lpc32xx: add lpc32xx-spl.bin boot image target

Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>

1 files changed, 178 insertions, 0 deletions

diff --git a/tools/lpc32xximage.c b/tools/lpc32xximage.c
new file mode 100644
index 0000000..6b3865f
--- /dev/null
+++ b/tools/lpc32xximage.c
@@ -0,0 +1,178 @@
+/*
+ * Image manipulator for LPC32XX SoCs
+ *
+ * (C) Copyright 2015  DENX Software Engineering GmbH
+ * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
+ *
+ * Derived from omapimage.c:
+ *
+ * (C) Copyright 2010
+ * Linaro LTD, www.linaro.org
+ * Author: John Rigby <john.rigby@linaro.org>
+ * Based on TI's signGP.c
+ *
+ * (C) Copyright 2009
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
+ *
+ * (C) Copyright 2008
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "imagetool.h"
+#include <compiler.h>
+#include <image.h>
+
+/*
+ * NAND page 0 boot header
+ */
+
+struct nand_page_0_boot_header {
+	uint32_t data[129];
+	uint32_t pad[383];
+};
+
+/*
+ * Default ICC (interface configuration data [sic]) if none specified
+ * in board config
+ */
+
+#ifndef LPC32XX_BOOT_ICR
+#define LPC32XX_BOOT_ICR 0x00000096
+#endif
+
+/*
+ * Default boot NAND page size if none specified in board config
+ */
+
+#ifndef LPC32XX_BOOT_NAND_PAGESIZE
+#define LPC32XX_BOOT_NAND_PAGESIZE 2048
+#endif
+
+/*
+ * Default boot NAND pages per sector if none specified in board config
+ */
+
+#ifndef LPC32XX_BOOT_NAND_PAGES_PER_SECTOR
+#define LPC32XX_BOOT_NAND_PAGES_PER_SECTOR 64
+#endif
+
+/*
+ * Maximum size for boot code is 56K unless defined in board config
+ */
+
+#ifndef LPC32XX_BOOT_CODESIZE
+#define LPC32XX_BOOT_CODESIZE (56*1024)
+#endif
+
+/* signature byte for a readable block */
+
+#define LPC32XX_BOOT_BLOCK_OK 0xaa
+
+static struct nand_page_0_boot_header lpc32xximage_header;
+
+static int lpc32xximage_check_image_types(uint8_t type)
+{
+	if (type == IH_TYPE_LPC32XXIMAGE)
+		return EXIT_SUCCESS;
+	return EXIT_FAILURE;
+}
+
+static int lpc32xximage_verify_header(unsigned char *ptr, int image_size,
+			struct image_tool_params *params)
+{
+	struct nand_page_0_boot_header *hdr =
+		(struct nand_page_0_boot_header *)ptr;
+
+	/* turn image size from bytes to NAND pages, page 0 included */
+	int image_size_in_pages = ((image_size - 1)
+				  / LPC32XX_BOOT_NAND_PAGESIZE);
+
+	if (hdr->data[0] != (0xff & LPC32XX_BOOT_ICR))
+		return -1;
+	if (hdr->data[1] != (0xff & ~LPC32XX_BOOT_ICR))
+		return -1;
+	if (hdr->data[2] != (0xff & LPC32XX_BOOT_ICR))
+		return -1;
+	if (hdr->data[3] != (0xff & ~LPC32XX_BOOT_ICR))
+		return -1;
+	if (hdr->data[4] != (0xff & image_size_in_pages))
+		return -1;
+	if (hdr->data[5] != (0xff & ~image_size_in_pages))
+		return -1;
+	if (hdr->data[6] != (0xff & image_size_in_pages))
+		return -1;
+	if (hdr->data[7] != (0xff & ~image_size_in_pages))
+		return -1;
+	if (hdr->data[8] != (0xff & image_size_in_pages))
+		return -1;
+	if (hdr->data[9] != (0xff & ~image_size_in_pages))
+		return -1;
+	if (hdr->data[10] != (0xff & image_size_in_pages))
+		return -1;
+	if (hdr->data[11] != (0xff & ~image_size_in_pages))
+		return -1;
+	if (hdr->data[12] != LPC32XX_BOOT_BLOCK_OK)
+		return -1;
+	if (hdr->data[128] != LPC32XX_BOOT_BLOCK_OK)
+		return -1;
+	return 0;
+}
+
+static void print_hdr_byte(struct nand_page_0_boot_header *hdr, int ofs)
+{
+	printf("header[%d] = %02x\n", ofs, hdr->data[ofs]);
+}
+
+static void lpc32xximage_print_header(const void *ptr)
+{
+	struct nand_page_0_boot_header *hdr =
+		(struct nand_page_0_boot_header *)ptr;
+	int ofs;
+
+	for (ofs = 0; ofs <= 12; ofs++)
+		print_hdr_byte(hdr, ofs);
+	print_hdr_byte(hdr, 128);
+}
+
+static void lpc32xximage_set_header(void *ptr, struct stat *sbuf, int ifd,
+				struct image_tool_params *params)
+{
+	struct nand_page_0_boot_header *hdr =
+		(struct nand_page_0_boot_header *)ptr;
+
+	/* turn image size from bytes to NAND pages, page 0 included */
+	int image_size_in_pages = ((sbuf->st_size
+				  + LPC32XX_BOOT_NAND_PAGESIZE - 1)
+				  / LPC32XX_BOOT_NAND_PAGESIZE);
+
+	/* fill header -- default byte value is 0x00, not 0xFF */
+	memset((void *)hdr, 0, sizeof(*hdr));
+	hdr->data[0] = (hdr->data[2] = 0xff & LPC32XX_BOOT_ICR);
+	hdr->data[1] = (hdr->data[3] = 0xff & ~LPC32XX_BOOT_ICR);
+	hdr->data[4] = (hdr->data[6] = (hdr->data[8]
+		       = (hdr->data[10] = 0xff & image_size_in_pages)));
+	hdr->data[5] = (hdr->data[7] = (hdr->data[9]
+		       = (hdr->data[11] = 0xff & ~image_size_in_pages)));
+	hdr->data[12] = (hdr->data[128] = LPC32XX_BOOT_BLOCK_OK);
+}
+
+/*
+ * lpc32xximage parameters
+ */
+U_BOOT_IMAGE_TYPE(
+	lpc32xximage,
+	"LPC32XX Boot Image",
+	sizeof(lpc32xximage_header),
+	(void *)&lpc32xximage_header,
+	NULL,
+	lpc32xximage_verify_header,
+	lpc32xximage_print_header,
+	lpc32xximage_set_header,
+	NULL,
+	lpc32xximage_check_image_types,
+	NULL,
+	NULL
+);