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1a08f1524d
The new UEFI-like firmware interface (LEFI, i.e. Loongson Unified Firmware Interface) has 3 advantages: 1, Firmware export a physical memory map which is similar to X86's E820 map, so prom_init_memory() will be more elegant that #ifdef clauses can be removed. 2, Firmware export a pci irq routing table, we no longer need pci irq routing fixup in kernel's code. 3, Firmware has a built-in vga bios, and its address is exported, the linux kernel no longer need an embedded blob. With the LEFI interface, Loongson-3A/2G and all their successors can use a unified kernel. All Loongson-based machines support this new interface except 2E/2F series. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Hongliang Tao <taohl@lemote.com> Signed-off-by: Hua Yan <yanh@lemote.com> Tested-by: Alex Smith <alex.smith@imgtec.com> Reviewed-by: Alex Smith <alex.smith@imgtec.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/6632 Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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