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// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
/*
* Copyright (C) 2023, STMicroelectronics - All Rights Reserved
*/
#include <dfu.h>
#include <dm.h>
#include <misc.h>
#include <asm/arch/stm32prog.h>
#include <power/stpmic1.h>
static int dfu_otp_read(u64 offset, u8 *buffer, long *size)
{
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_DRIVER_GET(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_read(dev, offset + STM32_BSEC_OTP_OFFSET, buffer, *size);
if (ret >= 0) {
*size = ret;
ret = 0;
}
return 0;
}
static int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
{
int ret;
struct udevice *dev;
if (!IS_ENABLED(CONFIG_PMIC_STPMIC1)) {
log_err("PMIC update not supported");
return -EOPNOTSUPP;
}
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_DRIVER_GET(stpmic1_nvm),
&dev);
if (ret)
return ret;
ret = misc_read(dev, 0xF8 + offset, buffer, *size);
if (ret >= 0) {
*size = ret;
ret = 0;
}
if (ret == -EACCES) {
*size = 0;
ret = 0;
}
return ret;
}
int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
switch (dfu->data.virt.dev_num) {
case 0x0:
return dfu_otp_read(offset, buf, len);
case 0x1:
return dfu_pmic_read(offset, buf, len);
}
if (IS_ENABLED(CONFIG_CMD_STM32PROG_USB) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_read_medium_virt(dfu, offset, buf, len);
*len = 0;
return 0;
}
int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
if (IS_ENABLED(CONFIG_CMD_STM32PROG_USB) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_write_medium_virt(dfu, offset, buf, len);
return -EOPNOTSUPP;
}
int dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
{
if (IS_ENABLED(CONFIG_CMD_STM32PROG_USB) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_get_medium_size_virt(dfu, size);
*size = SZ_1K;
return 0;
}
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