A port of NetBSD to the Linksys NSLU2 (a.k.a. "Slug").
The NSLU2 (Network Storage Link for USB 2.0 Disk Drives) is a small, *cheap* NAS device consisting of an Intel IXP420 (Xscale) CPU, a 10/100mbit Ethernet port, and two USB 2.0 ports. It has 32MB of SDRAM and 8MB of Flash memory, and runs RedBoot/Linux out of the box. Now it can also run NetBSD.
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# $NetBSD: NSLU2,v 1.1 2006/02/28 20:40:33 scw Exp $
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#
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# Linksys NSLU2 "Slug" NAS Device
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#
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include "arch/evbarm/conf/std.nslu2"
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# estimated number of users
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maxusers 8
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# Feeling bloated? These might help...
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#options MALLOC_NOINLINE
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#options VNODE_OP_NOINLINE
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#options EVBARM_SPL_NOINLINE
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#makeoptions COPTS="-Os"
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# Standard system options
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options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT
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options NTP # NTP phase/frequency locked loop
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# CPU options
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# For XScale systems
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options CPU_XSCALE_IXP425 # Support the XScale core
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makeoptions CPUFLAGS="-mcpu=xscale -mbig-endian"
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# Architecture options
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options XSCALE_CACHE_READ_WRITE_ALLOCATE
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#options HZ=512
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# Board Type
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makeoptions BOARDTYPE="nslu2"
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# File systems
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file-system FFS # UFS
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#file-system LFS # log-structured file system
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file-system MFS # memory file system
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file-system NFS # Network file system
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#file-system ADOSFS # AmigaDOS-compatible file system
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#file-system EXT2FS # second extended file system (linux)
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#file-system CD9660 # ISO 9660 + Rock Ridge file system
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#file-system MSDOSFS # MS-DOS file system
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#file-system FDESC # /dev/fd
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#file-system KERNFS # /kern
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#file-system NULLFS # loopback file system
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#file-system PORTAL # portal filesystem (still experimental)
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#file-system PROCFS # /proc
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#file-system UMAPFS # NULLFS + uid and gid remapping
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#file-system UNION # union file system
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# File system options
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#options QUOTA # UFS quotas
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#options FFS_EI # FFS Endian Independant support
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#options NFSSERVER
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#options SOFTDEP
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# Networking options
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#options GATEWAY # packet forwarding
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options INET # IP + ICMP + TCP + UDP
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options INET6 # IPV6
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#options IPSEC # IP security
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#options IPSEC_ESP # IP security (encryption part; define w/ IPSEC)
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#options IPSEC_DEBUG # debug for IP security
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#options MROUTING # IP multicast routing
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#options NS # XNS
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#options NSIP # XNS tunneling over IP
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#options ISO,TPIP # OSI
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#options EON # OSI tunneling over IP
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#options CCITT,LLC,HDLC # X.25
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#options NETATALK # AppleTalk networking
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options PFIL_HOOKS # pfil(9) packet filter hooks
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#options PPP_BSDCOMP # BSD-Compress compression support for PPP
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#options PPP_DEFLATE # Deflate compression support for PPP
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#options PPP_FILTER # Active filter support for PPP (requires bpf)
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#options IPFILTER_LOG # ipmon(8) log support
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#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
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#options NFS_BOOT_BOOTP
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options NFS_BOOT_DHCP
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#options NFS_BOOT_BOOTPARAM
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# Compatibility options
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#options COMPAT_43 # 4.3BSD compatibility.
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#options COMPAT_30 # NetBSD 3.0 compatibility.
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#options COMPAT_20 # NetBSD 2.0 compatibility.
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#options COMPAT_16 # NetBSD 1.5 compatibility.
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#options COMPAT_15 # NetBSD 1.6 compatibility.
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#options COMPAT_14 # NetBSD 1.4 compatibility.
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#options COMPAT_13 # NetBSD 1.3 compatibility.
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#options COMPAT_12 # NetBSD 1.2 compatibility.
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#options COMPAT_11 # NetBSD 1.1 compatibility.
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#options COMPAT_10 # NetBSD 1.0 compatibility.
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#options COMPAT_09 # NetBSD 0.9 compatibility.
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#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended.
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options COMPAT_BSDPTY # /dev/[pt]ty?? ptys.
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# Shared memory options
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#options SYSVMSG # System V-like message queues
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#options SYSVSEM # System V-like semaphores
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#options SEMMNI=10 # number of semaphore identifiers
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#options SEMMNS=60 # number of semaphores in system
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#options SEMUME=10 # max number of undo entries per process
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#options SEMMNU=30 # number of undo structures in system
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#options SYSVSHM # System V-like memory sharing
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#options SHMMAXPGS=1024 # 1024 pages is the default
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# Device options
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#options MEMORY_DISK_HOOKS # boottime setup of ramdisk
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#options MEMORY_DISK_ROOT_SIZE=3400 # Size in blocks
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#options MEMORY_DISK_IS_ROOT # use memory disk as root
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# Console options. The default console is speed is 115200 baud.
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options CONSPEED=115200 # Console speed
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options CONUNIT=0 # Console port number
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# Miscellaneous kernel options
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#options KTRACE # system call tracing, a la ktrace(1)
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#options IRQSTATS # manage IRQ statistics
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#options LKM # loadable kernel modules
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#options KMEMSTATS # kernel memory statistics
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#options SCSIVERBOSE # Verbose SCSI errors
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#options PCIVERBOSE # Verbose PCI descriptions
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#options MIIVERBOSE # Verbose MII autoconfuration messages
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#options PCI_CONFIG_DUMP # verbosely dump PCI config space
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#options DDB_KEYCODE=0x40
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#options USERCONF # userconf(4) support
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#options PIPE_SOCKETPAIR # smaller, but slower pipe(2)
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# Development and Debugging options
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#options PERFCTRS # performance counters
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options DIAGNOSTIC # internally consistency checks
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options DEBUG
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#options PMAP_DEBUG # Enable pmap_debug_level code
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#options IPKDB # remote kernel debugging
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#options VERBOSE_INIT_ARM # verbose bootstraping messages
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options DDB # in-kernel debugger
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options DDB_HISTORY_SIZE=100 # Enable history editing in DDB
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#makeoptions DEBUG="-g" # compile full symbol table
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options SYMTAB_SPACE=260000
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config netbsd root on ? type ?
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# The main bus device
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mainbus0 at root
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# The boot cpu
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cpu0 at mainbus?
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# IXP425 slow peripheral
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ixpsip0 at mainbus?
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#Timer
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ixpclk* at ixpsip? addr 0xc8005000 size 0x30
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# On-board device support
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com0 at ixpsip? addr 0xc8000000 size 0x1000 index 0
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options COM_PXA2X0
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# I2C bus (using bit-banged GPIO pins)
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slugiic0 at ixpsip?
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iic0 at slugiic0
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xrtc0 at iic0 addr 0x6f
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# Power/Reset button support (via sysmon)
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slugbutt0 at ixpsip?
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# Disk activity and ready/status LED support
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slugled0 at ixpsip?
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# Buzzer support (not supported yet)
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#slugbuzz0 at ixpsip?
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# IXP425 fast bus
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ixpio0 at mainbus?
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# PCI bus
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pci0 at ixpio? bus ?
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# USB devices
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ehci* at pci? dev ? function ?
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ohci* at pci? dev ? function ?
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usb* at ehci?
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usb* at ohci?
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uhub* at usb?
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uhub* at uhub? port ? configuration ? interface ?
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# USB Mass Storage Devices
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umass* at uhub? port ? configuration ? interface ?
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wd* at umass?
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scsibus* at umass? channel ?
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sd* at scsibus? target ? lun ? # SCSI disk drives
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# USB Ethernet adapters
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aue* at uhub? port ? # ADMtek AN986 Pegasus based adapters
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axe* at uhub? port ? # ASIX AX88172 based adapters
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cdce* at uhub? port ? # CDC, Ethernet Networking Control Model
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cue* at uhub? port ? # CATC USB-EL1201A based adapters
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kue* at uhub? port ? # Kawasaki LSI KL5KUSB101B based adapters
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udav* at uhub? port ? # Davicom DM9601 based adapters
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url* at uhub? port ? # Realtek RTL8150L based adapters
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# MII/PHY support
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ukphy* at mii? phy ? # Generic/Unknown PHY
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# USB 802.11 adapters
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atu* at uhub? port ? # Atmel AT76C50XX based adapters
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ral* at uhub? port ? # Ralink Technology RT25x0 802.11a/b/g
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# USB Generic driver
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ugen* at uhub? port ? configuration ? interface ?
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# Pseudo-Devices
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# disk/mass storage pseudo-devices
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#pseudo-device md 1 # memory disk device (ramdisk)
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#pseudo-device vnd 4 # disk-like interface to files
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# network pseudo-devices
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pseudo-device bpfilter 4 # Berkeley packet filter
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#pseudo-device ipfilter # IP filter (firewall) and NAT
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pseudo-device loop # network loopback
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#pseudo-device ppp 2 # Point-to-Point Protocol
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#pseudo-device kttcp # network loopback
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#pseudo-device tun 2 # network tunneling over tty
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#pseudo-device vlan
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#pseudo-device bridge
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# miscellaneous pseudo-devices
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pseudo-device pty # pseudo-terminals
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pseudo-device rnd # /dev/random and in-kernel generator
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pseudo-device clockctl # user control of clock subsystem
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pseudo-device ksyms # /dev/ksyms
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#pseudo-device crypto # opencrypto framework
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# data mover pseudo-devices
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#pseudo-device swdmover # softare dmover(9) back-end
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#pseudo-device dmoverio # /dev/dmover dmover(9) interface
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@ -0,0 +1,40 @@
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# $NetBSD%
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#
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# Linksys NSLU2 "Slug" configuration info
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#
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# Use the generic ARM soft interrupt code.
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file arch/arm/arm/softintr.c
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file arch/evbarm/nslu2/nslu2_machdep.c
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# IXP425 Network Processor CPU support
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include "arch/arm/xscale/files.ixp425"
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# IXP425 PCI bus support
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attach ixpio at mainbus with ixpio_mainbus
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file arch/evbarm/nslu2/nslu2_mainbus.c ixpio_mainbus
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file arch/evbarm/nslu2/nslu2_pci.c ixpio
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# IXP425 slow peripheral bus support
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attach ixpsip at mainbus
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# Bitbang I2C bus (using two GPIO pins)
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# (Attached to ixpsip for want of a better place)
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device slugiic: i2cbus, i2c_bitbang
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attach slugiic at ixpsip
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file arch/evbarm/nslu2/nslu2_iic.c slugiic
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# Power/Reset button support
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device slugbutt: sysmon_power, sysmon_taskq
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attach slugbutt at ixpsip
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file arch/evbarm/nslu2/nslu2_buttons.c slugbutt
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# Disk activity and status LED support
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device slugled
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attach slugled at ixpsip
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file arch/evbarm/nslu2/nslu2_leds.c slugled
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# Buzzer support
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#device slugbuzz
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#attach slugbuzz at ixpsip
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#file arch/evbarm/nslu2/nslu2_slugbuzz.c slugbuzz
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# $NetBSD: mk.nslu2,v 1.1 2006/02/28 20:40:33 scw Exp $
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SYSTEM_FIRST_OBJ= nslu2_start.o
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SYSTEM_FIRST_SFILE= ${THISARM}/nslu2/nslu2_start.S
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SYSTEM_OBJ= ${MD_OBJS} ${MI_OBJS} ${OBJS} ${SYSLIBCOMPAT} ${LIBKERN}
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KERNEL_BASE_PHYS?=0x10200000
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KERNEL_BASE_VIRT=0xc0200000
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SYSTEM_LD_TAIL_EXTRA+=; \
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echo ${OBJCOPY} -S -O binary $@ $@.bin; \
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${OBJCOPY} -S -O binary $@ $@.bin
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EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.bin@}
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# $NetBSD: std.nslu2,v 1.1 2006/02/28 20:40:33 scw Exp $
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#
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# Standard NetBSD/evbarm options for Linksys NSLU2
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machine evbarm arm
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include "conf/std" # MI standard options
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# Pull in NSLU2 config definitions.
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include "arch/evbarm/conf/files.nslu2"
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options EXEC_ELF32
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options EXEC_AOUT
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options EXEC_SCRIPT
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options ARM32
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makeoptions LOADADDRESS="0xc0200000"
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makeoptions BOARDMKFRAG="${THISARM}/conf/mk.nslu2"
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options ARM_INTR_IMPL="<arch/arm/xscale/ixp425_intr.h>"
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options __BUS_SPACE_HAS_STREAM_METHODS
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# We need to configure the PCI bus.
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options PCI_NETBSD_CONFIGURE
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@ -0,0 +1,125 @@
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$NetBSD: README,v 1.1 2006/02/28 20:40:33 scw Exp $
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NetBSD for the Linksys NSLU2 (a.k.a. "Slug")
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The NSLU2 (Network Storage Link for USB 2.0 Disk Drives) is a small, cheap
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NAS device consisting of an Intel IXP420 (Xscale) CPU, a 10/100mbit Ethernet
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port, and two USB 2.0 ports. It has 32MB of SDRAM and 8MB of Flash memory,
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and runs RedBoot/Linux out of the box.
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It is eminently hackable.
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The guys over at http://www.nslu2-linux.org/ have done a good job of
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documenting just about every aspect of the hardware and original firmware.
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They also provide a custom "Unslung" Linux distribution to replace the
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original hobbled kernel/userland.
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Because of the amount of documentation available, and the fact that Slugs
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are available so cheaply (I paid just over UKP 50 for mine, brand new) I
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decided to buy one and port NetBSD to it.
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This is the result of that effort.
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Note: The Slug's IXP420 CPU runs in big-endian mode, so when building a
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cross toolchain you must pass "-m evbarm -a armeb" to build.sh.
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Current status
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==============
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The following bits of Slug hardware are not (yet?) supported:
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- NPE Ethernet
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Someone will have to port Intel's IXP425 access library before this can
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be made to work. If that someone is you, the source code is available
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online here:
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http://www.intel.com/design/network/products/npfamily/ixp425.htm
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Look under "Tools & Software", then select "Register/Login" to download
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"Intel(R) IXP400 Software". Documentation is available in the
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"Technical Documents" section.
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The easiest option will be to download the non-crypto version of the
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Access Library. The crypto-enabled version requires a lot more form
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filling. The Slug's IXP420 has no crypto capabilities anyway.
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- Flash ROM
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You can write gzboot kernels (when support is added) to Flash using
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RedBoot, so all is not lost.
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- Buzzer
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In the absence of a decent API to expose the onboard buzzer to userland,
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this is not yet supported. I envisage using timer1 to generate an
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interrupt at the required rate (1-2KHz). The handler will toggle the
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buzzer GPIO pin. Obviously timer1 will be configured only when necessary
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as a 1-2KHz interrupt rate will sap a fair bit of CPU horsepower.
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Everything else is fully supported, including the power/reset buttons and
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disk activity/status LEDs.
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Non-hardware items on the TODO list include:
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- gzboot support.
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This needs to emulate a "vmlinuz" compressed Linux kernel image so that
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RedBoot will invoke the kernel from Flash at power-up.
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- Move the kernel link address closer to the start of SDRAM. We waste a
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little under 2MB with the current setup.
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- The clock runs slow. In ixp425_timer.c, COUNTS_PER_SEC is defined as
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66666600 instead of 66666667. This, together with rounding errors, is
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almost certainly the cause.
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Getting NetBSD onto the NSLU2
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=============================
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Thanks to the efforts of the guys over at www.nslu2-linux.org, hacking the
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Slug is a pretty easy proposition, but some soldering skills are essential.
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For a first-time install of NetBSD (at least until someone comes up with a
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nice easy binary install image) you will almost certainly require access to
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the serial console. This means firing up your trusty soldering iron and
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hooking up a MAX3232 chip to your Slug. While your soldering iron is hot,
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you should seriously consider de-restricting your Slug's CPU core clock
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speed (133MHz stock, 266MHz de-restricted) by removing a single surface-
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mount resistor. Full instructions for both the these mods are on the above
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website.
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Once you have console access you can interrupt RedBoot's auto-boot process
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using CTRL-C. You are now in a position to download a NetBSD kernel into
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SDRAM.
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You will have to configure a TFTP server on a machine hooked up to the same
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Ethernet segment as the Slug. This machine's Ethernet interface must also
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be configured to have an address in the 192.168.0.0/24 subnet since the
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Slug's Ethernet *always* defaults to 192.168.0.1 when running RedBoot.
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There seems to be no way to alter this, so the best course of action will
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probably be to set up an alias on the server's interface. 192.168.0.2 is
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a good choice.
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Assuming you've done all that and have dropped a suitable kernel image
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into the TFTP directory, the following commands will load and run the
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kernel.
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redboot> ip_address -h 192.168.0.2
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redboot> load -r -b 0x200000 netbsd.bin
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redboot> go
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At this point your only real option is to mount the root filesystem from
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a USB disk device as the onboard Ethernet is not (yet?) supported. However,
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there's nothing to stop you using a USB-Ethernet interface...
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Note that the kernel will always report the CPU core clock speed as 266MHz
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even if your Slug's CPU clock is running at a stock 133MHz.
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Burning a NetBSD kernel into Flash
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==================================
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||||
|
||||
TBD (waiting for gzboot support).
|
||||
|
||||
|
|
@ -0,0 +1,187 @@
|
|||
/* $NetBSD: nslu2_buttons.c,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: nslu2_buttons.c,v 1.1 2006/02/28 20:40:33 scw Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/device.h>
|
||||
|
||||
#include <dev/sysmon/sysmonvar.h>
|
||||
#include <dev/sysmon/sysmon_taskq.h>
|
||||
|
||||
#include <arm/xscale/ixp425reg.h>
|
||||
#include <arm/xscale/ixp425var.h>
|
||||
|
||||
#include <evbarm/nslu2/nslu2reg.h>
|
||||
|
||||
struct slugbutt_softc {
|
||||
struct device sc_dev;
|
||||
struct sysmon_pswitch sc_smpwr;
|
||||
struct sysmon_pswitch sc_smrst;
|
||||
};
|
||||
|
||||
static int slugbutt_attached;
|
||||
|
||||
static void
|
||||
power_event(void *arg)
|
||||
{
|
||||
struct slugbutt_softc *sc = arg;
|
||||
|
||||
sysmon_pswitch_event(&sc->sc_smpwr, PSWITCH_EVENT_PRESSED);
|
||||
}
|
||||
|
||||
static int
|
||||
power_intr(void *arg)
|
||||
{
|
||||
struct slugbutt_softc *sc = arg;
|
||||
int rv;
|
||||
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPISR,
|
||||
1u << GPIO_BUTTON_PWR);
|
||||
|
||||
rv = sysmon_task_queue_sched(0, power_event, sc);
|
||||
if (rv) {
|
||||
printf("%s: WARNING: unable to queue power button "
|
||||
"callback: %d\n", sc->sc_dev.dv_xname, rv);
|
||||
}
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
static void
|
||||
reset_event(void *arg)
|
||||
{
|
||||
struct slugbutt_softc *sc = arg;
|
||||
|
||||
sysmon_pswitch_event(&sc->sc_smrst, PSWITCH_EVENT_PRESSED);
|
||||
}
|
||||
|
||||
static int
|
||||
reset_intr(void *arg)
|
||||
{
|
||||
struct slugbutt_softc *sc = arg;
|
||||
int rv;
|
||||
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPISR,
|
||||
1u << GPIO_BUTTON_RST);
|
||||
|
||||
rv = sysmon_task_queue_sched(0, reset_event, sc);
|
||||
if (rv) {
|
||||
printf("%s: WARNING: unable to queue reset button "
|
||||
"callback: %d\n", sc->sc_dev.dv_xname, rv);
|
||||
}
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
static void
|
||||
slugbutt_deferred(struct device *self)
|
||||
{
|
||||
struct slugbutt_softc *sc = (struct slugbutt_softc *) self;
|
||||
struct ixp425_softc *ixsc = ixp425_softc;
|
||||
uint32_t reg;
|
||||
|
||||
/* Configure the GPIO pins as inputs */
|
||||
reg = GPIO_CONF_READ_4(ixsc, IXP425_GPIO_GPOER);
|
||||
reg |= GPIO_BUTTON_PWR | GPIO_BUTTON_RST;
|
||||
GPIO_CONF_WRITE_4(ixsc, IXP425_GPIO_GPOER, reg);
|
||||
|
||||
/* Configure the input type: Falling edge */
|
||||
reg = GPIO_CONF_READ_4(ixsc, GPIO_TYPE_REG(GPIO_BUTTON_PWR));
|
||||
reg &= ~GPIO_TYPE(GPIO_BUTTON_PWR, GPIO_TYPE_MASK);
|
||||
reg |= GPIO_TYPE(GPIO_BUTTON_PWR, GPIO_TYPE_EDG_FALLING);
|
||||
GPIO_CONF_WRITE_4(ixsc, GPIO_TYPE_REG(GPIO_BUTTON_PWR), reg);
|
||||
|
||||
reg = GPIO_CONF_READ_4(ixsc, GPIO_TYPE_REG(GPIO_BUTTON_RST));
|
||||
reg &= ~GPIO_TYPE(GPIO_BUTTON_RST, GPIO_TYPE_MASK);
|
||||
reg |= GPIO_TYPE(GPIO_BUTTON_RST, GPIO_TYPE_EDG_FALLING);
|
||||
GPIO_CONF_WRITE_4(ixsc, GPIO_TYPE_REG(GPIO_BUTTON_RST), reg);
|
||||
|
||||
/* Clear any existing interrupt */
|
||||
GPIO_CONF_WRITE_4(ixsc, IXP425_GPIO_GPISR, (1u << GPIO_BUTTON_PWR) |
|
||||
(1u << GPIO_BUTTON_RST));
|
||||
|
||||
sysmon_task_queue_init();
|
||||
|
||||
sc->sc_smpwr.smpsw_name = sc->sc_dev.dv_xname;
|
||||
sc->sc_smpwr.smpsw_type = PSWITCH_TYPE_POWER;
|
||||
|
||||
if (sysmon_pswitch_register(&sc->sc_smpwr) != 0) {
|
||||
printf("%s: unable to register power button with sysmon\n",
|
||||
sc->sc_dev.dv_xname);
|
||||
return;
|
||||
}
|
||||
|
||||
sc->sc_smrst.smpsw_name = sc->sc_dev.dv_xname;
|
||||
sc->sc_smrst.smpsw_type = PSWITCH_TYPE_RESET;
|
||||
|
||||
if (sysmon_pswitch_register(&sc->sc_smrst) != 0) {
|
||||
printf("%s: unable to register reset button with sysmon\n",
|
||||
sc->sc_dev.dv_xname);
|
||||
return;
|
||||
}
|
||||
|
||||
/* Hook the interrupts */
|
||||
ixp425_intr_establish(BUTTON_PWR_INT, IPL_TTY, power_intr, sc);
|
||||
ixp425_intr_establish(BUTTON_RST_INT, IPL_TTY, reset_intr, sc);
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
slugbutt_match(struct device *parent, struct cfdata *cf, void *arg)
|
||||
{
|
||||
|
||||
return (slugbutt_attached == 0);
|
||||
}
|
||||
|
||||
static void
|
||||
slugbutt_attach(struct device *parent, struct device *self, void *arg)
|
||||
{
|
||||
|
||||
slugbutt_attached = 1;
|
||||
|
||||
aprint_normal(": Power and Reset buttons\n");
|
||||
|
||||
/* Defer, to ensure ixp425_softc has been initialised */
|
||||
config_interrupts(self, slugbutt_deferred);
|
||||
}
|
||||
|
||||
CFATTACH_DECL(slugbutt, sizeof(struct slugbutt_softc),
|
||||
slugbutt_match, slugbutt_attach, NULL, NULL);
|
||||
|
|
@ -0,0 +1,239 @@
|
|||
/* $NetBSD: nslu2_iic.c,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/lock.h>
|
||||
|
||||
#include <machine/bus.h>
|
||||
|
||||
#include <dev/i2c/i2cvar.h>
|
||||
#include <dev/i2c/i2c_bitbang.h>
|
||||
|
||||
#include <arm/xscale/ixp425reg.h>
|
||||
#include <arm/xscale/ixp425var.h>
|
||||
|
||||
#include <evbarm/nslu2/nslu2reg.h>
|
||||
|
||||
struct slugiic_softc {
|
||||
struct device sc_dev;
|
||||
struct i2c_controller sc_ic;
|
||||
struct i2c_bitbang_ops sc_ibo;
|
||||
struct lock sc_lock;
|
||||
uint32_t sc_dirout;
|
||||
};
|
||||
|
||||
static int
|
||||
slugiic_acquire_bus(void *arg, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
if (flags & I2C_F_POLL)
|
||||
return (0);
|
||||
|
||||
return (lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL));
|
||||
}
|
||||
|
||||
static void
|
||||
slugiic_release_bus(void *arg, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
if (flags & I2C_F_POLL)
|
||||
return;
|
||||
|
||||
(void) lockmgr(&sc->sc_lock, LK_RELEASE, NULL);
|
||||
}
|
||||
|
||||
static int
|
||||
slugiic_send_start(void *arg, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
return (i2c_bitbang_send_start(sc, flags, &sc->sc_ibo));
|
||||
}
|
||||
|
||||
static int
|
||||
slugiic_send_stop(void *arg, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
return (i2c_bitbang_send_stop(sc, flags, &sc->sc_ibo));
|
||||
}
|
||||
|
||||
static int
|
||||
slugiic_initiate_xfer(void *arg, i2c_addr_t addr, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
return (i2c_bitbang_initiate_xfer(sc, addr, flags, &sc->sc_ibo));
|
||||
}
|
||||
|
||||
static int
|
||||
slugiic_read_byte(void *arg, uint8_t *vp, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
return (i2c_bitbang_read_byte(sc, vp, flags, &sc->sc_ibo));
|
||||
}
|
||||
|
||||
static int
|
||||
slugiic_write_byte(void *arg, uint8_t v, int flags)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
|
||||
return (i2c_bitbang_write_byte(sc, v, flags, &sc->sc_ibo));
|
||||
}
|
||||
|
||||
static void
|
||||
slugiic_set_dir(void *arg, uint32_t bits)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
uint32_t reg;
|
||||
int s;
|
||||
|
||||
if (sc->sc_dirout == (bits ^ GPIO_I2C_SDA_BIT))
|
||||
return;
|
||||
|
||||
s = splhigh();
|
||||
|
||||
sc->sc_dirout = bits ^ GPIO_I2C_SDA_BIT;
|
||||
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc, IXP425_GPIO_GPOER);
|
||||
reg &= ~GPIO_I2C_SDA_BIT;
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPOER, reg | bits);
|
||||
|
||||
splx(s);
|
||||
}
|
||||
|
||||
static void
|
||||
slugiic_set_bits(void *arg, uint32_t bits)
|
||||
{
|
||||
struct slugiic_softc *sc = arg;
|
||||
uint32_t reg;
|
||||
int s;
|
||||
|
||||
if (sc->sc_dirout == 0 && !(bits & GPIO_I2C_SDA_BIT))
|
||||
bits |= GPIO_I2C_SDA_BIT;
|
||||
|
||||
s = splhigh();
|
||||
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc, IXP425_GPIO_GPOUTR);
|
||||
reg &= ~(GPIO_I2C_SDA_BIT | GPIO_I2C_SCL_BIT);
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPOUTR, reg | bits);
|
||||
|
||||
splx(s);
|
||||
}
|
||||
|
||||
static uint32_t
|
||||
slugiic_read_bits(void *arg)
|
||||
{
|
||||
uint32_t reg;
|
||||
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc, IXP425_GPIO_GPINR);
|
||||
return (reg & (GPIO_I2C_SDA_BIT | GPIO_I2C_SCL_BIT));
|
||||
}
|
||||
|
||||
static void
|
||||
slugiic_deferred_attach(struct device *device)
|
||||
{
|
||||
struct slugiic_softc *sc = (struct slugiic_softc *)device;
|
||||
struct i2cbus_attach_args iba;
|
||||
uint32_t reg;
|
||||
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc, IXP425_GPIO_GPOUTR);
|
||||
reg |= GPIO_I2C_SDA_BIT | GPIO_I2C_SCL_BIT;
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc, IXP425_GPIO_GPOER);
|
||||
reg &= ~GPIO_I2C_SCL_BIT;
|
||||
reg |= GPIO_I2C_SDA_BIT;
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPOER, reg);
|
||||
|
||||
iba.iba_name = "iic";
|
||||
iba.iba_tag = &sc->sc_ic;
|
||||
(void) config_found(&sc->sc_dev, &iba, iicbus_print);
|
||||
}
|
||||
|
||||
static int
|
||||
slugiic_match(struct device *parent, struct cfdata *cf, void *arg)
|
||||
{
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
static void
|
||||
slugiic_attach(struct device *parent, struct device *self, void *arg)
|
||||
{
|
||||
struct slugiic_softc *sc = (struct slugiic_softc *)self;
|
||||
|
||||
aprint_naive("\n");
|
||||
aprint_normal(": I2C bus\n");
|
||||
|
||||
sc->sc_ic.ic_cookie = sc;
|
||||
sc->sc_ic.ic_acquire_bus = slugiic_acquire_bus;
|
||||
sc->sc_ic.ic_release_bus = slugiic_release_bus;
|
||||
sc->sc_ic.ic_exec = NULL;
|
||||
sc->sc_ic.ic_send_start = slugiic_send_start;
|
||||
sc->sc_ic.ic_send_stop = slugiic_send_stop;
|
||||
sc->sc_ic.ic_initiate_xfer = slugiic_initiate_xfer;
|
||||
sc->sc_ic.ic_read_byte = slugiic_read_byte;
|
||||
sc->sc_ic.ic_write_byte = slugiic_write_byte;
|
||||
|
||||
sc->sc_ibo.ibo_set_dir = slugiic_set_dir;
|
||||
sc->sc_ibo.ibo_set_bits = slugiic_set_bits;
|
||||
sc->sc_ibo.ibo_read_bits = slugiic_read_bits;
|
||||
sc->sc_ibo.ibo_bits[I2C_BIT_SDA] = GPIO_I2C_SDA_BIT;
|
||||
sc->sc_ibo.ibo_bits[I2C_BIT_SCL] = GPIO_I2C_SCL_BIT;
|
||||
sc->sc_ibo.ibo_bits[I2C_BIT_OUTPUT] = 0;
|
||||
sc->sc_ibo.ibo_bits[I2C_BIT_INPUT] = GPIO_I2C_SDA_BIT;
|
||||
|
||||
lockinit(&sc->sc_lock, PRIBIO|PCATCH, "slugiiclk", 0, 0);
|
||||
|
||||
sc->sc_dirout = 0;
|
||||
|
||||
/*
|
||||
* Defer until ixp425_softc has been initialised
|
||||
*/
|
||||
config_interrupts(self, slugiic_deferred_attach);
|
||||
}
|
||||
|
||||
CFATTACH_DECL(slugiic, sizeof(struct slugiic_softc),
|
||||
slugiic_match, slugiic_attach, NULL, NULL);
|
||||
|
|
@ -0,0 +1,224 @@
|
|||
/* $NetBSD: nslu2_leds.c,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: nslu2_leds.c,v 1.1 2006/02/28 20:40:33 scw Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/callout.h>
|
||||
#include <sys/disk.h>
|
||||
|
||||
#include <arm/xscale/ixp425var.h>
|
||||
|
||||
#include <evbarm/nslu2/nslu2reg.h>
|
||||
|
||||
#define SLUGLED_NLEDS 2
|
||||
#define SLUGLED_DISKNAMES "sd%d" /* XXX: Make this configurable! */
|
||||
|
||||
#define SLUGLED_POLL (hz/10) /* Poll disks 10 times per second */
|
||||
#define SLUGLED_FLASH_LEN 2 /* How long, in terms of SLUGLED_POLL,
|
||||
to light up an LED */
|
||||
#define SLUGLED_READY_FLASH 3 /* Ditto for flashing Ready LED */
|
||||
|
||||
#define LEDBITS_DISK0 (1u << GPIO_LED_DISK1)
|
||||
#define LEDBITS_DISK1 (1u << GPIO_LED_DISK2)
|
||||
|
||||
/*
|
||||
* The Ready/Status bits control a tricolour LED.
|
||||
* Ready is green, status is red.
|
||||
*/
|
||||
#define LEDBITS_READY (1u << GPIO_LED_READY)
|
||||
#define LEDBITS_STATUS (1u << GPIO_LED_STATUS)
|
||||
|
||||
struct slugled_softc {
|
||||
struct device sc_dev;
|
||||
struct callout sc_co;
|
||||
struct {
|
||||
char sc_dk_name[DK_DISKNAMELEN];
|
||||
struct timeval sc_dk_time;
|
||||
int sc_dk_flash; /* Countdown to LED clear */
|
||||
} sc_dk[SLUGLED_NLEDS];
|
||||
uint32_t sc_state;
|
||||
int sc_count;
|
||||
};
|
||||
|
||||
static int slugled_attached;
|
||||
|
||||
static void
|
||||
slugled_callout(void *arg)
|
||||
{
|
||||
struct slugled_softc *sc = arg;
|
||||
struct timeval t;
|
||||
struct disk *dk;
|
||||
uint32_t reg, bit, new_state;
|
||||
int s, i, dkbusy;
|
||||
|
||||
new_state = sc->sc_state;
|
||||
|
||||
for (i = 0; i < SLUGLED_NLEDS; i++) {
|
||||
bit = i ? LEDBITS_DISK1 : LEDBITS_DISK0;
|
||||
|
||||
s = splbio();
|
||||
if ((dk = disk_find(sc->sc_dk[i].sc_dk_name)) == NULL) {
|
||||
splx(s);
|
||||
if (sc->sc_dk[i].sc_dk_flash > 0) {
|
||||
new_state |= bit;
|
||||
sc->sc_dk[i].sc_dk_flash = 0;
|
||||
sc->sc_dk[i].sc_dk_time = mono_time;
|
||||
}
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
dkbusy = dk->dk_busy;
|
||||
t = dk->dk_timestamp;
|
||||
splx(s);
|
||||
|
||||
if (dkbusy || t.tv_sec != sc->sc_dk[i].sc_dk_time.tv_sec ||
|
||||
t.tv_usec != sc->sc_dk[i].sc_dk_time.tv_usec) {
|
||||
sc->sc_dk[i].sc_dk_flash = SLUGLED_FLASH_LEN;
|
||||
sc->sc_dk[i].sc_dk_time = t;
|
||||
new_state &= ~bit;
|
||||
} else
|
||||
if (sc->sc_dk[i].sc_dk_flash > 0 &&
|
||||
--(sc->sc_dk[i].sc_dk_flash) == 0)
|
||||
new_state |= bit;
|
||||
}
|
||||
|
||||
if ((++(sc->sc_count) % SLUGLED_READY_FLASH) == 0)
|
||||
new_state ^= LEDBITS_READY;
|
||||
|
||||
if (sc->sc_state != new_state) {
|
||||
sc->sc_state = new_state;
|
||||
s = splhigh();
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc, IXP425_GPIO_GPOUTR);
|
||||
reg &= ~(LEDBITS_DISK0 | LEDBITS_DISK1 | LEDBITS_READY);
|
||||
reg |= new_state;
|
||||
GPIO_CONF_WRITE_4(ixp425_softc, IXP425_GPIO_GPOUTR, reg);
|
||||
splx(s);
|
||||
}
|
||||
|
||||
callout_schedule(&sc->sc_co, SLUGLED_POLL);
|
||||
}
|
||||
|
||||
static void
|
||||
slugled_shutdown(void *arg)
|
||||
{
|
||||
struct slugled_softc *sc = arg;
|
||||
uint32_t reg;
|
||||
int s;
|
||||
|
||||
/* Cancel the disk activity callout */
|
||||
s = splsoftclock();
|
||||
callout_stop(&sc->sc_co);
|
||||
splx(s);
|
||||
|
||||
/* Turn off the disk LEDs, and set Ready/Status to red */
|
||||
s = splhigh();
|
||||
reg = GPIO_CONF_READ_4(ixp425_softc,IXP425_GPIO_GPOUTR);
|
||||
reg &= ~LEDBITS_READY;
|
||||
reg |= LEDBITS_DISK0 | LEDBITS_DISK1 | LEDBITS_STATUS;
|
||||
GPIO_CONF_WRITE_4(ixp425_softc,IXP425_GPIO_GPOUTR, reg);
|
||||
splx(s);
|
||||
}
|
||||
|
||||
static void
|
||||
slugled_defer(struct device *self)
|
||||
{
|
||||
struct slugled_softc *sc = (struct slugled_softc *) self;
|
||||
struct ixp425_softc *ixsc = ixp425_softc;
|
||||
uint32_t reg;
|
||||
int i, s;
|
||||
|
||||
s = splhigh();
|
||||
|
||||
/* Configure LED GPIO pins as output */
|
||||
reg = GPIO_CONF_READ_4(ixsc, IXP425_GPIO_GPOER);
|
||||
reg &= ~(LEDBITS_DISK0 | LEDBITS_DISK1);
|
||||
reg &= ~(LEDBITS_READY | LEDBITS_STATUS);
|
||||
GPIO_CONF_WRITE_4(ixsc, IXP425_GPIO_GPOER, reg);
|
||||
|
||||
/* All LEDs off, except Ready LED */
|
||||
reg = GPIO_CONF_READ_4(ixsc, IXP425_GPIO_GPOUTR);
|
||||
reg |= LEDBITS_DISK0 | LEDBITS_DISK1 | LEDBITS_READY;
|
||||
reg &= ~LEDBITS_STATUS;
|
||||
GPIO_CONF_WRITE_4(ixsc, IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
splx(s);
|
||||
|
||||
for (i = 0; i < SLUGLED_NLEDS; i++) {
|
||||
sprintf(sc->sc_dk[i].sc_dk_name, SLUGLED_DISKNAMES, i);
|
||||
sc->sc_dk[i].sc_dk_flash = 0;
|
||||
sc->sc_dk[i].sc_dk_time = mono_time;
|
||||
}
|
||||
|
||||
sc->sc_state = LEDBITS_DISK0 | LEDBITS_DISK1 | LEDBITS_READY;
|
||||
sc->sc_count = 0;
|
||||
|
||||
if (shutdownhook_establish(slugled_shutdown, sc) == NULL)
|
||||
aprint_error("%s: WARNING - Failed to register shutdown hook\n",
|
||||
sc->sc_dev.dv_xname);
|
||||
|
||||
callout_init(&sc->sc_co);
|
||||
callout_setfunc(&sc->sc_co, slugled_callout, sc);
|
||||
callout_schedule(&sc->sc_co, SLUGLED_POLL);
|
||||
}
|
||||
|
||||
static int
|
||||
slugled_match(struct device *parent, struct cfdata *match, void *aux)
|
||||
{
|
||||
|
||||
return (slugled_attached == 0);
|
||||
}
|
||||
|
||||
static void
|
||||
slugled_attach(struct device *parent, struct device *self, void *aux)
|
||||
{
|
||||
|
||||
aprint_normal(": LED support\n");
|
||||
|
||||
slugled_attached = 1;
|
||||
|
||||
config_interrupts(self, slugled_defer);
|
||||
}
|
||||
|
||||
CFATTACH_DECL(slugled, sizeof(struct slugled_softc),
|
||||
slugled_match, slugled_attach, NULL, NULL);
|
||||
|
|
@ -0,0 +1,893 @@
|
|||
/* $NetBSD: nslu2_machdep.c,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 2003
|
||||
* Ichiro FUKUHARA <ichiro@ichiro.org>.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Ichiro FUKUHARA.
|
||||
* 4. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
|
||||
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 1997,1998 Mark Brinicombe.
|
||||
* Copyright (c) 1997,1998 Causality Limited.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Mark Brinicombe
|
||||
* for the NetBSD Project.
|
||||
* 4. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Machine dependant functions for kernel setup for Linksys NSLU2
|
||||
* using RedBoot firmware.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: nslu2_machdep.c,v 1.1 2006/02/28 20:40:33 scw Exp $");
|
||||
|
||||
#include "opt_ddb.h"
|
||||
#include "opt_kgdb.h"
|
||||
#include "opt_pmap_debug.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/exec.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/msgbuf.h>
|
||||
#include <sys/reboot.h>
|
||||
#include <sys/termios.h>
|
||||
#include <sys/ksyms.h>
|
||||
|
||||
#include <uvm/uvm_extern.h>
|
||||
|
||||
#include <dev/cons.h>
|
||||
|
||||
#include <machine/db_machdep.h>
|
||||
#include <ddb/db_sym.h>
|
||||
#include <ddb/db_extern.h>
|
||||
|
||||
#include <machine/bootconfig.h>
|
||||
#include <machine/bus.h>
|
||||
#include <machine/cpu.h>
|
||||
#include <machine/frame.h>
|
||||
#include <arm/undefined.h>
|
||||
|
||||
#include <arm/arm32/machdep.h>
|
||||
|
||||
#include <arm/xscale/ixp425reg.h>
|
||||
#include <arm/xscale/ixp425var.h>
|
||||
#include <arm/xscale/ixp425_sipvar.h>
|
||||
|
||||
#include <evbarm/nslu2/nslu2reg.h>
|
||||
|
||||
#include "com.h"
|
||||
#if NCOM > 0
|
||||
#include <dev/ic/comreg.h>
|
||||
#include <dev/ic/comvar.h>
|
||||
#endif
|
||||
|
||||
#include "opt_ipkdb.h"
|
||||
#include "ksyms.h"
|
||||
|
||||
/* Kernel text starts 2MB in from the bottom of the kernel address space. */
|
||||
#define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000)
|
||||
#define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000)
|
||||
|
||||
/*
|
||||
* The range 0xc1000000 - 0xccffffff is available for kernel VM space
|
||||
* Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff
|
||||
*/
|
||||
#define KERNEL_VM_SIZE 0x0C000000
|
||||
|
||||
|
||||
/*
|
||||
* Address to call from cpu_reset() to reset the machine.
|
||||
* This is machine architecture dependant as it varies depending
|
||||
* on where the ROM appears when you turn the MMU off.
|
||||
*/
|
||||
|
||||
u_int cpu_reset_address = 0x00000000;
|
||||
|
||||
/* Define various stack sizes in pages */
|
||||
#define IRQ_STACK_SIZE 1
|
||||
#define ABT_STACK_SIZE 1
|
||||
#ifdef IPKDB
|
||||
#define UND_STACK_SIZE 2
|
||||
#else
|
||||
#define UND_STACK_SIZE 1
|
||||
#endif
|
||||
|
||||
BootConfig bootconfig; /* Boot config storage */
|
||||
char *boot_args = NULL;
|
||||
char *boot_file = NULL;
|
||||
|
||||
vm_offset_t physical_start;
|
||||
vm_offset_t physical_freestart;
|
||||
vm_offset_t physical_freeend;
|
||||
vm_offset_t physical_end;
|
||||
u_int free_pages;
|
||||
vm_offset_t pagetables_start;
|
||||
int physmem = 0;
|
||||
|
||||
/* Physical and virtual addresses for some global pages */
|
||||
pv_addr_t systempage;
|
||||
pv_addr_t irqstack;
|
||||
pv_addr_t undstack;
|
||||
pv_addr_t abtstack;
|
||||
pv_addr_t kernelstack;
|
||||
pv_addr_t minidataclean;
|
||||
|
||||
vm_offset_t msgbufphys;
|
||||
|
||||
extern u_int data_abort_handler_address;
|
||||
extern u_int prefetch_abort_handler_address;
|
||||
extern u_int undefined_handler_address;
|
||||
extern int end;
|
||||
|
||||
#ifdef PMAP_DEBUG
|
||||
extern int pmap_debug_level;
|
||||
#endif
|
||||
|
||||
#define KERNEL_PT_SYS 0 /* L2 table for mapping zero page */
|
||||
|
||||
#define KERNEL_PT_KERNEL 1 /* L2 table for mapping kernel */
|
||||
#define KERNEL_PT_KERNEL_NUM 4
|
||||
#define KERNEL_PT_IO (KERNEL_PT_KERNEL + KERNEL_PT_KERNEL_NUM)
|
||||
/* L2 tables for mapping kernel VM */
|
||||
#define KERNEL_PT_VMDATA (KERNEL_PT_IO + 1)
|
||||
#define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */
|
||||
#define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM)
|
||||
|
||||
pv_addr_t kernel_pt_table[NUM_KERNEL_PTS];
|
||||
|
||||
struct user *proc0paddr;
|
||||
|
||||
/* Prototypes */
|
||||
|
||||
void consinit(void);
|
||||
u_int cpu_get_control __P((void));
|
||||
|
||||
/*
|
||||
* Define the default console speed for the board. This is generally
|
||||
* what the firmware provided with the board defaults to.
|
||||
*/
|
||||
#ifndef CONSPEED
|
||||
#define CONSPEED B115200
|
||||
#endif /* ! CONSPEED */
|
||||
|
||||
#ifndef CONUNIT
|
||||
#define CONUNIT 0
|
||||
#endif
|
||||
|
||||
#ifndef CONMODE
|
||||
#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB)) | CS8) /* 8N1 */
|
||||
#endif
|
||||
|
||||
int comcnspeed = CONSPEED;
|
||||
int comcnmode = CONMODE;
|
||||
int comcnunit = CONUNIT;
|
||||
|
||||
#if KGDB
|
||||
#ifndef KGDB_DEVNAME
|
||||
#error Must define KGDB_DEVNAME
|
||||
#endif
|
||||
const char kgdb_devname[] = KGDB_DEVNAME;
|
||||
|
||||
#ifndef KGDB_DEVADDR
|
||||
#error Must define KGDB_DEVADDR
|
||||
#endif
|
||||
unsigned long kgdb_devaddr = KGDB_DEVADDR;
|
||||
|
||||
#ifndef KGDB_DEVRATE
|
||||
#define KGDB_DEVRATE CONSPEED
|
||||
#endif
|
||||
int kgdb_devrate = KGDB_DEVRATE;
|
||||
|
||||
#ifndef KGDB_DEVMODE
|
||||
#define KGDB_DEVMODE CONMODE
|
||||
#endif
|
||||
int kgdb_devmode = KGDB_DEVMODE;
|
||||
#endif /* KGDB */
|
||||
|
||||
/*
|
||||
* void cpu_reboot(int howto, char *bootstr)
|
||||
*
|
||||
* Reboots the system
|
||||
*
|
||||
* Deal with any syncing, unmounting, dumping and shutdown hooks,
|
||||
* then reset the CPU.
|
||||
*/
|
||||
void
|
||||
cpu_reboot(int howto, char *bootstr)
|
||||
{
|
||||
|
||||
#ifdef DIAGNOSTIC
|
||||
/* info */
|
||||
printf("boot: howto=%08x curproc=%p\n", howto, curproc);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* If we are still cold then hit the air brakes
|
||||
* and crash to earth fast
|
||||
*/
|
||||
if (cold) {
|
||||
doshutdownhooks();
|
||||
printf("The operating system has halted.\n");
|
||||
printf("Please press any key to reboot.\n\n");
|
||||
cngetc();
|
||||
goto reset;
|
||||
}
|
||||
|
||||
/* Disable console buffering */
|
||||
|
||||
/*
|
||||
* If RB_NOSYNC was not specified sync the discs.
|
||||
* Note: Unless cold is set to 1 here, syslogd will die during the
|
||||
* unmount. It looks like syslogd is getting woken up only to find
|
||||
* that it cannot page part of the binary in as the filesystem has
|
||||
* been unmounted.
|
||||
*/
|
||||
if (!(howto & RB_NOSYNC))
|
||||
bootsync();
|
||||
|
||||
/* Say NO to interrupts */
|
||||
splhigh();
|
||||
|
||||
/* Do a dump if requested. */
|
||||
if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
|
||||
dumpsys();
|
||||
|
||||
/* Run any shutdown hooks */
|
||||
doshutdownhooks();
|
||||
|
||||
/* Make sure IRQ's are disabled */
|
||||
IRQdisable;
|
||||
|
||||
if (howto & RB_HALT) {
|
||||
printf("The operating system has halted.\n");
|
||||
printf("Please press any key to %s.\n\n",
|
||||
(howto & RB_POWERDOWN) ? "power down" : "reboot");
|
||||
cngetc();
|
||||
}
|
||||
|
||||
reset:
|
||||
/*
|
||||
* Make really really sure that all interrupts are disabled,
|
||||
*/
|
||||
(void) disable_interrupts(I32_bit | F32_bit);
|
||||
|
||||
if (howto & RB_POWERDOWN) {
|
||||
uint32_t reg;
|
||||
|
||||
printf("powering down...\n\r");
|
||||
/* Delay to allow the UART's Tx FIFO to drain */
|
||||
delay(50000);
|
||||
|
||||
#define GPRD(r) *((volatile uint32_t *)(IXP425_GPIO_VBASE+(r)))
|
||||
#define GPWR(r,v) *((volatile uint32_t *)(IXP425_GPIO_VBASE+(r))) = (v)
|
||||
|
||||
/*
|
||||
* Power-down pin requires a short pulse
|
||||
*/
|
||||
reg = GPRD(IXP425_GPIO_GPOUTR);
|
||||
reg |= 1u << GPIO_POWER_OFF;
|
||||
GPWR(IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
delay(1000);
|
||||
|
||||
reg = GPRD(IXP425_GPIO_GPOUTR);
|
||||
reg &= ~(1u << GPIO_POWER_OFF);
|
||||
GPWR(IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
delay(500000);
|
||||
printf("POWER OFF FAILED! TRYING TO REBOOT INSTEAD\n\r");
|
||||
}
|
||||
|
||||
printf("rebooting...\n\r");
|
||||
|
||||
#define WDWR(r,v) *((volatile uint32_t *)(IXP425_TIMER_VBASE+(r))) = (v)
|
||||
/* Force a watchdog reset */
|
||||
WDWR(IXP425_OST_WDOG_KEY, OST_WDOG_KEY_MAJICK);
|
||||
WDWR(IXP425_OST_WDOG_ENAB, OST_WDOG_ENAB_RST_ENA);
|
||||
WDWR(IXP425_OST_WDOG, 0x1000);
|
||||
WDWR(IXP425_OST_WDOG_ENAB,
|
||||
OST_WDOG_ENAB_RST_ENA | OST_WDOG_ENAB_CNT_ENA);
|
||||
|
||||
delay(500000);
|
||||
|
||||
/* ...and if that didn't work, just croak. */
|
||||
printf("RESET FAILED!\n");
|
||||
|
||||
for (;;);
|
||||
}
|
||||
|
||||
/* Static device mappings. */
|
||||
static const struct pmap_devmap nslu2_devmap[] = {
|
||||
/* Physical/Virtual address for I/O space */
|
||||
{
|
||||
IXP425_IO_VBASE,
|
||||
IXP425_IO_HWBASE,
|
||||
IXP425_IO_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE,
|
||||
PTE_NOCACHE,
|
||||
},
|
||||
|
||||
/* Expansion Bus */
|
||||
{
|
||||
IXP425_EXP_VBASE,
|
||||
IXP425_EXP_HWBASE,
|
||||
IXP425_EXP_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE,
|
||||
PTE_NOCACHE,
|
||||
},
|
||||
|
||||
/* IXP425 PCI Configuration */
|
||||
{
|
||||
IXP425_PCI_VBASE,
|
||||
IXP425_PCI_HWBASE,
|
||||
IXP425_PCI_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE,
|
||||
PTE_NOCACHE,
|
||||
},
|
||||
|
||||
/* SDRAM Controller */
|
||||
{
|
||||
IXP425_MCU_VBASE,
|
||||
IXP425_MCU_HWBASE,
|
||||
IXP425_MCU_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE,
|
||||
PTE_NOCACHE,
|
||||
},
|
||||
|
||||
/* PCI Memory Space */
|
||||
{
|
||||
IXP425_PCI_MEM_VBASE,
|
||||
IXP425_PCI_MEM_HWBASE,
|
||||
IXP425_PCI_MEM_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE,
|
||||
PTE_NOCACHE,
|
||||
},
|
||||
|
||||
/* Flash memory */
|
||||
{
|
||||
NSLU2_FLASH_VBASE,
|
||||
NSLU2_FLASH_HWBASE,
|
||||
NSLU2_FLASH_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE,
|
||||
PTE_NOCACHE,
|
||||
},
|
||||
|
||||
{
|
||||
0,
|
||||
0,
|
||||
0,
|
||||
0,
|
||||
0,
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
* u_int initarm(...)
|
||||
*
|
||||
* Initial entry point on startup. This gets called before main() is
|
||||
* entered.
|
||||
* It should be responsible for setting up everything that must be
|
||||
* in place when main is called.
|
||||
* This includes
|
||||
* Taking a copy of the boot configuration structure.
|
||||
* Initialising the physical console so characters can be printed.
|
||||
* Setting up page tables for the kernel
|
||||
* Relocating the kernel to the bottom of physical memory
|
||||
*/
|
||||
u_int
|
||||
initarm(void *arg)
|
||||
{
|
||||
extern vaddr_t xscale_cache_clean_addr;
|
||||
#ifdef DIAGNOSTIC
|
||||
extern vsize_t xscale_minidata_clean_size;
|
||||
#endif
|
||||
int loop;
|
||||
int loop1;
|
||||
u_int kerneldatasize;
|
||||
u_int l1pagetable;
|
||||
u_int freemempos;
|
||||
pv_addr_t kernel_l1pt;
|
||||
uint32_t reg;
|
||||
|
||||
/*
|
||||
* Make sure the power-down GPIO pin is configured correctly, as
|
||||
* cpu_reboot() may be called early on (e.g. from within ddb(9)).
|
||||
*/
|
||||
/* Pin is active-high, so make sure it's driven low */
|
||||
reg = GPRD(IXP425_GPIO_GPOUTR);
|
||||
reg &= ~(1u << GPIO_POWER_OFF);
|
||||
GPWR(IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
/* Set as output */
|
||||
reg = GPRD(IXP425_GPIO_GPOER);
|
||||
reg &= ~(1u << GPIO_POWER_OFF);
|
||||
GPWR(IXP425_GPIO_GPOER, reg);
|
||||
|
||||
/*
|
||||
* Since we map v0xf0000000 == p0xc8000000, it's possible for
|
||||
* us to initialize the console now.
|
||||
*/
|
||||
consinit();
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
/* Talk to the user */
|
||||
printf("\nNetBSD/evbarm (Linksys NSLU2) booting ...\n");
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Heads up ... Setup the CPU / MMU / TLB functions
|
||||
*/
|
||||
if (set_cpufuncs())
|
||||
panic("cpu not recognized!");
|
||||
|
||||
/* XXX overwrite bootconfig to hardcoded values */
|
||||
bootconfig.dramblocks = 1;
|
||||
bootconfig.dram[0].address = 0x10000000;
|
||||
bootconfig.dram[0].pages = ixp425_sdram_size() / PAGE_SIZE;
|
||||
|
||||
kerneldatasize = (u_int32_t)&end - (u_int32_t)KERNEL_TEXT_BASE;
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("kernsize=0x%x\n", kerneldatasize);
|
||||
#endif
|
||||
kerneldatasize = ((kerneldatasize - 1) & ~(PAGE_SIZE * 4 - 1)) + PAGE_SIZE * 8;
|
||||
|
||||
/*
|
||||
* Set up the variables that define the availablilty of
|
||||
* physical memory. For now, we're going to set
|
||||
* physical_freestart to 0x10200000 (where the kernel
|
||||
* was loaded), and allocate the memory we need downwards.
|
||||
* If we get too close to the L1 table that we set up, we
|
||||
* will panic. We will update physical_freestart and
|
||||
* physical_freeend later to reflect what pmap_bootstrap()
|
||||
* wants to see.
|
||||
*
|
||||
* XXX pmap_bootstrap() needs an enema.
|
||||
*/
|
||||
physical_start = bootconfig.dram[0].address;
|
||||
physical_end = physical_start + (bootconfig.dram[0].pages * PAGE_SIZE);
|
||||
|
||||
physical_freestart = physical_start
|
||||
+ (KERNEL_TEXT_BASE - KERNEL_BASE) + kerneldatasize;
|
||||
physical_freeend = physical_end;
|
||||
|
||||
physmem = (physical_end - physical_start) / PAGE_SIZE;
|
||||
|
||||
/* Tell the user about the memory */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem,
|
||||
physical_start, physical_end - 1);
|
||||
|
||||
printf("Allocating page tables\n");
|
||||
#endif
|
||||
free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE;
|
||||
|
||||
freemempos = 0x10000000;
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("physical_start = 0x%08lx, physical_end = 0x%08lx\n",
|
||||
physical_start, physical_end);
|
||||
#endif
|
||||
|
||||
/* Define a macro to simplify memory allocation */
|
||||
#define valloc_pages(var, np) \
|
||||
alloc_pages((var).pv_pa, (np)); \
|
||||
(var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start;
|
||||
|
||||
#if 0
|
||||
#define alloc_pages(var, np) \
|
||||
physical_freeend -= ((np) * PAGE_SIZE); \
|
||||
if (physical_freeend < physical_freestart) \
|
||||
panic("initarm: out of memory"); \
|
||||
(var) = physical_freeend; \
|
||||
free_pages -= (np); \
|
||||
memset((char *)(var), 0, ((np) * PAGE_SIZE));
|
||||
#else
|
||||
#define alloc_pages(var, np) \
|
||||
(var) = freemempos; \
|
||||
memset((char *)(var), 0, ((np) * PAGE_SIZE)); \
|
||||
freemempos += (np) * PAGE_SIZE;
|
||||
#endif
|
||||
|
||||
loop1 = 0;
|
||||
kernel_l1pt.pv_pa = 0;
|
||||
for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) {
|
||||
/* Are we 16KB aligned for an L1 ? */
|
||||
if (((physical_freeend - L1_TABLE_SIZE) & (L1_TABLE_SIZE - 1)) == 0
|
||||
&& kernel_l1pt.pv_pa == 0) {
|
||||
valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE);
|
||||
} else {
|
||||
valloc_pages(kernel_pt_table[loop1],
|
||||
L2_TABLE_SIZE / PAGE_SIZE);
|
||||
++loop1;
|
||||
}
|
||||
}
|
||||
|
||||
/* This should never be able to happen but better confirm that. */
|
||||
if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0)
|
||||
panic("initarm: Failed to align the kernel page directory");
|
||||
|
||||
/*
|
||||
* Allocate a page for the system page.
|
||||
* This page will just contain the system vectors and can be
|
||||
* shared by all processes.
|
||||
*/
|
||||
alloc_pages(systempage.pv_pa, 1);
|
||||
|
||||
/* Allocate stacks for all modes */
|
||||
valloc_pages(irqstack, IRQ_STACK_SIZE);
|
||||
valloc_pages(abtstack, ABT_STACK_SIZE);
|
||||
valloc_pages(undstack, UND_STACK_SIZE);
|
||||
valloc_pages(kernelstack, UPAGES);
|
||||
|
||||
/* Allocate enough pages for cleaning the Mini-Data cache. */
|
||||
KASSERT(xscale_minidata_clean_size <= PAGE_SIZE);
|
||||
valloc_pages(minidataclean, 1);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa,
|
||||
irqstack.pv_va);
|
||||
printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa,
|
||||
abtstack.pv_va);
|
||||
printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa,
|
||||
undstack.pv_va);
|
||||
printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa,
|
||||
kernelstack.pv_va);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* XXX Defer this to later so that we can reclaim the memory
|
||||
* XXX used by the RedBoot page tables.
|
||||
*/
|
||||
alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE);
|
||||
|
||||
/*
|
||||
* Ok we have allocated physical pages for the primary kernel
|
||||
* page tables
|
||||
*/
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Now we start construction of the L1 page table
|
||||
* We start by mapping the L2 page tables into the L1.
|
||||
* This means that we can replace L1 mappings later on if necessary
|
||||
*/
|
||||
l1pagetable = kernel_l1pt.pv_pa;
|
||||
|
||||
/* Map the L2 pages tables in the L1 page table */
|
||||
pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1),
|
||||
&kernel_pt_table[KERNEL_PT_SYS]);
|
||||
for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++)
|
||||
pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000,
|
||||
&kernel_pt_table[KERNEL_PT_KERNEL + loop]);
|
||||
for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++)
|
||||
pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000,
|
||||
&kernel_pt_table[KERNEL_PT_VMDATA + loop]);
|
||||
|
||||
/* update the top of the kernel VM */
|
||||
pmap_curmaxkvaddr =
|
||||
KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000);
|
||||
|
||||
pmap_link_l2pt(l1pagetable, IXP425_IO_VBASE,
|
||||
&kernel_pt_table[KERNEL_PT_IO]);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Mapping kernel\n");
|
||||
#endif
|
||||
|
||||
/* Now we fill in the L2 pagetable for the kernel static code/data */
|
||||
{
|
||||
extern char etext[], _end[];
|
||||
size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE;
|
||||
size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE;
|
||||
u_int logical;
|
||||
|
||||
textsize = (textsize + PGOFSET) & ~PGOFSET;
|
||||
totalsize = (totalsize + PGOFSET) & ~PGOFSET;
|
||||
|
||||
logical = 0x00200000; /* offset of kernel in RAM */
|
||||
|
||||
logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, textsize,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, totalsize - textsize,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
}
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Constructing L2 page tables\n");
|
||||
#endif
|
||||
|
||||
/* Map the stack pages */
|
||||
pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa,
|
||||
IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa,
|
||||
ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa,
|
||||
UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa,
|
||||
UPAGES * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
|
||||
pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa,
|
||||
L1_TABLE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE);
|
||||
|
||||
for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) {
|
||||
pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va,
|
||||
kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE);
|
||||
}
|
||||
|
||||
/* Map the Mini-Data cache clean area. */
|
||||
xscale_setup_minidata(l1pagetable, minidataclean.pv_va,
|
||||
minidataclean.pv_pa);
|
||||
|
||||
/* Map the vector page. */
|
||||
pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
|
||||
/*
|
||||
* Map the IXP425 registers
|
||||
*/
|
||||
pmap_devmap_bootstrap(l1pagetable, nslu2_devmap);
|
||||
|
||||
/*
|
||||
* Give the XScale global cache clean code an appropriately
|
||||
* sized chunk of unmapped VA space starting at 0xff000000
|
||||
* (our device mappings end before this address).
|
||||
*/
|
||||
xscale_cache_clean_addr = 0xff000000U;
|
||||
|
||||
/*
|
||||
* Now we have the real page tables in place so we can switch to them.
|
||||
* Once this is done we will be running with the REAL kernel page
|
||||
* tables.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Update the physical_freestart/physical_freeend/free_pages
|
||||
* variables.
|
||||
*/
|
||||
{
|
||||
extern char _end[];
|
||||
|
||||
physical_freestart = physical_start +
|
||||
(((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) -
|
||||
KERNEL_BASE);
|
||||
physical_freeend = physical_end;
|
||||
free_pages =
|
||||
(physical_freeend - physical_freestart) / PAGE_SIZE;
|
||||
}
|
||||
|
||||
/* Switch tables */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n",
|
||||
physical_freestart, free_pages, free_pages);
|
||||
printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa);
|
||||
#endif
|
||||
cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT);
|
||||
setttb(kernel_l1pt.pv_pa);
|
||||
cpu_tlb_flushID();
|
||||
cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2));
|
||||
|
||||
/*
|
||||
* Moved from cpu_startup() as data_abort_handler() references
|
||||
* this during uvm init
|
||||
*/
|
||||
proc0paddr = (struct user *)kernelstack.pv_va;
|
||||
lwp0.l_addr = proc0paddr;
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("bootstrap done.\n");
|
||||
#endif
|
||||
|
||||
arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL);
|
||||
|
||||
/*
|
||||
* Pages were allocated during the secondary bootstrap for the
|
||||
* stacks for different CPU modes.
|
||||
* We must now set the r13 registers in the different CPU modes to
|
||||
* point to these stacks.
|
||||
* Since the ARM stacks use STMFD etc. we must set r13 to the top end
|
||||
* of the stack memory.
|
||||
*/
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("init subsystems: stacks ");
|
||||
#endif
|
||||
|
||||
set_stackptr(PSR_IRQ32_MODE,
|
||||
irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE);
|
||||
set_stackptr(PSR_ABT32_MODE,
|
||||
abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE);
|
||||
set_stackptr(PSR_UND32_MODE,
|
||||
undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE);
|
||||
|
||||
/*
|
||||
* Well we should set a data abort handler.
|
||||
* Once things get going this will change as we will need a proper
|
||||
* handler.
|
||||
* Until then we will use a handler that just panics but tells us
|
||||
* why.
|
||||
* Initialisation of the vectors will just panic on a data abort.
|
||||
* This just fills in a slightly better one.
|
||||
*/
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("vectors ");
|
||||
#endif
|
||||
data_abort_handler_address = (u_int)data_abort_handler;
|
||||
prefetch_abort_handler_address = (u_int)prefetch_abort_handler;
|
||||
undefined_handler_address = (u_int)undefinedinstruction_bounce;
|
||||
|
||||
/* Initialise the undefined instruction handlers */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("undefined ");
|
||||
#endif
|
||||
undefined_init();
|
||||
|
||||
/* Load memory into UVM. */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("page ");
|
||||
#endif
|
||||
uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */
|
||||
uvm_page_physload(atop(physical_freestart), atop(physical_freeend),
|
||||
atop(physical_freestart), atop(physical_freeend),
|
||||
VM_FREELIST_DEFAULT);
|
||||
|
||||
/* Boot strap pmap telling it where the kernel page table is */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("pmap ");
|
||||
#endif
|
||||
pmap_bootstrap((pd_entry_t *)kernel_l1pt.pv_va, KERNEL_VM_BASE,
|
||||
KERNEL_VM_BASE + KERNEL_VM_SIZE);
|
||||
|
||||
/* Setup the IRQ system */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("irq ");
|
||||
#endif
|
||||
ixp425_intr_init();
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("\nAll initialize done!\nNow Starting NetBSD, Hear we go!\n");
|
||||
#endif
|
||||
|
||||
#ifdef BOOTHOWTO
|
||||
boothowto = BOOTHOWTO;
|
||||
#endif
|
||||
|
||||
#ifdef IPKDB
|
||||
/* Initialise ipkdb */
|
||||
ipkdb_init();
|
||||
if (boothowto & RB_KDB)
|
||||
ipkdb_connect(0);
|
||||
#endif
|
||||
|
||||
#if NKSYMS || defined(DDB) || defined(LKM)
|
||||
/* Firmware doesn't load symbols. */
|
||||
ksyms_init(0, NULL, NULL);
|
||||
#endif
|
||||
|
||||
#ifdef DDB
|
||||
db_machine_init();
|
||||
if (boothowto & RB_KDB)
|
||||
Debugger();
|
||||
#endif
|
||||
|
||||
/* We return the new stack pointer address */
|
||||
return(kernelstack.pv_va + USPACE_SVC_STACK_TOP);
|
||||
}
|
||||
|
||||
/*
|
||||
* consinit
|
||||
*/
|
||||
void
|
||||
consinit(void)
|
||||
{
|
||||
static int consinit_called;
|
||||
static const bus_addr_t addrs[2] = {
|
||||
IXP425_UART0_HWBASE, IXP425_UART1_HWBASE
|
||||
};
|
||||
|
||||
if (consinit_called != 0)
|
||||
return;
|
||||
|
||||
consinit_called = 1;
|
||||
|
||||
pmap_devmap_register(nslu2_devmap);
|
||||
|
||||
if (comcnattach(&ixp425_a4x_bs_tag, addrs[comcnunit],
|
||||
comcnspeed, IXP425_UART_FREQ, COM_TYPE_PXA2x0, comcnmode))
|
||||
panic("can't init serial console (UART%d)", comcnunit);
|
||||
}
|
||||
|
|
@ -0,0 +1,66 @@
|
|||
/* $NetBSD: nslu2_mainbus.c,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: nslu2_mainbus.c,v 1.1 2006/02/28 20:40:33 scw Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/device.h>
|
||||
|
||||
#include <machine/autoconf.h>
|
||||
|
||||
#include <arm/xscale/ixp425reg.h>
|
||||
#include <arm/xscale/ixp425var.h>
|
||||
|
||||
static int
|
||||
ixp425_mainbus_match(struct device *parent, struct cfdata *cf, void *arg)
|
||||
{
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
static void
|
||||
ixp425_mainbus_attach(struct device *parent, struct device *self, void *arg)
|
||||
{
|
||||
|
||||
ixp425_attach((struct ixp425_softc *) self);
|
||||
}
|
||||
|
||||
CFATTACH_DECL(ixpio_mainbus, sizeof(struct ixp425_softc),
|
||||
ixp425_mainbus_match, ixp425_mainbus_attach, NULL, NULL);
|
||||
|
|
@ -0,0 +1,294 @@
|
|||
/* $NetBSD: nslu2_pci.c,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 2003
|
||||
* Ichiro FUKUHARA <ichiro@ichiro.org>.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Ichiro FUKUHARA.
|
||||
* 4. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
|
||||
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: nslu2_pci.c,v 1.1 2006/02/28 20:40:33 scw Exp $");
|
||||
|
||||
/*
|
||||
* Linksys NSLU2 PCI support.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/device.h>
|
||||
|
||||
#include <arm/xscale/ixp425reg.h>
|
||||
#include <arm/xscale/ixp425var.h>
|
||||
|
||||
#include <dev/pci/pcivar.h>
|
||||
|
||||
#include <evbarm/nslu2/nslu2reg.h>
|
||||
|
||||
static int
|
||||
nslu2_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
|
||||
{
|
||||
|
||||
KASSERT(pa->pa_bus == 0 && pa->pa_device == 1);
|
||||
|
||||
switch (pa->pa_function) {
|
||||
case 0:
|
||||
*ihp = PCI_INT_A;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
*ihp = PCI_INT_B;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
*ihp = PCI_INT_C;
|
||||
break;
|
||||
|
||||
default:
|
||||
return (1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static const char *
|
||||
nslu2_pci_intr_string(void *v, pci_intr_handle_t ih)
|
||||
{
|
||||
|
||||
switch (ih) {
|
||||
case PCI_INT_A:
|
||||
return ("INTA");
|
||||
|
||||
case PCI_INT_B:
|
||||
return ("INTB");
|
||||
|
||||
case PCI_INT_C:
|
||||
return ("INTC");
|
||||
}
|
||||
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
static const struct evcnt *
|
||||
nslu2_pci_intr_evcnt(void *v, pci_intr_handle_t ih)
|
||||
{
|
||||
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
static void *
|
||||
nslu2_pci_intr_establish(void *v, pci_intr_handle_t ih, int ipl,
|
||||
int (*func)(void *), void *arg)
|
||||
{
|
||||
|
||||
return (ixp425_intr_establish(ih, ipl, func, arg));
|
||||
}
|
||||
|
||||
static void
|
||||
nslu2_pci_intr_disestablish(void *v, void *cookie)
|
||||
{
|
||||
|
||||
ixp425_intr_disestablish(cookie);
|
||||
}
|
||||
|
||||
void
|
||||
ixp425_md_pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin,
|
||||
int swiz, int *ilinep)
|
||||
{
|
||||
|
||||
KASSERT(bus == 0 && dev == 1);
|
||||
|
||||
*ilinep = ((swiz + pin - 1) & 3);
|
||||
}
|
||||
|
||||
void
|
||||
ixp425_md_pci_init(struct ixp425_softc *sc)
|
||||
{
|
||||
pci_chipset_tag_t pc = &sc->ia_pci_chipset;
|
||||
u_int32_t reg;
|
||||
|
||||
pc->pc_intr_v = sc;
|
||||
pc->pc_intr_map = nslu2_pci_intr_map;
|
||||
pc->pc_intr_string = nslu2_pci_intr_string;
|
||||
pc->pc_intr_evcnt = nslu2_pci_intr_evcnt;
|
||||
pc->pc_intr_establish = nslu2_pci_intr_establish;
|
||||
pc->pc_intr_disestablish = nslu2_pci_intr_disestablish;
|
||||
|
||||
/* PCI Reset Assert */
|
||||
reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOUTR);
|
||||
reg &= ~(1u << GPIO_PCI_RESET);
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
/* PCI Clock Disable */
|
||||
reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPCLKR);
|
||||
reg &= ~GPCLKR_MUX14;
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPCLKR, reg);
|
||||
|
||||
/*
|
||||
* Set GPIO Direction
|
||||
* Output: PCI_CLK, PCI_RESET
|
||||
* Input: PCI_INTA, PCI_INTB, PCI_INTC
|
||||
*/
|
||||
reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOER);
|
||||
reg &= ~((1u << GPIO_PCI_CLK) | (1u << GPIO_PCI_RESET));
|
||||
reg |= (1u << GPIO_PCI_INTA) | (1u << GPIO_PCI_INTB) |
|
||||
(1u << GPIO_PCI_INTC);
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOER, reg);
|
||||
|
||||
/*
|
||||
* Set GPIO interrupt type
|
||||
* PCI_INT_A, PCI_INTB, PCI_INT_C: Active Low
|
||||
*/
|
||||
reg = GPIO_CONF_READ_4(sc, GPIO_TYPE_REG(GPIO_PCI_INTA));
|
||||
reg &= ~GPIO_TYPE(GPIO_PCI_INTA, GPIO_TYPE_MASK);
|
||||
reg |= GPIO_TYPE(GPIO_PCI_INTA, GPIO_TYPE_ACT_LOW);
|
||||
GPIO_CONF_WRITE_4(sc, GPIO_TYPE_REG(GPIO_PCI_INTA), reg);
|
||||
|
||||
reg = GPIO_CONF_READ_4(sc, GPIO_TYPE_REG(GPIO_PCI_INTB));
|
||||
reg &= ~GPIO_TYPE(GPIO_PCI_INTB, GPIO_TYPE_MASK);
|
||||
reg |= GPIO_TYPE(GPIO_PCI_INTB, GPIO_TYPE_ACT_LOW);
|
||||
GPIO_CONF_WRITE_4(sc, GPIO_TYPE_REG(GPIO_PCI_INTB), reg);
|
||||
|
||||
reg = GPIO_CONF_READ_4(sc, GPIO_TYPE_REG(GPIO_PCI_INTC));
|
||||
reg &= ~GPIO_TYPE(GPIO_PCI_INTC, GPIO_TYPE_MASK);
|
||||
reg |= GPIO_TYPE(GPIO_PCI_INTC, GPIO_TYPE_ACT_LOW);
|
||||
GPIO_CONF_WRITE_4(sc, GPIO_TYPE_REG(GPIO_PCI_INTC), reg);
|
||||
|
||||
/* Clear ISR */
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPISR, (1u << GPIO_PCI_INTA) |
|
||||
(1u << GPIO_PCI_INTB) | (1u << GPIO_PCI_INTC));
|
||||
|
||||
/* Wait 1ms to satisfy "minimum reset assertion time" of the PCI spec */
|
||||
DELAY(1000);
|
||||
reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPCLKR);
|
||||
reg |= (0xf << GPCLKR_CLK0DC_SHIFT) | (0xf << GPCLKR_CLK0TC_SHIFT);
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPCLKR, reg);
|
||||
|
||||
/* PCI Clock Enable */
|
||||
reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPCLKR);
|
||||
reg |= GPCLKR_MUX14;
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPCLKR, reg);
|
||||
|
||||
/*
|
||||
* Wait 100us to satisfy "minimum reset assertion time from clock stable
|
||||
* requirement of the PCI spec
|
||||
*/
|
||||
DELAY(100);
|
||||
/* PCI Reset deassert */
|
||||
reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOUTR);
|
||||
reg |= 1u << GPIO_PCI_RESET;
|
||||
GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOUTR, reg);
|
||||
|
||||
/*
|
||||
* AHB->PCI address translation
|
||||
* PCI Memory Map allocation in 0x48000000 (64MB)
|
||||
* see. IXP425_PCI_MEM_HWBASE
|
||||
*/
|
||||
PCI_CSR_WRITE_4(sc, PCI_PCIMEMBASE, 0x48494a4b);
|
||||
|
||||
/*
|
||||
* PCI->AHB address translation
|
||||
* begin at the physical memory start + OFFSET
|
||||
*/
|
||||
#define AHB_OFFSET 0x10000000UL
|
||||
reg = (AHB_OFFSET + 0x00000000) >> 0;
|
||||
reg |= (AHB_OFFSET + 0x01000000) >> 8;
|
||||
reg |= (AHB_OFFSET + 0x02000000) >> 16;
|
||||
reg |= (AHB_OFFSET + 0x03000000) >> 24;
|
||||
PCI_CSR_WRITE_4(sc, PCI_AHBMEMBASE, reg);
|
||||
|
||||
/* Write Mapping registers PCI Configuration Registers */
|
||||
/* Base Address 0 - 3 */
|
||||
ixp425_pci_conf_reg_write(sc, PCI_MAPREG_BAR0, AHB_OFFSET + 0x00000000);
|
||||
ixp425_pci_conf_reg_write(sc, PCI_MAPREG_BAR1, AHB_OFFSET + 0x01000000);
|
||||
ixp425_pci_conf_reg_write(sc, PCI_MAPREG_BAR2, AHB_OFFSET + 0x02000000);
|
||||
ixp425_pci_conf_reg_write(sc, PCI_MAPREG_BAR3, AHB_OFFSET + 0x03000000);
|
||||
|
||||
/* Base Address 4 */
|
||||
ixp425_pci_conf_reg_write(sc, PCI_MAPREG_BAR4, 0xffffffff);
|
||||
|
||||
/* Base Address 5 */
|
||||
ixp425_pci_conf_reg_write(sc, PCI_MAPREG_BAR5, 0x00000000);
|
||||
|
||||
/* Assert some PCI errors */
|
||||
PCI_CSR_WRITE_4(sc, PCI_ISR, ISR_AHBE | ISR_PPE | ISR_PFE | ISR_PSE);
|
||||
|
||||
/*
|
||||
* Set up byte lane swapping between little-endian PCI
|
||||
* and the big-endian AHB bus
|
||||
*/
|
||||
PCI_CSR_WRITE_4(sc, PCI_CSR, CSR_IC | CSR_ABE | CSR_PDS);
|
||||
|
||||
/*
|
||||
* Enable bus mastering and I/O,memory access
|
||||
*/
|
||||
ixp425_pci_conf_reg_write(sc, PCI_COMMAND_STATUS_REG,
|
||||
PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
|
||||
PCI_COMMAND_MASTER_ENABLE);
|
||||
|
||||
/*
|
||||
* Wait some more to ensure PCI devices have stabilised.
|
||||
*/
|
||||
DELAY(50000);
|
||||
}
|
||||
|
|
@ -0,0 +1,173 @@
|
|||
/* $NetBSD: nslu2_start.S,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Ichiro FUKUHARA, Jason R. Thorpe, and Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
#include <arm/armreg.h>
|
||||
#include <arm/arm32/pte.h>
|
||||
|
||||
#include <arm/xscale/ixp425reg.h>
|
||||
|
||||
.section .start,"ax",%progbits
|
||||
|
||||
.global _C_LABEL(nslu2_start)
|
||||
_C_LABEL(nslu2_start):
|
||||
/*
|
||||
* We will go ahead and disable the MMU here so that we don't
|
||||
* have to worry about flushing caches, etc.
|
||||
*
|
||||
* Note that we may not currently be running VA==PA, which means
|
||||
* we'll need to leap to the next insn after disabing the MMU.
|
||||
*/
|
||||
adr r8, Lunmapped
|
||||
bic r8, r8, #0xff000000 /* clear upper 8 bits */
|
||||
orr r8, r8, #0x10000000 /* OR in physical base address */
|
||||
|
||||
mrc p15, 0, r2, c1, c0, 0
|
||||
bic r2, r2, #CPU_CONTROL_MMU_ENABLE
|
||||
orr r2, r2, #CPU_CONTROL_BEND_ENABLE
|
||||
mcr p15, 0, r2, c1, c0, 0
|
||||
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
mov pc, r8 /* Heave-ho! */
|
||||
|
||||
Lunmapped:
|
||||
/*
|
||||
* We want to construct a memory map that maps us
|
||||
* VA==PA (SDRAM at 0x10000000). We create these
|
||||
* mappings uncached and unbuffered to be safe.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Step 1: Map the entire address space VA==PA.
|
||||
*/
|
||||
adr r0, Ltable
|
||||
ldr r0, [r0] /* r0 = &l1table */
|
||||
|
||||
mov r1, #(L1_TABLE_SIZE / 4) /* 4096 entry */
|
||||
mov r2, #(L1_S_SIZE) /* 1MB / section */
|
||||
mov r3, #(L1_S_AP(AP_KRW)) /* kernel read/write */
|
||||
orr r3, r3, #(L1_TYPE_S) /* L1 entry is section */
|
||||
1:
|
||||
str r3, [r0], #0x04
|
||||
add r3, r3, r2
|
||||
subs r1, r1, #1
|
||||
bgt 1b
|
||||
|
||||
/*
|
||||
* Step 2: Map VA 0xc0000000->0xc3ffffff to PA 0x10000000->0x13ffffff.
|
||||
*/
|
||||
adr r0, Ltable /* r0 = &l1table */
|
||||
ldr r0, [r0]
|
||||
|
||||
mov r3, #(L1_S_AP(AP_KRW))
|
||||
orr r3, r3, #(L1_TYPE_S)
|
||||
orr r3, r3, #0x10000000
|
||||
add r0, r0, #(0xc00 * 4) /* offset to 0xc00xxxxx */
|
||||
mov r1, #0x40 /* 64MB */
|
||||
1:
|
||||
str r3, [r0], #0x04
|
||||
add r3, r3, r2
|
||||
subs r1, r1, #1
|
||||
bgt 1b
|
||||
|
||||
/*
|
||||
* Step 3: Map VA 0xf0000000->0xf0100000 to PA 0xc8000000->0xc8100000.
|
||||
*/
|
||||
adr r0, Ltable /* r0 = &l1table */
|
||||
ldr r0, [r0]
|
||||
|
||||
add r0, r0, #(0xf00 * 4) /* offset to 0xf0000000 */
|
||||
mov r3, #0xc8000000
|
||||
add r3, r3, #0x00100000
|
||||
orr r3, r3, #(L1_S_AP(AP_KRW))
|
||||
orr r3, r3, #(L1_TYPE_S)
|
||||
str r3, [r0]
|
||||
|
||||
/*
|
||||
* Step 4: Map VA 0xf0200000->0xf0300000 to PA 0xcc000000->0xcc100000.
|
||||
*/
|
||||
adr r0, Ltable /* r0 = &l1table */
|
||||
ldr r0, [r0]
|
||||
|
||||
add r0, r0, #(0xf00 * 4) /* offset to 0xf0200000 */
|
||||
add r0, r0, #(0x002 * 4)
|
||||
mov r3, #0xcc000000
|
||||
add r3, r3, #0x00100000
|
||||
orr r3, r3, #(L1_S_AP(AP_KRW))
|
||||
orr r3, r3, #(L1_TYPE_S)
|
||||
str r3, [r0]
|
||||
|
||||
/* OK! Page table is set up. Give it to the CPU. */
|
||||
adr r0, Ltable
|
||||
ldr r0, [r0]
|
||||
mcr p15, 0, r0, c2, c0, 0
|
||||
|
||||
/* Flush the old TLBs, just in case. */
|
||||
mcr p15, 0, r0, c8, c7, 0
|
||||
|
||||
/* Set the Domain Access register. Very important! */
|
||||
mov r0, #1
|
||||
mcr p15, 0, r0, c3, c0, 0
|
||||
|
||||
/* Get ready to jump to the "real" kernel entry point... */
|
||||
ldr r1, Lstart
|
||||
mov r1, r1 /* Make sure the load completes! */
|
||||
|
||||
/* OK, let's enable the MMU. */
|
||||
mrc p15, 0, r2, c1, c0, 0
|
||||
orr r2, r2, #CPU_CONTROL_MMU_ENABLE
|
||||
orr r2, r2, #CPU_CONTROL_BEND_ENABLE
|
||||
mcr p15, 0, r2, c1, c0, 0
|
||||
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
/* CPWAIT sequence to make sure the MMU is on... */
|
||||
mrc p15, 0, r2, c2, c0, 0 /* arbitrary read of CP15 */
|
||||
mov r2, r2 /* force it to complete */
|
||||
mov pc, r1 /* leap to kernel entry point! */
|
||||
|
||||
Ltable:
|
||||
.word 0x10200000 - 0x4000
|
||||
|
||||
Lstart:
|
||||
.word start
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
/* $NetBSD: nslu2reg.h,v 1.1 2006/02/28 20:40:33 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Steve C. Woodford.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef _NSLU2REG_H_
|
||||
#define _NSLU2REG_H_
|
||||
|
||||
/*
|
||||
* PCI GPIO Assignments
|
||||
*/
|
||||
#define GPIO_PCI_INTC 9 /* GPIO[9]: PCI INTC [Input] */
|
||||
#define PCI_INT_C IXP425_INT_GPIO_9
|
||||
#define GPIO_PCI_INTB 10 /* GPIO[10]: PCI INTB [Input] */
|
||||
#define PCI_INT_B IXP425_INT_GPIO_10
|
||||
#define GPIO_PCI_INTA 11 /* GPIO[11]: PCI INTA [Input] */
|
||||
#define PCI_INT_A IXP425_INT_GPIO_11
|
||||
#define GPIO_PCI_RESET 13 /* GPIO[13]: PCI Reset [Output] */
|
||||
#define GPIO_PCI_CLK 14 /* GPIO[14]: 33MHz PCI Clock [Output] */
|
||||
|
||||
/*
|
||||
* I2C Bus GPIO Assignments
|
||||
*/
|
||||
#define GPIO_I2C_SCL 6 /* GPIO[6]: I2c Clock [Output] */
|
||||
#define GPIO_I2C_SCL_BIT (1u << 6)
|
||||
#define GPIO_I2C_SDA 7 /* GPIO[7]: I2C Data [Tristate] */
|
||||
#define GPIO_I2C_SDA_BIT (1u << 7)
|
||||
|
||||
/*
|
||||
* LED GPIO Assignments
|
||||
*/
|
||||
#define GPIO_LED_STATUS 0 /* GPIO[0]: Status LED [Output, active high] */
|
||||
#define GPIO_LED_READY 1 /* GPIO[1]: Ready LED [Output, active high] */
|
||||
#define GPIO_LED_DISK2 2 /* GPIO[2]: Disk 2 LED [Output, active low] */
|
||||
#define GPIO_LED_DISK1 3 /* GPIO[3]: Disk 1 LED [Output, active low] */
|
||||
|
||||
/*
|
||||
* Button GPIO Assignments
|
||||
*/
|
||||
#define GPIO_BUTTON_PWR 5 /* GPIO[5]: Power button [Input, pulsed] */
|
||||
#define BUTTON_PWR_INT IXP425_INT_GPIO_5
|
||||
#define GPIO_BUTTON_RST 12 /* GPIO[12]: Reset button [Input, active low] */
|
||||
#define BUTTON_RST_INT IXP425_INT_GPIO_12
|
||||
|
||||
/*
|
||||
* Miscellaneous GPIO Assignments
|
||||
*/
|
||||
#define GPIO_BUZZER 4 /* GPIO[4]: Buzzer [Output] */
|
||||
#define GPIO_POWER_OFF 8 /* GPIO[8]: Power Off [Output, Active high] */
|
||||
#define GPIO_EXP_CLOCK 15 /* GPIO[15]: Expandion bus clock [Output] */
|
||||
|
||||
|
||||
/*
|
||||
* Flash memory
|
||||
*/
|
||||
#define NSLU2_FLASH_HWBASE 0x50000000
|
||||
#define NSLU2_FLASH_VBASE 0xfc000000
|
||||
#define NSLU2_FLASH_SIZE 0x00800000
|
||||
|
||||
/*
|
||||
* Interesting locations in Flash
|
||||
*/
|
||||
#define NSLU2_FLASH_ETHERNET_MAC (NSLU2_FLASH_VBASE + 0x3ffb0)
|
||||
|
||||
#endif /* _NSLU2REG_H_ */
|
||||
Loading…
Reference in New Issue