caeaddcf18
I added some comments about our decision for fpu flags. It's about the boards we have in mind to support. NVidia Tegra2 is out, because it lacks neon.
500 lines
10 KiB
Nix
500 lines
10 KiB
Nix
rec {
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pcBase = {
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name = "pc";
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uboot = null;
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kernelHeadersBaseConfig = "defconfig";
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kernelBaseConfig = "defconfig";
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# Build whatever possible as a module, if not stated in the extra config.
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kernelAutoModules = true;
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kernelTarget = "bzImage";
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};
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pc64 = pcBase // { kernelArch = "x86_64"; };
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pc32 = pcBase // { kernelArch = "i386"; };
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pc32_simplekernel = pc32 // {
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kernelAutoModules = false;
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};
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pc64_simplekernel = pc64 // {
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kernelAutoModules = false;
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};
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sheevaplug = {
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name = "sheevaplug";
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kernelMajor = "2.6";
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kernelHeadersBaseConfig = "kirkwood_defconfig";
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kernelBaseConfig = "multi_v5_defconfig";
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kernelArch = "arm";
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kernelAutoModules = false;
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kernelExtraConfig =
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''
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BLK_DEV_RAM y
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BLK_DEV_INITRD y
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BLK_DEV_CRYPTOLOOP m
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BLK_DEV_DM m
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DM_CRYPT m
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MD y
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REISERFS_FS m
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BTRFS_FS m
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XFS_FS m
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JFS_FS m
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EXT4_FS m
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USB_STORAGE_CYPRESS_ATACB m
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# mv cesa requires this sw fallback, for mv-sha1
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CRYPTO_SHA1 y
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# Fast crypto
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CRYPTO_TWOFISH y
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CRYPTO_TWOFISH_COMMON y
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CRYPTO_BLOWFISH y
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CRYPTO_BLOWFISH_COMMON y
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IP_PNP y
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IP_PNP_DHCP y
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NFS_FS y
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ROOT_NFS y
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TUN m
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NFS_V4 y
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NFS_V4_1 y
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NFS_FSCACHE y
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NFSD m
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NFSD_V2_ACL y
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NFSD_V3 y
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NFSD_V3_ACL y
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NFSD_V4 y
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NETFILTER y
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IP_NF_IPTABLES y
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IP_NF_FILTER y
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IP_NF_MATCH_ADDRTYPE y
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IP_NF_TARGET_LOG y
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IP_NF_MANGLE y
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IPV6 m
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VLAN_8021Q m
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CIFS y
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CIFS_XATTR y
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CIFS_POSIX y
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CIFS_FSCACHE y
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CIFS_ACL y
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WATCHDOG y
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WATCHDOG_CORE y
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ORION_WATCHDOG m
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ZRAM m
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NETCONSOLE m
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# Fail to build
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DRM n
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SCSI_ADVANSYS n
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USB_ISP1362_HCD n
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SND_SOC n
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SND_ALI5451 n
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FB_SAVAGE n
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SCSI_NSP32 n
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ATA_SFF n
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SUNGEM n
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IRDA n
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ATM_HE n
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SCSI_ACARD n
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BLK_DEV_CMD640_ENHANCED n
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FUSE_FS m
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# systemd uses cgroups
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CGROUPS y
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# Latencytop
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LATENCYTOP y
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# Ubi for the mtd
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MTD_UBI y
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UBIFS_FS y
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UBIFS_FS_XATTR y
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UBIFS_FS_ADVANCED_COMPR y
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UBIFS_FS_LZO y
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UBIFS_FS_ZLIB y
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UBIFS_FS_DEBUG n
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# Kdb, for kernel troubles
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KGDB y
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KGDB_SERIAL_CONSOLE y
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KGDB_KDB y
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'';
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kernelMakeFlags = [ "LOADADDR=0x0200000" ];
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kernelTarget = "uImage";
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uboot = "sheevaplug";
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# Only for uboot = uboot :
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ubootConfig = "sheevaplug_config";
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kernelDTB = true; # Beyond 3.10
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};
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raspberrypi = {
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name = "raspberrypi";
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kernelMajor = "2.6";
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kernelHeadersBaseConfig = "kirkwood_defconfig";
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kernelBaseConfig = "bcmrpi_defconfig";
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kernelArch = "arm";
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kernelAutoModules = false;
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kernelExtraConfig =
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''
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BLK_DEV_RAM y
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BLK_DEV_INITRD y
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BLK_DEV_CRYPTOLOOP m
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BLK_DEV_DM m
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DM_CRYPT m
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MD y
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REISERFS_FS m
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BTRFS_FS y
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XFS_FS m
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JFS_FS y
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EXT4_FS y
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IP_PNP y
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IP_PNP_DHCP y
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NFS_FS y
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ROOT_NFS y
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TUN m
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NFS_V4 y
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NFS_V4_1 y
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NFS_FSCACHE y
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NFSD m
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NFSD_V2_ACL y
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NFSD_V3 y
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NFSD_V3_ACL y
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NFSD_V4 y
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NETFILTER y
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IP_NF_IPTABLES y
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IP_NF_FILTER y
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IP_NF_MATCH_ADDRTYPE y
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IP_NF_TARGET_LOG y
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IP_NF_MANGLE y
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IPV6 m
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VLAN_8021Q m
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CIFS y
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CIFS_XATTR y
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CIFS_POSIX y
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CIFS_FSCACHE y
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CIFS_ACL y
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ZRAM m
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# Fail to build
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DRM n
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SCSI_ADVANSYS n
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USB_ISP1362_HCD n
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SND_SOC n
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SND_ALI5451 n
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FB_SAVAGE n
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SCSI_NSP32 n
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ATA_SFF n
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SUNGEM n
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IRDA n
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ATM_HE n
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SCSI_ACARD n
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BLK_DEV_CMD640_ENHANCED n
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FUSE_FS m
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# nixos mounts some cgroup
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CGROUPS y
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# Latencytop
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LATENCYTOP y
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'';
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kernelTarget = "zImage";
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uboot = null;
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gcc = {
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arch = "armv6";
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fpu = "vfp";
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float = "hard";
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};
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};
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raspberrypi2 = armv7l-hf-multiplatform // {
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name = "raspberrypi2";
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kernelBaseConfig = "bcm2709_defconfig";
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kernelDTB = true;
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kernelAutoModules = false;
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kernelExtraConfig =
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''
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BLK_DEV_RAM y
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BLK_DEV_INITRD y
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BLK_DEV_CRYPTOLOOP m
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BLK_DEV_DM m
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DM_CRYPT m
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MD y
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REISERFS_FS m
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BTRFS_FS y
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XFS_FS m
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JFS_FS y
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EXT4_FS y
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IP_PNP y
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IP_PNP_DHCP y
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NFS_FS y
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ROOT_NFS y
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TUN m
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NFS_V4 y
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NFS_V4_1 y
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NFS_FSCACHE y
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NFSD m
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NFSD_V2_ACL y
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NFSD_V3 y
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NFSD_V3_ACL y
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NFSD_V4 y
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NETFILTER y
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IP_NF_IPTABLES y
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IP_NF_FILTER y
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IP_NF_MATCH_ADDRTYPE y
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IP_NF_TARGET_LOG y
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IP_NF_MANGLE y
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IPV6 m
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VLAN_8021Q m
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CIFS y
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CIFS_XATTR y
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CIFS_POSIX y
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CIFS_FSCACHE y
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CIFS_ACL y
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ZRAM m
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# Fail to build
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DRM n
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SCSI_ADVANSYS n
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USB_ISP1362_HCD n
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SND_SOC n
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SND_ALI5451 n
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FB_SAVAGE n
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SCSI_NSP32 n
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ATA_SFF n
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SUNGEM n
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IRDA n
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ATM_HE n
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SCSI_ACARD n
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BLK_DEV_CMD640_ENHANCED n
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FUSE_FS m
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# nixos mounts some cgroup
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CGROUPS y
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# Latencytop
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LATENCYTOP y
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# Disable the common config Xen, it doesn't build on ARM
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XEN? n
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'';
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kernelTarget = "zImage";
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uboot = null;
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};
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guruplug = sheevaplug // {
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# Define `CONFIG_MACH_GURUPLUG' (see
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# <http://kerneltrap.org/mailarchive/git-commits-head/2010/5/19/33618>)
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# and other GuruPlug-specific things. Requires the `guruplug-defconfig'
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# patch.
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kernelBaseConfig = "guruplug_defconfig";
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#kernelHeadersBaseConfig = "guruplug_defconfig";
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};
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versatileARM = {
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name = "versatileARM";
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kernelMajor = "2.6";
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kernelHeadersBaseConfig = "versatile_defconfig";
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kernelBaseConfig = "versatile_defconfig";
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kernelArch = "arm";
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kernelAutoModules = false;
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kernelTarget = "zImage";
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kernelExtraConfig =
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''
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MMC_ARMMMCI y
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#MMC_SDHCI y
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SERIO_AMBAKMI y
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AEABI y
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RTC_CLASS y
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RTC_DRV_PL031 y
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PCI y
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SCSI y
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SCSI_DMA y
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SCSI_ATA y
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BLK_DEV_SD y
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BLK_DEV_SR y
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SCSI_SYM53C8XX_2 y
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TMPFS y
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IPV6 m
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REISERFS_FS m
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EXT4_FS m
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IP_PNP y
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IP_PNP_DHCP y
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IP_PNP_BOOTP y
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ROOT_NFS y
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'';
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uboot = null;
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};
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integratorCP = {
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name = "integratorCP";
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kernelMajor = "2.6";
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kernelHeadersBaseConfig = "integrator_defconfig";
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kernelBaseConfig = "integrator_defconfig";
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kernelArch = "arm";
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kernelAutoModules = false;
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kernelTarget = "zImage";
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kernelExtraConfig =
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''
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# needed for qemu integrator/cp
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SERIAL_AMBA_PL011 y
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SERIAL_AMBA_PL011_CONSOLE y
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SERIAL_AMBA_PL010 n
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SERIAL_AMBA_PL010_CONSOLE n
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MMC_ARMMMCI y
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MMC_SDHCI y
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SERIO_AMBAKMI y
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CPU_ARM926T y
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ARCH_INTEGRATOR_CP y
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VGA_CONSOLE n
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AEABI y
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'';
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uboot = null;
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ubootConfig = "integratorcp_config";
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};
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integratorCPuboot = integratorCP // {
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name = "integratorCPuboot";
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kernelTarget = "uImage";
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uboot = "upstream";
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ubootConfig = "integratorcp_config";
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};
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fuloong2f_n32 = {
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name = "fuloong2f_n32";
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kernelMajor = "2.6";
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kernelHeadersBaseConfig = "fuloong2e_defconfig";
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kernelBaseConfig = "lemote2f_defconfig";
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kernelArch = "mips";
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kernelAutoModules = false;
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kernelExtraConfig =
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''
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MIGRATION n
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COMPACTION n
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# nixos mounts some cgroup
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CGROUPS y
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BLK_DEV_RAM y
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BLK_DEV_INITRD y
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BLK_DEV_CRYPTOLOOP m
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BLK_DEV_DM m
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DM_CRYPT m
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MD y
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REISERFS_FS m
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EXT4_FS m
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USB_STORAGE_CYPRESS_ATACB m
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IP_PNP y
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IP_PNP_DHCP y
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IP_PNP_BOOTP y
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NFS_FS y
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ROOT_NFS y
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TUN m
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NFS_V4 y
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NFS_V4_1 y
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NFS_FSCACHE y
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NFSD m
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NFSD_V2_ACL y
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NFSD_V3 y
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NFSD_V3_ACL y
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NFSD_V4 y
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# Fail to build
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DRM n
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SCSI_ADVANSYS n
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USB_ISP1362_HCD n
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SND_SOC n
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SND_ALI5451 n
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FB_SAVAGE n
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SCSI_NSP32 n
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ATA_SFF n
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SUNGEM n
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IRDA n
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ATM_HE n
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SCSI_ACARD n
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BLK_DEV_CMD640_ENHANCED n
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FUSE_FS m
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# Needed for udev >= 150
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SYSFS_DEPRECATED_V2 n
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VGA_CONSOLE n
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VT_HW_CONSOLE_BINDING y
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SERIAL_8250_CONSOLE y
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FRAMEBUFFER_CONSOLE y
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EXT2_FS y
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EXT3_FS y
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REISERFS_FS y
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MAGIC_SYSRQ y
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# The kernel doesn't boot at all, with FTRACE
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FTRACE n
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'';
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kernelTarget = "vmlinux";
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uboot = null;
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gcc.arch = "loongson2f";
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};
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beaglebone = armv7l-hf-multiplatform // {
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name = "beaglebone";
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kernelBaseConfig = "omap2plus_defconfig";
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kernelAutoModules = false;
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kernelExtraConfig = ""; # TBD kernel config
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kernelTarget = "zImage";
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uboot = null;
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};
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armv7l-hf-multiplatform = {
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name = "armv7l-hf-multiplatform";
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kernelMajor = "2.6"; # Using "2.6" enables 2.6 kernel syscalls in glibc.
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kernelHeadersBaseConfig = "multi_v7_defconfig";
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kernelBaseConfig = "multi_v7_defconfig";
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kernelArch = "arm";
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kernelDTB = true;
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kernelAutoModules = false;
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kernelExtraConfig = "";
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uboot = null;
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kernelTarget = "zImage";
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gcc = {
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# Some table about fpu flags:
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# http://community.arm.com/servlet/JiveServlet/showImage/38-1981-3827/blogentry-103749-004812900+1365712953_thumb.png
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# Cortex-A5: -mfpu=neon-fp16
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# Cortex-A7 (rpi2): -mfpu=neon-vfpv4
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# Cortex-A8 (beaglebone): -mfpu=neon
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# Cortex-A9: -mfpu=neon-fp16
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# Cortex-A15: -mfpu=neon-vfpv4
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# More about FPU:
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#https://wiki.debian.org/ArmHardFloatPort/VfpComparison
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# We try to be compatible with beaglebone by now
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arch = "armv7-a";
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fpu = "neon";
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float = "hard";
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# For Raspberry Pi the 2 the best would be:
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# cpu = "cortex-a7";
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# fpu = "neon-vfpv4";
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};
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};
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}
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