bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)

1 files changed, 31 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0655-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch b/target/linux/bcm27xx/patches-5.4/950-0655-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch
new file mode 100644
index 0000000000..4c5e50636c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0655-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch
@@ -0,0 +1,31 @@
+From 4f2da50bb75ec7b74a23e119062d945626398e30 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 20 Apr 2020 11:25:18 +0100
+Subject: [PATCH] dts: bcm2711: EMMC2 can address the whole first GB
+
+Although 0xfc000000 looks like an inaccessible RAM address (due to the
+peripheral mappings), with RAM mapped at 0xc0000000 (as it is on the
+30/32-bit VPU bus) this is actually 0x3c000000 in the ARM memory space,
+which is fine.
+
+This difference is potentially the cause of some warnings seen in
+sdhci_send_command.
+
+Fixes: "dts: bcm2711: Move emmc2 to its own 'bus'"
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -223,7 +223,7 @@
+ 		#size-cells = <1>;
+ 
+ 		ranges = <0x0 0x7e000000  0x0 0xfe000000  0x01800000>;
+-		dma-ranges = <0x0 0xc0000000  0x0 0x00000000  0x3c000000>;
++		dma-ranges = <0x0 0xc0000000  0x0 0x00000000  0x40000000>;
+ 
+ 		emmc2: emmc2@7e340000 {
+ 			compatible = "brcm,bcm2711-emmc2";