uboot/board/freescale/m54455evb/m54455evb.c
<<
>>
Prefs
   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
  25int 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
  83int 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
  94int 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
 116void 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 */
 159static struct pci_controller hose;
 160extern void pci_mcf5445x_init(struct pci_controller *hose);
 161
 162void 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>
 170ulong 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