uboot/board/freescale/mpc8315erdb/mpc8315erdb.c
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   1/*
   2 * Copyright (C) 2007 Freescale Semiconductor, Inc.
   3 *
   4 * Author: Scott Wood <scottwood@freescale.com>
   5 *         Dave Liu <daveliu@freescale.com>
   6 *
   7 * SPDX-License-Identifier:     GPL-2.0+
   8 */
   9
  10#include <common.h>
  11#include <hwconfig.h>
  12#include <i2c.h>
  13#include <libfdt.h>
  14#include <fdt_support.h>
  15#include <pci.h>
  16#include <mpc83xx.h>
  17#include <netdev.h>
  18#include <asm/io.h>
  19#include <ns16550.h>
  20#include <nand.h>
  21
  22DECLARE_GLOBAL_DATA_PTR;
  23
  24int board_early_init_f(void)
  25{
  26        volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
  27
  28        if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
  29                gd->flags |= GD_FLG_SILENT;
  30
  31        return 0;
  32}
  33
  34#ifndef CONFIG_NAND_SPL
  35
  36static u8 read_board_info(void)
  37{
  38        u8 val8;
  39        i2c_set_bus_num(0);
  40
  41        if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
  42                return val8;
  43        else
  44                return 0;
  45}
  46
  47int checkboard(void)
  48{
  49        static const char * const rev_str[] = {
  50                "0.0",
  51                "0.1",
  52                "1.0",
  53                "1.1",
  54                "<unknown>",
  55        };
  56        u8 info;
  57        int i;
  58
  59        info = read_board_info();
  60        i = (!info) ? 4: info & 0x03;
  61
  62        printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]);
  63
  64        return 0;
  65}
  66
  67static struct pci_region pci_regions[] = {
  68        {
  69                bus_start: CONFIG_SYS_PCI_MEM_BASE,
  70                phys_start: CONFIG_SYS_PCI_MEM_PHYS,
  71                size: CONFIG_SYS_PCI_MEM_SIZE,
  72                flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
  73        },
  74        {
  75                bus_start: CONFIG_SYS_PCI_MMIO_BASE,
  76                phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
  77                size: CONFIG_SYS_PCI_MMIO_SIZE,
  78                flags: PCI_REGION_MEM
  79        },
  80        {
  81                bus_start: CONFIG_SYS_PCI_IO_BASE,
  82                phys_start: CONFIG_SYS_PCI_IO_PHYS,
  83                size: CONFIG_SYS_PCI_IO_SIZE,
  84                flags: PCI_REGION_IO
  85        }
  86};
  87
  88static struct pci_region pcie_regions_0[] = {
  89        {
  90                .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
  91                .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
  92                .size = CONFIG_SYS_PCIE1_MEM_SIZE,
  93                .flags = PCI_REGION_MEM,
  94        },
  95        {
  96                .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
  97                .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
  98                .size = CONFIG_SYS_PCIE1_IO_SIZE,
  99                .flags = PCI_REGION_IO,
 100        },
 101};
 102
 103static struct pci_region pcie_regions_1[] = {
 104        {
 105                .bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
 106                .phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
 107                .size = CONFIG_SYS_PCIE2_MEM_SIZE,
 108                .flags = PCI_REGION_MEM,
 109        },
 110        {
 111                .bus_start = CONFIG_SYS_PCIE2_IO_BASE,
 112                .phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
 113                .size = CONFIG_SYS_PCIE2_IO_SIZE,
 114                .flags = PCI_REGION_IO,
 115        },
 116};
 117
 118void pci_init_board(void)
 119{
 120        volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
 121        volatile sysconf83xx_t *sysconf = &immr->sysconf;
 122        volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
 123        volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
 124        volatile law83xx_t *pcie_law = sysconf->pcielaw;
 125        struct pci_region *reg[] = { pci_regions };
 126        struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
 127
 128        /* Enable all 3 PCI_CLK_OUTPUTs. */
 129        clk->occr |= 0xe0000000;
 130
 131        /*
 132         * Configure PCI Local Access Windows
 133         */
 134        pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
 135        pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
 136
 137        pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
 138        pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
 139
 140        mpc83xx_pci_init(1, reg);
 141
 142        /* Configure the clock for PCIE controller */
 143        clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM,
 144                                    SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1);
 145
 146        /* Deassert the resets in the control register */
 147        out_be32(&sysconf->pecr1, 0xE0008000);
 148        out_be32(&sysconf->pecr2, 0xE0008000);
 149        udelay(2000);
 150
 151        /* Configure PCI Express Local Access Windows */
 152        out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
 153        out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
 154
 155        out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
 156        out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
 157
 158        mpc83xx_pcie_init(2, pcie_reg);
 159}
 160
 161#if defined(CONFIG_OF_BOARD_SETUP)
 162void fdt_tsec1_fixup(void *fdt, bd_t *bd)
 163{
 164        const char disabled[] = "disabled";
 165        const char *path;
 166        int ret;
 167
 168        if (hwconfig_arg_cmp("board_type", "tsec1")) {
 169                return;
 170        } else if (!hwconfig_arg_cmp("board_type", "ulpi")) {
 171                printf("NOTICE: No or unknown board_type hwconfig specified.\n"
 172                       "        Assuming board with TSEC1.\n");
 173                return;
 174        }
 175
 176        ret = fdt_path_offset(fdt, "/aliases");
 177        if (ret < 0) {
 178                printf("WARNING: can't find /aliases node\n");
 179                return;
 180        }
 181
 182        path = fdt_getprop(fdt, ret, "ethernet0", NULL);
 183        if (!path) {
 184                printf("WARNING: can't find ethernet0 alias\n");
 185                return;
 186        }
 187
 188        do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1);
 189}
 190
 191int ft_board_setup(void *blob, bd_t *bd)
 192{
 193        ft_cpu_setup(blob, bd);
 194#ifdef CONFIG_PCI
 195        ft_pci_setup(blob, bd);
 196#endif
 197        fsl_fdt_fixup_dr_usb(blob, bd);
 198        fdt_tsec1_fixup(blob, bd);
 199
 200        return 0;
 201}
 202#endif
 203
 204int board_eth_init(bd_t *bis)
 205{
 206        cpu_eth_init(bis);      /* Initialize TSECs first */
 207        return pci_eth_init(bis);
 208}
 209
 210#else /* CONFIG_NAND_SPL */
 211
 212int checkboard(void)
 213{
 214        puts("Board: Freescale MPC8315ERDB\n");
 215        return 0;
 216}
 217
 218void board_init_f(ulong bootflag)
 219{
 220        board_early_init_f();
 221        NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500),
 222                     CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 223        puts("NAND boot... ");
 224        timer_init();
 225        dram_init();
 226        relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd,
 227                      CONFIG_SYS_NAND_U_BOOT_RELOC);
 228}
 229
 230void board_init_r(gd_t *gd, ulong dest_addr)
 231{
 232        nand_boot();
 233}
 234
 235void putc(char c)
 236{
 237        if (gd->flags & GD_FLG_SILENT)
 238                return;
 239
 240        if (c == '\n')
 241                NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r');
 242
 243        NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c);
 244}
 245
 246#endif /* CONFIG_NAND_SPL */
 247