ARM: mxs: tools: Add mkimage support for MXS bootstream

Add mkimage support for generating and verifying MXS bootstream.
The implementation here is mostly a glue code between MXSSB v0.4
and mkimage, but the long-term goal is to rectify this and merge
MXSSB with mkimage more tightly. Once this code is properly in
U-Boot, MXSSB shall be deprecated in favor of mkimage-mxsimage
support.

Note that the mxsimage generator needs libcrypto from OpenSSL, I
therefore enabled the libcrypto/libssl unconditionally.

MXSSB: http://git.denx.de/?p=mxssb.git;a=summary

The code is based on research presented at:
http://www.rockbox.org/wiki/SbFileFormat

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>

1 files changed, 230 insertions, 0 deletions

diff --git a/tools/mxsimage.h b/tools/mxsimage.h
new file mode 100644
index 0000000..6cd59d2
--- /dev/null
+++ b/tools/mxsimage.h
@@ -0,0 +1,230 @@
+/*
+ * Freescale i.MX28 SB image generator
+ *
+ * Copyright (C) 2012 Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __MXSSB_H__
+#define __MXSSB_H__
+
+#include <stdint.h>
+#include <arpa/inet.h>
+
+#define SB_BLOCK_SIZE		16
+
+#define roundup(x, y)		((((x) + ((y) - 1)) / (y)) * (y))
+#define ARRAY_SIZE(x)		(sizeof(x) / sizeof((x)[0]))
+
+struct sb_boot_image_version {
+	uint16_t	major;
+	uint16_t	pad0;
+	uint16_t	minor;
+	uint16_t	pad1;
+	uint16_t	revision;
+	uint16_t	pad2;
+};
+
+struct sb_boot_image_header {
+	union {
+		/* SHA1 of the header. */
+		uint8_t	digest[20];
+		struct {
+			/* CBC-MAC initialization vector. */
+			uint8_t iv[16];
+			uint8_t extra[4];
+		};
+	};
+	/* 'STMP' */
+	uint8_t		signature1[4];
+	/* Major version of the image format. */
+	uint8_t		major_version;
+	/* Minor version of the image format. */
+	uint8_t		minor_version;
+	/* Flags associated with the image. */
+	uint16_t	flags;
+	/* Size of the image in 16b blocks. */
+	uint32_t	image_blocks;
+	/* Offset of the first tag in 16b blocks. */
+	uint32_t	first_boot_tag_block;
+	/* ID of the section to boot from. */
+	uint32_t	first_boot_section_id;
+	/* Amount of crypto keys. */
+	uint16_t	key_count;
+	/* Offset to the key dictionary in 16b blocks. */
+	uint16_t	key_dictionary_block;
+	/* Size of this header in 16b blocks. */
+	uint16_t	header_blocks;
+	/* Amount of section headers. */
+	uint16_t	section_count;
+	/* Section header size in 16b blocks. */
+	uint16_t	section_header_size;
+	/* Padding to align timestamp to uint64_t. */
+	uint8_t		padding0[2];
+	/* 'sgtl' (since v1.1) */
+	uint8_t		signature2[4];
+	/* Image generation date, in microseconds since 1.1.2000 . */
+	uint64_t	timestamp_us;
+	/* Product version. */
+	struct sb_boot_image_version
+			product_version;
+	/* Component version. */
+	struct sb_boot_image_version
+			component_version;
+	/* Drive tag for the system drive. (since v1.1) */
+	uint16_t	drive_tag;
+	/* Padding. */
+	uint8_t		padding1[6];
+};
+
+#define	SB_VERSION_MAJOR	1
+#define	SB_VERSION_MINOR	1
+
+/* Enable to HTLLC verbose boot report. */
+#define SB_IMAGE_FLAG_VERBOSE	(1 << 0)
+
+struct sb_key_dictionary_key {
+	/* The CBC-MAC of image and sections header. */
+	uint8_t		cbc_mac[SB_BLOCK_SIZE];
+	/* The AES key encrypted by image key (zero). */
+	uint8_t		key[SB_BLOCK_SIZE];
+};
+
+struct sb_ivt_header {
+	uint32_t	header;
+	uint32_t	entry;
+	uint32_t	reserved1;
+	uint32_t	dcd;
+	uint32_t	boot_data;
+	uint32_t	self;
+	uint32_t	csf;
+	uint32_t	reserved2;
+};
+
+#define	SB_HAB_IVT_TAG			0xd1UL
+#define	SB_HAB_DCD_TAG			0xd2UL
+
+#define	SB_HAB_VERSION			0x40UL
+
+/*
+ * The "size" field in the IVT header is not naturally aligned,
+ * use this macro to fill first 4 bytes of the IVT header without
+ * causing issues on some systems (esp. M68k, PPC, MIPS-BE, ARM-BE).
+ */
+static inline uint32_t sb_hab_ivt_header(void)
+{
+	uint32_t ret = 0;
+	ret |= SB_HAB_IVT_TAG << 24;
+	ret |= sizeof(struct sb_ivt_header) << 16;
+	ret |= SB_HAB_VERSION;
+	return htonl(ret);
+}
+
+struct sb_sections_header {
+	/* Section number. */
+	uint32_t	section_number;
+	/* Offset of this sections first instruction after "TAG". */
+	uint32_t	section_offset;
+	/* Size of the section in 16b blocks. */
+	uint32_t	section_size;
+	/* Section flags. */
+	uint32_t	section_flags;
+};
+
+#define	SB_SECTION_FLAG_BOOTABLE	(1 << 0)
+
+struct sb_command {
+	struct {
+		uint8_t		checksum;
+		uint8_t		tag;
+		uint16_t	flags;
+#define ROM_TAG_CMD_FLAG_ROM_LAST_TAG	0x1
+#define ROM_LOAD_CMD_FLAG_DCD_LOAD	0x1	/* MX28 only */
+#define ROM_JUMP_CMD_FLAG_HAB		0x1	/* MX28 only */
+#define ROM_CALL_CMD_FLAG_HAB		0x1	/* MX28 only */
+	} header;
+
+	union {
+	struct {
+		uint32_t	reserved[3];
+	} nop;
+	struct {
+		uint32_t	section_number;
+		uint32_t	section_length;
+		uint32_t	section_flags;
+	} tag;
+	struct {
+		uint32_t	address;
+		uint32_t	count;
+		uint32_t	crc32;
+	} load;
+	struct {
+		uint32_t	address;
+		uint32_t	count;
+		uint32_t	pattern;
+	} fill;
+	struct {
+		uint32_t	address;
+		uint32_t	reserved;
+		/* Passed in register r0 before JUMP */
+		uint32_t	argument;
+	} jump;
+	struct {
+		uint32_t	address;
+		uint32_t	reserved;
+		/* Passed in register r0 before CALL */
+		uint32_t	argument;
+	} call;
+	struct {
+		uint32_t	reserved1;
+		uint32_t	reserved2;
+		uint32_t	mode;
+	} mode;
+
+	};
+};
+
+/*
+ * Most of the mode names are same or at least similar
+ * on i.MX23 and i.MX28, but some of the mode names
+ * differ. The "name" field represents the mode name
+ * on i.MX28 as seen in Table 12-2 of the datasheet.
+ * The "altname" field represents the differently named
+ * fields on i.MX23 as seen in Table 35-3 of the
+ * datasheet.
+ */
+static const struct {
+	const char	*name;
+	const char	*altname;
+	const uint8_t	mode;
+} modetable[] = {
+	{ "USB",		NULL,		0x00 },
+	{ "I2C",		NULL,		0x01 },
+	{ "SPI2_FLASH",		"SPI1_FLASH",	0x02 },
+	{ "SPI3_FLASH",		"SPI2_FLASH",	0x03 },
+	{ "NAND_BCH",		NULL,		0x04 },
+	{ "JTAG",		NULL,		0x06 },
+	{ "SPI3_EEPROM",	"SPI2_EEPROM",	0x08 },
+	{ "SD_SSP0",		NULL,		0x09 },
+	{ "SD_SSP1",		NULL,		0x0A }
+};
+
+enum sb_tag {
+	ROM_NOP_CMD	= 0x00,
+	ROM_TAG_CMD	= 0x01,
+	ROM_LOAD_CMD	= 0x02,
+	ROM_FILL_CMD	= 0x03,
+	ROM_JUMP_CMD	= 0x04,
+	ROM_CALL_CMD	= 0x05,
+	ROM_MODE_CMD	= 0x06
+};
+
+struct sb_source_entry {
+	uint8_t		tag;
+	uint32_t	address;
+	uint32_t	flags;
+	char		*filename;
+};
+
+#endif	/* __MXSSB_H__ */