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Commit 3aa0582fdb82 ("of: platform: populate /firmware/ node from
of_platform_default_populate_init()") takes care of populating
all the devices under the /firmware/ node in of_platform_default_populate_init()
This patch reworks meson_sm_init to use module_platform_driver_probe as
the platform device is populated.
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic@lists.infradead.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Some special SMC calls (i.e. the function used to retrieve the serial
number of the Amlogic SoCs) returns 0 in the register 0 also when the
data was successfully read instead of using the register to hold the
number of bytes returned in the bounce buffer as expected.
With the current implementation of the driver this is seen as an error
and meson_sm_call_read() returns an error even though the data was
correctly read.
To deal with this when we have no information about the amount of read
data (that is 0 is returned by the SMC call) we return to the caller
the requested amount of data and 0 as return value.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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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 <carlo@endlessm.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # for nvmem
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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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 <mark.rutland@arm.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
[khilman: add in SZ_4K cleanup]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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