[u-boot.git] / arch / arm / mach-imx / spl.c

/*
 * Copyright (C) 2014 Gateworks Corporation
 * Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
 *
 * Author: Tim Harvey <tharvey@gateworks.com>
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/spl.h>
#include <spl.h>
#include <asm/mach-imx/hab.h>

#if defined(CONFIG_MX6)
/* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
u32 spl_boot_device(void)
{
	unsigned int bmode = readl(&src_base->sbmr2);
	u32 reg = imx6_src_get_boot_mode();

	/*
	 * Check for BMODE if serial downloader is enabled
	 * BOOT_MODE - see IMX6DQRM Table 8-1
	 */
	if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
		return BOOT_DEVICE_BOARD;

	/* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
	switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
	 /* EIM: See 8.5.1, Table 8-9 */
	case IMX6_BMODE_EMI:
		/* BOOT_CFG1[3]: NOR/OneNAND Selection */
		switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) {
		case IMX6_BMODE_ONENAND:
			return BOOT_DEVICE_ONENAND;
		case IMX6_BMODE_NOR:
			return BOOT_DEVICE_NOR;
		break;
		}
	/* Reserved: Used to force Serial Downloader */
	case IMX6_BMODE_RESERVED:
		return BOOT_DEVICE_BOARD;
	/* SATA: See 8.5.4, Table 8-20 */
#if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL)
	case IMX6_BMODE_SATA:
		return BOOT_DEVICE_SATA;
#endif
	/* Serial ROM: See 8.5.5.1, Table 8-22 */
	case IMX6_BMODE_SERIAL_ROM:
		/* BOOT_CFG4[2:0] */
		switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
			IMX6_BMODE_SERIAL_ROM_SHIFT) {
		case IMX6_BMODE_ECSPI1:
		case IMX6_BMODE_ECSPI2:
		case IMX6_BMODE_ECSPI3:
		case IMX6_BMODE_ECSPI4:
		case IMX6_BMODE_ECSPI5:
			return BOOT_DEVICE_SPI;
		case IMX6_BMODE_I2C1:
		case IMX6_BMODE_I2C2:
		case IMX6_BMODE_I2C3:
			return BOOT_DEVICE_I2C;
		}
		break;
	/* SD/eSD: 8.5.3, Table 8-15  */
	case IMX6_BMODE_SD:
	case IMX6_BMODE_ESD:
		return BOOT_DEVICE_MMC1;
	/* MMC/eMMC: 8.5.3 */
	case IMX6_BMODE_MMC:
	case IMX6_BMODE_EMMC:
		return BOOT_DEVICE_MMC1;
	/* NAND Flash: 8.5.2, Table 8-10 */
	case IMX6_BMODE_NAND:
		return BOOT_DEVICE_NAND;
	}
	return BOOT_DEVICE_NONE;
}
#endif

#if defined(CONFIG_SPL_MMC_SUPPORT)
/* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
u32 spl_boot_mode(const u32 boot_device)
{
	switch (spl_boot_device()) {
	/* for MMC return either RAW or FAT mode */
	case BOOT_DEVICE_MMC1:
	case BOOT_DEVICE_MMC2:
#if defined(CONFIG_SPL_FAT_SUPPORT)
		return MMCSD_MODE_FS;
#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
		return MMCSD_MODE_EMMCBOOT;
#else
		return MMCSD_MODE_RAW;
#endif
		break;
	default:
		puts("spl: ERROR:  unsupported device\n");
		hang();
	}
}
#endif

#if defined(CONFIG_SECURE_BOOT)

__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
{
	typedef void __noreturn (*image_entry_noargs_t)(void);

	image_entry_noargs_t image_entry =
		(image_entry_noargs_t)(unsigned long)spl_image->entry_point;

	debug("image entry point: 0x%lX\n", spl_image->entry_point);

	/* HAB looks for the CSF at the end of the authenticated data therefore,
	 * we need to subtract the size of the CSF from the actual filesize */
	if (authenticate_image(spl_image->load_addr,
			       spl_image->size - CONFIG_CSF_SIZE)) {
		image_entry();
	} else {
		puts("spl: ERROR:  image authentication unsuccessful\n");
		hang();
	}
}

#endif
Commit	Line	Data
887717db TH	1	/*
	2	* Copyright (C) 2014 Gateworks Corporation
	3	* Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
	4	*
	5	* Author: Tim Harvey <tharvey@gateworks.com>
	6	*
	7	* SPDX-License-Identifier: GPL-2.0+
	8	*/
	9
	10	#include <common.h>
	11	#include <asm/io.h>
	12	#include <asm/arch/imx-regs.h>
cba586b4	13	#include <asm/arch/sys_proto.h>
887717db TH	14	#include <asm/spl.h>
887717db TH	15	#include <spl.h>
552a848e	16	#include <asm/mach-imx/hab.h>
887717db TH	17
887717db TH	18	#if defined(CONFIG_MX6)
f2863ff3	19	/* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
887717db TH	20	u32 spl_boot_device(void)
887717db TH	21	{
7b54f5a8	22	unsigned int bmode = readl(&src_base->sbmr2);
cba586b4	23	u32 reg = imx6_src_get_boot_mode();
887717db	24
40f4839c SB	25	/*
	26	* Check for BMODE if serial downloader is enabled
	27	* BOOT_MODE - see IMX6DQRM Table 8-1
	28	*/
ac0a93fd	29	if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
962c78b1	30	return BOOT_DEVICE_BOARD;
96aac843	31
887717db	32	/* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
96aac843	33	switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
887717db	34	/* EIM: See 8.5.1, Table 8-9 */
96aac843	35	case IMX6_BMODE_EMI:
887717db	36	/* BOOT_CFG1[3]: NOR/OneNAND Selection */
96aac843 JT	37	switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) {
96aac843 JT	38	case IMX6_BMODE_ONENAND:
887717db	39	return BOOT_DEVICE_ONENAND;
96aac843	40	case IMX6_BMODE_NOR:
887717db TH	41	return BOOT_DEVICE_NOR;
887717db TH	42	break;
96aac843	43	}
ac0a93fd	44	/* Reserved: Used to force Serial Downloader */
3bd1642d	45	case IMX6_BMODE_RESERVED:
962c78b1	46	return BOOT_DEVICE_BOARD;
887717db	47	/* SATA: See 8.5.4, Table 8-20 */
624da53c	48	#if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL)
96aac843	49	case IMX6_BMODE_SATA:
887717db	50	return BOOT_DEVICE_SATA;
624da53c	51	#endif
887717db	52	/* Serial ROM: See 8.5.5.1, Table 8-22 */
96aac843	53	case IMX6_BMODE_SERIAL_ROM:
887717db	54	/* BOOT_CFG4[2:0] */
96aac843 JT	55	switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
	56	IMX6_BMODE_SERIAL_ROM_SHIFT) {
	57	case IMX6_BMODE_ECSPI1:
	58	case IMX6_BMODE_ECSPI2:
	59	case IMX6_BMODE_ECSPI3:
	60	case IMX6_BMODE_ECSPI4:
	61	case IMX6_BMODE_ECSPI5:
887717db	62	return BOOT_DEVICE_SPI;
96aac843 JT	63	case IMX6_BMODE_I2C1:
	64	case IMX6_BMODE_I2C2:
	65	case IMX6_BMODE_I2C3:
887717db TH	66	return BOOT_DEVICE_I2C;
	67	}
	68	break;
	69	/* SD/eSD: 8.5.3, Table 8-15 */
96aac843 JT	70	case IMX6_BMODE_SD:
96aac843 JT	71	case IMX6_BMODE_ESD:
51efabac	72	return BOOT_DEVICE_MMC1;
887717db	73	/* MMC/eMMC: 8.5.3 */
96aac843 JT	74	case IMX6_BMODE_MMC:
96aac843 JT	75	case IMX6_BMODE_EMMC:
887717db	76	return BOOT_DEVICE_MMC1;
20f14714	77	/* NAND Flash: 8.5.2, Table 8-10 */
96aac843	78	case IMX6_BMODE_NAND:
887717db TH	79	return BOOT_DEVICE_NAND;
	80	}
	81	return BOOT_DEVICE_NONE;
	82	}
	83	#endif
	84
	85	#if defined(CONFIG_SPL_MMC_SUPPORT)
	86	/* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
2b1cdafa	87	u32 spl_boot_mode(const u32 boot_device)
887717db TH	88	{
	89	switch (spl_boot_device()) {
	90	/* for MMC return either RAW or FAT mode */
	91	case BOOT_DEVICE_MMC1:
	92	case BOOT_DEVICE_MMC2:
248802d4	93	#if defined(CONFIG_SPL_FAT_SUPPORT)
205b4f33	94	return MMCSD_MODE_FS;
248802d4 PA	95	#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
248802d4 PA	96	return MMCSD_MODE_EMMCBOOT;
887717db TH	97	#else
	98	return MMCSD_MODE_RAW;
	99	#endif
	100	break;
	101	default:
	102	puts("spl: ERROR: unsupported device\n");
	103	hang();
	104	}
	105	}
	106	#endif
15b505b0 SE	107
	108	#if defined(CONFIG_SECURE_BOOT)
	109
	110	__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
	111	{
	112	typedef void __noreturn (*image_entry_noargs_t)(void);
	113
	114	image_entry_noargs_t image_entry =
	115	(image_entry_noargs_t)(unsigned long)spl_image->entry_point;
	116
4386feb7	117	debug("image entry point: 0x%lX\n", spl_image->entry_point);
15b505b0 SE	118
	119	/* HAB looks for the CSF at the end of the authenticated data therefore,
	120	* we need to subtract the size of the CSF from the actual filesize */
	121	if (authenticate_image(spl_image->load_addr,
	122	spl_image->size - CONFIG_CSF_SIZE)) {
	123	image_entry();
	124	} else {
	125	puts("spl: ERROR: image authentication unsuccessful\n");
	126	hang();
	127	}
	128	}
	129
	130	#endif