[people/ms/u-boot.git] / arch / arm / imx-common / 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/imx-common/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_UART;

	/* 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_UART:
		return BOOT_DEVICE_UART;
	/* SATA: See 8.5.4, Table 8-20 */
	case IMX6_BMODE_SATA:
		return BOOT_DEVICE_SATA;
	/* 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>
15b505b0	16	#include <asm/imx-common/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 */
40f4839c	30	return BOOT_DEVICE_UART;
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 */
96aac843	45	case IMX6_BMODE_UART:
ac0a93fd	46	return BOOT_DEVICE_UART;
887717db	47	/* SATA: See 8.5.4, Table 8-20 */
96aac843	48	case IMX6_BMODE_SATA:
887717db TH	49	return BOOT_DEVICE_SATA;
887717db TH	50	/* Serial ROM: See 8.5.5.1, Table 8-22 */
96aac843	51	case IMX6_BMODE_SERIAL_ROM:
887717db	52	/* BOOT_CFG4[2:0] */
96aac843 JT	53	switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
	54	IMX6_BMODE_SERIAL_ROM_SHIFT) {
	55	case IMX6_BMODE_ECSPI1:
	56	case IMX6_BMODE_ECSPI2:
	57	case IMX6_BMODE_ECSPI3:
	58	case IMX6_BMODE_ECSPI4:
	59	case IMX6_BMODE_ECSPI5:
887717db	60	return BOOT_DEVICE_SPI;
96aac843 JT	61	case IMX6_BMODE_I2C1:
	62	case IMX6_BMODE_I2C2:
	63	case IMX6_BMODE_I2C3:
887717db TH	64	return BOOT_DEVICE_I2C;
	65	}
	66	break;
	67	/* SD/eSD: 8.5.3, Table 8-15 */
96aac843 JT	68	case IMX6_BMODE_SD:
96aac843 JT	69	case IMX6_BMODE_ESD:
51efabac	70	return BOOT_DEVICE_MMC1;
887717db	71	/* MMC/eMMC: 8.5.3 */
96aac843 JT	72	case IMX6_BMODE_MMC:
96aac843 JT	73	case IMX6_BMODE_EMMC:
887717db	74	return BOOT_DEVICE_MMC1;
20f14714	75	/* NAND Flash: 8.5.2, Table 8-10 */
96aac843	76	case IMX6_BMODE_NAND:
887717db TH	77	return BOOT_DEVICE_NAND;
	78	}
	79	return BOOT_DEVICE_NONE;
	80	}
	81	#endif
	82
	83	#if defined(CONFIG_SPL_MMC_SUPPORT)
	84	/* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
2b1cdafa	85	u32 spl_boot_mode(const u32 boot_device)
887717db TH	86	{
	87	switch (spl_boot_device()) {
	88	/* for MMC return either RAW or FAT mode */
	89	case BOOT_DEVICE_MMC1:
	90	case BOOT_DEVICE_MMC2:
248802d4	91	#if defined(CONFIG_SPL_FAT_SUPPORT)
205b4f33	92	return MMCSD_MODE_FS;
248802d4 PA	93	#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
248802d4 PA	94	return MMCSD_MODE_EMMCBOOT;
887717db TH	95	#else
	96	return MMCSD_MODE_RAW;
	97	#endif
	98	break;
	99	default:
	100	puts("spl: ERROR: unsupported device\n");
	101	hang();
	102	}
	103	}
	104	#endif
15b505b0 SE	105
	106	#if defined(CONFIG_SECURE_BOOT)
	107
	108	__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
	109	{
	110	typedef void __noreturn (*image_entry_noargs_t)(void);
	111
	112	image_entry_noargs_t image_entry =
	113	(image_entry_noargs_t)(unsigned long)spl_image->entry_point;
	114
4386feb7	115	debug("image entry point: 0x%lX\n", spl_image->entry_point);
15b505b0 SE	116
	117	/* HAB looks for the CSF at the end of the authenticated data therefore,
	118	* we need to subtract the size of the CSF from the actual filesize */
	119	if (authenticate_image(spl_image->load_addr,
	120	spl_image->size - CONFIG_CSF_SIZE)) {
	121	image_entry();
	122	} else {
	123	puts("spl: ERROR: image authentication unsuccessful\n");
	124	hang();
	125	}
	126	}
	127
	128	#endif