arm: stm32mp: move the get_otp helper function in bsec
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>
diff --git a/arch/arm/mach-stm32mp/bsec.c b/arch/arm/mach-stm32mp/bsec.c
index 506caa0..c00130b 100644
--- a/arch/arm/mach-stm32mp/bsec.c
+++ b/arch/arm/mach-stm32mp/bsec.c
@@ -632,3 +632,20 @@
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;
+}