Hi, Dts files are not used with arch/ppc.
In arch/ppc, the drivers that are in the system depend on the arch/ppc/platforms/4xx/xparameters/xparameters_ml405.h to setup the addresses of the devices and their configuration. I looked at the ML405 setup in the git tree and it appears that it would need to be added to arch/ppc/syslib/virtex_devices.c. The platform data in virtex_devices.c must include the GPIO for it to be probed correctly. It should be easy for you to add the data to make it work. I see a GPIO in the xparameters*.h for the LEDs. Thanks, John -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Guillaume Dargaud Sent: Friday, May 16, 2008 2:16 AM To: linuxppc-dev@ozlabs.org Subject: Re: Using GPIO > If you're using arch/powerpc, my understanding is that > CONFIG_XILINX_GPIO needs to be enabled as well as having the right info > in the dts file. I'm using arch/ppc, so excuse my ignorance but what are dts files ? I see arch/powerpc/boot/dts/ml405.dts in the kernel tree which would need some changes, but it looks like a generated file. Generated by what ? > If you're using arch/ppc, I believe you just need CONFIG_XILINX_GPIO > enabled. > When the system boots up, you see a message on the console when the GPIO > driver initializes. That's what I'm trying to use, but there's no gpio info in the messages. Here's a copy: Linux version 2.6.25-rc9 ([EMAIL PROTECTED]) (gcc version 4.1.2) #27 Thu May 15 18:40:17 CEST 2008 Xilinx Generic PowerPC board support package (Xilinx ML405) (Virtex-4 FX) Entering add_active_range(0, 0, 32768) 0 entries of 256 used Zone PFN ranges: DMA 0 -> 32768 Normal 32768 -> 32768 Movable zone start PFN for each node active PFN ranges 0: 0 -> 32768 On node 0 totalpages: 32768 DMA zone: 256 pages used for memmap DMA zone: 0 pages reserved DMA zone: 32512 pages, LIFO batch:7 Normal zone: 0 pages used for memmap Movable zone: 0 pages used for memmap Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 Kernel command line: console=ttyUL0,115200 rw root=/dev/nfs ip=bootp Xilinx INTC #0 at 0x81800000 mapped to 0xFDFFF000 PID hash table entries: 512 (order: 9, 2048 bytes) Console: colour dummy device 80x25 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 127872k available (1516k kernel code, 460k data, 80k init, 0k highmem) Calibrating delay loop... 298.40 BogoMIPS (lpj=496640) Mount-cache hash table entries: 512 net_namespace: 152 bytes NET: Registered protocol family 16 Registering device uartlite:0 Registering device xsysace:0 Fixup MAC address for xilinx_lltemac:0 Registering device xilinx_lltemac:0 Registering device xilinx_iic:0 NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 4096 (order: 3, 32768 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash tables configured (established 4096 bind 4096) TCP reno registered io scheduler noop registered (default) uartlite.0: ttyUL0 at MMIO 0x84000003 (irq = 8) is a uartlite enabled loop: module loaded xsysace xsa: Xilinx SystemACE revision 1.0.12 xsysace xsa: capacity: 1014048 sectors xsa: xsa1 xsa2 Xilinx SystemACE device driver, major=254 xilinx_lltemac xilinx_lltemac.0: MAC address is now 0: a:35: 1: 2: 3 xilinx_lltemac xilinx_lltemac.0: XLlTemac: using DMA mode. XLlTemac: Dma base address: phy: 0x84600100, virt: 0xc9008100 XLlTemac: buffer descriptor size: 32768 (0x8000) XLlTemac: Allocating DMA descriptors with kmalloc<6>XLlTemac: (buffer_descriptor_init) phy: 0x7ca8000, virt: 0xc7ca8000, size: 0x8000 XTemac: PHY detected at address 7. eth0: Dropping NETIF_F_SG since no checksum feature. xilinx_lltemac xilinx_lltemac.0: eth0: Xilinx TEMAC at 0x81C00000 mapped to 0xC9004000, irq=2 mice: PS/2 mouse device common for all mice xilinx_iic.0 #0 at 0x81600000 mapped to 0xC9020000, irq=4 TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. eth0: XLlTemac: Options: 0x3fa eth0: XLlTemac: allocating interrupt 0 for dma mode tx. eth0: XLlTemac: allocating interrupt 1 for dma mode rx. eth0: XLlTemac: speed set to 100Mb/s eth0: XLlTemac: Send Threshold = 24, Receive Threshold = 4 eth0: XLlTemac: Send Wait bound = 254, Receive Wait bound = 254 Sending BOOTP requests . OK IP-Config: Got BOOTP answer from 192.168.1.185, my address is 192.168.1.200 IP-Config: Complete: device=eth0, addr=192.168.1.200, mask=255.255.255.0, gw=192.168.1.185, host=genepy, domain=, nis-domain=(none), bootserver=192.168.1.185, rootserver=192.168.1.185, rootpath=/media/rootfs Looking up port of RPC 100003/2 on 192.168.1.185 Looking up port of RPC 100005/1 on 192.168.1.185 VFS: Mounted root (nfs filesystem). Freeing unused kernel memory: 80k init ...and the boot proceeds fine. And a cleaned-up .config: CONFIG_WORD_SIZE=32 CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_PPC=y CONFIG_PPC32=y CONFIG_GENERIC_NVRAM=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_GENERIC_BUG=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_LOCALVERSION="" CONFIG_LOG_BUF_SHIFT=14 CONFIG_NAMESPACES=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLAB=y CONFIG_HAVE_OPROFILE=y CONFIG_HAVE_KPROBES=y CONFIG_PROC_PAGE_MONITOR=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 CONFIG_BLOCK=y CONFIG_IOSCHED_NOOP=y CONFIG_DEFAULT_NOOP=y CONFIG_DEFAULT_IOSCHED="noop" CONFIG_CLASSIC_RCU=y CONFIG_40x=y CONFIG_PPC_DCR_NATIVE=y CONFIG_PPC_DCR=y CONFIG_KEXEC=y CONFIG_4xx=y CONFIG_XILINX_ML405=y CONFIG_IBM405_ERR77=y CONFIG_IBM405_ERR51=y CONFIG_XILINX_MLxxx=y CONFIG_XILINX_VIRTEX_4_FX=y CONFIG_XILINX_VIRTEX=y CONFIG_XILINX_EMBED_CONFIG=y CONFIG_EMBEDDEDBOOT=y CONFIG_PPC_GEN550=y CONFIG_UART0_TTYS0=y CONFIG_NOT_COHERENT_CACHE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_HZ_300=y CONFIG_HZ=300 CONFIG_PREEMPT_VOLUNTARY=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y CONFIG_BINFMT_ELF=y CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyUL0,115200 rw root=/dev/nfs ip=bootp" CONFIG_ISA_DMA_API=y CONFIG_ZONE_DMA=y CONFIG_HIGHMEM_START=0xfe000000 CONFIG_LOWMEM_SIZE=0x30000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_TASK_SIZE=0x80000000 CONFIG_CONSISTENT_START=0xff100000 CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_BOOT_LOAD=0x00400000 CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_FIB_HASH=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_BLK_DEV=y CONFIG_BLK_DEV_LOOP=y CONFIG_XILINX_SYSACE=y CONFIG_XILINX_DRIVERS=y CONFIG_NEED_XILINX_LLDMA=y CONFIG_HAVE_IDE=y CONFIG_NETDEVICES=y CONFIG_NETDEV_1000=y CONFIG_XILINX_LLTEMAC=y CONFIG_XILINX_LLTEMAC_MARVELL_88E1111_GMII=y CONFIG_INPUT=y CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y CONFIG_SERIAL_UARTLITE=y CONFIG_SERIAL_UARTLITE_CONSOLE=y CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_XILINX_GPIO=y CONFIG_XILINX_HWICAP=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y CONFIG_XILINX_IIC=y CONFIG_SSB_POSSIBLE=y CONFIG_DUMMY_CONSOLE=y CONFIG_XILINX_EDK=y CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_PROC_SYSCTL=y CONFIG_SYSFS=y CONFIG_CONFIGFS_FS=y CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y CONFIG_ROOT_NFS=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y CONFIG_MSDOS_PARTITION=y CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_PRINTK_TIME=y CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_DEBUG_KERNEL=y CONFIG_DETECT_SOFTLOCKUP=y CONFIG_SCHED_DEBUG=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_INFO=y -- Guillaume Dargaud http://www.gdargaud.net/ _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. 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