata->trd, CALC_TIMING(piotms[2][7]));
 141                out_8(&ata->t4, CALC_TIMING(piotms[2][3]));
 142                out_8(&ata->t9, CALC_TIMING(piotms[2][6]));
 143
 144                /* IORDY enable */
 145                out_8(&ata->cr, 0x40);
 146                udelay(200000);
 147                /* IORDY enable */
 148                setbits_8(&ata->cr, 0x01);
 149        }
 150}
 151#endif
 152
 153#if defined(CONFIG_PCI)
 154/*
 155 * Initialize PCI devices, report devices found.
 156 */
 157static struct pci_controller hose;
 158extern void pci_mcf5445x_init(struct pci_controller *hose);
 159
 160void pci_init_board(void)
 161{
 162        pci_mcf5445x_init(&hose);
 163}
 164#endif                          /* CONFIG_PCI */
 165
 166#if defined(CONFIG_FLASH_CFI_LEGACY)
 167#include <flash.h>
 168ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info)
 169{
 170        int sect[] = CONFIG_SYS_ATMEL_SECT;
 171        int sectsz[] = CONFIG_SYS_ATMEL_SECTSZ;
 172        int i, j, k;
 173
 174        if (base != CONFIG_SYS_ATMEL_BASE)
 175                return 0;
 176
 177        info->flash_id          = 0x01000000;
 178        info->portwidth         = 1;
 179        info->chipwidth         = 1;
 180        info->buffer_size       = 1;
 181        info->erase_blk_tout    = 16384;
 182        info->write_tout        = 2;
 183        info->buffer_write_tout = 5;
 184        info->vendor            = 0xFFF0; /* CFI_CMDSET_AMD_LEGACY */
 185        info->cmd_reset         = 0x00F0;
 186        info->interface         = FLASH_CFI_X8;
 187        info->legacy_unlock     = 0;
 188        info->manufacturer_id   = (u16) ATM_MANUFACT;
 189        info->device_id         = ATM_ID_LV040;
 190        info->device_id2        = 0;
 191
 192        info->ext_addr          = 0;
 193        info->cfi_version       = 0x3133;
 194        info->cfi_offset        = 0x0000;
 195        info->addr_unlock1      = 0x00000555;
 196        info->addr_unlock2      = 0x000002AA;
 197        info->name              = "CFI conformant";
 198
 199        info->size              = 0;
 200        info->sector_count      = CONFIG_SYS_ATMEL_TOTALSECT;
 201        info->start[0] = base;
 202        for (k = 0, i = 0; i < CONFIG_SYS_ATMEL_REGION; i++) {
 203                info->size += sect[i] * sectsz[i];
 204
 205                for (j = 0; j < sect[i]; j++, k++) {
 206                        info->start[k + 1] = info->start[k] + sectsz[i];
 207                        info->protect[k] = 0;
 208                }
 209        }
 210
 211        return 1;
 212}
 213#endif                          /* CONFIG_SYS_FLASH_CFI */
 214