diff options
Diffstat (limited to 'meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-uenv.bb')
| -rw-r--r-- | meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-uenv.bb | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-uenv.bb b/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-uenv.bb new file mode 100644 index 00000000..228396eb --- /dev/null +++ b/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-uenv.bb @@ -0,0 +1,111 @@ +SUMMARY = "U-Boot uEnv.txt SD boot environment generation for Zynq targets" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" + +INHIBIT_DEFAULT_DEPS = "1" + +COMPATIBLE_MACHINE = "^$" +COMPATIBLE_MACHINE:zynq = ".*" +COMPATIBLE_MACHINE:zynqmp = ".*" + +PACKAGE_ARCH = "${MACHINE_ARCH}" + +inherit deploy image-wic-utils + +def remove_task_from_depends(d): + extra_imagedepends = d.getVar('EXTRA_IMAGEDEPENDS') or '' + uenv_depends = '' + for imagedepend in extra_imagedepends.split(): + if imagedepend == d.getVar("BPN"): + continue + elif ':' in imagedepend: + uenv_depends += ' %s' % imagedepend.split(':')[0] + else: + uenv_depends += ' %s' % imagedepend + return uenv_depends + +def uboot_boot_cmd(d): + if d.getVar("KERNEL_IMAGETYPE") in ["uImage", "fitImage"]: + return "bootm" + if d.getVar("KERNEL_IMAGETYPE") in ["zImage"]: + return "bootz" + if d.getVar("KERNEL_IMAGETYPE") in ["Image"]: + return "booti" + raise bb.parse.SkipRecipe("Unsupport kernel image type") + +def get_sdbootdev(d): + if d.getVar("SOC_FAMILY") in ["zynqmp"]: + return "${devnum}" + else: + return "0" + +def uenv_populate(d): + # populate the environment values + env = {} + + env["machine_name"] = d.getVar("MACHINE") + + env["kernel_image"] = d.getVar("KERNEL_IMAGETYPE") + env["kernel_load_address"] = d.getVar("KERNEL_LOAD_ADDRESS") + + env["devicetree_image"] = boot_files_dtb_filepath(d) + env["devicetree_load_address"] = d.getVar("DEVICETREE_LOAD_ADDRESS") + env["devicetree_overlay_load_address" ] = d.getVar("DEVICETREE_OVERLAY_LOAD_ADDRESS") + + env["bootargs"] = d.getVar("KERNEL_BOOTARGS") + + env["loadkernel"] = "fatload mmc " + get_sdbootdev(d) + " ${kernel_load_address} ${kernel_image}" + env["loaddtb"] = "fatload mmc " + get_sdbootdev(d) + " ${devicetree_load_address} ${devicetree_image}" + env["loaddtbo"] = "if test -e mmc " + get_sdbootdev(d) + " /devicetree/openamp.dtbo; then fatload mmc " + get_sdbootdev(d) + " ${devicetree_overlay_load_address} /devicetree/openamp.dtbo ; fdt addr ${devicetree_load_address} ; fdt resize 8192 ; fdt apply ${devicetree_overlay_load_address} ; fi" + env["bootkernel"] = "run loadkernel && run loaddtb && run loaddtbo && " + uboot_boot_cmd(d) + " ${kernel_load_address} - ${devicetree_load_address}" + + if d.getVar("SOC_FAMILY") in ["zynqmp"]: + env["bootkernel"] = "setenv bootargs " + d.getVar("KERNEL_BOOTARGS") + " ; " + env["bootkernel"] + + # default uenvcmd does not load bitstream + env["uenvcmd"] = "run bootkernel" + + bitstream, bitstreamtype = boot_files_bitstream(d) + if bitstream: + env["bitstream_image"] = bitstream + env["bitstream_load_address"] = "0x100000" + + # if bitstream is "bit" format use loadb, otherwise use load + env["bitstream_type"] = "loadb" if bitstreamtype else "load" + + # load bitstream first with loadfpa + env["loadfpga"] = "fatload mmc " + get_sdbootdev(d) + " ${bitstream_load_address} ${bitstream_image} && fpga ${bitstream_type} 0 ${bitstream_load_address} ${filesize}" + env["uenvcmd"] = "run loadfpga && run bootkernel" + + return env + +DEPENDS:append := " virtual/kernel ${@remove_task_from_depends(d)}" + +# bootargs, default to booting with the rootfs device being partition 2 +KERNEL_BOOTARGS:zynq = "earlyprintk console=ttyPS0,115200 root=/dev/mmcblk0p2 rw rootwait" +KERNEL_BOOTARGS:zynqmp = "earlycon clk_ignore_unused root=/dev/mmcblk${devnum}p2 rw rootwait" + +KERNEL_LOAD_ADDRESS:zynq = "0x2080000" +KERNEL_LOAD_ADDRESS:zynqmp = "0x200000" +DEVICETREE_LOAD_ADDRESS:zynq = "0x2000000" +DEVICETREE_LOAD_ADDRESS:zynqmp = "0x4000000" +DEVICETREE_OVERLAY_LOAD_ADDRESS = "${@hex(int(d.getVar("DEVICETREE_LOAD_ADDRESS"),16) + 0xf00000)}" + +python do_compile() { + env = uenv_populate(d) + with open(d.expand("${WORKDIR}/uEnv.txt"), "w") as f: + for k, v in env.items(): + f.write("{0}={1}\n".format(k, v)) +} + +FILES:${PN} += "/boot/uEnv.txt" + +do_install() { + install -Dm 0644 ${WORKDIR}/uEnv.txt ${D}/boot/uEnv.txt +} + +do_deploy() { + install -Dm 0644 ${WORKDIR}/uEnv.txt ${DEPLOYDIR}/uEnv.txt +} +addtask do_deploy after do_compile before do_build + |