Stefano Babic | ea42a0d | 2011-09-07 08:45:31 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 |
| 3 | * Stefano Babic, DENX Software Engineering, <sbabic@denx.de> |
| 4 | * |
| 5 | * based on: mach-mx28_evk.c |
| 6 | * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved. |
| 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 as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | */ |
| 18 | |
| 19 | #include <linux/delay.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/gpio.h> |
| 22 | #include <linux/leds.h> |
| 23 | #include <linux/irq.h> |
| 24 | #include <linux/clk.h> |
| 25 | #include <linux/i2c.h> |
| 26 | #include <linux/i2c/at24.h> |
| 27 | |
| 28 | #include <asm/mach-types.h> |
| 29 | #include <asm/mach/arch.h> |
| 30 | #include <asm/mach/time.h> |
| 31 | |
| 32 | #include <mach/common.h> |
| 33 | #include <mach/iomux-mx28.h> |
| 34 | |
| 35 | #include "devices-mx28.h" |
| 36 | |
| 37 | #define M28EVK_GPIO_USERLED1 MXS_GPIO_NR(3, 16) |
| 38 | #define M28EVK_GPIO_USERLED2 MXS_GPIO_NR(3, 17) |
| 39 | |
| 40 | #define MX28EVK_BL_ENABLE MXS_GPIO_NR(3, 18) |
| 41 | #define M28EVK_LCD_ENABLE MXS_GPIO_NR(3, 28) |
| 42 | |
| 43 | #define MX28EVK_MMC0_WRITE_PROTECT MXS_GPIO_NR(2, 12) |
| 44 | #define MX28EVK_MMC1_WRITE_PROTECT MXS_GPIO_NR(0, 28) |
| 45 | |
| 46 | static const iomux_cfg_t m28evk_pads[] __initconst = { |
| 47 | /* duart */ |
| 48 | MX28_PAD_AUART0_CTS__DUART_RX | MXS_PAD_CTRL, |
| 49 | MX28_PAD_AUART0_RTS__DUART_TX | MXS_PAD_CTRL, |
| 50 | |
| 51 | /* auart0 */ |
| 52 | MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL, |
| 53 | MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL, |
| 54 | |
| 55 | /* auart3 */ |
| 56 | MX28_PAD_AUART3_RX__AUART3_RX | MXS_PAD_CTRL, |
| 57 | MX28_PAD_AUART3_TX__AUART3_TX | MXS_PAD_CTRL, |
| 58 | MX28_PAD_AUART3_CTS__AUART3_CTS | MXS_PAD_CTRL, |
| 59 | MX28_PAD_AUART3_RTS__AUART3_RTS | MXS_PAD_CTRL, |
| 60 | |
| 61 | #define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP) |
| 62 | /* fec0 */ |
| 63 | MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC, |
| 64 | MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC, |
| 65 | MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC, |
| 66 | MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC, |
| 67 | MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC, |
| 68 | MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC, |
| 69 | MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC, |
| 70 | MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC, |
| 71 | MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC, |
| 72 | /* fec1 */ |
| 73 | MX28_PAD_ENET0_CRS__ENET1_RX_EN | MXS_PAD_FEC, |
| 74 | MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MXS_PAD_FEC, |
| 75 | MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MXS_PAD_FEC, |
| 76 | MX28_PAD_ENET0_COL__ENET1_TX_EN | MXS_PAD_FEC, |
| 77 | MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MXS_PAD_FEC, |
| 78 | MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MXS_PAD_FEC, |
| 79 | |
| 80 | /* flexcan0 */ |
| 81 | MX28_PAD_GPMI_RDY2__CAN0_TX, |
| 82 | MX28_PAD_GPMI_RDY3__CAN0_RX, |
| 83 | |
| 84 | /* flexcan1 */ |
| 85 | MX28_PAD_GPMI_CE2N__CAN1_TX, |
| 86 | MX28_PAD_GPMI_CE3N__CAN1_RX, |
| 87 | |
| 88 | /* I2C */ |
| 89 | MX28_PAD_I2C0_SCL__I2C0_SCL, |
| 90 | MX28_PAD_I2C0_SDA__I2C0_SDA, |
| 91 | |
| 92 | /* mxsfb (lcdif) */ |
| 93 | MX28_PAD_LCD_D00__LCD_D0 | MXS_PAD_CTRL, |
| 94 | MX28_PAD_LCD_D01__LCD_D1 | MXS_PAD_CTRL, |
| 95 | MX28_PAD_LCD_D02__LCD_D2 | MXS_PAD_CTRL, |
| 96 | MX28_PAD_LCD_D03__LCD_D3 | MXS_PAD_CTRL, |
| 97 | MX28_PAD_LCD_D04__LCD_D4 | MXS_PAD_CTRL, |
| 98 | MX28_PAD_LCD_D05__LCD_D5 | MXS_PAD_CTRL, |
| 99 | MX28_PAD_LCD_D06__LCD_D6 | MXS_PAD_CTRL, |
| 100 | MX28_PAD_LCD_D07__LCD_D7 | MXS_PAD_CTRL, |
| 101 | MX28_PAD_LCD_D08__LCD_D8 | MXS_PAD_CTRL, |
| 102 | MX28_PAD_LCD_D09__LCD_D9 | MXS_PAD_CTRL, |
| 103 | MX28_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL, |
| 104 | MX28_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL, |
| 105 | MX28_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL, |
| 106 | MX28_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL, |
| 107 | MX28_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL, |
| 108 | MX28_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL, |
| 109 | MX28_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL, |
| 110 | MX28_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL, |
| 111 | MX28_PAD_LCD_D18__LCD_D18 | MXS_PAD_CTRL, |
| 112 | MX28_PAD_LCD_D19__LCD_D19 | MXS_PAD_CTRL, |
| 113 | MX28_PAD_LCD_D20__LCD_D20 | MXS_PAD_CTRL, |
| 114 | MX28_PAD_LCD_D21__LCD_D21 | MXS_PAD_CTRL, |
| 115 | MX28_PAD_LCD_D22__LCD_D22 | MXS_PAD_CTRL, |
| 116 | MX28_PAD_LCD_D23__LCD_D23 | MXS_PAD_CTRL, |
| 117 | |
| 118 | MX28_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL, |
| 119 | MX28_PAD_LCD_DOTCLK__LCD_DOTCLK | MXS_PAD_CTRL, |
| 120 | |
| 121 | /* mmc0 */ |
| 122 | MX28_PAD_SSP0_DATA0__SSP0_D0 | |
| 123 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 124 | MX28_PAD_SSP0_DATA1__SSP0_D1 | |
| 125 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 126 | MX28_PAD_SSP0_DATA2__SSP0_D2 | |
| 127 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 128 | MX28_PAD_SSP0_DATA3__SSP0_D3 | |
| 129 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 130 | MX28_PAD_SSP0_DATA4__SSP0_D4 | |
| 131 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 132 | MX28_PAD_SSP0_DATA5__SSP0_D5 | |
| 133 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 134 | MX28_PAD_SSP0_DATA6__SSP0_D6 | |
| 135 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 136 | MX28_PAD_SSP0_DATA7__SSP0_D7 | |
| 137 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 138 | MX28_PAD_SSP0_CMD__SSP0_CMD | |
| 139 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 140 | MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT | |
| 141 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), |
| 142 | MX28_PAD_SSP0_SCK__SSP0_SCK | |
| 143 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), |
| 144 | |
| 145 | /* mmc1 */ |
| 146 | MX28_PAD_GPMI_D00__SSP1_D0 | |
| 147 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 148 | MX28_PAD_GPMI_D01__SSP1_D1 | |
| 149 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 150 | MX28_PAD_GPMI_D02__SSP1_D2 | |
| 151 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 152 | MX28_PAD_GPMI_D03__SSP1_D3 | |
| 153 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 154 | MX28_PAD_GPMI_D04__SSP1_D4 | |
| 155 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 156 | MX28_PAD_GPMI_D05__SSP1_D5 | |
| 157 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 158 | MX28_PAD_GPMI_D06__SSP1_D6 | |
| 159 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 160 | MX28_PAD_GPMI_D07__SSP1_D7 | |
| 161 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 162 | MX28_PAD_GPMI_RDY1__SSP1_CMD | |
| 163 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), |
| 164 | MX28_PAD_GPMI_RDY0__SSP1_CARD_DETECT | |
| 165 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), |
| 166 | MX28_PAD_GPMI_WRN__SSP1_SCK | |
| 167 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), |
| 168 | /* write protect */ |
| 169 | MX28_PAD_GPMI_RESETN__GPIO_0_28 | |
| 170 | (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), |
| 171 | /* slot power enable */ |
| 172 | MX28_PAD_PWM4__GPIO_3_29 | |
| 173 | (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), |
| 174 | |
| 175 | /* led */ |
| 176 | MX28_PAD_PWM0__GPIO_3_16 | MXS_PAD_CTRL, |
| 177 | MX28_PAD_PWM1__GPIO_3_17 | MXS_PAD_CTRL, |
| 178 | |
| 179 | /* nand */ |
| 180 | MX28_PAD_GPMI_D00__GPMI_D0 | |
| 181 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 182 | MX28_PAD_GPMI_D01__GPMI_D1 | |
| 183 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 184 | MX28_PAD_GPMI_D02__GPMI_D2 | |
| 185 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 186 | MX28_PAD_GPMI_D03__GPMI_D3 | |
| 187 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 188 | MX28_PAD_GPMI_D04__GPMI_D4 | |
| 189 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 190 | MX28_PAD_GPMI_D05__GPMI_D5 | |
| 191 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 192 | MX28_PAD_GPMI_D06__GPMI_D6 | |
| 193 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 194 | MX28_PAD_GPMI_D07__GPMI_D7 | |
| 195 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 196 | MX28_PAD_GPMI_CE0N__GPMI_CE0N | |
| 197 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 198 | MX28_PAD_GPMI_RDY0__GPMI_READY0 | |
| 199 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL), |
| 200 | MX28_PAD_GPMI_RDN__GPMI_RDN | |
| 201 | (MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP), |
| 202 | MX28_PAD_GPMI_WRN__GPMI_WRN | |
| 203 | (MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP), |
| 204 | MX28_PAD_GPMI_ALE__GPMI_ALE | |
| 205 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_PULLUP), |
| 206 | MX28_PAD_GPMI_CLE__GPMI_CLE | |
| 207 | (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_PULLUP), |
| 208 | MX28_PAD_GPMI_RESETN__GPMI_RESETN | |
| 209 | (MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP), |
| 210 | |
| 211 | /* Backlight */ |
| 212 | MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL, |
| 213 | }; |
| 214 | |
| 215 | /* led */ |
| 216 | static const struct gpio_led m28evk_leds[] __initconst = { |
| 217 | { |
| 218 | .name = "user-led1", |
| 219 | .default_trigger = "heartbeat", |
| 220 | .gpio = M28EVK_GPIO_USERLED1, |
| 221 | }, |
| 222 | { |
| 223 | .name = "user-led2", |
| 224 | .default_trigger = "heartbeat", |
| 225 | .gpio = M28EVK_GPIO_USERLED2, |
| 226 | }, |
| 227 | }; |
| 228 | |
| 229 | static const struct gpio_led_platform_data m28evk_led_data __initconst = { |
| 230 | .leds = m28evk_leds, |
| 231 | .num_leds = ARRAY_SIZE(m28evk_leds), |
| 232 | }; |
| 233 | |
| 234 | static struct fec_platform_data mx28_fec_pdata[] __initdata = { |
| 235 | { |
| 236 | /* fec0 */ |
| 237 | .phy = PHY_INTERFACE_MODE_RMII, |
| 238 | }, { |
| 239 | /* fec1 */ |
| 240 | .phy = PHY_INTERFACE_MODE_RMII, |
| 241 | }, |
| 242 | }; |
| 243 | |
| 244 | static int __init m28evk_fec_get_mac(void) |
| 245 | { |
| 246 | int i; |
| 247 | u32 val; |
| 248 | const u32 *ocotp = mxs_get_ocotp(); |
| 249 | |
| 250 | if (!ocotp) { |
| 251 | pr_err("%s: timeout when reading fec mac from OCOTP\n", |
| 252 | __func__); |
| 253 | return -ETIMEDOUT; |
| 254 | } |
| 255 | |
| 256 | /* |
| 257 | * OCOTP only stores the last 4 octets for each mac address, |
| 258 | * so hard-code DENX OUI (C0:E5:4E) here. |
| 259 | */ |
| 260 | for (i = 0; i < 2; i++) { |
| 261 | val = ocotp[i * 4]; |
| 262 | mx28_fec_pdata[i].mac[0] = 0xC0; |
| 263 | mx28_fec_pdata[i].mac[1] = 0xE5; |
| 264 | mx28_fec_pdata[i].mac[2] = 0x4E; |
| 265 | mx28_fec_pdata[i].mac[3] = (val >> 16) & 0xff; |
| 266 | mx28_fec_pdata[i].mac[4] = (val >> 8) & 0xff; |
| 267 | mx28_fec_pdata[i].mac[5] = (val >> 0) & 0xff; |
| 268 | } |
| 269 | |
| 270 | return 0; |
| 271 | } |
| 272 | |
| 273 | /* mxsfb (lcdif) */ |
| 274 | static struct fb_videomode m28evk_video_modes[] = { |
| 275 | { |
| 276 | .name = "Ampire AM-800480R2TMQW-T01H", |
| 277 | .refresh = 60, |
| 278 | .xres = 800, |
| 279 | .yres = 480, |
| 280 | .pixclock = 30066, /* picosecond (33.26 MHz) */ |
| 281 | .left_margin = 0, |
| 282 | .right_margin = 256, |
| 283 | .upper_margin = 0, |
| 284 | .lower_margin = 45, |
| 285 | .hsync_len = 1, |
| 286 | .vsync_len = 1, |
| 287 | .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT, |
| 288 | }, |
| 289 | }; |
| 290 | |
| 291 | static const struct mxsfb_platform_data m28evk_mxsfb_pdata __initconst = { |
| 292 | .mode_list = m28evk_video_modes, |
| 293 | .mode_count = ARRAY_SIZE(m28evk_video_modes), |
| 294 | .default_bpp = 16, |
| 295 | .ld_intf_width = STMLCDIF_18BIT, |
| 296 | }; |
| 297 | |
| 298 | static struct at24_platform_data m28evk_eeprom = { |
| 299 | .byte_len = 16384, |
| 300 | .page_size = 32, |
| 301 | .flags = AT24_FLAG_ADDR16, |
| 302 | }; |
| 303 | |
| 304 | static struct i2c_board_info m28_stk5v3_i2c_boardinfo[] __initdata = { |
| 305 | { |
| 306 | I2C_BOARD_INFO("at24", 0x51), /* E0=1, E1=0, E2=0 */ |
| 307 | .platform_data = &m28evk_eeprom, |
| 308 | }, |
| 309 | }; |
| 310 | |
| 311 | static struct mxs_mmc_platform_data m28evk_mmc_pdata[] __initdata = { |
| 312 | { |
| 313 | /* mmc0 */ |
| 314 | .wp_gpio = MX28EVK_MMC0_WRITE_PROTECT, |
| 315 | .flags = SLOTF_8_BIT_CAPABLE, |
| 316 | }, { |
| 317 | /* mmc1 */ |
| 318 | .wp_gpio = MX28EVK_MMC1_WRITE_PROTECT, |
| 319 | .flags = SLOTF_8_BIT_CAPABLE, |
| 320 | }, |
| 321 | }; |
| 322 | |
| 323 | static void __init m28evk_init(void) |
| 324 | { |
| 325 | mxs_iomux_setup_multiple_pads(m28evk_pads, ARRAY_SIZE(m28evk_pads)); |
| 326 | |
| 327 | mx28_add_duart(); |
| 328 | mx28_add_auart0(); |
| 329 | mx28_add_auart3(); |
| 330 | |
| 331 | if (!m28evk_fec_get_mac()) { |
| 332 | mx28_add_fec(0, &mx28_fec_pdata[0]); |
| 333 | mx28_add_fec(1, &mx28_fec_pdata[1]); |
| 334 | } |
| 335 | |
| 336 | mx28_add_flexcan(0, NULL); |
| 337 | mx28_add_flexcan(1, NULL); |
| 338 | |
| 339 | mx28_add_mxsfb(&m28evk_mxsfb_pdata); |
| 340 | |
| 341 | mx28_add_mxs_mmc(0, &m28evk_mmc_pdata[0]); |
| 342 | mx28_add_mxs_mmc(1, &m28evk_mmc_pdata[1]); |
| 343 | |
| 344 | gpio_led_register_device(0, &m28evk_led_data); |
| 345 | |
| 346 | /* I2C */ |
| 347 | mx28_add_mxs_i2c(0); |
| 348 | i2c_register_board_info(0, m28_stk5v3_i2c_boardinfo, |
| 349 | ARRAY_SIZE(m28_stk5v3_i2c_boardinfo)); |
| 350 | } |
| 351 | |
| 352 | static void __init m28evk_timer_init(void) |
| 353 | { |
| 354 | mx28_clocks_init(); |
| 355 | } |
| 356 | |
| 357 | static struct sys_timer m28evk_timer = { |
| 358 | .init = m28evk_timer_init, |
| 359 | }; |
| 360 | |
| 361 | MACHINE_START(M28EVK, "DENX M28 EVK") |
| 362 | .map_io = mx28_map_io, |
| 363 | .init_irq = mx28_init_irq, |
Stefano Babic | ea42a0d | 2011-09-07 08:45:31 +0200 | [diff] [blame] | 364 | .timer = &m28evk_timer, |
Lauri Hintsala | 8d2d2d1 | 2011-11-21 10:55:55 +0200 | [diff] [blame] | 365 | .init_machine = m28evk_init, |
Russell King | 6f91c5a | 2011-11-05 15:43:30 +0000 | [diff] [blame] | 366 | .restart = mxs_restart, |
Stefano Babic | ea42a0d | 2011-09-07 08:45:31 +0200 | [diff] [blame] | 367 | MACHINE_END |