diff options
Diffstat (limited to 'meta-xilinx/meta-xilinx-bsp/recipes-bsp/u-boot/u-boot-zynq-uenv.bb')
-rw-r--r-- | meta-xilinx/meta-xilinx-bsp/recipes-bsp/u-boot/u-boot-zynq-uenv.bb | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-bsp/u-boot/u-boot-zynq-uenv.bb b/meta-xilinx/meta-xilinx-bsp/recipes-bsp/u-boot/u-boot-zynq-uenv.bb new file mode 100644 index 000000000..f6c2a00d4 --- /dev/null +++ b/meta-xilinx/meta-xilinx-bsp/recipes-bsp/u-boot/u-boot-zynq-uenv.bb @@ -0,0 +1,116 @@ +SUMMARY = "U-Boot uEnv.txt SD boot environment generation for Zynq targets" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" + +INHIBIT_DEFAULT_DEPS = "1" +PACKAGE_ARCH = "${MACHINE_ARCH}" + +COMPATIBLE_MACHINE = "^$" +COMPATIBLE_MACHINE_zynq = ".*" +COMPATIBLE_MACHINE_zynqmp = ".*" + +inherit deploy + +def bootfiles_bitstream(d): + expectedfiles = [("bitstream", True)] + expectedexts = [(".bit", True), (".bin", False)] + # search for bitstream paths, use the renamed file. First matching is used + for f in (d.getVar("IMAGE_BOOT_FILES") or "").split(): + sf, rf = f, f + if ';' in f: + sf, rf = f.split(';') + + # skip boot.bin and u-boot.bin, it is not a bitstream + skip = ["boot.bin", "u-boot.bin"] + if sf in skip or rf in skip: + continue + + for e, t in expectedfiles: + if sf == e or rf == e: + return rf, t + for e, t in expectedexts: + if sf.endswith(e) or rf.endswith(e): + return rf, t + return "", False + +def bootfiles_dtb_filepath(d): + if d.getVar("IMAGE_BOOT_FILES"): + dtbs = d.getVar("IMAGE_BOOT_FILES").split(" ") + # IMAGE_BOOT_FILES has extra renaming info in the format '<source>;<target>' + dtbs = [f.split(";")[0] for f in dtbs] + dtbs = [f for f in dtbs if f.endswith(".dtb")] + if len(dtbs) != 0: + return dtbs[0] + return "" + +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 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"] = bootfiles_dtb_filepath(d) + env["devicetree_load_address"] = d.getVar("DEVICETREE_LOAD_ADDRESS") + + env["bootargs"] = d.getVar("KERNEL_BOOTARGS") + + env["loadkernel"] = "fatload mmc 0 ${kernel_load_address} ${kernel_image}" + env["loaddtb"] = "fatload mmc 0 ${devicetree_load_address} ${devicetree_image}" + env["bootkernel"] = "run loadkernel && run loaddtb && " + uboot_boot_cmd(d) + " ${kernel_load_address} - ${devicetree_load_address}" + + # default uenvcmd does not load bitstream + env["uenvcmd"] = "run bootkernel" + + bitstream, bitstreamtype = bootfiles_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 0 ${bitstream_load_address} ${bitstream_image} && fpga ${bitstream_type} 0 ${bitstream_load_address} ${filesize}" + env["uenvcmd"] = "run loadfpga && run bootkernel" + + return env + +# bootargs, default to booting with the rootfs device being partition 2 of the first mmc device +KERNEL_BOOTARGS_zynq = "earlyprintk console=ttyPS0,115200 root=/dev/mmcblk0p2 rw rootwait" +KERNEL_BOOTARGS_zynqmp = "earlycon clk_ignore_unused root=/dev/mmcblk0p2 rw rootwait" + +KERNEL_LOAD_ADDRESS_zynq = "0x2080000" +KERNEL_LOAD_ADDRESS_zynqmp = "0x80000" +DEVICETREE_LOAD_ADDRESS_zynq = "0x2000000" +DEVICETREE_LOAD_ADDRESS_zynqmp = "0x4000000" + +python do_compile() { + env = uenv_populate(d) + with open(d.expand("${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 + |