arch/arm/mach-omap1/board-h2.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-omap1/board-h2.c
   4  *
   5  * Board specific inits for OMAP-1610 H2
   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  * H2 specific changes and cleanup
  16  * Copyright (C) 2004 Nokia Corporation by Imre Deak <imre.deak@nokia.com>
  17  */
  18 #include <linux/gpio.h>
  19 #include <linux/gpio/machine.h>
  20 #include <linux/kernel.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/delay.h>
  23 #include <linux/i2c.h>
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/platnand.h>
  26 #include <linux/mtd/physmap.h>
  27 #include <linux/input.h>
  28 #include <linux/mfd/tps65010.h>
  29 #include <linux/smc91x.h>
  30 #include <linux/omapfb.h>
  31 #include <linux/omap-dma.h>
  32 #include <linux/platform_data/gpio-omap.h>
  33 #include <linux/platform_data/keypad-omap.h>
  34 #include <linux/leds.h>
  35
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39
  40 #include "tc.h"
  41 #include "mux.h"
  42 #include "flash.h"
  43 #include "hardware.h"
  44 #include "usb.h"
  45 #include "common.h"
  46 #include "board-h2.h"
  47
  48 /* The first 16 SoC GPIO lines are on this GPIO chip */
  49 #define OMAP_GPIO_LABEL                 "gpio-0-15"
  50
  51 /* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
  52 #define OMAP1610_ETHR_START             0x04000300
  53
  54 static const unsigned int h2_keymap[] = {
  55         KEY(0, 0, KEY_LEFT),
  56         KEY(1, 0, KEY_RIGHT),
  57         KEY(2, 0, KEY_3),
  58         KEY(3, 0, KEY_F10),
  59         KEY(4, 0, KEY_F5),
  60         KEY(5, 0, KEY_9),
  61         KEY(0, 1, KEY_DOWN),
  62         KEY(1, 1, KEY_UP),
  63         KEY(2, 1, KEY_2),
  64         KEY(3, 1, KEY_F9),
  65         KEY(4, 1, KEY_F7),
  66         KEY(5, 1, KEY_0),
  67         KEY(0, 2, KEY_ENTER),
  68         KEY(1, 2, KEY_6),
  69         KEY(2, 2, KEY_1),
  70         KEY(3, 2, KEY_F2),
  71         KEY(4, 2, KEY_F6),
  72         KEY(5, 2, KEY_HOME),
  73         KEY(0, 3, KEY_8),
  74         KEY(1, 3, KEY_5),
  75         KEY(2, 3, KEY_F12),
  76         KEY(3, 3, KEY_F3),
  77         KEY(4, 3, KEY_F8),
  78         KEY(5, 3, KEY_END),
  79         KEY(0, 4, KEY_7),
  80         KEY(1, 4, KEY_4),
  81         KEY(2, 4, KEY_F11),
  82         KEY(3, 4, KEY_F1),
  83         KEY(4, 4, KEY_F4),
  84         KEY(5, 4, KEY_ESC),
  85         KEY(0, 5, KEY_F13),
  86         KEY(1, 5, KEY_F14),
  87         KEY(2, 5, KEY_F15),
  88         KEY(3, 5, KEY_F16),
  89         KEY(4, 5, KEY_SLEEP),
  90 };
  91
  92 static struct mtd_partition h2_nor_partitions[] = {
  93         /* bootloader (U-Boot, etc) in first sector */
  94         {
  95               .name             = "bootloader",
  96               .offset           = 0,
  97               .size             = SZ_128K,
  98               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  99         },
 100         /* bootloader params in the next sector */
 101         {
 102               .name             = "params",
 103               .offset           = MTDPART_OFS_APPEND,
 104               .size             = SZ_128K,
 105               .mask_flags       = 0,
 106         },
 107         /* kernel */
 108         {
 109               .name             = "kernel",
 110               .offset           = MTDPART_OFS_APPEND,
 111               .size             = SZ_2M,
 112               .mask_flags       = 0
 113         },
 114         /* file system */
 115         {
 116               .name             = "filesystem",
 117               .offset           = MTDPART_OFS_APPEND,
 118               .size             = MTDPART_SIZ_FULL,
 119               .mask_flags       = 0
 120         }
 121 };
 122
 123 static struct physmap_flash_data h2_nor_data = {
 124         .width          = 2,
 125         .set_vpp        = omap1_set_vpp,
 126         .parts          = h2_nor_partitions,
 127         .nr_parts       = ARRAY_SIZE(h2_nor_partitions),
 128 };
 129
 130 static struct resource h2_nor_resource = {
 131         /* This is on CS3, wherever it's mapped */
 132         .flags          = IORESOURCE_MEM,
 133 };
 134
 135 static struct platform_device h2_nor_device = {
 136         .name           = "physmap-flash",
 137         .id             = 0,
 138         .dev            = {
 139                 .platform_data  = &h2_nor_data,
 140         },
 141         .num_resources  = 1,
 142         .resource       = &h2_nor_resource,
 143 };
 144
 145 static struct mtd_partition h2_nand_partitions[] = {
 146 #if 0
 147         /* REVISIT:  enable these partitions if you make NAND BOOT
 148          * work on your H2 (rev C or newer); published versions of
 149          * x-load only support P2 and H3.
 150          */
 151         {
 152                 .name           = "xloader",
 153                 .offset         = 0,
 154                 .size           = 64 * 1024,
 155                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 156         },
 157         {
 158                 .name           = "bootloader",
 159                 .offset         = MTDPART_OFS_APPEND,
 160                 .size           = 256 * 1024,
 161                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 162         },
 163         {
 164                 .name           = "params",
 165                 .offset         = MTDPART_OFS_APPEND,
 166                 .size           = 192 * 1024,
 167         },
 168         {
 169                 .name           = "kernel",
 170                 .offset         = MTDPART_OFS_APPEND,
 171                 .size           = 2 * SZ_1M,
 172         },
 173 #endif
 174         {
 175                 .name           = "filesystem",
 176                 .size           = MTDPART_SIZ_FULL,
 177                 .offset         = MTDPART_OFS_APPEND,
 178         },
 179 };
 180
 181 #define H2_NAND_RB_GPIO_PIN     62
 182
 183 static int h2_nand_dev_ready(struct nand_chip *chip)
 184 {
 185         return gpio_get_value(H2_NAND_RB_GPIO_PIN);
 186 }
 187
 188 static struct platform_nand_data h2_nand_platdata = {
 189         .chip   = {
 190                 .nr_chips               = 1,
 191                 .chip_offset            = 0,
 192                 .nr_partitions          = ARRAY_SIZE(h2_nand_partitions),
 193                 .partitions             = h2_nand_partitions,
 194                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 195         },
 196         .ctrl   = {
 197                 .cmd_ctrl       = omap1_nand_cmd_ctl,
 198                 .dev_ready      = h2_nand_dev_ready,
 199         },
 200 };
 201
 202 static struct resource h2_nand_resource = {
 203         .flags          = IORESOURCE_MEM,
 204 };
 205
 206 static struct platform_device h2_nand_device = {
 207         .name           = "gen_nand",
 208         .id             = 0,
 209         .dev            = {
 210                 .platform_data  = &h2_nand_platdata,
 211         },
 212         .num_resources  = 1,
 213         .resource       = &h2_nand_resource,
 214 };
 215
 216 static struct smc91x_platdata h2_smc91x_info = {
 217         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 218         .leda   = RPC_LED_100_10,
 219         .ledb   = RPC_LED_TX_RX,
 220 };
 221
 222 static struct resource h2_smc91x_resources[] = {
 223         [0] = {
 224                 .start  = OMAP1610_ETHR_START,          /* Physical */
 225                 .end    = OMAP1610_ETHR_START + 0xf,
 226                 .flags  = IORESOURCE_MEM,
 227         },
 228         [1] = {
 229                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 230         },
 231 };
 232
 233 static struct platform_device h2_smc91x_device = {
 234         .name           = "smc91x",
 235         .id             = 0,
 236         .dev    = {
 237                 .platform_data  = &h2_smc91x_info,
 238         },
 239         .num_resources  = ARRAY_SIZE(h2_smc91x_resources),
 240         .resource       = h2_smc91x_resources,
 241 };
 242
 243 static struct resource h2_kp_resources[] = {
 244         [0] = {
 245                 .start  = INT_KEYBOARD,
 246                 .end    = INT_KEYBOARD,
 247                 .flags  = IORESOURCE_IRQ,
 248         },
 249 };
 250
 251 static const struct matrix_keymap_data h2_keymap_data = {
 252         .keymap         = h2_keymap,
 253         .keymap_size    = ARRAY_SIZE(h2_keymap),
 254 };
 255
 256 static struct omap_kp_platform_data h2_kp_data = {
 257         .rows           = 8,
 258         .cols           = 8,
 259         .keymap_data    = &h2_keymap_data,
 260         .rep            = true,
 261         .delay          = 9,
 262         .dbounce        = true,
 263 };
 264
 265 static struct platform_device h2_kp_device = {
 266         .name           = "omap-keypad",
 267         .id             = -1,
 268         .dev            = {
 269                 .platform_data = &h2_kp_data,
 270         },
 271         .num_resources  = ARRAY_SIZE(h2_kp_resources),
 272         .resource       = h2_kp_resources,
 273 };
 274
 275 static const struct gpio_led h2_gpio_led_pins[] = {
 276         {
 277                 .name           = "h2:red",
 278                 .default_trigger = "heartbeat",
 279                 .gpio           = 3,
 280         },
 281         {
 282                 .name           = "h2:green",
 283                 .default_trigger = "cpu0",
 284                 .gpio           = OMAP_MPUIO(4),
 285         },
 286 };
 287
 288 static struct gpio_led_platform_data h2_gpio_led_data = {
 289         .leds           = h2_gpio_led_pins,
 290         .num_leds       = ARRAY_SIZE(h2_gpio_led_pins),
 291 };
 292
 293 static struct platform_device h2_gpio_leds = {
 294         .name   = "leds-gpio",
 295         .id     = -1,
 296         .dev    = {
 297                 .platform_data = &h2_gpio_led_data,
 298         },
 299 };
 300
 301 static struct platform_device *h2_devices[] __initdata = {
 302         &h2_nor_device,
 303         &h2_nand_device,
 304         &h2_smc91x_device,
 305         &h2_kp_device,
 306         &h2_gpio_leds,
 307 };
 308
 309 static void __init h2_init_smc91x(void)
 310 {
 311         if (gpio_request(0, "SMC91x irq") < 0) {
 312                 printk("Error requesting gpio 0 for smc91x irq\n");
 313                 return;
 314         }
 315 }
 316
 317 static int tps_setup(struct i2c_client *client, void *context)
 318 {
 319         if (!IS_BUILTIN(CONFIG_TPS65010))
 320                 return -ENOSYS;
 321
 322         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V |
 323                                 TPS_LDO1_ENABLE | TPS_VLDO1_3_0V);
 324
 325         return 0;
 326 }
 327
 328 static struct tps65010_board tps_board = {
 329         .base           = H2_TPS_GPIO_BASE,
 330         .outmask        = 0x0f,
 331         .setup          = tps_setup,
 332 };
 333
 334 static struct i2c_board_info __initdata h2_i2c_board_info[] = {
 335         {
 336                 I2C_BOARD_INFO("tps65010", 0x48),
 337                 .platform_data  = &tps_board,
 338         }, {
 339                 .type = "isp1301_omap",
 340                 .addr = 0x2d,
 341                 .dev_name = "isp1301",
 342         },
 343 };
 344
 345 static struct gpiod_lookup_table isp1301_gpiod_table = {
 346         .dev_id = "isp1301",
 347         .table = {
 348                 /* Active low since the irq triggers on falling edge */
 349                 GPIO_LOOKUP(OMAP_GPIO_LABEL, 2,
 350                             NULL, GPIO_ACTIVE_LOW),
 351                 { },
 352         },
 353 };
 354
 355 static struct omap_usb_config h2_usb_config __initdata = {
 356         /* usb1 has a Mini-AB port and external isp1301 transceiver */
 357         .otg            = 2,
 358
 359 #if IS_ENABLED(CONFIG_USB_OMAP)
 360         .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
 361         /* .hmc_mode    = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
 362 #elif   IS_ENABLED(CONFIG_USB_OHCI_HCD)
 363         /* needs OTG cable, or NONSTANDARD (B-to-MiniB) */
 364         .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
 365 #endif
 366
 367         .pins[1]        = 3,
 368 };
 369
 370 static const struct omap_lcd_config h2_lcd_config __initconst = {
 371         .ctrl_name      = "internal",
 372 };
 373
 374 static void __init h2_init(void)
 375 {
 376         h2_init_smc91x();
 377
 378         /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
 379          * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
 380          * notice whether a NAND chip is enabled at probe time.
 381          *
 382          * FIXME revC boards (and H3) support NAND-boot, with a dip switch to
 383          * put NOR on CS2B and NAND (which on H2 may be 16bit) on CS3.  Try
 384          * detecting that in code here, to avoid probing every possible flash
 385          * configuration...
 386          */
 387         h2_nor_resource.end = h2_nor_resource.start = omap_cs3_phys();
 388         h2_nor_resource.end += SZ_32M - 1;
 389
 390         h2_nand_resource.end = h2_nand_resource.start = OMAP_CS2B_PHYS;
 391         h2_nand_resource.end += SZ_4K - 1;
 392         BUG_ON(gpio_request(H2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
 393         gpio_direction_input(H2_NAND_RB_GPIO_PIN);
 394
 395         gpiod_add_lookup_table(&isp1301_gpiod_table);
 396
 397         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 398         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 399
 400         /* MMC:  card detect and WP */
 401         /* omap_cfg_reg(U19_ARMIO1); */         /* CD */
 402         omap_cfg_reg(BALLOUT_V8_ARMIO3);        /* WP */
 403
 404         /* Mux pins for keypad */
 405         omap_cfg_reg(F18_1610_KBC0);
 406         omap_cfg_reg(D20_1610_KBC1);
 407         omap_cfg_reg(D19_1610_KBC2);
 408         omap_cfg_reg(E18_1610_KBC3);
 409         omap_cfg_reg(C21_1610_KBC4);
 410         omap_cfg_reg(G18_1610_KBR0);
 411         omap_cfg_reg(F19_1610_KBR1);
 412         omap_cfg_reg(H14_1610_KBR2);
 413         omap_cfg_reg(E20_1610_KBR3);
 414         omap_cfg_reg(E19_1610_KBR4);
 415         omap_cfg_reg(N19_1610_KBR5);
 416
 417         /* GPIO based LEDs */
 418         omap_cfg_reg(P18_1610_GPIO3);
 419         omap_cfg_reg(MPUIO4);
 420
 421         h2_smc91x_resources[1].start = gpio_to_irq(0);
 422         h2_smc91x_resources[1].end = gpio_to_irq(0);
 423         platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
 424         omap_serial_init();
 425
 426         /* ISP1301 IRQ wired at M14 */
 427         omap_cfg_reg(M14_1510_GPIO2);
 428         h2_i2c_board_info[0].irq = gpio_to_irq(58);
 429         omap_register_i2c_bus(1, 100, h2_i2c_board_info,
 430                               ARRAY_SIZE(h2_i2c_board_info));
 431         omap1_usb_init(&h2_usb_config);
 432         h2_mmc_init();
 433
 434         omapfb_set_lcd_config(&h2_lcd_config);
 435 }
 436
 437 MACHINE_START(OMAP_H2, "TI-H2")
 438         /* Maintainer: Imre Deak <imre.deak@nokia.com> */
 439         .atag_offset    = 0x100,
 440         .map_io         = omap16xx_map_io,
 441         .init_early     = omap1_init_early,
 442         .init_irq       = omap1_init_irq,
 443         .handle_irq     = omap1_handle_irq,
 444         .init_machine   = h2_init,
 445         .init_late      = omap1_init_late,
 446         .init_time      = omap1_timer_init,
 447         .restart        = omap1_restart,
 448 MACHINE_END