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[2/6] ARM: tegra: limit PCIe config space mapping to 4K for T20

Message ID 1507834211-24922-3-git-send-email-vidyas@nvidia.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Vidya Sagar Oct. 12, 2017, 6:50 p.m. UTC 
reduces PCIe end point config space mapping size from its
current 256MB to 4K to give more space for BAR mapping

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
---
 arch/arm/boot/dts/tegra20.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
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Patch

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 7c85f97f72ea..4c761a60cdf7 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -591,7 +591,7 @@ 
 		device_type = "pci";
 		reg = <0x80003000 0x00000800   /* PADS registers */
 		       0x80003800 0x00000200   /* AFI registers */
-		       0x90000000 0x10000000>; /* configuration space */
+		       0x82000000 0x00001000>; /* configuration space */
 		reg-names = "pads", "afi", "cs";
 		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH   /* controller interrupt */
 			      GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
@@ -607,9 +607,9 @@ 
 
 		ranges = <0x82000000 0 0x80000000 0x80000000 0 0x00001000   /* port 0 registers */
 			  0x82000000 0 0x80001000 0x80001000 0 0x00001000   /* port 1 registers */
-			  0x81000000 0 0          0x82000000 0 0x00010000   /* downstream I/O */
-			  0x82000000 0 0xa0000000 0xa0000000 0 0x08000000   /* non-prefetchable memory */
-			  0xc2000000 0 0xa8000000 0xa8000000 0 0x18000000>; /* prefetchable memory */
+			  0x81000000 0 0          0x82001000 0 0x00010000   /* downstream I/O */
+			  0x82000000 0 0x82100000 0x82100000 0 0x05F00000   /* non-prefetchable memory */
+			  0xc2000000 0 0x88000000 0x88000000 0 0x38000000>; /* prefetchable memory */
 
 		clocks = <&tegra_car TEGRA20_CLK_PEX>,
 			 <&tegra_car TEGRA20_CLK_AFI>,