Merge git://git.denx.de/u-boot-rockchip

8 files changed, 397 insertions, 11 deletions

diff --git a/tools/Makefile b/tools/Makefile
index f673258..9082bda 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -64,6 +64,8 @@ RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := $(addprefix lib/rsa/, \
 					rsa-sign.o rsa-verify.o rsa-checksum.o \
 					rsa-mod-exp.o)
 
+ROCKCHIP_OBS = lib/rc4.o rkcommon.o rkimage.o rksd.o
+
 # common objs for dumpimage and mkimage
 dumpimage-mkimage-objs := aisimage.o \
 			atmelimage.o \
@@ -90,6 +92,7 @@ dumpimage-mkimage-objs := aisimage.o \
 			os_support.o \
 			pblimage.o \
 			pbl_crc32.o \
+			$(ROCKCHIP_OBS) \
 			socfpgaimage.o \
 			lib/sha1.o \
 			lib/sha256.o \
diff --git a/tools/imagetool.h b/tools/imagetool.h
index 99bbf2f..ad2deb5 100644
--- a/tools/imagetool.h
+++ b/tools/imagetool.h
@@ -60,6 +60,7 @@ struct image_tool_params {
 	const char *comment;	/* Comment to add to signature node */
 	int require_keys;	/* 1 to mark signing keys as 'required' */
 	int file_size;		/* Total size of output file */
+	int orig_file_size;	/* Original size for file before padding */
 };
 
 /*
diff --git a/tools/mkimage.c b/tools/mkimage.c
index e81d455..c50af05 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -488,12 +488,6 @@ copy_file (int ifd, const char *datafile, int pad)
 	int size;
 	struct image_type_params *tparams = imagetool_get_type(params.type);
 
-	if (pad >= sizeof(zeros)) {
-		fprintf(stderr, "%s: Can't pad to %d\n",
-			params.cmdname, pad);
-		exit(EXIT_FAILURE);
-	}
-
 	memset(zeros, 0, sizeof(zeros));
 
 	if (params.vflag) {
@@ -563,11 +557,18 @@ copy_file (int ifd, const char *datafile, int pad)
 			exit (EXIT_FAILURE);
 		}
 	} else if (pad > 1) {
-		if (write(ifd, (char *)&zeros, pad) != pad) {
-			fprintf(stderr, "%s: Write error on %s: %s\n",
-				params.cmdname, params.imagefile,
-				strerror(errno));
-			exit(EXIT_FAILURE);
+		while (pad > 0) {
+			int todo = sizeof(zeros);
+
+			if (todo > pad)
+				todo = pad;
+			if (write(ifd, (char *)&zeros, todo) != todo) {
+				fprintf(stderr, "%s: Write error on %s: %s\n",
+					params.cmdname, params.imagefile,
+					strerror(errno));
+				exit(EXIT_FAILURE);
+			}
+			pad -= todo;
 		}
 	}
 
diff --git a/tools/rkcommon.c b/tools/rkcommon.c
new file mode 100644
index 0000000..4389622
--- /dev/null
+++ b/tools/rkcommon.c
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2015 Google,  Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Helper functions for Rockchip images
+ */
+
+#include "imagetool.h"
+#include <image.h>
+#include <rc4.h>
+#include "mkimage.h"
+#include "rkcommon.h"
+
+enum {
+	RK_SIGNATURE		= 0x0ff0aa55,
+};
+
+/**
+ * struct header0_info - header block for boot ROM
+ *
+ * This is stored at SD card block 64 (where each block is 512 bytes, or at
+ * the start of SPI flash. It is encoded with RC4.
+ *
+ * @signature:		Signature (must be RKSD_SIGNATURE)
+ * @disable_rc4:	0 to use rc4 for boot image,  1 to use plain binary
+ * @code1_offset:	Offset in blocks of the SPL code from this header
+ *			block. E.g. 4 means 2KB after the start of this header.
+ * Other fields are not used by U-Boot
+ */
+struct header0_info {
+	uint32_t signature;
+	uint8_t reserved[4];
+	uint32_t disable_rc4;
+	uint16_t code1_offset;
+	uint16_t code2_offset;
+	uint8_t reserved1[490];
+	uint16_t usflashdatasize;
+	uint16_t ucflashbootsize;
+	uint8_t reserved2[2];
+};
+
+static unsigned char rc4_key[16] = {
+	124, 78, 3, 4, 85, 5, 9, 7,
+	45, 44, 123, 56, 23, 13, 23, 17
+};
+
+int rkcommon_set_header(void *buf, uint file_size)
+{
+	struct header0_info *hdr;
+
+	if (file_size > RK_MAX_CODE1_SIZE)
+		return -ENOSPC;
+
+	memset(buf,  '\0', RK_CODE1_OFFSET * RK_BLK_SIZE);
+	hdr = (struct header0_info *)buf;
+	hdr->signature = RK_SIGNATURE;
+	hdr->disable_rc4 = 1;
+	hdr->code1_offset = RK_CODE1_OFFSET;
+	hdr->code2_offset = 8;
+
+	hdr->usflashdatasize = (file_size + RK_BLK_SIZE - 1) / RK_BLK_SIZE;
+	hdr->usflashdatasize = (hdr->usflashdatasize + 3) & ~3;
+	hdr->ucflashbootsize = hdr->usflashdatasize;
+
+	debug("size=%x, %x\n", params->file_size, hdr->usflashdatasize);
+
+	rc4_encode(buf, RK_BLK_SIZE, rc4_key);
+
+	return 0;
+}
diff --git a/tools/rkcommon.h b/tools/rkcommon.h
new file mode 100644
index 0000000..57fd726
--- /dev/null
+++ b/tools/rkcommon.h
@@ -0,0 +1,28 @@
+/*
+ * (C) Copyright 2015 Google,  Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _RKCOMMON_H
+#define _RKCOMMON_H
+
+enum {
+	RK_BLK_SIZE		= 512,
+	RK_CODE1_OFFSET		= 4,
+	RK_MAX_CODE1_SIZE	= 32 << 10,
+};
+
+/**
+ * rkcommon_set_header() - set up the header for a Rockchip boot image
+ *
+ * This sets up a 2KB header which can be interpreted by the Rockchip boot ROM.
+ *
+ * @buf:	Pointer to header place (must be at least 2KB in size)
+ * @file_size:	Size of the file we want the boot ROM to load, in bytes
+ * @return 0 if OK, -ENOSPC if too large
+ */
+int rkcommon_set_header(void *buf, uint file_size);
+
+#endif
diff --git a/tools/rkimage.c b/tools/rkimage.c
new file mode 100644
index 0000000..7b292f4
--- /dev/null
+++ b/tools/rkimage.c
@@ -0,0 +1,65 @@
+/*
+ * (C) Copyright 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * See README.rockchip for details of the rkimage format
+ */
+
+#include "imagetool.h"
+#include <image.h>
+
+static uint32_t header;
+
+static int rkimage_check_params(struct image_tool_params *params)
+{
+	return 0;
+}
+
+static int rkimage_verify_header(unsigned char *buf, int size,
+				 struct image_tool_params *params)
+{
+	return 0;
+}
+
+static void rkimage_print_header(const void *buf)
+{
+}
+
+static void rkimage_set_header(void *buf, struct stat *sbuf, int ifd,
+			       struct image_tool_params *params)
+{
+	memcpy(buf, "RK32", 4);
+}
+
+static int rkimage_extract_subimage(void *buf, struct image_tool_params *params)
+{
+	return 0;
+}
+
+static int rkimage_check_image_type(uint8_t type)
+{
+	if (type == IH_TYPE_RKIMAGE)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+/*
+ * rk_image parameters
+ */
+U_BOOT_IMAGE_TYPE(
+	rkimage,
+	"Rockchip Boot Image support",
+	4,
+	&header,
+	rkimage_check_params,
+	rkimage_verify_header,
+	rkimage_print_header,
+	rkimage_set_header,
+	rkimage_extract_subimage,
+	rkimage_check_image_type,
+	NULL,
+	NULL
+);
diff --git a/tools/rksd.c b/tools/rksd.c
new file mode 100644
index 0000000..a8dbe98
--- /dev/null
+++ b/tools/rksd.c
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright 2015 Google,  Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * See README.rockchip for details of the rksd format
+ */
+
+#include "imagetool.h"
+#include <image.h>
+#include <rc4.h>
+#include "mkimage.h"
+#include "rkcommon.h"
+
+enum {
+	RKSD_SPL_HDR_START	= RK_CODE1_OFFSET * RK_BLK_SIZE,
+	RKSD_SPL_START		= RKSD_SPL_HDR_START + 4,
+	RKSD_HEADER_LEN		= RKSD_SPL_START,
+};
+
+static char dummy_hdr[RKSD_HEADER_LEN];
+
+static int rksd_check_params(struct image_tool_params *params)
+{
+	return 0;
+}
+
+static int rksd_verify_header(unsigned char *buf,  int size,
+				 struct image_tool_params *params)
+{
+	return 0;
+}
+
+static void rksd_print_header(const void *buf)
+{
+}
+
+static void rksd_set_header(void *buf,  struct stat *sbuf,  int ifd,
+			       struct image_tool_params *params)
+{
+	unsigned int size;
+	int ret;
+
+	size = params->file_size - RKSD_SPL_HDR_START;
+	ret = rkcommon_set_header(buf, size);
+	if (ret) {
+		/* TODO(sjg@chromium.org): This method should return an error */
+		printf("Warning: SPL image is too large (size %#x) and will not boot\n",
+		       size);
+	}
+
+	memcpy(buf + RKSD_SPL_HDR_START, "RK32", 4);
+}
+
+static int rksd_extract_subimage(void *buf,  struct image_tool_params *params)
+{
+	return 0;
+}
+
+static int rksd_check_image_type(uint8_t type)
+{
+	if (type == IH_TYPE_RKSD)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+/* We pad the file out to a fixed size - this method returns that size */
+static int rksd_vrec_header(struct image_tool_params *params,
+			    struct image_type_params *tparams)
+{
+	int pad_size;
+
+	pad_size = RKSD_SPL_HDR_START + RK_MAX_CODE1_SIZE;
+	debug("pad_size %x\n", pad_size);
+
+	return pad_size - params->file_size;
+}
+
+/*
+ * rk_sd parameters
+ */
+U_BOOT_IMAGE_TYPE(
+	rksd,
+	"Rockchip SD Boot Image support",
+	RKSD_HEADER_LEN,
+	dummy_hdr,
+	rksd_check_params,
+	rksd_verify_header,
+	rksd_print_header,
+	rksd_set_header,
+	rksd_extract_subimage,
+	rksd_check_image_type,
+	NULL,
+	rksd_vrec_header
+);
diff --git a/tools/rkspi.c b/tools/rkspi.c
new file mode 100644
index 0000000..a3c4c73
--- /dev/null
+++ b/tools/rkspi.c
@@ -0,0 +1,119 @@
+/*
+ * (C) Copyright 2015 Google,  Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * See README.rockchip for details of the rkspi format
+ */
+
+#include "imagetool.h"
+#include <image.h>
+#include <rc4.h>
+#include "mkimage.h"
+#include "rkcommon.h"
+
+enum {
+	RKSPI_SPL_HDR_START	= RK_CODE1_OFFSET * RK_BLK_SIZE,
+	RKSPI_SPL_START		= RKSPI_SPL_HDR_START + 4,
+	RKSPI_HEADER_LEN	= RKSPI_SPL_START,
+	RKSPI_SECT_LEN		= RK_BLK_SIZE * 4,
+};
+
+static char dummy_hdr[RKSPI_HEADER_LEN];
+
+static int rkspi_check_params(struct image_tool_params *params)
+{
+	return 0;
+}
+
+static int rkspi_verify_header(unsigned char *buf, int size,
+			       struct image_tool_params *params)
+{
+	return 0;
+}
+
+static void rkspi_print_header(const void *buf)
+{
+}
+
+static void rkspi_set_header(void *buf, struct stat *sbuf, int ifd,
+			     struct image_tool_params *params)
+{
+	int sector;
+	unsigned int size;
+	int ret;
+
+	size = params->orig_file_size;
+	ret = rkcommon_set_header(buf, size);
+	debug("size %x\n", size);
+	if (ret) {
+		/* TODO(sjg@chromium.org): This method should return an error */
+		printf("Warning: SPL image is too large (size %#x) and will not boot\n",
+		       size);
+	}
+
+	memcpy(buf + RKSPI_SPL_HDR_START, "RK32", 4);
+
+	/*
+	 * Spread the image out so we only use the first 2KB of each 4KB
+	 * region. This is a feature of the SPI format required by the Rockchip
+	 * boot ROM. Its rationale is unknown.
+	 */
+	for (sector = size / RKSPI_SECT_LEN - 1; sector >= 0; sector--) {
+		printf("sector %u\n", sector);
+		memmove(buf + sector * RKSPI_SECT_LEN * 2,
+			buf + sector * RKSPI_SECT_LEN,
+			RKSPI_SECT_LEN);
+		memset(buf + sector * RKSPI_SECT_LEN * 2 + RKSPI_SECT_LEN,
+		       '\0', RKSPI_SECT_LEN);
+	}
+}
+
+static int rkspi_extract_subimage(void *buf, struct image_tool_params *params)
+{
+	return 0;
+}
+
+static int rkspi_check_image_type(uint8_t type)
+{
+	if (type == IH_TYPE_RKSPI)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+/* We pad the file out to a fixed size - this method returns that size */
+static int rkspi_vrec_header(struct image_tool_params *params,
+			     struct image_type_params *tparams)
+{
+	int pad_size;
+
+	pad_size = (RK_MAX_CODE1_SIZE + 0x7ff) / 0x800 * 0x800;
+	params->orig_file_size = pad_size;
+
+	/* We will double the image size due to the SPI format */
+	pad_size *= 2;
+	pad_size += RKSPI_SPL_HDR_START;
+	debug("pad_size %x\n", pad_size);
+
+	return pad_size - params->file_size;
+}
+
+/*
+ * rk_spi parameters
+ */
+U_BOOT_IMAGE_TYPE(
+	rkspi,
+	"Rockchip SPI Boot Image support",
+	RKSPI_HEADER_LEN,
+	dummy_hdr,
+	rkspi_check_params,
+	rkspi_verify_header,
+	rkspi_print_header,
+	rkspi_set_header,
+	rkspi_extract_subimage,
+	rkspi_check_image_type,
+	NULL,
+	rkspi_vrec_header
+);