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Message-ID: <20200110191500.9538-2-vidyas@nvidia.com>
Date: Sat, 11 Jan 2020 00:44:59 +0530
From: Vidya Sagar <vidyas@...dia.com>
To: <bhelgaas@...gle.com>, <lorenzo.pieralisi@....com>,
<rjw@...ysocki.net>, <lenb@...nel.org>, <andrew.murray@....com>,
<treding@...dia.com>, <jonathanh@...dia.com>
CC: <linux-tegra@...r.kernel.org>, <linux-pci@...r.kernel.org>,
<linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<kthota@...dia.com>, <mmaddireddy@...dia.com>, <vidyas@...dia.com>,
<sagar.tv@...il.com>
Subject: [PATCH V3 1/2] arm64: tegra: Re-order PCIe aperture mappings to support ACPI boot
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@...dia.com>
---
V3:
* New change in this series
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 36 ++++++++++++------------
1 file changed, 18 insertions(+), 18 deletions(-)
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@...20000 {
@@ -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@...40000 {
@@ -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@...60000 {
@@ -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@...80000 {
@@ -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@...a0000 {
@@ -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@...00000 {
--
2.17.1
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