git.oblomov.eu Git - linux-2.6/blob - arch/arm/mach-mx2/mx27ads.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  * 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
  45 static 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
 144 static struct mxc_nand_platform_data mx27ads_nand_board_info = {
 145         .width = 1,
 146         .hw_ecc = 1,
 147 };
 148
 149 /* ADS's NOR flash */
 150 static struct physmap_flash_data mx27ads_flash_data = {
 151         .width = 2,
 152 };
 153
 154 static struct resource mx27ads_flash_resource = {
 155         .start = 0xc0000000,
 156         .end = 0xc0000000 + 0x02000000 - 1,
 157         .flags = IORESOURCE_MEM,
 158
 159 };
 160
 161 static 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
 171 static struct imxi2c_platform_data mx27ads_i2c_data = {
 172         .bitrate = 100000,
 173 };
 174
 175 static struct i2c_board_info mx27ads_i2c_devices[] = {
 176 };
 177
 178 void 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
 186 static struct imx_fb_platform_data mx27ads_fb_data = {
 187         .pixclock       = 188679,
 188         .xres           = 240,
 189         .yres           = 320,
 190
 191         .bpp            = 16,
 192         .hsync_len      = 1,
 193         .left_margin    = 9,
 194         .right_margin   = 16,
 195
 196         .vsync_len      = 1,
 197         .upper_margin   = 7,
 198         .lower_margin   = 9,
 199         .fixed_screen_cpu = 0,
 200
 201         /*
 202          * - HSYNC active high
 203          * - VSYNC active high
 204          * - clk notenabled while idle
 205          * - clock inverted
 206          * - data not inverted
 207          * - data enable low active
 208          * - enable sharp mode
 209          */
 210         .pcr            = 0xFB008BC0,
 211         .pwmr           = 0x00A903FF,
 212         .lscr1          = 0x00120300,
 213         .dmacr          = 0x00020010,
 214
 215         .lcd_power      = lcd_power,
 216 };
 217
 218 static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 219                               void *data)
 220 {
 221         return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
 222                            "sdhc1-card-detect", data);
 223 }
 224
 225 static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
 226                               void *data)
 227 {
 228         return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
 229                            "sdhc2-card-detect", data);
 230 }
 231
 232 static void mx27ads_sdhc1_exit(struct device *dev, void *data)
 233 {
 234         free_irq(IRQ_GPIOE(21), data);
 235 }
 236
 237 static void mx27ads_sdhc2_exit(struct device *dev, void *data)
 238 {
 239         free_irq(IRQ_GPIOB(7), data);
 240 }
 241
 242 static struct imxmmc_platform_data sdhc1_pdata = {
 243         .init = mx27ads_sdhc1_init,
 244         .exit = mx27ads_sdhc1_exit,
 245 };
 246
 247 static struct imxmmc_platform_data sdhc2_pdata = {
 248         .init = mx27ads_sdhc2_init,
 249         .exit = mx27ads_sdhc2_exit,
 250 };
 251
 252 static struct platform_device *platform_devices[] __initdata = {
 253         &mx27ads_nor_mtd_device,
 254         &mxc_fec_device,
 255         &mxc_w1_master_device,
 256 };
 257
 258 static struct imxuart_platform_data uart_pdata[] = {
 259         {
 260                 .flags = IMXUART_HAVE_RTSCTS,
 261         }, {
 262                 .flags = IMXUART_HAVE_RTSCTS,
 263         }, {
 264                 .flags = IMXUART_HAVE_RTSCTS,
 265         }, {
 266                 .flags = IMXUART_HAVE_RTSCTS,
 267         }, {
 268                 .flags = IMXUART_HAVE_RTSCTS,
 269         }, {
 270                 .flags = IMXUART_HAVE_RTSCTS,
 271         },
 272 };
 273
 274 static void __init mx27ads_board_init(void)
 275 {
 276         mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
 277                         "mx27ads");
 278
 279         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
 280         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
 281         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
 282         mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
 283         mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
 284         mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
 285         mxc_register_device(&mxc_nand_device, &mx27ads_nand_board_info);
 286
 287         /* only the i2c master 1 is used on this CPU card */
 288         i2c_register_board_info(1, mx27ads_i2c_devices,
 289                                 ARRAY_SIZE(mx27ads_i2c_devices));
 290         mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data);
 291         mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
 292         mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
 293         mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);
 294
 295         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 296 }
 297
 298 static void __init mx27ads_timer_init(void)
 299 {
 300         unsigned long fref = 26000000;
 301
 302         if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
 303                 fref = 27000000;
 304
 305         mx27_clocks_init(fref);
 306 }
 307
 308 static struct sys_timer mx27ads_timer = {
 309         .init   = mx27ads_timer_init,
 310 };
 311
 312 static struct map_desc mx27ads_io_desc[] __initdata = {
 313         {
 314                 .virtual = PBC_BASE_ADDRESS,
 315                 .pfn = __phys_to_pfn(CS4_BASE_ADDR),
 316                 .length = SZ_1M,
 317                 .type = MT_DEVICE,
 318         },
 319 };
 320
 321 static void __init mx27ads_map_io(void)
 322 {
 323         mx27_map_io();
 324         iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
 325 }
 326
 327 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
 328         /* maintainer: Freescale Semiconductor, Inc. */
 329         .phys_io        = AIPI_BASE_ADDR,
 330         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 331         .boot_params    = PHYS_OFFSET + 0x100,
 332         .map_io         = mx27ads_map_io,
 333         .init_irq       = mxc_init_irq,
 334         .init_machine   = mx27ads_board_init,
 335         .timer          = &mx27ads_timer,
 336 MACHINE_END
 337