diff options
Diffstat (limited to 'arch/arm/mach-imx/include/mach/ocotp.h')
| -rw-r--r-- | arch/arm/mach-imx/include/mach/ocotp.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/include/mach/ocotp.h b/arch/arm/mach-imx/include/mach/ocotp.h index e758238cb9..7ba5da156b 100644 --- a/arch/arm/mach-imx/include/mach/ocotp.h +++ b/arch/arm/mach-imx/include/mach/ocotp.h @@ -26,10 +26,24 @@ #define OCOTP_BIT(n) FIELD_PREP(OCOTP_BIT_MASK, n) #define OCOTP_WIDTH(n) FIELD_PREP(OCOTP_WIDTH_MASK, (n) - 1) +#define OCOTP_OFFSET_CFG0 0x410 +#define OCOTP_OFFSET_CFG1 0x420 + int imx_ocotp_read_field(uint32_t field, unsigned *value); int imx_ocotp_write_field(uint32_t field, unsigned value); int imx_ocotp_permanent_write(int enable); bool imx_ocotp_sense_enable(bool enable); +static inline u64 imx_ocotp_read_uid(void __iomem *ocotp) +{ + u64 uid; + + uid = readl(ocotp + OCOTP_OFFSET_CFG0); + uid <<= 32; + uid |= readl(ocotp + OCOTP_OFFSET_CFG1); + + return uid; +} + #endif /* __MACH_IMX_OCOTP_H */ |