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/regulator/machine.h>
  22 #include <linux/ucb1400.h>
  23
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/flash.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/sizes.h>
  28
  29 #include <mach/audio.h>
  30 #include "colibri.h"
  31 #include "pxa27x.h"
  32
  33 #include "devices.h"
  34 #include "generic.h"
  35
  36 /******************************************************************************
  37  * Evaluation board MFP
  38  ******************************************************************************/
  39 #ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
  40 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
  41         /* MMC */
  42         GPIO32_MMC_CLK,
  43         GPIO92_MMC_DAT_0,
  44         GPIO109_MMC_DAT_1,
  45         GPIO110_MMC_DAT_2,
  46         GPIO111_MMC_DAT_3,
  47         GPIO112_MMC_CMD,
  48         GPIO0_GPIO,     /* SD detect */
  49
  50         /* FFUART */
  51         GPIO39_FFUART_TXD,
  52         GPIO34_FFUART_RXD,
  53
  54         /* UHC */
  55         GPIO88_USBH1_PWR,
  56         GPIO89_USBH1_PEN,
  57         GPIO119_USBH2_PWR,
  58         GPIO120_USBH2_PEN,
  59
  60         /* PCMCIA */
  61         GPIO85_nPCE_1,
  62         GPIO54_nPCE_2,
  63         GPIO55_nPREG,
  64         GPIO50_nPIOR,
  65         GPIO51_nPIOW,
  66         GPIO49_nPWE,
  67         GPIO48_nPOE,
  68         GPIO57_nIOIS16,
  69         GPIO56_nPWAIT,
  70         GPIO104_PSKTSEL,
  71         GPIO53_GPIO,    /* RESET */
  72         GPIO83_GPIO,    /* BVD1 */
  73         GPIO82_GPIO,    /* BVD2 */
  74         GPIO1_GPIO,     /* READY */
  75         GPIO84_GPIO,    /* DETECT */
  76         GPIO107_GPIO,   /* PPEN */
  77
  78         /* I2C */
  79         GPIO117_I2C_SCL,
  80         GPIO118_I2C_SDA,
  81 };
  82 #else
  83 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
  84 #endif
  85
  86 #ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
  87 static mfp_cfg_t income_pin_config[] __initdata = {
  88         /* MMC */
  89         GPIO32_MMC_CLK,
  90         GPIO92_MMC_DAT_0,
  91         GPIO109_MMC_DAT_1,
  92         GPIO110_MMC_DAT_2,
  93         GPIO111_MMC_DAT_3,
  94         GPIO112_MMC_CMD,
  95         GPIO0_GPIO,     /* SD detect */
  96         GPIO1_GPIO,     /* SD read-only */
  97
  98         /* FFUART */
  99         GPIO39_FFUART_TXD,
 100         GPIO34_FFUART_RXD,
 101
 102         /* BFUART */
 103         GPIO42_BTUART_RXD,
 104         GPIO43_BTUART_TXD,
 105         GPIO45_BTUART_RTS,
 106
 107         /* STUART */
 108         GPIO46_STUART_RXD,
 109         GPIO47_STUART_TXD,
 110
 111         /* UHC */
 112         GPIO88_USBH1_PWR,
 113         GPIO89_USBH1_PEN,
 114
 115         /* LCD */
 116         GPIOxx_LCD_TFT_16BPP,
 117
 118         /* PWM */
 119         GPIO16_PWM0_OUT,
 120
 121         /* I2C */
 122         GPIO117_I2C_SCL,
 123         GPIO118_I2C_SDA,
 124
 125         /* LED */
 126         GPIO54_GPIO,    /* LED A */
 127         GPIO55_GPIO,    /* LED B */
 128 };
 129 #else
 130 static mfp_cfg_t income_pin_config[] __initdata = {};
 131 #endif
 132
 133 /******************************************************************************
 134  * Pin configuration
 135  ******************************************************************************/
 136 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
 137         /* Ethernet */
 138         GPIO78_nCS_2,   /* Ethernet CS */
 139         GPIO114_GPIO,   /* Ethernet IRQ */
 140
 141         /* AC97 */
 142         GPIO28_AC97_BITCLK,
 143         GPIO29_AC97_SDATA_IN_0,
 144         GPIO30_AC97_SDATA_OUT,
 145         GPIO31_AC97_SYNC,
 146         GPIO95_AC97_nRESET,
 147         GPIO98_AC97_SYSCLK,
 148         GPIO113_GPIO,   /* Touchscreen IRQ */
 149 };
 150
 151 /******************************************************************************
 152  * NOR Flash
 153  ******************************************************************************/
 154 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 155 static struct mtd_partition colibri_partitions[] = {
 156         {
 157                 .name =         "Bootloader",
 158                 .offset =       0x00000000,
 159                 .size =         0x00040000,
 160                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
 161         }, {
 162                 .name =         "Kernel",
 163                 .offset =       0x00040000,
 164                 .size =         0x00400000,
 165                 .mask_flags =   0
 166         }, {
 167                 .name =         "Rootfs",
 168                 .offset =       0x00440000,
 169                 .size =         MTDPART_SIZ_FULL,
 170                 .mask_flags =   0
 171         }
 172 };
 173
 174 static struct physmap_flash_data colibri_flash_data[] = {
 175         {
 176                 .width          = 4,                    /* bankwidth in bytes */
 177                 .parts          = colibri_partitions,
 178                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
 179         }
 180 };
 181
 182 static struct resource colibri_pxa270_flash_resource = {
 183         .start  = PXA_CS0_PHYS,
 184         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 185         .flags  = IORESOURCE_MEM,
 186 };
 187
 188 static struct platform_device colibri_pxa270_flash_device = {
 189         .name   = "physmap-flash",
 190         .id     = 0,
 191         .dev    = {
 192                 .platform_data = colibri_flash_data,
 193         },
 194         .resource = &colibri_pxa270_flash_resource,
 195         .num_resources = 1,
 196 };
 197
 198 static void __init colibri_pxa270_nor_init(void)
 199 {
 200         platform_device_register(&colibri_pxa270_flash_device);
 201 }
 202 #else
 203 static inline void colibri_pxa270_nor_init(void) {}
 204 #endif
 205
 206 /******************************************************************************
 207  * Ethernet
 208  ******************************************************************************/
 209 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 210 static struct resource colibri_pxa270_dm9000_resources[] = {
 211         {
 212                 .start  = PXA_CS2_PHYS,
 213                 .end    = PXA_CS2_PHYS + 3,
 214                 .flags  = IORESOURCE_MEM,
 215         },
 216         {
 217                 .start  = PXA_CS2_PHYS + 4,
 218                 .end    = PXA_CS2_PHYS + 4 + 500,
 219                 .flags  = IORESOURCE_MEM,
 220         },
 221         {
 222                 .start  = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 223                 .end    = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 224                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 225         },
 226 };
 227
 228 static struct platform_device colibri_pxa270_dm9000_device = {
 229         .name           = "dm9000",
 230         .id             = -1,
 231         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 232         .resource       = colibri_pxa270_dm9000_resources,
 233 };
 234
 235 static void __init colibri_pxa270_eth_init(void)
 236 {
 237         platform_device_register(&colibri_pxa270_dm9000_device);
 238 }
 239 #else
 240 static inline void colibri_pxa270_eth_init(void) {}
 241 #endif
 242
 243 /******************************************************************************
 244  * Audio and Touchscreen
 245  ******************************************************************************/
 246 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
 247         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 248 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
 249         .reset_gpio     = 95,
 250 };
 251
 252 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
 253         .irq            = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
 254 };
 255
 256 static struct platform_device colibri_pxa270_ucb1400_device = {
 257         .name           = "ucb1400_core",
 258         .id             = -1,
 259         .dev            = {
 260                 .platform_data = &colibri_pxa270_ucb1400_pdata,
 261         },
 262 };
 263
 264 static void __init colibri_pxa270_tsc_init(void)
 265 {
 266         pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
 267         platform_device_register(&colibri_pxa270_ucb1400_device);
 268 }
 269 #else
 270 static inline void colibri_pxa270_tsc_init(void) {}
 271 #endif
 272
 273 static int colibri_pxa270_baseboard;
 274 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
 275
 276 static void __init colibri_pxa270_init(void)
 277 {
 278         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 279
 280         colibri_pxa270_nor_init();
 281         colibri_pxa270_eth_init();
 282         colibri_pxa270_tsc_init();
 283
 284         switch (colibri_pxa270_baseboard) {
 285         case COLIBRI_EVALBOARD:
 286                 pxa2xx_mfp_config(ARRAY_AND_SIZE(
 287                         colibri_pxa270_evalboard_pin_config));
 288                 colibri_evalboard_init();
 289                 break;
 290         case COLIBRI_PXA270_INCOME:
 291                 pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
 292                 colibri_pxa270_income_boardinit();
 293                 break;
 294         default:
 295                 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
 296                                 colibri_pxa270_baseboard);
 297         }
 298
 299         regulator_has_full_constraints();
 300 }
 301
 302 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
 303  * with the INCOME mach type or with COLIBRI and the kernel parameter
 304  * "colibri_pxa270_baseboard=1"
 305  */
 306 static void __init colibri_pxa270_income_init(void)
 307 {
 308         colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
 309         colibri_pxa270_init();
 310 }
 311
 312 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 313         .atag_offset    = 0x100,
 314         .init_machine   = colibri_pxa270_init,
 315         .map_io         = pxa27x_map_io,
 316         .nr_irqs        = PXA_NR_IRQS,
 317         .init_irq       = pxa27x_init_irq,
 318         .handle_irq     = pxa27x_handle_irq,
 319         .init_time      = pxa_timer_init,
 320         .restart        = pxa_restart,
 321 MACHINE_END
 322
 323 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
 324         .atag_offset    = 0x100,
 325         .init_machine   = colibri_pxa270_income_init,
 326         .map_io         = pxa27x_map_io,
 327         .nr_irqs        = PXA_NR_IRQS,
 328         .init_irq       = pxa27x_init_irq,
 329         .handle_irq     = pxa27x_handle_irq,
 330         .init_time      = pxa_timer_init,
 331         .restart        = pxa_restart,
 332 MACHINE_END
 333