On 23/05/16 18:30, Carlo Caione wrote:
From: Carlo Caione <carlo@xxxxxxxxxxxx>
In the Amlogic SoCs the secure monitor calls are used for a lot of reasons:
interact with the NVMEM (efuses), check the reboot reason, set USB boot, ...
This driver defines a generic interface towards the secure monitor that can be
used by more specialized drivers to interact with the secure monitor itself
without worrying about bounce buffers managing.
For the whole series:
Reviewed-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Changelog:
v3:
* Moved driver to drivers/firmware
* Added EXPORT_SYMBOL macros
* Changed '_' in '-'
* Introduced 'struct meson_sm_firmware' and 'meson_sm_get_fw()' to be used by
drivers using the secure-monitor to enforce probe ordering
v2:
* All the SMC function identifiers are now in a SoC-specific header file to
be included by the DTS files so the SMC commands are now defined in the DT
instead to be hardcoded into the driver
* Patchset is no longer an RFC
* Better error management and boundary checking
* s/unsigned int/u32/
* SMC call not only on CPU 0
* Fix memory leaking
* s/amlogic/meson/ in the directory names
Carlo Caione (4):
firmware: Amlogic: Add secure monitor driver
firmware: dt-bindings: Add secure monitor header file for GXBB
ARM64: dts: amlogic: gxbb: Enable secure monitor
documentation: Add secure monitor binding documentation
.../bindings/firmware/meson/meson_sm.txt | 51 ++++++
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 11 ++
drivers/firmware/Kconfig | 1 +
drivers/firmware/Makefile | 1 +
drivers/firmware/meson/Kconfig | 8 +
drivers/firmware/meson/Makefile | 1 +
drivers/firmware/meson/meson_sm.c | 179 +++++++++++++++++++++
include/dt-bindings/firmware/meson-gxbb-sm.h | 44 +++++
include/linux/firmware/meson/meson_sm.h | 38 +++++
9 files changed, 334 insertions(+)
create mode 100644 Documentation/devicetree/bindings/firmware/meson/meson_sm.txt
create mode 100644 drivers/firmware/meson/Kconfig
create mode 100644 drivers/firmware/meson/Makefile
create mode 100644 drivers/firmware/meson/meson_sm.c
create mode 100644 include/dt-bindings/firmware/meson-gxbb-sm.h
create mode 100644 include/linux/firmware/meson/meson_sm.h
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