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Dirk Behme2781f802009-01-27 18:19:12 +01001/*
2 * (C) Copyright 2004-2008
3 * Texas Instruments, <www.ti.com>
4 *
5 * Author :
6 * Sunil Kumar <sunilsaini05@gmail.com>
7 * Shashi Ranjan <shashiranjanmca05@gmail.com>
8 *
9 * Derived from Beagle Board and 3430 SDP code by
10 * Richard Woodruff <r-woodruff2@ti.com>
11 * Syed Mohammed Khasim <khasim@ti.com>
12 *
13 *
14 * See file CREDITS for list of people who contributed to this
15 * project.
16 *
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.
21 *
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.
26 *
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,
30 * MA 02111-1307 USA
31 */
32#include <common.h>
Jason Kridnerc3ef8bc2011-04-18 17:23:35 -040033#ifdef CONFIG_STATUS_LED
34#include <status_led.h>
35#endif
Tom Rix0f2a8042009-06-28 12:52:30 -050036#include <twl4030.h>
Dirk Behme2781f802009-01-27 18:19:12 +010037#include <asm/io.h>
Steve Sakoman57c62412010-09-19 21:19:48 -070038#include <asm/arch/mmc_host_def.h>
Dirk Behme2781f802009-01-27 18:19:12 +010039#include <asm/arch/mux.h>
40#include <asm/arch/sys_proto.h>
Sanjeev Premi7b3dc822011-09-08 10:51:01 -040041#include <asm/gpio.h>
Dirk Behme2781f802009-01-27 18:19:12 +010042#include <asm/mach-types.h>
Alexander Holler8f6f15c2011-04-19 09:30:35 -040043#ifdef CONFIG_USB_EHCI
44#include <usb.h>
45#include <asm/arch/clocks.h>
46#include <asm/arch/clocks_omap3.h>
47#include <asm/arch/ehci_omap3.h>
48/* from drivers/usb/host/ehci-core.h */
49extern struct ehci_hccr *hccr;
50extern volatile struct ehci_hcor *hcor;
51#endif
Dirk Behme2781f802009-01-27 18:19:12 +010052#include "beagle.h"
Jason Kridner85a08fb2010-07-21 07:41:25 -050053#include <command.h>
Dirk Behme2781f802009-01-27 18:19:12 +010054
Alexander Holler8f6f15c2011-04-19 09:30:35 -040055#define pr_debug(fmt, args...) debug(fmt, ##args)
56
Koen Kooib6241c22010-09-20 10:21:33 -070057#define TWL4030_I2C_BUS 0
58#define EXPANSION_EEPROM_I2C_BUS 1
59#define EXPANSION_EEPROM_I2C_ADDRESS 0x50
60
61#define TINCANTOOLS_ZIPPY 0x01000100
62#define TINCANTOOLS_ZIPPY2 0x02000100
63#define TINCANTOOLS_TRAINER 0x04000100
64#define TINCANTOOLS_SHOWDOG 0x03000100
65#define KBADC_BEAGLEFPGA 0x01000600
Koen Kooi3d5dac62011-04-18 17:29:35 -040066#define LW_BEAGLETOUCH 0x01000700
67#define BRAINMUX_LCDOG 0x01000800
68#define BRAINMUX_LCDOGTOUCH 0x02000800
69#define BBTOYS_WIFI 0x01000B00
70#define BBTOYS_VGA 0x02000B00
71#define BBTOYS_LCD 0x03000B00
Koen Kooib6241c22010-09-20 10:21:33 -070072#define BEAGLE_NO_EEPROM 0xffffffff
73
John Rigby0d21ed02010-12-20 18:27:51 -070074DECLARE_GLOBAL_DATA_PTR;
75
Koen Kooib6241c22010-09-20 10:21:33 -070076static struct {
77 unsigned int device_vendor;
78 unsigned char revision;
79 unsigned char content;
80 char fab_revision[8];
81 char env_var[16];
82 char env_setting[64];
83} expansion_config;
84
Tom Rix558bb832009-04-01 22:02:20 -050085/*
Dirk Behme2781f802009-01-27 18:19:12 +010086 * Routine: board_init
87 * Description: Early hardware init.
Tom Rix558bb832009-04-01 22:02:20 -050088 */
Dirk Behme2781f802009-01-27 18:19:12 +010089int board_init(void)
90{
Dirk Behme2781f802009-01-27 18:19:12 +010091 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
92 /* board id for Linux */
93 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
94 /* boot param addr */
95 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
96
Jason Kridnerc3ef8bc2011-04-18 17:23:35 -040097#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
98 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
99#endif
100
Dirk Behme2781f802009-01-27 18:19:12 +0100101 return 0;
102}
103
Tom Rix558bb832009-04-01 22:02:20 -0500104/*
Steve Sakoman3ca33762010-08-12 15:17:37 -0700105 * Routine: get_board_revision
106 * Description: Detect if we are running on a Beagle revision Ax/Bx,
Steve Sakomanac929952010-08-19 20:56:11 -0700107 * C1/2/3, C4 or xM. This can be done by reading
Steve Sakoman3ca33762010-08-12 15:17:37 -0700108 * 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
Steve Sakomanac929952010-08-19 20:56:11 -0700113 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM
Tom Rix558bb832009-04-01 22:02:20 -0500114 */
Steve Sakoman3ca33762010-08-12 15:17:37 -0700115int get_board_revision(void)
Dirk Behme78716112009-02-12 18:55:41 +0100116{
Steve Sakoman3ca33762010-08-12 15:17:37 -0700117 int revision;
Dirk Behme78716112009-02-12 18:55:41 +0100118
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400119 if (!gpio_request(171, "") &&
120 !gpio_request(172, "") &&
121 !gpio_request(173, "")) {
Dirk Behme78716112009-02-12 18:55:41 +0100122
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400123 gpio_direction_input(171);
124 gpio_direction_input(172);
125 gpio_direction_input(173);
Dirk Behme78716112009-02-12 18:55:41 +0100126
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400127 revision = gpio_get_value(173) << 2 |
128 gpio_get_value(172) << 1 |
129 gpio_get_value(171);
Steve Sakoman3ca33762010-08-12 15:17:37 -0700130
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400131 gpio_free(171);
132 gpio_free(172);
133 gpio_free(173);
Steve Sakoman3ca33762010-08-12 15:17:37 -0700134 } else {
135 printf("Error: unable to acquire board revision GPIOs\n");
136 revision = -1;
Tom Rix70d05412009-06-03 01:53:57 -0500137 }
Dirk Behme78716112009-02-12 18:55:41 +0100138
Steve Sakoman3ca33762010-08-12 15:17:37 -0700139 return revision;
Dirk Behme78716112009-02-12 18:55:41 +0100140}
141
Tom Rix558bb832009-04-01 22:02:20 -0500142/*
Koen Kooib6241c22010-09-20 10:21:33 -0700143 * Routine: get_expansion_id
144 * Description: This function checks for expansion board by checking I2C
145 * bus 1 for the availability of an AT24C01B serial EEPROM.
146 * returns the device_vendor field from the EEPROM
147 */
148unsigned int get_expansion_id(void)
149{
150 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
151
152 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
153 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
154 i2c_set_bus_num(TWL4030_I2C_BUS);
155 return BEAGLE_NO_EEPROM;
156 }
157
158 /* read configuration data */
159 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
160 sizeof(expansion_config));
161
162 i2c_set_bus_num(TWL4030_I2C_BUS);
163
164 return expansion_config.device_vendor;
165}
166
167/*
Jason Kridnerb8f6ac52011-04-19 14:01:13 -0500168 * Configure DSS to display background color on DVID
169 * Configure VENC to display color bar on S-Video
170 */
171void beagle_display_init(void)
172{
173 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
174 switch (get_board_revision()) {
175 case REVISION_AXBX:
176 case REVISION_CX:
177 case REVISION_C4:
178 omap3_dss_panel_config(&dvid_cfg);
179 break;
180 case REVISION_XM_A:
181 case REVISION_XM_B:
182 case REVISION_XM_C:
183 default:
184 omap3_dss_panel_config(&dvid_cfg_xm);
185 break;
186 }
187}
188
189/*
Dirk Behme2781f802009-01-27 18:19:12 +0100190 * Routine: misc_init_r
191 * Description: Configure board specific parts
Tom Rix558bb832009-04-01 22:02:20 -0500192 */
Dirk Behme2781f802009-01-27 18:19:12 +0100193int misc_init_r(void)
194{
Dirk Behmedc7af202009-08-08 09:30:21 +0200195 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
196 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
Jason Kridner40aebca2011-04-20 13:52:26 +0000197 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
Steve Kipiszbf7438a2011-04-18 17:27:00 -0400198
199 /* Enable i2c2 pullup resisters */
200 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
Dirk Behme2781f802009-01-27 18:19:12 +0100201
Steve Sakoman3ca33762010-08-12 15:17:37 -0700202 switch (get_board_revision()) {
203 case REVISION_AXBX:
204 printf("Beagle Rev Ax/Bx\n");
205 setenv("beaglerev", "AxBx");
Steve Sakoman3ca33762010-08-12 15:17:37 -0700206 break;
207 case REVISION_CX:
208 printf("Beagle Rev C1/C2/C3\n");
209 setenv("beaglerev", "Cx");
Steve Sakoman3ca33762010-08-12 15:17:37 -0700210 MUX_BEAGLE_C();
211 break;
212 case REVISION_C4:
213 printf("Beagle Rev C4\n");
Steve Sakomanac929952010-08-19 20:56:11 -0700214 setenv("beaglerev", "C4");
Steve Sakoman3ca33762010-08-12 15:17:37 -0700215 MUX_BEAGLE_C();
216 /* Set VAUX2 to 1.8V for EHCI PHY */
217 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
218 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
219 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
220 TWL4030_PM_RECEIVER_DEV_GRP_P1);
221 break;
Koen Kooi5b8018c2011-04-18 17:28:32 -0400222 case REVISION_XM_A:
Steve Sakomanac929952010-08-19 20:56:11 -0700223 printf("Beagle xM Rev A\n");
224 setenv("beaglerev", "xMA");
Steve Sakomanac929952010-08-19 20:56:11 -0700225 MUX_BEAGLE_XM();
226 /* Set VAUX2 to 1.8V for EHCI PHY */
227 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
228 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
229 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
230 TWL4030_PM_RECEIVER_DEV_GRP_P1);
231 break;
Koen Kooi5b8018c2011-04-18 17:28:32 -0400232 case REVISION_XM_B:
233 printf("Beagle xM Rev B\n");
234 setenv("beaglerev", "xMB");
235 MUX_BEAGLE_XM();
236 /* Set VAUX2 to 1.8V for EHCI PHY */
237 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
238 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
239 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
240 TWL4030_PM_RECEIVER_DEV_GRP_P1);
241 break;
Koen Kooi63308442011-06-17 09:37:37 +0200242 case REVISION_XM_C:
243 printf("Beagle xM Rev C\n");
244 setenv("beaglerev", "xMC");
245 MUX_BEAGLE_XM();
246 /* Set VAUX2 to 1.8V for EHCI PHY */
247 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
248 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
249 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
250 TWL4030_PM_RECEIVER_DEV_GRP_P1);
251 break;
Steve Sakoman3ca33762010-08-12 15:17:37 -0700252 default:
253 printf("Beagle unknown 0x%02x\n", get_board_revision());
Koen Kooi5b8018c2011-04-18 17:28:32 -0400254 MUX_BEAGLE_XM();
255 /* Set VAUX2 to 1.8V for EHCI PHY */
256 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
257 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
258 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
259 TWL4030_PM_RECEIVER_DEV_GRP_P1);
Steve Sakoman3ca33762010-08-12 15:17:37 -0700260 }
261
Koen Kooib6241c22010-09-20 10:21:33 -0700262 switch (get_expansion_id()) {
263 case TINCANTOOLS_ZIPPY:
264 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
265 expansion_config.revision,
266 expansion_config.fab_revision);
267 MUX_TINCANTOOLS_ZIPPY();
268 setenv("buddy", "zippy");
269 break;
270 case TINCANTOOLS_ZIPPY2:
271 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
272 expansion_config.revision,
273 expansion_config.fab_revision);
274 MUX_TINCANTOOLS_ZIPPY();
275 setenv("buddy", "zippy2");
276 break;
277 case TINCANTOOLS_TRAINER:
278 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
279 expansion_config.revision,
280 expansion_config.fab_revision);
281 MUX_TINCANTOOLS_ZIPPY();
282 MUX_TINCANTOOLS_TRAINER();
283 setenv("buddy", "trainer");
284 break;
285 case TINCANTOOLS_SHOWDOG:
286 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
287 expansion_config.revision,
288 expansion_config.fab_revision);
289 /* Place holder for DSS2 definition for showdog lcd */
290 setenv("defaultdisplay", "showdoglcd");
291 setenv("buddy", "showdog");
292 break;
293 case KBADC_BEAGLEFPGA:
294 printf("Recognized KBADC Beagle FPGA board\n");
295 MUX_KBADC_BEAGLEFPGA();
296 setenv("buddy", "beaglefpga");
297 break;
Koen Kooi3d5dac62011-04-18 17:29:35 -0400298 case LW_BEAGLETOUCH:
299 printf("Recognized Liquidware BeagleTouch board\n");
300 setenv("buddy", "beagletouch");
301 break;
302 case BRAINMUX_LCDOG:
303 printf("Recognized Brainmux LCDog board\n");
304 setenv("buddy", "lcdog");
305 break;
306 case BRAINMUX_LCDOGTOUCH:
307 printf("Recognized Brainmux LCDog Touch board\n");
308 setenv("buddy", "lcdogtouch");
309 break;
310 case BBTOYS_WIFI:
311 printf("Recognized BeagleBoardToys WiFi board\n");
312 MUX_BBTOYS_WIFI()
313 setenv("buddy", "bbtoys-wifi");
314 break;;
315 case BBTOYS_VGA:
316 printf("Recognized BeagleBoardToys VGA board\n");
317 break;;
318 case BBTOYS_LCD:
319 printf("Recognized BeagleBoardToys LCD board\n");
320 break;;
Koen Kooib6241c22010-09-20 10:21:33 -0700321 case BEAGLE_NO_EEPROM:
322 printf("No EEPROM on expansion board\n");
323 setenv("buddy", "none");
324 break;
325 default:
326 printf("Unrecognized expansion board: %x\n",
327 expansion_config.device_vendor);
328 setenv("buddy", "unknown");
329 }
330
331 if (expansion_config.content == 1)
332 setenv(expansion_config.env_var, expansion_config.env_setting);
333
Tom Rix0f2a8042009-06-28 12:52:30 -0500334 twl4030_power_init();
Christian Spielberger3be83dc2011-08-24 17:17:31 -0500335 switch (get_board_revision()) {
336 case REVISION_XM_A:
337 case REVISION_XM_B:
338 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
339 break;
340 default:
341 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
342 break;
343 }
Dirk Behme2781f802009-01-27 18:19:12 +0100344
Bob Feretich0ad89512011-02-24 13:16:44 +0000345 /* Set GPIO states before they are made outputs */
Dirk Behme2781f802009-01-27 18:19:12 +0100346 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
347 &gpio6_base->setdataout);
348 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
349 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
350
Bob Feretich0ad89512011-02-24 13:16:44 +0000351 /* Configure GPIOs to output */
352 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
353 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
354 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
355
Dirk Behme12dbcf62009-03-12 19:30:50 +0100356 dieid_num_r();
Jason Kridnerb8f6ac52011-04-19 14:01:13 -0500357 beagle_display_init();
358 omap3_dss_enable();
Dirk Behme12dbcf62009-03-12 19:30:50 +0100359
Dirk Behme2781f802009-01-27 18:19:12 +0100360 return 0;
361}
362
Tom Rix558bb832009-04-01 22:02:20 -0500363/*
Dirk Behme2781f802009-01-27 18:19:12 +0100364 * Routine: set_muxconf_regs
365 * Description: Setting up the configuration Mux registers specific to the
366 * hardware. Many pins need to be moved from protect to primary
367 * mode.
Tom Rix558bb832009-04-01 22:02:20 -0500368 */
Dirk Behme2781f802009-01-27 18:19:12 +0100369void set_muxconf_regs(void)
370{
371 MUX_BEAGLE();
Dirk Behme2781f802009-01-27 18:19:12 +0100372}
Steve Sakoman57c62412010-09-19 21:19:48 -0700373
374#ifdef CONFIG_GENERIC_MMC
375int board_mmc_init(bd_t *bis)
376{
377 omap_mmc_init(0);
378 return 0;
379}
380#endif
Alexander Holler8f6f15c2011-04-19 09:30:35 -0400381
382#ifdef CONFIG_USB_EHCI
383
384#define GPIO_PHY_RESET 147
385
386/* Reset is needed otherwise the kernel-driver will throw an error. */
387int ehci_hcd_stop(void)
388{
389 pr_debug("Resetting OMAP3 EHCI\n");
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400390 gpio_set_value(GPIO_PHY_RESET, 0);
Alexander Holler8f6f15c2011-04-19 09:30:35 -0400391 writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
Koen Kooif1f731f2011-06-17 09:26:17 +0200392 /* disable USB clocks */
393 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
394 sr32(&prcm_base->iclken_usbhost, 0, 1, 0);
395 sr32(&prcm_base->fclken_usbhost, 0, 2, 0);
396 sr32(&prcm_base->iclken3_core, 2, 1, 0);
397 sr32(&prcm_base->fclken3_core, 2, 1, 0);
Alexander Holler8f6f15c2011-04-19 09:30:35 -0400398 return 0;
399}
400
401/* Call usb_stop() before starting the kernel */
402void show_boot_progress(int val)
403{
404 if(val == 15)
405 usb_stop();
406}
407
408/*
409 * Initialize the OMAP3 EHCI controller and PHY on the BeagleBoard.
410 * Based on "drivers/usb/host/ehci-omap.c" from Linux 2.6.37.
411 * See there for additional Copyrights.
412 */
413int ehci_hcd_init(void)
414{
415 pr_debug("Initializing OMAP3 ECHI\n");
416
417 /* Put the PHY in RESET */
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400418 gpio_request(GPIO_PHY_RESET, "");
419 gpio_direction_output(GPIO_PHY_RESET, 0);
420 gpio_set_value(GPIO_PHY_RESET, 0);
Alexander Holler8f6f15c2011-04-19 09:30:35 -0400421
422 /* Hold the PHY in RESET for enough time till DIR is high */
423 /* Refer: ISSUE1 */
424 udelay(10);
425
426 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
427 /* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
428 sr32(&prcm_base->iclken_usbhost, 0, 1, 1);
429 /*
430 * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
431 * and USBHOST_120M_FCLK (USBHOST_FCLK2)
432 */
433 sr32(&prcm_base->fclken_usbhost, 0, 2, 3);
434 /* Enable USBTTL_ICLK */
435 sr32(&prcm_base->iclken3_core, 2, 1, 1);
436 /* Enable USBTTL_FCLK */
437 sr32(&prcm_base->fclken3_core, 2, 1, 1);
438 pr_debug("USB clocks enabled\n");
439
440 /* perform TLL soft reset, and wait until reset is complete */
441 writel(OMAP_USBTLL_SYSCONFIG_SOFTRESET,
442 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
443 /* Wait for TLL reset to complete */
444 while (!(readl(OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSSTATUS)
445 & OMAP_USBTLL_SYSSTATUS_RESETDONE));
446 pr_debug("TLL reset done\n");
447
448 writel(OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
449 OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
450 OMAP_USBTLL_SYSCONFIG_CACTIVITY,
451 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
452
453 /* Put UHH in NoIdle/NoStandby mode */
454 writel(OMAP_UHH_SYSCONFIG_ENAWAKEUP
455 | OMAP_UHH_SYSCONFIG_SIDLEMODE
456 | OMAP_UHH_SYSCONFIG_CACTIVITY
457 | OMAP_UHH_SYSCONFIG_MIDLEMODE,
458 OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
459
460 /* setup burst configurations */
461 writel(OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
462 | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
463 | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN,
464 OMAP3_UHH_BASE + OMAP_UHH_HOSTCONFIG);
465
466 /*
467 * Refer ISSUE1:
468 * Hold the PHY in RESET for enough time till
469 * PHY is settled and ready
470 */
471 udelay(10);
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400472 gpio_set_value(GPIO_PHY_RESET, 1);
Alexander Holler8f6f15c2011-04-19 09:30:35 -0400473
474 hccr = (struct ehci_hccr *)(OMAP3_EHCI_BASE);
475 hcor = (struct ehci_hcor *)(OMAP3_EHCI_BASE + 0x10);
476
477 pr_debug("OMAP3 EHCI init done\n");
478 return 0;
479}
480
481#endif /* CONFIG_USB_EHCI */
Jason Kridner85a08fb2010-07-21 07:41:25 -0500482
483/*
484 * This command returns the status of the user button on beagle xM
485 * Input - none
486 * Returns - 1 if button is held down
487 * 0 if button is not held down
488 */
489int do_userbutton (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
490{
491 int button = 0;
492 int gpio;
493
494 /*
495 * pass address parameter as argv[0] (aka command name),
496 * and all remaining args
497 */
498 switch (get_board_revision()) {
499 case REVISION_AXBX:
500 case REVISION_CX:
501 case REVISION_C4:
502 gpio = 7;
503 break;
504 case REVISION_XM_A:
505 case REVISION_XM_B:
506 case REVISION_XM_C:
507 default:
508 gpio = 4;
509 break;
510 }
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400511 gpio_request(gpio, "");
512 gpio_direction_input(gpio);
Jason Kridner85a08fb2010-07-21 07:41:25 -0500513 printf("The user button is currently ");
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400514 if (gpio_get_value(gpio))
Jason Kridner85a08fb2010-07-21 07:41:25 -0500515 {
516 button = 1;
517 printf("PRESSED.\n");
518 }
519 else
520 {
521 button = 0;
522 printf("NOT pressed.\n");
523 }
524
Sanjeev Premi7b3dc822011-09-08 10:51:01 -0400525 gpio_free(gpio);
Jason Kridner85a08fb2010-07-21 07:41:25 -0500526
527 return !button;
528}
529
530/* -------------------------------------------------------------------- */
531
532U_BOOT_CMD(
533 userbutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
534 "Return the status of the BeagleBoard USER button",
535 ""
536);