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-rw-r--r-- | meta-xilinx/meta-xilinx-bsp/README.building.md | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/README.building.md b/meta-xilinx/meta-xilinx-bsp/README.building.md index 54d61c3d4d..b127db3637 100644 --- a/meta-xilinx/meta-xilinx-bsp/README.building.md +++ b/meta-xilinx/meta-xilinx-bsp/README.building.md @@ -32,6 +32,27 @@ Build the target file system image using `bitbake`: Once complete the images for the target machine will be available in the output directory `tmp/deploy/images/<machine name>/`. +Using SPL flow to build ZU+ +------------------------------ + +The pmufw needs a "configuration object" to know what it should do, and it +expects to receive it at runtime. + +With the U-Boot SPL workflow there's no FSBL, and passing a cfg obj to pmufw is +just not implemented in U-Boot + +To work around this problem a small patch has been developed so that +pm_cfg_obj.c is linked into pmufw and loaded directly, without waiting for it +from the outside. Find the original patch on the meta-topic layer [1] and the +patch updated for pmufw 2018.x here [2]. + +[1] +https://github.com/topic-embedded-products/meta-topic/blob/master/recipes-bsp/pmu-firmware/pmu-firmware_2017.%25.bbappend + +[2] +https://github.com/lucaceresoli/zynqmp-pmufw-builder/blob/master/0001-Load-XPm_ConfigObject-at-boot.patch + + Using multiconfig to build ZU+ ------------------------------ @@ -62,6 +83,7 @@ Workaround: There is additional workaround required in u-boot-xlnx recipe. Add the below dependency do_compile[mcdepends] = "multiconfig:zcu102:pmu:pmu-firmware:do_deploy" + Additional Information ---------------------- |