Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-omap1/board-nokia770.c |
| 3 | * |
| 4 | * Modified from board-generic.c |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/platform_device.h> |
| 14 | #include <linux/input.h> |
| 15 | #include <linux/clk.h> |
| 16 | |
| 17 | #include <linux/spi/spi.h> |
| 18 | #include <linux/spi/ads7846.h> |
Dirk Behme | 1935061 | 2007-01-25 16:29:42 -0800 | [diff] [blame] | 19 | #include <linux/workqueue.h> |
| 20 | #include <linux/delay.h> |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 21 | |
| 22 | #include <asm/hardware.h> |
| 23 | #include <asm/mach-types.h> |
| 24 | #include <asm/mach/arch.h> |
| 25 | #include <asm/mach/map.h> |
| 26 | |
| 27 | #include <asm/arch/gpio.h> |
| 28 | #include <asm/arch/mux.h> |
| 29 | #include <asm/arch/usb.h> |
| 30 | #include <asm/arch/board.h> |
| 31 | #include <asm/arch/keypad.h> |
| 32 | #include <asm/arch/common.h> |
| 33 | #include <asm/arch/dsp_common.h> |
| 34 | #include <asm/arch/aic23.h> |
| 35 | #include <asm/arch/gpio.h> |
| 36 | |
| 37 | static void __init omap_nokia770_init_irq(void) |
| 38 | { |
| 39 | /* On Nokia 770, the SleepX signal is masked with an |
| 40 | * MPUIO line by default. It has to be unmasked for it |
| 41 | * to become functional */ |
| 42 | |
| 43 | /* SleepX mask direction */ |
| 44 | omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008); |
| 45 | /* Unmask SleepX signal */ |
| 46 | omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004); |
| 47 | |
| 48 | omap1_init_common_hw(); |
| 49 | omap_init_irq(); |
| 50 | } |
| 51 | |
| 52 | static int nokia770_keymap[] = { |
| 53 | KEY(0, 1, GROUP_0 | KEY_UP), |
| 54 | KEY(0, 2, GROUP_1 | KEY_F5), |
| 55 | KEY(1, 0, GROUP_0 | KEY_LEFT), |
| 56 | KEY(1, 1, GROUP_0 | KEY_ENTER), |
| 57 | KEY(1, 2, GROUP_0 | KEY_RIGHT), |
| 58 | KEY(2, 0, GROUP_1 | KEY_ESC), |
| 59 | KEY(2, 1, GROUP_0 | KEY_DOWN), |
| 60 | KEY(2, 2, GROUP_1 | KEY_F4), |
| 61 | KEY(3, 0, GROUP_2 | KEY_F7), |
| 62 | KEY(3, 1, GROUP_2 | KEY_F8), |
| 63 | KEY(3, 2, GROUP_2 | KEY_F6), |
| 64 | 0 |
| 65 | }; |
| 66 | |
| 67 | static struct resource nokia770_kp_resources[] = { |
| 68 | [0] = { |
| 69 | .start = INT_KEYBOARD, |
| 70 | .end = INT_KEYBOARD, |
| 71 | .flags = IORESOURCE_IRQ, |
| 72 | }, |
| 73 | }; |
| 74 | |
| 75 | static struct omap_kp_platform_data nokia770_kp_data = { |
Komal Shah | 4d24607 | 2006-09-29 01:59:20 -0700 | [diff] [blame] | 76 | .rows = 8, |
| 77 | .cols = 8, |
| 78 | .keymap = nokia770_keymap, |
David Howells | 6d5aefb | 2006-12-05 19:36:26 +0000 | [diff] [blame] | 79 | .keymapsize = ARRAY_SIZE(nokia770_keymap), |
Komal Shah | 4d24607 | 2006-09-29 01:59:20 -0700 | [diff] [blame] | 80 | .delay = 4, |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 81 | }; |
| 82 | |
| 83 | static struct platform_device nokia770_kp_device = { |
| 84 | .name = "omap-keypad", |
| 85 | .id = -1, |
| 86 | .dev = { |
| 87 | .platform_data = &nokia770_kp_data, |
| 88 | }, |
| 89 | .num_resources = ARRAY_SIZE(nokia770_kp_resources), |
| 90 | .resource = nokia770_kp_resources, |
| 91 | }; |
| 92 | |
| 93 | static struct platform_device *nokia770_devices[] __initdata = { |
| 94 | &nokia770_kp_device, |
| 95 | }; |
| 96 | |
| 97 | static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = { |
| 98 | .x_max = 0x0fff, |
| 99 | .y_max = 0x0fff, |
| 100 | .x_plate_ohms = 180, |
| 101 | .pressure_max = 255, |
| 102 | .debounce_max = 10, |
| 103 | .debounce_tol = 3, |
| 104 | }; |
| 105 | |
| 106 | static struct spi_board_info nokia770_spi_board_info[] __initdata = { |
| 107 | [0] = { |
Arnaud Patard | e016a40 | 2006-12-06 17:14:06 -0800 | [diff] [blame] | 108 | .modalias = "lcd_mipid", |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 109 | .bus_num = 2, |
| 110 | .chip_select = 3, |
| 111 | .max_speed_hz = 12000000, |
| 112 | }, |
| 113 | [1] = { |
| 114 | .modalias = "ads7846", |
| 115 | .bus_num = 2, |
| 116 | .chip_select = 0, |
| 117 | .max_speed_hz = 2500000, |
| 118 | .irq = OMAP_GPIO_IRQ(15), |
| 119 | .platform_data = &nokia770_ads7846_platform_data, |
| 120 | }, |
| 121 | }; |
| 122 | |
| 123 | |
| 124 | /* assume no Mini-AB port */ |
| 125 | |
| 126 | static struct omap_usb_config nokia770_usb_config __initdata = { |
| 127 | .otg = 1, |
| 128 | .register_host = 1, |
| 129 | .register_dev = 1, |
| 130 | .hmc_mode = 16, |
| 131 | .pins[0] = 6, |
| 132 | }; |
| 133 | |
| 134 | static struct omap_mmc_config nokia770_mmc_config __initdata = { |
| 135 | .mmc[0] = { |
| 136 | .enabled = 0, |
| 137 | .wire4 = 0, |
| 138 | .wp_pin = -1, |
| 139 | .power_pin = -1, |
| 140 | .switch_pin = -1, |
| 141 | }, |
| 142 | .mmc[1] = { |
| 143 | .enabled = 0, |
| 144 | .wire4 = 0, |
| 145 | .wp_pin = -1, |
| 146 | .power_pin = -1, |
| 147 | .switch_pin = -1, |
| 148 | }, |
| 149 | }; |
| 150 | |
| 151 | static struct omap_board_config_kernel nokia770_config[] = { |
| 152 | { OMAP_TAG_USB, NULL }, |
| 153 | { OMAP_TAG_MMC, &nokia770_mmc_config }, |
| 154 | }; |
| 155 | |
| 156 | /* |
| 157 | * audio power control |
| 158 | */ |
| 159 | #define HEADPHONE_GPIO 14 |
| 160 | #define AMPLIFIER_CTRL_GPIO 58 |
| 161 | |
| 162 | static struct clk *dspxor_ck; |
| 163 | static DECLARE_MUTEX(audio_pwr_sem); |
| 164 | /* |
| 165 | * audio_pwr_state |
| 166 | * +--+-------------------------+---------------------------------------+ |
| 167 | * |-1|down |power-up request -> 0 | |
| 168 | * +--+-------------------------+---------------------------------------+ |
| 169 | * | 0|up |power-down(1) request -> 1 | |
| 170 | * | | |power-down(2) request -> (ignore) | |
| 171 | * +--+-------------------------+---------------------------------------+ |
| 172 | * | 1|up, |power-up request -> 0 | |
| 173 | * | |received down(1) request |power-down(2) request -> -1 | |
| 174 | * +--+-------------------------+---------------------------------------+ |
| 175 | */ |
| 176 | static int audio_pwr_state = -1; |
| 177 | |
| 178 | /* |
| 179 | * audio_pwr_up / down should be called under audio_pwr_sem |
| 180 | */ |
| 181 | static void nokia770_audio_pwr_up(void) |
| 182 | { |
| 183 | clk_enable(dspxor_ck); |
| 184 | |
| 185 | /* Turn on codec */ |
| 186 | tlv320aic23_power_up(); |
| 187 | |
| 188 | if (omap_get_gpio_datain(HEADPHONE_GPIO)) |
| 189 | /* HP not connected, turn on amplifier */ |
| 190 | omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1); |
| 191 | else |
| 192 | /* HP connected, do not turn on amplifier */ |
| 193 | printk("HP connected\n"); |
| 194 | } |
| 195 | |
David Howells | 6d5aefb | 2006-12-05 19:36:26 +0000 | [diff] [blame] | 196 | static void codec_delayed_power_down(struct work_struct *work) |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 197 | { |
| 198 | down(&audio_pwr_sem); |
| 199 | if (audio_pwr_state == -1) |
| 200 | tlv320aic23_power_down(); |
| 201 | clk_disable(dspxor_ck); |
| 202 | up(&audio_pwr_sem); |
| 203 | } |
| 204 | |
David Howells | 6d5aefb | 2006-12-05 19:36:26 +0000 | [diff] [blame] | 205 | static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down); |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 206 | |
| 207 | static void nokia770_audio_pwr_down(void) |
| 208 | { |
| 209 | /* Turn off amplifier */ |
| 210 | omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0); |
| 211 | |
| 212 | /* Turn off codec: schedule delayed work */ |
| 213 | schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */ |
| 214 | } |
| 215 | |
| 216 | void nokia770_audio_pwr_up_request(int stage) |
| 217 | { |
| 218 | down(&audio_pwr_sem); |
| 219 | if (audio_pwr_state == -1) |
| 220 | nokia770_audio_pwr_up(); |
| 221 | /* force audio_pwr_state = 0, even if it was 1. */ |
| 222 | audio_pwr_state = 0; |
| 223 | up(&audio_pwr_sem); |
| 224 | } |
| 225 | |
| 226 | void nokia770_audio_pwr_down_request(int stage) |
| 227 | { |
| 228 | down(&audio_pwr_sem); |
| 229 | switch (stage) { |
| 230 | case 1: |
| 231 | if (audio_pwr_state == 0) |
| 232 | audio_pwr_state = 1; |
| 233 | break; |
| 234 | case 2: |
| 235 | if (audio_pwr_state == 1) { |
| 236 | nokia770_audio_pwr_down(); |
| 237 | audio_pwr_state = -1; |
| 238 | } |
| 239 | break; |
| 240 | } |
| 241 | up(&audio_pwr_sem); |
| 242 | } |
| 243 | |
| 244 | static void __init omap_nokia770_init(void) |
| 245 | { |
| 246 | nokia770_config[0].data = &nokia770_usb_config; |
| 247 | |
| 248 | platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices)); |
| 249 | spi_register_board_info(nokia770_spi_board_info, |
| 250 | ARRAY_SIZE(nokia770_spi_board_info)); |
| 251 | omap_board_config = nokia770_config; |
| 252 | omap_board_config_size = ARRAY_SIZE(nokia770_config); |
| 253 | omap_serial_init(); |
| 254 | omap_dsp_audio_pwr_up_request = nokia770_audio_pwr_up_request; |
| 255 | omap_dsp_audio_pwr_down_request = nokia770_audio_pwr_down_request; |
| 256 | dspxor_ck = clk_get(0, "dspxor_ck"); |
| 257 | } |
| 258 | |
| 259 | static void __init omap_nokia770_map_io(void) |
| 260 | { |
| 261 | omap1_map_common_io(); |
| 262 | } |
| 263 | |
| 264 | MACHINE_START(NOKIA770, "Nokia 770") |
| 265 | .phys_io = 0xfff00000, |
| 266 | .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, |
| 267 | .boot_params = 0x10000100, |
| 268 | .map_io = omap_nokia770_map_io, |
| 269 | .init_irq = omap_nokia770_init_irq, |
| 270 | .init_machine = omap_nokia770_init, |
| 271 | .timer = &omap_timer, |
| 272 | MACHINE_END |