On 10/30/24 6:44 AM, MD Danish Anwar wrote:
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.
That was the point of putting icssg1-eth in its own overlay, if you don't want to use ICSSG1 for Ethernet, just don't apply k3-am642-evm-icssg1-dualemac.dtbo. Andrew
Signed-off-by: MD Danish Anwar <danishanwar@xxxxxx> --- 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"; +};
