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| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2017-10-09 15:26:41 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-20 15:38:02 +0200 |
| commit | 8caef1fa9176c4789b74c806434517b3adf7544a (patch) | |
| tree | 251d8cb6f6a8e96679a29f7e7e1af60ff1110012 /drivers/nvmem/Kconfig | |
| parent | 9593ad32b8be82f3abd6002336a93c405361b9fd (diff) | |
| download | linux-stable-8caef1fa9176c4789b74c806434517b3adf7544a.tar.gz linux-stable-8caef1fa9176c4789b74c806434517b3adf7544a.tar.bz2 linux-stable-8caef1fa9176c4789b74c806434517b3adf7544a.zip | |
nvmem: add a driver for the Amlogic Meson6/Meson8/Meson8b SoCs
This adds a driver to access the efuse on Amlogic Meson6, Meson8 and
Meson8b SoCs.
These SoCs are accessing the efuse IP block directly through the
registers in the "secbus" region. This makes it different from the Meson
GX efuse driver which uses the "secure monitor" firmware to access the
efuse.
The efuse on Meson6 can only read one byte at a time, while the efuse on
Meson8 and Meson8b always reads 4 bytes at a time. The new driver
supports both, but due to lack of hardware Meson6 support was not tested.
The hardware also supports writing. However, this is currently not
supported by the driver.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem/Kconfig')
| -rw-r--r-- | drivers/nvmem/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index 2a07cf169b52..eb09916744bf 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -144,6 +144,16 @@ config MESON_EFUSE This driver can also be built as a module. If so, the module will be called nvmem_meson_efuse. +config MESON_MX_EFUSE + tristate "Amlogic Meson6/Meson8/Meson8b eFuse Support" + depends on ARCH_MESON || COMPILE_TEST + help + This is a driver to retrieve specific values from the eFuse found on + the Amlogic Meson6, Meson8 and Meson8b SoCs. + + This driver can also be built as a module. If so, the module + will be called nvmem_meson_mx_efuse. + config NVMEM_SNVS_LPGPR tristate "Support for Low Power General Purpose Register" depends on SOC_IMX6 || COMPILE_TEST |