/*
* Board support file for Nokia N900 (aka RX-51).
*
* Copyright (C) 2007, 2008 Nokia
* Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
* Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/usb/phy.h>
#include <linux/usb/musb.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <linux/omap-dma.h>
#include "common.h"
#include "mux.h"
#include "gpmc.h"
#include "pm.h"
#include "soc.h"
#include "sdram-nokia.h"
#include "omap-secure.h"
#define RX51_GPIO_SLEEP_IND 162
static struct gpio_led gpio_leds[] = {
{
.name = "sleep_ind",
.gpio = RX51_GPIO_SLEEP_IND,
},
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device leds_gpio = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_led_info,
},
};
/*
* cpuidle C-states definition for rx51.
*
* The 'exit_latency' field is the sum of sleep
* and wake-up latencies.
---------------------------------------------
| state | exit_latency | target_residency |
---------------------------------------------
| C1 | 110 + 162 | 5 |
| C2 | 106 + 180 | 309 |
| C3 | 107 + 410 | 46057 |
| C4 | 121 + 3374 | 46057 |
| C5 | 855 + 1146 | 46057 |
| C6 | 7580 + 4134 | 484329 |
| C7 | 7505 + 15274 | 484329 |
---------------------------------------------
*/
extern void __init rx51_peripherals_init(void);
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
.mode = MUSB_OTG,
.power = 0,
};
static void __init rx51_init(void)
{
struct omap_sdrc_params *sdrc_params;
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_serial_init();
sdrc_params = nokia_get_sdram_timings();
omap_sdrc_init(sdrc_params, sdrc_params);
usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
usb_musb_init(&musb_board_data);
rx51_peripherals_init();
if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
#ifdef CONFIG_ARM_ERRATA_430973
pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
/* set IBE to 1 */
rx51_secure_update_aux_cr(BIT(6), 0);
#endif
}
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
platform_device_register(&leds_gpio);
}
static void __init rx51_reserve(void)
{
omap_reserve();
}
MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
/* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */
.atag_offset = 0x100,
.reserve = rx51_reserve,
.map_io = omap3_map_io,
.init_early = omap3430_init_early,
.init_irq = omap3_init_irq,
.init_machine = rx51_init,
.init_late = omap3430_init_late,
.init_time = omap3_sync32k_timer_init,
.restart = omap3xxx_restart,
MACHINE_END
