1 files changed, 0 insertions, 86 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0508-overlays-Add-pcie-32bit-dma-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0508-overlays-Add-pcie-32bit-dma-overlay.patch
deleted file mode 100644
index 0186a0b81b..0000000000
--- a/target/linux/bcm27xx/patches-5.10/950-0508-overlays-Add-pcie-32bit-dma-overlay.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-From ce2860020c57a59c543139ad7b260624cd930dff Mon Sep 17 00:00:00 2001
-From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
-Date: Mon, 15 Mar 2021 17:25:02 +0100
-Subject: [PATCH] overlays: Add pcie-32bit-dma overlay
-
-In order to accommodate full PCI DMA access to memory on newer BCM2711
-revisions, we're forced to map PCIe's view of physical memory with an
-offset. This offset makes DMA addressing dependent on having 64bit
-support on the PCI device's side. Which isn't always the case.
-
-In order to mitigate this, introduce the pcie-32bit-dma overlay which
-will forbid firmware from updating the default inbound memory window.
-The default setting, albeit limited to accessing the lower 3GB of
-memory, will allow for 32bit DMA addresses at the expense of having to
-bounce buffers.
-
-Link: https://github.com/raspberrypi/linux/issues/4197
-Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
----
- arch/arm/boot/dts/overlays/Makefile            |  1 +
- arch/arm/boot/dts/overlays/README              |  7 +++++++
- arch/arm/boot/dts/overlays/overlay_map.dts     |  4 ++++
- .../dts/overlays/pcie-32bit-dma-overlay.dts    | 18 ++++++++++++++++++
- 4 files changed, 30 insertions(+)
- create mode 100644 arch/arm/boot/dts/overlays/pcie-32bit-dma-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -128,6 +128,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
- 	ov9281.dtbo \
- 	papirus.dtbo \
- 	pca953x.dtbo \
-+	pcie-32bit-dma.dtbo \
- 	pibell.dtbo \
- 	pifacedigital.dtbo \
- 	pifi-40.dtbo \
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -2135,6 +2135,13 @@ Params: addr                    I2C addr
-         xra1202                 Select the Exar XRA1202 (8 bit)
- 
- 
-+Name:   pcie-32bit-dma
-+Info:   Force PCIe config to support 32bit DMA addresses at the expense of
-+        having to bounce buffers.
-+Load:   dtoverlay=pcie-32bit-dma
-+Params: <None>
-+
-+
- [ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
- 
- 
---- a/arch/arm/boot/dts/overlays/overlay_map.dts
-+++ b/arch/arm/boot/dts/overlays/overlay_map.dts
-@@ -37,6 +37,10 @@
- 		deprecated = "use gpio-ir";
- 	};
- 
-+	pcie-32bit-dma {
-+		bcm2711;
-+	};
-+
- 	pi3-act-led {
- 		renamed = "act-led";
- 	};
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/pcie-32bit-dma-overlay.dts
-@@ -0,0 +1,18 @@
-+/*
-+ * pcie-32bit-dma-overlay.dts
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+	compatible = "brcm,bcm2711";
-+
-+	fragment@0 {
-+		target-path = "/aliases";
-+		__overlay__ {
-+			pcie0 = "";
-+		};
-+	};
-+
-+};