Part Number: TDA4VM
I found the below. I made the changes and rebuilt the linux sdk but neither the driver nor the entry in the dtb exist. Can someone tell me the process for this? Do i need to do a clean build to get this to work?
cd yocto-build ./oe-layertool-setup.sh -f configs/processor-sdk-linux/processor-sdk-linux-<version>.txt cd build echo "INHERIT += \"own-mirrors\"" >> conf/local.conf echo "SOURCE_MIRROR_URL = \"https://software-dl.ti.com/processor-sdk-mirror/sources/\"" >> conf/local.conf echo "ARAGO_BRAND = \"psdkla\"" >> conf/local.conf echo "DISTRO_FEATURES_append = \" virtualization\"" >> conf/local.conf echo "IMAGE_INSTALL_append = \" docker\"">> conf/local.conf . conf/setenv TOOLCHAIN_BASE=<PATH_TO_TOOLCHAIN> MACHINE=<machine> bitbake -k tisdk-default-image
CONFIG enabling. The driver supporting MCP79410 RTC is drivers/rtc/rtc-ds1307.c. CONFIG_RTC_DRV_DS1307 needs to be enabled. Add CONFIG_RTC_DRV_DS1307=y to arch/arm64/configs/tisdk_j7-evm_defconfig under linux folder. DTS changes as below: diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts index 6788a3611..9d642eb7a 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts @@ -593,6 +593,11 @@ #gpio-cells = <2>; }; + rtc@67 { + compatible = "microchip,mcp7941x"; + reg = <0x67>; + }; + exp2: gpio@22 { compatible = "ti,tca6424"; reg = <0x22>;
