board/freescale/mpc837xerdb/mpc837xerdb.c

   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)
  20 int
  21 testdram(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)
  59 void ddr_enable_ecc(unsigned int dram_size);
  60 #endif
  61 int fixed_sdram(void);
  62
  63 phys_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  ************************************************************************/
  89 int 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
 126 int checkboard(void)
 127 {
 128         puts("Board: Freescale MPC837xERDB\n");
 129         return 0;
 130 }
 131
 132 int 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
 166 int board_mmc_init(bd_t *bd)
 167 {
 168         struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
 169
 170         if (!hwconfig("esdhc"))
 171                 return 0;
 172
 173         clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
 174         clrsetbits_be32(&im->sysconf.sicrh, SICRH_SPI, SICRH_SPI_SD);
 175
 176         return fsl_esdhc_mmc_init(bd);
 177 }
 178 #endif
 179
 180 /*
 181  * Miscellaneous late-boot configurations
 182  *
 183  * If a VSC7385 microcode image is present, then upload it.
 184 */
 185 int misc_init_r(void)
 186 {
 187         int rc = 0;
 188
 189 #ifdef CONFIG_VSC7385_IMAGE
 190         if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
 191                 CONFIG_VSC7385_IMAGE_SIZE)) {
 192                 puts("Failure uploading VSC7385 microcode.\n");
 193                 rc = 1;
 194         }
 195 #endif
 196
 197         return rc;
 198 }
 199
 200 #if defined(CONFIG_OF_BOARD_SETUP)
 201
 202 void ft_board_setup(void *blob, bd_t *bd)
 203 {
 204 #ifdef CONFIG_PCI
 205         ft_pci_setup(blob, bd);
 206 #endif
 207         ft_cpu_setup(blob, bd);
 208         fdt_fixup_dr_usb(blob, bd);
 209         fdt_fixup_esdhc(blob, bd);
 210 }
 211 #endif /* CONFIG_OF_BOARD_SETUP */