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imx: ventana: default pci to disabled

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The IMX6 PCIe host controller does not have a proper reset and as such there
are several issues that can arise if PCI is enabled in the bootloader follwed
by Linux trying to re-configure LTSSM and/or toggling PERST# to the devices.

For now, the best approach seems to default to disabling PCI by defaulting
pciedisable=1. This can be overridden by the user if they need PCI in the
bootloader, for example:
 - GW552x needing ethernet access in bootloader
 - GW16082 expansion board needing a device-tree fixup for irq mapping

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Tim Harvey 2016-06-17 06:20:26 -07:00 committed by Stefano Babic
parent ec21aee653
commit f4416579d3
1 changed files with 1 additions and 0 deletions
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include/configs/gw_ventana.h
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@ -274,6 +274,7 @@
"dio0:mode=gpio;dio1:mode=gpio;dio2:mode=gpio;dio3:mode=gpio\0" \
#define CONFIG_EXTRA_ENV_SETTINGS_COMMON \
"pcidisable=1\0" \
"usb_pgood_delay=2000\0" \
"console=ttymxc1\0" \
"bootdevs=usb mmc sata flash\0" \