73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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/*
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* norboot.c - NOR boot mode functions
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*
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* Copyright (C) 2008 Hugo Villeneuve <hugo@hugovil.com>
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*
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* Based on TI DaVinci Flash and Boot Utilities, original copyright follows:
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* Copyright 2008 Texas Instruments, Inc. <www.ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "common.h"
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#include "nor.h"
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#include "util.h"
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#include "uart.h"
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extern NOR_INFO gNorInfo;
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/* Function to find out where the Application is and copy to DRAM */
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int
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nor_copy(uint32_t *jump_entry_point)
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{
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volatile struct nor_boot_t *hdr = 0;
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volatile uint32_t *appStartAddr = 0;
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volatile uint32_t count = 0;
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volatile uint32_t *ramPtr = 0;
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uint32_t blkSize, blkAddress;
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if (NOR_Init() != E_PASS)
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return E_FAIL;
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DiscoverBlockInfo((gNorInfo.flashBase + UBL_IMAGE_SIZE), &blkSize,
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&blkAddress);
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hdr = (volatile struct nor_boot_t *) (blkAddress + blkSize);
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/* Check for valid magic number. */
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if ((hdr->magicNum & 0xFFFFFF00) != MAGIC_NUMBER_VALID) {
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log_fail("No valid header found");
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return E_FAIL;
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}
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/* Set the source address for copy */
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appStartAddr = (uint32_t *)(((uint8_t*) hdr) + sizeof(struct nor_boot_t));
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if (hdr->magicNum == UBL_MAGIC_BIN_IMG) {
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log_fail("Unsupported image format");
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return E_FAIL;
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}
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ramPtr = (uint32_t *) hdr->ldAddress;
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/* Copy data to RAM */
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memcpy(ramPtr, appStartAddr, hdr->appSize);
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/* Application was read correctly, so set entrypoint */
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*jump_entry_point = hdr->entryPoint;
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return E_PASS;
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}
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