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-rw-r--r--target/linux/bcm27xx/patches-4.19/950-0562-2711-Add-basic-64-bit-support.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0562-2711-Add-basic-64-bit-support.patch b/target/linux/bcm27xx/patches-4.19/950-0562-2711-Add-basic-64-bit-support.patch
new file mode 100644
index 0000000000..892914befa
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0562-2711-Add-basic-64-bit-support.patch
@@ -0,0 +1,33 @@
+From 0e7db01b8ce2c2fb5596e7a9b7104e9947e5c269 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 8 Mar 2019 21:12:39 +0000
+Subject: [PATCH] 2711: Add basic 64-bit support
+
+This commit adds initial support for 64-bit 2711 builds. However,
+it will only work as much as it does if the Pi4 RAM is limited to
+1GB - more than that and several things break (SD card, coherent
+allocations, etc.)
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm64/boot/dts/broadcom/Makefile | 1 +
+ .../boot/dts/broadcom/bcm2711-rpi-4-b.dts | 3 +
+ 3 files changed, 1295 insertions(+)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rp
+ bcm2837-rpi-3-b-plus.dtb
+ dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
+ dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-cm3.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm3.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+@@ -0,0 +1,3 @@
++#define RPI364
++
++#include "../../../../arm/boot/dts/bcm2711-rpi-4-b.dts"