u-boot/drivers/misc/stm32mp_fuse.c
Patrick Delaunay be56ab1b8f misc: stm32_fuse: Fix warnings when compiling with W=1
This patch solves the following warnings:

warning: no previous prototype for 'fuse_read' [-Wmissing-prototypes]
 int fuse_read(u32 bank, u32 word, u32 *val)
     ^~~~~~~~~
  CC      cmd/sf.o
warning: no previous prototype for 'fuse_prog' [-Wmissing-prototypes]
 int fuse_prog(u32 bank, u32 word, u32 val)
     ^~~~~~~~~
warning: no previous prototype for 'fuse_sense' [-Wmissing-prototypes]
 int fuse_sense(u32 bank, u32 word, u32 *val)
     ^~~~~~~~~~
warning: no previous prototype for 'fuse_override' [-Wmissing-prototypes]
 int fuse_override(u32 bank, u32 word, u32 val)
     ^~~~~~~~~~~~~

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12 11:50:56 +02:00

157 lines
2.9 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 = 0;
struct udevice *dev;
switch (bank) {
case STM32MP_OTP_BANK:
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_read(dev, word * 4 + STM32_BSEC_SHADOW_OFFSET,
val, 4);
if (ret < 0)
return ret;
ret = 0;
break;
#ifdef CONFIG_PMIC_STPMIC1
case STM32MP_NVM_BANK:
*val = 0;
ret = stpmic1_shadow_read_byte(word, (u8 *)val);
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_GET_DRIVER(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_write(dev, word * 4 + STM32_BSEC_OTP_OFFSET,
&val, 4);
if (ret < 0)
return ret;
ret = 0;
break;
#ifdef CONFIG_PMIC_STPMIC1
case STM32MP_NVM_BANK:
ret = stpmic1_nvm_write_byte(word, (u8 *)&val);
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_GET_DRIVER(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_read(dev, word * 4 + STM32_BSEC_OTP_OFFSET, val, 4);
if (ret < 0)
return ret;
ret = 0;
break;
#ifdef CONFIG_PMIC_STPMIC1
case STM32MP_NVM_BANK:
*val = 0;
ret = stpmic1_nvm_read_byte(word, (u8 *)val);
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_GET_DRIVER(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_write(dev, word * 4 + STM32_BSEC_SHADOW_OFFSET,
&val, 4);
if (ret < 0)
return ret;
ret = 0;
break;
#ifdef CONFIG_PMIC_STPMIC1
case STM32MP_NVM_BANK:
ret = stpmic1_shadow_write_byte(word, (u8 *)&val);
break;
#endif /* CONFIG_PMIC_STPMIC1 */
default:
printf("stm32mp %s: wrong value for bank %i\n",
__func__, bank);
ret = -EINVAL;
break;
}
return ret;
}