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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-10-30 14:03:10 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-05 05:33:46 +0100 |
| commit | 1530b923a514b158b91453bf5adc9291e77638f5 (patch) | |
| tree | c193a5afc798c7c9dae110ef126773dd1744250f /drivers/nvmem/Makefile | |
| parent | dt-bindings: fuse: Move renesas,rcar-{efuse,otp} to nvmem (diff) | |
| download | linux-1530b923a514b158b91453bf5adc9291e77638f5.tar.gz linux-1530b923a514b158b91453bf5adc9291e77638f5.zip | |
nvmem: Add R-Car E-FUSE driver
R-Car Gen4 SoCs contain fuses indicating hardware support or hardware
(e.g. tuning) parameters. Add a driver to access the state of the
fuses. This supports two types of hardware fuse providers:
1. E-FUSE non-volatile memory accessible through the Pin Function
Controller on R-Car V3U and S4-8,
2. E-FUSE non-volatile memory accessible through OTP_MEM on R-Car V4H
and V4M.
The state of the cells can be read using the NVMEM framework, either
from kernel space (e.g. by the Renesas UFSHCD driver), or from
userspace.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20241030140315.40562-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem/Makefile')
| -rw-r--r-- | drivers/nvmem/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile index cdd01fbf1313..5b77bbb6488b 100644 --- a/drivers/nvmem/Makefile +++ b/drivers/nvmem/Makefile @@ -52,6 +52,8 @@ obj-$(CONFIG_NVMEM_QCOM_SEC_QFPROM) += nvmem_sec_qfprom.o nvmem_sec_qfprom-y := sec-qfprom.o obj-$(CONFIG_NVMEM_RAVE_SP_EEPROM) += nvmem-rave-sp-eeprom.o nvmem-rave-sp-eeprom-y := rave-sp-eeprom.o +obj-$(CONFIG_NVMEM_RCAR_EFUSE) += nvmem-rcar-efuse.o +nvmem-rcar-efuse-y := rcar-efuse.o obj-$(CONFIG_NVMEM_RMEM) += nvmem-rmem.o nvmem-rmem-y := rmem.o obj-$(CONFIG_NVMEM_ROCKCHIP_EFUSE) += nvmem_rockchip_efuse.o |