mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 06:00:43 +00:00
65e25bea59
In the spirit of using the same base name for all of these related macros, rename this to have the operation at the end. This is not widely used so the impact is fairly small. Signed-off-by: Simon Glass <sjg@chromium.org>
197 lines
3.6 KiB
C
197 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <fuse.h>
|
|
#include <misc.h>
|
|
#include <errno.h>
|
|
#include <dm/device.h>
|
|
#include <dm/uclass.h>
|
|
#include <power/stpmic1.h>
|
|
|
|
#define STM32MP_OTP_BANK 0
|
|
#define STM32MP_NVM_BANK 1
|
|
|
|
/*
|
|
* The 'fuse' command API
|
|
*/
|
|
int fuse_read(u32 bank, u32 word, u32 *val)
|
|
{
|
|
int ret;
|
|
struct udevice *dev;
|
|
|
|
switch (bank) {
|
|
case STM32MP_OTP_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stm32mp_bsec),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = misc_read(dev, word * 4 + STM32_BSEC_SHADOW_OFFSET,
|
|
val, 4);
|
|
if (ret != 4)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
|
|
#ifdef CONFIG_PMIC_STPMIC1
|
|
case STM32MP_NVM_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stpmic1_nvm),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
*val = 0;
|
|
ret = misc_read(dev, -word, val, 1);
|
|
if (ret != 1)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
#endif /* CONFIG_PMIC_STPMIC1 */
|
|
|
|
default:
|
|
printf("stm32mp %s: wrong value for bank %i\n", __func__, bank);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int fuse_prog(u32 bank, u32 word, u32 val)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
switch (bank) {
|
|
case STM32MP_OTP_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stm32mp_bsec),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = misc_write(dev, word * 4 + STM32_BSEC_OTP_OFFSET,
|
|
&val, 4);
|
|
if (ret != 4)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
|
|
#ifdef CONFIG_PMIC_STPMIC1
|
|
case STM32MP_NVM_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stpmic1_nvm),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = misc_write(dev, word, &val, 1);
|
|
if (ret != 1)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
#endif /* CONFIG_PMIC_STPMIC1 */
|
|
|
|
default:
|
|
printf("stm32mp %s: wrong value for bank %i\n", __func__, bank);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int fuse_sense(u32 bank, u32 word, u32 *val)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
switch (bank) {
|
|
case STM32MP_OTP_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stm32mp_bsec),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = misc_read(dev, word * 4 + STM32_BSEC_OTP_OFFSET, val, 4);
|
|
if (ret != 4)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
|
|
#ifdef CONFIG_PMIC_STPMIC1
|
|
case STM32MP_NVM_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stpmic1_nvm),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
*val = 0;
|
|
ret = misc_read(dev, word, val, 1);
|
|
if (ret != 1)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
#endif /* CONFIG_PMIC_STPMIC1 */
|
|
|
|
default:
|
|
printf("stm32mp %s: wrong value for bank %i\n", __func__, bank);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int fuse_override(u32 bank, u32 word, u32 val)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
switch (bank) {
|
|
case STM32MP_OTP_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stm32mp_bsec),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = misc_write(dev, word * 4 + STM32_BSEC_SHADOW_OFFSET,
|
|
&val, 4);
|
|
if (ret != 4)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
|
|
#ifdef CONFIG_PMIC_STPMIC1
|
|
case STM32MP_NVM_BANK:
|
|
ret = uclass_get_device_by_driver(UCLASS_MISC,
|
|
DM_DRIVER_GET(stpmic1_nvm),
|
|
&dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = misc_write(dev, -word, &val, 1);
|
|
if (ret != 1)
|
|
ret = -EINVAL;
|
|
else
|
|
ret = 0;
|
|
break;
|
|
#endif /* CONFIG_PMIC_STPMIC1 */
|
|
|
|
default:
|
|
printf("stm32mp %s: wrong value for bank %i\n",
|
|
__func__, bank);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|