Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Author: Fabio Estevam <fabio.estevam@freescale.com> |
| 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 as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 15 | */ |
| 16 | |
Uwe Kleine-König | 8fdca37 | 2010-03-08 10:46:11 +0100 | [diff] [blame] | 17 | /* |
| 18 | * This machine is known as: |
| 19 | * - i.MX27 3-Stack Development System |
| 20 | * - i.MX27 Platform Development Kit (i.MX27 PDK) |
| 21 | */ |
| 22 | |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 23 | #include <linux/platform_device.h> |
| 24 | #include <linux/gpio.h> |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 25 | #include <linux/irq.h> |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 26 | #include <linux/usb/otg.h> |
| 27 | #include <linux/usb/ulpi.h> |
| 28 | #include <linux/delay.h> |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 29 | #include <linux/mfd/mc13783.h> |
| 30 | #include <linux/spi/spi.h> |
| 31 | #include <linux/regulator/machine.h> |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 32 | |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 33 | #include <asm/mach-types.h> |
| 34 | #include <asm/mach/arch.h> |
| 35 | #include <asm/mach/time.h> |
| 36 | #include <mach/hardware.h> |
| 37 | #include <mach/common.h> |
Uwe Kleine-König | e835d88 | 2010-02-16 11:07:49 +0100 | [diff] [blame] | 38 | #include <mach/iomux-mx27.h> |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 39 | #include <mach/ulpi.h> |
Fabio Estevam | 92cb33f | 2011-01-10 18:17:37 -0200 | [diff] [blame] | 40 | #include <mach/irqs.h> |
| 41 | #include <mach/3ds_debugboard.h> |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 42 | |
Uwe Kleine-König | d5dac4a | 2010-06-23 09:36:01 +0200 | [diff] [blame] | 43 | #include "devices-imx27.h" |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 44 | |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 45 | #define SD1_EN_GPIO (GPIO_PORTB + 25) |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 46 | #define OTG_PHY_RESET_GPIO (GPIO_PORTB + 23) |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 47 | #define SPI2_SS0 (GPIO_PORTD + 21) |
Fabio Estevam | 92cb33f | 2011-01-10 18:17:37 -0200 | [diff] [blame] | 48 | #define EXPIO_PARENT_INT (MXC_INTERNAL_IRQS + GPIO_PORTC + 28) |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 49 | |
Uwe Kleine-König | 6c80ee5 | 2010-09-28 21:53:31 +0200 | [diff] [blame] | 50 | static const int mx27pdk_pins[] __initconst = { |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 51 | /* UART1 */ |
| 52 | PE12_PF_UART1_TXD, |
| 53 | PE13_PF_UART1_RXD, |
| 54 | PE14_PF_UART1_CTS, |
| 55 | PE15_PF_UART1_RTS, |
| 56 | /* FEC */ |
| 57 | PD0_AIN_FEC_TXD0, |
| 58 | PD1_AIN_FEC_TXD1, |
| 59 | PD2_AIN_FEC_TXD2, |
| 60 | PD3_AIN_FEC_TXD3, |
| 61 | PD4_AOUT_FEC_RX_ER, |
| 62 | PD5_AOUT_FEC_RXD1, |
| 63 | PD6_AOUT_FEC_RXD2, |
| 64 | PD7_AOUT_FEC_RXD3, |
| 65 | PD8_AF_FEC_MDIO, |
| 66 | PD9_AIN_FEC_MDC, |
| 67 | PD10_AOUT_FEC_CRS, |
| 68 | PD11_AOUT_FEC_TX_CLK, |
| 69 | PD12_AOUT_FEC_RXD0, |
| 70 | PD13_AOUT_FEC_RX_DV, |
| 71 | PD14_AOUT_FEC_RX_CLK, |
| 72 | PD15_AOUT_FEC_COL, |
| 73 | PD16_AIN_FEC_TX_ER, |
| 74 | PF23_AIN_FEC_TX_EN, |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 75 | /* SDHC1 */ |
| 76 | PE18_PF_SD1_D0, |
| 77 | PE19_PF_SD1_D1, |
| 78 | PE20_PF_SD1_D2, |
| 79 | PE21_PF_SD1_D3, |
| 80 | PE22_PF_SD1_CMD, |
| 81 | PE23_PF_SD1_CLK, |
| 82 | SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT, |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 83 | /* OTG */ |
| 84 | OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT, |
| 85 | PC7_PF_USBOTG_DATA5, |
| 86 | PC8_PF_USBOTG_DATA6, |
| 87 | PC9_PF_USBOTG_DATA0, |
| 88 | PC10_PF_USBOTG_DATA2, |
| 89 | PC11_PF_USBOTG_DATA1, |
| 90 | PC12_PF_USBOTG_DATA4, |
| 91 | PC13_PF_USBOTG_DATA3, |
| 92 | PE0_PF_USBOTG_NXT, |
| 93 | PE1_PF_USBOTG_STP, |
| 94 | PE2_PF_USBOTG_DIR, |
| 95 | PE24_PF_USBOTG_CLK, |
| 96 | PE25_PF_USBOTG_DATA7, |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 97 | /* CSPI2 */ |
| 98 | PD22_PF_CSPI2_SCLK, |
| 99 | PD23_PF_CSPI2_MISO, |
| 100 | PD24_PF_CSPI2_MOSI, |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 101 | }; |
| 102 | |
Uwe Kleine-König | d5dac4a | 2010-06-23 09:36:01 +0200 | [diff] [blame] | 103 | static const struct imxuart_platform_data uart_pdata __initconst = { |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 104 | .flags = IMXUART_HAVE_RTSCTS, |
| 105 | }; |
| 106 | |
Rogerio Pimentel | 3fac6cf | 2010-06-25 10:31:33 -0300 | [diff] [blame] | 107 | /* |
| 108 | * Matrix keyboard |
| 109 | */ |
| 110 | |
| 111 | static const uint32_t mx27_3ds_keymap[] = { |
| 112 | KEY(0, 0, KEY_UP), |
| 113 | KEY(0, 1, KEY_DOWN), |
| 114 | KEY(1, 0, KEY_RIGHT), |
| 115 | KEY(1, 1, KEY_LEFT), |
| 116 | KEY(1, 2, KEY_ENTER), |
| 117 | KEY(2, 0, KEY_F6), |
| 118 | KEY(2, 1, KEY_F8), |
| 119 | KEY(2, 2, KEY_F9), |
| 120 | KEY(2, 3, KEY_F10), |
| 121 | }; |
| 122 | |
Uwe Kleine-König | 3f88014 | 2010-11-10 09:58:56 +0100 | [diff] [blame] | 123 | static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = { |
Rogerio Pimentel | 3fac6cf | 2010-06-25 10:31:33 -0300 | [diff] [blame] | 124 | .keymap = mx27_3ds_keymap, |
| 125 | .keymap_size = ARRAY_SIZE(mx27_3ds_keymap), |
| 126 | }; |
| 127 | |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 128 | static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq, |
| 129 | void *data) |
| 130 | { |
| 131 | return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING | |
| 132 | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data); |
| 133 | } |
| 134 | |
| 135 | static void mx27_3ds_sdhc1_exit(struct device *dev, void *data) |
| 136 | { |
| 137 | free_irq(IRQ_GPIOB(26), data); |
| 138 | } |
| 139 | |
Uwe Kleine-König | 9d3d945 | 2010-11-05 17:26:09 +0100 | [diff] [blame] | 140 | static const struct imxmmc_platform_data sdhc1_pdata __initconst = { |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 141 | .init = mx27_3ds_sdhc1_init, |
| 142 | .exit = mx27_3ds_sdhc1_exit, |
| 143 | }; |
| 144 | |
| 145 | static void mx27_3ds_sdhc1_enable_level_translator(void) |
| 146 | { |
| 147 | /* Turn on TXB0108 OE pin */ |
| 148 | gpio_request(SD1_EN_GPIO, "sd1_enable"); |
| 149 | gpio_direction_output(SD1_EN_GPIO, 1); |
| 150 | } |
| 151 | |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 152 | |
| 153 | static int otg_phy_init(void) |
| 154 | { |
| 155 | gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset"); |
| 156 | gpio_direction_output(OTG_PHY_RESET_GPIO, 0); |
| 157 | mdelay(1); |
| 158 | gpio_set_value(OTG_PHY_RESET_GPIO, 1); |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | #if defined(CONFIG_USB_ULPI) |
| 163 | |
| 164 | static struct mxc_usbh_platform_data otg_pdata __initdata = { |
| 165 | .portsc = MXC_EHCI_MODE_ULPI, |
| 166 | .flags = MXC_EHCI_INTERFACE_DIFF_UNI, |
| 167 | }; |
| 168 | #endif |
| 169 | |
| 170 | static const struct fsl_usb2_platform_data otg_device_pdata __initconst = { |
| 171 | .operating_mode = FSL_USB2_DR_DEVICE, |
| 172 | .phy_mode = FSL_USB2_PHY_ULPI, |
| 173 | }; |
| 174 | |
| 175 | static int otg_mode_host; |
| 176 | |
| 177 | static int __init mx27_3ds_otg_mode(char *options) |
| 178 | { |
| 179 | if (!strcmp(options, "host")) |
| 180 | otg_mode_host = 1; |
| 181 | else if (!strcmp(options, "device")) |
| 182 | otg_mode_host = 0; |
| 183 | else |
| 184 | pr_info("otg_mode neither \"host\" nor \"device\". " |
| 185 | "Defaulting to device\n"); |
| 186 | return 0; |
| 187 | } |
| 188 | __setup("otg_mode=", mx27_3ds_otg_mode); |
| 189 | |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 190 | /* Regulators */ |
| 191 | static struct regulator_consumer_supply vmmc1_consumers[] = { |
| 192 | REGULATOR_SUPPLY("lcd_2v8", NULL), |
| 193 | }; |
| 194 | |
| 195 | static struct regulator_init_data vmmc1_init = { |
| 196 | .constraints = { |
| 197 | .min_uV = 2800000, |
| 198 | .max_uV = 2800000, |
| 199 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, |
| 200 | }, |
| 201 | .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers), |
| 202 | .consumer_supplies = vmmc1_consumers, |
| 203 | }; |
| 204 | |
| 205 | static struct regulator_consumer_supply vgen_consumers[] = { |
| 206 | REGULATOR_SUPPLY("vdd_lcdio", NULL), |
| 207 | }; |
| 208 | |
| 209 | static struct regulator_init_data vgen_init = { |
| 210 | .constraints = { |
| 211 | .min_uV = 1800000, |
| 212 | .max_uV = 1800000, |
| 213 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, |
| 214 | }, |
| 215 | .num_consumer_supplies = ARRAY_SIZE(vgen_consumers), |
| 216 | .consumer_supplies = vgen_consumers, |
| 217 | }; |
| 218 | |
| 219 | static struct mc13783_regulator_init_data mx27_3ds_regulators[] = { |
| 220 | { |
Sascha Hauer | 074cee9 | 2011-01-07 17:07:22 +0100 | [diff] [blame] | 221 | .id = MC13783_REG_VMMC1, |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 222 | .init_data = &vmmc1_init, |
| 223 | }, { |
Sascha Hauer | 074cee9 | 2011-01-07 17:07:22 +0100 | [diff] [blame] | 224 | .id = MC13783_REG_VGEN, |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 225 | .init_data = &vgen_init, |
| 226 | }, |
| 227 | }; |
| 228 | |
| 229 | /* MC13783 */ |
| 230 | static struct mc13783_platform_data mc13783_pdata __initdata = { |
| 231 | .regulators = mx27_3ds_regulators, |
| 232 | .num_regulators = ARRAY_SIZE(mx27_3ds_regulators), |
| 233 | .flags = MC13783_USE_REGULATOR, |
| 234 | }; |
| 235 | |
| 236 | /* SPI */ |
| 237 | static int spi2_internal_chipselect[] = {SPI2_SS0}; |
| 238 | |
| 239 | static const struct spi_imx_master spi2_pdata __initconst = { |
| 240 | .chipselect = spi2_internal_chipselect, |
| 241 | .num_chipselect = ARRAY_SIZE(spi2_internal_chipselect), |
| 242 | }; |
| 243 | |
| 244 | static struct spi_board_info mx27_3ds_spi_devs[] __initdata = { |
| 245 | { |
| 246 | .modalias = "mc13783", |
| 247 | .max_speed_hz = 1000000, |
| 248 | .bus_num = 1, |
| 249 | .chip_select = 0, /* SS0 */ |
| 250 | .platform_data = &mc13783_pdata, |
| 251 | .irq = IRQ_GPIOC(14), |
| 252 | .mode = SPI_CS_HIGH, |
| 253 | }, |
| 254 | }; |
| 255 | |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 256 | |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 257 | static void __init mx27pdk_init(void) |
| 258 | { |
| 259 | mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), |
| 260 | "mx27pdk"); |
Rogerio Pimentel | b5ec73e | 2010-10-22 11:03:54 -0200 | [diff] [blame] | 261 | mx27_3ds_sdhc1_enable_level_translator(); |
Uwe Kleine-König | d5dac4a | 2010-06-23 09:36:01 +0200 | [diff] [blame] | 262 | imx27_add_imx_uart0(&uart_pdata); |
Uwe Kleine-König | 6bd96f3 | 2010-10-06 12:00:18 +0200 | [diff] [blame] | 263 | imx27_add_fec(NULL); |
Uwe Kleine-König | 3f88014 | 2010-11-10 09:58:56 +0100 | [diff] [blame] | 264 | imx27_add_imx_keypad(&mx27_3ds_keymap_data); |
Uwe Kleine-König | 9d3d945 | 2010-11-05 17:26:09 +0100 | [diff] [blame] | 265 | imx27_add_mxc_mmc(0, &sdhc1_pdata); |
Fabio Estevam | 8be9252 | 2010-12-07 17:14:45 -0200 | [diff] [blame] | 266 | imx27_add_imx2_wdt(NULL); |
Fabio Estevam | 96cf423 | 2010-12-22 12:25:31 -0200 | [diff] [blame] | 267 | otg_phy_init(); |
| 268 | #if defined(CONFIG_USB_ULPI) |
| 269 | if (otg_mode_host) { |
| 270 | otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, |
| 271 | ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); |
| 272 | |
| 273 | imx27_add_mxc_ehci_otg(&otg_pdata); |
| 274 | } |
| 275 | #endif |
| 276 | if (!otg_mode_host) |
| 277 | imx27_add_fsl_usb2_udc(&otg_device_pdata); |
| 278 | |
Fabio Estevam | c67a3e0 | 2011-01-03 11:16:39 -0200 | [diff] [blame] | 279 | imx27_add_spi_imx1(&spi2_pdata); |
| 280 | spi_register_board_info(mx27_3ds_spi_devs, |
| 281 | ARRAY_SIZE(mx27_3ds_spi_devs)); |
Fabio Estevam | 92cb33f | 2011-01-10 18:17:37 -0200 | [diff] [blame] | 282 | |
| 283 | if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT)) |
| 284 | pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n"); |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | static void __init mx27pdk_timer_init(void) |
| 288 | { |
| 289 | mx27_clocks_init(26000000); |
| 290 | } |
| 291 | |
| 292 | static struct sys_timer mx27pdk_timer = { |
| 293 | .init = mx27pdk_timer_init, |
| 294 | }; |
| 295 | |
| 296 | MACHINE_START(MX27_3DS, "Freescale MX27PDK") |
| 297 | /* maintainer: Freescale Semiconductor, Inc. */ |
Uwe Kleine-König | 3410123 | 2010-01-29 17:36:05 +0100 | [diff] [blame] | 298 | .boot_params = MX27_PHYS_OFFSET + 0x100, |
Simon POLETTE | add85a4 | 2009-06-04 12:09:01 +0200 | [diff] [blame] | 299 | .map_io = mx27_map_io, |
Sascha Hauer | c5aa0ad | 2009-05-25 17:36:19 +0200 | [diff] [blame] | 300 | .init_irq = mx27_init_irq, |
Fabio Estevam | ec9be0d | 2009-04-16 12:45:01 -0700 | [diff] [blame] | 301 | .init_machine = mx27pdk_init, |
| 302 | .timer = &mx27pdk_timer, |
| 303 | MACHINE_END |