268 lines
6.3 KiB
C
268 lines
6.3 KiB
C
/*
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* arch/sh/boards/mach-dtt5250/setup.c
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*
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* Copyright (C) 2011 STMicroelectronics Limited
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* Author: Nunzio Raciti <nunzio.raciti@st.com>
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* STMicroelectronics STx5250 reference board support.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/leds.h>
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#include <linux/phy.h>
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#include <linux/gpio.h>
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#include <linux/tm1668.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/physmap.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/flash.h>
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#include <linux/stm/emi.h>
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#include <linux/stm/platform.h>
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#include <linux/stm/stx5206.h>
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#include <asm/irq.h>
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#define DTT5250_RED_LED stm_gpio(1, 5)
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#define DTT5250_ETH_RST stm_gpio(2, 4)
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#define DTT5250_POWER_ON stm_gpio(2, 3)
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/*
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* FLASH setup depends on board boot configuration:
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*
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* Boot Device NAND SPI
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* --------------- ----- -----
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* JE3-1 (Mode15) 0 ON 1 OFF
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* JE3-2 (Mode16) 1 OFF 0 ON
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*
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*/
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static void __init dtt5250_setup(char **cmdline_p)
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{
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printk(KERN_INFO "STMicroelectronics DTT5250 board initialisation\n");
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stx5206_early_device_init();
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stx5206_configure_asc(2, &(struct stx5206_asc_config) {
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.hw_flow_control = 0,
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.is_console = 1, });
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}
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static struct platform_device dtt5250_leds = {
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.name = "leds-gpio",
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.id = 0,
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.dev.platform_data = &(struct gpio_led_platform_data) {
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.num_leds = 1,
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.leds = (struct gpio_led[]) {
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/* Red Led on board */
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{
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.name = "RED",
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.default_trigger = "heartbeat",
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.gpio = DTT5250_RED_LED,
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.active_low = 0,
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},
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},
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},
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};
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static struct tm1668_key dtt5250_front_panel_keys[] = {
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{ 0x00001000, KEY_UP, "Up (SWF2)" },
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{ 0x00800000, KEY_DOWN, "Down (SWF7)" },
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{ 0x00008000, KEY_LEFT, "Left (SWF6)" },
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{ 0x00000010, KEY_RIGHT, "Right (SWF5)" },
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{ 0x00000080, KEY_ENTER, "Enter (SWF1)" },
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{ 0x00100000, KEY_ESC, "Escape (SWF4)" },
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};
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static struct tm1668_character dtt5250_front_panel_characters[] = {
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TM1668_7_SEG_HEX_DIGITS,
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TM1668_7_SEG_HEX_DIGITS_WITH_DOT,
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TM1668_7_SEG_SEGMENTS,
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};
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static struct platform_device dtt5250_front_panel = {
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.name = "tm1668",
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.id = -1,
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.dev.platform_data = &(struct tm1668_platform_data) {
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.gpio_dio = stm_gpio(3, 5),
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.gpio_sclk = stm_gpio(3, 4),
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.gpio_stb = stm_gpio(2, 7),
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.config = tm1668_config_6_digits_12_segments,
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.keys_num = ARRAY_SIZE(dtt5250_front_panel_keys),
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.keys = dtt5250_front_panel_keys,
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.keys_poll_period = DIV_ROUND_UP(HZ, 5),
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.brightness = 8,
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.characters_num = ARRAY_SIZE(dtt5250_front_panel_characters),
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.characters = dtt5250_front_panel_characters,
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.text = "5250",
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},
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};
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static int dtt5250_phy_reset(void *bus)
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{
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gpio_set_value(DTT5250_ETH_RST, 0);
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udelay(15000);
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gpio_set_value(DTT5250_ETH_RST, 1);
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udelay(10000);
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return 1;
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}
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static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
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.bus_id = 0,
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.phy_reset = dtt5250_phy_reset,
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.phy_mask = 0,
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};
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/* Serial Flash */
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static struct stm_plat_spifsm_data dtt5250_serial_flash = {
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.name = "n25q128",
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.nr_parts = 2,
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.parts = (struct mtd_partition []) {
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{
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.name = "Serial Flash 1",
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.size = 0x00080000,
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.offset = 0,
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}, {
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.name = "Serial Flash 2",
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.size = MTDPART_SIZ_FULL,
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.offset = MTDPART_OFS_NXTBLK,
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},
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},
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};
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/* NAND Flash */
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static struct stm_nand_bank_data dtt5250_nand_flash = {
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.csn = 0,
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.options = NAND_NO_AUTOINCR | NAND_USE_FLASH_BBT,
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.nr_partitions = 2,
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.partitions = (struct mtd_partition []) {
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{
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.name = "NAND Flash 1",
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.offset = 0,
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.size = 0x00800000
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}, {
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.name = "NAND Flash 2",
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.offset = MTDPART_OFS_NXTBLK,
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.size = MTDPART_SIZ_FULL
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},
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},
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.timing_data = &(struct stm_nand_timing_data) {
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.sig_setup = 50, /* times in ns */
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.sig_hold = 50,
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.CE_deassert = 0,
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.WE_to_RBn = 100,
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.wr_on = 10,
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.wr_off = 40,
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.rd_on = 10,
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.rd_off = 40,
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.chip_delay = 30, /* in us */
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},
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};
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static struct platform_device *dtt5250_devices[] __initdata = {
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&dtt5250_leds,
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&dtt5250_front_panel,
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};
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static int __init dtt5250_devices_init(void)
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{
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struct sysconf_field *sc;
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/* Configure Flash according to boot-device */
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sc = sysconf_claim(SYS_STA, 1, 16, 17, "boot_device");
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switch (sysconf_read(sc)) {
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case 0x0:
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/* Boot-from-NOR */
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pr_info("Configuring FLASH for boot-from-NOR\n");
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break;
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case 0x1:
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/* Boot-from-NAND */
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pr_info("Configuring FLASH for boot-from-NAND\n");
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break;
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case 0x2:
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/* Boot-from-SPI */
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pr_info("Configuring FLASH for boot-from-SPI\n");
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break;
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default:
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BUG();
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break;
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}
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sysconf_release(sc);
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/* Some of the peripherals are powered by regulators
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* triggered by the following PIO line... */
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gpio_request(DTT5250_POWER_ON, "POWER_ON");
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gpio_direction_output(DTT5250_POWER_ON, 1);
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gpio_request(DTT5250_ETH_RST, "GPIO_RST#");
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gpio_direction_output(DTT5250_ETH_RST, 0);
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udelay(15000);
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gpio_set_value(DTT5250_ETH_RST, 1);
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/* Internal I2C link */
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stx5206_configure_ssc_i2c(0);
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stx5206_configure_ssc_i2c(1);
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stx5206_configure_ssc_i2c(3);
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stx5206_configure_usb();
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stx5206_configure_ethernet(&(struct stx5206_ethernet_config) {
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.mode = stx5206_ethernet_mode_rmii,
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.ext_clk = 0,
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.phy_bus = 0,
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.phy_addr = -1,
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.mdio_bus_data = &stmmac_mdio_bus,
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});
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stx5206_configure_lirc(&(struct stx5206_lirc_config) {
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#ifdef CONFIG_LIRC_STM_UHF
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.rx_mode = stx5206_lirc_rx_mode_uhf, });
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#else
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.rx_mode = stx5206_lirc_rx_mode_ir, });
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#endif
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stx5206_configure_nand(&(struct stm_nand_config) {
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.driver = stm_nand_flex,
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.nr_banks = 1,
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.banks = &dtt5250_nand_flash,
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.rbn.flex_connected = 1,});
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stx5206_configure_spifsm(&dtt5250_serial_flash);
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stx5206_configure_mmc();
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return platform_add_devices(dtt5250_devices,
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ARRAY_SIZE(dtt5250_devices));
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}
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arch_initcall(dtt5250_devices_init);
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static void __iomem *dtt5250_ioport_map(unsigned long port, unsigned int size)
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{
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/* However picking somewhere safe isn't as easy as you might
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* think. I used to use external ROM, but that can cause
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* problems if you are in the middle of updating Flash. So I'm
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* now using the processor core version register, which is
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* guaranteed to be available, and non-writable. */
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return (void __iomem *)CCN_PVR;
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}
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struct sh_machine_vector mv_dtt5250 __initmv = {
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.mv_name = "dtt5250",
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.mv_setup = dtt5250_setup,
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.mv_nr_irqs = NR_IRQS,
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.mv_ioport_map = dtt5250_ioport_map,
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};
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