1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2004-2011
4 * Texas Instruments, <www.ti.com>
5 *
6 * Author :
7 * Sunil Kumar <sunilsaini05@gmail.com>
8 * Shashi Ranjan <shashiranjanmca05@gmail.com>
9 *
10 * Derived from Beagle Board and 3430 SDP code by
11 * Richard Woodruff <r-woodruff2@ti.com>
12 * Syed Mohammed Khasim <khasim@ti.com>
13 *
14 */
15 #include <common.h>
16 #include <dm.h>
17 #include <ns16550.h>
18 #ifdef CONFIG_LED_STATUS
19 #include <status_led.h>
20 #endif
21 #include <twl4030.h>
22 #include <linux/mtd/rawnand.h>
23 #include <asm/io.h>
24 #include <asm/arch/mmc_host_def.h>
25 #include <asm/arch/mux.h>
26 #include <asm/arch/mem.h>
27 #include <asm/arch/sys_proto.h>
28 #include <asm/gpio.h>
29 #include <asm/mach-types.h>
30 #include <asm/omap_musb.h>
31 #include <linux/errno.h>
32 #include <linux/usb/ch9.h>
33 #include <linux/usb/gadget.h>
34 #include <linux/usb/musb.h>
35 #include "beagle.h"
36 #include <command.h>
37
38 #ifdef CONFIG_USB_EHCI_HCD
39 #include <usb.h>
40 #include <asm/ehci-omap.h>
41 #endif
42
43 #define TWL4030_I2C_BUS 0
44 #define EXPANSION_EEPROM_I2C_BUS 1
45 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50
46
47 #define TINCANTOOLS_ZIPPY 0x01000100
48 #define TINCANTOOLS_ZIPPY2 0x02000100
49 #define TINCANTOOLS_TRAINER 0x04000100
50 #define TINCANTOOLS_SHOWDOG 0x03000100
51 #define KBADC_BEAGLEFPGA 0x01000600
52 #define LW_BEAGLETOUCH 0x01000700
53 #define BRAINMUX_LCDOG 0x01000800
54 #define BRAINMUX_LCDOGTOUCH 0x02000800
55 #define BBTOYS_WIFI 0x01000B00
56 #define BBTOYS_VGA 0x02000B00
57 #define BBTOYS_LCD 0x03000B00
58 #define BCT_BRETTL3 0x01000F00
59 #define BCT_BRETTL4 0x02000F00
60 #define LSR_COM6L_ADPT 0x01001300
61 #define BEAGLE_NO_EEPROM 0xffffffff
62
63 DECLARE_GLOBAL_DATA_PTR;
64
65 static struct {
66 unsigned int device_vendor;
67 unsigned char revision;
68 unsigned char content;
69 char fab_revision[8];
70 char env_var[16];
71 char env_setting[64];
72 } expansion_config;
73
74 /*
75 * Routine: board_init
76 * Description: Early hardware init.
77 */
board_init(void)78 int board_init(void)
79 {
80 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
81 /* board id for Linux */
82 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
83 /* boot param addr */
84 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
85
86 #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
87 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
88 #endif
89
90 return 0;
91 }
92
93 #if defined(CONFIG_SPL_OS_BOOT)
spl_start_uboot(void)94 int spl_start_uboot(void)
95 {
96 /* break into full u-boot on 'c' */
97 if (serial_tstc() && serial_getc() == 'c')
98 return 1;
99
100 return 0;
101 }
102 #endif /* CONFIG_SPL_OS_BOOT */
103
104 /*
105 * Routine: get_board_revision
106 * Description: Detect if we are running on a Beagle revision Ax/Bx,
107 * C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading
108 * the level of GPIO173, GPIO172 and GPIO171. This should
109 * result in
110 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
111 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
112 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4
113 * GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx
114 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx
115 */
get_board_revision(void)116 static int get_board_revision(void)
117 {
118 static int revision = -1;
119
120 if (revision == -1) {
121 if (!gpio_request(171, "rev0") &&
122 !gpio_request(172, "rev1") &&
123 !gpio_request(173, "rev2")) {
124 gpio_direction_input(171);
125 gpio_direction_input(172);
126 gpio_direction_input(173);
127
128 revision = gpio_get_value(173) << 2 |
129 gpio_get_value(172) << 1 |
130 gpio_get_value(171);
131 } else {
132 printf("Error: unable to acquire board revision GPIOs\n");
133 }
134 }
135
136 return revision;
137 }
138
139 #ifdef CONFIG_SPL_BUILD
140 /*
141 * Routine: get_board_mem_timings
142 * Description: If we use SPL then there is no x-loader nor config header
143 * so we have to setup the DDR timings ourself on both banks.
144 */
get_board_mem_timings(struct board_sdrc_timings * timings)145 void get_board_mem_timings(struct board_sdrc_timings *timings)
146 {
147 int pop_mfr, pop_id;
148
149 /*
150 * We need to identify what PoP memory is on the board so that
151 * we know what timings to use. If we can't identify it then
152 * we know it's an xM. To map the ID values please see nand_ids.c
153 */
154 identify_nand_chip(&pop_mfr, &pop_id);
155
156 timings->mr = MICRON_V_MR_165;
157 switch (get_board_revision()) {
158 case REVISION_C4:
159 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
160 /* 512MB DDR */
161 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
162 timings->ctrla = NUMONYX_V_ACTIMA_165;
163 timings->ctrlb = NUMONYX_V_ACTIMB_165;
164 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
165 break;
166 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) {
167 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/
168 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
169 timings->ctrla = MICRON_V_ACTIMA_165;
170 timings->ctrlb = MICRON_V_ACTIMB_165;
171 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
172 break;
173 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
174 /* Beagleboard Rev C5, 256MB DDR */
175 timings->mcfg = MICRON_V_MCFG_200(256 << 20);
176 timings->ctrla = MICRON_V_ACTIMA_200;
177 timings->ctrlb = MICRON_V_ACTIMB_200;
178 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
179 break;
180 }
181 case REVISION_XM_AB:
182 case REVISION_XM_C:
183 if (pop_mfr == 0) {
184 /* 256MB DDR */
185 timings->mcfg = MICRON_V_MCFG_200(256 << 20);
186 timings->ctrla = MICRON_V_ACTIMA_200;
187 timings->ctrlb = MICRON_V_ACTIMB_200;
188 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
189 } else {
190 /* 512MB DDR */
191 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
192 timings->ctrla = NUMONYX_V_ACTIMA_165;
193 timings->ctrlb = NUMONYX_V_ACTIMB_165;
194 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
195 }
196 break;
197 default:
198 /* Assume 128MB and Micron/165MHz timings to be safe */
199 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
200 timings->ctrla = MICRON_V_ACTIMA_165;
201 timings->ctrlb = MICRON_V_ACTIMB_165;
202 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
203 }
204 }
205 #endif
206
207 /*
208 * Routine: get_expansion_id
209 * Description: This function checks for expansion board by checking I2C
210 * bus 1 for the availability of an AT24C01B serial EEPROM.
211 * returns the device_vendor field from the EEPROM
212 */
get_expansion_id(void)213 static unsigned int get_expansion_id(void)
214 {
215 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
216
217 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
218 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
219 i2c_set_bus_num(TWL4030_I2C_BUS);
220 return BEAGLE_NO_EEPROM;
221 }
222
223 /* read configuration data */
224 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
225 sizeof(expansion_config));
226
227 /* retry reading configuration data with 16bit addressing */
228 if ((expansion_config.device_vendor == 0xFFFFFF00) ||
229 (expansion_config.device_vendor == 0xFFFFFFFF)) {
230 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n");
231 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config,
232 sizeof(expansion_config));
233 }
234
235 i2c_set_bus_num(TWL4030_I2C_BUS);
236
237 return expansion_config.device_vendor;
238 }
239
240 #ifdef CONFIG_VIDEO_OMAP3
241 /*
242 * Configure DSS to display background color on DVID
243 * Configure VENC to display color bar on S-Video
244 */
beagle_display_init(void)245 static void beagle_display_init(void)
246 {
247 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
248 switch (get_board_revision()) {
249 case REVISION_AXBX:
250 case REVISION_CX:
251 case REVISION_C4:
252 omap3_dss_panel_config(&dvid_cfg);
253 break;
254 case REVISION_XM_AB:
255 case REVISION_XM_C:
256 default:
257 omap3_dss_panel_config(&dvid_cfg_xm);
258 break;
259 }
260 }
261
262 /*
263 * Enable DVI power
264 */
beagle_dvi_pup(void)265 static void beagle_dvi_pup(void)
266 {
267 uchar val;
268
269 switch (get_board_revision()) {
270 case REVISION_AXBX:
271 case REVISION_CX:
272 case REVISION_C4:
273 gpio_request(170, "dvi");
274 gpio_direction_output(170, 0);
275 gpio_set_value(170, 1);
276 break;
277 case REVISION_XM_AB:
278 case REVISION_XM_C:
279 default:
280 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3)
281 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6)
282
283 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
284 val |= 4;
285 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
286
287 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
288 val |= 4;
289 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
290 break;
291 }
292 }
293 #endif
294
295 #ifdef CONFIG_USB_MUSB_OMAP2PLUS
296 static struct musb_hdrc_config musb_config = {
297 .multipoint = 1,
298 .dyn_fifo = 1,
299 .num_eps = 16,
300 .ram_bits = 12,
301 };
302
303 static struct omap_musb_board_data musb_board_data = {
304 .interface_type = MUSB_INTERFACE_ULPI,
305 };
306
307 static struct musb_hdrc_platform_data musb_plat = {
308 #if defined(CONFIG_USB_MUSB_HOST)
309 .mode = MUSB_HOST,
310 #elif defined(CONFIG_USB_MUSB_GADGET)
311 .mode = MUSB_PERIPHERAL,
312 #else
313 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
314 #endif
315 .config = &musb_config,
316 .power = 100,
317 .platform_ops = &omap2430_ops,
318 .board_data = &musb_board_data,
319 };
320 #endif
321
322 /*
323 * Routine: misc_init_r
324 * Description: Configure board specific parts
325 */
misc_init_r(void)326 int misc_init_r(void)
327 {
328 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
329 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
330 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
331 bool generate_fake_mac = false;
332 u32 value;
333
334 /* Enable i2c2 pullup resisters */
335 value = readl(&prog_io_base->io1);
336 value &= ~(PRG_I2C2_PULLUPRESX);
337 writel(value, &prog_io_base->io1);
338
339 switch (get_board_revision()) {
340 case REVISION_AXBX:
341 printf("Beagle Rev Ax/Bx\n");
342 env_set("beaglerev", "AxBx");
343 break;
344 case REVISION_CX:
345 printf("Beagle Rev C1/C2/C3\n");
346 env_set("beaglerev", "Cx");
347 MUX_BEAGLE_C();
348 break;
349 case REVISION_C4:
350 printf("Beagle Rev C4\n");
351 env_set("beaglerev", "C4");
352 MUX_BEAGLE_C();
353 /* Set VAUX2 to 1.8V for EHCI PHY */
354 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
355 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
356 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
357 TWL4030_PM_RECEIVER_DEV_GRP_P1);
358 break;
359 case REVISION_XM_AB:
360 printf("Beagle xM Rev A/B\n");
361 env_set("beaglerev", "xMAB");
362 MUX_BEAGLE_XM();
363 /* Set VAUX2 to 1.8V for EHCI PHY */
364 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
365 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
366 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
367 TWL4030_PM_RECEIVER_DEV_GRP_P1);
368 generate_fake_mac = true;
369 break;
370 case REVISION_XM_C:
371 printf("Beagle xM Rev C\n");
372 env_set("beaglerev", "xMC");
373 MUX_BEAGLE_XM();
374 /* Set VAUX2 to 1.8V for EHCI PHY */
375 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
376 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
377 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
378 TWL4030_PM_RECEIVER_DEV_GRP_P1);
379 generate_fake_mac = true;
380 break;
381 default:
382 printf("Beagle unknown 0x%02x\n", get_board_revision());
383 MUX_BEAGLE_XM();
384 /* Set VAUX2 to 1.8V for EHCI PHY */
385 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
386 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
387 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
388 TWL4030_PM_RECEIVER_DEV_GRP_P1);
389 generate_fake_mac = true;
390 }
391
392 switch (get_expansion_id()) {
393 case TINCANTOOLS_ZIPPY:
394 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
395 expansion_config.revision,
396 expansion_config.fab_revision);
397 MUX_TINCANTOOLS_ZIPPY();
398 env_set("buddy", "zippy");
399 break;
400 case TINCANTOOLS_ZIPPY2:
401 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
402 expansion_config.revision,
403 expansion_config.fab_revision);
404 MUX_TINCANTOOLS_ZIPPY();
405 env_set("buddy", "zippy2");
406 break;
407 case TINCANTOOLS_TRAINER:
408 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
409 expansion_config.revision,
410 expansion_config.fab_revision);
411 MUX_TINCANTOOLS_ZIPPY();
412 MUX_TINCANTOOLS_TRAINER();
413 env_set("buddy", "trainer");
414 break;
415 case TINCANTOOLS_SHOWDOG:
416 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
417 expansion_config.revision,
418 expansion_config.fab_revision);
419 /* Place holder for DSS2 definition for showdog lcd */
420 env_set("defaultdisplay", "showdoglcd");
421 env_set("buddy", "showdog");
422 break;
423 case KBADC_BEAGLEFPGA:
424 printf("Recognized KBADC Beagle FPGA board\n");
425 MUX_KBADC_BEAGLEFPGA();
426 env_set("buddy", "beaglefpga");
427 break;
428 case LW_BEAGLETOUCH:
429 printf("Recognized Liquidware BeagleTouch board\n");
430 env_set("buddy", "beagletouch");
431 break;
432 case BRAINMUX_LCDOG:
433 printf("Recognized Brainmux LCDog board\n");
434 env_set("buddy", "lcdog");
435 break;
436 case BRAINMUX_LCDOGTOUCH:
437 printf("Recognized Brainmux LCDog Touch board\n");
438 env_set("buddy", "lcdogtouch");
439 break;
440 case BBTOYS_WIFI:
441 printf("Recognized BeagleBoardToys WiFi board\n");
442 MUX_BBTOYS_WIFI()
443 env_set("buddy", "bbtoys-wifi");
444 break;
445 case BBTOYS_VGA:
446 printf("Recognized BeagleBoardToys VGA board\n");
447 break;
448 case BBTOYS_LCD:
449 printf("Recognized BeagleBoardToys LCD board\n");
450 break;
451 case BCT_BRETTL3:
452 printf("Recognized bct electronic GmbH brettl3 board\n");
453 break;
454 case BCT_BRETTL4:
455 printf("Recognized bct electronic GmbH brettl4 board\n");
456 break;
457 case LSR_COM6L_ADPT:
458 printf("Recognized LSR COM6L Adapter Board\n");
459 MUX_BBTOYS_WIFI()
460 env_set("buddy", "lsr-com6l-adpt");
461 break;
462 case BEAGLE_NO_EEPROM:
463 printf("No EEPROM on expansion board\n");
464 env_set("buddy", "none");
465 break;
466 default:
467 printf("Unrecognized expansion board: %x\n",
468 expansion_config.device_vendor);
469 env_set("buddy", "unknown");
470 }
471
472 if (expansion_config.content == 1)
473 env_set(expansion_config.env_var, expansion_config.env_setting);
474
475 twl4030_power_init();
476 switch (get_board_revision()) {
477 case REVISION_XM_AB:
478 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
479 break;
480 default:
481 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
482 break;
483 }
484
485 /* Set GPIO states before they are made outputs */
486 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
487 &gpio6_base->setdataout);
488 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
489 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
490
491 /* Configure GPIOs to output */
492 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
493 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
494 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
495
496 omap_die_id_display();
497
498 #ifdef CONFIG_VIDEO_OMAP3
499 beagle_dvi_pup();
500 beagle_display_init();
501 omap3_dss_enable();
502 #endif
503
504 #ifdef CONFIG_USB_MUSB_OMAP2PLUS
505 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE);
506 #endif
507
508 if (generate_fake_mac)
509 omap_die_id_usbethaddr();
510
511 #if defined(CONFIG_MTDIDS_DEFAULT) && defined(CONFIG_MTDPARTS_DEFAULT)
512 if (strlen(CONFIG_MTDIDS_DEFAULT))
513 env_set("mtdids", CONFIG_MTDIDS_DEFAULT);
514
515 if (strlen(CONFIG_MTDPARTS_DEFAULT))
516 env_set("mtdparts", CONFIG_MTDPARTS_DEFAULT);
517 #endif
518
519 return 0;
520 }
521
522 /*
523 * Routine: set_muxconf_regs
524 * Description: Setting up the configuration Mux registers specific to the
525 * hardware. Many pins need to be moved from protect to primary
526 * mode.
527 */
set_muxconf_regs(void)528 void set_muxconf_regs(void)
529 {
530 MUX_BEAGLE();
531 }
532
533 #if defined(CONFIG_MMC)
board_mmc_init(bd_t * bis)534 int board_mmc_init(bd_t *bis)
535 {
536 return omap_mmc_init(0, 0, 0, -1, -1);
537 }
538 #endif
539
540 #if defined(CONFIG_MMC)
board_mmc_power_init(void)541 void board_mmc_power_init(void)
542 {
543 twl4030_power_mmc_init(0);
544 }
545 #endif
546
547 #if defined(CONFIG_USB_EHCI_HCD) && !defined(CONFIG_SPL_BUILD)
548 /* Call usb_stop() before starting the kernel */
show_boot_progress(int val)549 void show_boot_progress(int val)
550 {
551 if (val == BOOTSTAGE_ID_RUN_OS)
552 usb_stop();
553 }
554
555 static struct omap_usbhs_board_data usbhs_bdata = {
556 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
557 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
558 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
559 };
560
ehci_hcd_init(int index,enum usb_init_type init,struct ehci_hccr ** hccr,struct ehci_hcor ** hcor)561 int ehci_hcd_init(int index, enum usb_init_type init,
562 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
563 {
564 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
565 }
566
ehci_hcd_stop(int index)567 int ehci_hcd_stop(int index)
568 {
569 return omap_ehci_hcd_stop();
570 }
571
572 #endif /* CONFIG_USB_EHCI_HCD */
573
574 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)
board_eth_init(bd_t * bis)575 int board_eth_init(bd_t *bis)
576 {
577 return usb_eth_initialize(bis);
578 }
579 #endif
580