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/moduleparam.h>
  16 #include <linux/kernel.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/mtd/physmap.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/ucb1400.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/flash.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/sizes.h>
  27
  28 #include <mach/audio.h>
  29 #include <mach/colibri.h>
  30 #include <mach/pxa27x.h>
  31
  32 #include "devices.h"
  33 #include "generic.h"
  34
  35 /******************************************************************************
  36  * Evaluation board MFP
  37  ******************************************************************************/
  38 #ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
  39 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
  40         /* MMC */
  41         GPIO32_MMC_CLK,
  42         GPIO92_MMC_DAT_0,
  43         GPIO109_MMC_DAT_1,
  44         GPIO110_MMC_DAT_2,
  45         GPIO111_MMC_DAT_3,
  46         GPIO112_MMC_CMD,
  47         GPIO0_GPIO,     /* SD detect */
  48
  49         /* FFUART */
  50         GPIO39_FFUART_TXD,
  51         GPIO34_FFUART_RXD,
  52
  53         /* UHC */
  54         GPIO88_USBH1_PWR,
  55         GPIO89_USBH1_PEN,
  56         GPIO119_USBH2_PWR,
  57         GPIO120_USBH2_PEN,
  58
  59         /* PCMCIA */
  60         GPIO85_nPCE_1,
  61         GPIO54_nPCE_2,
  62         GPIO55_nPREG,
  63         GPIO50_nPIOR,
  64         GPIO51_nPIOW,
  65         GPIO49_nPWE,
  66         GPIO48_nPOE,
  67         GPIO57_nIOIS16,
  68         GPIO56_nPWAIT,
  69         GPIO104_PSKTSEL,
  70         GPIO53_GPIO,    /* RESET */
  71         GPIO83_GPIO,    /* BVD1 */
  72         GPIO82_GPIO,    /* BVD2 */
  73         GPIO1_GPIO,     /* READY */
  74         GPIO84_GPIO,    /* DETECT */
  75         GPIO107_GPIO,   /* PPEN */
  76
  77         /* I2C */
  78         GPIO117_I2C_SCL,
  79         GPIO118_I2C_SDA,
  80 };
  81 #else
  82 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
  83 #endif
  84
  85 #ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
  86 static mfp_cfg_t income_pin_config[] __initdata = {
  87         /* MMC */
  88         GPIO32_MMC_CLK,
  89         GPIO92_MMC_DAT_0,
  90         GPIO109_MMC_DAT_1,
  91         GPIO110_MMC_DAT_2,
  92         GPIO111_MMC_DAT_3,
  93         GPIO112_MMC_CMD,
  94         GPIO0_GPIO,     /* SD detect */
  95         GPIO1_GPIO,     /* SD read-only */
  96
  97         /* FFUART */
  98         GPIO39_FFUART_TXD,
  99         GPIO34_FFUART_RXD,
 100
 101         /* BFUART */
 102         GPIO42_BTUART_RXD,
 103         GPIO43_BTUART_TXD,
 104         GPIO45_BTUART_RTS,
 105
 106         /* STUART */
 107         GPIO46_STUART_RXD,
 108         GPIO47_STUART_TXD,
 109
 110         /* UHC */
 111         GPIO88_USBH1_PWR,
 112         GPIO89_USBH1_PEN,
 113
 114         /* LCD */
 115         GPIOxx_LCD_TFT_16BPP,
 116
 117         /* PWM */
 118         GPIO16_PWM0_OUT,
 119
 120         /* I2C */
 121         GPIO117_I2C_SCL,
 122         GPIO118_I2C_SDA,
 123
 124         /* LED */
 125         GPIO54_GPIO,    /* LED A */
 126         GPIO55_GPIO,    /* LED B */
 127 };
 128 #else
 129 static mfp_cfg_t income_pin_config[] __initdata = {};
 130 #endif
 131
 132 /******************************************************************************
 133  * Pin configuration
 134  ******************************************************************************/
 135 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
 136         /* Ethernet */
 137         GPIO78_nCS_2,   /* Ethernet CS */
 138         GPIO114_GPIO,   /* Ethernet IRQ */
 139
 140         /* AC97 */
 141         GPIO28_AC97_BITCLK,
 142         GPIO29_AC97_SDATA_IN_0,
 143         GPIO30_AC97_SDATA_OUT,
 144         GPIO31_AC97_SYNC,
 145         GPIO95_AC97_nRESET,
 146         GPIO98_AC97_SYSCLK,
 147         GPIO113_GPIO,   /* Touchscreen IRQ */
 148 };
 149
 150 /******************************************************************************
 151  * NOR Flash
 152  ******************************************************************************/
 153 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 154 static struct mtd_partition colibri_partitions[] = {
 155         {
 156                 .name =         "Bootloader",
 157                 .offset =       0x00000000,
 158                 .size =         0x00040000,
 159                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
 160         }, {
 161                 .name =         "Kernel",
 162                 .offset =       0x00040000,
 163                 .size =         0x00400000,
 164                 .mask_flags =   0
 165         }, {
 166                 .name =         "Rootfs",
 167                 .offset =       0x00440000,
 168                 .size =         MTDPART_SIZ_FULL,
 169                 .mask_flags =   0
 170         }
 171 };
 172
 173 static struct physmap_flash_data colibri_flash_data[] = {
 174         {
 175                 .width          = 4,                    /* bankwidth in bytes */
 176                 .parts          = colibri_partitions,
 177                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
 178         }
 179 };
 180
 181 static struct resource colibri_pxa270_flash_resource = {
 182         .start  = PXA_CS0_PHYS,
 183         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 184         .flags  = IORESOURCE_MEM,
 185 };
 186
 187 static struct platform_device colibri_pxa270_flash_device = {
 188         .name   = "physmap-flash",
 189         .id     = 0,
 190         .dev    = {
 191                 .platform_data = colibri_flash_data,
 192         },
 193         .resource = &colibri_pxa270_flash_resource,
 194         .num_resources = 1,
 195 };
 196
 197 static void __init colibri_pxa270_nor_init(void)
 198 {
 199         platform_device_register(&colibri_pxa270_flash_device);
 200 }
 201 #else
 202 static inline void colibri_pxa270_nor_init(void) {}
 203 #endif
 204
 205 /******************************************************************************
 206  * Ethernet
 207  ******************************************************************************/
 208 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 209 static struct resource colibri_pxa270_dm9000_resources[] = {
 210         {
 211                 .start  = PXA_CS2_PHYS,
 212                 .end    = PXA_CS2_PHYS + 3,
 213                 .flags  = IORESOURCE_MEM,
 214         },
 215         {
 216                 .start  = PXA_CS2_PHYS + 4,
 217                 .end    = PXA_CS2_PHYS + 4 + 500,
 218                 .flags  = IORESOURCE_MEM,
 219         },
 220         {
 221                 .start  = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 222                 .end    = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 223                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 224         },
 225 };
 226
 227 static struct platform_device colibri_pxa270_dm9000_device = {
 228         .name           = "dm9000",
 229         .id             = -1,
 230         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 231         .resource       = colibri_pxa270_dm9000_resources,
 232 };
 233
 234 static void __init colibri_pxa270_eth_init(void)
 235 {
 236         platform_device_register(&colibri_pxa270_dm9000_device);
 237 }
 238 #else
 239 static inline void colibri_pxa270_eth_init(void) {}
 240 #endif
 241
 242 /******************************************************************************
 243  * Audio and Touchscreen
 244  ******************************************************************************/
 245 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
 246         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 247 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
 248         .reset_gpio     = 95,
 249 };
 250
 251 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
 252         .irq            = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
 253 };
 254
 255 static struct platform_device colibri_pxa270_ucb1400_device = {
 256         .name           = "ucb1400_core",
 257         .id             = -1,
 258         .dev            = {
 259                 .platform_data = &colibri_pxa270_ucb1400_pdata,
 260         },
 261 };
 262
 263 static void __init colibri_pxa270_tsc_init(void)
 264 {
 265         pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
 266         platform_device_register(&colibri_pxa270_ucb1400_device);
 267 }
 268 #else
 269 static inline void colibri_pxa270_tsc_init(void) {}
 270 #endif
 271
 272 static int colibri_pxa270_baseboard;
 273 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
 274
 275 static void __init colibri_pxa270_init(void)
 276 {
 277         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 278
 279         colibri_pxa270_nor_init();
 280         colibri_pxa270_eth_init();
 281         colibri_pxa270_tsc_init();
 282
 283         switch (colibri_pxa270_baseboard) {
 284         case COLIBRI_EVALBOARD:
 285                 pxa2xx_mfp_config(ARRAY_AND_SIZE(
 286                         colibri_pxa270_evalboard_pin_config));
 287                 colibri_evalboard_init();
 288                 break;
 289         case COLIBRI_PXA270_INCOME:
 290                 pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
 291                 colibri_pxa270_income_boardinit();
 292                 break;
 293         default:
 294                 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
 295                                 colibri_pxa270_baseboard);
 296         }
 297 }
 298
 299 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
 300  * with the INCOME mach type or with COLIBRI and the kernel parameter
 301  * "colibri_pxa270_baseboard=1"
 302  */
 303 static void __init colibri_pxa270_income_init(void)
 304 {
 305         colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
 306         colibri_pxa270_init();
 307 }
 308
 309 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 310         .atag_offset    = 0x100,
 311         .init_machine   = colibri_pxa270_init,
 312         .map_io         = pxa27x_map_io,
 313         .nr_irqs        = PXA_NR_IRQS,
 314         .init_irq       = pxa27x_init_irq,
 315         .handle_irq     = pxa27x_handle_irq,
 316         .init_time      = pxa_timer_init,
 317         .restart        = pxa_restart,
 318 MACHINE_END
 319
 320 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
 321         .atag_offset    = 0x100,
 322         .init_machine   = colibri_pxa270_income_init,
 323         .map_io         = pxa27x_map_io,
 324         .nr_irqs        = PXA_NR_IRQS,
 325         .init_irq       = pxa27x_init_irq,
 326         .handle_irq     = pxa27x_handle_irq,
 327         .init_time      = pxa_timer_init,
 328         .restart        = pxa_restart,
 329 MACHINE_END
 330