81 lines
2.3 KiB
Nix
81 lines
2.3 KiB
Nix
{ config, lib, pkgs, modulesPath, ... }:
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let
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overlay = final: prev: {
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uboot = prev.ubootQemuRiscv64Smode.override {
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filesToInstall = [ "u-boot.bin" "u-boot-nodtb.bin" ];
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extraConfig = ''
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CONFIG_RISCV=y
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CONFIG_RISCV_SMODE=y
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CONFIG_SYS_MALLOC_LEN=0x800000
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CONFIG_NR_DRAM_BANKS=1
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CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
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CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
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CONFIG_ENV_SIZE=0x20000
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CONFIG_SYS_LOAD_ADDR=0x80200000
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CONFIG_ARCH_RV64I=y
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CONFIG_FIT=y
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CONFIG_DISTRO_DEFAULTS=y
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CONFIG_DISPLAY_CPUINFO=y
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CONFIG_DISPLAY_BOARDINFO=y
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CONFIG_SYS_CBSIZE=256
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CONFIG_SYS_PBSIZE=276
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CONFIG_SYS_BOOTM_LEN=0x4000000
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CONFIG_CMD_BOOTEFI_SELFTEST=y
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CONFIG_CMD_NVEDIT_EFI=y
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# CONFIG_CMD_MII is not set
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CONFIG_SYS_RELOC_GD_ENV_ADDR=y
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CONFIG_DM_MTD=y
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CONFIG_FLASH_SHOW_PROGRESS=0
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CONFIG_SYS_MAX_FLASH_BANKS=2
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#CONFIG_TEXT_BASE=0x80000000
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# -------------------------
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CONFIG_RISCV_ISA_C=n
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# CONFIG_OF_EMBED=n
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# CONFIG_OF_SEPARATE=y
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# CONFIG_OF_OMIT_DTB=y
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CONFIG_REQUIRE_SERIAL_CONSOLE=n
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CONFIG_SERIAL_SEARCH_ALL=y
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CONFIG_OF_CONTROL=y
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CONFIG_OF_BOARD=y
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CONFIG_OF_HAS_PRIOR_STAGE=y
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CONFIG_BLKMAP=y
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CONFIG_CMD_BLKMAP=y
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CONFIG_SBI_V01=y
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CONFIG_DEBUG_UART=y
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CONFIG_DEBUG_UART_ANNOUNCE=y
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CONFIG_DEBUG_SBI_CONSOLE=y
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'';
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};
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opensbi = prev.opensbi.overrideAttrs (old: {
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makeFlags = old.makeFlags ++ [
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# Build OpenSBI without compressed instructions
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"PLATFORM_RISCV_ISA=rv64g"
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"PLATFORM=fpga/openpiton"
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# Check with: riscv64-unknown-elf-objdump -d -M no-aliases rotate
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"FW_PAYLOAD_PATH=${final.uboot}/u-boot-nodtb.bin"
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];
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});
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};
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in {
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nixpkgs.overlays = [ overlay ];
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#boot.kernelPackages = pkgs.linuxPackages_latest;
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boot.kernelPatches = [
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{
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name = assert false; "sbi-early-console";
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patch = null;
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extraConfig = ''
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# Early console via SBI
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RISCV_SBI y
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RISCV_SBI_V01 y
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SERIAL_EARLYCON y
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SERIAL_EARLYCON_RISCV_SBI y
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HVC_DRIVER y
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HVC_RISCV_SBI y
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'';
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}
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];
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}
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