From: Simon Glass Date: Wed, 25 Sep 2019 14:56:16 +0000 (-0600) Subject: pci: Show a message if PCI autoconfig fails X-Git-Tag: v2020.01-rc1~35^2~28 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=6a73cf3d8fe32f3bddd4ba7dd47dcb75df5ca592;p=oweals%2Fu-boot.git pci: Show a message if PCI autoconfig fails At present this fails silently which can be confusing since some devices on the PCI bus may not work correctly. Show a message in this case. Signed-off-by: Simon Glass Reviewed-by: Bin Meng [bmeng: add a '\n' in the PCI autoconfig fail message] Signed-off-by: Bin Meng --- diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 1a3bf70834..28667bde8d 100644 --- a/drivers/pci/pci_auto.c +++ b/drivers/pci/pci_auto.c @@ -39,6 +39,8 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num, for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_0 + (bars_num * 4); bar += 4) { + int ret = 0; + /* Tickle the BAR and get the response */ if (!enum_only) dm_pci_write_config32(dev, bar, 0xffffffff); @@ -97,9 +99,13 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num, (unsigned long long)bar_size); } - if (!enum_only && pciauto_region_allocate(bar_res, bar_size, - &bar_value, - found_mem64) == 0) { + if (!enum_only) { + ret = pciauto_region_allocate(bar_res, bar_size, + &bar_value, found_mem64); + if (ret) + printf("PCI: Failed autoconfig bar %x\n", bar); + } + if (!enum_only && !ret) { /* Write it out and update our limit */ dm_pci_write_config32(dev, bar, (u32)bar_value);