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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-05-13 12:13:44 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-11-08 14:43:26 +0100 |
| commit | ce864aa5a42895fc91b2bc8f5b83d63f844f50b1 (patch) | |
| tree | 954e3e05631c9b49108e26fb84e3a0cbd8decc4d /arch/arm/mach-imx/include/mach/ocotp.h | |
| parent | 36be2505d698e506423131d7c53458d297ee5fa3 (diff) | |
| download | barebox-ce864aa5a42895fc91b2bc8f5b83d63f844f50b1.tar.gz barebox-ce864aa5a42895fc91b2bc8f5b83d63f844f50b1.tar.xz | |
ARM: i.MX: OCOTP: Add functions to access fuses field wise
Add functions to access the OCOTP fuses field wise, similar to what has
been done for the IIM. Also add a i.MX6 fusemap header file.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/include/mach/ocotp.h')
| -rw-r--r-- | arch/arm/mach-imx/include/mach/ocotp.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/include/mach/ocotp.h b/arch/arm/mach-imx/include/mach/ocotp.h new file mode 100644 index 0000000000..430bc756be --- /dev/null +++ b/arch/arm/mach-imx/include/mach/ocotp.h @@ -0,0 +1,20 @@ +#ifndef __MACH_IMX_OCOTP_H +#define __MACH_IMX_OCOTP_H + +#define OCOTP_WORD_MASK_WIDTH 8 +#define OCOTP_WORD_MASK_SHIFT 0 +#define OCOTP_WORD(n) ((((n) - 0x400) >> 4) & ((1 << OCOTP_WORD_MASK_WIDTH) - 1)) + +#define OCOTP_BIT_MASK_WIDTH 5 +#define OCOTP_BIT_MASK_SHIFT (OCOTP_WORD_MASK_SHIFT + OCOTP_WORD_MASK_WIDTH) +#define OCOTP_BIT(n) (((n) & ((1 << OCOTP_BIT_MASK_WIDTH) - 1)) << OCOTP_BIT_MASK_SHIFT) + +#define OCOTP_WIDTH_MASK_WIDTH 5 +#define OCOTP_WIDTH_MASK_SHIFT (OCOTP_BIT_MASK_SHIFT + OCOTP_BIT_MASK_WIDTH) +#define OCOTP_WIDTH(n) ((((n) - 1) & ((1 << OCOTP_WIDTH_MASK_WIDTH) - 1)) << OCOTP_WIDTH_MASK_SHIFT) + +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); + +#endif /* __MACH_IMX_OCOTP_H */ |