mb/google/volteer: Enable RTD3 for SD card

Enable the PCIe RTD3 driver for the PCIe attached SD card interface
and provide the enable/reset GPIOs.  These GPIOs are common across
all variants so this is implemented in the baseboard devicetree with
an fw_config probe if the device is present.  The RTS5261 device
does not have an enable GPIO so it is disabled in a workaround in
mainboard.c, along with marking the SD-Express device as external.

BUG=b:162289926, b:162289982
TEST=Tested on Delbin platform to ensure the system can enter the
S0i3.2 substate and suspend/resume is stable.
enabling this for the regular Genesys

Change-Id: I40fe05829783c7bce2a2c4c1520a4a7430642e26
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47377
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

0 files changed, 0 insertions, 0 deletions