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 == 0xbc) {
170 /* Beagleboard Rev C5, 256MB DDR */
171 *mcfg = MICRON_V_MCFG_200(256 << 20);
172 *ctrla = MICRON_V_ACTIMA_200;
173 *ctrlb = MICRON_V_ACTIMB_200;
174 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
182 *mcfg = MICRON_V_MCFG_200(256 << 20);
183 *ctrla = MICRON_V_ACTIMA_200;
184 *ctrlb = MICRON_V_ACTIMB_200;
185 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
188 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
189 *ctrla = NUMONYX_V_ACTIMA_165;
190 *ctrlb = NUMONYX_V_ACTIMB_165;
191 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
195 /* Assume 128MB and Micron/165MHz timings to be safe */
196 *mcfg = MICRON_V_MCFG_165(128 << 20);
197 *ctrla = MICRON_V_ACTIMA_165;
198 *ctrlb = MICRON_V_ACTIMB_165;
199 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
205 * Routine: get_expansion_id
206 * Description: This function checks for expansion board by checking I2C
207 * bus 1 for the availability of an AT24C01B serial EEPROM.
208 * returns the device_vendor field from the EEPROM
210 unsigned int get_expansion_id(void)
212 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
214 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
215 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
216 i2c_set_bus_num(TWL4030_I2C_BUS);
217 return BEAGLE_NO_EEPROM;
220 /* read configuration data */
221 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
222 sizeof(expansion_config));
224 i2c_set_bus_num(TWL4030_I2C_BUS);
226 return expansion_config.device_vendor;
230 * Configure DSS to display background color on DVID
231 * Configure VENC to display color bar on S-Video
233 void beagle_display_init(void)
235 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
236 switch (get_board_revision()) {
240 omap3_dss_panel_config(&dvid_cfg);
246 omap3_dss_panel_config(&dvid_cfg_xm);
252 * Routine: misc_init_r
253 * Description: Configure board specific parts
255 int misc_init_r(void)
257 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
258 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
259 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
261 /* Enable i2c2 pullup resisters */
262 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
264 switch (get_board_revision()) {
266 printf("Beagle Rev Ax/Bx\n");
267 setenv("beaglerev", "AxBx");
270 printf("Beagle Rev C1/C2/C3\n");
271 setenv("beaglerev", "Cx");
275 printf("Beagle Rev C4\n");
276 setenv("beaglerev", "C4");
278 /* Set VAUX2 to 1.8V for EHCI PHY */
279 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
280 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
281 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
282 TWL4030_PM_RECEIVER_DEV_GRP_P1);
285 printf("Beagle xM Rev A\n");
286 setenv("beaglerev", "xMA");
288 /* Set VAUX2 to 1.8V for EHCI PHY */
289 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
290 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
291 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
292 TWL4030_PM_RECEIVER_DEV_GRP_P1);
295 printf("Beagle xM Rev B\n");
296 setenv("beaglerev", "xMB");
298 /* Set VAUX2 to 1.8V for EHCI PHY */
299 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
300 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
301 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
302 TWL4030_PM_RECEIVER_DEV_GRP_P1);
305 printf("Beagle xM Rev C\n");
306 setenv("beaglerev", "xMC");
308 /* Set VAUX2 to 1.8V for EHCI PHY */
309 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
310 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
311 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
312 TWL4030_PM_RECEIVER_DEV_GRP_P1);
315 printf("Beagle unknown 0x%02x\n", get_board_revision());
317 /* Set VAUX2 to 1.8V for EHCI PHY */
318 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
319 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
320 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
321 TWL4030_PM_RECEIVER_DEV_GRP_P1);
324 switch (get_expansion_id()) {
325 case TINCANTOOLS_ZIPPY:
326 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
327 expansion_config.revision,
328 expansion_config.fab_revision);
329 MUX_TINCANTOOLS_ZIPPY();
330 setenv("buddy", "zippy");
332 case TINCANTOOLS_ZIPPY2:
333 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
334 expansion_config.revision,
335 expansion_config.fab_revision);
336 MUX_TINCANTOOLS_ZIPPY();
337 setenv("buddy", "zippy2");
339 case TINCANTOOLS_TRAINER:
340 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
341 expansion_config.revision,
342 expansion_config.fab_revision);
343 MUX_TINCANTOOLS_ZIPPY();
344 MUX_TINCANTOOLS_TRAINER();
345 setenv("buddy", "trainer");
347 case TINCANTOOLS_SHOWDOG:
348 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
349 expansion_config.revision,
350 expansion_config.fab_revision);
351 /* Place holder for DSS2 definition for showdog lcd */
352 setenv("defaultdisplay", "showdoglcd");
353 setenv("buddy", "showdog");
355 case KBADC_BEAGLEFPGA:
356 printf("Recognized KBADC Beagle FPGA board\n");
357 MUX_KBADC_BEAGLEFPGA();
358 setenv("buddy", "beaglefpga");
361 printf("Recognized Liquidware BeagleTouch board\n");
362 setenv("buddy", "beagletouch");
365 printf("Recognized Brainmux LCDog board\n");
366 setenv("buddy", "lcdog");
368 case BRAINMUX_LCDOGTOUCH:
369 printf("Recognized Brainmux LCDog Touch board\n");
370 setenv("buddy", "lcdogtouch");
373 printf("Recognized BeagleBoardToys WiFi board\n");
375 setenv("buddy", "bbtoys-wifi");
378 printf("Recognized BeagleBoardToys VGA board\n");
381 printf("Recognized BeagleBoardToys LCD board\n");
384 printf("Recognized bct electronic GmbH brettl3 board\n");
386 case BEAGLE_NO_EEPROM:
387 printf("No EEPROM on expansion board\n");
388 setenv("buddy", "none");
391 printf("Unrecognized expansion board: %x\n",
392 expansion_config.device_vendor);
393 setenv("buddy", "unknown");
396 if (expansion_config.content == 1)
397 setenv(expansion_config.env_var, expansion_config.env_setting);
399 twl4030_power_init();
400 switch (get_board_revision()) {
403 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
406 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
410 /* Set GPIO states before they are made outputs */
411 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
412 &gpio6_base->setdataout);
413 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
414 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
416 /* Configure GPIOs to output */
417 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
418 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
419 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
422 beagle_display_init();
429 * Routine: set_muxconf_regs
430 * Description: Setting up the configuration Mux registers specific to the
431 * hardware. Many pins need to be moved from protect to primary
434 void set_muxconf_regs(void)
439 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
440 int board_mmc_init(bd_t *bis)
447 #ifdef CONFIG_USB_EHCI
449 #define GPIO_PHY_RESET 147
451 /* Reset is needed otherwise the kernel-driver will throw an error. */
452 int ehci_hcd_stop(void)
454 pr_debug("Resetting OMAP3 EHCI\n");
455 gpio_set_value(GPIO_PHY_RESET, 0);
456 writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
457 /* disable USB clocks */
458 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
459 sr32(&prcm_base->iclken_usbhost, 0, 1, 0);
460 sr32(&prcm_base->fclken_usbhost, 0, 2, 0);
461 sr32(&prcm_base->iclken3_core, 2, 1, 0);
462 sr32(&prcm_base->fclken3_core, 2, 1, 0);
466 /* Call usb_stop() before starting the kernel */
467 void show_boot_progress(int val)
474 * Initialize the OMAP3 EHCI controller and PHY on the BeagleBoard.
475 * Based on "drivers/usb/host/ehci-omap.c" from Linux 2.6.37.
476 * See there for additional Copyrights.
478 int ehci_hcd_init(void)
480 pr_debug("Initializing OMAP3 ECHI\n");
482 /* Put the PHY in RESET */
483 gpio_request(GPIO_PHY_RESET, "");
484 gpio_direction_output(GPIO_PHY_RESET, 0);
485 gpio_set_value(GPIO_PHY_RESET, 0);
487 /* Hold the PHY in RESET for enough time till DIR is high */
491 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
492 /* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
493 sr32(&prcm_base->iclken_usbhost, 0, 1, 1);
495 * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
496 * and USBHOST_120M_FCLK (USBHOST_FCLK2)
498 sr32(&prcm_base->fclken_usbhost, 0, 2, 3);
499 /* Enable USBTTL_ICLK */
500 sr32(&prcm_base->iclken3_core, 2, 1, 1);
501 /* Enable USBTTL_FCLK */
502 sr32(&prcm_base->fclken3_core, 2, 1, 1);
503 pr_debug("USB clocks enabled\n");
505 /* perform TLL soft reset, and wait until reset is complete */
506 writel(OMAP_USBTLL_SYSCONFIG_SOFTRESET,
507 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
508 /* Wait for TLL reset to complete */
509 while (!(readl(OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSSTATUS)
510 & OMAP_USBTLL_SYSSTATUS_RESETDONE));
511 pr_debug("TLL reset done\n");
513 writel(OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
514 OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
515 OMAP_USBTLL_SYSCONFIG_CACTIVITY,
516 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
518 /* Put UHH in NoIdle/NoStandby mode */
519 writel(OMAP_UHH_SYSCONFIG_ENAWAKEUP
520 | OMAP_UHH_SYSCONFIG_SIDLEMODE
521 | OMAP_UHH_SYSCONFIG_CACTIVITY
522 | OMAP_UHH_SYSCONFIG_MIDLEMODE,
523 OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
525 /* setup burst configurations */
526 writel(OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
527 | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
528 | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN,
529 OMAP3_UHH_BASE + OMAP_UHH_HOSTCONFIG);
533 * Hold the PHY in RESET for enough time till
534 * PHY is settled and ready
537 gpio_set_value(GPIO_PHY_RESET, 1);
539 hccr = (struct ehci_hccr *)(OMAP3_EHCI_BASE);
540 hcor = (struct ehci_hcor *)(OMAP3_EHCI_BASE + 0x10);
542 pr_debug("OMAP3 EHCI init done\n");
546 #endif /* CONFIG_USB_EHCI */
548 #ifndef CONFIG_SPL_BUILD
550 * This command returns the status of the user button on beagle xM
552 * Returns - 1 if button is held down
553 * 0 if button is not held down
555 int do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
561 * pass address parameter as argv[0] (aka command name),
562 * and all remaining args
564 switch (get_board_revision()) {
577 gpio_request(gpio, "");
578 gpio_direction_input(gpio);
579 printf("The user button is currently ");
580 if (gpio_get_value(gpio))
583 printf("PRESSED.\n");
588 printf("NOT pressed.\n");
594 /* -------------------------------------------------------------------- */
597 userbutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
598 "Return the status of the BeagleBoard USER button",