Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2012 |
| 3 | * Ивайло Димитров <freemangordon@abv.bg> |
| 4 | * |
| 5 | * (C) Copyright 2011-2012 |
| 6 | * Pali Rohár <pali.rohar@gmail.com> |
| 7 | * |
| 8 | * (C) Copyright 2010 |
| 9 | * Alistair Buxton <a.j.buxton@gmail.com> |
| 10 | * |
| 11 | * Derived from Beagle Board and 3430 SDP code: |
| 12 | * (C) Copyright 2004-2008 |
| 13 | * Texas Instruments, <www.ti.com> |
| 14 | * |
| 15 | * Author : |
| 16 | * Sunil Kumar <sunilsaini05@gmail.com> |
| 17 | * Shashi Ranjan <shashiranjanmca05@gmail.com> |
| 18 | * |
| 19 | * Richard Woodruff <r-woodruff2@ti.com> |
| 20 | * Syed Mohammed Khasim <khasim@ti.com> |
| 21 | * |
Wolfgang Denk | 1a45966 | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 22 | * SPDX-License-Identifier: GPL-2.0+ |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 23 | */ |
| 24 | |
| 25 | #include <common.h> |
| 26 | #include <watchdog.h> |
| 27 | #include <malloc.h> |
| 28 | #include <twl4030.h> |
| 29 | #include <i2c.h> |
| 30 | #include <video_fb.h> |
| 31 | #include <asm/io.h> |
| 32 | #include <asm/setup.h> |
| 33 | #include <asm/bitops.h> |
| 34 | #include <asm/mach-types.h> |
| 35 | #include <asm/arch/mux.h> |
| 36 | #include <asm/arch/sys_proto.h> |
| 37 | #include <asm/arch/mmc_host_def.h> |
| 38 | |
| 39 | #include "rx51.h" |
| 40 | #include "tag_omap.h" |
| 41 | |
| 42 | DECLARE_GLOBAL_DATA_PTR; |
| 43 | |
| 44 | GraphicDevice gdev; |
| 45 | |
| 46 | const omap3_sysinfo sysinfo = { |
| 47 | DDR_STACKED, |
| 48 | "Nokia RX-51", |
| 49 | "OneNAND" |
| 50 | }; |
| 51 | |
| 52 | /* This structure contains default omap tags needed for booting Maemo 5 */ |
| 53 | static struct tag_omap omap[] = { |
| 54 | OMAP_TAG_UART_CONFIG(0x04), |
| 55 | OMAP_TAG_SERIAL_CONSOLE_CONFIG(0x03, 0x01C200), |
| 56 | OMAP_TAG_LCD_CONFIG("acx565akm", "internal", 90, 0x18), |
| 57 | OMAP_TAG_GPIO_SWITCH_CONFIG("cam_focus", 0x44, 0x1, 0x2, 0x0), |
| 58 | OMAP_TAG_GPIO_SWITCH_CONFIG("cam_launch", 0x45, 0x1, 0x2, 0x0), |
| 59 | OMAP_TAG_GPIO_SWITCH_CONFIG("cam_shutter", 0x6e, 0x1, 0x0, 0x0), |
| 60 | OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_apeslpx", 0x46, 0x2, 0x2, 0x0), |
| 61 | OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_bsi", 0x9d, 0x2, 0x2, 0x0), |
| 62 | OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_en", 0x4a, 0x2, 0x2, 0x0), |
| 63 | OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_rst", 0x4b, 0x6, 0x2, 0x0), |
| 64 | OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_rst_rq", 0x49, 0x6, 0x2, 0x0), |
| 65 | OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_wddis", 0x0d, 0x2, 0x2, 0x0), |
| 66 | OMAP_TAG_GPIO_SWITCH_CONFIG("headphone", 0xb1, 0x1, 0x1, 0x0), |
| 67 | OMAP_TAG_GPIO_SWITCH_CONFIG("kb_lock", 0x71, 0x1, 0x0, 0x0), |
| 68 | OMAP_TAG_GPIO_SWITCH_CONFIG("proximity", 0x59, 0x0, 0x0, 0x0), |
| 69 | OMAP_TAG_GPIO_SWITCH_CONFIG("sleep_ind", 0xa2, 0x2, 0x2, 0x0), |
| 70 | OMAP_TAG_GPIO_SWITCH_CONFIG("slide", GPIO_SLIDE, 0x0, 0x0, 0x0), |
| 71 | OMAP_TAG_WLAN_CX3110X_CONFIG(0x25, 0xff, 87, 42, -1), |
| 72 | OMAP_TAG_PARTITION_CONFIG(PART1_NAME, PART1_SIZE * PART1_MULL, |
| 73 | PART1_OFFS, PART1_MASK), |
| 74 | OMAP_TAG_PARTITION_CONFIG(PART2_NAME, PART2_SIZE * PART2_MULL, |
| 75 | PART2_OFFS, PART2_MASK), |
| 76 | OMAP_TAG_PARTITION_CONFIG(PART3_NAME, PART3_SIZE * PART3_MULL, |
| 77 | PART3_OFFS, PART3_MASK), |
| 78 | OMAP_TAG_PARTITION_CONFIG(PART4_NAME, PART4_SIZE * PART4_MULL, |
| 79 | PART4_OFFS, PART4_MASK), |
| 80 | OMAP_TAG_PARTITION_CONFIG(PART5_NAME, PART5_SIZE * PART5_MULL, |
| 81 | PART5_OFFS, PART5_MASK), |
| 82 | OMAP_TAG_PARTITION_CONFIG(PART6_NAME, PART6_SIZE * PART6_MULL, |
| 83 | PART6_OFFS, PART6_MASK), |
| 84 | OMAP_TAG_BOOT_REASON_CONFIG("pwr_key"), |
| 85 | OMAP_TAG_VERSION_STR_CONFIG("product", "RX-51"), |
| 86 | OMAP_TAG_VERSION_STR_CONFIG("hw-build", "2101"), |
| 87 | OMAP_TAG_VERSION_STR_CONFIG("nolo", "1.4.14"), |
| 88 | OMAP_TAG_VERSION_STR_CONFIG("boot-mode", "normal"), |
| 89 | { } |
| 90 | }; |
| 91 | |
| 92 | static char *boot_reason_ptr; |
| 93 | static char *hw_build_ptr; |
| 94 | static char *nolo_version_ptr; |
| 95 | static char *boot_mode_ptr; |
| 96 | |
| 97 | /* |
| 98 | * Routine: init_omap_tags |
| 99 | * Description: Initialize pointers to values in tag_omap |
| 100 | */ |
| 101 | static void init_omap_tags(void) |
| 102 | { |
| 103 | char *component; |
| 104 | char *version; |
| 105 | int i = 0; |
| 106 | while (omap[i].hdr.tag) { |
| 107 | switch (omap[i].hdr.tag) { |
| 108 | case OMAP_TAG_BOOT_REASON: |
| 109 | boot_reason_ptr = omap[i].u.boot_reason.reason_str; |
| 110 | break; |
| 111 | case OMAP_TAG_VERSION_STR: |
| 112 | component = omap[i].u.version.component; |
| 113 | version = omap[i].u.version.version; |
| 114 | if (strcmp(component, "hw-build") == 0) |
| 115 | hw_build_ptr = version; |
| 116 | else if (strcmp(component, "nolo") == 0) |
| 117 | nolo_version_ptr = version; |
| 118 | else if (strcmp(component, "boot-mode") == 0) |
| 119 | boot_mode_ptr = version; |
| 120 | break; |
| 121 | default: |
| 122 | break; |
| 123 | } |
| 124 | i++; |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | static void reuse_omap_atags(struct tag_omap *t) |
| 129 | { |
| 130 | char *component; |
| 131 | char *version; |
| 132 | while (t->hdr.tag) { |
| 133 | switch (t->hdr.tag) { |
| 134 | case OMAP_TAG_BOOT_REASON: |
| 135 | memset(boot_reason_ptr, 0, 12); |
| 136 | strcpy(boot_reason_ptr, t->u.boot_reason.reason_str); |
| 137 | break; |
| 138 | case OMAP_TAG_VERSION_STR: |
| 139 | component = t->u.version.component; |
| 140 | version = t->u.version.version; |
| 141 | if (strcmp(component, "hw-build") == 0) { |
| 142 | memset(hw_build_ptr, 0, 12); |
| 143 | strcpy(hw_build_ptr, version); |
| 144 | } else if (strcmp(component, "nolo") == 0) { |
| 145 | memset(nolo_version_ptr, 0, 12); |
| 146 | strcpy(nolo_version_ptr, version); |
| 147 | } else if (strcmp(component, "boot-mode") == 0) { |
| 148 | memset(boot_mode_ptr, 0, 12); |
| 149 | strcpy(boot_mode_ptr, version); |
| 150 | } |
| 151 | break; |
| 152 | default: |
| 153 | break; |
| 154 | } |
| 155 | t = tag_omap_next(t); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | /* |
| 160 | * Routine: reuse_atags |
| 161 | * Description: Reuse atags from previous bootloader. |
| 162 | * Reuse only only HW build, boot reason, boot mode and nolo |
| 163 | */ |
| 164 | static void reuse_atags(void) |
| 165 | { |
| 166 | struct tag *t = (struct tag *)gd->bd->bi_boot_params; |
| 167 | |
| 168 | /* First tag must be ATAG_CORE */ |
| 169 | if (t->hdr.tag != ATAG_CORE) |
| 170 | return; |
| 171 | |
| 172 | if (!boot_reason_ptr || !hw_build_ptr) |
| 173 | return; |
| 174 | |
| 175 | /* Last tag must be ATAG_NONE */ |
| 176 | while (t->hdr.tag != ATAG_NONE) { |
| 177 | switch (t->hdr.tag) { |
| 178 | case ATAG_REVISION: |
| 179 | memset(hw_build_ptr, 0, 12); |
| 180 | sprintf(hw_build_ptr, "%x", t->u.revision.rev); |
| 181 | break; |
| 182 | case ATAG_BOARD: |
| 183 | reuse_omap_atags((struct tag_omap *)&t->u); |
| 184 | break; |
| 185 | default: |
| 186 | break; |
| 187 | } |
| 188 | t = tag_next(t); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | /* |
| 193 | * Routine: board_init |
| 194 | * Description: Early hardware init. |
| 195 | */ |
| 196 | int board_init(void) |
| 197 | { |
| 198 | /* in SRAM or SDRAM, finish GPMC */ |
| 199 | gpmc_init(); |
| 200 | /* boot param addr */ |
| 201 | gd->bd->bi_boot_params = OMAP34XX_SDRC_CS0 + 0x100; |
| 202 | return 0; |
| 203 | } |
| 204 | |
| 205 | /* |
| 206 | * Routine: get_board_revision |
| 207 | * Description: Return board revision. |
| 208 | */ |
| 209 | u32 get_board_rev(void) |
| 210 | { |
| 211 | return simple_strtol(hw_build_ptr, NULL, 16); |
| 212 | } |
| 213 | |
| 214 | /* |
| 215 | * Routine: setup_board_tags |
| 216 | * Description: Append board specific boot tags. |
| 217 | */ |
| 218 | void setup_board_tags(struct tag **in_params) |
| 219 | { |
| 220 | int setup_console_atag; |
| 221 | char *setup_boot_reason_atag; |
| 222 | char *setup_boot_mode_atag; |
| 223 | char *str; |
| 224 | int i; |
| 225 | int size; |
| 226 | int total_size; |
| 227 | struct tag *params; |
| 228 | struct tag_omap *t; |
| 229 | |
| 230 | params = (struct tag *)gd->bd->bi_boot_params; |
| 231 | |
| 232 | params->u.core.flags = 0x0; |
| 233 | params->u.core.pagesize = 0x1000; |
| 234 | params->u.core.rootdev = 0x0; |
| 235 | |
| 236 | /* append omap atag only if env setup_omap_atag is set to 1 */ |
| 237 | str = getenv("setup_omap_atag"); |
| 238 | if (!str || str[0] != '1') |
| 239 | return; |
| 240 | |
| 241 | str = getenv("setup_console_atag"); |
| 242 | if (str && str[0] == '1') |
| 243 | setup_console_atag = 1; |
| 244 | else |
| 245 | setup_console_atag = 0; |
| 246 | |
| 247 | setup_boot_reason_atag = getenv("setup_boot_reason_atag"); |
| 248 | setup_boot_mode_atag = getenv("setup_boot_mode_atag"); |
| 249 | |
| 250 | params = *in_params; |
| 251 | t = (struct tag_omap *)¶ms->u; |
| 252 | total_size = sizeof(struct tag_header); |
| 253 | |
| 254 | for (i = 0; omap[i].hdr.tag; i++) { |
| 255 | |
| 256 | /* skip serial console tag */ |
| 257 | if (!setup_console_atag && |
| 258 | omap[i].hdr.tag == OMAP_TAG_SERIAL_CONSOLE) |
| 259 | continue; |
| 260 | |
| 261 | size = omap[i].hdr.size + sizeof(struct tag_omap_header); |
| 262 | memcpy(t, &omap[i], size); |
| 263 | |
| 264 | /* set uart tag to 0 - disable serial console */ |
| 265 | if (!setup_console_atag && omap[i].hdr.tag == OMAP_TAG_UART) |
| 266 | t->u.uart.enabled_uarts = 0; |
| 267 | |
| 268 | /* change boot reason */ |
| 269 | if (setup_boot_reason_atag && |
| 270 | omap[i].hdr.tag == OMAP_TAG_BOOT_REASON) { |
| 271 | memset(t->u.boot_reason.reason_str, 0, 12); |
| 272 | strcpy(t->u.boot_reason.reason_str, |
| 273 | setup_boot_reason_atag); |
| 274 | } |
| 275 | |
| 276 | /* change boot mode */ |
| 277 | if (setup_boot_mode_atag && |
| 278 | omap[i].hdr.tag == OMAP_TAG_VERSION_STR && |
| 279 | strcmp(omap[i].u.version.component, "boot-mode") == 0) { |
| 280 | memset(t->u.version.version, 0, 12); |
| 281 | strcpy(t->u.version.version, setup_boot_mode_atag); |
| 282 | } |
| 283 | |
| 284 | total_size += size; |
| 285 | t = tag_omap_next(t); |
| 286 | |
| 287 | } |
| 288 | |
| 289 | params->hdr.tag = ATAG_BOARD; |
| 290 | params->hdr.size = total_size >> 2; |
| 291 | params = tag_next(params); |
| 292 | |
| 293 | *in_params = params; |
| 294 | } |
| 295 | |
| 296 | /* |
| 297 | * Routine: video_hw_init |
| 298 | * Description: Set up the GraphicDevice depending on sys_boot. |
| 299 | */ |
| 300 | void *video_hw_init(void) |
| 301 | { |
| 302 | /* fill in Graphic Device */ |
| 303 | gdev.frameAdrs = 0x8f9c0000; |
| 304 | gdev.winSizeX = 800; |
| 305 | gdev.winSizeY = 480; |
| 306 | gdev.gdfBytesPP = 2; |
| 307 | gdev.gdfIndex = GDF_16BIT_565RGB; |
| 308 | memset((void *)gdev.frameAdrs, 0, 0xbb800); |
| 309 | return (void *) &gdev; |
| 310 | } |
| 311 | |
| 312 | /* |
| 313 | * Routine: twl4030_regulator_set_mode |
| 314 | * Description: Set twl4030 regulator mode over i2c powerbus. |
| 315 | */ |
| 316 | static void twl4030_regulator_set_mode(u8 id, u8 mode) |
| 317 | { |
| 318 | u16 msg = MSG_SINGULAR(DEV_GRP_P1, id, mode); |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 319 | twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, |
| 320 | TWL4030_PM_MASTER_PB_WORD_MSB, msg >> 8); |
| 321 | twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, |
| 322 | TWL4030_PM_MASTER_PB_WORD_LSB, msg & 0xff); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | static void omap3_emu_romcode_call(u32 service_id, u32 *parameters) |
| 326 | { |
| 327 | u32 i, num_params = *parameters; |
| 328 | u32 *sram_scratch_space = (u32 *)OMAP3_PUBLIC_SRAM_SCRATCH_AREA; |
| 329 | |
| 330 | /* |
| 331 | * copy the parameters to an un-cached area to avoid coherency |
| 332 | * issues |
| 333 | */ |
| 334 | for (i = 0; i < num_params; i++) { |
| 335 | __raw_writel(*parameters, sram_scratch_space); |
| 336 | parameters++; |
| 337 | sram_scratch_space++; |
| 338 | } |
| 339 | |
| 340 | /* Now make the PPA call */ |
| 341 | do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA); |
| 342 | } |
| 343 | |
Nishanth Menon | cdef0b3 | 2015-03-09 17:12:09 -0500 | [diff] [blame] | 344 | void omap3_set_aux_cr_secure(u32 acr) |
| 345 | { |
| 346 | struct emu_hal_params_rx51 emu_romcode_params = { 0, }; |
| 347 | |
| 348 | emu_romcode_params.num_params = 2; |
| 349 | emu_romcode_params.param1 = acr; |
| 350 | |
| 351 | omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR, |
| 352 | (u32 *)&emu_romcode_params); |
| 353 | } |
| 354 | |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 355 | /* |
| 356 | * Routine: omap3_update_aux_cr_secure_rx51 |
| 357 | * Description: Modify the contents Auxiliary Control Register. |
| 358 | * Parameters: |
| 359 | * set_bits - bits to set in ACR |
| 360 | * clr_bits - bits to clear in ACR |
| 361 | */ |
| 362 | static void omap3_update_aux_cr_secure_rx51(u32 set_bits, u32 clear_bits) |
| 363 | { |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 364 | u32 acr; |
| 365 | |
| 366 | /* Read ACR */ |
| 367 | asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); |
| 368 | acr &= ~clear_bits; |
| 369 | acr |= set_bits; |
Nishanth Menon | cdef0b3 | 2015-03-09 17:12:09 -0500 | [diff] [blame] | 370 | omap3_set_aux_cr_secure(acr); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | /* |
| 374 | * Routine: misc_init_r |
| 375 | * Description: Configure board specific parts. |
| 376 | */ |
| 377 | int misc_init_r(void) |
| 378 | { |
| 379 | char buf[12]; |
| 380 | u8 state; |
| 381 | |
| 382 | /* reset lp5523 led */ |
| 383 | i2c_set_bus_num(1); |
| 384 | state = 0xff; |
| 385 | i2c_write(0x32, 0x3d, 1, &state, 1); |
| 386 | i2c_set_bus_num(0); |
| 387 | |
| 388 | /* initialize twl4030 power managment */ |
| 389 | twl4030_power_init(); |
| 390 | |
| 391 | /* set VSIM to 1.8V */ |
| 392 | twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED, |
| 393 | TWL4030_PM_RECEIVER_VSIM_VSEL_18, |
| 394 | TWL4030_PM_RECEIVER_VSIM_DEV_GRP, |
| 395 | TWL4030_PM_RECEIVER_DEV_GRP_P1); |
| 396 | |
| 397 | /* store I2C access state */ |
Nishanth Menon | b29c2f0 | 2013-03-26 05:20:50 +0000 | [diff] [blame] | 398 | twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG, |
| 399 | &state); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 400 | |
| 401 | /* enable I2C access to powerbus (needed for twl4030 regulator) */ |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 402 | twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG, |
| 403 | 0x02); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 404 | |
| 405 | /* set VAUX3, VSIM and VMMC1 state to active - enable eMMC memory */ |
| 406 | twl4030_regulator_set_mode(RES_VAUX3, RES_STATE_ACTIVE); |
| 407 | twl4030_regulator_set_mode(RES_VSIM, RES_STATE_ACTIVE); |
| 408 | twl4030_regulator_set_mode(RES_VMMC1, RES_STATE_ACTIVE); |
| 409 | |
| 410 | /* restore I2C access state */ |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 411 | twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG, |
| 412 | state); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 413 | |
| 414 | /* set env variable attkernaddr for relocated kernel */ |
| 415 | sprintf(buf, "%#x", KERNEL_ADDRESS); |
| 416 | setenv("attkernaddr", buf); |
| 417 | |
| 418 | /* initialize omap tags */ |
| 419 | init_omap_tags(); |
| 420 | |
| 421 | /* reuse atags from previous bootloader */ |
| 422 | reuse_atags(); |
| 423 | |
| 424 | dieid_num_r(); |
| 425 | print_cpuinfo(); |
| 426 | |
| 427 | /* |
| 428 | * Cortex-A8(r1p0..r1p2) errata 430973 workaround |
| 429 | * Set IBE bit in Auxiliary Control Register |
Pali Rohár | 8cda413 | 2015-01-08 10:11:40 +0100 | [diff] [blame] | 430 | * |
| 431 | * Call this routine only on real secure device |
| 432 | * Qemu does not implement secure PPA and crash |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 433 | */ |
Pali Rohár | 8cda413 | 2015-01-08 10:11:40 +0100 | [diff] [blame] | 434 | if (get_device_type() == HS_DEVICE) |
| 435 | omap3_update_aux_cr_secure_rx51(1 << 6, 0); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 436 | |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | /* |
| 441 | * Routine: set_muxconf_regs |
| 442 | * Description: Setting up the configuration Mux registers specific to the |
| 443 | * hardware. Many pins need to be moved from protect to primary |
| 444 | * mode. |
| 445 | */ |
| 446 | void set_muxconf_regs(void) |
| 447 | { |
| 448 | MUX_RX51(); |
| 449 | } |
| 450 | |
| 451 | static unsigned long int twl_wd_time; /* last time of watchdog reset */ |
| 452 | static unsigned long int twl_i2c_lock; |
| 453 | |
| 454 | /* |
| 455 | * Routine: hw_watchdog_reset |
| 456 | * Description: Reset timeout of twl4030 watchdog. |
| 457 | */ |
| 458 | void hw_watchdog_reset(void) |
| 459 | { |
| 460 | u8 timeout = 0; |
| 461 | |
| 462 | /* do not reset watchdog too often - max every 4s */ |
| 463 | if (get_timer(twl_wd_time) < 4 * CONFIG_SYS_HZ) |
| 464 | return; |
| 465 | |
| 466 | /* localy lock twl4030 i2c bus */ |
| 467 | if (test_and_set_bit(0, &twl_i2c_lock)) |
| 468 | return; |
| 469 | |
| 470 | /* read actual watchdog timeout */ |
Nishanth Menon | b29c2f0 | 2013-03-26 05:20:50 +0000 | [diff] [blame] | 471 | twl4030_i2c_read_u8(TWL4030_CHIP_PM_RECEIVER, |
| 472 | TWL4030_PM_RECEIVER_WATCHDOG_CFG, &timeout); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 473 | |
| 474 | /* timeout 0 means watchdog is disabled */ |
| 475 | /* reset watchdog timeout to 31s (maximum) */ |
| 476 | if (timeout != 0) |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 477 | twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, |
| 478 | TWL4030_PM_RECEIVER_WATCHDOG_CFG, 31); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 479 | |
| 480 | /* store last watchdog reset time */ |
| 481 | twl_wd_time = get_timer(0); |
| 482 | |
| 483 | /* localy unlock twl4030 i2c bus */ |
| 484 | test_and_clear_bit(0, &twl_i2c_lock); |
| 485 | } |
| 486 | |
| 487 | /* |
| 488 | * TWL4030 keypad handler for cfb_console |
| 489 | */ |
| 490 | |
| 491 | static const char keymap[] = { |
| 492 | /* normal */ |
| 493 | 'q', 'o', 'p', ',', '\b', 0, 'a', 's', |
| 494 | 'w', 'd', 'f', 'g', 'h', 'j', 'k', 'l', |
| 495 | 'e', '.', 0, '\r', 0, 'z', 'x', 'c', |
| 496 | 'r', 'v', 'b', 'n', 'm', ' ', ' ', 0, |
| 497 | 't', 0, 0, 0, 0, 0, 0, 0, |
| 498 | 'y', 0, 0, 0, 0, 0, 0, 0, |
| 499 | 'u', 0, 0, 0, 0, 0, 0, 0, |
| 500 | 'i', 5, 6, 0, 0, 0, 0, 0, |
| 501 | /* fn */ |
| 502 | '1', '9', '0', '=', '\b', 0, '*', '+', |
| 503 | '2', '#', '-', '_', '(', ')', '&', '!', |
| 504 | '3', '?', '^', '\r', 0, 156, '$', 238, |
| 505 | '4', '/', '\\', '"', '\'', '@', 0, '<', |
| 506 | '5', '|', '>', 0, 0, 0, 0, 0, |
| 507 | '6', 0, 0, 0, 0, 0, 0, 0, |
| 508 | '7', 0, 0, 0, 0, 0, 0, 0, |
| 509 | '8', 16, 17, 0, 0, 0, 0, 0, |
| 510 | }; |
| 511 | |
| 512 | static u8 keys[8]; |
| 513 | static u8 old_keys[8] = {0, 0, 0, 0, 0, 0, 0, 0}; |
| 514 | #define KEYBUF_SIZE 32 |
| 515 | static u8 keybuf[KEYBUF_SIZE]; |
| 516 | static u8 keybuf_head; |
| 517 | static u8 keybuf_tail; |
| 518 | |
| 519 | /* |
| 520 | * Routine: rx51_kp_init |
| 521 | * Description: Initialize HW keyboard. |
| 522 | */ |
| 523 | int rx51_kp_init(void) |
| 524 | { |
| 525 | int ret = 0; |
| 526 | u8 ctrl; |
Nishanth Menon | b29c2f0 | 2013-03-26 05:20:50 +0000 | [diff] [blame] | 527 | ret = twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD, |
| 528 | TWL4030_KEYPAD_KEYP_CTRL_REG, &ctrl); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 529 | |
| 530 | if (ret) |
| 531 | return ret; |
| 532 | |
| 533 | /* turn on keyboard and use hardware scanning */ |
| 534 | ctrl |= TWL4030_KEYPAD_CTRL_KBD_ON; |
| 535 | ctrl |= TWL4030_KEYPAD_CTRL_SOFT_NRST; |
| 536 | ctrl |= TWL4030_KEYPAD_CTRL_SOFTMODEN; |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 537 | ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, |
| 538 | TWL4030_KEYPAD_KEYP_CTRL_REG, ctrl); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 539 | /* enable key event status */ |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 540 | ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, |
| 541 | TWL4030_KEYPAD_KEYP_IMR1, 0xfe); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 542 | /* enable interrupt generation on rising and falling */ |
| 543 | /* this is a workaround for qemu twl4030 emulation */ |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 544 | ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, |
| 545 | TWL4030_KEYPAD_KEYP_EDR, 0x57); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 546 | /* enable ISR clear on read */ |
Nishanth Menon | 0208aaf | 2013-03-26 05:20:49 +0000 | [diff] [blame] | 547 | ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, |
| 548 | TWL4030_KEYPAD_KEYP_SIH_CTRL, 0x05); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 549 | return 0; |
| 550 | } |
| 551 | |
| 552 | static void rx51_kp_fill(u8 k, u8 mods) |
| 553 | { |
| 554 | /* check if some cursor key without meta fn key was pressed */ |
| 555 | if (!(mods & 2) && (k == 18 || k == 31 || k == 33 || k == 34)) { |
| 556 | keybuf[keybuf_tail++] = '\e'; |
| 557 | keybuf_tail %= KEYBUF_SIZE; |
| 558 | keybuf[keybuf_tail++] = '['; |
| 559 | keybuf_tail %= KEYBUF_SIZE; |
| 560 | if (k == 18) /* up */ |
| 561 | keybuf[keybuf_tail++] = 'A'; |
| 562 | else if (k == 31) /* left */ |
| 563 | keybuf[keybuf_tail++] = 'D'; |
| 564 | else if (k == 33) /* down */ |
| 565 | keybuf[keybuf_tail++] = 'B'; |
| 566 | else if (k == 34) /* right */ |
| 567 | keybuf[keybuf_tail++] = 'C'; |
| 568 | keybuf_tail %= KEYBUF_SIZE; |
| 569 | return; |
| 570 | } |
| 571 | |
| 572 | if (mods & 2) { /* fn meta key was pressed */ |
| 573 | k = keymap[k+64]; |
| 574 | } else { |
| 575 | k = keymap[k]; |
| 576 | if (mods & 1) { /* ctrl key was pressed */ |
| 577 | if (k >= 'a' && k <= 'z') |
| 578 | k -= 'a' - 1; |
| 579 | } |
| 580 | if (mods & 4) { /* shift key was pressed */ |
| 581 | if (k >= 'a' && k <= 'z') |
| 582 | k += 'A' - 'a'; |
| 583 | else if (k == '.') |
| 584 | k = ':'; |
| 585 | else if (k == ',') |
| 586 | k = ';'; |
| 587 | } |
| 588 | } |
| 589 | keybuf[keybuf_tail++] = k; |
| 590 | keybuf_tail %= KEYBUF_SIZE; |
| 591 | } |
| 592 | |
| 593 | /* |
| 594 | * Routine: rx51_kp_tstc |
| 595 | * Description: Test if key was pressed (from buffer). |
| 596 | */ |
Simon Glass | 709ea54 | 2014-07-23 06:54:59 -0600 | [diff] [blame] | 597 | int rx51_kp_tstc(struct stdio_dev *sdev) |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 598 | { |
| 599 | u8 c, r, dk, i; |
| 600 | u8 intr; |
| 601 | u8 mods; |
| 602 | |
| 603 | /* localy lock twl4030 i2c bus */ |
| 604 | if (test_and_set_bit(0, &twl_i2c_lock)) |
| 605 | return 0; |
| 606 | |
| 607 | /* twl4030 remembers up to 2 events */ |
| 608 | for (i = 0; i < 2; i++) { |
| 609 | |
| 610 | /* check interrupt register for events */ |
Nishanth Menon | b29c2f0 | 2013-03-26 05:20:50 +0000 | [diff] [blame] | 611 | twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD, |
| 612 | TWL4030_KEYPAD_KEYP_ISR1 + (2 * i), &intr); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 613 | |
| 614 | /* no event */ |
| 615 | if (!(intr&1)) |
| 616 | continue; |
| 617 | |
| 618 | /* read the key state */ |
| 619 | i2c_read(TWL4030_CHIP_KEYPAD, |
| 620 | TWL4030_KEYPAD_FULL_CODE_7_0, 1, keys, 8); |
| 621 | |
| 622 | /* cut out modifier keys from the keystate */ |
| 623 | mods = keys[4] >> 4; |
| 624 | keys[4] &= 0x0f; |
| 625 | |
| 626 | for (c = 0; c < 8; c++) { |
| 627 | |
| 628 | /* get newly pressed keys only */ |
| 629 | dk = ((keys[c] ^ old_keys[c])&keys[c]); |
| 630 | old_keys[c] = keys[c]; |
| 631 | |
| 632 | /* fill the keybuf */ |
| 633 | for (r = 0; r < 8; r++) { |
| 634 | if (dk&1) |
| 635 | rx51_kp_fill((c*8)+r, mods); |
| 636 | dk = dk >> 1; |
| 637 | } |
| 638 | |
| 639 | } |
| 640 | |
| 641 | } |
| 642 | |
| 643 | /* localy unlock twl4030 i2c bus */ |
| 644 | test_and_clear_bit(0, &twl_i2c_lock); |
| 645 | |
| 646 | return (KEYBUF_SIZE + keybuf_tail - keybuf_head)%KEYBUF_SIZE; |
| 647 | } |
| 648 | |
| 649 | /* |
| 650 | * Routine: rx51_kp_getc |
| 651 | * Description: Get last pressed key (from buffer). |
| 652 | */ |
Simon Glass | 709ea54 | 2014-07-23 06:54:59 -0600 | [diff] [blame] | 653 | int rx51_kp_getc(struct stdio_dev *sdev) |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 654 | { |
| 655 | keybuf_head %= KEYBUF_SIZE; |
Simon Glass | 709ea54 | 2014-07-23 06:54:59 -0600 | [diff] [blame] | 656 | while (!rx51_kp_tstc(sdev)) |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 657 | WATCHDOG_RESET(); |
| 658 | return keybuf[keybuf_head++]; |
| 659 | } |
| 660 | |
| 661 | /* |
| 662 | * Routine: board_mmc_init |
| 663 | * Description: Initialize mmc devices. |
| 664 | */ |
| 665 | int board_mmc_init(bd_t *bis) |
| 666 | { |
Nikita Kiryanov | e3913f5 | 2012-12-03 02:19:47 +0000 | [diff] [blame] | 667 | omap_mmc_init(0, 0, 0, -1, -1); |
| 668 | omap_mmc_init(1, 0, 0, -1, -1); |
Pali Rohár | ed407be | 2012-10-29 07:54:01 +0000 | [diff] [blame] | 669 | return 0; |
| 670 | } |
Paul Kocialkowski | aac5450 | 2014-11-08 20:55:47 +0100 | [diff] [blame] | 671 | |
| 672 | void board_mmc_power_init(void) |
| 673 | { |
| 674 | twl4030_power_mmc_init(0); |
| 675 | twl4030_power_mmc_init(1); |
| 676 | } |