This is a note to let you know that I've just added the patch titled
arm64: dts: ti: k3-am62p-mcu/wakeup: Disable MCU and wakeup R5FSS nodes
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-ti-k3-am62p-mcu-wakeup-disable-mcu-and-wak.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit cbfcbefb23136db0359553587de25ee991482de9
Author: Vaishnav Achath <vaishnav.a@xxxxxx>
Date: Sun Jan 21 19:10:17 2024 +0530
arm64: dts: ti: k3-am62p-mcu/wakeup: Disable MCU and wakeup R5FSS nodes
[ Upstream commit dfc90e5f1a0fe0f8124521bc1911e38aa6cd9118 ]
K3 Remoteproc R5 driver requires reserved memory carveouts and
mailbox configuration to instantiate the cores successfully.
Since this is a board level dependency, keep the R5 subsytem
disabled at SoC dtsi, otherwise it results in probe errors like
below during AM62P SK boot:
r5fss@79000000: reserved memory init failed, ret = -22
r5fss@79000000: k3_r5_cluster_rproc_init failed, ret = -22
r5fss@78000000: reserved memory init failed, ret = -22
r5fss@78000000: k3_r5_cluster_rproc_init failed, ret = -22
Fixes: b5080c7c1f7e ("arm64: dts: ti: k3-am62p: Add nodes for more IPs")
Signed-off-by: Vaishnav Achath <vaishnav.a@xxxxxx>
Reviewed-by: Jayesh Choudhary <j-choudhary@xxxxxx>
Reviewed-by: Nishanth Menon <nm@xxxxxx>
Link: https://lore.kernel.org/r/20240121134017.374992-1-vaishnav.a@xxxxxx
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi
index c4b0b91d70cf3..14eb9ba836d32 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi
@@ -187,6 +187,8 @@ mcu_r5fss0: r5fss@79000000 {
ranges = <0x79000000 0x00 0x79000000 0x8000>,
<0x79020000 0x00 0x79020000 0x8000>;
power-domains = <&k3_pds 7 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
+
mcu_r5fss0_core0: r5f@79000000 {
compatible = "ti,am62-r5f";
reg = <0x79000000 0x00008000>,
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
index 19f42b39394ee..10a7059b2d9b5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
@@ -78,6 +78,7 @@ wkup_r5fss0: r5fss@78000000 {
ranges = <0x78000000 0x00 0x78000000 0x8000>,
<0x78100000 0x00 0x78100000 0x8000>;
power-domains = <&k3_pds 119 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
wkup_r5fss0_core0: r5f@78000000 {
compatible = "ti,am62-r5f";
