| 1 | /* |
| 2 | * Board support file for Nokia N900 (aka RX-51). |
| 3 | * |
| 4 | * Copyright (C) 2007, 2008 Nokia |
| 5 | * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg> |
| 6 | * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/err.h> |
| 18 | #include <linux/clk.h> |
| 19 | #include <linux/io.h> |
| 20 | #include <linux/gpio.h> |
| 21 | #include <linux/leds.h> |
| 22 | #include <linux/usb/phy.h> |
| 23 | #include <linux/usb/musb.h> |
| 24 | #include <linux/platform_data/spi-omap2-mcspi.h> |
| 25 | |
| 26 | #include <asm/mach-types.h> |
| 27 | #include <asm/mach/arch.h> |
| 28 | #include <asm/mach/map.h> |
| 29 | |
| 30 | #include <linux/omap-dma.h> |
| 31 | |
| 32 | #include "common.h" |
| 33 | #include "mux.h" |
| 34 | #include "gpmc.h" |
| 35 | #include "pm.h" |
| 36 | #include "soc.h" |
| 37 | #include "sdram-nokia.h" |
| 38 | #include "omap-secure.h" |
| 39 | |
| 40 | #define RX51_GPIO_SLEEP_IND 162 |
| 41 | |
| 42 | static struct gpio_led gpio_leds[] = { |
| 43 | { |
| 44 | .name = "sleep_ind", |
| 45 | .gpio = RX51_GPIO_SLEEP_IND, |
| 46 | }, |
| 47 | }; |
| 48 | |
| 49 | static struct gpio_led_platform_data gpio_led_info = { |
| 50 | .leds = gpio_leds, |
| 51 | .num_leds = ARRAY_SIZE(gpio_leds), |
| 52 | }; |
| 53 | |
| 54 | static struct platform_device leds_gpio = { |
| 55 | .name = "leds-gpio", |
| 56 | .id = -1, |
| 57 | .dev = { |
| 58 | .platform_data = &gpio_led_info, |
| 59 | }, |
| 60 | }; |
| 61 | |
| 62 | /* |
| 63 | * cpuidle C-states definition for rx51. |
| 64 | * |
| 65 | * The 'exit_latency' field is the sum of sleep |
| 66 | * and wake-up latencies. |
| 67 | |
| 68 | --------------------------------------------- |
| 69 | | state | exit_latency | target_residency | |
| 70 | --------------------------------------------- |
| 71 | | C1 | 110 + 162 | 5 | |
| 72 | | C2 | 106 + 180 | 309 | |
| 73 | | C3 | 107 + 410 | 46057 | |
| 74 | | C4 | 121 + 3374 | 46057 | |
| 75 | | C5 | 855 + 1146 | 46057 | |
| 76 | | C6 | 7580 + 4134 | 484329 | |
| 77 | | C7 | 7505 + 15274 | 484329 | |
| 78 | --------------------------------------------- |
| 79 | |
| 80 | */ |
| 81 | |
| 82 | extern void __init rx51_peripherals_init(void); |
| 83 | |
| 84 | #ifdef CONFIG_OMAP_MUX |
| 85 | static struct omap_board_mux board_mux[] __initdata = { |
| 86 | { .reg_offset = OMAP_MUX_TERMINATOR }, |
| 87 | }; |
| 88 | #endif |
| 89 | |
| 90 | static struct omap_musb_board_data musb_board_data = { |
| 91 | .interface_type = MUSB_INTERFACE_ULPI, |
| 92 | .mode = MUSB_OTG, |
| 93 | .power = 0, |
| 94 | }; |
| 95 | |
| 96 | static void __init rx51_init(void) |
| 97 | { |
| 98 | struct omap_sdrc_params *sdrc_params; |
| 99 | |
| 100 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
| 101 | omap_serial_init(); |
| 102 | |
| 103 | sdrc_params = nokia_get_sdram_timings(); |
| 104 | omap_sdrc_init(sdrc_params, sdrc_params); |
| 105 | |
| 106 | usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb"); |
| 107 | usb_musb_init(&musb_board_data); |
| 108 | rx51_peripherals_init(); |
| 109 | |
| 110 | if (omap_type() == OMAP2_DEVICE_TYPE_SEC) { |
| 111 | #ifdef CONFIG_ARM_ERRATA_430973 |
| 112 | pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); |
| 113 | /* set IBE to 1 */ |
| 114 | rx51_secure_update_aux_cr(BIT(6), 0); |
| 115 | #endif |
| 116 | } |
| 117 | |
| 118 | /* Ensure SDRC pins are mux'd for self-refresh */ |
| 119 | omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); |
| 120 | omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); |
| 121 | |
| 122 | platform_device_register(&leds_gpio); |
| 123 | } |
| 124 | |
| 125 | static void __init rx51_reserve(void) |
| 126 | { |
| 127 | omap_reserve(); |
| 128 | } |
| 129 | |
| 130 | MACHINE_START(NOKIA_RX51, "Nokia RX-51 board") |
| 131 | /* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */ |
| 132 | .atag_offset = 0x100, |
| 133 | .reserve = rx51_reserve, |
| 134 | .map_io = omap3_map_io, |
| 135 | .init_early = omap3430_init_early, |
| 136 | .init_irq = omap3_init_irq, |
| 137 | .init_machine = rx51_init, |
| 138 | .init_late = omap3430_init_late, |
| 139 | .init_time = omap_init_time, |
| 140 | .restart = omap3xxx_restart, |
| 141 | MACHINE_END |