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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 | // SPDX-License-Identifier: GPL-2.0-or-later /* * arch/arm/mach-ep93xx/vision_ep9307.c * Vision Engraving Systems EP9307 SoM support. * * Copyright (C) 2008-2011 Vision Engraving Systems * H Hartley Sweeten <hsweeten@visionengravers.com> */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/irq.h> #include <linux/gpio.h> #include <linux/gpio/machine.h> #include <linux/fb.h> #include <linux/io.h> #include <linux/mtd/partitions.h> #include <linux/i2c.h> #include <linux/platform_data/pca953x.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/spi/mmc_spi.h> #include <linux/mmc/host.h> #include <sound/cs4271.h> #include "hardware.h" #include <linux/platform_data/video-ep93xx.h> #include <linux/platform_data/spi-ep93xx.h> #include "gpio-ep93xx.h" #include <asm/mach-types.h> #include <asm/mach/map.h> #include <asm/mach/arch.h> #include "soc.h" /************************************************************************* * Static I/O mappings for the FPGA *************************************************************************/ #define VISION_PHYS_BASE EP93XX_CS7_PHYS_BASE #define VISION_VIRT_BASE 0xfebff000 static struct map_desc vision_io_desc[] __initdata = { { .virtual = VISION_VIRT_BASE, .pfn = __phys_to_pfn(VISION_PHYS_BASE), .length = SZ_4K, .type = MT_DEVICE, }, }; static void __init vision_map_io(void) { ep93xx_map_io(); iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc)); } /************************************************************************* * Ethernet *************************************************************************/ static struct ep93xx_eth_data vision_eth_data __initdata = { .phy_id = 1, }; /************************************************************************* * Framebuffer *************************************************************************/ #define VISION_LCD_ENABLE EP93XX_GPIO_LINE_EGPIO1 static int vision_lcd_setup(struct platform_device *pdev) { int err; err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH, dev_name(&pdev->dev)); if (err) return err; ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS | EP93XX_SYSCON_DEVCFG_RASONP3 | EP93XX_SYSCON_DEVCFG_EXVC); return 0; } static void vision_lcd_teardown(struct platform_device *pdev) { gpio_free(VISION_LCD_ENABLE); } static void vision_lcd_blank(int blank_mode, struct fb_info *info) { if (blank_mode) gpio_set_value(VISION_LCD_ENABLE, 0); else gpio_set_value(VISION_LCD_ENABLE, 1); } static struct ep93xxfb_mach_info ep93xxfb_info __initdata = { .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING, .setup = vision_lcd_setup, .teardown = vision_lcd_teardown, .blank = vision_lcd_blank, }; /************************************************************************* * GPIO Expanders *************************************************************************/ #define PCA9539_74_GPIO_BASE (EP93XX_GPIO_LINE_MAX + 1) #define PCA9539_75_GPIO_BASE (PCA9539_74_GPIO_BASE + 16) #define PCA9539_76_GPIO_BASE (PCA9539_75_GPIO_BASE + 16) #define PCA9539_77_GPIO_BASE (PCA9539_76_GPIO_BASE + 16) static struct pca953x_platform_data pca953x_74_gpio_data = { .gpio_base = PCA9539_74_GPIO_BASE, .irq_base = EP93XX_BOARD_IRQ(0), }; static struct pca953x_platform_data pca953x_75_gpio_data = { .gpio_base = PCA9539_75_GPIO_BASE, .irq_base = -1, }; static struct pca953x_platform_data pca953x_76_gpio_data = { .gpio_base = PCA9539_76_GPIO_BASE, .irq_base = -1, }; static struct pca953x_platform_data pca953x_77_gpio_data = { .gpio_base = PCA9539_77_GPIO_BASE, .irq_base = -1, }; /************************************************************************* * I2C Bus *************************************************************************/ static struct i2c_board_info vision_i2c_info[] __initdata = { { I2C_BOARD_INFO("isl1208", 0x6f), .irq = IRQ_EP93XX_EXT1, }, { I2C_BOARD_INFO("pca9539", 0x74), .platform_data = &pca953x_74_gpio_data, }, { I2C_BOARD_INFO("pca9539", 0x75), .platform_data = &pca953x_75_gpio_data, }, { I2C_BOARD_INFO("pca9539", 0x76), .platform_data = &pca953x_76_gpio_data, }, { I2C_BOARD_INFO("pca9539", 0x77), .platform_data = &pca953x_77_gpio_data, }, }; /************************************************************************* * SPI CS4271 Audio Codec *************************************************************************/ static struct cs4271_platform_data vision_cs4271_data = { .gpio_nreset = EP93XX_GPIO_LINE_H(2), }; /************************************************************************* * SPI Flash *************************************************************************/ static struct mtd_partition vision_spi_flash_partitions[] = { { .name = "SPI bootstrap", .offset = 0, .size = SZ_4K, }, { .name = "Bootstrap config", .offset = MTDPART_OFS_APPEND, .size = SZ_4K, }, { .name = "System config", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, }, }; static struct flash_platform_data vision_spi_flash_data = { .name = "SPI Flash", .parts = vision_spi_flash_partitions, .nr_parts = ARRAY_SIZE(vision_spi_flash_partitions), }; /************************************************************************* * SPI SD/MMC host *************************************************************************/ static struct mmc_spi_platform_data vision_spi_mmc_data = { .detect_delay = 100, .powerup_msecs = 100, .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, .caps2 = MMC_CAP2_RO_ACTIVE_HIGH, }; static struct gpiod_lookup_table vision_spi_mmc_gpio_table = { .dev_id = "mmc_spi.2", /* "mmc_spi @ CS2 */ .table = { /* Card detect */ GPIO_LOOKUP_IDX("B", 7, NULL, 0, GPIO_ACTIVE_LOW), /* Write protect */ GPIO_LOOKUP_IDX("F", 0, NULL, 1, GPIO_ACTIVE_HIGH), { }, }, }; /************************************************************************* * SPI Bus *************************************************************************/ static struct spi_board_info vision_spi_board_info[] __initdata = { { .modalias = "cs4271", .platform_data = &vision_cs4271_data, .max_speed_hz = 6000000, .bus_num = 0, .chip_select = 0, .mode = SPI_MODE_3, }, { .modalias = "sst25l", .platform_data = &vision_spi_flash_data, .max_speed_hz = 20000000, .bus_num = 0, .chip_select = 1, .mode = SPI_MODE_3, }, { .modalias = "mmc_spi", .platform_data = &vision_spi_mmc_data, .max_speed_hz = 20000000, .bus_num = 0, .chip_select = 2, .mode = SPI_MODE_3, }, }; static struct gpiod_lookup_table vision_spi_cs_gpio_table = { .dev_id = "spi0", .table = { GPIO_LOOKUP_IDX("A", 6, "cs", 0, GPIO_ACTIVE_LOW), GPIO_LOOKUP_IDX("A", 7, "cs", 1, GPIO_ACTIVE_LOW), GPIO_LOOKUP_IDX("G", 2, "cs", 2, GPIO_ACTIVE_LOW), { }, }, }; static struct ep93xx_spi_info vision_spi_master __initdata = { .use_dma = 1, }; /************************************************************************* * I2S Audio *************************************************************************/ static struct platform_device vision_audio_device = { .name = "edb93xx-audio", .id = -1, }; static void __init vision_register_i2s(void) { ep93xx_register_i2s(); platform_device_register(&vision_audio_device); } /************************************************************************* * Machine Initialization *************************************************************************/ static void __init vision_init_machine(void) { ep93xx_init_devices(); ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M); ep93xx_register_eth(&vision_eth_data, 1); ep93xx_register_fb(&ep93xxfb_info); ep93xx_register_pwm(1, 0); /* * Request the gpio expander's interrupt gpio line now to prevent * the kernel from doing a WARN in gpiolib:gpio_ensure_requested(). */ if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_DIR_IN, "pca9539:74")) pr_warn("cannot request interrupt gpio for pca9539:74\n"); vision_i2c_info[1].irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7)); ep93xx_register_i2c(vision_i2c_info, ARRAY_SIZE(vision_i2c_info)); gpiod_add_lookup_table(&vision_spi_mmc_gpio_table); gpiod_add_lookup_table(&vision_spi_cs_gpio_table); ep93xx_register_spi(&vision_spi_master, vision_spi_board_info, ARRAY_SIZE(vision_spi_board_info)); vision_register_i2s(); } MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307") /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ .atag_offset = 0x100, .nr_irqs = NR_EP93XX_IRQS + EP93XX_BOARD_IRQS, .map_io = vision_map_io, .init_irq = ep93xx_init_irq, .init_time = ep93xx_timer_init, .init_machine = vision_init_machine, .restart = ep93xx_restart, MACHINE_END |