[U-Boot] [U-Boot, 1/3] PCI: dm: Ignore 64-bit memory regions if CONFIG_SYS_PCI_64BIT not set

[Tom Rini]

On Mon, May 14, 2018 at 06:47:50PM +0300, Tuomas Tynkkynen wrote:

> Currently, qemu_arm_defconfig and qemu_arm64_defconfig only work with
> the 'highmem=off' parameter passed to QEMU's virt machine. The reason is
> that when 'highmem' is not disabled, QEMU appends 64-bit a memory
> resource to the PCI controller's regions property in DT in addition to
> the 32-bit PCI memory window in low memory. And the current DT parsing
> code picks the last (thus the 64-bit one) memory resource, whose address
> eventually gets silently truncated to 32 bits because
> CONFIG_SYS_PCI_64BIT is not set, which obviously causes PCI to break.
> 
> Avoid this problem by ignoring memory regions whose addresses are above
> the 32-bit boundary when CONFIG_SYS_PCI_64BIT is not set.
> 
> Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen at iki.fi>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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