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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0371-ARM-dts-bcm283x-Move-system-timer-back-to-bcm283x.dt.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0371-ARM-dts-bcm283x-Move-system-timer-back-to-bcm283x.dt.patch73
1 files changed, 73 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0371-ARM-dts-bcm283x-Move-system-timer-back-to-bcm283x.dt.patch b/target/linux/bcm27xx/patches-5.4/950-0371-ARM-dts-bcm283x-Move-system-timer-back-to-bcm283x.dt.patch
new file mode 100644
index 0000000000..3ececc8f92
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0371-ARM-dts-bcm283x-Move-system-timer-back-to-bcm283x.dt.patch
@@ -0,0 +1,73 @@
+From fcd4bc412167d2a79bf63603e883f4960ca6b2a1 Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <wahrenst@gmx.net>
+Date: Fri, 27 Dec 2019 11:15:00 +0100
+Subject: [PATCH] ARM: dts: bcm283x: Move system timer back to
+ bcm283x.dtsi
+
+During Raspberry Pi 4 upstream discussion Tim Gover confirmed that the
+system timer also exists on BCM2711. So move it back to bcm283x.dtsi and
+overwrite the interrupt definition in bcm2838.dtsi.
+
+Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
+---
+ arch/arm/boot/dts/bcm2835-common.dtsi | 11 -----------
+ arch/arm/boot/dts/bcm2838.dtsi | 7 +++++++
+ arch/arm/boot/dts/bcm283x.dtsi | 11 +++++++++++
+ 3 files changed, 18 insertions(+), 11 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2835-common.dtsi
++++ b/arch/arm/boot/dts/bcm2835-common.dtsi
+@@ -6,17 +6,6 @@
+
+ / {
+ soc {
+- timer@7e003000 {
+- compatible = "brcm,bcm2835-system-timer";
+- reg = <0x7e003000 0x1000>;
+- interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
+- /* This could be a reference to BCM2835_CLOCK_TIMER,
+- * but we don't have the driver using the common clock
+- * support yet.
+- */
+- clock-frequency = <1000000>;
+- };
+-
+ intc: interrupt-controller@7e00b200 {
+ compatible = "brcm,bcm2835-armctrl-ic";
+ reg = <0x7e00b200 0x200>;
+--- a/arch/arm/boot/dts/bcm2838.dtsi
++++ b/arch/arm/boot/dts/bcm2838.dtsi
+@@ -711,6 +711,13 @@
+ interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
++&system_timer {
++ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
++};
++
+ &uart0 {
+ interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+ };
+--- a/arch/arm/boot/dts/bcm283x.dtsi
++++ b/arch/arm/boot/dts/bcm283x.dtsi
+@@ -56,6 +56,17 @@
+ #address-cells = <1>;
+ #size-cells = <1>;
+
++ system_timer: timer@7e003000 {
++ compatible = "brcm,bcm2835-system-timer";
++ reg = <0x7e003000 0x1000>;
++ interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
++ /* This could be a reference to BCM2835_CLOCK_TIMER,
++ * but we don't have the driver using the common clock
++ * support yet.
++ */
++ clock-frequency = <1000000>;
++ };
++
+ txp: txp@7e004000 {
+ compatible = "brcm,bcm2835-txp";
+ reg = <0x7e004000 0x20>;