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https://git.code.sf.net/p/openocd/code
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382148e4dd
With the old checkpatch we cannot use the correct format for the SPDX tags in the file .c, in fact the C99 comments are not allowed and we had to use the block comment. With the new checkpatch, let's switch to the correct SPDX format. Change created automatically through the command: sed -i \ 's,^/\* *\(SPDX-License-Identifier: .*[^ ]\) *\*/$,// \1,' \ $(find src/ contrib/ -name \*.c) Change-Id: I6da16506baa7af718947562505dd49606d124171 Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: https://review.openocd.org/c/openocd/+/7153 Tested-by: jenkins
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/***************************************************************************
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* Copyright (C) 2007 by Pavel Chromy *
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* chromy@asix.cz *
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***************************************************************************/
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#include "platform.h"
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#include <flash/nor/ocl.h>
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#include "dcc.h"
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#include "samflash.h"
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#define BUFSIZE 1024 /* words, i.e. 4 KiB */
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uint32 buffer[1024];
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void cmd_flash(uint32 cmd)
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{
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unsigned int len;
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uint32 adr;
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uint32 chksum;
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unsigned int bi; /* buffer index */
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unsigned int bi_start; /* receive start mark */
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unsigned int bi_end; /* receive end mark */
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unsigned int ofs;
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int pagenum;
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int result;
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adr = dcc_rd();
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len = cmd&0xffff;
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ofs = adr%flash_page_size;
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bi_start = ofs/4;
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bi_end = (ofs + len + 3)/4;
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if (bi_end > BUFSIZE) {
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dcc_wr(OCL_BUFF_OVER);
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return;
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}
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chksum = OCL_CHKS_INIT;
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for (bi = 0; bi < bi_end; bi++) chksum^=buffer[bi]=dcc_rd();
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if (dcc_rd() != chksum) {
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dcc_wr(OCL_CHKS_FAIL);
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return;
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}
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/* fill in unused positions with unprogrammed values */
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for (bi = 0; bi < bi_start; bi++) buffer[bi]=0xffffffff;
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for (bi = bi_end; bi%flash_page_size; bi++) buffer[bi]=0xffffffff;
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result = 0;
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pagenum = adr/flash_page_size;
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for (bi = 0; bi < bi_end; bi += flash_page_size/4) {
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result = flash_page_program(buffer + bi, pagenum++);
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if (result) break;
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}
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/* verify written data */
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if (!result) result = flash_verify(adr, len, ((uint8 *)buffer) + ofs);
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dcc_wr(OCL_CMD_DONE | result);
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}
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int main (void)
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{
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uint32 cmd;
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for (;;) {
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cmd = dcc_rd();
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switch (cmd&OCL_CMD_MASK) {
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case OCL_PROBE:
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dcc_wr(OCL_CMD_DONE | flash_init());
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dcc_wr(0x100000); /* base */
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dcc_wr(flash_page_count*flash_page_size); /* size */
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dcc_wr(1); /* num_sectors */
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dcc_wr(4096 | ((unsigned long) flash_page_size << 16)); /* buflen and bufalign */
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break;
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case OCL_ERASE_ALL:
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dcc_wr(OCL_CMD_DONE | flash_erase_all());
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break;
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case OCL_FLASH_BLOCK:
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cmd_flash(cmd);
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break;
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default:
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/* unknown command */
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dcc_wr(OCL_CMD_ERR);
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break;
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}
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}
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return 0; /* we shall never get here, just to suppress compiler warning */
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}
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