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arm64: dts: vulcan: Update PCI ranges
authorJayachandran C <jchandra@broadcom.com>
Sun, 28 Feb 2016 07:37:17 +0000 (13:07 +0530)
committerArnd Bergmann <arnd@arndb.de>
Tue, 29 Mar 2016 22:26:16 +0000 (00:26 +0200)
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@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
arch/arm64/boot/dts/broadcom/vulcan.dtsi patch | blob | blame | history

diff --git a/arch/arm64/boot/dts/broadcom/vulcan.dtsi b/arch/arm64/boot/dts/broadcom/vulcan.dtsi
index c49b5a85809c5bc96d48f3b8799b965a8f96e860..85820e2bca9df4ce72f63f69670d88586c23930a 100644 (file)
--- 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 */