Philippe Mathieu-Daudé e7364ae74c hw/sd/sdcard: Add sd_cmd_GEN_CMD handler (CMD56)
"General command" (GEN_CMD, CMD56) is described as:

  GEN_CMD is the same as the single block read or write
  commands (CMD24 or CMD17). The difference is that [...]
  the data block is not a memory payload data but has a
  vendor specific format and meaning.

Thus this block must not be stored overwriting data block
on underlying storage drive. Handle as RAZ/WI.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240703134356.85972-3-philmd@linaro.org>
2024-07-05 23:53:57 +02:00
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