diff options
Diffstat (limited to 'kernel/arch/arm/mach-omap2/board-rx51.c')
| -rw-r--r-- | kernel/arch/arm/mach-omap2/board-rx51.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap2/board-rx51.c b/kernel/arch/arm/mach-omap2/board-rx51.c new file mode 100644 index 000000000..2d1e5a6be --- /dev/null +++ b/kernel/arch/arm/mach-omap2/board-rx51.c @@ -0,0 +1,141 @@ +/* + * 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 |