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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  linux/arch/arm/mach-pxa/colibri-pxa270.c
   4  *
   5  *  Support for Toradex PXA270 based Colibri module
   6  *  Daniel Mack <daniel@caiaq.de>
   7  *  Marek Vasut <marek.vasut@gmail.com>
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/kernel.h>
  14 #include <linux/mtd/mtd.h>
  15 #include <linux/mtd/partitions.h>
  16 #include <linux/mtd/physmap.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/regulator/machine.h>
  19 #include <linux/ucb1400.h>
  20
  21 #include <asm/mach/arch.h>
  22 #include <asm/mach/flash.h>
  23 #include <asm/mach-types.h>
  24 #include <linux/sizes.h>
  25
  26 #include <mach/audio.h>
  27 #include "colibri.h"
  28 #include "pxa27x.h"
  29
  30 #include "devices.h"
  31 #include "generic.h"
  32
  33 /******************************************************************************
  34  * Evaluation board MFP
  35  ******************************************************************************/
  36 #ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
  37 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
  38         /* MMC */
  39         GPIO32_MMC_CLK,
  40         GPIO92_MMC_DAT_0,
  41         GPIO109_MMC_DAT_1,
  42         GPIO110_MMC_DAT_2,
  43         GPIO111_MMC_DAT_3,
  44         GPIO112_MMC_CMD,
  45         GPIO0_GPIO,     /* SD detect */
  46
  47         /* FFUART */
  48         GPIO39_FFUART_TXD,
  49         GPIO34_FFUART_RXD,
  50
  51         /* UHC */
  52         GPIO88_USBH1_PWR,
  53         GPIO89_USBH1_PEN,
  54         GPIO119_USBH2_PWR,
  55         GPIO120_USBH2_PEN,
  56
  57         /* PCMCIA */
  58         GPIO85_nPCE_1,
  59         GPIO54_nPCE_2,
  60         GPIO55_nPREG,
  61         GPIO50_nPIOR,
  62         GPIO51_nPIOW,
  63         GPIO49_nPWE,
  64         GPIO48_nPOE,
  65         GPIO57_nIOIS16,
  66         GPIO56_nPWAIT,
  67         GPIO104_PSKTSEL,
  68         GPIO53_GPIO,    /* RESET */
  69         GPIO83_GPIO,    /* BVD1 */
  70         GPIO82_GPIO,    /* BVD2 */
  71         GPIO1_GPIO,     /* READY */
  72         GPIO84_GPIO,    /* DETECT */
  73         GPIO107_GPIO,   /* PPEN */
  74
  75         /* I2C */
  76         GPIO117_I2C_SCL,
  77         GPIO118_I2C_SDA,
  78 };
  79 #else
  80 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
  81 #endif
  82
  83 #ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
  84 static mfp_cfg_t income_pin_config[] __initdata = {
  85         /* MMC */
  86         GPIO32_MMC_CLK,
  87         GPIO92_MMC_DAT_0,
  88         GPIO109_MMC_DAT_1,
  89         GPIO110_MMC_DAT_2,
  90         GPIO111_MMC_DAT_3,
  91         GPIO112_MMC_CMD,
  92         GPIO0_GPIO,     /* SD detect */
  93         GPIO1_GPIO,     /* SD read-only */
  94
  95         /* FFUART */
  96         GPIO39_FFUART_TXD,
  97         GPIO34_FFUART_RXD,
  98
  99         /* BFUART */
 100         GPIO42_BTUART_RXD,
 101         GPIO43_BTUART_TXD,
 102         GPIO45_BTUART_RTS,
 103
 104         /* STUART */
 105         GPIO46_STUART_RXD,
 106         GPIO47_STUART_TXD,
 107
 108         /* UHC */
 109         GPIO88_USBH1_PWR,
 110         GPIO89_USBH1_PEN,
 111
 112         /* LCD */
 113         GPIOxx_LCD_TFT_16BPP,
 114
 115         /* PWM */
 116         GPIO16_PWM0_OUT,
 117
 118         /* I2C */
 119         GPIO117_I2C_SCL,
 120         GPIO118_I2C_SDA,
 121
 122         /* LED */
 123         GPIO54_GPIO,    /* LED A */
 124         GPIO55_GPIO,    /* LED B */
 125 };
 126 #else
 127 static mfp_cfg_t income_pin_config[] __initdata = {};
 128 #endif
 129
 130 /******************************************************************************
 131  * Pin configuration
 132  ******************************************************************************/
 133 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
 134         /* Ethernet */
 135         GPIO78_nCS_2,   /* Ethernet CS */
 136         GPIO114_GPIO,   /* Ethernet IRQ */
 137
 138         /* AC97 */
 139         GPIO28_AC97_BITCLK,
 140         GPIO29_AC97_SDATA_IN_0,
 141         GPIO30_AC97_SDATA_OUT,
 142         GPIO31_AC97_SYNC,
 143         GPIO95_AC97_nRESET,
 144         GPIO98_AC97_SYSCLK,
 145         GPIO113_GPIO,   /* Touchscreen IRQ */
 146 };
 147
 148 /******************************************************************************
 149  * NOR Flash
 150  ******************************************************************************/
 151 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 152 static struct mtd_partition colibri_partitions[] = {
 153         {
 154                 .name =         "Bootloader",
 155                 .offset =       0x00000000,
 156                 .size =         0x00040000,
 157                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
 158         }, {
 159                 .name =         "Kernel",
 160                 .offset =       0x00040000,
 161                 .size =         0x00400000,
 162                 .mask_flags =   0
 163         }, {
 164                 .name =         "Rootfs",
 165                 .offset =       0x00440000,
 166                 .size =         MTDPART_SIZ_FULL,
 167                 .mask_flags =   0
 168         }
 169 };
 170
 171 static struct physmap_flash_data colibri_flash_data[] = {
 172         {
 173                 .width          = 4,                    /* bankwidth in bytes */
 174                 .parts          = colibri_partitions,
 175                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
 176         }
 177 };
 178
 179 static struct resource colibri_pxa270_flash_resource = {
 180         .start  = PXA_CS0_PHYS,
 181         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 182         .flags  = IORESOURCE_MEM,
 183 };
 184
 185 static struct platform_device colibri_pxa270_flash_device = {
 186         .name   = "physmap-flash",
 187         .id     = 0,
 188         .dev    = {
 189                 .platform_data = colibri_flash_data,
 190         },
 191         .resource = &colibri_pxa270_flash_resource,
 192         .num_resources = 1,
 193 };
 194
 195 static void __init colibri_pxa270_nor_init(void)
 196 {
 197         platform_device_register(&colibri_pxa270_flash_device);
 198 }
 199 #else
 200 static inline void colibri_pxa270_nor_init(void) {}
 201 #endif
 202
 203 /******************************************************************************
 204  * Ethernet
 205  ******************************************************************************/
 206 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 207 static struct resource colibri_pxa270_dm9000_resources[] = {
 208         {
 209                 .start  = PXA_CS2_PHYS,
 210                 .end    = PXA_CS2_PHYS + 3,
 211                 .flags  = IORESOURCE_MEM,
 212         },
 213         {
 214                 .start  = PXA_CS2_PHYS + 4,
 215                 .end    = PXA_CS2_PHYS + 4 + 500,
 216                 .flags  = IORESOURCE_MEM,
 217         },
 218         {
 219                 .start  = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 220                 .end    = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 221                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 222         },
 223 };
 224
 225 static struct platform_device colibri_pxa270_dm9000_device = {
 226         .name           = "dm9000",
 227         .id             = -1,
 228         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 229         .resource       = colibri_pxa270_dm9000_resources,
 230 };
 231
 232 static void __init colibri_pxa270_eth_init(void)
 233 {
 234         platform_device_register(&colibri_pxa270_dm9000_device);
 235 }
 236 #else
 237 static inline void colibri_pxa270_eth_init(void) {}
 238 #endif
 239
 240 /******************************************************************************
 241  * Audio and Touchscreen
 242  ******************************************************************************/
 243 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
 244         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 245 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
 246         .reset_gpio     = 95,
 247 };
 248
 249 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
 250         .irq            = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
 251 };
 252
 253 static struct platform_device colibri_pxa270_ucb1400_device = {
 254         .name           = "ucb1400_core",
 255         .id             = -1,
 256         .dev            = {
 257                 .platform_data = &colibri_pxa270_ucb1400_pdata,
 258         },
 259 };
 260
 261 static void __init colibri_pxa270_tsc_init(void)
 262 {
 263         pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
 264         platform_device_register(&colibri_pxa270_ucb1400_device);
 265 }
 266 #else
 267 static inline void colibri_pxa270_tsc_init(void) {}
 268 #endif
 269
 270 static int colibri_pxa270_baseboard;
 271 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
 272
 273 static void __init colibri_pxa270_init(void)
 274 {
 275         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 276
 277         colibri_pxa270_nor_init();
 278         colibri_pxa270_eth_init();
 279         colibri_pxa270_tsc_init();
 280
 281         switch (colibri_pxa270_baseboard) {
 282         case COLIBRI_EVALBOARD:
 283                 pxa2xx_mfp_config(ARRAY_AND_SIZE(
 284                         colibri_pxa270_evalboard_pin_config));
 285                 colibri_evalboard_init();
 286                 break;
 287         case COLIBRI_PXA270_INCOME:
 288                 pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
 289                 colibri_pxa270_income_boardinit();
 290                 break;
 291         default:
 292                 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
 293                                 colibri_pxa270_baseboard);
 294         }
 295
 296         regulator_has_full_constraints();
 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