LXR uboot/board/davinci/da8xxevm/da830evm.c

   1/*
   2 * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
   3 *
   4 * Base on code from TI. Original Notices follow:
   5 *
   6 * (C) Copyright 2008, Texas Instruments, Inc. http://www.ti.com/
   7 *
   8 * Modified for DA8xx EVM.
   9 *
  10 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
  11 *
  12 * Parts are shamelessly stolen from various TI sources, original copyright
  13 * follows:
  14 * -----------------------------------------------------------------
  15 *
  16 * Copyright (C) 2004 Texas Instruments.
  17 *
  18 * ----------------------------------------------------------------------------
  19 * SPDX-License-Identifier:     GPL-2.0+
  20 * ----------------------------------------------------------------------------
  21 */
  22
  23#include <common.h>
  24#include <i2c.h>
  25#include <net.h>
  26#include <netdev.h>
  27#include <asm/arch/hardware.h>
  28#include <asm/arch/emac_defs.h>
  29#include <asm/arch/pinmux_defs.h>
  30#include <asm/io.h>
  31#include <nand.h>
  32#include <asm/ti-common/davinci_nand.h>
  33#include <asm/arch/davinci_misc.h>
  34
  35#ifdef CONFIG_DAVINCI_MMC
  36#include <mmc.h>
  37#include <asm/arch/sdmmc_defs.h>
  38#endif
  39
  40DECLARE_GLOBAL_DATA_PTR;
  41
  42static const struct pinmux_resource pinmuxes[] = {
  43#ifdef CONFIG_SPI_FLASH
  44        PINMUX_ITEM(spi0_pins_base),
  45        PINMUX_ITEM(spi0_pins_scs0),
  46        PINMUX_ITEM(spi0_pins_ena),
  47#endif
  48        PINMUX_ITEM(uart2_pins_txrx),
  49        PINMUX_ITEM(i2c0_pins),
  50#ifdef CONFIG_USB_DA8XX
  51        PINMUX_ITEM(usb_pins),
  52#endif
  53#ifdef CONFIG_USE_NAND
  54        PINMUX_ITEM(emifa_pins),
  55        PINMUX_ITEM(emifa_pins_cs0),
  56        PINMUX_ITEM(emifa_pins_cs2),
  57        PINMUX_ITEM(emifa_pins_cs3),
  58#endif
  59#if defined(CONFIG_DRIVER_TI_EMAC)
  60        PINMUX_ITEM(emac_pins_rmii),
  61        PINMUX_ITEM(emac_pins_mdio),
  62        PINMUX_ITEM(emac_pins_rmii_clk_source),
  63#endif
  64#ifdef CONFIG_DAVINCI_MMC
  65        PINMUX_ITEM(mmc0_pins_8bit)
  66#endif
  67};
  68
  69static const struct lpsc_resource lpsc[] = {
  70        { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
  71        { DAVINCI_LPSC_SPI0 },  /* Serial Flash */
  72        { DAVINCI_LPSC_EMAC },  /* image download */
  73        { DAVINCI_LPSC_UART2 }, /* console */
  74        { DAVINCI_LPSC_GPIO },
  75#ifdef CONFIG_DAVINCI_MMC
  76        { DAVINCI_LPSC_MMC_SD },
  77#endif
  78
  79};
  80
  81#ifdef CONFIG_DAVINCI_MMC
  82static struct davinci_mmc mmc_sd0 = {
  83        .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
  84        .host_caps = MMC_MODE_8BIT,
  85        .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
  86        .version = MMC_CTLR_VERSION_2,
  87};
  88
  89int board_mmc_init(bd_t *bis)
  90{
  91        mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
  92
  93        printf("%x\n", mmc_sd0.input_clk);
  94
  95        /* Add slot-0 to mmc subsystem */
  96        return davinci_mmc_init(bis, &mmc_sd0);
  97}
  98#endif
  99
 100int board_init(void)
 101{
 102#ifndef CONFIG_USE_IRQ
 103        irq_init();
 104#endif
 105
 106#ifdef CONFIG_NAND_DAVINCI
 107        /* EMIFA 100MHz clock select */
 108        writel(readl(&davinci_syscfg_regs->cfgchip3) & ~2,
 109               &davinci_syscfg_regs->cfgchip3);
 110        /* NAND CS setup */
 111        writel((DAVINCI_ABCR_WSETUP(0) |
 112                DAVINCI_ABCR_WSTROBE(2) |
 113                DAVINCI_ABCR_WHOLD(0) |
 114                DAVINCI_ABCR_RSETUP(0) |
 115                DAVINCI_ABCR_RSTROBE(2) |
 116                DAVINCI_ABCR_RHOLD(0) |
 117                DAVINCI_ABCR_TA(2) |
 118                DAVINCI_ABCR_ASIZE_8BIT),
 119               &davinci_emif_regs->ab2cr);
 120#endif
 121
 122        /* arch number of the board */
 123        gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM;
 124
 125        /* address of boot parameters */
 126        gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
 127
 128        /*
 129         * Power on required peripherals
 130         * ARM does not have access by default to PSC0 and PSC1
 131         * assuming here that the DSP bootloader has set the IOPU
 132         * such that PSC access is available to ARM
 133         */
 134        if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
 135                return 1;
 136
 137        /* setup the SUSPSRC for ARM to control emulation suspend */
 138        writel(readl(&davinci_syscfg_regs->suspsrc) &
 139               ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
 140                 DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
 141                 DAVINCI_SYSCFG_SUSPSRC_UART2),
 142               &davinci_syscfg_regs->suspsrc);
 143
 144        /* configure pinmux settings */
 145        if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
 146                return 1;
 147
 148        /* enable the console UART */
 149        writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
 150                DAVINCI_UART_PWREMU_MGMT_UTRST),
 151               &davinci_uart2_ctrl_regs->pwremu_mgmt);
 152
 153        return(0);
 154}
 155
 156
 157#ifdef CONFIG_NAND_DAVINCI
 158int board_nand_init(struct nand_chip *nand)
 159{
 160        davinci_nand_init(nand);
 161
 162        return 0;
 163}
 164#endif
 165
 166#if defined(CONFIG_DRIVER_TI_EMAC)
 167
 168#define PHY_SW_I2C_ADDR 0x5f /* Address of PHY on i2c bus */
 169
 170/*
 171 * Initializes on-board ethernet controllers.
 172 */
 173int board_eth_init(bd_t *bis)
 174{
 175        u_int8_t mac_addr[6];
 176        u_int8_t switch_start_cmd[2] = { 0x01, 0x23 };
 177        struct eth_device *dev;
 178
 179        /* Read Ethernet MAC address from EEPROM */
 180        if (dvevm_read_mac_address(mac_addr))
 181                /* set address env if not already set */
 182                davinci_sync_env_enetaddr(mac_addr);
 183
 184        /* read the address back from env */
 185        if (!eth_getenv_enetaddr("ethaddr", mac_addr))
 186                return -1;
 187
 188        /* enable the Ethernet switch in the 3 port PHY */
 189        if (i2c_write(PHY_SW_I2C_ADDR, 0, 0,
 190                        switch_start_cmd, sizeof(switch_start_cmd))) {
 191                printf("Ethernet switch start failed!\n");
 192                return -1;
 193        }
 194
 195        /* finally, initialise the driver */
 196        if (!davinci_emac_initialize()) {
 197                printf("Error: Ethernet init failed!\n");
 198                return -1;
 199        }
 200
 201        dev = eth_get_dev();
 202
 203        /* provide the resulting addr to the driver */
 204        memcpy(dev->enetaddr, mac_addr, 6);
 205        dev->write_hwaddr(dev);
 206
 207        return 0;
 208}
 209#endif /* CONFIG_DRIVER_TI_EMAC */
 210