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Message-ID: <20241030114458.1358800-1-danishanwar@ti.com>
Date: Wed, 30 Oct 2024 17:14:58 +0530
From: MD Danish Anwar <danishanwar@...com>
To: <vigneshr@...com>, <nm@...com>
CC: <conor+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
<robh+dt@...nel.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
<kristo@...nel.org>, <srk@...com>, Roger Quadros <rogerq@...nel.org>,
<danishanwar@...com>
Subject: [PATCH] arm64: dts: ti: k3-am642-evm: Add dt overlay to disable icssg for Linux
Add k3-am642-evm-icssg1-disable.dtso overlay file that disables
icssg1-eth from Linux so that icssg peripherals can be used by
RTOS or some other OS running on R5 core.
Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
arch/arm64/boot/dts/ti/Makefile | 7 +--
.../dts/ti/k3-am642-evm-icssg1-disable.dtso | 49 +++++++++++++++++++
2 files changed, 53 insertions(+), 3 deletions(-)
create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-disable.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 6bd06bd76b68..0fd95b7df5a8 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -76,6 +76,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-nand.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac-mii.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-disable.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-pcie0-ep.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
@@ -235,8 +236,8 @@ k3-am62p5-sk-microtips-mf103hie-lcd2-dtbs := k3-am62p5-sk.dtb \
k3-am62p5-sk-microtips-mf103hie-lcd2.dtbo
k3-am642-evm-icssg1-dualemac-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo
-k3-am642-evm-icssg1-dualemac-mii-dtbs := \
- k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac-mii.dtbo
+k3-am642-evm-icssg1-disable-dtbs := \
+ k3-am642-evm.dtb k3-am642-evm-icssg1-disable.dtbo
k3-am642-evm-pcie0-ep-dtbs := \
k3-am642-evm.dtb k3-am642-evm-pcie0-ep.dtbo
k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
@@ -323,7 +324,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
k3-am62p5-sk-microtips-mf101hie-panel.dtb \
k3-am62p5-sk-microtips-mf103hie-lcd2.dtb \
k3-am642-evm-icssg1-dualemac.dtb \
- k3-am642-evm-icssg1-dualemac-mii.dtb \
+ k3-am642-evm-icssg1-disable.dtb \
k3-am642-evm-pcie0-ep.dtb \
k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \
k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-disable.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-disable.dtso
new file mode 100644
index 000000000000..dc04e2999e97
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-disable.dtso
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * DT overlay for enabling 2nd ICSSG1 port on AM642 EVM
+ *
+ * Copyright (C) 2020-2024 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "k3-pinctrl.h"
+
+&oc_sram {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ r5f0_0_sram: r5f0_0_sram@0 {
+ reg = <0x0 0x180000>;
+ };
+};
+
+&main_r5fss0_core0 {
+ sram = <&r5f0_0_sram>;
+};
+
+&cpsw_port2 {
+ status = "disabled";
+};
+
+&icssg0 {
+ status = "disabled";
+};
+
+&icssg1 {
+ status = "disabled";
+};
+
+&ospi0 {
+ status = "disabled";
+};
+
+&mdio_mux_1 {
+ status = "disabled";
+};
+
+&icssg1_eth {
+ status = "disabled";
+};
--
2.34.1
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