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