diff mbox series

[V3,1/2] arm64: tegra: Re-order PCIe aperture mappings to support ACPI boot

Message ID 20200110191500.9538-2-vidyas@nvidia.com
State New
Headers show
Series [V3,1/2] arm64: tegra: Re-order PCIe aperture mappings to support ACPI boot | expand

Commit Message

Vidya Sagar Jan. 10, 2020, 7:14 p.m. UTC 
Re-order Tegra194's PCIe aperture mappings to have IO window moved to
64-bit aperture and have the entire 32-bit aperture used for accessing
the configuration space. This makes it to use the entire 32MB of the 32-bit
aperture for ECAM purpose while booting through ACPI.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
---
V3:
* New change in this series

 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 36 ++++++++++++------------
 1 file changed, 18 insertions(+), 18 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index ccac43be12ac..5d790ec5bdef 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1247,9 +1247,9 @@ 
 		nvidia,aspm-l0s-entrance-latency-us = <3>;
 
 		bus-range = <0x0 0xff>;
-		ranges = <0x81000000 0x0  0x30100000 0x0  0x30100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000   /* prefetchable memory (768MB) */
-			  0x82000000 0x0  0x40000000 0x12 0x30000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
+		ranges = <0xc2000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000   /* prefetchable memory (768MB) */
+			  0x82000000 0x00 0x40000000 0x12 0x30000000 0x0 0x0fff0000   /* non-prefetchable memory (256MB - 64KB) */
+			  0x81000000 0x00 0x00000000 0x12 0x3fff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
 	};
 
 	pcie@14120000 {
@@ -1292,9 +1292,9 @@ 
 		nvidia,aspm-l0s-entrance-latency-us = <3>;
 
 		bus-range = <0x0 0xff>;
-		ranges = <0x81000000 0x0  0x32100000 0x0  0x32100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000   /* prefetchable memory (768MB) */
-			  0x82000000 0x0  0x40000000 0x12 0x70000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
+		ranges = <0xc2000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000   /* prefetchable memory (768MB) */
+			  0x82000000 0x00 0x40000000 0x12 0x70000000 0x0 0x0fff0000   /* non-prefetchable memory (256MB - 64KB) */
+			  0x81000000 0x00 0x00000000 0x12 0x7fff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
 	};
 
 	pcie@14140000 {
@@ -1337,9 +1337,9 @@ 
 		nvidia,aspm-l0s-entrance-latency-us = <3>;
 
 		bus-range = <0x0 0xff>;
-		ranges = <0x81000000 0x0  0x34100000 0x0  0x34100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000   /* prefetchable memory (768MB) */
-			  0x82000000 0x0  0x40000000 0x12 0xb0000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
+		ranges = <0xc2000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000   /* prefetchable memory (768MB) */
+			  0x82000000 0x00 0x40000000 0x12 0xb0000000 0x0 0x0fff0000   /* non-prefetchable memory (256MB - 64KB) */
+			  0x81000000 0x00 0x00000000 0x12 0xbfff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
 	};
 
 	pcie@14160000 {
@@ -1382,9 +1382,9 @@ 
 		nvidia,aspm-l0s-entrance-latency-us = <3>;
 
 		bus-range = <0x0 0xff>;
-		ranges = <0x81000000 0x0  0x36100000 0x0  0x36100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
-			  0x82000000 0x0  0x40000000 0x17 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
+		ranges = <0xc2000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
+			  0x82000000 0x00 0x40000000 0x17 0x40000000 0x0 0xbfff0000   /* non-prefetchable memory (3GB - 64KB) */
+			  0x81000000 0x00 0x00000000 0x17 0xffff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
 	};
 
 	pcie@14180000 {
@@ -1427,9 +1427,9 @@ 
 		nvidia,aspm-l0s-entrance-latency-us = <3>;
 
 		bus-range = <0x0 0xff>;
-		ranges = <0x81000000 0x0  0x38100000 0x0  0x38100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
-			  0x82000000 0x0  0x40000000 0x1b 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
+		ranges = <0xc2000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
+			  0x82000000 0x00 0x40000000 0x1b 0x40000000 0x0 0xbfff0000   /* non-prefetchable memory (3GB - 64KB) */
+			  0x81000000 0x00 0x00000000 0x1b 0xffff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
 	};
 
 	pcie@141a0000 {
@@ -1476,9 +1476,9 @@ 
 		nvidia,aspm-l0s-entrance-latency-us = <3>;
 
 		bus-range = <0x0 0xff>;
-		ranges = <0x81000000 0x0  0x3a100000 0x0  0x3a100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
-			  0x82000000 0x0  0x40000000 0x1f 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
+		ranges = <0xc2000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
+			  0x82000000 0x00 0x40000000 0x1f 0x40000000 0x0 0xbfff0000   /* non-prefetchable memory (3GB - 64KB) */
+			  0x81000000 0x00 0x00000000 0x1f 0xffff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
 	};
 
 	sysram@40000000 {