[people/ms/u-boot.git] / arch / arm / mach-at91 / spl.c

/*
 * Copyright (C) 2013 Atmel Corporation
 *		      Bo Shen <voice.shen@atmel.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <asm/io.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_wdt.h>
#include <asm/arch/clk.h>
#include <spl.h>

#if defined(CONFIG_AT91SAM9_WATCHDOG)
void at91_disable_wdt(void) { }
#else
void at91_disable_wdt(void)
{
	struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT;

	writel(AT91_WDT_MR_WDDIS, &wdt->mr);
}
#endif

#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \
    defined(CONFIG_SAMA5D4)
#include <asm/arch/sama5_boot.h>
struct {
	u32	r4;
} bootrom_stash __attribute__((section(".data")));

u32 spl_boot_device(void)
{
	u32 dev = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_FROM_OFF) &
		  ATMEL_SAMA5_BOOT_FROM_MASK;
	u32 off = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_DEV_ID_OFF) &
		  ATMEL_SAMA5_BOOT_DEV_ID_MASK;

#if defined(CONFIG_SYS_USE_MMC) || defined(CONFIG_SD_BOOT)
	if (dev == ATMEL_SAMA5_BOOT_FROM_MCI) {
#if defined(CONFIG_SPL_OF_CONTROL)
		return BOOT_DEVICE_MMC1;
#else
		if (off == 0)
			return BOOT_DEVICE_MMC1;
		if (off == 1)
			return BOOT_DEVICE_MMC2;
		printf("ERROR: MMC controller %i not present!\n", dev);
		hang();
#endif
	}
#endif

#if defined(CONFIG_SYS_USE_SERIALFLASH) || \
	defined(CONFIG_SYS_USE_SPIFLASH) || \
	defined(CONFIG_SPI_BOOT)
	if (dev == ATMEL_SAMA5_BOOT_FROM_SPI)
		return BOOT_DEVICE_SPI;
#endif
	if (dev == ATMEL_SAMA5_BOOT_FROM_QSPI)
		return BOOT_DEVICE_SPI;

	if (dev == ATMEL_SAMA5_BOOT_FROM_SMC)
		return BOOT_DEVICE_NAND;

	if (dev == ATMEL_SAMA5_BOOT_FROM_SAMBA)
		return BOOT_DEVICE_USB;

	printf("ERROR: SMC/TWI/QSPI boot device not supported!\n"
	       "       Boot device %i, controller number %i\n", dev, off);

	return BOOT_DEVICE_NONE;
}
#else
u32 spl_boot_device(void)
{
#if defined(CONFIG_SYS_USE_MMC) || defined(CONFIG_SD_BOOT)
	return BOOT_DEVICE_MMC1;
#elif defined(CONFIG_SYS_USE_NANDFLASH) || defined(CONFIG_NAND_BOOT)
	return BOOT_DEVICE_NAND;
#elif defined(CONFIG_SYS_USE_SERIALFLASH) || \
	defined(CONFIG_SYS_USE_SPIFLASH) || \
	defined(CONFIG_SPI_BOOT)
	return BOOT_DEVICE_SPI;
#endif
	return BOOT_DEVICE_NONE;
}
#endif
Commit	Line	Data
c5e8885a BS	1	/*
	2	* Copyright (C) 2013 Atmel Corporation
	3	* Bo Shen <voice.shen@atmel.com>
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
	9	#include <asm/io.h>
	10	#include <asm/arch/at91_common.h>
c5e8885a BS	11	#include <asm/arch/at91_wdt.h>
	12	#include <asm/arch/clk.h>
	13	#include <spl.h>
	14
49b461f3 HS	15	#if defined(CONFIG_AT91SAM9_WATCHDOG)
	16	void at91_disable_wdt(void) { }
	17	#else
5abc00d0	18	void at91_disable_wdt(void)
c5e8885a BS	19	{
	20	struct at91_wdt wdt = (struct at91_wdt )ATMEL_BASE_WDT;
	21
	22	writel(AT91_WDT_MR_WDDIS, &wdt->mr);
	23	}
49b461f3	24	#endif
c5e8885a	25
1c24f13f MV	26	#if defined(CONFIG_SAMA5D2) \|\| defined(CONFIG_SAMA5D3) \|\| \
	27	defined(CONFIG_SAMA5D4)
	28	#include <asm/arch/sama5_boot.h>
bb0c63a5 MV	29	struct {
	30	u32 r4;
	31	} bootrom_stash __attribute__((section(".data")));
	32
	33	u32 spl_boot_device(void)
	34	{
1c24f13f MV	35	u32 dev = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_FROM_OFF) &
	36	ATMEL_SAMA5_BOOT_FROM_MASK;
	37	u32 off = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_DEV_ID_OFF) &
	38	ATMEL_SAMA5_BOOT_DEV_ID_MASK;
bb0c63a5	39
a35c3402	40	#if defined(CONFIG_SYS_USE_MMC) \|\| defined(CONFIG_SD_BOOT)
1c24f13f	41	if (dev == ATMEL_SAMA5_BOOT_FROM_MCI) {
c00d7c33 WY	42	#if defined(CONFIG_SPL_OF_CONTROL)
	43	return BOOT_DEVICE_MMC1;
	44	#else
bb0c63a5 MV	45	if (off == 0)
	46	return BOOT_DEVICE_MMC1;
	47	if (off == 1)
	48	return BOOT_DEVICE_MMC2;
	49	printf("ERROR: MMC controller %i not present!\n", dev);
	50	hang();
c00d7c33	51	#endif
bb0c63a5 MV	52	}
	53	#endif
	54
a35c3402 WY	55	#if defined(CONFIG_SYS_USE_SERIALFLASH) \|\| \
	56	defined(CONFIG_SYS_USE_SPIFLASH) \|\| \
	57	defined(CONFIG_SPI_BOOT)
1c24f13f	58	if (dev == ATMEL_SAMA5_BOOT_FROM_SPI)
bb0c63a5 MV	59	return BOOT_DEVICE_SPI;
bb0c63a5 MV	60	#endif
dfd6d3a9 WY	61	if (dev == ATMEL_SAMA5_BOOT_FROM_QSPI)
dfd6d3a9 WY	62	return BOOT_DEVICE_SPI;
bb0c63a5	63
c00d7c33 WY	64	if (dev == ATMEL_SAMA5_BOOT_FROM_SMC)
	65	return BOOT_DEVICE_NAND;
	66
1c24f13f MV	67	if (dev == ATMEL_SAMA5_BOOT_FROM_SAMBA)
	68	return BOOT_DEVICE_USB;
	69
bb0c63a5 MV	70	printf("ERROR: SMC/TWI/QSPI boot device not supported!\n"
	71	" Boot device %i, controller number %i\n", dev, off);
	72
	73	return BOOT_DEVICE_NONE;
	74	}
	75	#else
c5e8885a BS	76	u32 spl_boot_device(void)
c5e8885a BS	77	{
a35c3402	78	#if defined(CONFIG_SYS_USE_MMC) \|\| defined(CONFIG_SD_BOOT)
c5e8885a	79	return BOOT_DEVICE_MMC1;
a35c3402	80	#elif defined(CONFIG_SYS_USE_NANDFLASH) \|\| defined(CONFIG_NAND_BOOT)
27019e4a	81	return BOOT_DEVICE_NAND;
a35c3402 WY	82	#elif defined(CONFIG_SYS_USE_SERIALFLASH) \|\| \
	83	defined(CONFIG_SYS_USE_SPIFLASH) \|\| \
	84	defined(CONFIG_SPI_BOOT)
8a45b0ba	85	return BOOT_DEVICE_SPI;
c5e8885a BS	86	#endif
	87	return BOOT_DEVICE_NONE;
	88	}
bb0c63a5	89	#endif