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arm64: tegra: Re-order PCIe aperture mappings
authorVidya Sagar <vidyas@nvidia.com>
Mon, 6 Jul 2020 17:14:54 +0000 (22:44 +0530)
committerThierry Reding <treding@nvidia.com>
Wed, 15 Jul 2020 09:07:39 +0000 (11:07 +0200)
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>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
arch/arm64/boot/dts/nvidia/tegra194.dtsi patch | blob | history

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index ea629da..f88e6d1 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1438,9 +1438,9 @@
 
                bus-range = <0x0 0xff>;
 
-               ranges = <0x01000000 0x0  0x30100000 0x0  0x30100000 0x0 0x00100000>, /* downstream I/O (1MB) */
-                        <0x43000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000>, /* prefetchable memory (768MB) */
-                        <0x02000000 0x0  0x40000000 0x12 0x30000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
+               ranges = <0x43000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000>, /* prefetchable memory (768 MiB) */
+                        <0x02000000 0x0  0x40000000 0x12 0x30000000 0x0 0x0fff0000>, /* non-prefetchable memory (256 MiB - 64 KiB) */
+                        <0x01000000 0x0  0x00000000 0x12 0x3fff0000 0x0 0x00010000>; /* downstream I/O (64 KiB) */
 
                interconnects = <&mc TEGRA194_MEMORY_CLIENT_PCIE1R &emc>,
                                <&mc TEGRA194_MEMORY_CLIENT_PCIE1W &emc>;
@@ -1488,9 +1488,9 @@
 
                bus-range = <0x0 0xff>;
 
-               ranges = <0x01000000 0x0  0x32100000 0x0  0x32100000 0x0 0x00100000>, /* downstream I/O (1MB) */
-                        <0x43000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000>, /* prefetchable memory (768MB) */
-                        <0x02000000 0x0  0x40000000 0x12 0x70000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
+               ranges = <0x43000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000>, /* prefetchable memory (768 MiB) */
+                        <0x02000000 0x0  0x40000000 0x12 0x70000000 0x0 0x0fff0000>, /* non-prefetchable memory (256 MiB - 64 KiB) */
+                        <0x01000000 0x0  0x00000000 0x12 0x7fff0000 0x0 0x00010000>; /* downstream I/O (64 KiB) */
 
                interconnects = <&mc TEGRA194_MEMORY_CLIENT_PCIE2AR &emc>,
                                <&mc TEGRA194_MEMORY_CLIENT_PCIE2AW &emc>;
@@ -1538,9 +1538,9 @@
 
                bus-range = <0x0 0xff>;
 
-               ranges = <0x01000000 0x0  0x34100000 0x0  0x34100000 0x0 0x00100000>, /* downstream I/O (1MB) */
-                        <0x43000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000>, /* prefetchable memory (768MB) */
-                        <0x02000000 0x0  0x40000000 0x12 0xb0000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
+               ranges = <0x43000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000>, /* prefetchable memory (768 MiB) */
+                        <0x02000000 0x0  0x40000000 0x12 0xb0000000 0x0 0x0fff0000>, /* non-prefetchable memory (256 MiB + 64 KiB) */
+                        <0x01000000 0x0  0x00000000 0x12 0xbfff0000 0x0 0x00010000>; /* downstream I/O (64 KiB) */
 
                interconnects = <&mc TEGRA194_MEMORY_CLIENT_PCIE3R &emc>,
                                <&mc TEGRA194_MEMORY_CLIENT_PCIE3W &emc>;
@@ -1588,9 +1588,9 @@
 
                bus-range = <0x0 0xff>;
 
-               ranges = <0x01000000 0x0  0x36100000 0x0  0x36100000 0x0 0x00100000>, /* downstream I/O (1MB) */
-                        <0x43000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000>, /* prefetchable memory (13GB) */
-                        <0x02000000 0x0  0x40000000 0x17 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
+               ranges = <0x43000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000>, /* prefetchable memory (13 GiB) */
+                        <0x02000000 0x0  0x40000000 0x17 0x40000000 0x0 0xbfff0000>, /* non-prefetchable memory (3 GiB - 64 KiB) */
+                        <0x01000000 0x0  0x00000000 0x17 0xffff0000 0x0 0x00010000>; /* downstream I/O (64 KiB) */
 
                interconnects = <&mc TEGRA194_MEMORY_CLIENT_PCIE4R &emc>,
                                <&mc TEGRA194_MEMORY_CLIENT_PCIE4W &emc>;
@@ -1638,9 +1638,9 @@
 
                bus-range = <0x0 0xff>;
 
-               ranges = <0x01000000 0x0  0x38100000 0x0  0x38100000 0x0 0x00100000>, /* downstream I/O (1MB) */
-                        <0x43000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000>, /* prefetchable memory (13GB) */
-                        <0x02000000 0x0  0x40000000 0x1b 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
+               ranges = <0x43000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000>, /* prefetchable memory (13 GiB) */
+                        <0x02000000 0x0  0x40000000 0x1b 0x40000000 0x0 0xbfff0000>, /* non-prefetchable memory (3 GiB - 64 KiB) */
+                        <0x01000000 0x0  0x00000000 0x1b 0xffff0000 0x0 0x00010000>; /* downstream I/O (64 KiB) */
 
                interconnects = <&mc TEGRA194_MEMORY_CLIENT_PCIE0R &emc>,
                                <&mc TEGRA194_MEMORY_CLIENT_PCIE0W &emc>;
@@ -1692,9 +1692,9 @@
 
                bus-range = <0x0 0xff>;
 
-               ranges = <0x01000000 0x0  0x3a100000 0x0  0x3a100000 0x0 0x00100000>, /* downstream I/O (1MB) */
-                        <0x43000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000>, /* prefetchable memory (13GB) */
-                        <0x02000000 0x0  0x40000000 0x1f 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
+               ranges = <0x43000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000>, /* prefetchable memory (13 GiB) */
+                        <0x02000000 0x0  0x40000000 0x1f 0x40000000 0x0 0xbfff0000>, /* non-prefetchable memory (3 GiB - 64 KiB) */
+                        <0x01000000 0x0  0x00000000 0x1f 0xffff0000 0x0 0x00010000>; /* downstream I/O (64 KiB) */
 
                interconnects = <&mc TEGRA194_MEMORY_CLIENT_PCIE5R &emc>,
                                <&mc TEGRA194_MEMORY_CLIENT_PCIE5W &emc>;
Domain: System / Kernel;