Build Shikra firmware and OS images for SD card

Use this workflow to build Shikra (shikra-evk) images with the SD-card partition layout. The generated flash artifacts include the firmware, boot, ESP, and rootfs images needed for SD-card media.

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Prerequisites

• Set up the Yocto build host and install kas. For more information, see Build Qualcomm Linux using Yocto.
• Select the meta-qcom release tag that you want to build.

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Procedure

1. Clone the selected meta-qcom release:
   git clone https://github.com/qualcomm-linux/meta-qcom -b <meta-qcom-release-tag>
   
2. If the selected meta-qcom release tag does not already include the Shikra SD-card partition configuration from qcom-ptool, update meta-qcom/recipes-bsp/partition/qcom-ptool.inc to use a qcom-ptool revision that contains it:
   HOMEPAGE = "https://github.com/qualcomm-linux/qcom-ptool"
   LICENSE = "BSD-3-Clause"
   LIC_FILES_CHKSUM = "file://LICENSE;md5=b0a8acd90d872086b279ead88af03369"
   
   SRC_URI = "git://github.com/ArunSahu418/qcom-ptool.git;branch=add-shikra-sdcard-partitions;protocol=https"
   SRCREV = "46b8264a74d4ad307f00ef7a62117c461f918f8b"
   
3. In meta-qcom/conf/machine/shikra-evk.conf, change the partition files subdirectory from the eMMC layout to the SD-card layout. Replace:
   QCOM_PARTITION_FILES_SUBDIR ?= "partitions/shikra-evk/emmc"
   
   With:
   QCOM_PARTITION_FILES_SUBDIR ?= "partitions/shikra-evk/sdcard"
   
4. Build the Shikra image:
   kas build meta-qcom/ci/shikra-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/performance.yml
   

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Result

The build generates Shikra flash artifacts using the SD-card partition layout. Use those generated artifacts when preparing SD-card media for Shikra.

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Related topics

• Build Qualcomm Linux using Yocto
• Manage partitions in Qualcomm Linux
• Configure the storage type for Yocto BSP build