+/*
+ * arch/arm/mach-kirkwood/net2big_v2-setup.c
+ *
+ * LaCie 2Big Network v2 board setup
+ *
+ * Copyright (C) 2010 Simon Guinot <sguinot@lacie.com>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.h>
+#include <linux/ata_platform.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/input.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/leds.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <mach/kirkwood.h>
+#include <plat/time.h>
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * 512KB SPI Flash on Boot Device (MACRONIX MX25L4005)
+ ****************************************************************************/
+
+static struct mtd_partition net2big_v2_flash_parts[] = {
+ {
+ .name = "u-boot",
+ .size = MTDPART_SIZ_FULL,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+};
+
+static const struct flash_platform_data net2big_v2_flash = {
+ .type = "mx25l4005a",
+ .name = "spi_flash",
+ .parts = net2big_v2_flash_parts,
+ .nr_parts = ARRAY_SIZE(net2big_v2_flash_parts),
+};
+
+static struct spi_board_info __initdata net2big_v2_spi_slave_info[] = {
+ {
+ .modalias = "m25p80",
+ .platform_data = &net2big_v2_flash,
+ .irq = -1,
+ .max_speed_hz = 20000000,
+ .bus_num = 0,
+ .chip_select = 0,
+ },
+};
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data net2big_v2_ge00_data = {
+ .phy_addr = MV643XX_ETH_PHY_ADDR(8),
+};
+
+/*****************************************************************************
+ * I2C devices
+ ****************************************************************************/
+
+static struct at24_platform_data at24c04 = {
+ .byte_len = SZ_4K / 8,
+ .page_size = 16,
+};
+
+/*
+ * i2c addr | chip | description
+ * 0x50 | HT24LC04 | eeprom (512B)
+ */
+
+static struct i2c_board_info __initdata net2big_v2_i2c_info[] = {
+ {
+ I2C_BOARD_INFO("24c04", 0x50),
+ .platform_data = &at24c04,
+ }
+};
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+
+static struct mv_sata_platform_data net2big_v2_sata_data = {
+ .n_ports = 2,
+};
+
+static int __initdata net2big_v2_gpio_hdd_power[] = { 16, 17 };
+
+static void __init net2big_v2_sata_power_init(void)
+{
+ int i;
+ int err;
+
+ /* Power up all hard disks. */
+ for (i = 0; i < ARRAY_SIZE(net2big_v2_gpio_hdd_power); i++) {
+ err = gpio_request(net2big_v2_gpio_hdd_power[i], NULL);
+ if (err == 0) {
+ err = gpio_direction_output(
+ net2big_v2_gpio_hdd_power[i], 1);
+ /* Free the HDD power GPIOs. This allow user-space to
+ * configure them via the gpiolib sysfs interface. */
+ gpio_free(net2big_v2_gpio_hdd_power[i]);
+ }
+ if (err)
+ pr_err("net2big_v2: failed to power-up HDD%d\n", i + 1);
+ }
+}
+
+/*****************************************************************************
+ * GPIO keys
+ ****************************************************************************/
+
+#define NET2BIG_V2_GPIO_SWITCH_POWER_ON 13
+#define NET2BIG_V2_GPIO_SWITCH_POWER_OFF 15
+#define NET2BIG_V2_GPIO_FUNC_BUTTON 34
+
+#define NET2BIG_V2_SWITCH_POWER_ON 0x1
+#define NET2BIG_V2_SWITCH_POWER_OFF 0x2
+
+static struct gpio_keys_button net2big_v2_buttons[] = {
+ [0] = {
+ .type = EV_SW,
+ .code = NET2BIG_V2_SWITCH_POWER_ON,
+ .gpio = NET2BIG_V2_GPIO_SWITCH_POWER_ON,
+ .desc = "Back power switch (on|auto)",
+ .active_low = 1,
+ },
+ [1] = {
+ .type = EV_SW,
+ .code = NET2BIG_V2_SWITCH_POWER_OFF,
+ .gpio = NET2BIG_V2_GPIO_SWITCH_POWER_OFF,
+ .desc = "Back power switch (auto|off)",
+ .active_low = 1,
+ },
+ [2] = {
+ .code = KEY_OPTION,
+ .gpio = NET2BIG_V2_GPIO_FUNC_BUTTON,
+ .desc = "Function button",
+ .active_low = 1,
+ },
+};
+
+static struct gpio_keys_platform_data net2big_v2_button_data = {
+ .buttons = net2big_v2_buttons,
+ .nbuttons = ARRAY_SIZE(net2big_v2_buttons),
+};
+
+static struct platform_device net2big_v2_gpio_buttons = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &net2big_v2_button_data,
+ },
+};
+
+/*****************************************************************************
+ * GPIO LEDs
+ ****************************************************************************/
+
+/*
+ * The LEDs are controlled by a CPLD and can be configured through a GPIO
+ * extension bus:
+ *
+ * - address register : bit [0-2] -> GPIO [47-49]
+ * - data register : bit [0-2] -> GPIO [44-46]
+ * - enable register : GPIO 29
+ *
+ * Address register selection:
+ *
+ * addr | register
+ * ----------------------------
+ * 0 | front LED
+ * 1 | front LED brightness
+ * 2 | HDD LED brightness
+ * 3 | HDD1 LED
+ * 4 | HDD2 LED
+ *
+ * Data register configuration:
+ *
+ * data | LED brightness
+ * -------------------------------------------------
+ * 0 | min (off)
+ * - | -
+ * 7 | max
+ *
+ * data | front LED mode
+ * -------------------------------------------------
+ * 0 | fix off
+ * 1 | fix blue on
+ * 2 | fix red on
+ * 3 | blink blue on=1 sec and blue off=1 sec
+ * 4 | blink red on=1 sec and red off=1 sec
+ * 5 | blink blue on=2.5 sec and red on=0.5 sec
+ * 6 | blink blue on=1 sec and red on=1 sec
+ * 7 | blink blue on=0.5 sec and blue off=2.5 sec
+ *
+ * data | HDD LED mode
+ * -------------------------------------------------
+ * 0 | fix blue on
+ * 1 | SATA activity blink
+ * 2 | fix red on
+ * 3 | blink blue on=1 sec and blue off=1 sec
+ * 4 | blink red on=1 sec and red off=1 sec
+ * 5 | blink blue on=2.5 sec and red on=0.5 sec
+ * 6 | blink blue on=1 sec and red on=1 sec
+ * 7 | blink blue on=0.5 sec and blue off=2.5 sec
+ */
+
+/*****************************************************************************
+ * Timer
+ ****************************************************************************/
+
+static void net2big_v2_timer_init(void)
+{
+ kirkwood_tclk = 166666667;
+ orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
+}
+
+struct sys_timer net2big_v2_timer = {
+ .init = net2big_v2_timer_init,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static unsigned int net2big_v2_mpp_config[] __initdata = {
+ MPP0_SPI_SCn,
+ MPP1_SPI_MOSI,
+ MPP2_SPI_SCK,
+ MPP3_SPI_MISO,
+ MPP6_SYSRST_OUTn,
+ MPP7_GPO, /* Request power-off */
+ MPP8_TW_SDA,
+ MPP9_TW_SCK,
+ MPP10_UART0_TXD,
+ MPP11_UART0_RXD,
+ MPP13_GPIO, /* Rear power switch (on|auto) */
+ MPP14_GPIO, /* USB fuse alarm */
+ MPP15_GPIO, /* Rear power switch (auto|off) */
+ MPP16_GPIO, /* SATA HDD1 power */
+ MPP17_GPIO, /* SATA HDD2 power */
+ MPP20_SATA1_ACTn,
+ MPP21_SATA0_ACTn,
+ MPP24_GPIO, /* USB mode select */
+ MPP26_GPIO, /* USB device vbus */
+ MPP28_GPIO, /* USB enable host vbus */
+ MPP29_GPIO, /* GPIO extension ALE */
+ MPP34_GPIO, /* Rear Push button */
+ MPP35_GPIO, /* Inhibit switch power-off */
+ MPP36_GPIO, /* SATA HDD1 presence */
+ MPP37_GPIO, /* SATA HDD2 presence */
+ MPP40_GPIO, /* eSATA presence */
+ MPP44_GPIO, /* GPIO extension (data 0) */
+ MPP45_GPIO, /* GPIO extension (data 1) */
+ MPP46_GPIO, /* GPIO extension (data 2) */
+ MPP47_GPIO, /* GPIO extension (addr 0) */
+ MPP48_GPIO, /* GPIO extension (addr 1) */
+ MPP49_GPIO, /* GPIO extension (addr 2) */
+ 0
+};
+
+#define NET2BIG_V2_GPIO_POWER_OFF 7
+
+static void net2big_v2_power_off(void)
+{
+ gpio_set_value(NET2BIG_V2_GPIO_POWER_OFF, 1);
+}
+
+static void __init net2big_v2_init(void)
+{
+ /*
+ * Basic setup. Needs to be called early.
+ */
+ kirkwood_init();
+ kirkwood_mpp_conf(net2big_v2_mpp_config);
+
+ net2big_v2_sata_power_init();
+
+ kirkwood_ehci_init();
+ kirkwood_ge00_init(&net2big_v2_ge00_data);
+ kirkwood_sata_init(&net2big_v2_sata_data);
+ kirkwood_uart0_init();
+ spi_register_board_info(net2big_v2_spi_slave_info,
+ ARRAY_SIZE(net2big_v2_spi_slave_info));
+ kirkwood_spi_init();
+ kirkwood_i2c_init();
+ i2c_register_board_info(0, net2big_v2_i2c_info,
+ ARRAY_SIZE(net2big_v2_i2c_info));
+
+ platform_device_register(&net2big_v2_gpio_buttons);
+
+ if (gpio_request(NET2BIG_V2_GPIO_POWER_OFF, "power-off") == 0 &&
+ gpio_direction_output(NET2BIG_V2_GPIO_POWER_OFF, 0) == 0)
+ pm_power_off = net2big_v2_power_off;
+ else
+ pr_err("net2big_v2: failed to configure power-off GPIO\n");
+}
+
+MACHINE_START(NET2BIG_V2, "LaCie 2Big Network v2")
+ .phys_io = KIRKWOOD_REGS_PHYS_BASE,
+ .io_pg_offst = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
+ .boot_params = 0x00000100,
+ .init_machine = net2big_v2_init,
+ .map_io = kirkwood_map_io,
+ .init_irq = kirkwood_init_irq,
+ .timer = &net2big_v2_timer,
+MACHINE_END
projects / deliverable / linux.git / commitdiff
