From f4416579d31d884305e383f7370ee2262c0f8a7d Mon Sep 17 00:00:00 2001 From: Tim Harvey Date: Fri, 17 Jun 2016 06:20:26 -0700 Subject: [PATCH] imx: ventana: default pci to disabled 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 --- include/configs/gw_ventana.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h index 982ddba39c..4acfca65a0 100644 --- a/include/configs/gw_ventana.h +++ b/include/configs/gw_ventana.h @@ -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" \ -- 2.39.5