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arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable rtc

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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 <nmorrisson@phytec.com>
Link: https://lore.kernel.org/r/20240613230759.1984966-4-nmorrisson@phytec.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Nathan Morrisson 2024-06-13 16:07:58 -07:00 committed by Vignesh Raghavendra
parent 1322b1796d
commit a0b552605f
2 changed files with 20 additions and 0 deletions
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5
arch/arm64/boot/dts/ti/Makefile
View File

@ -59,6 +59,7 @@ 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 \
@ -121,6 +122,8 @@ k3-am625-phyboard-lyra-1-4-ghz-opp.dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am625-phyboard-lyra-1-4-ghz-opp.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 \
@ -150,6 +153,8 @@ k3-am642-evm-icssg1-dualemac-mii-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac-mii.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-phyboard-electra-pcie-usb2-dtbs := \

15
arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso Normal file
View File

@ -0,0 +1,15 @@
// SPDX-License-Identifier: GPL-2.0-only OR MIT
/*
* Copyright (C) 2023 PHYTEC America, LLC
* Author: Garrett Giordano <ggiordano@phytec.com>
*
* Copyright (C) 2024 PHYTEC America, LLC
* Author: Nathan Morrisson <nmorrisson@phytec.com>
*/
/dts-v1/;
/plugin/;
&i2c_som_rtc {
status = "disabled";
};