tools: imx8m_image: Support ddr3 firmware

Some boards use ddr3, not ddr4, so we need to check ddr3 firmware.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>

diff --git a/tools/imx8m_image.sh b/tools/imx8m_image.sh
index ba60104..4ab3116 100755 (executable)
--- a/tools/imx8m_image.sh
+++ b/tools/imx8m_image.sh
@@ -41,6 +41,13 @@ if [ $post_process = 1 ]; then
                cat spl/u-boot-spl-pad.bin ddr4_1d_fw.bin ddr4_2d_fw.bin > spl/u-boot-spl-ddr.bin
                rm -f ddr4_1d_fw.bin ddr4_2d_fw.bin ddr4_imem_1d_pad.bin ddr4_dmem_1d_pad.bin ddr4_imem_2d_pad.bin spl/u-boot-spl-pad.bin
        fi
+       if [ -f ddr3_imem_1d.bin ]; then
+               objcopy -I binary -O binary --pad-to 0x8000 --gap-fill=0x0 ddr3_imem_1d.bin ddr3_imem_1d_pad.bin
+               cat ddr3_imem_1d_pad.bin ddr3_dmem_1d.bin > ddr3_1d_fw.bin
+               dd if=spl/u-boot-spl.bin of=spl/u-boot-spl-pad.bin bs=4 conv=sync
+               cat spl/u-boot-spl-pad.bin ddr3_1d_fw.bin > spl/u-boot-spl-ddr.bin
+               rm -f ddr3_1d_fw.bin ddr3_imem_1d_pad.bin spl/u-boot-spl-pad.bin
+       fi
 fi
 
 exit 0