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arm: stm32mp: move the get_otp helper function in bsec

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As the get_otp() helper function in bsec are common for all STM32MP family,
move this function in bsec driver

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-05-20 18:24:41 +02:00
parent 2ff0866b45
commit 3865a7ec95
3 changed files with 20 additions and 17 deletions
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17
arch/arm/mach-stm32mp/bsec.c
View File

@ -632,3 +632,20 @@ bool bsec_dbgswenable(void)
return false; return false;
} }
u32 get_otp(int index, int shift, int mask)
{
int ret;
struct udevice *dev;
u32 otp = 0;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_DRIVER_GET(stm32mp_bsec),
&dev);
if (!ret)
ret = misc_read(dev, STM32_BSEC_SHADOW(index),
&otp, sizeof(otp));
return (otp >> shift) & mask;
}

17
arch/arm/mach-stm32mp/cpu.c
View File

@ -349,23 +349,6 @@ u32 get_cpu_rev(void)
return (read_idc() & DBGMCU_IDC_REV_ID_MASK) >> DBGMCU_IDC_REV_ID_SHIFT; return (read_idc() & DBGMCU_IDC_REV_ID_MASK) >> DBGMCU_IDC_REV_ID_SHIFT;
} }
static u32 get_otp(int index, int shift, int mask)
{
int ret;
struct udevice *dev;
u32 otp = 0;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_DRIVER_GET(stm32mp_bsec),
&dev);
if (!ret)
ret = misc_read(dev, STM32_BSEC_SHADOW(index),
&otp, sizeof(otp));
return (otp >> shift) & mask;
}
/* Get Device Part Number (RPN) from OTP */ /* Get Device Part Number (RPN) from OTP */
static u32 get_cpu_rpn(void) static u32 get_cpu_rpn(void)
{ {

3
arch/arm/mach-stm32mp/include/mach/sys_proto.h
View File

@ -52,3 +52,6 @@ int setup_mac_address(void);
/* board power management : configure vddcore according OPP */ /* board power management : configure vddcore according OPP */
void board_vddcore_init(u32 voltage_mv); void board_vddcore_init(u32 voltage_mv);
/* helper function: read data from OTP */
u32 get_otp(int index, int shift, int mask);