arch/arm/mach-omap1/board-innovator.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-omap1/board-innovator.c
   4  *
   5  * Board specific inits for OMAP-1510 and OMAP-1610 Innovator
   6  *
   7  * Copyright (C) 2001 RidgeRun, Inc.
   8  * Author: Greg Lonnon <glonnon@ridgerun.com>
   9  *
  10  * Copyright (C) 2002 MontaVista Software, Inc.
  11  *
  12  * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
  13  * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
  14  */
  15 #include <linux/gpio.h>
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/delay.h>
  20 #include <linux/mtd/mtd.h>
  21 #include <linux/mtd/partitions.h>
  22 #include <linux/mtd/physmap.h>
  23 #include <linux/input.h>
  24 #include <linux/smc91x.h>
  25 #include <linux/omapfb.h>
  26 #include <linux/platform_data/keypad-omap.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include "tc.h"
  33 #include "mux.h"
  34 #include "flash.h"
  35 #include "hardware.h"
  36 #include "usb.h"
  37 #include "iomap.h"
  38 #include "common.h"
  39 #include "mmc.h"
  40
  41 /* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
  42 #define INNOVATOR1610_ETHR_START        0x04000300
  43
  44 static const unsigned int innovator_keymap[] = {
  45         KEY(0, 0, KEY_F1),
  46         KEY(3, 0, KEY_DOWN),
  47         KEY(1, 1, KEY_F2),
  48         KEY(2, 1, KEY_RIGHT),
  49         KEY(0, 2, KEY_F3),
  50         KEY(1, 2, KEY_F4),
  51         KEY(2, 2, KEY_UP),
  52         KEY(2, 3, KEY_ENTER),
  53         KEY(3, 3, KEY_LEFT),
  54 };
  55
  56 static struct mtd_partition innovator_partitions[] = {
  57         /* bootloader (U-Boot, etc) in first sector */
  58         {
  59               .name             = "bootloader",
  60               .offset           = 0,
  61               .size             = SZ_128K,
  62               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  63         },
  64         /* bootloader params in the next sector */
  65         {
  66               .name             = "params",
  67               .offset           = MTDPART_OFS_APPEND,
  68               .size             = SZ_128K,
  69               .mask_flags       = 0,
  70         },
  71         /* kernel */
  72         {
  73               .name             = "kernel",
  74               .offset           = MTDPART_OFS_APPEND,
  75               .size             = SZ_2M,
  76               .mask_flags       = 0
  77         },
  78         /* rest of flash1 is a file system */
  79         {
  80               .name             = "rootfs",
  81               .offset           = MTDPART_OFS_APPEND,
  82               .size             = SZ_16M - SZ_2M - 2 * SZ_128K,
  83               .mask_flags       = 0
  84         },
  85         /* file system */
  86         {
  87               .name             = "filesystem",
  88               .offset           = MTDPART_OFS_APPEND,
  89               .size             = MTDPART_SIZ_FULL,
  90               .mask_flags       = 0
  91         }
  92 };
  93
  94 static struct physmap_flash_data innovator_flash_data = {
  95         .width          = 2,
  96         .set_vpp        = omap1_set_vpp,
  97         .parts          = innovator_partitions,
  98         .nr_parts       = ARRAY_SIZE(innovator_partitions),
  99 };
 100
 101 static struct resource innovator_flash_resource = {
 102         .start          = OMAP_CS0_PHYS,
 103         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 104         .flags          = IORESOURCE_MEM,
 105 };
 106
 107 static struct platform_device innovator_flash_device = {
 108         .name           = "physmap-flash",
 109         .id             = 0,
 110         .dev            = {
 111                 .platform_data  = &innovator_flash_data,
 112         },
 113         .num_resources  = 1,
 114         .resource       = &innovator_flash_resource,
 115 };
 116
 117 static struct resource innovator_kp_resources[] = {
 118         [0] = {
 119                 .start  = INT_KEYBOARD,
 120                 .end    = INT_KEYBOARD,
 121                 .flags  = IORESOURCE_IRQ,
 122         },
 123 };
 124
 125 static const struct matrix_keymap_data innovator_keymap_data = {
 126         .keymap         = innovator_keymap,
 127         .keymap_size    = ARRAY_SIZE(innovator_keymap),
 128 };
 129
 130 static struct omap_kp_platform_data innovator_kp_data = {
 131         .rows           = 8,
 132         .cols           = 8,
 133         .keymap_data    = &innovator_keymap_data,
 134         .delay          = 4,
 135 };
 136
 137 static struct platform_device innovator_kp_device = {
 138         .name           = "omap-keypad",
 139         .id             = -1,
 140         .dev            = {
 141                 .platform_data = &innovator_kp_data,
 142         },
 143         .num_resources  = ARRAY_SIZE(innovator_kp_resources),
 144         .resource       = innovator_kp_resources,
 145 };
 146
 147 static struct smc91x_platdata innovator_smc91x_info = {
 148         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 149         .leda   = RPC_LED_100_10,
 150         .ledb   = RPC_LED_TX_RX,
 151 };
 152
 153 #ifdef CONFIG_ARCH_OMAP15XX
 154
 155 #include <linux/spi/spi.h>
 156 #include <linux/spi/ads7846.h>
 157
 158
 159 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 160 static struct map_desc innovator1510_io_desc[] __initdata = {
 161         {
 162                 .virtual        = OMAP1510_FPGA_BASE,
 163                 .pfn            = __phys_to_pfn(OMAP1510_FPGA_START),
 164                 .length         = OMAP1510_FPGA_SIZE,
 165                 .type           = MT_DEVICE
 166         }
 167 };
 168
 169 static struct resource innovator1510_smc91x_resources[] = {
 170         [0] = {
 171                 .start  = OMAP1510_FPGA_ETHR_START,     /* Physical */
 172                 .end    = OMAP1510_FPGA_ETHR_START + 0xf,
 173                 .flags  = IORESOURCE_MEM,
 174         },
 175         [1] = {
 176                 .start  = OMAP1510_INT_ETHER,
 177                 .end    = OMAP1510_INT_ETHER,
 178                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 179         },
 180 };
 181
 182 static struct platform_device innovator1510_smc91x_device = {
 183         .name           = "smc91x",
 184         .id             = 0,
 185         .dev    = {
 186                 .platform_data  = &innovator_smc91x_info,
 187         },
 188         .num_resources  = ARRAY_SIZE(innovator1510_smc91x_resources),
 189         .resource       = innovator1510_smc91x_resources,
 190 };
 191
 192 static struct platform_device innovator1510_lcd_device = {
 193         .name           = "lcd_inn1510",
 194         .id             = -1,
 195         .dev    = {
 196                 .platform_data = (void __force *)OMAP1510_FPGA_LCD_PANEL_CONTROL,
 197         }
 198 };
 199
 200 static struct platform_device innovator1510_spi_device = {
 201         .name           = "spi_inn1510",
 202         .id             = -1,
 203 };
 204
 205 static struct platform_device *innovator1510_devices[] __initdata = {
 206         &innovator_flash_device,
 207         &innovator1510_smc91x_device,
 208         &innovator_kp_device,
 209         &innovator1510_lcd_device,
 210         &innovator1510_spi_device,
 211 };
 212
 213 static int innovator_get_pendown_state(void)
 214 {
 215         return !(__raw_readb(OMAP1510_FPGA_TOUCHSCREEN) & (1 << 5));
 216 }
 217
 218 static const struct ads7846_platform_data innovator1510_ts_info = {
 219         .model                  = 7846,
 220         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 221         .x_plate_ohms           = 419,
 222         .y_plate_ohms           = 486,
 223         .get_pendown_state      = innovator_get_pendown_state,
 224 };
 225
 226 static struct spi_board_info __initdata innovator1510_boardinfo[] = { {
 227         /* FPGA (bus "10") CS0 has an ads7846e */
 228         .modalias               = "ads7846",
 229         .platform_data          = &innovator1510_ts_info,
 230         .irq                    = OMAP1510_INT_FPGA_TS,
 231         .max_speed_hz           = 120000 /* max sample rate at 3V */
 232                                         * 26 /* command + data + overhead */,
 233         .bus_num                = 10,
 234         .chip_select            = 0,
 235 } };
 236
 237 #endif /* CONFIG_ARCH_OMAP15XX */
 238
 239 #ifdef CONFIG_ARCH_OMAP16XX
 240
 241 static struct resource innovator1610_smc91x_resources[] = {
 242         [0] = {
 243                 .start  = INNOVATOR1610_ETHR_START,             /* Physical */
 244                 .end    = INNOVATOR1610_ETHR_START + 0xf,
 245                 .flags  = IORESOURCE_MEM,
 246         },
 247         [1] = {
 248                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 249         },
 250 };
 251
 252 static struct platform_device innovator1610_smc91x_device = {
 253         .name           = "smc91x",
 254         .id             = 0,
 255         .dev    = {
 256                 .platform_data  = &innovator_smc91x_info,
 257         },
 258         .num_resources  = ARRAY_SIZE(innovator1610_smc91x_resources),
 259         .resource       = innovator1610_smc91x_resources,
 260 };
 261
 262 static struct platform_device innovator1610_lcd_device = {
 263         .name           = "inn1610_lcd",
 264         .id             = -1,
 265 };
 266
 267 static struct platform_device *innovator1610_devices[] __initdata = {
 268         &innovator_flash_device,
 269         &innovator1610_smc91x_device,
 270         &innovator_kp_device,
 271         &innovator1610_lcd_device,
 272 };
 273
 274 #endif /* CONFIG_ARCH_OMAP16XX */
 275
 276 static void __init innovator_init_smc91x(void)
 277 {
 278         if (cpu_is_omap1510()) {
 279                 __raw_writeb(__raw_readb(OMAP1510_FPGA_RST) & ~1,
 280                            OMAP1510_FPGA_RST);
 281                 udelay(750);
 282         } else {
 283                 if (gpio_request(0, "SMC91x irq") < 0) {
 284                         printk("Error requesting gpio 0 for smc91x irq\n");
 285                         return;
 286                 }
 287         }
 288 }
 289
 290 #ifdef CONFIG_ARCH_OMAP15XX
 291 /*
 292  * Board specific gang-switched transceiver power on/off.
 293  */
 294 static int innovator_omap_ohci_transceiver_power(int on)
 295 {
 296         if (on)
 297                 __raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL)
 298                                 | ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
 299                                INNOVATOR_FPGA_CAM_USB_CONTROL);
 300         else
 301                 __raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL)
 302                                 & ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
 303                                INNOVATOR_FPGA_CAM_USB_CONTROL);
 304
 305         return 0;
 306 }
 307
 308 static struct omap_usb_config innovator1510_usb_config __initdata = {
 309         /* for bundled non-standard host and peripheral cables */
 310         .hmc_mode       = 4,
 311
 312         .register_host  = 1,
 313         .pins[1]        = 6,
 314         .pins[2]        = 6,            /* Conflicts with UART2 */
 315
 316         .register_dev   = 1,
 317         .pins[0]        = 2,
 318
 319         .transceiver_power = innovator_omap_ohci_transceiver_power,
 320 };
 321
 322 static const struct omap_lcd_config innovator1510_lcd_config __initconst = {
 323         .ctrl_name      = "internal",
 324 };
 325 #endif
 326
 327 #ifdef CONFIG_ARCH_OMAP16XX
 328 static struct omap_usb_config h2_usb_config __initdata = {
 329         /* usb1 has a Mini-AB port and external isp1301 transceiver */
 330         .otg            = 2,
 331
 332 #if IS_ENABLED(CONFIG_USB_OMAP)
 333         .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
 334         /* .hmc_mode    = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
 335 #elif   IS_ENABLED(CONFIG_USB_OHCI_HCD)
 336         /* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
 337         .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
 338 #endif
 339
 340         .pins[1]        = 3,
 341 };
 342
 343 static const struct omap_lcd_config innovator1610_lcd_config __initconst = {
 344         .ctrl_name      = "internal",
 345 };
 346 #endif
 347
 348 #if IS_ENABLED(CONFIG_MMC_OMAP)
 349
 350 static int mmc_set_power(struct device *dev, int slot, int power_on,
 351                                 int vdd)
 352 {
 353         if (power_on)
 354                 __raw_writeb(__raw_readb(OMAP1510_FPGA_POWER) | (1 << 3),
 355                                 OMAP1510_FPGA_POWER);
 356         else
 357                 __raw_writeb(__raw_readb(OMAP1510_FPGA_POWER) & ~(1 << 3),
 358                                 OMAP1510_FPGA_POWER);
 359
 360         return 0;
 361 }
 362
 363 /*
 364  * Innovator could use the following functions tested:
 365  * - mmc_get_wp that uses OMAP_MPUIO(3)
 366  * - mmc_get_cover_state that uses FPGA F4 UIO43
 367  */
 368 static struct omap_mmc_platform_data mmc1_data = {
 369         .nr_slots                       = 1,
 370         .slots[0]       = {
 371                 .set_power              = mmc_set_power,
 372                 .wires                  = 4,
 373                 .name                   = "mmcblk",
 374         },
 375 };
 376
 377 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
 378
 379 static void __init innovator_mmc_init(void)
 380 {
 381         mmc_data[0] = &mmc1_data;
 382         omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
 383 }
 384
 385 #else
 386 static inline void innovator_mmc_init(void)
 387 {
 388 }
 389 #endif
 390
 391 static void __init innovator_init(void)
 392 {
 393         if (cpu_is_omap1510())
 394                 omap1510_fpga_init_irq();
 395         innovator_init_smc91x();
 396
 397 #ifdef CONFIG_ARCH_OMAP15XX
 398         if (cpu_is_omap1510()) {
 399                 unsigned char reg;
 400
 401                 /* mux pins for uarts */
 402                 omap_cfg_reg(UART1_TX);
 403                 omap_cfg_reg(UART1_RTS);
 404                 omap_cfg_reg(UART2_TX);
 405                 omap_cfg_reg(UART2_RTS);
 406                 omap_cfg_reg(UART3_TX);
 407                 omap_cfg_reg(UART3_RX);
 408
 409                 reg = __raw_readb(OMAP1510_FPGA_POWER);
 410                 reg |= OMAP1510_FPGA_PCR_COM1_EN;
 411                 __raw_writeb(reg, OMAP1510_FPGA_POWER);
 412                 udelay(10);
 413
 414                 reg = __raw_readb(OMAP1510_FPGA_POWER);
 415                 reg |= OMAP1510_FPGA_PCR_COM2_EN;
 416                 __raw_writeb(reg, OMAP1510_FPGA_POWER);
 417                 udelay(10);
 418
 419                 platform_add_devices(innovator1510_devices, ARRAY_SIZE(innovator1510_devices));
 420                 spi_register_board_info(innovator1510_boardinfo,
 421                                 ARRAY_SIZE(innovator1510_boardinfo));
 422         }
 423 #endif
 424 #ifdef CONFIG_ARCH_OMAP16XX
 425         if (!cpu_is_omap1510()) {
 426                 innovator1610_smc91x_resources[1].start = gpio_to_irq(0);
 427                 innovator1610_smc91x_resources[1].end = gpio_to_irq(0);
 428                 platform_add_devices(innovator1610_devices, ARRAY_SIZE(innovator1610_devices));
 429         }
 430 #endif
 431
 432 #ifdef CONFIG_ARCH_OMAP15XX
 433         if (cpu_is_omap1510()) {
 434                 omap1_usb_init(&innovator1510_usb_config);
 435                 omapfb_set_lcd_config(&innovator1510_lcd_config);
 436         }
 437 #endif
 438 #ifdef CONFIG_ARCH_OMAP16XX
 439         if (cpu_is_omap1610()) {
 440                 omap1_usb_init(&h2_usb_config);
 441                 omapfb_set_lcd_config(&innovator1610_lcd_config);
 442         }
 443 #endif
 444         omap_serial_init();
 445         omap_register_i2c_bus(1, 100, NULL, 0);
 446         innovator_mmc_init();
 447 }
 448
 449 /*
 450  * REVISIT: Assume 15xx for now, we don't want to do revision check
 451  * until later on. The right way to fix this is to set up a different
 452  * machine_id for 16xx Innovator, or use device tree.
 453  */
 454 static void __init innovator_map_io(void)
 455 {
 456 #ifdef CONFIG_ARCH_OMAP15XX
 457         omap15xx_map_io();
 458
 459         iotable_init(innovator1510_io_desc, ARRAY_SIZE(innovator1510_io_desc));
 460         udelay(10);     /* Delay needed for FPGA */
 461
 462         /* Dump the Innovator FPGA rev early - useful info for support. */
 463         pr_debug("Innovator FPGA Rev %d.%d Board Rev %d\n",
 464                         __raw_readb(OMAP1510_FPGA_REV_HIGH),
 465                         __raw_readb(OMAP1510_FPGA_REV_LOW),
 466                         __raw_readb(OMAP1510_FPGA_BOARD_REV));
 467 #endif
 468 }
 469
 470 MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
 471         /* Maintainer: MontaVista Software, Inc. */
 472         .atag_offset    = 0x100,
 473         .map_io         = innovator_map_io,
 474         .init_early     = omap1_init_early,
 475         .init_irq       = omap1_init_irq,
 476         .handle_irq     = omap1_handle_irq,
 477         .init_machine   = innovator_init,
 478         .init_late      = omap1_init_late,
 479         .init_time      = omap1_timer_init,
 480         .restart        = omap1_restart,
 481 MACHINE_END