arch/arm/mach-imx/mach-mxt_td60.c

   1 /*
   2  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   3  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
   4  *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   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.
  15  */
  16
  17 #include <linux/platform_device.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/map.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/mtd/physmap.h>
  22 #include <linux/i2c.h>
  23 #include <linux/irq.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/time.h>
  27 #include <asm/mach/map.h>
  28 #include <linux/gpio.h>
  29 #include <linux/i2c/pca953x.h>
  30
  31 #include "common.h"
  32 #include "devices-imx27.h"
  33 #include "hardware.h"
  34 #include "iomux-mx27.h"
  35
  36 static const int mxt_td60_pins[] __initconst = {
  37         /* UART0 */
  38         PE12_PF_UART1_TXD,
  39         PE13_PF_UART1_RXD,
  40         PE14_PF_UART1_CTS,
  41         PE15_PF_UART1_RTS,
  42         /* UART1 */
  43         PE3_PF_UART2_CTS,
  44         PE4_PF_UART2_RTS,
  45         PE6_PF_UART2_TXD,
  46         PE7_PF_UART2_RXD,
  47         /* UART2 */
  48         PE8_PF_UART3_TXD,
  49         PE9_PF_UART3_RXD,
  50         PE10_PF_UART3_CTS,
  51         PE11_PF_UART3_RTS,
  52         /* FEC */
  53         PD0_AIN_FEC_TXD0,
  54         PD1_AIN_FEC_TXD1,
  55         PD2_AIN_FEC_TXD2,
  56         PD3_AIN_FEC_TXD3,
  57         PD4_AOUT_FEC_RX_ER,
  58         PD5_AOUT_FEC_RXD1,
  59         PD6_AOUT_FEC_RXD2,
  60         PD7_AOUT_FEC_RXD3,
  61         PD8_AF_FEC_MDIO,
  62         PD9_AIN_FEC_MDC,
  63         PD10_AOUT_FEC_CRS,
  64         PD11_AOUT_FEC_TX_CLK,
  65         PD12_AOUT_FEC_RXD0,
  66         PD13_AOUT_FEC_RX_DV,
  67         PD14_AOUT_FEC_RX_CLK,
  68         PD15_AOUT_FEC_COL,
  69         PD16_AIN_FEC_TX_ER,
  70         PF23_AIN_FEC_TX_EN,
  71         /* I2C1 */
  72         PD17_PF_I2C_DATA,
  73         PD18_PF_I2C_CLK,
  74         /* I2C2 */
  75         PC5_PF_I2C2_SDA,
  76         PC6_PF_I2C2_SCL,
  77         /* FB */
  78         PA5_PF_LSCLK,
  79         PA6_PF_LD0,
  80         PA7_PF_LD1,
  81         PA8_PF_LD2,
  82         PA9_PF_LD3,
  83         PA10_PF_LD4,
  84         PA11_PF_LD5,
  85         PA12_PF_LD6,
  86         PA13_PF_LD7,
  87         PA14_PF_LD8,
  88         PA15_PF_LD9,
  89         PA16_PF_LD10,
  90         PA17_PF_LD11,
  91         PA18_PF_LD12,
  92         PA19_PF_LD13,
  93         PA20_PF_LD14,
  94         PA21_PF_LD15,
  95         PA22_PF_LD16,
  96         PA23_PF_LD17,
  97         PA25_PF_CLS,
  98         PA27_PF_SPL_SPR,
  99         PA28_PF_HSYNC,
 100         PA29_PF_VSYNC,
 101         PA30_PF_CONTRAST,
 102         PA31_PF_OE_ACD,
 103         /* OWIRE */
 104         PE16_AF_OWIRE,
 105         /* SDHC1*/
 106         PE18_PF_SD1_D0,
 107         PE19_PF_SD1_D1,
 108         PE20_PF_SD1_D2,
 109         PE21_PF_SD1_D3,
 110         PE22_PF_SD1_CMD,
 111         PE23_PF_SD1_CLK,
 112         PF8_AF_ATA_IORDY,
 113         /* SDHC2*/
 114         PB4_PF_SD2_D0,
 115         PB5_PF_SD2_D1,
 116         PB6_PF_SD2_D2,
 117         PB7_PF_SD2_D3,
 118         PB8_PF_SD2_CMD,
 119         PB9_PF_SD2_CLK,
 120 };
 121
 122 static const struct mxc_nand_platform_data
 123 mxt_td60_nand_board_info __initconst = {
 124         .width = 1,
 125         .hw_ecc = 1,
 126 };
 127
 128 static const struct imxi2c_platform_data mxt_td60_i2c0_data __initconst = {
 129         .bitrate = 100000,
 130 };
 131
 132 /* PCA9557 */
 133 static int mxt_td60_pca9557_setup(struct i2c_client *client,
 134                                 unsigned gpio_base, unsigned ngpio,
 135                                 void *context)
 136 {
 137         static int mxt_td60_gpio_value[] = {
 138                 -1, -1, -1, -1, -1, -1, -1, 1
 139         };
 140         int n;
 141
 142         for (n = 0; n < ARRAY_SIZE(mxt_td60_gpio_value); ++n) {
 143                 gpio_request(gpio_base + n, "MXT_TD60 GPIO Exp");
 144                 if (mxt_td60_gpio_value[n] < 0)
 145                         gpio_direction_input(gpio_base + n);
 146                 else
 147                         gpio_direction_output(gpio_base + n,
 148                                                 mxt_td60_gpio_value[n]);
 149                 gpio_export(gpio_base + n, 0);
 150         }
 151
 152         return 0;
 153 }
 154
 155 static struct pca953x_platform_data mxt_td60_pca9557_pdata = {
 156         .gpio_base      = 240, /* place PCA9557 after all MX27 gpio pins */
 157         .invert         = 0, /* Do not invert */
 158         .setup          = mxt_td60_pca9557_setup,
 159 };
 160
 161 static struct i2c_board_info mxt_td60_i2c_devices[] = {
 162         {
 163                 I2C_BOARD_INFO("pca9557", 0x18),
 164                 .platform_data = &mxt_td60_pca9557_pdata,
 165         },
 166 };
 167
 168 static const struct imxi2c_platform_data mxt_td60_i2c1_data __initconst = {
 169         .bitrate = 100000,
 170 };
 171
 172 static struct i2c_board_info mxt_td60_i2c2_devices[] = {
 173 };
 174
 175 static struct imx_fb_videomode mxt_td60_modes[] = {
 176         {
 177                 .mode = {
 178                         .name           = "Chimei LW700AT9003",
 179                         .refresh        = 60,
 180                         .xres           = 800,
 181                         .yres           = 480,
 182                         .pixclock       = 30303,
 183                         .hsync_len      = 64,
 184                         .left_margin    = 0x67,
 185                         .right_margin   = 0x68,
 186                         .vsync_len      = 16,
 187                         .upper_margin   = 0x0f,
 188                         .lower_margin   = 0x0f,
 189                 },
 190                 .bpp            = 16,
 191                 .pcr            = 0xFA208B83,
 192         },
 193 };
 194
 195 static const struct imx_fb_platform_data mxt_td60_fb_data __initconst = {
 196         .mode = mxt_td60_modes,
 197         .num_modes = ARRAY_SIZE(mxt_td60_modes),
 198
 199         /*
 200          * - HSYNC active high
 201          * - VSYNC active high
 202          * - clk notenabled while idle
 203          * - clock inverted
 204          * - data not inverted
 205          * - data enable low active
 206          * - enable sharp mode
 207          */
 208         .pwmr           = 0x00A903FF,
 209         .lscr1          = 0x00120300,
 210         .dmacr          = 0x00020010,
 211 };
 212
 213 static int mxt_td60_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 214                                 void *data)
 215 {
 216         return request_irq(gpio_to_irq(IMX_GPIO_NR(6, 8)), detect_irq,
 217                            IRQF_TRIGGER_FALLING, "sdhc1-card-detect", data);
 218 }
 219
 220 static void mxt_td60_sdhc1_exit(struct device *dev, void *data)
 221 {
 222         free_irq(gpio_to_irq(IMX_GPIO_NR(6, 8)), data);
 223 }
 224
 225 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 226         .init = mxt_td60_sdhc1_init,
 227         .exit = mxt_td60_sdhc1_exit,
 228 };
 229
 230 static const struct imxuart_platform_data uart_pdata __initconst = {
 231         .flags = IMXUART_HAVE_RTSCTS,
 232 };
 233
 234 static void __init mxt_td60_board_init(void)
 235 {
 236         imx27_soc_init();
 237
 238         mxc_gpio_setup_multiple_pins(mxt_td60_pins, ARRAY_SIZE(mxt_td60_pins),
 239                         "MXT_TD60");
 240
 241         imx27_add_imx_uart0(&uart_pdata);
 242         imx27_add_imx_uart1(&uart_pdata);
 243         imx27_add_imx_uart2(&uart_pdata);
 244         imx27_add_mxc_nand(&mxt_td60_nand_board_info);
 245
 246         i2c_register_board_info(0, mxt_td60_i2c_devices,
 247                                 ARRAY_SIZE(mxt_td60_i2c_devices));
 248
 249         i2c_register_board_info(1, mxt_td60_i2c2_devices,
 250                                 ARRAY_SIZE(mxt_td60_i2c2_devices));
 251
 252         imx27_add_imx_i2c(0, &mxt_td60_i2c0_data);
 253         imx27_add_imx_i2c(1, &mxt_td60_i2c1_data);
 254         imx27_add_imx_fb(&mxt_td60_fb_data);
 255         imx27_add_mxc_mmc(0, &sdhc1_pdata);
 256         imx27_add_fec(NULL);
 257 }
 258
 259 static void __init mxt_td60_timer_init(void)
 260 {
 261         mx27_clocks_init(26000000);
 262 }
 263
 264 static struct sys_timer mxt_td60_timer = {
 265         .init   = mxt_td60_timer_init,
 266 };
 267
 268 MACHINE_START(MXT_TD60, "Maxtrack i-MXT TD60")
 269         /* maintainer: Maxtrack Industrial */
 270         .atag_offset = 0x100,
 271         .map_io = mx27_map_io,
 272         .init_early = imx27_init_early,
 273         .init_irq = mx27_init_irq,
 274         .handle_irq = imx27_handle_irq,
 275         .timer = &mxt_td60_timer,
 276         .init_machine = mxt_td60_board_init,
 277         .restart        = mxc_restart,
 278 MACHINE_END