This will allow for downloading and applying overlays from an MMC/SD boot media based on the overlay_files ENV variable containing a list of overlay files.
Signed-off-by: Andreas Dannenberg dannenberg@ti.com Reviewed-by: Lokesh Vutla lokeshvutla@ti.com --- configs/am65x_evm_a53_defconfig | 3 ++- include/configs/am65x_evm.h | 9 +++++++++ 2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/configs/am65x_evm_a53_defconfig b/configs/am65x_evm_a53_defconfig index 2aa54706a0..e9a008d64f 100644 --- a/configs/am65x_evm_a53_defconfig +++ b/configs/am65x_evm_a53_defconfig @@ -16,7 +16,7 @@ CONFIG_DISTRO_DEFAULTS=y # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set CONFIG_SPL_LOAD_FIT=y CONFIG_OF_BOARD_SETUP=y -CONFIG_BOOTCOMMAND="run findfdt; run envboot; run init_${boot}; run get_kern_${boot}; run get_fdt_${boot}; run run_kern" +CONFIG_BOOTCOMMAND="run findfdt; run envboot; run init_${boot}; run get_kern_${boot}; run get_fdt_${boot}; run get_overlay_${boot}; run run_kern" # CONFIG_DISPLAY_CPUINFO is not set CONFIG_SPL_TEXT_BASE=0x80080000 CONFIG_SPL_SYS_MALLOC_SIMPLE=y @@ -80,3 +80,4 @@ CONFIG_SOC_TI=y CONFIG_SYSRESET=y CONFIG_SPL_SYSRESET=y CONFIG_SYSRESET_TI_SCI=y +CONFIG_OF_LIBFDT_OVERLAY=y diff --git a/include/configs/am65x_evm.h b/include/configs/am65x_evm.h index 7e3d6a3b8f..e3dbcce0bf 100644 --- a/include/configs/am65x_evm.h +++ b/include/configs/am65x_evm.h @@ -42,6 +42,7 @@ "setenv overlay_files ${name_overlays}\0" \ "loadaddr=0x80080000\0" \ "fdtaddr=0x82000000\0" \ + "overlayaddr=0x83000000\0" \ "name_kern=Image\0" \ "console=ttyS2,115200n8\0" \ "args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000\0" \ @@ -56,6 +57,14 @@ "rd_spec=-\0" \ "init_mmc=run args_all args_mmc\0" \ "get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0" \ + "get_overlay_mmc=" \ + "fdt address ${fdtaddr};" \ + "fdt resize 0x100000;" \ + "for overlay in $overlay_files;" \ + "do;" \ + "load mmc ${bootpart} ${overlayaddr} ${bootdir}/${overlay};" \ + "fdt apply ${overlayaddr};" \ + "done;\0" \ "get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \ "${bootdir}/${name_kern}\0"