From 39f520bb62be67ef98303c47dd5c2d76861fea0f Mon Sep 17 00:00:00 2001 From: "Albert ARIBAUD \\(3ADEV\\)" Date: Tue, 31 Mar 2015 11:40:49 +0200 Subject: lpc32xx: add lpc32xx-spl.bin boot image target Signed-off-by: Albert ARIBAUD (3ADEV) --- tools/lpc32xximage.c | 178 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 178 insertions(+) create mode 100644 tools/lpc32xximage.c (limited to 'tools/lpc32xximage.c') 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 + * + * Derived from omapimage.c: + * + * (C) Copyright 2010 + * Linaro LTD, www.linaro.org + * Author: John Rigby + * Based on TI's signGP.c + * + * (C) Copyright 2009 + * Stefano Babic, DENX Software Engineering, sbabic@denx.de. + * + * (C) Copyright 2008 + * Marvell Semiconductor + * Written-by: Prafulla Wadaskar + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include "imagetool.h" +#include +#include + +/* + * 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 +); -- cgit v1.1