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| author | Stefan Christ <s.christ@phytec.de> | 2015-07-14 13:55:14 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-07-20 07:39:07 +0200 |
| commit | a385f657e941c90f0d9f5e46a46f9f53a952dfb1 (patch) | |
| tree | 9e1e3147c0213fb9a3697307480add61c12a5ee3 /arch/arm/mach-imx/Kconfig | |
| parent | aa2bbd2d572ce7771e9dafffd3ce1a36a6ab2fc8 (diff) | |
| download | barebox-a385f657e941c90f0d9f5e46a46f9f53a952dfb1.tar.gz barebox-a385f657e941c90f0d9f5e46a46f9f53a952dfb1.tar.xz | |
ARM: i.MX6: clarify usage of /dev/imx-ocotp
Explain the relationship between the OCOTP addresses from the i.MX6
Reference Manual and the file offset in '/dev/imx-ocotp'.
Signed-off-by: Stefan Christ <s.christ@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/Kconfig')
| -rw-r--r-- | arch/arm/mach-imx/Kconfig | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index f8f6004630..147c411266 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -676,8 +676,10 @@ config IMX_OCOTP_WRITE prompt "Enable write support of i.MX6 CPUs OTP fuses" depends on IMX_OCOTP help - This adds write support to IMX6 On-Chip OTP registers. - Example of set MAC to 12:34:56:78:9A:BC (2 words with offset 0x22 * 4): + This adds write support to IMX6 On-Chip OTP registers. Example of set + MAC to 12:34:56:78:9A:BC (2 words with address 0x22 (OCOTP_MAC0) and + address 0x23 (OCOTP_MAC1)). To calculate the file offset multiply + the value of the address by 4. mw -l -d /dev/imx-ocotp 0x8C 0x00001234 mw -l -d /dev/imx-ocotp 0x88 0x56789ABC |