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loongarch64: new target

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Add target for Loongson LoongArch64-based boards.

LoongArch is a new RISC ISA developed by Loongson. It's a bit like
MIPS or RISC-V. LoongArch includes both 32-bit and 64-bit versions
(LoongArch32/LoongArch64).

Loongson 3A5000 and 3A6000 are the two existing CPUs of LoongArch64
and is used for PC products. It's BIOS supports ACPI and UEFI-only
boot. These CPUs supports SMP and SMT.

At present only LoongArch64 is supported by linux kernel.

Toolchain requirement:
binutils >= 2.40
gcc >= 13.1

For details, please check the following links:
https://lwn.net/Articles/861951/
https://loongson.github.io/LoongArch-Documentation/README-EN.html

Signed-off-by: Weijie Gao <hackpascal@gmail.com>
This commit is contained in:
Weijie Gao
2024-01-07 03:10:45 +08:00
committed by Chuanhong Guo
parent 197d90dc31
commit 7fcb82665e
16 changed files with 1236 additions and 4 deletions
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10
config/Config-images.in
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@ -204,13 +204,14 @@ menu "Target Images"
default y
config GRUB_EFI_IMAGES
bool "Build GRUB EFI images (Linux x86 or x86_64 host only)"
depends on TARGET_x86 || TARGET_armsr
bool "Build GRUB EFI images"
depends on TARGET_x86 || TARGET_armsr || TARGET_loongarch64
depends on TARGET_ROOTFS_EXT4FS || TARGET_ROOTFS_JFFS2 || TARGET_ROOTFS_SQUASHFS
select PACKAGE_grub2 if TARGET_x86
select PACKAGE_grub2-efi if TARGET_x86
select PACKAGE_grub2-bios-setup if TARGET_x86
select PACKAGE_grub2-efi-arm if TARGET_armsr
select PACKAGE_grub2-efi-loongarch64 if TARGET_loongarch64
select PACKAGE_kmod-fs-vfat
default y
@ -276,12 +277,12 @@ menu "Target Images"
config TARGET_SERIAL
string "Serial port device"
depends on TARGET_x86 || TARGET_armsr
depends on TARGET_x86 || TARGET_armsr || TARGET_loongarch64
default "ttyS0"
config TARGET_IMAGES_GZIP
bool "GZip images"
depends on TARGET_ROOTFS_EXT4FS || TARGET_x86 || TARGET_armsr || TARGET_malta
depends on TARGET_ROOTFS_EXT4FS || TARGET_x86 || TARGET_armsr || TARGET_malta || TARGET_loongarch64
default y
comment "Image Options"
@ -300,6 +301,7 @@ menu "Target Images"
config TARGET_ROOTFS_PARTSIZE
int "Root filesystem partition size (in MiB)"
depends on USES_ROOTFS_PART || TARGET_ROOTFS_EXT4FS
default 232 if TARGET_loongarch64
default 448 if TARGET_mediatek
default 104
help