uboot/board/freescale/mpc837xerdb/mpc837xerdb.c
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   1/*
   2 * Copyright (C) 2007 Freescale Semiconductor, Inc.
   3 * Kevin Lam <kevin.lam@freescale.com>
   4 * Joe D'Abbraccio <joe.d'abbraccio@freescale.com>
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <common.h>
  10#include <hwconfig.h>
  11#include <i2c.h>
  12#include <asm/io.h>
  13#include <asm/fsl_mpc83xx_serdes.h>
  14#include <fdt_support.h>
  15#include <spd_sdram.h>
  16#include <vsc7385.h>
  17#include <fsl_esdhc.h>
  18
  19#if defined(CONFIG_SYS_DRAM_TEST)
  20int
  21testdram(void)
  22{
  23        uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
  24        uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
  25        uint *p;
  26
  27        printf("Testing DRAM from 0x%08x to 0x%08x\n",
  28               CONFIG_SYS_MEMTEST_START,
  29               CONFIG_SYS_MEMTEST_END);
  30
  31        printf("DRAM test phase 1:\n");
  32        for (p = pstart; p < pend; p++)
  33                *p = 0xaaaaaaaa;
  34
  35        for (p = pstart; p < pend; p++) {
  36                if (*p != 0xaaaaaaaa) {
  37                        printf("DRAM test fails at: %08x\n", (uint) p);
  38                        return 1;
  39                }
  40        }
  41
  42        printf("DRAM test phase 2:\n");
  43        for (p = pstart; p < pend; p++)
  44                *p = 0x55555555;
  45
  46        for (p = pstart; p < pend; p++) {
  47                if (*p != 0x55555555) {
  48                        printf("DRAM test fails at: %08x\n", (uint) p);
  49                        return 1;
  50                }
  51        }
  52
  53        printf("DRAM test passed.\n");
  54        return 0;
  55}
  56#endif
  57
  58#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  59void ddr_enable_ecc(unsigned int dram_size);
  60#endif
  61int fixed_sdram(void);
  62
  63phys_size_t initdram(int board_type)
  64{
  65        immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
  66        u32 msize = 0;
  67
  68        if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
  69                return -1;
  70
  71#if defined(CONFIG_SPD_EEPROM)
  72        msize = spd_sdram();
  73#else
  74        msize = fixed_sdram();
  75#endif
  76
  77#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  78        /* Initialize DDR ECC byte */
  79        ddr_enable_ecc(msize * 1024 * 1024);
  80#endif
  81        /* return total bus DDR size(bytes) */
  82        return (msize * 1024 * 1024);
  83}
  84
  85#if !defined(CONFIG_SPD_EEPROM)
  86/*************************************************************************
  87 *  fixed sdram init -- doesn't use serial presence detect.
  88 ************************************************************************/
  89int fixed_sdram(void)
  90{
  91        immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
  92        u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
  93        u32 msize_log2 = __ilog2(msize);
  94
  95        im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
  96        im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);
  97
  98        im->sysconf.ddrcdr = CONFIG_SYS_DDRCDR_VALUE;
  99        udelay(50000);
 100
 101        im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_SDRAM_CLK_CNTL;
 102        udelay(1000);
 103
 104        im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS;
 105        im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
 106        udelay(1000);
 107
 108        im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
 109        im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
 110        im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
 111        im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
 112        im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
 113        im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
 114        im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
 115        im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
 116        im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
 117        sync();
 118        udelay(1000);
 119
 120        im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
 121        udelay(2000);
 122        return CONFIG_SYS_DDR_SIZE;
 123}
 124#endif  /*!CONFIG_SYS_SPD_EEPROM */
 125
 126int checkboard(void)
 127{
 128        puts("Board: Freescale MPC837xERDB\n");
 129        return 0;
 130}
 131
 132int board_early_init_f(void)
 133{
 134#ifdef CONFIG_FSL_SERDES
 135        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 136        u32 spridr = in_be32(&immr->sysconf.spridr);
 137
 138        /* we check only part num, and don't look for CPU revisions */
 139        switch (PARTID_NO_E(spridr)) {
 140        case SPR_8377:
 141                fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
 142                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 143                fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
 144                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 145                break;
 146        case SPR_8378:
 147                fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
 148                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 149                break;
 150        case SPR_8379:
 151                fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
 152                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 153                fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_SATA,
 154                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 155                break;
 156        default:
 157                printf("serdes not configured: unknown CPU part number: "
 158                       "%04x\n", spridr >> 16);
 159                break;
 160        }
 161#endif /* CONFIG_FSL_SERDES */
 162        return 0;
 163}
 164
 165#ifdef CONFIG_FSL_ESDHC
 166int board_mmc_init(bd_t *bd)
 167{
 168        struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
 169        char buffer[HWCONFIG_BUFFER_SIZE] = {0};
 170        int esdhc_hwconfig_enabled = 0;
 171
 172        if (getenv_f("hwconfig", buffer, sizeof(buffer)) > 0)
 173                esdhc_hwconfig_enabled = hwconfig_f("esdhc", buffer);
 174
 175        if (esdhc_hwconfig_enabled == 0)
 176                return 0;
 177
 178        clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
 179        clrsetbits_be32(&im->sysconf.sicrh, SICRH_SPI, SICRH_SPI_SD);
 180
 181        return fsl_esdhc_mmc_init(bd);
 182}
 183#endif
 184
 185/*
 186 * Miscellaneous late-boot configurations
 187 *
 188 * If a VSC7385 microcode image is present, then upload it.
 189*/
 190int misc_init_r(void)
 191{
 192        int rc = 0;
 193
 194#ifdef CONFIG_VSC7385_IMAGE
 195        if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
 196                CONFIG_VSC7385_IMAGE_SIZE)) {
 197                puts("Failure uploading VSC7385 microcode.\n");
 198                rc = 1;
 199        }
 200#endif
 201
 202        return rc;
 203}
 204
 205#if defined(CONFIG_OF_BOARD_SETUP)
 206
 207int ft_board_setup(void *blob, bd_t *bd)
 208{
 209#ifdef CONFIG_PCI
 210        ft_pci_setup(blob, bd);
 211#endif
 212        ft_cpu_setup(blob, bd);
 213        fdt_fixup_dr_usb(blob, bd);
 214        fdt_fixup_esdhc(blob, bd);
 215
 216        return 0;
 217}
 218#endif /* CONFIG_OF_BOARD_SETUP */
 219