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Diffstat (limited to 'qemu/roms/u-boot/doc/README.arm64')
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diff --git a/qemu/roms/u-boot/doc/README.arm64 b/qemu/roms/u-boot/doc/README.arm64 deleted file mode 100644 index 75586dbaa..000000000 --- a/qemu/roms/u-boot/doc/README.arm64 +++ /dev/null @@ -1,46 +0,0 @@ -U-boot for arm64 - -Summary -======= -No hardware platform of arm64 is available now. The u-boot is -simulated on Foundation Model and Fast Model for ARMv8. - -Notes -===== - -1. Currenly, u-boot run at the highest exception level processor - supported and jump to EL2 or optionally EL1 before enter OS. - -2. U-boot for arm64 is compiled with AArch64-gcc. AArch64-gcc - use rela relocation format, a tool(tools/relocate-rela) by Scott Wood - is used to encode the initial addend of rela to u-boot.bin. After running, - the u-boot will be relocated to destination again. - -3. Fdt should be placed at a 2-megabyte boundary and within the first 512 - megabytes from the start of the kernel image. So, fdt_high should be - defined specially. - Please reference linux/Documentation/arm64/booting.txt for detail. - -4. Spin-table is used to wake up secondary processors. One location - (or per processor location) is defined to hold the kernel entry point - for secondary processors. It must be ensured that the location is - accessible and zero immediately after secondary processor - enter slave_cpu branch execution in start.S. The location address - is encoded in cpu node of DTS. Linux kernel store the entry point - of secondary processors to it and send event to wakeup secondary - processors. - Please reference linux/Documentation/arm64/booting.txt for detail. - -5. Generic board is supported. - -6. CONFIG_ARM64 instead of CONFIG_ARMV8 is used to distinguish aarch64 and - aarch32 specific codes. - -Contributor -=========== - Tom Rini <trini@ti.com> - Scott Wood <scottwood@freescale.com> - York Sun <yorksun@freescale.com> - Simon Glass <sjg@chromium.org> - Sharma Bhupesh <bhupesh.sharma@freescale.com> - Rob Herring <robherring2@gmail.com> |