diff options
Diffstat (limited to 'src/flash/ocl/at91sam7x/main.c')
| -rw-r--r-- | src/flash/ocl/at91sam7x/main.c | 214 |
1 files changed, 107 insertions, 107 deletions
diff --git a/src/flash/ocl/at91sam7x/main.c b/src/flash/ocl/at91sam7x/main.c index c9e93ddb..2a4d28bb 100644 --- a/src/flash/ocl/at91sam7x/main.c +++ b/src/flash/ocl/at91sam7x/main.c @@ -1,107 +1,107 @@ -/***************************************************************************
- * Copyright (C) 2007 by Pavel Chromy *
- * chromy@asix.cz *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#include "platform.h"
-
-#include "ocl.h"
-#include "dcc.h"
-#include "samflash.h"
-
-
-#define BUFSIZE 1024 /* words, i.e. 4 KiB */
-uint32 buffer[1024];
-
-void cmd_flash(uint32 cmd)
-{
- unsigned int len;
- uint32 adr;
- uint32 chksum;
- unsigned int bi; /* buffer index */
- unsigned int bi_start; /* receive start mark */
- unsigned int bi_end; /* receive end mark */
- unsigned int ofs;
- int pagenum;
- int result;
-
- adr=dcc_rd();
- len=cmd&0xffff;
- ofs=adr%flash_page_size;
- bi_start=ofs/4;
- bi_end=(ofs+len+3)/4;
-
- if (bi_end>BUFSIZE) {
- dcc_wr(OCL_BUFF_OVER);
- return;
- }
-
- chksum=OCL_CHKS_INIT;
- for (bi=0; bi<bi_end; bi++) chksum^=buffer[bi]=dcc_rd();
-
- if (dcc_rd()!=chksum) {
- dcc_wr(OCL_CHKS_FAIL);
- return;
- }
-
- /* fill in unused positions with unprogrammed values */
- for (bi=0; bi<bi_start; bi++) buffer[bi]=0xffffffff;
- for (bi=bi_end; bi%flash_page_size; bi++) buffer[bi]=0xffffffff;
-
- result=0;
- pagenum=adr/flash_page_size;
- for (bi=0; bi<bi_end; bi+=flash_page_size/4) {
- result=flash_page_program(buffer+bi, pagenum++);
- if (result) break;
- }
-
- /* verify written data */
- if (!result) result=flash_verify(adr, len, ((uint8 *)buffer)+ofs);
-
- dcc_wr(OCL_CMD_DONE|result);
-}
-
-
-int main (void)
-{
- uint32 cmd;
-
- for (;;) {
- cmd=dcc_rd();
- switch (cmd&OCL_CMD_MASK) {
- case OCL_PROBE:
- dcc_wr(OCL_CMD_DONE|flash_init());
- dcc_wr(0x100000); /* base */
- dcc_wr(flash_page_count*flash_page_size); /* size */
- dcc_wr(1); /* num_sectors */
- dcc_wr(4096 | ((unsigned long) flash_page_size<<16)); /* buflen and bufalign */
- break;
- case OCL_ERASE_ALL:
- dcc_wr(OCL_CMD_DONE|flash_erase_all());
- break;
- case OCL_FLASH_BLOCK:
- cmd_flash(cmd);
- break;
- default:
- /* unknown command */
- dcc_wr(OCL_CMD_ERR);
- break;
- }
- }
-
- return(0); /* we shall never get here, just to supress compiler warning */
-}
+/*************************************************************************** + * Copyright (C) 2007 by Pavel Chromy * + * chromy@asix.cz * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#include "platform.h" + +#include "ocl.h" +#include "dcc.h" +#include "samflash.h" + + +#define BUFSIZE 1024 /* words, i.e. 4 KiB */ +uint32 buffer[1024]; + +void cmd_flash(uint32 cmd) +{ + unsigned int len; + uint32 adr; + uint32 chksum; + unsigned int bi; /* buffer index */ + unsigned int bi_start; /* receive start mark */ + unsigned int bi_end; /* receive end mark */ + unsigned int ofs; + int pagenum; + int result; + + adr=dcc_rd(); + len=cmd&0xffff; + ofs=adr%flash_page_size; + bi_start=ofs/4; + bi_end=(ofs+len+3)/4; + + if (bi_end>BUFSIZE) { + dcc_wr(OCL_BUFF_OVER); + return; + } + + chksum=OCL_CHKS_INIT; + for (bi=0; bi<bi_end; bi++) chksum^=buffer[bi]=dcc_rd(); + + if (dcc_rd()!=chksum) { + dcc_wr(OCL_CHKS_FAIL); + return; + } + + /* fill in unused positions with unprogrammed values */ + for (bi=0; bi<bi_start; bi++) buffer[bi]=0xffffffff; + for (bi=bi_end; bi%flash_page_size; bi++) buffer[bi]=0xffffffff; + + result=0; + pagenum=adr/flash_page_size; + for (bi=0; bi<bi_end; bi+=flash_page_size/4) { + result=flash_page_program(buffer+bi, pagenum++); + if (result) break; + } + + /* verify written data */ + if (!result) result=flash_verify(adr, len, ((uint8 *)buffer)+ofs); + + dcc_wr(OCL_CMD_DONE|result); +} + + +int main (void) +{ + uint32 cmd; + + for (;;) { + cmd=dcc_rd(); + switch (cmd&OCL_CMD_MASK) { + case OCL_PROBE: + dcc_wr(OCL_CMD_DONE|flash_init()); + dcc_wr(0x100000); /* base */ + dcc_wr(flash_page_count*flash_page_size); /* size */ + dcc_wr(1); /* num_sectors */ + dcc_wr(4096 | ((unsigned long) flash_page_size<<16)); /* buflen and bufalign */ + break; + case OCL_ERASE_ALL: + dcc_wr(OCL_CMD_DONE|flash_erase_all()); + break; + case OCL_FLASH_BLOCK: + cmd_flash(cmd); + break; + default: + /* unknown command */ + dcc_wr(OCL_CMD_ERR); + break; + } + } + + return(0); /* we shall never get here, just to supress compiler warning */ +} |