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>
48 #ifdef CONFIG_USB_EHCI
50 #include <asm/ehci-omap.h>
53 #define pr_debug(fmt, args...) debug(fmt, ##args)
55 #define TWL4030_I2C_BUS 0
56 #define EXPANSION_EEPROM_I2C_BUS 1
57 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50
59 #define TINCANTOOLS_ZIPPY 0x01000100
60 #define TINCANTOOLS_ZIPPY2 0x02000100
61 #define TINCANTOOLS_TRAINER 0x04000100
62 #define TINCANTOOLS_SHOWDOG 0x03000100
63 #define KBADC_BEAGLEFPGA 0x01000600
64 #define LW_BEAGLETOUCH 0x01000700
65 #define BRAINMUX_LCDOG 0x01000800
66 #define BRAINMUX_LCDOGTOUCH 0x02000800
67 #define BBTOYS_WIFI 0x01000B00
68 #define BBTOYS_VGA 0x02000B00
69 #define BBTOYS_LCD 0x03000B00
70 #define BCT_BRETTL3 0x01000F00
71 #define BCT_BRETTL4 0x02000F00
72 #define BEAGLE_NO_EEPROM 0xffffffff
74 DECLARE_GLOBAL_DATA_PTR;
77 unsigned int device_vendor;
78 unsigned char revision;
79 unsigned char content;
87 * Description: Early hardware init.
91 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
92 /* board id for Linux */
93 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
95 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
97 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
98 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
105 * Routine: get_board_revision
106 * Description: Detect if we are running on a Beagle revision Ax/Bx,
107 * C1/2/3, C4 or xM. This can be done by reading
108 * the level of GPIO173, GPIO172 and GPIO171. This should
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
113 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM
115 static int get_board_revision(void)
119 if (!gpio_request(171, "") &&
120 !gpio_request(172, "") &&
121 !gpio_request(173, "")) {
123 gpio_direction_input(171);
124 gpio_direction_input(172);
125 gpio_direction_input(173);
127 revision = gpio_get_value(173) << 2 |
128 gpio_get_value(172) << 1 |
131 printf("Error: unable to acquire board revision GPIOs\n");
138 #ifdef CONFIG_SPL_BUILD
140 * Routine: get_board_mem_timings
141 * Description: If we use SPL then there is no x-loader nor config header
142 * so we have to setup the DDR timings ourself on both banks.
144 void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
150 * We need to identify what PoP memory is on the board so that
151 * we know what timings to use. If we can't identify it then
152 * we know it's an xM. To map the ID values please see nand_ids.c
154 identify_nand_chip(&pop_mfr, &pop_id);
156 *mr = MICRON_V_MR_165;
157 switch (get_board_revision()) {
159 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
161 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
162 *ctrla = NUMONYX_V_ACTIMA_165;
163 *ctrlb = NUMONYX_V_ACTIMB_165;
164 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
166 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) {
167 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/
168 *mcfg = MICRON_V_MCFG_165(128 << 20);
169 *ctrla = MICRON_V_ACTIMA_165;
170 *ctrlb = MICRON_V_ACTIMB_165;
171 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
173 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
174 /* Beagleboard Rev C5, 256MB DDR */
175 *mcfg = MICRON_V_MCFG_200(256 << 20);
176 *ctrla = MICRON_V_ACTIMA_200;
177 *ctrlb = MICRON_V_ACTIMB_200;
178 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
186 *mcfg = MICRON_V_MCFG_200(256 << 20);
187 *ctrla = MICRON_V_ACTIMA_200;
188 *ctrlb = MICRON_V_ACTIMB_200;
189 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
192 *mcfg = NUMONYX_V_MCFG_165(512 << 20);
193 *ctrla = NUMONYX_V_ACTIMA_165;
194 *ctrlb = NUMONYX_V_ACTIMB_165;
195 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
199 /* Assume 128MB and Micron/165MHz timings to be safe */
200 *mcfg = MICRON_V_MCFG_165(128 << 20);
201 *ctrla = MICRON_V_ACTIMA_165;
202 *ctrlb = MICRON_V_ACTIMB_165;
203 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
209 * Routine: get_expansion_id
210 * Description: This function checks for expansion board by checking I2C
211 * bus 1 for the availability of an AT24C01B serial EEPROM.
212 * returns the device_vendor field from the EEPROM
214 static unsigned int get_expansion_id(void)
216 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
218 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
219 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
220 i2c_set_bus_num(TWL4030_I2C_BUS);
221 return BEAGLE_NO_EEPROM;
224 /* read configuration data */
225 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
226 sizeof(expansion_config));
228 i2c_set_bus_num(TWL4030_I2C_BUS);
230 return expansion_config.device_vendor;
234 * Configure DSS to display background color on DVID
235 * Configure VENC to display color bar on S-Video
237 static void beagle_display_init(void)
239 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
240 switch (get_board_revision()) {
244 omap3_dss_panel_config(&dvid_cfg);
250 omap3_dss_panel_config(&dvid_cfg_xm);
258 static void beagle_dvi_pup(void)
262 switch (get_board_revision()) {
267 gpio_request(170, "");
268 gpio_direction_output(170, 0);
269 gpio_set_value(170, 1);
274 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3)
275 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6)
277 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
279 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
281 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
283 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
289 * Routine: misc_init_r
290 * Description: Configure board specific parts
292 int misc_init_r(void)
294 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
295 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
296 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
298 /* Enable i2c2 pullup resisters */
299 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
301 switch (get_board_revision()) {
303 printf("Beagle Rev Ax/Bx\n");
304 setenv("beaglerev", "AxBx");
307 printf("Beagle Rev C1/C2/C3\n");
308 setenv("beaglerev", "Cx");
312 printf("Beagle Rev C4\n");
313 setenv("beaglerev", "C4");
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 xM Rev A\n");
323 setenv("beaglerev", "xMA");
325 /* Set VAUX2 to 1.8V for EHCI PHY */
326 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
327 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
328 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
329 TWL4030_PM_RECEIVER_DEV_GRP_P1);
332 printf("Beagle xM Rev B\n");
333 setenv("beaglerev", "xMB");
335 /* Set VAUX2 to 1.8V for EHCI PHY */
336 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
337 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
338 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
339 TWL4030_PM_RECEIVER_DEV_GRP_P1);
342 printf("Beagle xM Rev C\n");
343 setenv("beaglerev", "xMC");
345 /* Set VAUX2 to 1.8V for EHCI PHY */
346 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
347 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
348 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
349 TWL4030_PM_RECEIVER_DEV_GRP_P1);
352 printf("Beagle unknown 0x%02x\n", get_board_revision());
354 /* Set VAUX2 to 1.8V for EHCI PHY */
355 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
356 TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
357 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
358 TWL4030_PM_RECEIVER_DEV_GRP_P1);
361 switch (get_expansion_id()) {
362 case TINCANTOOLS_ZIPPY:
363 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
364 expansion_config.revision,
365 expansion_config.fab_revision);
366 MUX_TINCANTOOLS_ZIPPY();
367 setenv("buddy", "zippy");
369 case TINCANTOOLS_ZIPPY2:
370 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
371 expansion_config.revision,
372 expansion_config.fab_revision);
373 MUX_TINCANTOOLS_ZIPPY();
374 setenv("buddy", "zippy2");
376 case TINCANTOOLS_TRAINER:
377 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
378 expansion_config.revision,
379 expansion_config.fab_revision);
380 MUX_TINCANTOOLS_ZIPPY();
381 MUX_TINCANTOOLS_TRAINER();
382 setenv("buddy", "trainer");
384 case TINCANTOOLS_SHOWDOG:
385 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
386 expansion_config.revision,
387 expansion_config.fab_revision);
388 /* Place holder for DSS2 definition for showdog lcd */
389 setenv("defaultdisplay", "showdoglcd");
390 setenv("buddy", "showdog");
392 case KBADC_BEAGLEFPGA:
393 printf("Recognized KBADC Beagle FPGA board\n");
394 MUX_KBADC_BEAGLEFPGA();
395 setenv("buddy", "beaglefpga");
398 printf("Recognized Liquidware BeagleTouch board\n");
399 setenv("buddy", "beagletouch");
402 printf("Recognized Brainmux LCDog board\n");
403 setenv("buddy", "lcdog");
405 case BRAINMUX_LCDOGTOUCH:
406 printf("Recognized Brainmux LCDog Touch board\n");
407 setenv("buddy", "lcdogtouch");
410 printf("Recognized BeagleBoardToys WiFi board\n");
412 setenv("buddy", "bbtoys-wifi");
415 printf("Recognized BeagleBoardToys VGA board\n");
418 printf("Recognized BeagleBoardToys LCD board\n");
421 printf("Recognized bct electronic GmbH brettl3 board\n");
424 printf("Recognized bct electronic GmbH brettl4 board\n");
426 case BEAGLE_NO_EEPROM:
427 printf("No EEPROM on expansion board\n");
428 setenv("buddy", "none");
431 printf("Unrecognized expansion board: %x\n",
432 expansion_config.device_vendor);
433 setenv("buddy", "unknown");
436 if (expansion_config.content == 1)
437 setenv(expansion_config.env_var, expansion_config.env_setting);
439 twl4030_power_init();
440 switch (get_board_revision()) {
443 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
446 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
450 /* Set GPIO states before they are made outputs */
451 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
452 &gpio6_base->setdataout);
453 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
454 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
456 /* Configure GPIOs to output */
457 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
458 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
459 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
464 beagle_display_init();
471 * Routine: set_muxconf_regs
472 * Description: Setting up the configuration Mux registers specific to the
473 * hardware. Many pins need to be moved from protect to primary
476 void set_muxconf_regs(void)
481 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
482 int board_mmc_init(bd_t *bis)
484 omap_mmc_init(0, 0, 0);
489 #ifdef CONFIG_USB_EHCI
490 /* Call usb_stop() before starting the kernel */
491 void show_boot_progress(int val)
493 if (val == BOOTSTAGE_ID_RUN_OS)
497 static struct omap_usbhs_board_data usbhs_bdata = {
498 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
499 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
500 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
503 int ehci_hcd_init(void)
505 return omap_ehci_hcd_init(&usbhs_bdata);
508 int ehci_hcd_stop(void)
510 return omap_ehci_hcd_stop();
513 #endif /* CONFIG_USB_EHCI */