2024-06-13 23:09:53

by Nathan Morrisson

[permalink] [raw]
Subject: [PATCH v3 0/4] Add overlays to disable optional hardware in k3-am6xx-phycore-som boards

Add three overlays to disable the eth phy, rtc, and spi nor. These
overlays will be used to disable device tree nodes for components
that are optionally not populated.

v3:
- Explain the logic behind adding the overlays in commit messages

v2:
- Add build time tests in makefile

Nathan Morrisson (4):
arm64: dts: ti: k3-am64-phycore-som: Add serial_flash label
arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable eth phy
arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable rtc
arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable spi nor

arch/arm64/boot/dts/ti/Makefile | 17 +++++++++++++++++
.../boot/dts/ti/k3-am64-phycore-som.dtsi | 2 +-
.../ti/k3-am6xx-phycore-disable-eth-phy.dtso | 19 +++++++++++++++++++
.../dts/ti/k3-am6xx-phycore-disable-rtc.dtso | 15 +++++++++++++++
.../ti/k3-am6xx-phycore-disable-spi-nor.dtso | 15 +++++++++++++++
5 files changed, 67 insertions(+), 1 deletion(-)
create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso
create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso
create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-spi-nor.dtso

--
2.25.1



2024-06-13 23:10:14

by Nathan Morrisson

[permalink] [raw]
Subject: [PATCH v3 3/4] arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable rtc

Add an overlay to disable the rtc for all am6xx-phycore-som boards.
The EEPROM on am6xx-phycore-soms contains information about the
configuration of the SOM. The standard configuration of the SOM
has an rtc, but if no rtc is populated, the EEPROM will indicate that
change and we can use this overlay to cleanly disable the rtc.

Signed-off-by: Nathan Morrisson <[email protected]>
---
v3:
- Explain why we are adding the overlay in the commit message

v2:
- Add build time tests in makefile

arch/arm64/boot/dts/ti/Makefile | 5 +++++
.../boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso | 15 +++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 320da5ea38e0..3d0e87a78e09 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -56,6 +56,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo

# Common overlays for the phyCORE-AM6* family of boards
dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-eth-phy.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-rtc.dtbo

# Boards with AM65x SoC
k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb \
@@ -112,6 +113,8 @@ k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
k3-am625-phyboard-lyra-disable-eth-phy-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am6xx-phycore-disable-eth-phy.dtbo
+k3-am625-phyboard-lyra-disable-rtc-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
+ k3-am6xx-phycore-disable-rtc.dtbo
k3-am625-phyboard-lyra-gpio-fan-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am62x-phyboard-lyra-gpio-fan.dtbo
k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
@@ -139,6 +142,8 @@ k3-am642-evm-icssg1-dualemac-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo
k3-am642-phyboard-electra-disable-eth-phy-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-eth-phy.dtbo
+k3-am642-phyboard-electra-disable-rtc-dtbs := \
+ k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-rtc.dtbo
k3-am642-phyboard-electra-gpio-fan-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
diff --git a/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso
new file mode 100644
index 000000000000..8b24191f5948
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2023 PHYTEC America, LLC
+ * Author: Garrett Giordano <[email protected]>
+ *
+ * Copyright (C) 2024 PHYTEC America, LLC
+ * Author: Nathan Morrisson <[email protected]>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&i2c_som_rtc {
+ status = "disabled";
+};
--
2.25.1


2024-06-13 23:10:14

by Nathan Morrisson

[permalink] [raw]
Subject: [PATCH v3 2/4] arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable eth phy

Add an overlay to disable the eth phy for all am6xx-phycore-som
boards.
The EEPROM on am6xx-phycore-soms contains information about the
configuration of the SOM. The standard configuration of the SOM
has an ethernet phy, but if no ethernet phy is populated, the EEPROM
will indicate that change and we can use this overlay to cleanly
disable the ethernet phy.

Signed-off-by: Nathan Morrisson <[email protected]>
---
v3:
- Explain why we are adding the overlay in the commit message

v2:
- Add build time tests in makefile

arch/arm64/boot/dts/ti/Makefile | 7 +++++++
.../ti/k3-am6xx-phycore-disable-eth-phy.dtso | 19 +++++++++++++++++++
2 files changed, 26 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 2c327cc320cf..320da5ea38e0 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -54,6 +54,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo

+# Common overlays for the phyCORE-AM6* family of boards
+dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-eth-phy.dtbo
+
# Boards with AM65x SoC
k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb \
k3-am654-base-board-rocktech-rk101-panel.dtbo \
@@ -107,6 +110,8 @@ k3-am625-beagleplay-csi2-ov5640-dtbs := k3-am625-beagleplay.dtb \
k3-am625-beagleplay-csi2-ov5640.dtbo
k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
+k3-am625-phyboard-lyra-disable-eth-phy-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
+ k3-am6xx-phycore-disable-eth-phy.dtbo
k3-am625-phyboard-lyra-gpio-fan-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am62x-phyboard-lyra-gpio-fan.dtbo
k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
@@ -132,6 +137,8 @@ k3-am62p5-sk-csi2-tevi-ov5640-dtbs := k3-am62p5-sk.dtb \
k3-am62x-sk-csi2-tevi-ov5640.dtbo
k3-am642-evm-icssg1-dualemac-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo
+k3-am642-phyboard-electra-disable-eth-phy-dtbs := \
+ k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-eth-phy.dtbo
k3-am642-phyboard-electra-gpio-fan-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
diff --git a/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso
new file mode 100644
index 000000000000..356c82bbe143
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2023 PHYTEC America, LLC
+ * Author: Garrett Giordano <[email protected]>
+ *
+ * Copyright (C) 2024 PHYTEC America, LLC
+ * Author: Nathan Morrisson <[email protected]>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&cpsw3g_phy1 {
+ status = "disabled";
+};
+
+&cpsw_port1 {
+ status = "disabled";
+};
--
2.25.1


2024-06-13 23:10:27

by Nathan Morrisson

[permalink] [raw]
Subject: [PATCH v3 4/4] arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable spi nor

Add an overlay to disable the spi nor for all am6xx-phycore-som
boards.
The EEPROM on am6xx-phycore-soms contains information about the
configuration of the SOM. The standard configuration of the SOM
has an ospi nor, but if no nor is populated, the EEPROM will indicate
that change and we can use this overlay to cleanly disable the
spi nor.

Signed-off-by: Nathan Morrisson <[email protected]>
---
v3:
- Explain why we are adding the overlay in the commit message

v2:
- Add build time tests in makefile

arch/arm64/boot/dts/ti/Makefile | 5 +++++
.../dts/ti/k3-am6xx-phycore-disable-spi-nor.dtso | 15 +++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-spi-nor.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 3d0e87a78e09..8d8fc8bfaf7e 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -57,6 +57,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo
# Common overlays for the phyCORE-AM6* family of boards
dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-eth-phy.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-rtc.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-spi-nor.dtbo

# Boards with AM65x SoC
k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb \
@@ -115,6 +116,8 @@ k3-am625-phyboard-lyra-disable-eth-phy-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am6xx-phycore-disable-eth-phy.dtbo
k3-am625-phyboard-lyra-disable-rtc-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am6xx-phycore-disable-rtc.dtbo
+k3-am625-phyboard-lyra-disable-spi-nor-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
+ k3-am6xx-phycore-disable-spi-nor.dtbo
k3-am625-phyboard-lyra-gpio-fan-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am62x-phyboard-lyra-gpio-fan.dtbo
k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
@@ -144,6 +147,8 @@ k3-am642-phyboard-electra-disable-eth-phy-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-eth-phy.dtbo
k3-am642-phyboard-electra-disable-rtc-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-rtc.dtbo
+k3-am642-phyboard-electra-disable-spi-nor-dtbs := \
+ k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-spi-nor.dtbo
k3-am642-phyboard-electra-gpio-fan-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
diff --git a/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-spi-nor.dtso b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-spi-nor.dtso
new file mode 100644
index 000000000000..cc0cf269b6e4
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-spi-nor.dtso
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2023 PHYTEC America, LLC
+ * Author: Garrett Giordano <[email protected]>
+ *
+ * Copyright (C) 2024 PHYTEC America, LLC
+ * Author: Nathan Morrisson <[email protected]>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&serial_flash {
+ status = "disabled";
+};
--
2.25.1