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/*
* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
*
* Base on code from TI. Original Notices follow:
*
* (C) Copyright 2008, Texas Instruments, Inc. http://www.ti.com/
*
* Modified for DA8xx EVM.
*
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
*
* Parts are shamelessly stolen from various TI sources, original copyright
* follows:
* -----------------------------------------------------------------
*
* Copyright (C) 2004 Texas Instruments.
*
* ----------------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* ----------------------------------------------------------------------------
*/
#include <common.h>
#include <i2c.h>
#include <net.h>
#include <netdev.h>
#include <asm/arch/hardware.h>
#include <asm/arch/emif_defs.h>
#include <asm/arch/emac_defs.h>
#include <asm/arch/pinmux_defs.h>
#include <asm/io.h>
#include <nand.h>
#include <asm/arch/nand_defs.h>
#include <asm/arch/davinci_misc.h>
#ifdef CONFIG_DAVINCI_MMC
#include <mmc.h>
#include <asm/arch/sdmmc_defs.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
static const struct pinmux_resource pinmuxes[] = {
#ifdef CONFIG_SPI_FLASH
PINMUX_ITEM(spi0_pins_base),
PINMUX_ITEM(spi0_pins_scs0),
PINMUX_ITEM(spi0_pins_ena),
#endif
PINMUX_ITEM(uart2_pins_txrx),
PINMUX_ITEM(i2c0_pins),
#ifdef CONFIG_USB_DA8XX
PINMUX_ITEM(usb_pins),
#endif
#ifdef CONFIG_USE_NAND
PINMUX_ITEM(emifa_pins),
PINMUX_ITEM(emifa_pins_cs0),
PINMUX_ITEM(emifa_pins_cs2),
PINMUX_ITEM(emifa_pins_cs3),
#endif
#if defined(CONFIG_DRIVER_TI_EMAC)
PINMUX_ITEM(emac_pins_rmii),
PINMUX_ITEM(emac_pins_mdio),
PINMUX_ITEM(emac_pins_rmii_clk_source),
#endif
#ifdef CONFIG_DAVINCI_MMC
PINMUX_ITEM(mmc0_pins_8bit)
#endif
};
static const struct lpsc_resource lpsc[] = {
{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
{ DAVINCI_LPSC_SPI0 }, /* Serial Flash */
{ DAVINCI_LPSC_EMAC }, /* image download */
{ DAVINCI_LPSC_UART2 }, /* console */
{ DAVINCI_LPSC_GPIO },
#ifdef CONFIG_DAVINCI_MMC
{ DAVINCI_LPSC_MMC_SD },
#endif
};
#ifdef CONFIG_DAVINCI_MMC
static struct davinci_mmc mmc_sd0 = {
.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
.host_caps = MMC_MODE_8BIT,
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
.version = MMC_CTLR_VERSION_2,
};
int board_mmc_init(bd_t *bis)
{
mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
printf("%x\n", mmc_sd0.input_clk);
/* Add slot-0 to mmc subsystem */
return davinci_mmc_init(bis, &mmc_sd0);
}
#endif
int board_init(void)
{
#ifndef CONFIG_USE_IRQ
irq_init();
#endif
#ifdef CONFIG_NAND_DAVINCI
/* EMIFA 100MHz clock select */
writel(readl(&davinci_syscfg_regs->cfgchip3) & ~2,
&davinci_syscfg_regs->cfgchip3);
/* NAND CS setup */
writel((DAVINCI_ABCR_WSETUP(0) |
DAVINCI_ABCR_WSTROBE(2) |
DAVINCI_ABCR_WHOLD(0) |
DAVINCI_ABCR_RSETUP(0) |
DAVINCI_ABCR_RSTROBE(2) |
DAVINCI_ABCR_RHOLD(0) |
DAVINCI_ABCR_TA(2) |
DAVINCI_ABCR_ASIZE_8BIT),
&davinci_emif_regs->ab2cr);
#endif
/* arch number of the board */
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM;
/* address of boot parameters */
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
/*
* Power on required peripherals
* ARM does not have access by default to PSC0 and PSC1
* assuming here that the DSP bootloader has set the IOPU
* such that PSC access is available to ARM
*/
if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
return 1;
/* setup the SUSPSRC for ARM to control emulation suspend */
writel(readl(&davinci_syscfg_regs->suspsrc) &
~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
DAVINCI_SYSCFG_SUSPSRC_UART2),
&davinci_syscfg_regs->suspsrc);
/* configure pinmux settings */
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
return 1;
/* enable the console UART */
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
DAVINCI_UART_PWREMU_MGMT_UTRST),
&davinci_uart2_ctrl_regs->pwremu_mgmt);
return(0);
}
#ifdef CONFIG_NAND_DAVINCI
int board_nand_init(struct nand_chip *nand)
{
davinci_nand_init(nand);
return 0;
}
#endif
#if defined(CONFIG_DRIVER_TI_EMAC)
#define PHY_SW_I2C_ADDR 0x5f /* Address of PHY on i2c bus */
/*
* Initializes on-board ethernet controllers.
*/
int board_eth_init(bd_t *bis)
{
u_int8_t mac_addr[6];
u_int8_t switch_start_cmd[2] = { 0x01, 0x23 };
struct eth_device *dev;
/* Read Ethernet MAC address from EEPROM */
if (dvevm_read_mac_address(mac_addr))
/* set address env if not already set */
davinci_sync_env_enetaddr(mac_addr);
/* read the address back from env */
if (!eth_getenv_enetaddr("ethaddr", mac_addr))
return -1;
/* enable the Ethernet switch in the 3 port PHY */
if (i2c_write(PHY_SW_I2C_ADDR, 0, 0,
switch_start_cmd, sizeof(switch_start_cmd))) {
printf("Ethernet switch start failed!\n");
return -1;
}
/* finally, initialise the driver */
if (!davinci_emac_initialize()) {
printf("Error: Ethernet init failed!\n");
return -1;
}
dev = eth_get_dev();
/* provide the resulting addr to the driver */
memcpy(dev->enetaddr, mac_addr, 6);
dev->write_hwaddr(dev);
return 0;
}
#endif /* CONFIG_DRIVER_TI_EMAC */
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