/*
* Texas Instruments TNETV107X EVM Board Support
*
* Copyright (C) 2010 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 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/init.h>
#include <linux/console.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/ratelimit.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/spi/spi.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <mach/irqs.h>
#include <mach/edma.h>
#include <mach/mux.h>
#include <mach/cp_intc.h>
#include <mach/tnetv107x.h>
#define EVM_MMC_WP_GPIO 21
#define EVM_MMC_CD_GPIO 24
#define EVM_SPI_CS_GPIO 54
static int initialize_gpio(int gpio, char *desc)
{
int ret;
ret = gpio_request(gpio, desc);
if (ret < 0) {
pr_err_ratelimited("cannot open %s gpio\n", desc);
return -ENOSYS;
}
gpio_direction_input(gpio);
return gpio;
}
static int mmc_get_cd(int index)
{
static int gpio;
if (!gpio)
gpio = initialize_gpio(EVM_MMC_CD_GPIO, "mmc card detect");
if (gpio < 0)
return gpio;
return gpio_get_value(gpio) ? 0 : 1;
}
static int mmc_get_ro(int index)
{
static int gpio;
if (!gpio)
gpio = initialize_gpio(EVM_MMC_WP_GPIO, "mmc write protect");
if (gpio < 0)
return gpio;
return gpio_get_value(gpio) ? 1 : 0;
}
static struct davinci_mmc_config mmc_config = {
.get_cd = mmc_get_cd,
.get_ro = mmc_get_ro,
.wires = 4,
.max_freq = 50000000,
.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.version = MMC_CTLR_VERSION_1,
};
static const short sdio1_pins[] __initdata = {
TNETV107X_SDIO1_CLK_1, TNETV107X_SDIO1_CMD_1,
TNETV107X_SDIO1_DATA0_1, TNETV107X_SDIO1_DATA1_1,
TNETV107X_SDIO1_DATA2_1, TNETV107X_SDIO1_DATA3_1,
TNETV107X_GPIO21, TNETV107X_GPIO24,
-1
};
static const short uart1_pins[] __initdata = {
TNETV107X_UART1_RD, TNETV107X_UART1_TD,
-1
};
static const short ssp_pins[] __initdata = {
TNETV107X_SSP0_0, TNETV107X_SSP0_1, TNETV107X_SSP0_2,
TNETV107X_SSP1_0, TNETV107X_SSP1_1, TNETV107X_SSP1_2,
TNETV107X_SSP1_3, -1
};
static struct mtd_partition nand_partitions[] = {
/* bootloader (U-Boot, etc) in first 12 sectors */
{
.name = "bootloader",
.offset = 0,
.size = (12*SZ_128K),
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* bootloader params in the next sector */
{
.name = "params",
.offset = MTDPART_OFS_NXTBLK,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* kernel */
{
.name = "kernel",
.offset = MTDPART_OFS_NXTBLK,
.size = SZ_4M,
.mask_flags = 0,
},
/* file system */
{
.name = "filesystem",
.offset = MTDPART_OFS_NXTBLK,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
}
};
static struct davinci_nand_pdata nand_config = {
.mask_cle = 0x4000,
.mask_ale = 0x2000,
.parts = nand_partitions,
.nr_parts = ARRAY_SIZE(nand_partitions),
.ecc_mode = NAND_ECC_HW,
.bbt_options = NAND_BBT_USE_FLASH,
.ecc_bits = 1,
};
static struct davinci_uart_config serial_config __initconst = {
.enabled_uarts = BIT(1),
};
static const uint32_t keymap[] = {
KEY(0, 0, KEY_NUMERIC_1),
KEY(0, 1, KEY_NUMERIC_2),
KEY(0, 2, KEY_NUMERIC_3),
KEY(0, 3, KEY_FN_F1),
KEY(0, 4, KEY_MENU),
KEY(1, 0, KEY_NUMERIC_4),
KEY(1, 1, KEY_NUMERIC_5),
KEY(1, 2, KEY_NUMERIC_6),
KEY(1, 3, KEY_UP),
KEY(1, 4, KEY_FN_F2),
KEY(2, 0, KEY_NUMERIC_7),
KEY(2, 1, KEY_NUMERIC_8),
KEY(2, 2, KEY_NUMERIC_9),
KEY(2, 3, KEY_LEFT),
KEY(2, 4, KEY_ENTER),
KEY(3, 0, KEY_NUMERIC_STAR),
KEY(3, 1, KEY_NUMERIC_0),
KEY(3, 2, KEY_NUMERIC_POUND),
KEY(3, 3, KEY_DOWN),
KEY(3, 4, KEY_RIGHT),
KEY(4, 0, KEY_FN_F3),
KEY(4, 1, KEY_FN_F4),
KEY(4, 2, KEY_MUTE),
KEY(4, 3, KEY_HOME),
KEY(4, 4, KEY_BACK),
KEY(5, 0, KEY_VOLUMEDOWN),
KEY(5, 1, KEY_VOLUMEUP),
KEY(5, 2, KEY_F1),
KEY(5, 3, KEY_F2),
KEY(5, 4, KEY_F3),
};
static const struct matrix_keymap_data keymap_data = {
.keymap = keymap,
.keymap_size = ARRAY_SIZE(keymap),
};
static struct matrix_keypad_platform_data keypad_config = {
.keymap_data = &keymap_data,
.num_row_gpios = 6,
.num_col_gpios = 5,
.debounce_ms = 0, /* minimum */
.active_low = 0, /* pull up realization */
.no_autorepeat = 0,
};
static void spi_select_device(int cs)
{
static int gpio;
if (!gpio) {
int ret;
ret = gpio_request(EVM_SPI_CS_GPIO, "spi chipsel");
if (ret < 0) {
pr_err("cannot open spi chipsel gpio\n");
gpio = -ENOSYS;
return;
} else {
gpio = EVM_SPI_CS_GPIO;
gpio_direction_output(gpio, 0);
}
}
if (gpio < 0)
return;
return gpio_set_value(gpio, cs ? 1 : 0);
}
static struct ti_ssp_spi_data spi_master_data = {
.num_cs = 2,
.select = spi_select_device,
.iosel = SSP_PIN_SEL(0, SSP_CLOCK) | SSP_PIN_SEL(1, SSP_DATA) |
SSP_PIN_SEL(2, SSP_CHIPSEL) | SSP_PIN_SEL(3, SSP_IN) |
SSP_INPUT_SEL(3),
};
static struct ti_ssp_data ssp_config = {
.out_clock = 250 * 1000,
.dev_data = {
[1] = {
.dev_name = "ti-ssp-spi",
.pdata = &spi_master_data,
.pdata_size = sizeof(spi_master_data),
},
},
};
static struct tnetv107x_device_info evm_device_info __initconst = {
.serial_config = &serial_config,
.mmc_config[1] = &mmc_config, /* controller 1 */
.nand_config[0] = &nand_config, /* chip select 0 */
.keypad_config = &keypad_config,
.ssp_config = &ssp_config,
};
static struct spi_board_info spi_info[] __initconst = {
};
static __init void tnetv107x_evm_board_init(void)
{
davinci_cfg_reg_list(sdio1_pins);
davinci_cfg_reg_list(uart1_pins);
davinci_cfg_reg_list(ssp_pins);
tnetv107x_devices_init(&evm_device_info);
spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init tnetv107x_evm_console_init(void)
{
return add_preferred_console("ttyS", 0, "115200");
}
console_initcall(tnetv107x_evm_console_init);
#endif
MACHINE_START(TNETV107X, "TNETV107X EVM")
.atag_offset = 0x100,
.map_io = tnetv107x_init,
.init_irq = cp_intc_init,
.timer = &davinci_timer,
.init_machine = tnetv107x_evm_board_init,
.init_late = davinci_init_late,
.dma_zone_size = SZ_128M,
.restart = tnetv107x_restart,
MACHINE_END
