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 (file)
--- a/arch/arm/mach-stm32mp/bsec.c
+++ b/arch/arm/mach-stm32mp/bsec.c
@@ -632,3 +632,20 @@ bool bsec_dbgswenable(void)
 
        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;
+}

diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c
index 0ad5f30..6f44c75 100644 (file)
--- a/arch/arm/mach-stm32mp/cpu.c
+++ b/arch/arm/mach-stm32mp/cpu.c
@@ -349,23 +349,6 @@ u32 get_cpu_rev(void)
        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 */
 static u32 get_cpu_rpn(void)
 {

diff --git a/arch/arm/mach-stm32mp/include/mach/sys_proto.h b/arch/arm/mach-stm32mp/include/mach/sys_proto.h
index b91f98e..dc98f0c 100644 (file)
--- a/arch/arm/mach-stm32mp/include/mach/sys_proto.h
+++ b/arch/arm/mach-stm32mp/include/mach/sys_proto.h
@@ -52,3 +52,6 @@ int setup_mac_address(void);
 
 /* board power management : configure vddcore according OPP */
 void board_vddcore_init(u32 voltage_mv);
+
+/* helper function: read data from OTP */
+u32 get_otp(int index, int shift, int mask);