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