arch/arm/mach-pxa/colibri-pxa270.c

   1 /*
   2  *  linux/arch/arm/mach-pxa/colibri-pxa270.c
   3  *
   4  *  Support for Toradex PXA270 based Colibri module
   5  *  Daniel Mack <daniel@caiaq.de>
   6  *  Marek Vasut <marek.vasut@gmail.com>
   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 version 2 as
  10  *  published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/kernel.h>
  16 #include <linux/mtd/mtd.h>
  17 #include <linux/mtd/partitions.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/ucb1400.h>
  21
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/flash.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/sizes.h>
  26
  27 #include <mach/audio.h>
  28 #include <mach/colibri.h>
  29 #include <mach/pxa27x.h>
  30
  31 #include "devices.h"
  32 #include "generic.h"
  33
  34 /******************************************************************************
  35  * Evaluation board MFP
  36  ******************************************************************************/
  37 #ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
  38 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
  39         /* MMC */
  40         GPIO32_MMC_CLK,
  41         GPIO92_MMC_DAT_0,
  42         GPIO109_MMC_DAT_1,
  43         GPIO110_MMC_DAT_2,
  44         GPIO111_MMC_DAT_3,
  45         GPIO112_MMC_CMD,
  46         GPIO0_GPIO,     /* SD detect */
  47
  48         /* FFUART */
  49         GPIO39_FFUART_TXD,
  50         GPIO34_FFUART_RXD,
  51
  52         /* UHC */
  53         GPIO88_USBH1_PWR,
  54         GPIO89_USBH1_PEN,
  55         GPIO119_USBH2_PWR,
  56         GPIO120_USBH2_PEN,
  57
  58         /* PCMCIA */
  59         GPIO85_nPCE_1,
  60         GPIO54_nPCE_2,
  61         GPIO55_nPREG,
  62         GPIO50_nPIOR,
  63         GPIO51_nPIOW,
  64         GPIO49_nPWE,
  65         GPIO48_nPOE,
  66         GPIO57_nIOIS16,
  67         GPIO56_nPWAIT,
  68         GPIO104_PSKTSEL,
  69         GPIO53_GPIO,    /* RESET */
  70         GPIO83_GPIO,    /* BVD1 */
  71         GPIO82_GPIO,    /* BVD2 */
  72         GPIO1_GPIO,     /* READY */
  73         GPIO84_GPIO,    /* DETECT */
  74         GPIO107_GPIO,   /* PPEN */
  75
  76         /* I2C */
  77         GPIO117_I2C_SCL,
  78         GPIO118_I2C_SDA,
  79 };
  80 #else
  81 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
  82 #endif
  83
  84 #ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
  85 static mfp_cfg_t income_pin_config[] __initdata = {
  86         /* MMC */
  87         GPIO32_MMC_CLK,
  88         GPIO92_MMC_DAT_0,
  89         GPIO109_MMC_DAT_1,
  90         GPIO110_MMC_DAT_2,
  91         GPIO111_MMC_DAT_3,
  92         GPIO112_MMC_CMD,
  93         GPIO0_GPIO,     /* SD detect */
  94         GPIO1_GPIO,     /* SD read-only */
  95
  96         /* FFUART */
  97         GPIO39_FFUART_TXD,
  98         GPIO34_FFUART_RXD,
  99
 100         /* BFUART */
 101         GPIO42_BTUART_RXD,
 102         GPIO43_BTUART_TXD,
 103         GPIO45_BTUART_RTS,
 104
 105         /* STUART */
 106         GPIO46_STUART_RXD,
 107         GPIO47_STUART_TXD,
 108
 109         /* UHC */
 110         GPIO88_USBH1_PWR,
 111         GPIO89_USBH1_PEN,
 112
 113         /* LCD */
 114         GPIOxx_LCD_TFT_16BPP,
 115
 116         /* PWM */
 117         GPIO16_PWM0_OUT,
 118
 119         /* I2C */
 120         GPIO117_I2C_SCL,
 121         GPIO118_I2C_SDA,
 122
 123         /* LED */
 124         GPIO54_GPIO,    /* LED A */
 125         GPIO55_GPIO,    /* LED B */
 126 };
 127 #else
 128 static mfp_cfg_t income_pin_config[] __initdata = {};
 129 #endif
 130
 131 /******************************************************************************
 132  * Pin configuration
 133  ******************************************************************************/
 134 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
 135         /* Ethernet */
 136         GPIO78_nCS_2,   /* Ethernet CS */
 137         GPIO114_GPIO,   /* Ethernet IRQ */
 138
 139         /* AC97 */
 140         GPIO28_AC97_BITCLK,
 141         GPIO29_AC97_SDATA_IN_0,
 142         GPIO30_AC97_SDATA_OUT,
 143         GPIO31_AC97_SYNC,
 144         GPIO95_AC97_nRESET,
 145         GPIO98_AC97_SYSCLK,
 146         GPIO113_GPIO,   /* Touchscreen IRQ */
 147 };
 148
 149 /******************************************************************************
 150  * NOR Flash
 151  ******************************************************************************/
 152 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 153 static struct mtd_partition colibri_partitions[] = {
 154         {
 155                 .name =         "Bootloader",
 156                 .offset =       0x00000000,
 157                 .size =         0x00040000,
 158                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
 159         }, {
 160                 .name =         "Kernel",
 161                 .offset =       0x00040000,
 162                 .size =         0x00400000,
 163                 .mask_flags =   0
 164         }, {
 165                 .name =         "Rootfs",
 166                 .offset =       0x00440000,
 167                 .size =         MTDPART_SIZ_FULL,
 168                 .mask_flags =   0
 169         }
 170 };
 171
 172 static struct physmap_flash_data colibri_flash_data[] = {
 173         {
 174                 .width          = 4,                    /* bankwidth in bytes */
 175                 .parts          = colibri_partitions,
 176                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
 177         }
 178 };
 179
 180 static struct resource colibri_pxa270_flash_resource = {
 181         .start  = PXA_CS0_PHYS,
 182         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 183         .flags  = IORESOURCE_MEM,
 184 };
 185
 186 static struct platform_device colibri_pxa270_flash_device = {
 187         .name   = "physmap-flash",
 188         .id     = 0,
 189         .dev    = {
 190                 .platform_data = colibri_flash_data,
 191         },
 192         .resource = &colibri_pxa270_flash_resource,
 193         .num_resources = 1,
 194 };
 195
 196 static void __init colibri_pxa270_nor_init(void)
 197 {
 198         platform_device_register(&colibri_pxa270_flash_device);
 199 }
 200 #else
 201 static inline void colibri_pxa270_nor_init(void) {}
 202 #endif
 203
 204 /******************************************************************************
 205  * Ethernet
 206  ******************************************************************************/
 207 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 208 static struct resource colibri_pxa270_dm9000_resources[] = {
 209         {
 210                 .start  = PXA_CS2_PHYS,
 211                 .end    = PXA_CS2_PHYS + 3,
 212                 .flags  = IORESOURCE_MEM,
 213         },
 214         {
 215                 .start  = PXA_CS2_PHYS + 4,
 216                 .end    = PXA_CS2_PHYS + 4 + 500,
 217                 .flags  = IORESOURCE_MEM,
 218         },
 219         {
 220                 .start  = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 221                 .end    = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 222                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 223         },
 224 };
 225
 226 static struct platform_device colibri_pxa270_dm9000_device = {
 227         .name           = "dm9000",
 228         .id             = -1,
 229         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 230         .resource       = colibri_pxa270_dm9000_resources,
 231 };
 232
 233 static void __init colibri_pxa270_eth_init(void)
 234 {
 235         platform_device_register(&colibri_pxa270_dm9000_device);
 236 }
 237 #else
 238 static inline void colibri_pxa270_eth_init(void) {}
 239 #endif
 240
 241 /******************************************************************************
 242  * Audio and Touchscreen
 243  ******************************************************************************/
 244 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
 245         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 246 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
 247         .reset_gpio     = 95,
 248 };
 249
 250 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
 251         .irq            = gpio_to_irq(GPIO113_COLIBRI_PXA270_TS_IRQ),
 252 };
 253
 254 static struct platform_device colibri_pxa270_ucb1400_device = {
 255         .name           = "ucb1400_core",
 256         .id             = -1,
 257         .dev            = {
 258                 .platform_data = &colibri_pxa270_ucb1400_pdata,
 259         },
 260 };
 261
 262 static void __init colibri_pxa270_tsc_init(void)
 263 {
 264         pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
 265         platform_device_register(&colibri_pxa270_ucb1400_device);
 266 }
 267 #else
 268 static inline void colibri_pxa270_tsc_init(void) {}
 269 #endif
 270
 271 static int colibri_pxa270_baseboard;
 272 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
 273
 274 static void __init colibri_pxa270_init(void)
 275 {
 276         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 277
 278         colibri_pxa270_nor_init();
 279         colibri_pxa270_eth_init();
 280         colibri_pxa270_tsc_init();
 281
 282         switch (colibri_pxa270_baseboard) {
 283         case COLIBRI_EVALBOARD:
 284                 pxa2xx_mfp_config(ARRAY_AND_SIZE(
 285                         colibri_pxa270_evalboard_pin_config));
 286                 colibri_evalboard_init();
 287                 break;
 288         case COLIBRI_PXA270_INCOME:
 289                 pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
 290                 colibri_pxa270_income_boardinit();
 291                 break;
 292         default:
 293                 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
 294                                 colibri_pxa270_baseboard);
 295         }
 296 }
 297
 298 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
 299  * with the INCOME mach type or with COLIBRI and the kernel parameter
 300  * "colibri_pxa270_baseboard=1"
 301  */
 302 static void __init colibri_pxa270_income_init(void)
 303 {
 304         colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
 305         colibri_pxa270_init();
 306 }
 307
 308 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 309         .atag_offset    = 0x100,
 310         .init_machine   = colibri_pxa270_init,
 311         .map_io         = pxa27x_map_io,
 312         .init_irq       = pxa27x_init_irq,
 313         .handle_irq     = pxa27x_handle_irq,
 314         .timer          = &pxa_timer,
 315 MACHINE_END
 316
 317 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
 318         .atag_offset    = 0x100,
 319         .init_machine   = colibri_pxa270_income_init,
 320         .map_io         = pxa27x_map_io,
 321         .init_irq       = pxa27x_init_irq,
 322         .handle_irq     = pxa27x_handle_irq,
 323         .timer          = &pxa_timer,
 324 MACHINE_END
 325