On 3 September 2015 at 06:37, Bin Meng <bmeng...@gmail.com> wrote: > If we convert to use driver model pci on quark, we will encounter > some chicken and egg problems like below: > > - To enable PCIe root ports, we need program some registers on the > message bus via pci bus. With driver model, the first time to > access pci bus, the pci enumeration process will be triggered. > But without first enabling PCIe root ports, pci enumeration > just hangs when scanning PCIe root ports. > - Similar situation happens when trying to access GPIO from the > PCIe enabling codes, as GPIO requires its block base address > to be assigned via a pci configuration register in the bridge. > > To avoid such dilemma, replace all pci calls in the quark codes > to use the local version which does not go through driver model. > > Signed-off-by: Bin Meng <bmeng...@gmail.com> > Acked-by: Simon Glass <s...@chromium.org> > > --- > > Changes in v4: None > Changes in v3: None > Changes in v2: > - New patch to avoid chicken and egg problem > > arch/x86/cpu/quark/quark.c | 30 +++++++++++++++--------------- > 1 file changed, 15 insertions(+), 15 deletions(-)
Applied to u-boot-x86, thanks! _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
