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https://github.com/brain-hackers/u-boot-brain
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![]() Change is consistent with other SOCs and it is in preparation for adding SOMs. SOC's related files are moved from cpu/ to mach-imx/<SOC>. This change is also coherent with the structure in kernel. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Fabio Estevam <fabio.estevam@nxp.com> CC: Akshay Bhat <akshaybhat@timesys.com> CC: Ken Lin <Ken.Lin@advantech.com.tw> CC: Marek Vasut <marek.vasut@gmail.com> CC: Heiko Schocher <hs@denx.de> CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com> CC: Christian Gmeiner <christian.gmeiner@gmail.com> CC: Stefan Roese <sr@denx.de> CC: Patrick Bruenn <p.bruenn@beckhoff.com> CC: Troy Kisky <troy.kisky@boundarydevices.com> CC: Nikita Kiryanov <nikita@compulab.co.il> CC: Otavio Salvador <otavio@ossystems.com.br> CC: "Eric Bénard" <eric@eukrea.com> CC: Jagan Teki <jagan@amarulasolutions.com> CC: Ye Li <ye.li@nxp.com> CC: Peng Fan <peng.fan@nxp.com> CC: Adrian Alonso <adrian.alonso@nxp.com> CC: Alison Wang <b18965@freescale.com> CC: Tim Harvey <tharvey@gateworks.com> CC: Martin Donnelly <martin.donnelly@ge.com> CC: Marcin Niestroj <m.niestroj@grinn-global.com> CC: Lukasz Majewski <lukma@denx.de> CC: Adam Ford <aford173@gmail.com> CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr> CC: Boris Brezillon <boris.brezillon@free-electrons.com> CC: Soeren Moch <smoch@web.de> CC: Richard Hu <richard.hu@technexion.com> CC: Wig Cheng <wig.cheng@technexion.com> CC: Vanessa Maegima <vanessa.maegima@nxp.com> CC: Max Krummenacher <max.krummenacher@toradex.com> CC: Stefan Agner <stefan.agner@toradex.com> CC: Markus Niebel <Markus.Niebel@tq-group.com> CC: Breno Lima <breno.lima@nxp.com> CC: Francesco Montefoschi <francesco.montefoschi@udoo.org> CC: Jaehoon Chung <jh80.chung@samsung.com> CC: Scott Wood <oss@buserror.net> CC: Joe Hershberger <joe.hershberger@ni.com> CC: Anatolij Gustschin <agust@denx.de> CC: Simon Glass <sjg@chromium.org> CC: "Andrew F. Davis" <afd@ti.com> CC: "Łukasz Majewski" <l.majewski@samsung.com> CC: Patrice Chotard <patrice.chotard@st.com> CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> CC: Hans de Goede <hdegoede@redhat.com> CC: Masahiro Yamada <yamada.masahiro@socionext.com> CC: Stephen Warren <swarren@nvidia.com> CC: Andre Przywara <andre.przywara@arm.com> CC: "Álvaro Fernández Rojas" <noltari@gmail.com> CC: York Sun <york.sun@nxp.com> CC: Xiaoliang Yang <xiaoliang.yang@nxp.com> CC: Chen-Yu Tsai <wens@csie.org> CC: George McCollister <george.mccollister@gmail.com> CC: Sven Ebenfeld <sven.ebenfeld@gmail.com> CC: Filip Brozovic <fbrozovic@gmail.com> CC: Petr Kulhavy <brain@jikos.cz> CC: Eric Nelson <eric@nelint.com> CC: Bai Ping <ping.bai@nxp.com> CC: Anson Huang <Anson.Huang@nxp.com> CC: Sanchayan Maity <maitysanchayan@gmail.com> CC: Lokesh Vutla <lokeshvutla@ti.com> CC: Patrick Delaunay <patrick.delaunay@st.com> CC: Gary Bisson <gary.bisson@boundarydevices.com> CC: Alexander Graf <agraf@suse.de> CC: u-boot@lists.denx.de Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com> |
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.. | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
mx6sabresd.c | ||
README |
How to use and build U-Boot on mx6sabresd ----------------------------------------- The following methods can be used for booting mx6sabresd boards: 1. Booting from SD card 2. Booting from eMMC 3. Booting via Falcon mode (SPL launches the kernel directly) 1. Booting from SD card via SPL ------------------------------- mx6sabresd_defconfig target supports mx6q/mx6dl/mx6qp sabresd variants. In order to build it: $ make mx6sabresd_defconfig $ make This will generate the SPL and u-boot.img binaries. - Flash the SPL binary into the SD card: $ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 && sync - Flash the u-boot.img binary into the SD card: $ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 && sync 2. Booting from eMMC -------------------- $ make mx6sabresd_defconfig $ make This will generate the SPL and u-boot.img binaries. - Boot first from SD card as shown in the previous section In U-boot change the eMMC partition config: => mmc partconf 2 1 0 0 Mount the eMMC in the host PC: => ums 0 mmc 2 - Flash SPL and u-boot.img binaries into the eMMC: $ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 && sync $ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 && sync Set SW6 to eMMC 8-bit boot: 11010110 3. Booting via Falcon mode -------------------------- $ make mx6sabresd_defconfig $ make This will generate the SPL image called SPL and the u-boot.img. - Flash the SPL image into the SD card: $ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 oflag=sync status=none && sync - Flash the u-boot.img image into the SD card: $ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 oflag=sync status=none && sync Create a partition for root file system and extract it there: $ sudo tar xvf rootfs.tar.gz -C /media/root The SD card must have enough space for raw "args" and "kernel". To configure Falcon mode for the first time, on U-Boot do the following commands: - Setup the IP server: # setenv serverip <server_ip_address> - Download dtb file: # dhcp ${fdt_addr} imx6q-sabresd.dtb - Download kernel image: # dhcp ${loadaddr} uImage - Write kernel at 2MB offset: # mmc write ${loadaddr} 0x1000 0x4000 - Setup kernel bootargs: # setenv bootargs "console=ttymxc0,115200 root=/dev/mmcblk1p1 rootfstype=ext4 rootwait quiet rw" - Prepare args: # spl export fdt ${loadaddr} - ${fdt_addr} - Write args 1MB data (0x800 sectors) to 1MB offset (0x800 sectors) # mmc write 18000000 0x800 0x800 - Press KEY_VOL_UP key, power up the board and then SPL binary will launch the kernel directly.