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/*
* See file CREDITS for list of people who contributed to this
* project.
*
* Copyright (c) 2010 WonderMedia Technologies, Inc.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* WonderMedia Technologies, Inc.
* 10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
*/
/* For UBOOT */
#include <common.h>
#include "spi_flash.h"
int spi_flash_wmt_protect(flash_info_t *info, long sector, int prot)
{
int rc = 0, value;
char *key = NULL;
/*key = getenv("wmt.rsa.pem");
if (!key) {
return 1;
}*/
printf("real ");
if (prot) {
/* lock sf */
if (sector == 0) {
spi_flash_read_status(0, &value);
if ((value&0x9C) != 0x9C)
rc = spi_flash_write_status(0, 0x9C);
else
printf("chip 0 already lock\n");
} else {
spi_flash_read_status(1, &value);
if ((value&0x9C) != 0x9C)
rc = spi_flash_write_status(1, 0x9C);
else
printf("chip 1 already lock\n");
}
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0xDF) &= ~0x4; /*gpio31 gpio out data*/
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0x9F) |= 0x4; /*gpio31 enable out enable*/
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0x5F) |= 0x4; /*gpio31 enable gpio mode*/
/* printf("SF protect sec %d\n", sector); */
} else {
/* unlock sf */
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0xDF) |= 0x4; /*gpio31 gpio out data*/
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0x9F) |= 0x4; /*gpio31 enable out enable*/
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0x5F) |= 0x4; /*gpio31 enable gpio mode*/
if (sector == 0) {
spi_flash_read_status(0, &value);
if ((value&0x9C) != 0)
rc = spi_flash_write_status(0, 0);
else
printf("chip 0 already unlock\n");
} else {
spi_flash_read_status(1, &value);
if ((value&0x9C) != 0)
rc = spi_flash_write_status(1, 0);
else
printf("chip 1 already unlock\n");
}
if (rc) {
*(volatile unsigned char *)(GPIO_BASE_ADDR + 0xDF) &= ~0x4; /*gpio31 gpio pull-high*/
/* printf("SF unprotect fail\n", sector);*/
}
}
return rc;
}
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