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This patch is adding communication layer with firmware.
Firmware driver provides an interface to firmware APIs.
Interface APIs can be used by any driver to communicate to
PMUFW(Platform Management Unit). All requests go through ATF.
Signed-off-by: Rajan Vaja <[email protected]>
Signed-off-by: Jolly Shah <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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The Amlogic Meson SoC Secure Monitor implements a call to retrieve an unique
SoC ID starting from the GX Family and all new families.
The serial number is simply exposed as a sysfs entry under the firmware
sysfs directory.
Signed-off-by: Neil Armstrong <[email protected]>
Signed-off-by: Kevin Hilman <[email protected]>
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After the data is read by the secure monitor driver it is being copied
in the output buffer checking only the size of the bounce buffer but not
the size of the output buffer.
Fix this in the secure monitor driver slightly changing the API. Fix
also the efuse driver that it is the only driver using this API to not
break bisectability.
Signed-off-by: Carlo Caione <[email protected]>
Acked-by: Srinivas Kandagatla <[email protected]> # for nvmem
Acked-by: Mark Rutland <[email protected]>
Signed-off-by: Kevin Hilman <[email protected]>
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Introduce a driver to provide calls into secure monitor mode.
In the Amlogic SoCs these calls are used for multiple reasons: access to
NVMEM, set USB boot, enable JTAG, etc...
Acked-by: Mark Rutland <[email protected]>
Signed-off-by: Carlo Caione <[email protected]>
[khilman: add in SZ_4K cleanup]
Signed-off-by: Kevin Hilman <[email protected]>
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