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/*
* TI DaVinci DM365 EVM board support
*
* Copyright (C) 2009 Texas Instruments Incorporated
*
* 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 version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/i2c/at24.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/mux.h>
#include <mach/hardware.h>
#include <mach/dm365.h>
#include <mach/psc.h>
#include <mach/common.h>
#include <mach/i2c.h>
#include <linux/i2c.h>
#include <mach/serial.h>
#include <mach/common.h>
#include <mach/mmc.h>
#define DM365_EVM_PHY_MASK (0x2)
#define DM365_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
static struct at24_platform_data eeprom_info = {
.byte_len = (256*1024) / 8,
.page_size = 64,
.flags = AT24_FLAG_ADDR16,
.setup = davinci_get_mac_addr,
.context = (void *)0x7f00,
};
static struct i2c_board_info i2c_info[] = {
{
I2C_BOARD_INFO("24c256", 0x50),
.platform_data = &eeprom_info,
},
};
static struct davinci_i2c_platform_data i2c_pdata = {
.bus_freq = 400 /* kHz */,
.bus_delay = 0 /* usec */,
};
static struct davinci_mmc_config dm365evm_mmc_config = {
.wires = 4,
.max_freq = 50000000,
.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.version = MMC_CTLR_VERSION_2,
};
static void dm365evm_emac_configure(void)
{
/*
* EMAC pins are multiplexed with GPIO and UART
* Further details are available at the DM365 ARM
* Subsystem Users Guide(sprufg5.pdf) pages 125 - 127
*/
davinci_cfg_reg(DM365_EMAC_TX_EN);
davinci_cfg_reg(DM365_EMAC_TX_CLK);
davinci_cfg_reg(DM365_EMAC_COL);
davinci_cfg_reg(DM365_EMAC_TXD3);
davinci_cfg_reg(DM365_EMAC_TXD2);
davinci_cfg_reg(DM365_EMAC_TXD1);
davinci_cfg_reg(DM365_EMAC_TXD0);
davinci_cfg_reg(DM365_EMAC_RXD3);
davinci_cfg_reg(DM365_EMAC_RXD2);
davinci_cfg_reg(DM365_EMAC_RXD1);
davinci_cfg_reg(DM365_EMAC_RXD0);
davinci_cfg_reg(DM365_EMAC_RX_CLK);
davinci_cfg_reg(DM365_EMAC_RX_DV);
davinci_cfg_reg(DM365_EMAC_RX_ER);
davinci_cfg_reg(DM365_EMAC_CRS);
davinci_cfg_reg(DM365_EMAC_MDIO);
davinci_cfg_reg(DM365_EMAC_MDCLK);
/*
* EMAC interrupts are multiplexed with GPIO interrupts
* Details are available at the DM365 ARM
* Subsystem Users Guide(sprufg5.pdf) pages 133 - 134
*/
davinci_cfg_reg(DM365_INT_EMAC_RXTHRESH);
davinci_cfg_reg(DM365_INT_EMAC_RXPULSE);
davinci_cfg_reg(DM365_INT_EMAC_TXPULSE);
davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
}
static void dm365evm_mmc_configure(void)
{
/*
* MMC/SD pins are multiplexed with GPIO and EMIF
* Further details are available at the DM365 ARM
* Subsystem Users Guide(sprufg5.pdf) pages 118, 128 - 131
*/
davinci_cfg_reg(DM365_SD1_CLK);
davinci_cfg_reg(DM365_SD1_CMD);
davinci_cfg_reg(DM365_SD1_DATA3);
davinci_cfg_reg(DM365_SD1_DATA2);
davinci_cfg_reg(DM365_SD1_DATA1);
davinci_cfg_reg(DM365_SD1_DATA0);
}
static void __init evm_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
}
static struct davinci_uart_config uart_config __initdata = {
.enabled_uarts = (1 << 0),
};
static void __init dm365_evm_map_io(void)
{
dm365_init();
}
static __init void dm365_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
evm_init_i2c();
davinci_serial_init(&uart_config);
dm365evm_emac_configure();
dm365evm_mmc_configure();
davinci_setup_mmc(0, &dm365evm_mmc_config);
davinci_setup_mmc(1, &dm365evm_mmc_config);
soc_info->emac_pdata->phy_mask = DM365_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DM365_EVM_MDIO_FREQUENCY;
}
static __init void dm365_evm_irq_init(void)
{
davinci_irq_init();
}
MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (0x80000100),
.map_io = dm365_evm_map_io,
.init_irq = dm365_evm_irq_init,
.timer = &davinci_timer,
.init_machine = dm365_evm_init,
MACHINE_END
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