linux-next/drivers/nvmem
Geert Uytterhoeven 1530b923a5 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>
2024-11-05 05:33:46 +01:00
..
layouts nvmem: layouts: add U-Boot env layout 2024-09-11 16:05:15 +02:00
apple-efuses.c nvmem: add missing MODULE_DESCRIPTION() macros 2024-07-05 09:55:04 +02:00
bcm-ocotp.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
brcm_nvram.c nvmem: add missing MODULE_DESCRIPTION() macros 2024-07-05 09:55:04 +02:00
core.c nvmem: Fix return type of devm_nvmem_device_get() in kerneldoc 2024-09-03 12:20:41 +02:00
imx-iim.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
imx-ocotp-ele.c nvmem: imx-ocotp-ele: support i.MX95 2024-09-03 12:13:18 +02:00
imx-ocotp-scu.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
imx-ocotp.c nvmem: Move and rename ->fixup_cell_info() 2023-12-15 13:30:07 +01:00
internals.h nvmem: core: Expose cells through sysfs 2023-12-15 13:30:08 +01:00
jz4780-efuse.c nvmem: jz4780-efuse: Use PTR_ERR_OR_ZERO() to simplify code 2020-05-15 16:20:02 +02:00
Kconfig nvmem: Add R-Car E-FUSE driver 2024-11-05 05:33:46 +01:00
lan9662-otpc.c nvmem: lan9662-otp: Change return type of lan9662_otp_wait_flag_clear() 2022-11-22 18:22:05 +01:00
layerscape-sfp.c nvmem: sfp: Add support for TA 2.1 devices 2022-05-09 15:46:29 +02:00
layouts.c nvdimm: Use of_property_present() and of_property_read_bool() 2024-08-21 16:06:43 -05:00
lpc18xx_eeprom.c nvmem: lpc18xx_eeprom: Convert to platform remove callback returning void 2024-05-03 07:26:38 +02:00
lpc18xx_otp.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
Makefile nvmem: Add R-Car E-FUSE driver 2024-11-05 05:33:46 +01:00
meson-efuse.c Char/Misc and other driver changes for 6.11-rc1 2024-07-19 15:55:08 -07:00
meson-mx-efuse.c nvmem: meson-mx-efuse: Remove nvmem_device from efuse struct 2024-05-03 07:26:39 +02:00
microchip-otpc.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
mtk-efuse.c nvmem: mtk-efuse: Drop NVMEM device name 2024-03-07 20:21:53 +00:00
mxs-ocotp.c nvmem: Use device_get_match_data() 2023-10-21 19:19:15 +02:00
nintendo-otp.c nvmem: nintendo-otp: Use devm_platform_ioremap_resource() 2023-04-05 19:41:12 +02:00
qcom-spmi-sdam.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
qfprom.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
qoriq-efuse.c nvmem: add new NXP QorIQ eFuse driver 2023-08-23 16:34:01 +02:00
rave-sp-eeprom.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
rcar-efuse.c nvmem: Add R-Car E-FUSE driver 2024-11-05 05:33:46 +01:00
rmem.c nvmem: rmem: Fix return value of rmem_read() 2024-07-03 16:37:51 +02:00
rockchip-efuse.c nvmem: rockchip-efuse: set type to OTP 2024-07-05 09:55:04 +02:00
rockchip-otp.c nvmem: rockchip-otp: Set type to OTP 2024-07-05 09:55:04 +02:00
sc27xx-efuse.c nvmem: sc27xx: fix module autoloading 2024-05-03 07:26:38 +02:00
sec-qfprom.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
snvs_lpgpr.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
sprd-efuse.c nvmem: sprd: fix module autoloading 2024-05-03 07:26:38 +02:00
stm32-bsec-optee-ta.c nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
stm32-bsec-optee-ta.h nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
stm32-romem.c nvmem: stm32: add support for STM32MP25 BSEC to control OTP data 2023-12-15 13:30:08 +01:00
sunplus-ocotp.c nvmem: sunplus-ocotp: Use devm_platform_ioremap_resource_byname() helper function 2024-09-03 12:13:23 +02:00
sunxi_sid.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
u-boot-env.c nvmem: layouts: add U-Boot env layout 2024-09-11 16:05:15 +02:00
uniphier-efuse.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
vf610-ocotp.c nvmem: vf610-ocotp: Use devm_platform_get_and_ioremap_resource() 2023-04-05 19:41:13 +02:00
zynqmp_nvmem.c nvmem: zynqmp_nvmem: Add support to access efuse 2024-03-07 20:21:53 +00:00