3 * Ивайло Димитров <freemangordon@abv.bg>
5 * (C) Copyright 2011-2012
6 * Pali Rohár <pali.rohar@gmail.com>
9 * Alistair Buxton <a.j.buxton@gmail.com>
11 * Derived from Beagle Board and 3430 SDP code:
12 * (C) Copyright 2004-2008
13 * Texas Instruments, <www.ti.com>
16 * Sunil Kumar <sunilsaini05@gmail.com>
17 * Shashi Ranjan <shashiranjanmca05@gmail.com>
19 * Richard Woodruff <r-woodruff2@ti.com>
20 * Syed Mohammed Khasim <khasim@ti.com>
22 * SPDX-License-Identifier: GPL-2.0+
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>
42 DECLARE_GLOBAL_DATA_PTR;
46 const omap3_sysinfo sysinfo = {
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"),
92 static char *boot_reason_ptr;
93 static char *hw_build_ptr;
94 static char *nolo_version_ptr;
95 static char *boot_mode_ptr;
98 * Routine: init_omap_tags
99 * Description: Initialize pointers to values in tag_omap
101 static void init_omap_tags(void)
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;
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;
128 static void reuse_omap_atags(struct tag_omap *t)
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);
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);
155 t = tag_omap_next(t);
160 * Routine: reuse_atags
161 * Description: Reuse atags from previous bootloader.
162 * Reuse only only HW build, boot reason, boot mode and nolo
164 static void reuse_atags(void)
166 struct tag *t = (struct tag *)gd->bd->bi_boot_params;
168 /* First tag must be ATAG_CORE */
169 if (t->hdr.tag != ATAG_CORE)
172 if (!boot_reason_ptr || !hw_build_ptr)
175 /* Last tag must be ATAG_NONE */
176 while (t->hdr.tag != ATAG_NONE) {
177 switch (t->hdr.tag) {
179 memset(hw_build_ptr, 0, 12);
180 sprintf(hw_build_ptr, "%x", t->u.revision.rev);
183 reuse_omap_atags((struct tag_omap *)&t->u);
193 * Routine: board_init
194 * Description: Early hardware init.
198 /* in SRAM or SDRAM, finish GPMC */
200 /* boot param addr */
201 gd->bd->bi_boot_params = OMAP34XX_SDRC_CS0 + 0x100;
206 * Routine: get_board_revision
207 * Description: Return board revision.
209 u32 get_board_rev(void)
211 return simple_strtol(hw_build_ptr, NULL, 16);
215 * Routine: setup_board_tags
216 * Description: Append board specific boot tags.
218 void setup_board_tags(struct tag **in_params)
220 int setup_console_atag;
221 char *setup_boot_reason_atag;
222 char *setup_boot_mode_atag;
230 params = (struct tag *)gd->bd->bi_boot_params;
232 params->u.core.flags = 0x0;
233 params->u.core.pagesize = 0x1000;
234 params->u.core.rootdev = 0x0;
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')
241 str = getenv("setup_console_atag");
242 if (str && str[0] == '1')
243 setup_console_atag = 1;
245 setup_console_atag = 0;
247 setup_boot_reason_atag = getenv("setup_boot_reason_atag");
248 setup_boot_mode_atag = getenv("setup_boot_mode_atag");
251 t = (struct tag_omap *)¶ms->u;
252 total_size = sizeof(struct tag_header);
254 for (i = 0; omap[i].hdr.tag; i++) {
256 /* skip serial console tag */
257 if (!setup_console_atag &&
258 omap[i].hdr.tag == OMAP_TAG_SERIAL_CONSOLE)
261 size = omap[i].hdr.size + sizeof(struct tag_omap_header);
262 memcpy(t, &omap[i], size);
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;
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);
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);
285 t = tag_omap_next(t);
289 params->hdr.tag = ATAG_BOARD;
290 params->hdr.size = total_size >> 2;
291 params = tag_next(params);
297 * Routine: video_hw_init
298 * Description: Set up the GraphicDevice depending on sys_boot.
300 void *video_hw_init(void)
302 /* fill in Graphic Device */
303 gdev.frameAdrs = 0x8f9c0000;
307 gdev.gdfIndex = GDF_16BIT_565RGB;
308 memset((void *)gdev.frameAdrs, 0, 0xbb800);
309 return (void *) &gdev;
313 * Routine: twl4030_regulator_set_mode
314 * Description: Set twl4030 regulator mode over i2c powerbus.
316 static void twl4030_regulator_set_mode(u8 id, u8 mode)
318 u16 msg = MSG_SINGULAR(DEV_GRP_P1, id, mode);
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);
325 static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
327 u32 i, num_params = *parameters;
328 u32 *sram_scratch_space = (u32 *)OMAP3_PUBLIC_SRAM_SCRATCH_AREA;
331 * copy the parameters to an un-cached area to avoid coherency
334 for (i = 0; i < num_params; i++) {
335 __raw_writel(*parameters, sram_scratch_space);
337 sram_scratch_space++;
340 /* Now make the PPA call */
341 do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA);
345 * Routine: omap3_update_aux_cr_secure_rx51
346 * Description: Modify the contents Auxiliary Control Register.
348 * set_bits - bits to set in ACR
349 * clr_bits - bits to clear in ACR
351 static void omap3_update_aux_cr_secure_rx51(u32 set_bits, u32 clear_bits)
353 struct emu_hal_params_rx51 emu_romcode_params = { 0, };
357 asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
361 emu_romcode_params.num_params = 2;
362 emu_romcode_params.param1 = acr;
364 omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
365 (u32 *)&emu_romcode_params);
369 * Routine: misc_init_r
370 * Description: Configure board specific parts.
372 int misc_init_r(void)
377 /* reset lp5523 led */
380 i2c_write(0x32, 0x3d, 1, &state, 1);
383 /* initialize twl4030 power managment */
384 twl4030_power_init();
386 /* set VSIM to 1.8V */
387 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED,
388 TWL4030_PM_RECEIVER_VSIM_VSEL_18,
389 TWL4030_PM_RECEIVER_VSIM_DEV_GRP,
390 TWL4030_PM_RECEIVER_DEV_GRP_P1);
392 /* store I2C access state */
393 twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG,
396 /* enable I2C access to powerbus (needed for twl4030 regulator) */
397 twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG,
400 /* set VAUX3, VSIM and VMMC1 state to active - enable eMMC memory */
401 twl4030_regulator_set_mode(RES_VAUX3, RES_STATE_ACTIVE);
402 twl4030_regulator_set_mode(RES_VSIM, RES_STATE_ACTIVE);
403 twl4030_regulator_set_mode(RES_VMMC1, RES_STATE_ACTIVE);
405 /* restore I2C access state */
406 twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG,
409 /* set env variable attkernaddr for relocated kernel */
410 sprintf(buf, "%#x", KERNEL_ADDRESS);
411 setenv("attkernaddr", buf);
413 /* initialize omap tags */
416 /* reuse atags from previous bootloader */
423 * Cortex-A8(r1p0..r1p2) errata 430973 workaround
424 * Set IBE bit in Auxiliary Control Register
426 omap3_update_aux_cr_secure_rx51(1 << 6, 0);
432 * Routine: set_muxconf_regs
433 * Description: Setting up the configuration Mux registers specific to the
434 * hardware. Many pins need to be moved from protect to primary
437 void set_muxconf_regs(void)
442 static unsigned long int twl_wd_time; /* last time of watchdog reset */
443 static unsigned long int twl_i2c_lock;
446 * Routine: hw_watchdog_reset
447 * Description: Reset timeout of twl4030 watchdog.
449 void hw_watchdog_reset(void)
453 /* do not reset watchdog too often - max every 4s */
454 if (get_timer(twl_wd_time) < 4 * CONFIG_SYS_HZ)
457 /* localy lock twl4030 i2c bus */
458 if (test_and_set_bit(0, &twl_i2c_lock))
461 /* read actual watchdog timeout */
462 twl4030_i2c_read_u8(TWL4030_CHIP_PM_RECEIVER,
463 TWL4030_PM_RECEIVER_WATCHDOG_CFG, &timeout);
465 /* timeout 0 means watchdog is disabled */
466 /* reset watchdog timeout to 31s (maximum) */
468 twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER,
469 TWL4030_PM_RECEIVER_WATCHDOG_CFG, 31);
471 /* store last watchdog reset time */
472 twl_wd_time = get_timer(0);
474 /* localy unlock twl4030 i2c bus */
475 test_and_clear_bit(0, &twl_i2c_lock);
479 * TWL4030 keypad handler for cfb_console
482 static const char keymap[] = {
484 'q', 'o', 'p', ',', '\b', 0, 'a', 's',
485 'w', 'd', 'f', 'g', 'h', 'j', 'k', 'l',
486 'e', '.', 0, '\r', 0, 'z', 'x', 'c',
487 'r', 'v', 'b', 'n', 'm', ' ', ' ', 0,
488 't', 0, 0, 0, 0, 0, 0, 0,
489 'y', 0, 0, 0, 0, 0, 0, 0,
490 'u', 0, 0, 0, 0, 0, 0, 0,
491 'i', 5, 6, 0, 0, 0, 0, 0,
493 '1', '9', '0', '=', '\b', 0, '*', '+',
494 '2', '#', '-', '_', '(', ')', '&', '!',
495 '3', '?', '^', '\r', 0, 156, '$', 238,
496 '4', '/', '\\', '"', '\'', '@', 0, '<',
497 '5', '|', '>', 0, 0, 0, 0, 0,
498 '6', 0, 0, 0, 0, 0, 0, 0,
499 '7', 0, 0, 0, 0, 0, 0, 0,
500 '8', 16, 17, 0, 0, 0, 0, 0,
504 static u8 old_keys[8] = {0, 0, 0, 0, 0, 0, 0, 0};
505 #define KEYBUF_SIZE 32
506 static u8 keybuf[KEYBUF_SIZE];
507 static u8 keybuf_head;
508 static u8 keybuf_tail;
511 * Routine: rx51_kp_init
512 * Description: Initialize HW keyboard.
514 int rx51_kp_init(void)
518 ret = twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD,
519 TWL4030_KEYPAD_KEYP_CTRL_REG, &ctrl);
524 /* turn on keyboard and use hardware scanning */
525 ctrl |= TWL4030_KEYPAD_CTRL_KBD_ON;
526 ctrl |= TWL4030_KEYPAD_CTRL_SOFT_NRST;
527 ctrl |= TWL4030_KEYPAD_CTRL_SOFTMODEN;
528 ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
529 TWL4030_KEYPAD_KEYP_CTRL_REG, ctrl);
530 /* enable key event status */
531 ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
532 TWL4030_KEYPAD_KEYP_IMR1, 0xfe);
533 /* enable interrupt generation on rising and falling */
534 /* this is a workaround for qemu twl4030 emulation */
535 ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
536 TWL4030_KEYPAD_KEYP_EDR, 0x57);
537 /* enable ISR clear on read */
538 ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
539 TWL4030_KEYPAD_KEYP_SIH_CTRL, 0x05);
543 static void rx51_kp_fill(u8 k, u8 mods)
545 /* check if some cursor key without meta fn key was pressed */
546 if (!(mods & 2) && (k == 18 || k == 31 || k == 33 || k == 34)) {
547 keybuf[keybuf_tail++] = '\e';
548 keybuf_tail %= KEYBUF_SIZE;
549 keybuf[keybuf_tail++] = '[';
550 keybuf_tail %= KEYBUF_SIZE;
551 if (k == 18) /* up */
552 keybuf[keybuf_tail++] = 'A';
553 else if (k == 31) /* left */
554 keybuf[keybuf_tail++] = 'D';
555 else if (k == 33) /* down */
556 keybuf[keybuf_tail++] = 'B';
557 else if (k == 34) /* right */
558 keybuf[keybuf_tail++] = 'C';
559 keybuf_tail %= KEYBUF_SIZE;
563 if (mods & 2) { /* fn meta key was pressed */
567 if (mods & 1) { /* ctrl key was pressed */
568 if (k >= 'a' && k <= 'z')
571 if (mods & 4) { /* shift key was pressed */
572 if (k >= 'a' && k <= 'z')
580 keybuf[keybuf_tail++] = k;
581 keybuf_tail %= KEYBUF_SIZE;
585 * Routine: rx51_kp_tstc
586 * Description: Test if key was pressed (from buffer).
588 int rx51_kp_tstc(struct stdio_dev *sdev)
594 /* localy lock twl4030 i2c bus */
595 if (test_and_set_bit(0, &twl_i2c_lock))
598 /* twl4030 remembers up to 2 events */
599 for (i = 0; i < 2; i++) {
601 /* check interrupt register for events */
602 twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD,
603 TWL4030_KEYPAD_KEYP_ISR1 + (2 * i), &intr);
609 /* read the key state */
610 i2c_read(TWL4030_CHIP_KEYPAD,
611 TWL4030_KEYPAD_FULL_CODE_7_0, 1, keys, 8);
613 /* cut out modifier keys from the keystate */
617 for (c = 0; c < 8; c++) {
619 /* get newly pressed keys only */
620 dk = ((keys[c] ^ old_keys[c])&keys[c]);
621 old_keys[c] = keys[c];
623 /* fill the keybuf */
624 for (r = 0; r < 8; r++) {
626 rx51_kp_fill((c*8)+r, mods);
634 /* localy unlock twl4030 i2c bus */
635 test_and_clear_bit(0, &twl_i2c_lock);
637 return (KEYBUF_SIZE + keybuf_tail - keybuf_head)%KEYBUF_SIZE;
641 * Routine: rx51_kp_getc
642 * Description: Get last pressed key (from buffer).
644 int rx51_kp_getc(struct stdio_dev *sdev)
646 keybuf_head %= KEYBUF_SIZE;
647 while (!rx51_kp_tstc(sdev))
649 return keybuf[keybuf_head++];
653 * Routine: board_mmc_init
654 * Description: Initialize mmc devices.
656 int board_mmc_init(bd_t *bis)
658 omap_mmc_init(0, 0, 0, -1, -1);
659 omap_mmc_init(1, 0, 0, -1, -1);
663 void board_mmc_power_init(void)
665 twl4030_power_mmc_init(0);
666 twl4030_power_mmc_init(1);