board/freescale/common/imx: add support for i.MX8M Nano

Almost identical as i.MX8M Mini, here are the differences:
- different ATF load address [1]
- different entry point [2]
- different ROM version (v2) [3]

[1] https://gitlab.denx.de/u-boot/u-boot/-/blob/v2020.04/board/freescale/imx8mn_evk/README
[2] https://gitlab.denx.de/u-boot/u-boot/-/blob/v2020.04/configs/imx8mn_ddr4_evk_defconfig#L22
[3] https://gitlab.denx.de/u-boot/u-boot/-/commit/b8f16834

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/board/freescale/common/imx/imx8-bootloader-prepare.sh b/board/freescale/common/imx/imx8-bootloader-prepare.sh
index 45c648e3604199c19b6ff3637bf3331a78971929..abf2e43de8c8c07c522b9fa70bef03d6e811dc99 100755 (executable)
--- a/board/freescale/common/imx/imx8-bootloader-prepare.sh
+++ b/board/freescale/common/imx/imx8-bootloader-prepare.sh
@@ -22,6 +22,13 @@ main ()
                rm -f ${BINARIES_DIR}/u-boot.its
 
                ${HOST_DIR}/bin/mkimage_imx8 -fit -loader ${BINARIES_DIR}/u-boot-spl-ddr.bin 0x7E1000 -second_loader ${BINARIES_DIR}/u-boot.itb 0x40200000 0x60000 -out ${BINARIES_DIR}/imx8-boot-sd.bin
+       elif grep -Eq "^BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8MN=y$" ${BR2_CONFIG}; then
+               cat ${BINARIES_DIR}/u-boot-spl.bin ${BINARIES_DIR}/lpddr4_pmu_train_fw.bin > ${BINARIES_DIR}/u-boot-spl-ddr.bin
+               BL31=${BINARIES_DIR}/bl31.bin BL33=${BINARIES_DIR}/u-boot-nodtb.bin ATF_LOAD_ADDR=0x00960000 ${HOST_DIR}/bin/mkimage_fit_atf.sh ${UBOOT_DTB} > ${BINARIES_DIR}/u-boot.its
+               ${HOST_DIR}/bin/mkimage -E -p 0x3000 -f ${BINARIES_DIR}/u-boot.its ${BINARIES_DIR}/u-boot.itb
+               rm -f ${BINARIES_DIR}/u-boot.its
+
+               ${HOST_DIR}/bin/mkimage_imx8 -v v2 -fit -loader ${BINARIES_DIR}/u-boot-spl-ddr.bin 0x912000 -second_loader ${BINARIES_DIR}/u-boot.itb 0x40200000 0x60000 -out ${BINARIES_DIR}/imx8-boot-sd.bin
        else
                ${HOST_DIR}/bin/mkimage_imx8 -commit > ${BINARIES_DIR}/mkimg.commit
                cat ${BINARIES_DIR}/u-boot.bin ${BINARIES_DIR}/mkimg.commit > ${BINARIES_DIR}/u-boot-hash.bin