Grazvydas Ignotas | da17724 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 1 | /* |
| 2 | * board-omap3pandora.c (Pandora Handheld Console) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 16 | * 02110-1301 USA |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/platform_device.h> |
| 23 | |
| 24 | #include <linux/spi/spi.h> |
| 25 | #include <linux/spi/ads7846.h> |
| 26 | #include <linux/i2c/twl4030.h> |
| 27 | |
| 28 | #include <asm/mach-types.h> |
| 29 | #include <asm/mach/arch.h> |
| 30 | #include <asm/mach/map.h> |
| 31 | |
| 32 | #include <mach/board.h> |
| 33 | #include <mach/common.h> |
| 34 | #include <mach/gpio.h> |
| 35 | #include <mach/hardware.h> |
| 36 | #include <mach/mcspi.h> |
| 37 | |
Tony Lindgren | 90c62bf | 2008-12-10 17:37:17 -0800 | [diff] [blame] | 38 | #include "mmc-twl4030.h" |
| 39 | |
Grazvydas Ignotas | da17724 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 40 | #define OMAP3_PANDORA_TS_GPIO 94 |
| 41 | |
Tony Lindgren | 90c62bf | 2008-12-10 17:37:17 -0800 | [diff] [blame] | 42 | static struct twl4030_hsmmc_info omap3pandora_mmc[] = { |
| 43 | { |
| 44 | .mmc = 1, |
| 45 | .wires = 4, |
| 46 | .gpio_cd = -EINVAL, |
| 47 | .gpio_wp = 126, |
| 48 | .ext_clock = 0, |
| 49 | }, |
| 50 | { |
| 51 | .mmc = 2, |
| 52 | .wires = 4, |
| 53 | .gpio_cd = -EINVAL, |
| 54 | .gpio_wp = 127, |
| 55 | .ext_clock = 1, |
David Brownell | 0329c37 | 2009-03-23 18:23:47 -0700 | [diff] [blame] | 56 | .transceiver = true, |
Tony Lindgren | 90c62bf | 2008-12-10 17:37:17 -0800 | [diff] [blame] | 57 | }, |
Grazvydas Ignotas | 07d83cc | 2009-03-23 18:23:47 -0700 | [diff] [blame^] | 58 | { |
| 59 | .mmc = 3, |
| 60 | .wires = 4, |
| 61 | .gpio_cd = -EINVAL, |
| 62 | .gpio_wp = -EINVAL, |
| 63 | }, |
Tony Lindgren | 90c62bf | 2008-12-10 17:37:17 -0800 | [diff] [blame] | 64 | {} /* Terminator */ |
| 65 | }; |
| 66 | |
Grazvydas Ignotas | da17724 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 67 | static struct omap_uart_config omap3pandora_uart_config __initdata = { |
| 68 | .enabled_uarts = (1 << 2), /* UART3 */ |
| 69 | }; |
| 70 | |
Tony Lindgren | 90c62bf | 2008-12-10 17:37:17 -0800 | [diff] [blame] | 71 | static int omap3pandora_twl_gpio_setup(struct device *dev, |
| 72 | unsigned gpio, unsigned ngpio) |
| 73 | { |
| 74 | /* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */ |
| 75 | omap3pandora_mmc[0].gpio_cd = gpio + 0; |
| 76 | omap3pandora_mmc[1].gpio_cd = gpio + 1; |
| 77 | twl4030_mmc_init(omap3pandora_mmc); |
| 78 | |
| 79 | return 0; |
| 80 | } |
| 81 | |
Grazvydas Ignotas | da17724 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 82 | static struct twl4030_gpio_platform_data omap3pandora_gpio_data = { |
| 83 | .gpio_base = OMAP_MAX_GPIO_LINES, |
| 84 | .irq_base = TWL4030_GPIO_IRQ_BASE, |
| 85 | .irq_end = TWL4030_GPIO_IRQ_END, |
Tony Lindgren | 90c62bf | 2008-12-10 17:37:17 -0800 | [diff] [blame] | 86 | .setup = omap3pandora_twl_gpio_setup, |
Grazvydas Ignotas | da17724 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 87 | }; |
| 88 | |
| 89 | static struct twl4030_usb_data omap3pandora_usb_data = { |
| 90 | .usb_mode = T2_USB_MODE_ULPI, |
| 91 | }; |
| 92 | |
| 93 | static struct twl4030_platform_data omap3pandora_twldata = { |
| 94 | .irq_base = TWL4030_IRQ_BASE, |
| 95 | .irq_end = TWL4030_IRQ_END, |
| 96 | .gpio = &omap3pandora_gpio_data, |
| 97 | .usb = &omap3pandora_usb_data, |
| 98 | }; |
| 99 | |
| 100 | static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = { |
| 101 | { |
| 102 | I2C_BOARD_INFO("tps65950", 0x48), |
| 103 | .flags = I2C_CLIENT_WAKE, |
| 104 | .irq = INT_34XX_SYS_NIRQ, |
| 105 | .platform_data = &omap3pandora_twldata, |
| 106 | }, |
| 107 | }; |
| 108 | |
| 109 | static int __init omap3pandora_i2c_init(void) |
| 110 | { |
| 111 | omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo, |
| 112 | ARRAY_SIZE(omap3pandora_i2c_boardinfo)); |
| 113 | /* i2c2 pins are not connected */ |
| 114 | omap_register_i2c_bus(3, 400, NULL, 0); |
| 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | static void __init omap3pandora_init_irq(void) |
| 119 | { |
| 120 | omap2_init_common_hw(); |
| 121 | omap_init_irq(); |
| 122 | omap_gpio_init(); |
| 123 | } |
| 124 | |
| 125 | static void __init omap3pandora_ads7846_init(void) |
| 126 | { |
| 127 | int gpio = OMAP3_PANDORA_TS_GPIO; |
| 128 | int ret; |
| 129 | |
| 130 | ret = gpio_request(gpio, "ads7846_pen_down"); |
| 131 | if (ret < 0) { |
| 132 | printk(KERN_ERR "Failed to request GPIO %d for " |
| 133 | "ads7846 pen down IRQ\n", gpio); |
| 134 | return; |
| 135 | } |
| 136 | |
| 137 | gpio_direction_input(gpio); |
| 138 | } |
| 139 | |
| 140 | static int ads7846_get_pendown_state(void) |
| 141 | { |
| 142 | return !gpio_get_value(OMAP3_PANDORA_TS_GPIO); |
| 143 | } |
| 144 | |
| 145 | static struct ads7846_platform_data ads7846_config = { |
| 146 | .x_max = 0x0fff, |
| 147 | .y_max = 0x0fff, |
| 148 | .x_plate_ohms = 180, |
| 149 | .pressure_max = 255, |
| 150 | .debounce_max = 10, |
| 151 | .debounce_tol = 3, |
| 152 | .debounce_rep = 1, |
| 153 | .get_pendown_state = ads7846_get_pendown_state, |
| 154 | .keep_vref_on = 1, |
| 155 | }; |
| 156 | |
| 157 | static struct omap2_mcspi_device_config ads7846_mcspi_config = { |
| 158 | .turbo_mode = 0, |
| 159 | .single_channel = 1, /* 0: slave, 1: master */ |
| 160 | }; |
| 161 | |
| 162 | static struct spi_board_info omap3pandora_spi_board_info[] __initdata = { |
| 163 | { |
| 164 | .modalias = "ads7846", |
| 165 | .bus_num = 1, |
| 166 | .chip_select = 0, |
| 167 | .max_speed_hz = 1500000, |
| 168 | .controller_data = &ads7846_mcspi_config, |
| 169 | .irq = OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO), |
| 170 | .platform_data = &ads7846_config, |
| 171 | } |
| 172 | }; |
| 173 | |
| 174 | static struct platform_device omap3pandora_lcd_device = { |
| 175 | .name = "pandora_lcd", |
| 176 | .id = -1, |
| 177 | }; |
| 178 | |
| 179 | static struct omap_lcd_config omap3pandora_lcd_config __initdata = { |
| 180 | .ctrl_name = "internal", |
| 181 | }; |
| 182 | |
| 183 | static struct omap_board_config_kernel omap3pandora_config[] __initdata = { |
| 184 | { OMAP_TAG_UART, &omap3pandora_uart_config }, |
| 185 | { OMAP_TAG_LCD, &omap3pandora_lcd_config }, |
| 186 | }; |
| 187 | |
| 188 | static struct platform_device *omap3pandora_devices[] __initdata = { |
| 189 | &omap3pandora_lcd_device, |
| 190 | }; |
| 191 | |
| 192 | static void __init omap3pandora_init(void) |
| 193 | { |
| 194 | omap3pandora_i2c_init(); |
| 195 | platform_add_devices(omap3pandora_devices, |
| 196 | ARRAY_SIZE(omap3pandora_devices)); |
| 197 | omap_board_config = omap3pandora_config; |
| 198 | omap_board_config_size = ARRAY_SIZE(omap3pandora_config); |
| 199 | omap_serial_init(); |
| 200 | spi_register_board_info(omap3pandora_spi_board_info, |
| 201 | ARRAY_SIZE(omap3pandora_spi_board_info)); |
| 202 | omap3pandora_ads7846_init(); |
| 203 | } |
| 204 | |
| 205 | static void __init omap3pandora_map_io(void) |
| 206 | { |
| 207 | omap2_set_globals_343x(); |
| 208 | omap2_map_common_io(); |
| 209 | } |
| 210 | |
| 211 | MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console") |
| 212 | .phys_io = 0x48000000, |
| 213 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, |
| 214 | .boot_params = 0x80000100, |
| 215 | .map_io = omap3pandora_map_io, |
| 216 | .init_irq = omap3pandora_init_irq, |
| 217 | .init_machine = omap3pandora_init, |
| 218 | .timer = &omap_timer, |
| 219 | MACHINE_END |