2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License as
4 * published by the Free Software Foundation; either version 2 of
5 * the License, or (at your option) any later version.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 #include <asm/arch/cpu.h>
23 #include <asm/arch/bits.h>
24 #include <asm/arch/mux.h>
25 #include <asm/arch/gpio.h>
26 #include <asm/arch/sys_proto.h>
27 #include <asm/arch/sys_info.h>
28 #include <asm/arch/clocks.h>
29 #include <asm/arch/mem.h>
31 /* params for DM3730 */
32 #define CORE_DPLL_PARAM_M2 0x09
33 #define CORE_DPLL_PARAM_M 0x360
34 #define CORE_DPLL_PARAM_N 0xC
36 /* Used to index into DPLL parameter tables */
44 typedef struct dpll_param dpll_param;
46 /* Following functions are exported from lowlevel_init.S */
47 extern dpll_param *get_mpu_dpll_param(void);
48 extern dpll_param *get_iva_dpll_param(void);
49 extern dpll_param *get_core_dpll_param(void);
50 extern dpll_param *get_per_dpll_param(void);
52 #define __raw_readl(a) (*(volatile unsigned int *)(a))
53 #define __raw_writel(v, a) (*(volatile unsigned int *)(a) = (v))
54 #define __raw_readw(a) (*(volatile unsigned short *)(a))
55 #define __raw_writew(v, a) (*(volatile unsigned short *)(a) = (v))
57 int tao3530_revision(void);
59 /*******************************************************
61 * Description: spinning delay to use before udelay works
62 ******************************************************/
63 static inline void delay(unsigned long loops)
65 __asm__ volatile ("1:\n" "subs %0, %1, #1\n"
66 "bne 1b":"=r" (loops):"0"(loops));
69 void udelay (unsigned long usecs) {
73 /*****************************************
75 * Description: Early hardware init.
76 *****************************************/
82 /*************************************************************
83 * get_device_type(): tell if GP/HS/EMU/TST
84 *************************************************************/
85 u32 get_device_type(void)
88 mode = __raw_readl(CONTROL_STATUS) & (DEVICE_MASK);
92 /************************************************
93 * get_sysboot_value(void) - return SYS_BOOT[4:0]
94 ************************************************/
95 u32 get_sysboot_value(void)
98 mode = __raw_readl(CONTROL_STATUS) & (SYSBOOT_MASK);
102 /*************************************************************
103 * Routine: get_mem_type(void) - returns the kind of memory connected
104 * to GPMC that we are trying to boot form. Uses SYS BOOT settings.
105 *************************************************************/
106 u32 get_mem_type(void)
108 u32 mem_type = get_sysboot_value();
150 /******************************************
151 * get_cpu_rev(void) - extract version info
152 ******************************************/
153 u32 get_cpu_rev(void)
156 /* On ES1.0 the IDCODE register is not exposed on L4
157 * so using CPU ID to differentiate
158 * between ES2.0 and ES1.0.
160 __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r" (cpuid));
161 if ((cpuid & 0xf) == 0x0)
168 /******************************************
169 * cpu_is_3410(void) - returns true for 3410
170 ******************************************/
171 u32 cpu_is_3410(void)
174 if (get_cpu_rev() < CPU_3430_ES2) {
177 /* read scalability status and return 1 for 3410*/
178 status = __raw_readl(CONTROL_SCALABLE_OMAP_STATUS);
179 /* Check whether MPU frequency is set to 266 MHz which
180 * is nominal for 3410. If yes return true else false
182 if (((status >> 8) & 0x3) == 0x2)
189 /*****************************************************************
190 * sr32 - clear & set a value in a bit range for a 32 bit address
191 *****************************************************************/
192 void sr32(u32 addr, u32 start_bit, u32 num_bits, u32 value)
197 tmp = __raw_readl(addr) & ~(msk << start_bit);
198 tmp |= value << start_bit;
199 __raw_writel(tmp, addr);
202 /*********************************************************************
203 * wait_on_value() - common routine to allow waiting for changes in
205 *********************************************************************/
206 u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound)
211 val = __raw_readl(read_addr) & read_bit_mask;
212 if (val == match_value)
219 #ifdef CFG_3430SDRAM_DDR
220 /*********************************************************************
221 * config_3430sdram_ddr() - Init DDR on 3430SDP dev board.
222 *********************************************************************/
223 void config_3430sdram_ddr(void)
225 /* reset sdrc controller */
226 __raw_writel(SOFTRESET, SDRC_SYSCONFIG);
227 wait_on_value(BIT0, BIT0, SDRC_STATUS, 12000000);
228 __raw_writel(0, SDRC_SYSCONFIG);
230 /* setup sdrc to ball mux */
231 __raw_writel(SDP_SDRC_SHARING, SDRC_SHARING);
233 if(tao3530_revision() < 3) /* 256MB / Bank */
235 __raw_writel(0x2, SDRC_CS_CFG); /* 256MB/bank */
236 __raw_writel(SDP_SDRC_MDCFG_0_DDR_HYNIX, SDRC_MCFG_0);
237 __raw_writel(SDP_SDRC_MDCFG_0_DDR_HYNIX, SDRC_MCFG_1);
239 else /* 128MB / Bank */
241 __raw_writel(0x1, SDRC_CS_CFG); /* 128MB/bank */
242 __raw_writel(SDP_SDRC_MDCFG_0_DDR, SDRC_MCFG_0);
243 __raw_writel(SDP_SDRC_MDCFG_0_DDR, SDRC_MCFG_1);
247 __raw_writel(MICRON_V_ACTIMA_200, SDRC_ACTIM_CTRLA_0);
248 __raw_writel(MICRON_V_ACTIMB_200, SDRC_ACTIM_CTRLB_0);
249 __raw_writel(MICRON_V_ACTIMA_200, SDRC_ACTIM_CTRLA_1);
250 __raw_writel(MICRON_V_ACTIMB_200, SDRC_ACTIM_CTRLB_1);
251 __raw_writel(SDP_3430_SDRC_RFR_CTRL_200MHz, SDRC_RFR_CTRL_0);
252 __raw_writel(SDP_3430_SDRC_RFR_CTRL_200MHz, SDRC_RFR_CTRL_1);
256 __raw_writel(MICRON_V_ACTIMA_165, SDRC_ACTIM_CTRLA_0);
257 __raw_writel(MICRON_V_ACTIMB_165, SDRC_ACTIM_CTRLB_0);
258 __raw_writel(MICRON_V_ACTIMA_165, SDRC_ACTIM_CTRLA_1);
259 __raw_writel(MICRON_V_ACTIMB_165, SDRC_ACTIM_CTRLB_1);
260 __raw_writel(SDP_3430_SDRC_RFR_CTRL_165MHz, SDRC_RFR_CTRL_0);
261 __raw_writel(SDP_3430_SDRC_RFR_CTRL_165MHz, SDRC_RFR_CTRL_1);
264 __raw_writel(SDP_SDRC_POWER_POP, SDRC_POWER);
266 /* init sequence for mDDR/mSDR using manual commands (DDR is different) */
267 __raw_writel(CMD_NOP, SDRC_MANUAL_0);
268 __raw_writel(CMD_NOP, SDRC_MANUAL_1);
272 __raw_writel(CMD_PRECHARGE, SDRC_MANUAL_0);
273 __raw_writel(CMD_PRECHARGE, SDRC_MANUAL_1);
275 __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_0);
276 __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_1);
278 __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_0);
279 __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_1);
282 __raw_writel(SDP_SDRC_MR_0_DDR, SDRC_MR_0);
283 __raw_writel(SDP_SDRC_MR_0_DDR, SDRC_MR_1);
286 __raw_writel(SDP_SDRC_DLLAB_CTRL, SDRC_DLLA_CTRL);
287 delay(0x2000); /* give time to lock */
290 #endif /* CFG_3430SDRAM_DDR */
292 /*************************************************************
293 * get_sys_clk_speed - determine reference oscillator speed
294 * based on known 32kHz clock and gptimer.
295 *************************************************************/
296 u32 get_osc_clk_speed(void)
298 u32 start, cstart, cend, cdiff, cdiv, val;
300 val = __raw_readl(PRM_CLKSRC_CTRL);
302 if (val & SYSCLKDIV_2)
308 val = __raw_readl(CM_CLKSEL_WKUP) | BIT0;
309 __raw_writel(val, CM_CLKSEL_WKUP); /* select sys_clk for GPT1 */
311 /* Enable I and F Clocks for GPT1 */
312 val = __raw_readl(CM_ICLKEN_WKUP) | BIT0 | BIT2;
313 __raw_writel(val, CM_ICLKEN_WKUP);
314 val = __raw_readl(CM_FCLKEN_WKUP) | BIT0;
315 __raw_writel(val, CM_FCLKEN_WKUP);
317 __raw_writel(0, OMAP34XX_GPT1 + TLDR); /* start counting at 0 */
318 __raw_writel(GPT_EN, OMAP34XX_GPT1 + TCLR); /* enable clock */
319 /* enable 32kHz source */
320 /* enabled out of reset */
321 /* determine sys_clk via gauging */
323 start = 20 + __raw_readl(S32K_CR); /* start time in 20 cycles */
324 while (__raw_readl(S32K_CR) < start) ; /* dead loop till start time */
325 cstart = __raw_readl(OMAP34XX_GPT1 + TCRR); /* get start sys_clk count */
326 while (__raw_readl(S32K_CR) < (start + 20)) ; /* wait for 40 cycles */
327 cend = __raw_readl(OMAP34XX_GPT1 + TCRR); /* get end sys_clk count */
328 cdiff = cend - cstart; /* get elapsed ticks */
331 /* based on number of ticks assign speed */
334 else if (cdiff > 15200)
336 else if (cdiff > 13000)
338 else if (cdiff > 9000)
340 else if (cdiff > 7600)
346 /******************************************************************************
347 * get_sys_clkin_sel() - returns the sys_clkin_sel field value based on
348 * -- input oscillator clock frequency.
350 *****************************************************************************/
351 void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel)
353 if (osc_clk == S38_4M)
355 else if (osc_clk == S26M)
357 else if (osc_clk == S19_2M)
359 else if (osc_clk == S13M)
361 else if (osc_clk == S12M)
365 /******************************************************************************
366 * prcm_init() - inits clocks for PRCM as defined in clocks.h
367 * -- called from SRAM, or Flash (using temp SRAM stack).
368 *****************************************************************************/
371 u32 osc_clk = 0, sys_clkin_sel;
372 dpll_param *dpll_param_p;
373 u32 clk_index, sil_index;
375 /* Gauge the input clock speed and find out the sys_clkin_sel
376 * value corresponding to the input clock.
378 osc_clk = get_osc_clk_speed();
379 get_sys_clkin_sel(osc_clk, &sys_clkin_sel);
381 sr32(PRM_CLKSEL, 0, 3, sys_clkin_sel); /* set input crystal speed */
383 /* If the input clock is greater than 19.2M always divide/2 */
384 if (sys_clkin_sel > 2) {
385 sr32(PRM_CLKSRC_CTRL, 6, 2, 2); /* input clock divider */
386 clk_index = sys_clkin_sel / 2;
388 sr32(PRM_CLKSRC_CTRL, 6, 2, 1); /* input clock divider */
389 clk_index = sys_clkin_sel;
392 sr32(PRM_CLKSRC_CTRL, 0, 2, 0);/* Bypass mode: T2 inputs a square clock */
394 /* The DPLL tables are defined according to sysclk value and
395 * silicon revision. The clk_index value will be used to get
396 * the values for that input sysclk from the DPLL param table
397 * and sil_index will get the values for that SysClk for the
398 * appropriate silicon rev.
400 sil_index = get_cpu_rev() - 1;
402 /* Unlock MPU DPLL (slows things down, and needed later) */
403 sr32(CM_CLKEN_PLL_MPU, 0, 3, PLL_LOW_POWER_BYPASS);
404 wait_on_value(BIT0, 0, CM_IDLEST_PLL_MPU, LDELAY);
406 /* Getting the base address of Core DPLL param table */
407 dpll_param_p = (dpll_param *) get_core_dpll_param();
408 /* Moving it to the right sysclk and ES rev base */
409 dpll_param_p = dpll_param_p + 3 * clk_index + sil_index;
411 /* sr32(CM_CLKSEL2_EMU) set override to work when asleep */
412 sr32(CM_CLKEN_PLL, 0, 3, PLL_FAST_RELOCK_BYPASS);
413 wait_on_value(BIT0, 0, CM_IDLEST_CKGEN, LDELAY);
415 /* For 3430 ES1.0 Errata 1.50, default value directly doesnt
416 work. write another value and then default value. */
417 sr32(CM_CLKSEL1_EMU, 16, 5, CORE_M3X2 + 1); /* m3x2 */
418 sr32(CM_CLKSEL1_EMU, 16, 5, CORE_M3X2); /* m3x2 */
419 sr32(CM_CLKSEL1_PLL, 27, 2, dpll_param_p->m2); /* Set M2 */
420 sr32(CM_CLKSEL1_PLL, 16, 11, dpll_param_p->m); /* Set M */
421 sr32(CM_CLKSEL1_PLL, 8, 7, dpll_param_p->n); /* Set N */
422 sr32(CM_CLKSEL1_PLL, 6, 1, 0); /* 96M Src */
423 sr32(CM_CLKSEL_CORE, 8, 4, CORE_SSI_DIV); /* ssi */
424 sr32(CM_CLKSEL_CORE, 4, 2, CORE_FUSB_DIV); /* fsusb */
425 sr32(CM_CLKSEL_CORE, 2, 2, CORE_L4_DIV); /* l4 */
426 sr32(CM_CLKSEL_CORE, 0, 2, CORE_L3_DIV); /* l3 */
427 sr32(CM_CLKSEL_GFX, 0, 3, GFX_DIV); /* gfx */
428 sr32(CM_CLKSEL_WKUP, 1, 2, WKUP_RSM); /* reset mgr */
429 sr32(CM_CLKEN_PLL, 4, 4, dpll_param_p->fsel); /* FREQSEL */
430 sr32(CM_CLKEN_PLL, 0, 3, PLL_LOCK); /* lock mode */
431 wait_on_value(BIT0, 1, CM_IDLEST_CKGEN, LDELAY);
433 /* Getting the base address to PER DPLL param table */
434 dpll_param_p = (dpll_param *) get_per_dpll_param();
435 /* Moving it to the right sysclk base */
436 dpll_param_p = dpll_param_p + clk_index;
438 sr32(CM_CLKEN_PLL, 16, 3, PLL_STOP);
439 wait_on_value(BIT1, 0, CM_IDLEST_CKGEN, LDELAY);
440 sr32(CM_CLKSEL1_EMU, 24, 5, PER_M6X2); /* set M6 */
441 sr32(CM_CLKSEL_CAM, 0, 5, PER_M5X2); /* set M5 */
442 sr32(CM_CLKSEL_DSS, 0, 5, PER_M4X2); /* set M4 */
443 sr32(CM_CLKSEL_DSS, 8, 5, PER_M3X2); /* set M3 */
445 if (0) {/*For DM3730*/
446 sr32(CM_CLKSEL3_PLL, 0, 5, CORE_DPLL_PARAM_M2); /* set M2 */
447 sr32(CM_CLKSEL2_PLL, 8, 11, CORE_DPLL_PARAM_M); /* set m */
448 sr32(CM_CLKSEL2_PLL, 0, 7, CORE_DPLL_PARAM_N); /* set n */
450 sr32(CM_CLKSEL3_PLL, 0, 5, dpll_param_p->m2); /* set M2 */
451 sr32(CM_CLKSEL2_PLL, 8, 11, dpll_param_p->m); /* set m */
452 sr32(CM_CLKSEL2_PLL, 0, 7, dpll_param_p->n); /* set n */
455 sr32(CM_CLKEN_PLL, 20, 4, dpll_param_p->fsel); /* FREQSEL */
456 sr32(CM_CLKEN_PLL, 16, 3, PLL_LOCK); /* lock mode */
457 wait_on_value(BIT1, 2, CM_IDLEST_CKGEN, LDELAY);
459 /* Getting the base address to MPU DPLL param table */
460 dpll_param_p = (dpll_param *) get_mpu_dpll_param();
462 /* Moving it to the right sysclk and ES rev base */
463 dpll_param_p = dpll_param_p + 3 * clk_index + sil_index;
465 /* MPU DPLL (unlocked already) */
466 sr32(CM_CLKSEL2_PLL_MPU, 0, 5, dpll_param_p->m2); /* Set M2 */
467 sr32(CM_CLKSEL1_PLL_MPU, 8, 11, dpll_param_p->m); /* Set M */
468 sr32(CM_CLKSEL1_PLL_MPU, 0, 7, dpll_param_p->n); /* Set N */
469 sr32(CM_CLKEN_PLL_MPU, 4, 4, dpll_param_p->fsel); /* FREQSEL */
470 sr32(CM_CLKEN_PLL_MPU, 0, 3, PLL_LOCK); /* lock mode */
471 wait_on_value(BIT0, 1, CM_IDLEST_PLL_MPU, LDELAY);
473 /* Getting the base address to IVA DPLL param table */
474 dpll_param_p = (dpll_param *) get_iva_dpll_param();
475 /* Moving it to the right sysclk and ES rev base */
476 dpll_param_p = dpll_param_p + 3 * clk_index + sil_index;
477 /* IVA DPLL (set to 12*20=240MHz) */
478 sr32(CM_CLKEN_PLL_IVA2, 0, 3, PLL_STOP);
479 wait_on_value(BIT0, 0, CM_IDLEST_PLL_IVA2, LDELAY);
480 sr32(CM_CLKSEL2_PLL_IVA2, 0, 5, dpll_param_p->m2); /* set M2 */
481 sr32(CM_CLKSEL1_PLL_IVA2, 8, 11, dpll_param_p->m); /* set M */
482 sr32(CM_CLKSEL1_PLL_IVA2, 0, 7, dpll_param_p->n); /* set N */
483 sr32(CM_CLKEN_PLL_IVA2, 4, 4, dpll_param_p->fsel); /* FREQSEL */
484 sr32(CM_CLKEN_PLL_IVA2, 0, 3, PLL_LOCK); /* lock mode */
485 wait_on_value(BIT0, 1, CM_IDLEST_PLL_IVA2, LDELAY);
487 /* Set up GPTimers to sys_clk source only */
488 sr32(CM_CLKSEL_PER, 0, 8, 0xff);
489 sr32(CM_CLKSEL_WKUP, 0, 1, 1);
494 /*****************************************
495 * Routine: secure_unlock
496 * Description: Setup security registers for access
498 *****************************************/
499 void secure_unlock(void)
501 /* Permission values for registers -Full fledged permissions to all */
502 #define UNLOCK_1 0xFFFFFFFF
503 #define UNLOCK_2 0x00000000
504 #define UNLOCK_3 0x0000FFFF
505 /* Protection Module Register Target APE (PM_RT) */
506 __raw_writel(UNLOCK_1, RT_REQ_INFO_PERMISSION_1);
507 __raw_writel(UNLOCK_1, RT_READ_PERMISSION_0);
508 __raw_writel(UNLOCK_1, RT_WRITE_PERMISSION_0);
509 __raw_writel(UNLOCK_2, RT_ADDR_MATCH_1);
511 __raw_writel(UNLOCK_3, GPMC_REQ_INFO_PERMISSION_0);
512 __raw_writel(UNLOCK_3, GPMC_READ_PERMISSION_0);
513 __raw_writel(UNLOCK_3, GPMC_WRITE_PERMISSION_0);
515 __raw_writel(UNLOCK_3, OCM_REQ_INFO_PERMISSION_0);
516 __raw_writel(UNLOCK_3, OCM_READ_PERMISSION_0);
517 __raw_writel(UNLOCK_3, OCM_WRITE_PERMISSION_0);
518 __raw_writel(UNLOCK_2, OCM_ADDR_MATCH_2);
521 __raw_writel(UNLOCK_3, IVA2_REQ_INFO_PERMISSION_0);
522 __raw_writel(UNLOCK_3, IVA2_READ_PERMISSION_0);
523 __raw_writel(UNLOCK_3, IVA2_WRITE_PERMISSION_0);
525 __raw_writel(UNLOCK_1, SMS_RG_ATT0); /* SDRC region 0 public */
528 /**********************************************************
529 * Routine: try_unlock_sram()
530 * Description: If chip is GP type, unlock the SRAM for
532 ***********************************************************/
533 void try_unlock_memory(void)
537 /* if GP device unlock device SRAM for general use */
538 /* secure code breaks for Secure/Emulation device - HS/E/T */
539 mode = get_device_type();
540 if (mode == GP_DEVICE)
545 /**********************************************************
547 * Description: Does early system init of muxing and clocks.
548 * - Called at time when only stack is available.
549 **********************************************************/
554 #ifdef CONFIG_3430_AS_3410
555 /* setup the scalability control register for
556 * 3430 to work in 3410 mode
558 __raw_writel(0x5ABF, CONTROL_SCALABLE_OMAP_OCP);
565 config_3430sdram_ddr();
568 int tao3530_revision(void)
571 omap_request_gpio(65);
572 omap_request_gpio(1);
573 omap_set_gpio_direction(65,1);
574 omap_set_gpio_direction(1,1);
576 rev = omap_get_gpio_datain(65) << 1 |
577 omap_get_gpio_datain(1);
585 /*******************************************************
586 * Routine: misc_init_r
587 * Description: Print revision information
588 ********************************************************/
589 int misc_init_r(void)
592 rev = tao3530_revision();
596 printf("TAO-3530 REV Reserve 1\n");
599 printf("TAO-3530 REV Reserve 2\n");
602 printf("TAO-3530 REV Cx\n");
605 printf("TAO-3530 REV Ax/Bx\n");
608 printf("Incorrect\n");
613 /******************************************************
614 * Routine: wait_for_command_complete
615 * Description: Wait for posting to finish on watchdog
616 ******************************************************/
617 void wait_for_command_complete(unsigned int wd_base)
621 pending = __raw_readl(wd_base + WWPS);
625 /****************************************
626 * Routine: watchdog_init
627 * Description: Shut down watch dogs
628 *****************************************/
629 void watchdog_init(void)
631 /* There are 3 watch dogs WD1=Secure, WD2=MPU, WD3=IVA. WD1 is
632 * either taken care of by ROM (HS/EMU) or not accessible (GP).
633 * We need to take care of WD2-MPU or take a PRCM reset. WD3
634 * should not be running and does not generate a PRCM reset.
636 sr32(CM_FCLKEN_WKUP, 5, 1, 1);
637 sr32(CM_ICLKEN_WKUP, 5, 1, 1);
638 wait_on_value(BIT5, 0x20, CM_IDLEST_WKUP, 5); /* some issue here */
640 __raw_writel(WD_UNLOCK1, WD2_BASE + WSPR);
641 wait_for_command_complete(WD2_BASE);
642 __raw_writel(WD_UNLOCK2, WD2_BASE + WSPR);
645 /**********************************************
647 * Description: sets uboots idea of sdram size
648 **********************************************/
654 /*****************************************************************
655 * Routine: peripheral_enable
656 * Description: Enable the clks & power for perifs (GPT2, UART1,...)
657 ******************************************************************/
658 void per_clocks_enable(void)
660 /* Enable GP2 timer. */
661 sr32(CM_CLKSEL_PER, 0, 1, 0x1); /* GPT2 = sys clk */
662 sr32(CM_ICLKEN_PER, 3, 1, 0x1); /* ICKen GPT2 */
663 sr32(CM_FCLKEN_PER, 3, 1, 0x1); /* FCKen GPT2 */
667 sr32(CM_FCLKEN1_CORE, 13, 1, 0x1);
668 sr32(CM_ICLKEN1_CORE, 13, 1, 0x1);
671 sr32(CM_FCLKEN_PER, 11, 1, 0x1);
672 sr32(CM_ICLKEN_PER, 11, 1, 0x1);
676 #ifdef CONFIG_DRIVER_OMAP34XX_I2C
677 /* Turn on all 3 I2C clocks */
678 sr32(CM_FCLKEN1_CORE, 15, 3, 0x7);
679 sr32(CM_ICLKEN1_CORE, 15, 3, 0x7); /* I2C1,2,3 = on */
682 /* Enable the ICLK for 32K Sync Timer as its used in udelay */
683 sr32(CM_ICLKEN_WKUP, 2, 1, 0x1);
685 sr32(CM_FCLKEN_IVA2, 0, 32, FCK_IVA2_ON);
686 sr32(CM_FCLKEN1_CORE, 0, 32, FCK_CORE1_ON);
687 sr32(CM_ICLKEN1_CORE, 0, 32, ICK_CORE1_ON);
688 sr32(CM_ICLKEN2_CORE, 0, 32, ICK_CORE2_ON);
689 sr32(CM_FCLKEN_WKUP, 0, 32, FCK_WKUP_ON);
690 sr32(CM_ICLKEN_WKUP, 0, 32, ICK_WKUP_ON);
691 sr32(CM_FCLKEN_DSS, 0, 32, FCK_DSS_ON);
692 sr32(CM_ICLKEN_DSS, 0, 32, ICK_DSS_ON);
693 sr32(CM_FCLKEN_CAM, 0, 32, FCK_CAM_ON);
694 sr32(CM_ICLKEN_CAM, 0, 32, ICK_CAM_ON);
695 sr32(CM_FCLKEN_PER, 0, 32, FCK_PER_ON);
696 sr32(CM_ICLKEN_PER, 0, 32, ICK_PER_ON);
698 /* Enable GPIO 5 & GPIO 6 clocks */
699 sr32(CM_FCLKEN_PER, 17, 2, 0x3);
700 sr32(CM_ICLKEN_PER, 17, 2, 0x3);
705 /* Set MUX for UART, GPMC, SDRC, GPIO */
707 #define MUX_VAL(OFFSET,VALUE)\
708 __raw_writew((VALUE), OMAP34XX_CTRL_BASE + (OFFSET));
710 #define CP(x) (CONTROL_PADCONF_##x)
713 * IDIS - Input Disable
714 * PTD - Pull type Down
716 * DIS - Pull type selection is inactive
717 * EN - Pull type selection is active
719 * The commented string gives the final mux configuration for that pin
721 #define MUX_DEFAULT()\
722 MUX_VAL(CP(SDRC_D0), (IEN | PTD | DIS | M0)) /*SDRC_D0*/\
723 MUX_VAL(CP(SDRC_D1), (IEN | PTD | DIS | M0)) /*SDRC_D1*/\
724 MUX_VAL(CP(SDRC_D2), (IEN | PTD | DIS | M0)) /*SDRC_D2*/\
725 MUX_VAL(CP(SDRC_D3), (IEN | PTD | DIS | M0)) /*SDRC_D3*/\
726 MUX_VAL(CP(SDRC_D4), (IEN | PTD | DIS | M0)) /*SDRC_D4*/\
727 MUX_VAL(CP(SDRC_D5), (IEN | PTD | DIS | M0)) /*SDRC_D5*/\
728 MUX_VAL(CP(SDRC_D6), (IEN | PTD | DIS | M0)) /*SDRC_D6*/\
729 MUX_VAL(CP(SDRC_D7), (IEN | PTD | DIS | M0)) /*SDRC_D7*/\
730 MUX_VAL(CP(SDRC_D8), (IEN | PTD | DIS | M0)) /*SDRC_D8*/\
731 MUX_VAL(CP(SDRC_D9), (IEN | PTD | DIS | M0)) /*SDRC_D9*/\
732 MUX_VAL(CP(SDRC_D10), (IEN | PTD | DIS | M0)) /*SDRC_D10*/\
733 MUX_VAL(CP(SDRC_D11), (IEN | PTD | DIS | M0)) /*SDRC_D11*/\
734 MUX_VAL(CP(SDRC_D12), (IEN | PTD | DIS | M0)) /*SDRC_D12*/\
735 MUX_VAL(CP(SDRC_D13), (IEN | PTD | DIS | M0)) /*SDRC_D13*/\
736 MUX_VAL(CP(SDRC_D14), (IEN | PTD | DIS | M0)) /*SDRC_D14*/\
737 MUX_VAL(CP(SDRC_D15), (IEN | PTD | DIS | M0)) /*SDRC_D15*/\
738 MUX_VAL(CP(SDRC_D16), (IEN | PTD | DIS | M0)) /*SDRC_D16*/\
739 MUX_VAL(CP(SDRC_D17), (IEN | PTD | DIS | M0)) /*SDRC_D17*/\
740 MUX_VAL(CP(SDRC_D18), (IEN | PTD | DIS | M0)) /*SDRC_D18*/\
741 MUX_VAL(CP(SDRC_D19), (IEN | PTD | DIS | M0)) /*SDRC_D19*/\
742 MUX_VAL(CP(SDRC_D20), (IEN | PTD | DIS | M0)) /*SDRC_D20*/\
743 MUX_VAL(CP(SDRC_D21), (IEN | PTD | DIS | M0)) /*SDRC_D21*/\
744 MUX_VAL(CP(SDRC_D22), (IEN | PTD | DIS | M0)) /*SDRC_D22*/\
745 MUX_VAL(CP(SDRC_D23), (IEN | PTD | DIS | M0)) /*SDRC_D23*/\
746 MUX_VAL(CP(SDRC_D24), (IEN | PTD | DIS | M0)) /*SDRC_D24*/\
747 MUX_VAL(CP(SDRC_D25), (IEN | PTD | DIS | M0)) /*SDRC_D25*/\
748 MUX_VAL(CP(SDRC_D26), (IEN | PTD | DIS | M0)) /*SDRC_D26*/\
749 MUX_VAL(CP(SDRC_D27), (IEN | PTD | DIS | M0)) /*SDRC_D27*/\
750 MUX_VAL(CP(SDRC_D28), (IEN | PTD | DIS | M0)) /*SDRC_D28*/\
751 MUX_VAL(CP(SDRC_D29), (IEN | PTD | DIS | M0)) /*SDRC_D29*/\
752 MUX_VAL(CP(SDRC_D30), (IEN | PTD | DIS | M0)) /*SDRC_D30*/\
753 MUX_VAL(CP(SDRC_D31), (IEN | PTD | DIS | M0)) /*SDRC_D31*/\
754 MUX_VAL(CP(SDRC_CLK), (IEN | PTD | DIS | M0)) /*SDRC_CLK*/\
755 MUX_VAL(CP(SDRC_DQS0), (IEN | PTD | DIS | M0)) /*SDRC_DQS0*/\
756 MUX_VAL(CP(SDRC_DQS1), (IEN | PTD | DIS | M0)) /*SDRC_DQS1*/\
757 MUX_VAL(CP(SDRC_DQS2), (IEN | PTD | DIS | M0)) /*SDRC_DQS2*/\
758 MUX_VAL(CP(SDRC_DQS3), (IEN | PTD | DIS | M0)) /*SDRC_DQS3*/\
759 MUX_VAL(CP(GPMC_A1), (IDIS | PTD | DIS | M0)) /*GPMC_A1*/\
760 MUX_VAL(CP(GPMC_A2), (IDIS | PTD | DIS | M0)) /*GPMC_A2*/\
761 MUX_VAL(CP(GPMC_A3), (IDIS | PTD | DIS | M0)) /*GPMC_A3*/\
762 MUX_VAL(CP(GPMC_A4), (IDIS | PTD | DIS | M0)) /*GPMC_A4*/\
763 MUX_VAL(CP(GPMC_A5), (IDIS | PTD | DIS | M0)) /*GPMC_A5*/\
764 MUX_VAL(CP(GPMC_A6), (IDIS | PTD | DIS | M0)) /*GPMC_A6*/\
765 MUX_VAL(CP(GPMC_A7), (IDIS | PTD | DIS | M0)) /*GPMC_A7*/\
766 MUX_VAL(CP(GPMC_A8), (IDIS | PTD | DIS | M0)) /*GPMC_A8*/\
767 MUX_VAL(CP(GPMC_A9), (IDIS | PTD | DIS | M0)) /*GPMC_A9*/\
768 MUX_VAL(CP(GPMC_A10), (IDIS | PTD | DIS | M0)) /*GPMC_A10*/\
769 MUX_VAL(CP(GPMC_D0), (IEN | PTD | DIS | M0)) /*GPMC_D0*/\
770 MUX_VAL(CP(GPMC_D1), (IEN | PTD | DIS | M0)) /*GPMC_D1*/\
771 MUX_VAL(CP(GPMC_D2), (IEN | PTD | DIS | M0)) /*GPMC_D2*/\
772 MUX_VAL(CP(GPMC_D3), (IEN | PTD | DIS | M0)) /*GPMC_D3*/\
773 MUX_VAL(CP(GPMC_D4), (IEN | PTD | DIS | M0)) /*GPMC_D4*/\
774 MUX_VAL(CP(GPMC_D5), (IEN | PTD | DIS | M0)) /*GPMC_D5*/\
775 MUX_VAL(CP(GPMC_D6), (IEN | PTD | DIS | M0)) /*GPMC_D6*/\
776 MUX_VAL(CP(GPMC_D7), (IEN | PTD | DIS | M0)) /*GPMC_D7*/\
777 MUX_VAL(CP(GPMC_D8), (IEN | PTD | DIS | M0)) /*GPMC_D8*/\
778 MUX_VAL(CP(GPMC_D9), (IEN | PTD | DIS | M0)) /*GPMC_D9*/\
779 MUX_VAL(CP(GPMC_D10), (IEN | PTD | DIS | M0)) /*GPMC_D10*/\
780 MUX_VAL(CP(GPMC_D11), (IEN | PTD | DIS | M0)) /*GPMC_D11*/\
781 MUX_VAL(CP(GPMC_D12), (IEN | PTD | DIS | M0)) /*GPMC_D12*/\
782 MUX_VAL(CP(GPMC_D13), (IEN | PTD | DIS | M0)) /*GPMC_D13*/\
783 MUX_VAL(CP(GPMC_D14), (IEN | PTD | DIS | M0)) /*GPMC_D14*/\
784 MUX_VAL(CP(GPMC_D15), (IEN | PTD | DIS | M0)) /*GPMC_D15*/\
785 MUX_VAL(CP(GPMC_nCS0), (IDIS | PTU | EN | M0)) /*GPMC_nCS0*/\
786 MUX_VAL(CP(GPMC_nCS1), (IDIS | PTU | EN | M0)) /*GPMC_nCS1*/\
787 MUX_VAL(CP(GPMC_nCS2), (IDIS | PTU | EN | M0)) /*GPMC_nCS2*/\
788 MUX_VAL(CP(GPMC_nCS3), (IDIS | PTU | EN | M0)) /*GPMC_nCS3*/\
789 MUX_VAL(CP(GPMC_nCS4), (IDIS | PTU | EN | M0)) /*GPMC_nCS4*/\
790 MUX_VAL(CP(GPMC_nCS5), (IDIS | PTD | DIS | M0)) /*GPMC_nCS5*/\
791 MUX_VAL(CP(GPMC_nCS6), (IEN | PTD | DIS | M1)) /*GPMC_nCS6*/\
792 MUX_VAL(CP(GPMC_nCS7), (IEN | PTU | EN | M1)) /*GPMC_nCS7*/\
793 MUX_VAL(CP(GPMC_CLK), (IDIS | PTD | DIS | M0)) /*GPMC_CLK*/\
794 MUX_VAL(CP(GPMC_nADV_ALE), (IDIS | PTD | DIS | M0)) /*GPMC_nADV_ALE*/\
795 MUX_VAL(CP(GPMC_nOE), (IDIS | PTD | DIS | M0)) /*GPMC_nOE*/\
796 MUX_VAL(CP(GPMC_nWE), (IDIS | PTD | DIS | M0)) /*GPMC_nWE*/\
797 MUX_VAL(CP(GPMC_nBE0_CLE), (IDIS | PTD | DIS | M0)) /*GPMC_nBE0_CLE*/\
798 MUX_VAL(CP(GPMC_nBE1), (IEN | PTD | DIS | M0)) /*GPIO_61*/\
799 MUX_VAL(CP(GPMC_nWP), (IEN | PTD | DIS | M0)) /*GPMC_nWP*/\
800 MUX_VAL(CP(GPMC_WAIT0), (IEN | PTU | EN | M0)) /*GPMC_WAIT0*/\
801 MUX_VAL(CP(GPMC_WAIT1), (IEN | PTU | EN | M0)) /*GPMC_WAIT1*/\
802 MUX_VAL(CP(GPMC_WAIT2), (IEN | PTU | EN | M0)) /*GPIO_64*/\
803 MUX_VAL(CP(GPMC_WAIT3), (IEN | PTU | EN | M4)) /*GPIO_65*/\
804 MUX_VAL(CP(DSS_DATA18), (IEN | PTD | DIS | M4)) /*GPIO_88*/\
805 MUX_VAL(CP(DSS_DATA19), (IEN | PTD | DIS | M4)) /*GPIO_89*/\
806 MUX_VAL(CP(DSS_DATA20), (IEN | PTD | DIS | M4)) /*GPIO_90*/\
807 MUX_VAL(CP(DSS_DATA21), (IEN | PTD | DIS | M4)) /*GPIO_91*/\
808 MUX_VAL(CP(CAM_WEN), (IEN | PTD | DIS | M4)) /*GPIO_167*/\
809 MUX_VAL(CP(MMC1_CLK), (IDIS | PTU | EN | M0)) /*MMC1_CLK*/\
810 MUX_VAL(CP(MMC1_CMD), (IEN | PTU | EN | M0)) /*MMC1_CMD*/\
811 MUX_VAL(CP(MMC1_DAT0), (IEN | PTU | EN | M0)) /*MMC1_DAT0*/\
812 MUX_VAL(CP(MMC1_DAT1), (IEN | PTU | EN | M0)) /*MMC1_DAT1*/\
813 MUX_VAL(CP(MMC1_DAT2), (IEN | PTU | EN | M0)) /*MMC1_DAT2*/\
814 MUX_VAL(CP(MMC1_DAT3), (IEN | PTU | EN | M0)) /*MMC1_DAT3*/\
815 MUX_VAL(CP(MMC1_DAT4), (IEN | PTU | EN | M0)) /*MMC1_DAT4*/\
816 MUX_VAL(CP(MMC1_DAT5), (IEN | PTU | EN | M0)) /*MMC1_DAT5*/\
817 MUX_VAL(CP(MMC1_DAT6), (IEN | PTU | EN | M0)) /*MMC1_DAT6*/\
818 MUX_VAL(CP(MMC1_DAT7), (IEN | PTU | EN | M0)) /*MMC1_DAT7*/\
819 MUX_VAL(CP(UART1_TX), (IDIS | PTD | DIS | M0)) /*UART1_TX*/\
820 MUX_VAL(CP(UART1_RTS), (IDIS | PTD | DIS | M4)) /*GPIO_149*/\
821 MUX_VAL(CP(UART1_CTS), (IDIS | PTD | DIS | M4)) /*GPIO_150*/\
822 MUX_VAL(CP(UART1_RX), (IEN | PTD | DIS | M0)) /*UART1_RX*/\
823 MUX_VAL(CP(UART3_CTS_RCTX), (IEN | PTD | EN | M0)) /*UART3_CTS_RCTX */\
824 MUX_VAL(CP(UART3_RTS_SD), (IDIS | PTD | DIS | M0)) /*UART3_RTS_SD */\
825 MUX_VAL(CP(UART3_RX_IRRX), (IEN | PTD | DIS | M0)) /*UART3_RX_IRRX*/\
826 MUX_VAL(CP(UART3_TX_IRTX), (IDIS | PTD | DIS | M0)) /*UART3_TX_IRTX*/\
827 MUX_VAL(CP(I2C1_SCL), (IEN | PTU | EN | M0)) /*I2C1_SCL*/\
828 MUX_VAL(CP(I2C1_SDA), (IEN | PTU | EN | M0)) /*I2C1_SDA*/\
829 MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0)) /*I2C2_SCL*/\
830 MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0)) /*I2C2_SDA*/\
831 MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0)) /*I2C3_SCL*/\
832 MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0)) /*I2C3_SDA*/\
833 MUX_VAL(CP(I2C4_SCL), (IEN | PTU | EN | M0)) /*I2C4_SCL*/\
834 MUX_VAL(CP(I2C4_SDA), (IEN | PTU | EN | M0)) /*I2C4_SDA*/\
835 MUX_VAL(CP(McSPI1_CLK), (IEN | PTU | EN | M4)) /*GPIO_171*/\
836 MUX_VAL(CP(McSPI1_SIMO), (IEN | PTU | EN | M4)) /*GPIO_172*/\
837 MUX_VAL(CP(McSPI1_SOMI), (IEN | PTU | EN | M4)) /*GPIO_173*/\
838 MUX_VAL(CP(McBSP1_DX), (IEN | PTD | DIS | M4)) /*GPIO_158*/\
839 MUX_VAL(CP(SYS_32K), (IEN | PTD | DIS | M0)) /*SYS_32K*/\
840 MUX_VAL(CP(SYS_BOOT0), (IEN | PTD | DIS | M4)) /*GPIO_2 */\
841 MUX_VAL(CP(SYS_BOOT1), (IEN | PTD | DIS | M4)) /*GPIO_3 */\
842 MUX_VAL(CP(SYS_BOOT2), (IEN | PTD | DIS | M4)) /*GPIO_4 */\
843 MUX_VAL(CP(SYS_BOOT3), (IEN | PTD | DIS | M4)) /*GPIO_5 */\
844 MUX_VAL(CP(SYS_BOOT4), (IEN | PTD | DIS | M4)) /*GPIO_6 */\
845 MUX_VAL(CP(SYS_BOOT5), (IEN | PTD | DIS | M4)) /*GPIO_7 */\
846 MUX_VAL(CP(SYS_BOOT6), (IEN | PTD | DIS | M4)) /*GPIO_8 */\
847 MUX_VAL(CP(SYS_CLKOUT2), (IEN | PTU | EN | M4)) /*GPIO_186*/\
848 MUX_VAL(CP(SYS_CLKREQ), (IEN | PTU | EN | M4)) /*GPIO_1*/\
849 MUX_VAL(CP(JTAG_nTRST), (IEN | PTD | DIS | M0)) /*JTAG_nTRST*/\
850 MUX_VAL(CP(JTAG_TCK), (IEN | PTD | DIS | M0)) /*JTAG_TCK*/\
851 MUX_VAL(CP(JTAG_TMS), (IEN | PTD | DIS | M0)) /*JTAG_TMS*/\
852 MUX_VAL(CP(JTAG_TDI), (IEN | PTD | DIS | M0)) /*JTAG_TDI*/\
853 MUX_VAL(CP(JTAG_EMU0), (IEN | PTD | DIS | M0)) /*JTAG_EMU0*/\
854 MUX_VAL(CP(JTAG_EMU1), (IEN | PTD | DIS | M0)) /*JTAG_EMU1*/\
855 MUX_VAL(CP(ETK_CLK), (IEN | PTD | DIS | M4)) /*GPIO_12*/\
856 MUX_VAL(CP(ETK_CTL), (IEN | PTD | DIS | M4)) /*GPIO_13*/\
857 MUX_VAL(CP(ETK_D0), (IEN | PTD | DIS | M4)) /*GPIO_14*/\
858 MUX_VAL(CP(ETK_D1), (IEN | PTD | DIS | M4)) /*GPIO_15*/\
859 MUX_VAL(CP(ETK_D2), (IEN | PTD | DIS | M4)) /*GPIO_16*/\
860 MUX_VAL(CP(ETK_D11), (IEN | PTD | DIS | M4)) /*GPIO_25*/\
861 MUX_VAL(CP(ETK_D12), (IEN | PTD | DIS | M4)) /*GPIO_26*/\
862 MUX_VAL(CP(ETK_D13), (IEN | PTD | DIS | M4)) /*GPIO_27*/\
863 MUX_VAL(CP(ETK_D14), (IEN | PTD | DIS | M4)) /*GPIO_28*/\
864 MUX_VAL(CP(ETK_D15), (IEN | PTD | DIS | M4)) /*GPIO_29 */\
865 MUX_VAL(CP(sdrc_cke0), (IDIS | PTU | EN | M0)) /*sdrc_cke0 */\
866 MUX_VAL(CP(sdrc_cke1), (IDIS | PTD | DIS | M7)) /*sdrc_cke1 not used*/
868 /**********************************************************
869 * Routine: set_muxconf_regs
870 * Description: Setting up the configuration Mux registers
871 * specific to the hardware. Many pins need
872 * to be moved from protect to primary mode.
873 *********************************************************/
874 void set_muxconf_regs(void)
879 /**********************************************************
880 * Routine: nand+_init
881 * Description: Set up nand for nand and jffs2 commands
882 *********************************************************/
884 #define CONFIG_NAND_BUS_WIDTH 16
888 /* global settings */
889 __raw_writel(0x10, GPMC_SYSCONFIG); /* smart idle */
890 __raw_writel(0x0, GPMC_IRQENABLE); /* isr's sources masked */
891 __raw_writel(0, GPMC_TIMEOUT_CONTROL);/* timeout disable */
893 #if CONFIG_NAND_BUS_WIDTH == 16
894 __raw_writel((__raw_readl(GPMC_CONFIG1 + GPMC_CONFIG_CS0)&~0x3000)|0x1000, GPMC_CONFIG1 + GPMC_CONFIG_CS0);
896 __raw_writel((__raw_readl(GPMC_CONFIG1 + GPMC_CONFIG_CS0)&~0x3000),GPMC_CONFIG1 + GPMC_CONFIG_CS0);
898 /* Set the GPMC Vals, NAND is mapped at CS0, oneNAND at CS0.
899 * We configure only GPMC CS0 with required values. Configiring other devices
900 * at other CS is done in u-boot. So we don't have to bother doing it here.
902 __raw_writel(0 , GPMC_CONFIG7 + GPMC_CONFIG_CS0);
905 if ((get_mem_type() == GPMC_NAND) || (get_mem_type() == MMC_NAND)) {
906 __raw_writel(M_NAND_GPMC_CONFIG1, GPMC_CONFIG1 + GPMC_CONFIG_CS0);
907 __raw_writel(M_NAND_GPMC_CONFIG2, GPMC_CONFIG2 + GPMC_CONFIG_CS0);
908 __raw_writel(M_NAND_GPMC_CONFIG3, GPMC_CONFIG3 + GPMC_CONFIG_CS0);
909 __raw_writel(M_NAND_GPMC_CONFIG4, GPMC_CONFIG4 + GPMC_CONFIG_CS0);
910 __raw_writel(M_NAND_GPMC_CONFIG5, GPMC_CONFIG5 + GPMC_CONFIG_CS0);
911 __raw_writel(M_NAND_GPMC_CONFIG6, GPMC_CONFIG6 + GPMC_CONFIG_CS0);
913 /* Enable the GPMC Mapping */
914 __raw_writel((((OMAP34XX_GPMC_CS0_SIZE & 0xF)<<8) |
915 ((NAND_BASE_ADR>>24) & 0x3F) |
916 (1<<6)), (GPMC_CONFIG7 + GPMC_CONFIG_CS0));
921 printf("Unsupported Chip!\n");
928 if ((get_mem_type() == GPMC_ONENAND) || (get_mem_type() == MMC_ONENAND)) {
929 __raw_writel(ONENAND_GPMC_CONFIG1, GPMC_CONFIG1 + GPMC_CONFIG_CS0);
930 __raw_writel(ONENAND_GPMC_CONFIG2, GPMC_CONFIG2 + GPMC_CONFIG_CS0);
931 __raw_writel(ONENAND_GPMC_CONFIG3, GPMC_CONFIG3 + GPMC_CONFIG_CS0);
932 __raw_writel(ONENAND_GPMC_CONFIG4, GPMC_CONFIG4 + GPMC_CONFIG_CS0);
933 __raw_writel(ONENAND_GPMC_CONFIG5, GPMC_CONFIG5 + GPMC_CONFIG_CS0);
934 __raw_writel(ONENAND_GPMC_CONFIG6, GPMC_CONFIG6 + GPMC_CONFIG_CS0);
936 /* Enable the GPMC Mapping */
937 __raw_writel((((OMAP34XX_GPMC_CS0_SIZE & 0xF)<<8) |
938 ((ONENAND_BASE>>24) & 0x3F) |
939 (1<<6)), (GPMC_CONFIG7 + GPMC_CONFIG_CS0));
942 if (onenand_chip()) {
944 printf("OneNAND Unsupported !\n");
952 #define DEBUG_LED1 149 /* gpio */
953 #define DEBUG_LED2 150 /* gpio */
959 /* Alternately turn the LEDs on and off */
960 p = (unsigned long *)OMAP34XX_GPIO5_BASE;
962 /* turn LED1 on and LED2 off */
963 *(unsigned long *)(p + 0x94) = 1 << (DEBUG_LED1 % 32);
964 *(unsigned long *)(p + 0x90) = 1 << (DEBUG_LED2 % 32);
966 /* delay for a while */
969 /* turn LED1 off and LED2 on */
970 *(unsigned long *)(p + 0x90) = 1 << (DEBUG_LED1 % 32);
971 *(unsigned long *)(p + 0x94) = 1 << (DEBUG_LED2 % 32);
973 /* delay for a while */
978 /* optionally do something like blinking LED */
979 void board_hang(void)
985 /******************************************************************************
986 * Dummy function to handle errors for EABI incompatibility
987 *****************************************************************************/
992 /******************************************************************************
993 * Dummy function to handle errors for EABI incompatibility
994 *****************************************************************************/