2 * (C) Copyright 2004-2011
3 * Texas Instruments, <www.ti.com>
6 * Sunil Kumar <sunilsaini05@gmail.com>
7 * Shashi Ranjan <shashiranjanmca05@gmail.com>
9 * Derived from Beagle Board and 3430 SDP code by
10 * Richard Woodruff <r-woodruff2@ti.com>
11 * Syed Mohammed Khasim <khasim@ti.com>
14 * See file CREDITS for list of people who contributed to this
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 #ifdef CONFIG_STATUS_LED
34 #include <status_led.h>
37 #include <linux/mtd/nand.h>
39 #include <asm/arch/mmc_host_def.h>
40 #include <asm/arch/mux.h>
41 #include <asm/arch/mem.h>
42 #include <asm/arch/sys_proto.h>
44 #include <asm/mach-types.h>
45 #ifdef CONFIG_USB_EHCI
47 #include <asm/arch/clocks.h>
48 #include <asm/arch/clocks_omap3.h>
49 #include <asm/arch/ehci_omap3.h>
50 /* from drivers/usb/host/ehci-core.h */
51 extern struct ehci_hccr *hccr;
52 extern volatile struct ehci_hcor *hcor;
57 #define pr_debug(fmt, args...) debug(fmt, ##args)
59 #define TWL4030_I2C_BUS 0
60 #define EXPANSION_EEPROM_I2C_BUS 1
61 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50
63 #define TINCANTOOLS_ZIPPY 0x01000100
64 #define TINCANTOOLS_ZIPPY2 0x02000100
65 #define TINCANTOOLS_TRAINER 0x04000100
66 #define TINCANTOOLS_SHOWDOG 0x03000100
67 #define KBADC_BEAGLEFPGA 0x01000600
68 #define LW_BEAGLETOUCH 0x01000700
69 #define BRAINMUX_LCDOG 0x01000800
70 #define BRAINMUX_LCDOGTOUCH 0x02000800
71 #define BBTOYS_WIFI 0x01000B00
72 #define BBTOYS_VGA 0x02000B00
73 #define BBTOYS_LCD 0x03000B00
74 #define BCT_BRETTL3 0x01000F00
75 #define BEAGLE_NO_EEPROM 0xffffffff
77 DECLARE_GLOBAL_DATA_PTR;
80 unsigned int device_vendor;
81 unsigned char revision;
82 unsigned char content;
90 * Description: Early hardware init.
94 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
95 /* board id for Linux */
96 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
98 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
100 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
101 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
108 * Routine: get_board_revision
109 * Description: Detect if we are running on a Beagle revision Ax/Bx,
110 * C1/2/3, C4 or xM. This can be done by reading
111 * the level of GPIO173, GPIO172 and GPIO171. This should
113 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
114 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
115 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4
116 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM
118 int get_board_revision(void)
122 if (!gpio_request(171, "") &&
123 !gpio_request(172, "") &&
124 !gpio_request(173, "")) {
126 gpio_direction_input(171);
127 gpio_direction_input(172);
128 gpio_direction_input(173);
130 revision = gpio_get_value(173) << 2 |
131 gpio_get_value(172) << 1 |
134 printf("Error: unable to acquire board revision GPIOs\n");
141 #ifdef CONFIG_SPL_BUILD
143 * Routine: get_board_mem_timings
144 * Description: If we use SPL then there is no x-loader nor config header
145 * so we have to setup the DDR timings ourself on both banks.
147 void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
153 * We need to identify what PoP memory is on the board so that
154 * we know what timings to use. If we can't identify it then
155 * we know it's an xM. To map the ID values please see nand_ids.c
157 identify_nand_chip(&pop_mfr, &pop_id);
159 *mr = MICRON_V_MR_165;
160 switch (get_board_revision()) {
162 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
164 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
165 *ctrla = NUMONYX_V_ACTIMA_165;
166 *ctrlb = NUMONYX_V_ACTIMB_165;
167 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
169 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) {
170 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/
171 *mcfg = MICRON_V_MCFG_165(128 << 20);
172 *ctrla = MICRON_V_ACTIMA_165;
173 *ctrlb = MICRON_V_ACTIMB_165;
174 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
176 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
177 /* Beagleboard Rev C5, 256MB DDR */
178 *mcfg = MICRON_V_MCFG_200(256 << 20);
179 *ctrla = MICRON_V_ACTIMA_200;
180 *ctrlb = MICRON_V_ACTIMB_200;
181 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
189 *mcfg = MICRON_V_MCFG_200(256 << 20);
190 *ctrla = MICRON_V_ACTIMA_200;
191 *ctrlb = MICRON_V_ACTIMB_200;
192 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
195 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
196 *ctrla = NUMONYX_V_ACTIMA_165;
197 *ctrlb = NUMONYX_V_ACTIMB_165;
198 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
202 /* Assume 128MB and Micron/165MHz timings to be safe */
203 *mcfg = MICRON_V_MCFG_165(128 << 20);
204 *ctrla = MICRON_V_ACTIMA_165;
205 *ctrlb = MICRON_V_ACTIMB_165;
206 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
212 * Routine: get_expansion_id
213 * Description: This function checks for expansion board by checking I2C
214 * bus 1 for the availability of an AT24C01B serial EEPROM.
215 * returns the device_vendor field from the EEPROM
217 unsigned int get_expansion_id(void)
219 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
221 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
222 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
223 i2c_set_bus_num(TWL4030_I2C_BUS);
224 return BEAGLE_NO_EEPROM;
227 /* read configuration data */
228 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
229 sizeof(expansion_config));
231 i2c_set_bus_num(TWL4030_I2C_BUS);
233 return expansion_config.device_vendor;
237 * Configure DSS to display background color on DVID
238 * Configure VENC to display color bar on S-Video
240 void beagle_display_init(void)
242 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
243 switch (get_board_revision()) {
247 omap3_dss_panel_config(&dvid_cfg);
253 omap3_dss_panel_config(&dvid_cfg_xm);
259 * Routine: misc_init_r
260 * Description: Configure board specific parts
262 int misc_init_r(void)
264 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
265 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
266 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
268 /* Enable i2c2 pullup resisters */
269 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
271 switch (get_board_revision()) {
273 printf("Beagle Rev Ax/Bx\n");
274 setenv("beaglerev", "AxBx");
277 printf("Beagle Rev C1/C2/C3\n");
278 setenv("beaglerev", "Cx");
282 printf("Beagle Rev C4\n");
283 setenv("beaglerev", "C4");
285 /* Set VAUX2 to 1.8V for EHCI PHY */
286 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
287 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
288 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
289 TWL4030_PM_RECEIVER_DEV_GRP_P1);
292 printf("Beagle xM Rev A\n");
293 setenv("beaglerev", "xMA");
295 /* Set VAUX2 to 1.8V for EHCI PHY */
296 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
297 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
298 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
299 TWL4030_PM_RECEIVER_DEV_GRP_P1);
302 printf("Beagle xM Rev B\n");
303 setenv("beaglerev", "xMB");
305 /* Set VAUX2 to 1.8V for EHCI PHY */
306 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
307 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
308 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
309 TWL4030_PM_RECEIVER_DEV_GRP_P1);
312 printf("Beagle xM Rev C\n");
313 setenv("beaglerev", "xMC");
315 /* Set VAUX2 to 1.8V for EHCI PHY */
316 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
317 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
318 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
319 TWL4030_PM_RECEIVER_DEV_GRP_P1);
322 printf("Beagle unknown 0x%02x\n", get_board_revision());
324 /* Set VAUX2 to 1.8V for EHCI PHY */
325 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
326 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
327 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
328 TWL4030_PM_RECEIVER_DEV_GRP_P1);
331 switch (get_expansion_id()) {
332 case TINCANTOOLS_ZIPPY:
333 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
334 expansion_config.revision,
335 expansion_config.fab_revision);
336 MUX_TINCANTOOLS_ZIPPY();
337 setenv("buddy", "zippy");
339 case TINCANTOOLS_ZIPPY2:
340 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
341 expansion_config.revision,
342 expansion_config.fab_revision);
343 MUX_TINCANTOOLS_ZIPPY();
344 setenv("buddy", "zippy2");
346 case TINCANTOOLS_TRAINER:
347 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
348 expansion_config.revision,
349 expansion_config.fab_revision);
350 MUX_TINCANTOOLS_ZIPPY();
351 MUX_TINCANTOOLS_TRAINER();
352 setenv("buddy", "trainer");
354 case TINCANTOOLS_SHOWDOG:
355 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
356 expansion_config.revision,
357 expansion_config.fab_revision);
358 /* Place holder for DSS2 definition for showdog lcd */
359 setenv("defaultdisplay", "showdoglcd");
360 setenv("buddy", "showdog");
362 case KBADC_BEAGLEFPGA:
363 printf("Recognized KBADC Beagle FPGA board\n");
364 MUX_KBADC_BEAGLEFPGA();
365 setenv("buddy", "beaglefpga");
368 printf("Recognized Liquidware BeagleTouch board\n");
369 setenv("buddy", "beagletouch");
372 printf("Recognized Brainmux LCDog board\n");
373 setenv("buddy", "lcdog");
375 case BRAINMUX_LCDOGTOUCH:
376 printf("Recognized Brainmux LCDog Touch board\n");
377 setenv("buddy", "lcdogtouch");
380 printf("Recognized BeagleBoardToys WiFi board\n");
382 setenv("buddy", "bbtoys-wifi");
385 printf("Recognized BeagleBoardToys VGA board\n");
388 printf("Recognized BeagleBoardToys LCD board\n");
391 printf("Recognized bct electronic GmbH brettl3 board\n");
393 case BEAGLE_NO_EEPROM:
394 printf("No EEPROM on expansion board\n");
395 setenv("buddy", "none");
398 printf("Unrecognized expansion board: %x\n",
399 expansion_config.device_vendor);
400 setenv("buddy", "unknown");
403 if (expansion_config.content == 1)
404 setenv(expansion_config.env_var, expansion_config.env_setting);
406 twl4030_power_init();
407 switch (get_board_revision()) {
410 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
413 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
417 /* Set GPIO states before they are made outputs */
418 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
419 &gpio6_base->setdataout);
420 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
421 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
423 /* Configure GPIOs to output */
424 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
425 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
426 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
429 beagle_display_init();
436 * Routine: set_muxconf_regs
437 * Description: Setting up the configuration Mux registers specific to the
438 * hardware. Many pins need to be moved from protect to primary
441 void set_muxconf_regs(void)
446 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
447 int board_mmc_init(bd_t *bis)
454 #ifdef CONFIG_USB_EHCI
456 #define GPIO_PHY_RESET 147
458 /* Reset is needed otherwise the kernel-driver will throw an error. */
459 int ehci_hcd_stop(void)
461 pr_debug("Resetting OMAP3 EHCI\n");
462 gpio_set_value(GPIO_PHY_RESET, 0);
463 writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
464 /* disable USB clocks */
465 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
466 sr32(&prcm_base->iclken_usbhost, 0, 1, 0);
467 sr32(&prcm_base->fclken_usbhost, 0, 2, 0);
468 sr32(&prcm_base->iclken3_core, 2, 1, 0);
469 sr32(&prcm_base->fclken3_core, 2, 1, 0);
473 /* Call usb_stop() before starting the kernel */
474 void show_boot_progress(int val)
481 * Initialize the OMAP3 EHCI controller and PHY on the BeagleBoard.
482 * Based on "drivers/usb/host/ehci-omap.c" from Linux 2.6.37.
483 * See there for additional Copyrights.
485 int ehci_hcd_init(void)
487 pr_debug("Initializing OMAP3 ECHI\n");
489 /* Put the PHY in RESET */
490 gpio_request(GPIO_PHY_RESET, "");
491 gpio_direction_output(GPIO_PHY_RESET, 0);
492 gpio_set_value(GPIO_PHY_RESET, 0);
494 /* Hold the PHY in RESET for enough time till DIR is high */
498 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
499 /* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
500 sr32(&prcm_base->iclken_usbhost, 0, 1, 1);
502 * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
503 * and USBHOST_120M_FCLK (USBHOST_FCLK2)
505 sr32(&prcm_base->fclken_usbhost, 0, 2, 3);
506 /* Enable USBTTL_ICLK */
507 sr32(&prcm_base->iclken3_core, 2, 1, 1);
508 /* Enable USBTTL_FCLK */
509 sr32(&prcm_base->fclken3_core, 2, 1, 1);
510 pr_debug("USB clocks enabled\n");
512 /* perform TLL soft reset, and wait until reset is complete */
513 writel(OMAP_USBTLL_SYSCONFIG_SOFTRESET,
514 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
515 /* Wait for TLL reset to complete */
516 while (!(readl(OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSSTATUS)
517 & OMAP_USBTLL_SYSSTATUS_RESETDONE));
518 pr_debug("TLL reset done\n");
520 writel(OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
521 OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
522 OMAP_USBTLL_SYSCONFIG_CACTIVITY,
523 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
525 /* Put UHH in NoIdle/NoStandby mode */
526 writel(OMAP_UHH_SYSCONFIG_ENAWAKEUP
527 | OMAP_UHH_SYSCONFIG_SIDLEMODE
528 | OMAP_UHH_SYSCONFIG_CACTIVITY
529 | OMAP_UHH_SYSCONFIG_MIDLEMODE,
530 OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
532 /* setup burst configurations */
533 writel(OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
534 | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
535 | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN,
536 OMAP3_UHH_BASE + OMAP_UHH_HOSTCONFIG);
540 * Hold the PHY in RESET for enough time till
541 * PHY is settled and ready
544 gpio_set_value(GPIO_PHY_RESET, 1);
546 hccr = (struct ehci_hccr *)(OMAP3_EHCI_BASE);
547 hcor = (struct ehci_hcor *)(OMAP3_EHCI_BASE + 0x10);
549 pr_debug("OMAP3 EHCI init done\n");
553 #endif /* CONFIG_USB_EHCI */
555 #ifndef CONFIG_SPL_BUILD
557 * This command returns the status of the user button on beagle xM
559 * Returns - 1 if button is held down
560 * 0 if button is not held down
562 int do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
568 * pass address parameter as argv[0] (aka command name),
569 * and all remaining args
571 switch (get_board_revision()) {
584 gpio_request(gpio, "");
585 gpio_direction_input(gpio);
586 printf("The user button is currently ");
587 if (gpio_get_value(gpio))
590 printf("PRESSED.\n");
595 printf("NOT pressed.\n");
601 /* -------------------------------------------------------------------- */
604 userbutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
605 "Return the status of the BeagleBoard USER button",