linux/arch/arm/mach-mx2/mx27ads.c
<<
>>
Prefs
   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 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21#include <linux/platform_device.h>
  22#include <linux/mtd/mtd.h>
  23#include <linux/mtd/map.h>
  24#include <linux/mtd/partitions.h>
  25#include <linux/mtd/physmap.h>
  26#include <linux/i2c.h>
  27#include <linux/irq.h>
  28#include <mach/common.h>
  29#include <mach/hardware.h>
  30#include <asm/mach-types.h>
  31#include <asm/mach/arch.h>
  32#include <asm/mach/time.h>
  33#include <asm/mach/map.h>
  34#include <mach/gpio.h>
  35#include <mach/imx-uart.h>
  36#include <mach/iomux.h>
  37#include <mach/board-mx27ads.h>
  38#include <mach/mxc_nand.h>
  39#include <mach/i2c.h>
  40#include <mach/imxfb.h>
  41#include <mach/mmc.h>
  42
  43#include "devices.h"
  44
  45static unsigned int mx27ads_pins[] = {
  46        /* UART0 */
  47        PE12_PF_UART1_TXD,
  48        PE13_PF_UART1_RXD,
  49        PE14_PF_UART1_CTS,
  50        PE15_PF_UART1_RTS,
  51        /* UART1 */
  52        PE3_PF_UART2_CTS,
  53        PE4_PF_UART2_RTS,
  54        PE6_PF_UART2_TXD,
  55        PE7_PF_UART2_RXD,
  56        /* UART2 */
  57        PE8_PF_UART3_TXD,
  58        PE9_PF_UART3_RXD,
  59        PE10_PF_UART3_CTS,
  60        PE11_PF_UART3_RTS,
  61        /* UART3 */
  62        PB26_AF_UART4_RTS,
  63        PB28_AF_UART4_TXD,
  64        PB29_AF_UART4_CTS,
  65        PB31_AF_UART4_RXD,
  66        /* UART4 */
  67        PB18_AF_UART5_TXD,
  68        PB19_AF_UART5_RXD,
  69        PB20_AF_UART5_CTS,
  70        PB21_AF_UART5_RTS,
  71        /* UART5 */
  72        PB10_AF_UART6_TXD,
  73        PB12_AF_UART6_CTS,
  74        PB11_AF_UART6_RXD,
  75        PB13_AF_UART6_RTS,
  76        /* FEC */
  77        PD0_AIN_FEC_TXD0,
  78        PD1_AIN_FEC_TXD1,
  79        PD2_AIN_FEC_TXD2,
  80        PD3_AIN_FEC_TXD3,
  81        PD4_AOUT_FEC_RX_ER,
  82        PD5_AOUT_FEC_RXD1,
  83        PD6_AOUT_FEC_RXD2,
  84        PD7_AOUT_FEC_RXD3,
  85        PD8_AF_FEC_MDIO,
  86        PD9_AIN_FEC_MDC,
  87        PD10_AOUT_FEC_CRS,
  88        PD11_AOUT_FEC_TX_CLK,
  89        PD12_AOUT_FEC_RXD0,
  90        PD13_AOUT_FEC_RX_DV,
  91        PD14_AOUT_FEC_RX_CLK,
  92        PD15_AOUT_FEC_COL,
  93        PD16_AIN_FEC_TX_ER,
  94        PF23_AIN_FEC_TX_EN,
  95        /* I2C2 */
  96        PC5_PF_I2C2_SDA,
  97        PC6_PF_I2C2_SCL,
  98        /* FB */
  99        PA5_PF_LSCLK,
 100        PA6_PF_LD0,
 101        PA7_PF_LD1,
 102        PA8_PF_LD2,
 103        PA9_PF_LD3,
 104        PA10_PF_LD4,
 105        PA11_PF_LD5,
 106        PA12_PF_LD6,
 107        PA13_PF_LD7,
 108        PA14_PF_LD8,
 109        PA15_PF_LD9,
 110        PA16_PF_LD10,
 111        PA17_PF_LD11,
 112        PA18_PF_LD12,
 113        PA19_PF_LD13,
 114        PA20_PF_LD14,
 115        PA21_PF_LD15,
 116        PA22_PF_LD16,
 117        PA23_PF_LD17,
 118        PA24_PF_REV,
 119        PA25_PF_CLS,
 120        PA26_PF_PS,
 121        PA27_PF_SPL_SPR,
 122        PA28_PF_HSYNC,
 123        PA29_PF_VSYNC,
 124        PA30_PF_CONTRAST,
 125        PA31_PF_OE_ACD,
 126        /* OWIRE */
 127        PE16_AF_OWIRE,
 128        /* SDHC1*/
 129        PE18_PF_SD1_D0,
 130        PE19_PF_SD1_D1,
 131        PE20_PF_SD1_D2,
 132        PE21_PF_SD1_D3,
 133        PE22_PF_SD1_CMD,
 134        PE23_PF_SD1_CLK,
 135        /* SDHC2*/
 136        PB4_PF_SD2_D0,
 137        PB5_PF_SD2_D1,
 138        PB6_PF_SD2_D2,
 139        PB7_PF_SD2_D3,
 140        PB8_PF_SD2_CMD,
 141        PB9_PF_SD2_CLK,
 142};
 143
 144static struct mxc_nand_platform_data mx27ads_nand_board_info = {
 145        .width = 1,
 146        .hw_ecc = 1,
 147};
 148
 149/* ADS's NOR flash */
 150static struct physmap_flash_data mx27ads_flash_data = {
 151        .width = 2,
 152};
 153
 154static struct resource mx27ads_flash_resource = {
 155        .start = 0xc0000000,
 156        .end = 0xc0000000 + 0x02000000 - 1,
 157        .flags = IORESOURCE_MEM,
 158
 159};
 160
 161static struct platform_device mx27ads_nor_mtd_device = {
 162        .name = "physmap-flash",
 163        .id = 0,
 164        .dev = {
 165                .platform_data = &mx27ads_flash_data,
 166        },
 167        .num_resources = 1,
 168        .resource = &mx27ads_flash_resource,
 169};
 170
 171static struct imxi2c_platform_data mx27ads_i2c_data = {
 172        .bitrate = 100000,
 173};
 174
 175static struct i2c_board_info mx27ads_i2c_devices[] = {
 176};
 177
 178void lcd_power(int on)
 179{
 180        if (on)
 181                __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
 182        else
 183                __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
 184}
 185
 186static struct imx_fb_videomode mx27ads_modes[] = {
 187        {
 188                .mode = {
 189                        .name           = "Sharp-LQ035Q7",
 190                        .refresh        = 60,
 191                        .xres           = 240,
 192                        .yres           = 320,
 193                        .pixclock       = 188679, /* in ps (5.3MHz) */
 194                        .hsync_len      = 1,
 195                        .left_margin    = 9,
 196                        .right_margin   = 16,
 197                        .vsync_len      = 1,
 198                        .upper_margin   = 7,
 199                        .lower_margin   = 9,
 200                },
 201                .bpp            = 16,
 202                .pcr            = 0xFB008BC0,
 203        },
 204};
 205
 206static struct imx_fb_platform_data mx27ads_fb_data = {
 207        .mode = mx27ads_modes,
 208        .num_modes = ARRAY_SIZE(mx27ads_modes),
 209
 210        /*
 211         * - HSYNC active high
 212         * - VSYNC active high
 213         * - clk notenabled while idle
 214         * - clock inverted
 215         * - data not inverted
 216         * - data enable low active
 217         * - enable sharp mode
 218         */
 219        .pwmr           = 0x00A903FF,
 220        .lscr1          = 0x00120300,
 221        .dmacr          = 0x00020010,
 222
 223        .lcd_power      = lcd_power,
 224};
 225
 226static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 227                              void *data)
 228{
 229        return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
 230                           "sdhc1-card-detect", data);
 231}
 232
 233static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
 234                              void *data)
 235{
 236        return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
 237                           "sdhc2-card-detect", data);
 238}
 239
 240static void mx27ads_sdhc1_exit(struct device *dev, void *data)
 241{
 242        free_irq(IRQ_GPIOE(21), data);
 243}
 244
 245static void mx27ads_sdhc2_exit(struct device *dev, void *data)
 246{
 247        free_irq(IRQ_GPIOB(7), data);
 248}
 249
 250static struct imxmmc_platform_data sdhc1_pdata = {
 251        .init = mx27ads_sdhc1_init,
 252        .exit = mx27ads_sdhc1_exit,
 253};
 254
 255static struct imxmmc_platform_data sdhc2_pdata = {
 256        .init = mx27ads_sdhc2_init,
 257        .exit = mx27ads_sdhc2_exit,
 258};
 259
 260static struct platform_device *platform_devices[] __initdata = {
 261        &mx27ads_nor_mtd_device,
 262        &mxc_fec_device,
 263        &mxc_w1_master_device,
 264};
 265
 266static struct imxuart_platform_data uart_pdata[] = {
 267        {
 268                .flags = IMXUART_HAVE_RTSCTS,
 269        }, {
 270                .flags = IMXUART_HAVE_RTSCTS,
 271        }, {
 272                .flags = IMXUART_HAVE_RTSCTS,
 273        }, {
 274                .flags = IMXUART_HAVE_RTSCTS,
 275        }, {
 276                .flags = IMXUART_HAVE_RTSCTS,
 277        }, {
 278                .flags = IMXUART_HAVE_RTSCTS,
 279        },
 280};
 281
 282static void __init mx27ads_board_init(void)
 283{
 284        mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
 285                        "mx27ads");
 286
 287        mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
 288        mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
 289        mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
 290        mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
 291        mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
 292        mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
 293        mxc_register_device(&mxc_nand_device, &mx27ads_nand_board_info);
 294
 295        /* only the i2c master 1 is used on this CPU card */
 296        i2c_register_board_info(1, mx27ads_i2c_devices,
 297                                ARRAY_SIZE(mx27ads_i2c_devices));
 298        mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data);
 299        mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
 300        mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
 301        mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);
 302
 303        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 304}
 305
 306static void __init mx27ads_timer_init(void)
 307{
 308        unsigned long fref = 26000000;
 309
 310        if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
 311                fref = 27000000;
 312
 313        mx27_clocks_init(fref);
 314}
 315
 316static struct sys_timer mx27ads_timer = {
 317        .init   = mx27ads_timer_init,
 318};
 319
 320static struct map_desc mx27ads_io_desc[] __initdata = {
 321        {
 322                .virtual = PBC_BASE_ADDRESS,
 323                .pfn = __phys_to_pfn(CS4_BASE_ADDR),
 324                .length = SZ_1M,
 325                .type = MT_DEVICE,
 326        },
 327};
 328
 329static void __init mx27ads_map_io(void)
 330{
 331        mx27_map_io();
 332        iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
 333}
 334
 335MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
 336        /* maintainer: Freescale Semiconductor, Inc. */
 337        .phys_io        = AIPI_BASE_ADDR,
 338        .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 339        .boot_params    = PHYS_OFFSET + 0x100,
 340        .map_io         = mx27ads_map_io,
 341        .init_irq       = mx27_init_irq,
 342        .init_machine   = mx27ads_board_init,
 343        .timer          = &mx27ads_timer,
 344MACHINE_END
 345
 346