linux-kernel - [PATCH] arm64: dts: marvell: mochabin: enlarge PCI memory window

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Message-Id: <20230219121418.1395401-1-robert.marko@sartura.hr>
Date:   Sun, 19 Feb 2023 13:14:18 +0100
From:   Robert Marko <robert.marko@...tura.hr>
To:     andrew@...n.ch, gregory.clement@...tlin.com,
        sebastian.hesselbarth@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Robert Marko <robert.marko@...tura.hr>
Subject: [PATCH] arm64: dts: marvell: mochabin: enlarge PCI memory window

Armada 7040 uses a rather small 15MB memory window for every PCI adapter,
however this is not sufficient for Qualcomm QCA6390 802.11ax cards that
are shipped along with the OpenWrt WLAN model of MOCHAbin as ath11k
requires at least 16MB of memory.

So, similar to what MACCHIATOBin has been doing for years, lets move
to using the second PCIe 2 memory window and expand it to 128MB to
make it future proof.

Signed-off-by: Robert Marko <robert.marko@...tura.hr>
---
 arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts b/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts
index 7ca71f2d7afb..39ce6e25a8ef 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-mochabin.dts
@@ -455,4 +455,5 @@ &cp0_pcie2 {
 	phys = <&cp0_comphy5 2>;
 	phy-names = "cp0-pcie2-x1-phy";
 	reset-gpios = <&cp0_gpio1 9 GPIO_ACTIVE_LOW>;
+	ranges = <0x82000000 0x0 0xc0000000 0x0 0xc0000000 0x0 0x8000000>;
 };
-- 
2.39.2