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72 lines
2.1 KiB
72 lines
2.1 KiB
/* |
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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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