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 BEAGLE_NO_EEPROM 0xffffffff
76 DECLARE_GLOBAL_DATA_PTR;
79 unsigned int device_vendor;
80 unsigned char revision;
81 unsigned char content;
89 * Description: Early hardware init.
93 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
94 /* board id for Linux */
95 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
97 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
99 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
100 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
107 * Routine: get_board_revision
108 * Description: Detect if we are running on a Beagle revision Ax/Bx,
109 * C1/2/3, C4 or xM. This can be done by reading
110 * the level of GPIO173, GPIO172 and GPIO171. This should
112 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
113 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
114 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4
115 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM
117 int get_board_revision(void)
121 if (!gpio_request(171, "") &&
122 !gpio_request(172, "") &&
123 !gpio_request(173, "")) {
125 gpio_direction_input(171);
126 gpio_direction_input(172);
127 gpio_direction_input(173);
129 revision = gpio_get_value(173) << 2 |
130 gpio_get_value(172) << 1 |
133 printf("Error: unable to acquire board revision GPIOs\n");
140 #ifdef CONFIG_SPL_BUILD
142 * Routine: get_board_mem_timings
143 * Description: If we use SPL then there is no x-loader nor config header
144 * so we have to setup the DDR timings ourself on both banks.
146 void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
152 * We need to identify what PoP memory is on the board so that
153 * we know what timings to use. If we can't identify it then
154 * we know it's an xM. To map the ID values please see nand_ids.c
156 identify_nand_chip(&pop_mfr, &pop_id);
158 *mr = MICRON_V_MR_165;
159 switch (get_board_revision()) {
161 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
163 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
164 *ctrla = NUMONYX_V_ACTIMA_165;
165 *ctrlb = NUMONYX_V_ACTIMB_165;
166 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
168 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
169 /* Beagleboard Rev C5, 256MB DDR */
170 *mcfg = MICRON_V_MCFG_200(256 << 20);
171 *ctrla = MICRON_V_ACTIMA_200;
172 *ctrlb = MICRON_V_ACTIMB_200;
173 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
181 *mcfg = MICRON_V_MCFG_200(256 << 20);
182 *ctrla = MICRON_V_ACTIMA_200;
183 *ctrlb = MICRON_V_ACTIMB_200;
184 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
187 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
188 *ctrla = NUMONYX_V_ACTIMA_165;
189 *ctrlb = NUMONYX_V_ACTIMB_165;
190 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
194 /* Assume 128MB and Micron/165MHz timings to be safe */
195 *mcfg = MICRON_V_MCFG_165(128 << 20);
196 *ctrla = MICRON_V_ACTIMA_165;
197 *ctrlb = MICRON_V_ACTIMB_165;
198 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
204 * Routine: get_expansion_id
205 * Description: This function checks for expansion board by checking I2C
206 * bus 1 for the availability of an AT24C01B serial EEPROM.
207 * returns the device_vendor field from the EEPROM
209 unsigned int get_expansion_id(void)
211 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
213 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
214 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
215 i2c_set_bus_num(TWL4030_I2C_BUS);
216 return BEAGLE_NO_EEPROM;
219 /* read configuration data */
220 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
221 sizeof(expansion_config));
223 i2c_set_bus_num(TWL4030_I2C_BUS);
225 return expansion_config.device_vendor;
229 * Configure DSS to display background color on DVID
230 * Configure VENC to display color bar on S-Video
232 void beagle_display_init(void)
234 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
235 switch (get_board_revision()) {
239 omap3_dss_panel_config(&dvid_cfg);
245 omap3_dss_panel_config(&dvid_cfg_xm);
251 * Routine: misc_init_r
252 * Description: Configure board specific parts
254 int misc_init_r(void)
256 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
257 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
258 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
260 /* Enable i2c2 pullup resisters */
261 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
263 switch (get_board_revision()) {
265 printf("Beagle Rev Ax/Bx\n");
266 setenv("beaglerev", "AxBx");
269 printf("Beagle Rev C1/C2/C3\n");
270 setenv("beaglerev", "Cx");
274 printf("Beagle Rev C4\n");
275 setenv("beaglerev", "C4");
277 /* Set VAUX2 to 1.8V for EHCI PHY */
278 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
279 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
280 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
281 TWL4030_PM_RECEIVER_DEV_GRP_P1);
284 printf("Beagle xM Rev A\n");
285 setenv("beaglerev", "xMA");
287 /* Set VAUX2 to 1.8V for EHCI PHY */
288 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
289 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
290 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
291 TWL4030_PM_RECEIVER_DEV_GRP_P1);
294 printf("Beagle xM Rev B\n");
295 setenv("beaglerev", "xMB");
297 /* Set VAUX2 to 1.8V for EHCI PHY */
298 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
299 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
300 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
301 TWL4030_PM_RECEIVER_DEV_GRP_P1);
304 printf("Beagle xM Rev C\n");
305 setenv("beaglerev", "xMC");
307 /* Set VAUX2 to 1.8V for EHCI PHY */
308 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
309 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
310 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
311 TWL4030_PM_RECEIVER_DEV_GRP_P1);
314 printf("Beagle unknown 0x%02x\n", get_board_revision());
316 /* Set VAUX2 to 1.8V for EHCI PHY */
317 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
318 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
319 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
320 TWL4030_PM_RECEIVER_DEV_GRP_P1);
323 switch (get_expansion_id()) {
324 case TINCANTOOLS_ZIPPY:
325 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
326 expansion_config.revision,
327 expansion_config.fab_revision);
328 MUX_TINCANTOOLS_ZIPPY();
329 setenv("buddy", "zippy");
331 case TINCANTOOLS_ZIPPY2:
332 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
333 expansion_config.revision,
334 expansion_config.fab_revision);
335 MUX_TINCANTOOLS_ZIPPY();
336 setenv("buddy", "zippy2");
338 case TINCANTOOLS_TRAINER:
339 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
340 expansion_config.revision,
341 expansion_config.fab_revision);
342 MUX_TINCANTOOLS_ZIPPY();
343 MUX_TINCANTOOLS_TRAINER();
344 setenv("buddy", "trainer");
346 case TINCANTOOLS_SHOWDOG:
347 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
348 expansion_config.revision,
349 expansion_config.fab_revision);
350 /* Place holder for DSS2 definition for showdog lcd */
351 setenv("defaultdisplay", "showdoglcd");
352 setenv("buddy", "showdog");
354 case KBADC_BEAGLEFPGA:
355 printf("Recognized KBADC Beagle FPGA board\n");
356 MUX_KBADC_BEAGLEFPGA();
357 setenv("buddy", "beaglefpga");
360 printf("Recognized Liquidware BeagleTouch board\n");
361 setenv("buddy", "beagletouch");
364 printf("Recognized Brainmux LCDog board\n");
365 setenv("buddy", "lcdog");
367 case BRAINMUX_LCDOGTOUCH:
368 printf("Recognized Brainmux LCDog Touch board\n");
369 setenv("buddy", "lcdogtouch");
372 printf("Recognized BeagleBoardToys WiFi board\n");
374 setenv("buddy", "bbtoys-wifi");
377 printf("Recognized BeagleBoardToys VGA board\n");
380 printf("Recognized BeagleBoardToys LCD board\n");
382 case BEAGLE_NO_EEPROM:
383 printf("No EEPROM on expansion board\n");
384 setenv("buddy", "none");
387 printf("Unrecognized expansion board: %x\n",
388 expansion_config.device_vendor);
389 setenv("buddy", "unknown");
392 if (expansion_config.content == 1)
393 setenv(expansion_config.env_var, expansion_config.env_setting);
395 twl4030_power_init();
396 switch (get_board_revision()) {
399 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
402 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
406 /* Set GPIO states before they are made outputs */
407 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
408 &gpio6_base->setdataout);
409 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
410 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
412 /* Configure GPIOs to output */
413 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
414 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
415 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
418 beagle_display_init();
425 * Routine: set_muxconf_regs
426 * Description: Setting up the configuration Mux registers specific to the
427 * hardware. Many pins need to be moved from protect to primary
430 void set_muxconf_regs(void)
435 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
436 int board_mmc_init(bd_t *bis)
443 #ifdef CONFIG_USB_EHCI
445 #define GPIO_PHY_RESET 147
447 /* Reset is needed otherwise the kernel-driver will throw an error. */
448 int ehci_hcd_stop(void)
450 pr_debug("Resetting OMAP3 EHCI\n");
451 gpio_set_value(GPIO_PHY_RESET, 0);
452 writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
453 /* disable USB clocks */
454 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
455 sr32(&prcm_base->iclken_usbhost, 0, 1, 0);
456 sr32(&prcm_base->fclken_usbhost, 0, 2, 0);
457 sr32(&prcm_base->iclken3_core, 2, 1, 0);
458 sr32(&prcm_base->fclken3_core, 2, 1, 0);
462 /* Call usb_stop() before starting the kernel */
463 void show_boot_progress(int val)
470 * Initialize the OMAP3 EHCI controller and PHY on the BeagleBoard.
471 * Based on "drivers/usb/host/ehci-omap.c" from Linux 2.6.37.
472 * See there for additional Copyrights.
474 int ehci_hcd_init(void)
476 pr_debug("Initializing OMAP3 ECHI\n");
478 /* Put the PHY in RESET */
479 gpio_request(GPIO_PHY_RESET, "");
480 gpio_direction_output(GPIO_PHY_RESET, 0);
481 gpio_set_value(GPIO_PHY_RESET, 0);
483 /* Hold the PHY in RESET for enough time till DIR is high */
487 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
488 /* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
489 sr32(&prcm_base->iclken_usbhost, 0, 1, 1);
491 * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
492 * and USBHOST_120M_FCLK (USBHOST_FCLK2)
494 sr32(&prcm_base->fclken_usbhost, 0, 2, 3);
495 /* Enable USBTTL_ICLK */
496 sr32(&prcm_base->iclken3_core, 2, 1, 1);
497 /* Enable USBTTL_FCLK */
498 sr32(&prcm_base->fclken3_core, 2, 1, 1);
499 pr_debug("USB clocks enabled\n");
501 /* perform TLL soft reset, and wait until reset is complete */
502 writel(OMAP_USBTLL_SYSCONFIG_SOFTRESET,
503 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
504 /* Wait for TLL reset to complete */
505 while (!(readl(OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSSTATUS)
506 & OMAP_USBTLL_SYSSTATUS_RESETDONE));
507 pr_debug("TLL reset done\n");
509 writel(OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
510 OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
511 OMAP_USBTLL_SYSCONFIG_CACTIVITY,
512 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
514 /* Put UHH in NoIdle/NoStandby mode */
515 writel(OMAP_UHH_SYSCONFIG_ENAWAKEUP
516 | OMAP_UHH_SYSCONFIG_SIDLEMODE
517 | OMAP_UHH_SYSCONFIG_CACTIVITY
518 | OMAP_UHH_SYSCONFIG_MIDLEMODE,
519 OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
521 /* setup burst configurations */
522 writel(OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
523 | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
524 | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN,
525 OMAP3_UHH_BASE + OMAP_UHH_HOSTCONFIG);
529 * Hold the PHY in RESET for enough time till
530 * PHY is settled and ready
533 gpio_set_value(GPIO_PHY_RESET, 1);
535 hccr = (struct ehci_hccr *)(OMAP3_EHCI_BASE);
536 hcor = (struct ehci_hcor *)(OMAP3_EHCI_BASE + 0x10);
538 pr_debug("OMAP3 EHCI init done\n");
542 #endif /* CONFIG_USB_EHCI */
544 #ifndef CONFIG_SPL_BUILD
546 * This command returns the status of the user button on beagle xM
548 * Returns - 1 if button is held down
549 * 0 if button is not held down
551 int do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
557 * pass address parameter as argv[0] (aka command name),
558 * and all remaining args
560 switch (get_board_revision()) {
573 gpio_request(gpio, "");
574 gpio_direction_input(gpio);
575 printf("The user button is currently ");
576 if (gpio_get_value(gpio))
579 printf("PRESSED.\n");
584 printf("NOT pressed.\n");
590 /* -------------------------------------------------------------------- */
593 userbutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
594 "Return the status of the BeagleBoard USER button",