uboot/board/freescale/mpc837xerdb/mpc837xerdb.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2007 Freescale Semiconductor, Inc.
   4 * Kevin Lam <kevin.lam@freescale.com>
   5 * Joe D'Abbraccio <joe.d'abbraccio@freescale.com>
   6 */
   7
   8#include <common.h>
   9#include <hwconfig.h>
  10#include <i2c.h>
  11#include <asm/io.h>
  12#include <asm/fsl_mpc83xx_serdes.h>
  13#include <fdt_support.h>
  14#include <spd_sdram.h>
  15#include <vsc7385.h>
  16#include <fsl_esdhc.h>
  17
  18DECLARE_GLOBAL_DATA_PTR;
  19
  20#if defined(CONFIG_SYS_DRAM_TEST)
  21int
  22testdram(void)
  23{
  24        uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
  25        uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
  26        uint *p;
  27
  28        printf("Testing DRAM from 0x%08x to 0x%08x\n",
  29               CONFIG_SYS_MEMTEST_START,
  30               CONFIG_SYS_MEMTEST_END);
  31
  32        printf("DRAM test phase 1:\n");
  33        for (p = pstart; p < pend; p++)
  34                *p = 0xaaaaaaaa;
  35
  36        for (p = pstart; p < pend; p++) {
  37                if (*p != 0xaaaaaaaa) {
  38                        printf("DRAM test fails at: %08x\n", (uint) p);
  39                        return 1;
  40                }
  41        }
  42
  43        printf("DRAM test phase 2:\n");
  44        for (p = pstart; p < pend; p++)
  45                *p = 0x55555555;
  46
  47        for (p = pstart; p < pend; p++) {
  48                if (*p != 0x55555555) {
  49                        printf("DRAM test fails at: %08x\n", (uint) p);
  50                        return 1;
  51                }
  52        }
  53
  54        printf("DRAM test passed.\n");
  55        return 0;
  56}
  57#endif
  58
  59#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  60void ddr_enable_ecc(unsigned int dram_size);
  61#endif
  62int fixed_sdram(void);
  63
  64int dram_init(void)
  65{
  66        immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
  67        u32 msize = 0;
  68
  69        if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
  70                return -ENXIO;
  71
  72#if defined(CONFIG_SPD_EEPROM)
  73        msize = spd_sdram();
  74#else
  75        msize = fixed_sdram();
  76#endif
  77
  78#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  79        /* Initialize DDR ECC byte */
  80        ddr_enable_ecc(msize * 1024 * 1024);
  81#endif
  82        /* return total bus DDR size(bytes) */
  83        gd->ram_size = msize * 1024 * 1024;
  84
  85        return 0;
  86}
  87
  88#if !defined(CONFIG_SPD_EEPROM)
  89/*************************************************************************
  90 *  fixed sdram init -- doesn't use serial presence detect.
  91 ************************************************************************/
  92int fixed_sdram(void)
  93{
  94        immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
  95        u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
  96        u32 msize_log2 = __ilog2(msize);
  97
  98        im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
  99        im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);
 100
 101        im->sysconf.ddrcdr = CONFIG_SYS_DDRCDR_VALUE;
 102        udelay(50000);
 103
 104        im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_SDRAM_CLK_CNTL;
 105        udelay(1000);
 106
 107        im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS;
 108        im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
 109        udelay(1000);
 110
 111        im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
 112        im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
 113        im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
 114        im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
 115        im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
 116        im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
 117        im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
 118        im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
 119        im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
 120        sync();
 121        udelay(1000);
 122
 123        im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
 124        udelay(2000);
 125        return CONFIG_SYS_DDR_SIZE;
 126}
 127#endif  /*!CONFIG_SYS_SPD_EEPROM */
 128
 129int checkboard(void)
 130{
 131        puts("Board: Freescale MPC837xERDB\n");
 132        return 0;
 133}
 134
 135int board_early_init_f(void)
 136{
 137#ifdef CONFIG_FSL_SERDES
 138        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 139        u32 spridr = in_be32(&immr->sysconf.spridr);
 140
 141        /* we check only part num, and don't look for CPU revisions */
 142        switch (PARTID_NO_E(spridr)) {
 143        case SPR_8377:
 144                fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
 145                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 146                fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
 147                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 148                break;
 149        case SPR_8378:
 150                fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
 151                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 152                break;
 153        case SPR_8379:
 154                fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
 155                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 156                fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_SATA,
 157                                 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 158                break;
 159        default:
 160                printf("serdes not configured: unknown CPU part number: "
 161                       "%04x\n", spridr >> 16);
 162                break;
 163        }
 164#endif /* CONFIG_FSL_SERDES */
 165        return 0;
 166}
 167
 168#ifdef CONFIG_FSL_ESDHC
 169int board_mmc_init(bd_t *bd)
 170{
 171        struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
 172        char buffer[HWCONFIG_BUFFER_SIZE] = {0};
 173        int esdhc_hwconfig_enabled = 0;
 174
 175        if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0)
 176                esdhc_hwconfig_enabled = hwconfig_f("esdhc", buffer);
 177
 178        if (esdhc_hwconfig_enabled == 0)
 179                return 0;
 180
 181        clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
 182        clrsetbits_be32(&im->sysconf.sicrh, SICRH_SPI, SICRH_SPI_SD);
 183
 184        return fsl_esdhc_mmc_init(bd);
 185}
 186#endif
 187
 188/*
 189 * Miscellaneous late-boot configurations
 190 *
 191 * If a VSC7385 microcode image is present, then upload it.
 192*/
 193int misc_init_r(void)
 194{
 195        int rc = 0;
 196
 197#ifdef CONFIG_VSC7385_IMAGE
 198        if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
 199                CONFIG_VSC7385_IMAGE_SIZE)) {
 200                puts("Failure uploading VSC7385 microcode.\n");
 201                rc = 1;
 202        }
 203#endif
 204
 205        return rc;
 206}
 207
 208#if defined(CONFIG_OF_BOARD_SETUP)
 209
 210int ft_board_setup(void *blob, bd_t *bd)
 211{
 212#ifdef CONFIG_PCI
 213        ft_pci_setup(blob, bd);
 214#endif
 215        ft_cpu_setup(blob, bd);
 216        fsl_fdt_fixup_dr_usb(blob, bd);
 217        fdt_fixup_esdhc(blob, bd);
 218
 219        return 0;
 220}
 221#endif /* CONFIG_OF_BOARD_SETUP */
 222