2711: Add basic 64-bit support

Phil Elwell · popcornmix · commit cdb78ce891f6 · 2019-06-13T11:54:33.000+01:00
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 &lt;phil@raspberrypi.org&gt;
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb \
 			      bcm2837-rpi-3-b-plus.dtb
 dtb-$(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
diff --git a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts 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"
diff --git a/arch/arm64/configs/bcm2711_defconfig b/arch/arm64/configs/bcm2711_defconfig

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+#define RPI364`
	`2`	`+`
	`3`	`+#include "../../../../arm/boot/dts/bcm2711-rpi-4-b.dts"`