The PCI memory windows available in vulcan.dtsi are limited to 128MB for 32-bit BARs, and 4GB for 64-bit BARs. Given the memory mapped IO space available in arm64, these windows can be increased substantially to support more use cases. The change increases the 32-bit window to 256MB and the 64-bit window to 128 GB. The firmware on vulcan boards will use these ranges as well. PCI IO windows are not supported on Vulcan, so remove them instead of keeping an unused value. Signed-off-by: Jayachandran C <jchandra@xxxxxxxxxxxx> --- This is an update to the patch with subject "arm64: Broadcom Vulcan support" I had sent earlier, please fold it into that patch if possible Thanks, JC. arch/arm64/boot/dts/broadcom/vulcan.dtsi | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/broadcom/vulcan.dtsi b/arch/arm64/boot/dts/broadcom/vulcan.dtsi index c49b5a8..85820e2 100644 --- a/arch/arm64/boot/dts/broadcom/vulcan.dtsi +++ b/arch/arm64/boot/dts/broadcom/vulcan.dtsi @@ -108,12 +108,15 @@ reg = <0x0 0x30000000 0x0 0x10000000>; reg-names = "PCI ECAM"; - /* IO 0x4000_0000 - 0x4001_0000 */ - ranges = <0x01000000 0 0x40000000 0 0x40000000 0 0x00010000 - /* MEM 0x4800_0000 - 0x5000_0000 */ - 0x02000000 0 0x48000000 0 0x48000000 0 0x08000000 - /* MEM64 pref 0x6_0000_0000 - 0x7_0000_0000 */ - 0x43000000 6 0x00000000 6 0x00000000 1 0x00000000>; + /* + * PCI ranges: + * IO no supported + * MEM 0x4000_0000 - 0x6000_0000 + * MEM64 pref 0x40_0000_0000 - 0x60_0000_0000 + */ + ranges = + <0x02000000 0 0x40000000 0 0x40000000 0 0x20000000 + 0x43000000 0x40 0x00000000 0x40 0x00000000 0x20 0x00000000>; interrupt-map-mask = <0 0 0 7>; interrupt-map = /* addr pin ic icaddr icintr */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
