arm/mach-pxa/colibri-pxa270.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  *  linux/arch/arm/mach-pxa/colibri-pxa270.c
0004  *
0005  *  Support for Toradex PXA270 based Colibri module
0006  *  Daniel Mack <daniel@caiaq.de>
0007  *  Marek Vasut <marek.vasut@gmail.com>
0008  */
0009
0010 #include <linux/init.h>
0011 #include <linux/interrupt.h>
0012 #include <linux/moduleparam.h>
0013 #include <linux/kernel.h>
0014 #include <linux/mtd/mtd.h>
0015 #include <linux/mtd/partitions.h>
0016 #include <linux/mtd/physmap.h>
0017 #include <linux/platform_device.h>
0018 #include <linux/regulator/machine.h>
0019 #include <linux/ucb1400.h>
0020
0021 #include <asm/mach/arch.h>
0022 #include <asm/mach/flash.h>
0023 #include <asm/mach-types.h>
0024 #include <linux/sizes.h>
0025
0026 #include <linux/platform_data/asoc-pxa.h>
0027 #include "colibri.h"
0028 #include "pxa27x.h"
0029
0030 #include "devices.h"
0031 #include "generic.h"
0032
0033 /******************************************************************************
0034  * Evaluation board MFP
0035  ******************************************************************************/
0036 #ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
0037 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
0038     /* MMC */
0039     GPIO32_MMC_CLK,
0040     GPIO92_MMC_DAT_0,
0041     GPIO109_MMC_DAT_1,
0042     GPIO110_MMC_DAT_2,
0043     GPIO111_MMC_DAT_3,
0044     GPIO112_MMC_CMD,
0045     GPIO0_GPIO, /* SD detect */
0046
0047     /* FFUART */
0048     GPIO39_FFUART_TXD,
0049     GPIO34_FFUART_RXD,
0050
0051     /* UHC */
0052     GPIO88_USBH1_PWR,
0053     GPIO89_USBH1_PEN,
0054     GPIO119_USBH2_PWR,
0055     GPIO120_USBH2_PEN,
0056
0057     /* PCMCIA */
0058     GPIO85_nPCE_1,
0059     GPIO54_nPCE_2,
0060     GPIO55_nPREG,
0061     GPIO50_nPIOR,
0062     GPIO51_nPIOW,
0063     GPIO49_nPWE,
0064     GPIO48_nPOE,
0065     GPIO57_nIOIS16,
0066     GPIO56_nPWAIT,
0067     GPIO104_PSKTSEL,
0068     GPIO53_GPIO,    /* RESET */
0069     GPIO83_GPIO,    /* BVD1 */
0070     GPIO82_GPIO,    /* BVD2 */
0071     GPIO1_GPIO, /* READY */
0072     GPIO84_GPIO,    /* DETECT */
0073     GPIO107_GPIO,   /* PPEN */
0074
0075     /* I2C */
0076     GPIO117_I2C_SCL,
0077     GPIO118_I2C_SDA,
0078 };
0079 #else
0080 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
0081 #endif
0082
0083 #ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
0084 static mfp_cfg_t income_pin_config[] __initdata = {
0085     /* MMC */
0086     GPIO32_MMC_CLK,
0087     GPIO92_MMC_DAT_0,
0088     GPIO109_MMC_DAT_1,
0089     GPIO110_MMC_DAT_2,
0090     GPIO111_MMC_DAT_3,
0091     GPIO112_MMC_CMD,
0092     GPIO0_GPIO, /* SD detect */
0093     GPIO1_GPIO, /* SD read-only */
0094
0095     /* FFUART */
0096     GPIO39_FFUART_TXD,
0097     GPIO34_FFUART_RXD,
0098
0099     /* BFUART */
0100     GPIO42_BTUART_RXD,
0101     GPIO43_BTUART_TXD,
0102     GPIO45_BTUART_RTS,
0103
0104     /* STUART */
0105     GPIO46_STUART_RXD,
0106     GPIO47_STUART_TXD,
0107
0108     /* UHC */
0109     GPIO88_USBH1_PWR,
0110     GPIO89_USBH1_PEN,
0111
0112     /* LCD */
0113     GPIOxx_LCD_TFT_16BPP,
0114
0115     /* PWM */
0116     GPIO16_PWM0_OUT,
0117
0118     /* I2C */
0119     GPIO117_I2C_SCL,
0120     GPIO118_I2C_SDA,
0121
0122     /* LED */
0123     GPIO54_GPIO,    /* LED A */
0124     GPIO55_GPIO,    /* LED B */
0125 };
0126 #else
0127 static mfp_cfg_t income_pin_config[] __initdata = {};
0128 #endif
0129
0130 /******************************************************************************
0131  * Pin configuration
0132  ******************************************************************************/
0133 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
0134     /* Ethernet */
0135     GPIO78_nCS_2,   /* Ethernet CS */
0136     GPIO114_GPIO,   /* Ethernet IRQ */
0137
0138     /* AC97 */
0139     GPIO28_AC97_BITCLK,
0140     GPIO29_AC97_SDATA_IN_0,
0141     GPIO30_AC97_SDATA_OUT,
0142     GPIO31_AC97_SYNC,
0143     GPIO95_AC97_nRESET,
0144     GPIO98_AC97_SYSCLK,
0145     GPIO113_GPIO,   /* Touchscreen IRQ */
0146 };
0147
0148 /******************************************************************************
0149  * NOR Flash
0150  ******************************************************************************/
0151 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
0152 static struct mtd_partition colibri_partitions[] = {
0153     {
0154         .name =     "Bootloader",
0155         .offset =   0x00000000,
0156         .size =     0x00040000,
0157         .mask_flags =   MTD_WRITEABLE   /* force read-only */
0158     }, {
0159         .name =     "Kernel",
0160         .offset =   0x00040000,
0161         .size =     0x00400000,
0162         .mask_flags =   0
0163     }, {
0164         .name =     "Rootfs",
0165         .offset =   0x00440000,
0166         .size =     MTDPART_SIZ_FULL,
0167         .mask_flags =   0
0168     }
0169 };
0170
0171 static struct physmap_flash_data colibri_flash_data[] = {
0172     {
0173         .width      = 4,            /* bankwidth in bytes */
0174         .parts      = colibri_partitions,
0175         .nr_parts   = ARRAY_SIZE(colibri_partitions)
0176     }
0177 };
0178
0179 static struct resource colibri_pxa270_flash_resource = {
0180     .start  = PXA_CS0_PHYS,
0181     .end    = PXA_CS0_PHYS + SZ_32M - 1,
0182     .flags  = IORESOURCE_MEM,
0183 };
0184
0185 static struct platform_device colibri_pxa270_flash_device = {
0186     .name   = "physmap-flash",
0187     .id = 0,
0188     .dev    = {
0189         .platform_data = colibri_flash_data,
0190     },
0191     .resource = &colibri_pxa270_flash_resource,
0192     .num_resources = 1,
0193 };
0194
0195 static void __init colibri_pxa270_nor_init(void)
0196 {
0197     platform_device_register(&colibri_pxa270_flash_device);
0198 }
0199 #else
0200 static inline void colibri_pxa270_nor_init(void) {}
0201 #endif
0202
0203 /******************************************************************************
0204  * Ethernet
0205  ******************************************************************************/
0206 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
0207 static struct resource colibri_pxa270_dm9000_resources[] = {
0208     {
0209         .start  = PXA_CS2_PHYS,
0210         .end    = PXA_CS2_PHYS + 3,
0211         .flags  = IORESOURCE_MEM,
0212     },
0213     {
0214         .start  = PXA_CS2_PHYS + 4,
0215         .end    = PXA_CS2_PHYS + 4 + 500,
0216         .flags  = IORESOURCE_MEM,
0217     },
0218     {
0219         .start  = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
0220         .end    = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
0221         .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
0222     },
0223 };
0224
0225 static struct platform_device colibri_pxa270_dm9000_device = {
0226     .name       = "dm9000",
0227     .id     = -1,
0228     .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
0229     .resource   = colibri_pxa270_dm9000_resources,
0230 };
0231
0232 static void __init colibri_pxa270_eth_init(void)
0233 {
0234     platform_device_register(&colibri_pxa270_dm9000_device);
0235 }
0236 #else
0237 static inline void colibri_pxa270_eth_init(void) {}
0238 #endif
0239
0240 /******************************************************************************
0241  * Audio and Touchscreen
0242  ******************************************************************************/
0243 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
0244     defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
0245 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
0246     .reset_gpio = 95,
0247 };
0248
0249 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
0250     .irq        = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
0251 };
0252
0253 static struct platform_device colibri_pxa270_ucb1400_device = {
0254     .name       = "ucb1400_core",
0255     .id     = -1,
0256     .dev        = {
0257         .platform_data = &colibri_pxa270_ucb1400_pdata,
0258     },
0259 };
0260
0261 static void __init colibri_pxa270_tsc_init(void)
0262 {
0263     pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
0264     platform_device_register(&colibri_pxa270_ucb1400_device);
0265 }
0266 #else
0267 static inline void colibri_pxa270_tsc_init(void) {}
0268 #endif
0269
0270 static int colibri_pxa270_baseboard;
0271 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
0272
0273 static void __init colibri_pxa270_init(void)
0274 {
0275     pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
0276
0277     colibri_pxa270_nor_init();
0278     colibri_pxa270_eth_init();
0279     colibri_pxa270_tsc_init();
0280
0281     switch (colibri_pxa270_baseboard) {
0282     case COLIBRI_EVALBOARD:
0283         pxa2xx_mfp_config(ARRAY_AND_SIZE(
0284             colibri_pxa270_evalboard_pin_config));
0285         colibri_evalboard_init();
0286         break;
0287     case COLIBRI_PXA270_INCOME:
0288         pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
0289         colibri_pxa270_income_boardinit();
0290         break;
0291     default:
0292         printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
0293                 colibri_pxa270_baseboard);
0294     }
0295
0296     regulator_has_full_constraints();
0297 }
0298
0299 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
0300  * with the INCOME mach type or with COLIBRI and the kernel parameter
0301  * "colibri_pxa270_baseboard=1"
0302  */
0303 static void __init colibri_pxa270_income_init(void)
0304 {
0305     colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
0306     colibri_pxa270_init();
0307 }
0308
0309 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
0310     .atag_offset    = 0x100,
0311     .init_machine   = colibri_pxa270_init,
0312     .map_io     = pxa27x_map_io,
0313     .nr_irqs    = PXA_NR_IRQS,
0314     .init_irq   = pxa27x_init_irq,
0315     .handle_irq = pxa27x_handle_irq,
0316     .init_time  = pxa_timer_init,
0317     .restart    = pxa_restart,
0318 MACHINE_END
0319
0320 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
0321     .atag_offset    = 0x100,
0322     .init_machine   = colibri_pxa270_income_init,
0323     .map_io     = pxa27x_map_io,
0324     .nr_irqs    = PXA_NR_IRQS,
0325     .init_irq   = pxa27x_init_irq,
0326     .handle_irq = pxa27x_handle_irq,
0327     .init_time  = pxa_timer_init,
0328     .restart    = pxa_restart,
0329 MACHINE_END
0330