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 * See file CREDITS for list of people who contributed to this
   8 * project.
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License as
  12 * published by the Free Software Foundation; either version 2 of
  13 * the License, or (at your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful,
  16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS for A PARTICULAR PURPOSE.  See the
  18 * GNU General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23 * MA 02111-1307 USA
  24 */
  25
  26#include <common.h>
  27#include <hwconfig.h>
  28#include <i2c.h>
  29#include <libfdt.h>
  30#include <fdt_support.h>
  31#include <pci.h>
  32#include <mpc83xx.h>
  33#include <netdev.h>
  34#include <asm/io.h>
  35#include <ns16550.h>
  36#include <nand.h>
  37
  38DECLARE_GLOBAL_DATA_PTR;
  39
  40int board_early_init_f(void)
  41{
  42        volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
  43
  44        if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
  45                gd->flags |= GD_FLG_SILENT;
  46
  47        return 0;
  48}
  49
  50#ifndef CONFIG_NAND_SPL
  51
  52static u8 read_board_info(void)
  53{
  54        u8 val8;
  55        i2c_set_bus_num(0);
  56
  57        if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
  58                return val8;
  59        else
  60                return 0;
  61}
  62
  63int checkboard(void)
  64{
  65        static const char * const rev_str[] = {
  66                "0.0",
  67                "0.1",
  68                "1.0",
  69                "1.1",
  70                "<unknown>",
  71        };
  72        u8 info;
  73        int i;
  74
  75        info = read_board_info();
  76        i = (!info) ? 4: info & 0x03;
  77
  78        printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]);
  79
  80        return 0;
  81}
  82
  83static struct pci_region pci_regions[] = {
  84        {
  85                bus_start: CONFIG_SYS_PCI_MEM_BASE,
  86                phys_start: CONFIG_SYS_PCI_MEM_PHYS,
  87                size: CONFIG_SYS_PCI_MEM_SIZE,
  88                flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
  89        },
  90        {
  91                bus_start: CONFIG_SYS_PCI_MMIO_BASE,
  92                phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
  93                size: CONFIG_SYS_PCI_MMIO_SIZE,
  94                flags: PCI_REGION_MEM
  95        },
  96        {
  97                bus_start: CONFIG_SYS_PCI_IO_BASE,
  98                phys_start: CONFIG_SYS_PCI_IO_PHYS,
  99                size: CONFIG_SYS_PCI_IO_SIZE,
 100                flags: PCI_REGION_IO
 101        }
 102};
 103
 104static struct pci_region pcie_regions_0[] = {
 105        {
 106                .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
 107                .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
 108                .size = CONFIG_SYS_PCIE1_MEM_SIZE,
 109                .flags = PCI_REGION_MEM,
 110        },
 111        {
 112                .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
 113                .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
 114                .size = CONFIG_SYS_PCIE1_IO_SIZE,
 115                .flags = PCI_REGION_IO,
 116        },
 117};
 118
 119static struct pci_region pcie_regions_1[] = {
 120        {
 121                .bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
 122                .phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
 123                .size = CONFIG_SYS_PCIE2_MEM_SIZE,
 124                .flags = PCI_REGION_MEM,
 125        },
 126        {
 127                .bus_start = CONFIG_SYS_PCIE2_IO_BASE,
 128                .phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
 129                .size = CONFIG_SYS_PCIE2_IO_SIZE,
 130                .flags = PCI_REGION_IO,
 131        },
 132};
 133
 134void pci_init_board(void)
 135{
 136        volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
 137        volatile sysconf83xx_t *sysconf = &immr->sysconf;
 138        volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
 139        volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
 140        volatile law83xx_t *pcie_law = sysconf->pcielaw;
 141        struct pci_region *reg[] = { pci_regions };
 142        struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
 143
 144        /* Enable all 3 PCI_CLK_OUTPUTs. */
 145        clk->occr |= 0xe0000000;
 146
 147        /*
 148         * Configure PCI Local Access Windows
 149         */
 150        pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
 151        pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
 152
 153        pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
 154        pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
 155
 156        mpc83xx_pci_init(1, reg);
 157
 158        /* Configure the clock for PCIE controller */
 159        clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM,
 160                                    SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1);
 161
 162        /* Deassert the resets in the control register */
 163        out_be32(&sysconf->pecr1, 0xE0008000);
 164        out_be32(&sysconf->pecr2, 0xE0008000);
 165        udelay(2000);
 166
 167        /* Configure PCI Express Local Access Windows */
 168        out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
 169        out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
 170
 171        out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
 172        out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
 173
 174        mpc83xx_pcie_init(2, pcie_reg);
 175}
 176
 177#if defined(CONFIG_OF_BOARD_SETUP)
 178void fdt_tsec1_fixup(void *fdt, bd_t *bd)
 179{
 180        const char disabled[] = "disabled";
 181        const char *path;
 182        int ret;
 183
 184        if (hwconfig_arg_cmp("board_type", "tsec1")) {
 185                return;
 186        } else if (!hwconfig_arg_cmp("board_type", "ulpi")) {
 187                printf("NOTICE: No or unknown board_type hwconfig specified.\n"
 188                       "        Assuming board with TSEC1.\n");
 189                return;
 190        }
 191
 192        ret = fdt_path_offset(fdt, "/aliases");
 193        if (ret < 0) {
 194                printf("WARNING: can't find /aliases node\n");
 195                return;
 196        }
 197
 198        path = fdt_getprop(fdt, ret, "ethernet0", NULL);
 199        if (!path) {
 200                printf("WARNING: can't find ethernet0 alias\n");
 201                return;
 202        }
 203
 204        do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1);
 205}
 206
 207void ft_board_setup(void *blob, bd_t *bd)
 208{
 209        ft_cpu_setup(blob, bd);
 210#ifdef CONFIG_PCI
 211        ft_pci_setup(blob, bd);
 212#endif
 213        fdt_fixup_dr_usb(blob, bd);
 214        fdt_tsec1_fixup(blob, bd);
 215}
 216#endif
 217
 218int board_eth_init(bd_t *bis)
 219{
 220        cpu_eth_init(bis);      /* Initialize TSECs first */
 221        return pci_eth_init(bis);
 222}
 223
 224#else /* CONFIG_NAND_SPL */
 225
 226int checkboard(void)
 227{
 228        puts("Board: Freescale MPC8315ERDB\n");
 229        return 0;
 230}
 231
 232void board_init_f(ulong bootflag)
 233{
 234        board_early_init_f();
 235        NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500),
 236                     CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 237        puts("NAND boot... ");
 238        init_timebase();
 239        initdram(0);
 240        relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd,
 241                      CONFIG_SYS_NAND_U_BOOT_RELOC);
 242}
 243
 244void board_init_r(gd_t *gd, ulong dest_addr)
 245{
 246        nand_boot();
 247}
 248
 249void putc(char c)
 250{
 251        if (gd->flags & GD_FLG_SILENT)
 252                return;
 253
 254        if (c == '\n')
 255                NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r');
 256
 257        NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c);
 258}
 259
 260#endif /* CONFIG_NAND_SPL */
 261