src/bsp/lk/target/auto2712m1v1-ivi/vefuse.c

/*
 * Copyright (c) 2017 MediaTek Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <debug.h>
#include <platform/mt_reg_base.h>
#include <reg.h>

#define GPIO127_DIR_SET    (GPIO_BASE + 0x074)
#define GPIO127_DOUT_SET    (GPIO_BASE + 0x374)
#define GPIO127_DOUT_RST    (GPIO_BASE + 0x378)

void enable_vefuse(void)
{
    /* set to output control and output register is 1 */
    writel((1U << 15), GPIO127_DIR_SET);
    writel((1U << 15), GPIO127_DOUT_SET);
    spin(10000);
}

void disable_vefuse(void)
{
    /* set to output control and output register is 0 */
    writel((1U << 15), GPIO127_DIR_SET);
    writel((1U << 15), GPIO127_DOUT_RST);
    spin(10000);
}