LXR uboot/board/freescale/mpc8308rdb/mpc8308rdb.c

   1/*
   2 * Copyright (C) 2010 Freescale Semiconductor, Inc.
   3 * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <hwconfig.h>
  10#include <i2c.h>
  11#include <spi.h>
  12#include <libfdt.h>
  13#include <fdt_support.h>
  14#include <pci.h>
  15#include <mpc83xx.h>
  16#include <vsc7385.h>
  17#include <netdev.h>
  18#include <fsl_esdhc.h>
  19#include <asm/io.h>
  20#include <asm/fsl_serdes.h>
  21#include <asm/fsl_mpc83xx_serdes.h>
  22
  23DECLARE_GLOBAL_DATA_PTR;
  24
  25/*
  26 * The following are used to control the SPI chip selects for the SPI command.
  27 */
  28#ifdef CONFIG_MPC8XXX_SPI
  29
  30#define SPI_CS_MASK     0x00400000
  31
  32int spi_cs_is_valid(unsigned int bus, unsigned int cs)
  33{
  34        return bus == 0 && cs == 0;
  35}
  36
  37void spi_cs_activate(struct spi_slave *slave)
  38{
  39        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
  40
  41        /* active low */
  42        clrbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
  43}
  44
  45void spi_cs_deactivate(struct spi_slave *slave)
  46{
  47        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
  48
  49        /* inactive high */
  50        setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
  51}
  52#endif /* CONFIG_MPC8XXX_SPI */
  53
  54#ifdef CONFIG_FSL_ESDHC
  55int board_mmc_init(bd_t *bd)
  56{
  57        return fsl_esdhc_mmc_init(bd);
  58}
  59#endif
  60
  61static u8 read_board_info(void)
  62{
  63        u8 val8;
  64        i2c_set_bus_num(0);
  65
  66        if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
  67                return val8;
  68        else
  69                return 0;
  70}
  71
  72int checkboard(void)
  73{
  74        static const char * const rev_str[] = {
  75                "1.0",
  76                "<reserved>",
  77                "<reserved>",
  78                "<reserved>",
  79                "<unknown>",
  80        };
  81        u8 info;
  82        int i;
  83
  84        info = read_board_info();
  85        i = (!info) ? 4 : info & 0x03;
  86
  87        printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]);
  88
  89        return 0;
  90}
  91
  92static struct pci_region pcie_regions_0[] = {
  93        {
  94                .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
  95                .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
  96                .size = CONFIG_SYS_PCIE1_MEM_SIZE,
  97                .flags = PCI_REGION_MEM,
  98        },
  99        {
 100                .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
 101                .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
 102                .size = CONFIG_SYS_PCIE1_IO_SIZE,
 103                .flags = PCI_REGION_IO,
 104        },
 105};
 106
 107void pci_init_board(void)
 108{
 109        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 110        sysconf83xx_t *sysconf = &immr->sysconf;
 111        law83xx_t *pcie_law = sysconf->pcielaw;
 112        struct pci_region *pcie_reg[] = { pcie_regions_0 };
 113
 114        fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
 115                                        FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 116
 117        /* Deassert the resets in the control register */
 118        out_be32(&sysconf->pecr1, 0xE0008000);
 119        udelay(2000);
 120
 121        /* Configure PCI Express Local Access Windows */
 122        out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
 123        out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
 124
 125        mpc83xx_pcie_init(1, pcie_reg);
 126}
 127/*
 128 * Miscellaneous late-boot configurations
 129 *
 130 * If a VSC7385 microcode image is present, then upload it.
 131*/
 132int misc_init_r(void)
 133{
 134#ifdef CONFIG_MPC8XXX_SPI
 135        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 136        sysconf83xx_t *sysconf = &immr->sysconf;
 137
 138        /*
 139         * Set proper bits in SICRH to allow SPI on header J8
 140         *
 141         * NOTE: this breaks the TSEC2 interface, attached to the Vitesse
 142         * switch. The pinmux configuration does not have a fine enough
 143         * granularity to support both simultaneously.
 144         */
 145        clrsetbits_be32(&sysconf->sicrh, SICRH_GPIO_A_TSEC2, SICRH_GPIO_A_GPIO);
 146        puts("WARNING: SPI enabled, TSEC2 support is broken\n");
 147
 148        /* Set header J8 SPI chip select output, disabled */
 149        setbits_be32(&immr->gpio[0].dir, SPI_CS_MASK);
 150        setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
 151#endif
 152
 153#ifdef CONFIG_VSC7385_IMAGE
 154        if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
 155                CONFIG_VSC7385_IMAGE_SIZE)) {
 156                puts("Failure uploading VSC7385 microcode.\n");
 157                return 1;
 158        }
 159#endif
 160
 161        return 0;
 162}
 163#if defined(CONFIG_OF_BOARD_SETUP)
 164int ft_board_setup(void *blob, bd_t *bd)
 165{
 166        ft_cpu_setup(blob, bd);
 167        fsl_fdt_fixup_dr_usb(blob, bd);
 168        fdt_fixup_esdhc(blob, bd);
 169
 170        return 0;
 171}
 172#endif
 173
 174int board_eth_init(bd_t *bis)
 175{
 176        int rv, num_if = 0;
 177
 178        /* Initialize TSECs first */
 179        rv = cpu_eth_init(bis);
 180        if (rv >= 0)
 181                num_if += rv;
 182        else
 183                printf("ERROR: failed to initialize TSECs.\n");
 184
 185        rv = pci_eth_init(bis);
 186        if (rv >= 0)
 187                num_if += rv;
 188        else
 189                printf("ERROR: failed to initialize PCI Ethernet.\n");
 190
 191        return num_if;
 192}
 193