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 <dannenb...@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 12319dcdeb..058b7dbbf7 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
@@ -79,3 +79,4 @@ CONFIG_DM_SERIAL=y
CONFIG_SOC_TI=y
CONFIG_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"
--
2.17.1
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