blob: 5c04b34e1ab0140aca93e7752c8672ce7aebc0b9 [file] [log] [blame]
Dirk Behmef904cdb2009-01-27 18:19:12 +01001/*
Tom Rini75c57a32011-11-18 12:48:08 +00002 * (C) Copyright 2004-2011
Dirk Behmef904cdb2009-01-27 18:19:12 +01003 * 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 Kridner70d8c942011-04-18 17:23:35 -040033#ifdef CONFIG_STATUS_LED
34#include <status_led.h>
35#endif
Tom Rix2c155132009-06-28 12:52:30 -050036#include <twl4030.h>
Tom Rini75c57a32011-11-18 12:48:08 +000037#include <linux/mtd/nand.h>
Dirk Behmef904cdb2009-01-27 18:19:12 +010038#include <asm/io.h>
Steve Sakoman0cd31142010-09-19 21:19:48 -070039#include <asm/arch/mmc_host_def.h>
Dirk Behmef904cdb2009-01-27 18:19:12 +010040#include <asm/arch/mux.h>
Tom Rini75c57a32011-11-18 12:48:08 +000041#include <asm/arch/mem.h>
Dirk Behmef904cdb2009-01-27 18:19:12 +010042#include <asm/arch/sys_proto.h>
Sanjeev Premi84c3b632011-09-08 10:51:01 -040043#include <asm/gpio.h>
Dirk Behmef904cdb2009-01-27 18:19:12 +010044#include <asm/mach-types.h>
Alexander Hollerd90859a2011-04-19 09:30:35 -040045#ifdef CONFIG_USB_EHCI
46#include <usb.h>
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 */
51extern struct ehci_hccr *hccr;
52extern volatile struct ehci_hcor *hcor;
53#endif
Dirk Behmef904cdb2009-01-27 18:19:12 +010054#include "beagle.h"
Jason Kridnerf835ea72010-07-21 07:41:25 -050055#include <command.h>
Dirk Behmef904cdb2009-01-27 18:19:12 +010056
Alexander Hollerd90859a2011-04-19 09:30:35 -040057#define pr_debug(fmt, args...) debug(fmt, ##args)
58
Koen Kooica5f80a2010-09-20 10:21:33 -070059#define TWL4030_I2C_BUS 0
60#define EXPANSION_EEPROM_I2C_BUS 1
61#define EXPANSION_EEPROM_I2C_ADDRESS 0x50
62
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
Koen Kooiee8485f2011-04-18 17:29:35 -040068#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
Peter Meerwald6cce5502012-01-03 04:14:35 +000074#define BCT_BRETTL3 0x01000F00
Koen Kooica5f80a2010-09-20 10:21:33 -070075#define BEAGLE_NO_EEPROM 0xffffffff
76
John Rigby29565322010-12-20 18:27:51 -070077DECLARE_GLOBAL_DATA_PTR;
78
Koen Kooica5f80a2010-09-20 10:21:33 -070079static struct {
80 unsigned int device_vendor;
81 unsigned char revision;
82 unsigned char content;
83 char fab_revision[8];
84 char env_var[16];
85 char env_setting[64];
86} expansion_config;
87
Tom Rix58911512009-04-01 22:02:20 -050088/*
Dirk Behmef904cdb2009-01-27 18:19:12 +010089 * Routine: board_init
90 * Description: Early hardware init.
Tom Rix58911512009-04-01 22:02:20 -050091 */
Dirk Behmef904cdb2009-01-27 18:19:12 +010092int board_init(void)
93{
Dirk Behmef904cdb2009-01-27 18:19:12 +010094 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
95 /* board id for Linux */
96 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
97 /* boot param addr */
98 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
99
Jason Kridner70d8c942011-04-18 17:23:35 -0400100#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
101 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
102#endif
103
Dirk Behmef904cdb2009-01-27 18:19:12 +0100104 return 0;
105}
106
Tom Rix58911512009-04-01 22:02:20 -0500107/*
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700108 * Routine: get_board_revision
109 * Description: Detect if we are running on a Beagle revision Ax/Bx,
Steve Sakoman08cbba2ab2010-08-19 20:56:11 -0700110 * C1/2/3, C4 or xM. This can be done by reading
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700111 * the level of GPIO173, GPIO172 and GPIO171. This should
112 * result in
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
Steve Sakoman08cbba2ab2010-08-19 20:56:11 -0700116 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM
Tom Rix58911512009-04-01 22:02:20 -0500117 */
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700118int get_board_revision(void)
Dirk Behmef956fd02009-02-12 18:55:41 +0100119{
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700120 int revision;
Dirk Behmef956fd02009-02-12 18:55:41 +0100121
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400122 if (!gpio_request(171, "") &&
123 !gpio_request(172, "") &&
124 !gpio_request(173, "")) {
Dirk Behmef956fd02009-02-12 18:55:41 +0100125
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400126 gpio_direction_input(171);
127 gpio_direction_input(172);
128 gpio_direction_input(173);
Dirk Behmef956fd02009-02-12 18:55:41 +0100129
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400130 revision = gpio_get_value(173) << 2 |
131 gpio_get_value(172) << 1 |
132 gpio_get_value(171);
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700133 } else {
134 printf("Error: unable to acquire board revision GPIOs\n");
135 revision = -1;
Tom Rix718763c2009-06-03 01:53:57 -0500136 }
Dirk Behmef956fd02009-02-12 18:55:41 +0100137
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700138 return revision;
Dirk Behmef956fd02009-02-12 18:55:41 +0100139}
140
Tom Rini75c57a32011-11-18 12:48:08 +0000141#ifdef CONFIG_SPL_BUILD
142/*
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.
146 */
147void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
148 u32 *mr)
149{
150 int pop_mfr, pop_id;
151
152 /*
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
156 */
157 identify_nand_chip(&pop_mfr, &pop_id);
158
159 *mr = MICRON_V_MR_165;
160 switch (get_board_revision()) {
161 case REVISION_C4:
162 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
163 /* 512MB DDR */
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;
168 break;
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;
175 break;
176 }
177 case REVISION_XM_A:
178 case REVISION_XM_B:
179 case REVISION_XM_C:
180 if (pop_mfr == 0) {
181 /* 256MB DDR */
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;
186 } else {
187 /* 512MB DDR */
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;
192 }
193 break;
194 default:
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;
200 }
201}
202#endif
203
Tom Rix58911512009-04-01 22:02:20 -0500204/*
Koen Kooica5f80a2010-09-20 10:21:33 -0700205 * 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
209 */
210unsigned int get_expansion_id(void)
211{
212 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
213
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;
218 }
219
220 /* read configuration data */
221 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
222 sizeof(expansion_config));
223
224 i2c_set_bus_num(TWL4030_I2C_BUS);
225
226 return expansion_config.device_vendor;
227}
228
229/*
Jason Kridner3f16ab92011-04-19 14:01:13 -0500230 * Configure DSS to display background color on DVID
231 * Configure VENC to display color bar on S-Video
232 */
233void beagle_display_init(void)
234{
235 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
236 switch (get_board_revision()) {
237 case REVISION_AXBX:
238 case REVISION_CX:
239 case REVISION_C4:
240 omap3_dss_panel_config(&dvid_cfg);
241 break;
242 case REVISION_XM_A:
243 case REVISION_XM_B:
244 case REVISION_XM_C:
245 default:
246 omap3_dss_panel_config(&dvid_cfg_xm);
247 break;
248 }
249}
250
251/*
Dirk Behmef904cdb2009-01-27 18:19:12 +0100252 * Routine: misc_init_r
253 * Description: Configure board specific parts
Tom Rix58911512009-04-01 22:02:20 -0500254 */
Dirk Behmef904cdb2009-01-27 18:19:12 +0100255int misc_init_r(void)
256{
Dirk Behme97a099e2009-08-08 09:30:21 +0200257 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
258 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
Jason Kridnerf14a5222011-04-20 13:52:26 +0000259 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
Steve Kipiszd4e53f02011-04-18 17:27:00 -0400260
261 /* Enable i2c2 pullup resisters */
262 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
Dirk Behmef904cdb2009-01-27 18:19:12 +0100263
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700264 switch (get_board_revision()) {
265 case REVISION_AXBX:
266 printf("Beagle Rev Ax/Bx\n");
267 setenv("beaglerev", "AxBx");
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700268 break;
269 case REVISION_CX:
270 printf("Beagle Rev C1/C2/C3\n");
271 setenv("beaglerev", "Cx");
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700272 MUX_BEAGLE_C();
273 break;
274 case REVISION_C4:
275 printf("Beagle Rev C4\n");
Steve Sakoman08cbba2ab2010-08-19 20:56:11 -0700276 setenv("beaglerev", "C4");
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700277 MUX_BEAGLE_C();
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);
283 break;
Koen Kooif6e593b2011-04-18 17:28:32 -0400284 case REVISION_XM_A:
Steve Sakoman08cbba2ab2010-08-19 20:56:11 -0700285 printf("Beagle xM Rev A\n");
286 setenv("beaglerev", "xMA");
Koen Kooif6e593b2011-04-18 17:28:32 -0400287 MUX_BEAGLE_XM();
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);
293 break;
294 case REVISION_XM_B:
295 printf("Beagle xM Rev B\n");
296 setenv("beaglerev", "xMB");
Steve Sakoman08cbba2ab2010-08-19 20:56:11 -0700297 MUX_BEAGLE_XM();
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);
303 break;
Koen Kooi1ffcb342011-06-17 09:37:37 +0200304 case REVISION_XM_C:
305 printf("Beagle xM Rev C\n");
306 setenv("beaglerev", "xMC");
307 MUX_BEAGLE_XM();
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);
313 break;
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700314 default:
315 printf("Beagle unknown 0x%02x\n", get_board_revision());
Koen Kooif6e593b2011-04-18 17:28:32 -0400316 MUX_BEAGLE_XM();
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);
Steve Sakoman06b95bd2010-08-12 15:17:37 -0700322 }
323
Koen Kooica5f80a2010-09-20 10:21:33 -0700324 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");
331 break;
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");
338 break;
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");
346 break;
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");
354 break;
355 case KBADC_BEAGLEFPGA:
356 printf("Recognized KBADC Beagle FPGA board\n");
357 MUX_KBADC_BEAGLEFPGA();
358 setenv("buddy", "beaglefpga");
359 break;
Koen Kooiee8485f2011-04-18 17:29:35 -0400360 case LW_BEAGLETOUCH:
361 printf("Recognized Liquidware BeagleTouch board\n");
362 setenv("buddy", "beagletouch");
363 break;
364 case BRAINMUX_LCDOG:
365 printf("Recognized Brainmux LCDog board\n");
366 setenv("buddy", "lcdog");
367 break;
368 case BRAINMUX_LCDOGTOUCH:
369 printf("Recognized Brainmux LCDog Touch board\n");
370 setenv("buddy", "lcdogtouch");
371 break;
372 case BBTOYS_WIFI:
373 printf("Recognized BeagleBoardToys WiFi board\n");
374 MUX_BBTOYS_WIFI()
375 setenv("buddy", "bbtoys-wifi");
376 break;;
377 case BBTOYS_VGA:
378 printf("Recognized BeagleBoardToys VGA board\n");
379 break;;
380 case BBTOYS_LCD:
381 printf("Recognized BeagleBoardToys LCD board\n");
382 break;;
Peter Meerwald6cce5502012-01-03 04:14:35 +0000383 case BCT_BRETTL3:
384 printf("Recognized bct electronic GmbH brettl3 board\n");
385 break;
Koen Kooica5f80a2010-09-20 10:21:33 -0700386 case BEAGLE_NO_EEPROM:
387 printf("No EEPROM on expansion board\n");
388 setenv("buddy", "none");
389 break;
390 default:
391 printf("Unrecognized expansion board: %x\n",
392 expansion_config.device_vendor);
393 setenv("buddy", "unknown");
394 }
395
396 if (expansion_config.content == 1)
397 setenv(expansion_config.env_var, expansion_config.env_setting);
398
Tom Rix2c155132009-06-28 12:52:30 -0500399 twl4030_power_init();
Christian Spielberger38a77c32011-08-24 17:17:31 -0500400 switch (get_board_revision()) {
401 case REVISION_XM_A:
402 case REVISION_XM_B:
403 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
404 break;
405 default:
406 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
407 break;
408 }
Dirk Behmef904cdb2009-01-27 18:19:12 +0100409
Bob Feretich52d82e42011-02-24 13:16:44 +0000410 /* Set GPIO states before they are made outputs */
Dirk Behmef904cdb2009-01-27 18:19:12 +0100411 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);
415
Bob Feretich52d82e42011-02-24 13:16:44 +0000416 /* 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);
420
Dirk Behmee6a6a702009-03-12 19:30:50 +0100421 dieid_num_r();
Jason Kridner3f16ab92011-04-19 14:01:13 -0500422 beagle_display_init();
423 omap3_dss_enable();
Dirk Behmee6a6a702009-03-12 19:30:50 +0100424
Dirk Behmef904cdb2009-01-27 18:19:12 +0100425 return 0;
426}
427
Tom Rix58911512009-04-01 22:02:20 -0500428/*
Dirk Behmef904cdb2009-01-27 18:19:12 +0100429 * 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
432 * mode.
Tom Rix58911512009-04-01 22:02:20 -0500433 */
Dirk Behmef904cdb2009-01-27 18:19:12 +0100434void set_muxconf_regs(void)
435{
436 MUX_BEAGLE();
Dirk Behmef904cdb2009-01-27 18:19:12 +0100437}
Steve Sakoman0cd31142010-09-19 21:19:48 -0700438
Tom Rini75c57a32011-11-18 12:48:08 +0000439#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
Steve Sakoman0cd31142010-09-19 21:19:48 -0700440int board_mmc_init(bd_t *bis)
441{
442 omap_mmc_init(0);
443 return 0;
444}
445#endif
Alexander Hollerd90859a2011-04-19 09:30:35 -0400446
447#ifdef CONFIG_USB_EHCI
448
449#define GPIO_PHY_RESET 147
450
451/* Reset is needed otherwise the kernel-driver will throw an error. */
452int ehci_hcd_stop(void)
453{
454 pr_debug("Resetting OMAP3 EHCI\n");
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400455 gpio_set_value(GPIO_PHY_RESET, 0);
Alexander Hollerd90859a2011-04-19 09:30:35 -0400456 writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
Koen Kooif44047d2011-06-17 09:26:17 +0200457 /* 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);
Alexander Hollerd90859a2011-04-19 09:30:35 -0400463 return 0;
464}
465
466/* Call usb_stop() before starting the kernel */
467void show_boot_progress(int val)
468{
469 if(val == 15)
470 usb_stop();
471}
472
473/*
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.
477 */
478int ehci_hcd_init(void)
479{
480 pr_debug("Initializing OMAP3 ECHI\n");
481
482 /* Put the PHY in RESET */
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400483 gpio_request(GPIO_PHY_RESET, "");
484 gpio_direction_output(GPIO_PHY_RESET, 0);
485 gpio_set_value(GPIO_PHY_RESET, 0);
Alexander Hollerd90859a2011-04-19 09:30:35 -0400486
487 /* Hold the PHY in RESET for enough time till DIR is high */
488 /* Refer: ISSUE1 */
489 udelay(10);
490
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);
494 /*
495 * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
496 * and USBHOST_120M_FCLK (USBHOST_FCLK2)
497 */
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");
504
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");
512
513 writel(OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
514 OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
515 OMAP_USBTLL_SYSCONFIG_CACTIVITY,
516 OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
517
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);
524
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);
530
531 /*
532 * Refer ISSUE1:
533 * Hold the PHY in RESET for enough time till
534 * PHY is settled and ready
535 */
536 udelay(10);
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400537 gpio_set_value(GPIO_PHY_RESET, 1);
Alexander Hollerd90859a2011-04-19 09:30:35 -0400538
539 hccr = (struct ehci_hccr *)(OMAP3_EHCI_BASE);
540 hcor = (struct ehci_hcor *)(OMAP3_EHCI_BASE + 0x10);
541
542 pr_debug("OMAP3 EHCI init done\n");
543 return 0;
544}
545
546#endif /* CONFIG_USB_EHCI */
Jason Kridnerf835ea72010-07-21 07:41:25 -0500547
Tom Rini75c57a32011-11-18 12:48:08 +0000548#ifndef CONFIG_SPL_BUILD
Jason Kridnerf835ea72010-07-21 07:41:25 -0500549/*
550 * This command returns the status of the user button on beagle xM
551 * Input - none
552 * Returns - 1 if button is held down
553 * 0 if button is not held down
554 */
Dirk Behme513e6fd2011-09-22 01:53:22 +0000555int do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Jason Kridnerf835ea72010-07-21 07:41:25 -0500556{
557 int button = 0;
558 int gpio;
559
560 /*
561 * pass address parameter as argv[0] (aka command name),
562 * and all remaining args
563 */
564 switch (get_board_revision()) {
565 case REVISION_AXBX:
566 case REVISION_CX:
567 case REVISION_C4:
568 gpio = 7;
569 break;
570 case REVISION_XM_A:
571 case REVISION_XM_B:
572 case REVISION_XM_C:
573 default:
574 gpio = 4;
575 break;
576 }
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400577 gpio_request(gpio, "");
578 gpio_direction_input(gpio);
Jason Kridnerf835ea72010-07-21 07:41:25 -0500579 printf("The user button is currently ");
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400580 if (gpio_get_value(gpio))
Jason Kridnerf835ea72010-07-21 07:41:25 -0500581 {
582 button = 1;
583 printf("PRESSED.\n");
584 }
585 else
586 {
587 button = 0;
588 printf("NOT pressed.\n");
589 }
590
Jason Kridnerf835ea72010-07-21 07:41:25 -0500591 return !button;
592}
593
594/* -------------------------------------------------------------------- */
595
596U_BOOT_CMD(
597 userbutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
598 "Return the status of the BeagleBoard USER button",
599 ""
600);
Tom Rini75c57a32011-11-18 12:48:08 +0000601#endif