On Fri, Sep 25, 2009 at 2:58 AM, Wolfram Sang <w.sang@xxxxxxxxxxxxxx> wrote: > Looking at the probe-routine, this means request_irq failed? Is there something > else needed to get that irq? Sorry about that. I had inadvertently removed CONFIG_CPU_IXP46X causing NR_IRQS to be set to low. However, it still does not work with your patch. In the dump below I see: [ 0.250000] i2c-core: driver [dummy] registered ... [ 0.290000] i2c-adapter i2c-0: adapter [IOP3xx-I2C] registered ... [ 3.780000] i2c-core: driver [rtc-m41t80] registered [ 3.790000] i2c /dev entries driver [ 3.790000] i2c-core: driver [dev_driver] registered [ 3.800000] i2c-dev: adapter [IOP3xx-I2C] registered as minor 0 [ 3.800000] i2c-core: driver [lm75] registered [ 3.830000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x48 ... [ 4.050000] drivers/rtc/hctosys.c: unable to open rtc device (rtc0) Full dump: [ 0.000000] Linux version 2.6.31-isc (ringlej@xxxxxxxxxxxxxx) (gcc version 4.3.2 (OSELAS.Toolchain-1.99.3) ) #4 PREEMPT Fri Sep 25 10:35:53 EDT 2009 [ 0.000000] CPU: XScale-IXP46x Family [69054202] revision 2 (ARMv5TE), cr=000039ff [ 0.000000] CPU: VIVT data cache, VIVT instruction cache [ 0.000000] Machine: Vertical RSC4 board [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] On node 0 totalpages: 65536 [ 0.000000] free_area_init_node: node 0, pgdat c0557a8c, node_mem_map c4000000 [ 0.000000] DMA zone: 128 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 16256 pages, LIFO batch:3 [ 0.000000] Normal zone: 384 pages used for memmap [ 0.000000] Normal zone: 48768 pages, LIFO batch:15 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024 [ 0.000000] Kernel command line: console=ttyS0,115200 maclist_ids=00:10:f4:04:09:b4 boot=jffs2 loglevel=8 dynamic_printk [ 0.000000] maclist_setup(00:10:f4:04:09:b4) [ 0.000000] maclist_add(00:10:f4:04:09:b4) [ 0.000000] PID hash table entries: 1024 (order: 10, 4096 bytes) [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] Memory: 256MB = 256MB total [ 0.000000] Memory: 253756KB available (3796K code, 301K data, 1404K init, 0K highmem) [ 0.000000] SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS:64 [ 0.000000] Calibrating delay loop... 532.48 BogoMIPS (lpj=2662400) [ 0.250000] Security Framework initialized [ 0.250000] Mount-cache hash table entries: 512 [ 0.250000] CPU: Testing write buffer coherency: ok [ 0.250000] NET: Registered protocol family 16 [ 0.250000] i2c-core: driver [dummy] registered [ 0.250000] IXP4xx: Using 32MiB expansion bus window size [ 0.260000] PCI: IXP4xx is target - No bus scan performed [ 0.270000] PCI: IXP4xx Using direct access for memory space [ 0.290000] bio: create slab <bio-0> at 0 [ 0.290000] usbcore: registered new interface driver usbfs [ 0.290000] usbcore: registered new interface driver hub [ 0.290000] usbcore: registered new device driver usb [ 0.290000] i2c-adapter i2c-0: adapter [IOP3xx-I2C] registered [ 0.300000] Switched to high resolution mode on CPU 0 [ 0.300000] NET: Registered protocol family 2 [ 0.300000] IP route cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.300000] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.300000] TCP bind hash table entries: 8192 (order: 3, 32768 bytes) [ 0.300000] TCP: Hash tables configured (established 8192 bind 8192) [ 0.300000] TCP reno registered [ 0.300000] NET: Registered protocol family 1 [ 2.850000] IXP4xx Queue Manager initialized. [ 2.860000] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 2.860000] JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc. [ 2.860000] aufs 2-31 [ 2.860000] msgmni has been set to 496 [ 2.860000] alg: No test for cipher_null (cipher_null-generic) [ 2.860000] alg: No test for ecb(cipher_null) (ecb-cipher_null) [ 2.860000] alg: No test for digest_null (digest_null-generic) [ 2.860000] alg: No test for compress_null (compress_null-generic) [ 2.870000] alg: No test for stdrng (krng) [ 2.870000] io scheduler noop registered (default) [ 3.380000] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled [ 3.390000] serial8250.0: ttyS0 at MMIO 0xc8000000 (irq = 15) is a XScale [ 3.390000] console [ttyS0] enabled [ 3.720000] serial8250.0: ttyS1 at MMIO 0xc8001000 (irq = 13) is a XScale [ 3.740000] IXP4xx MII Bus: probed [ 3.740000] eth0: MII PHY 3 on NPE-B [ 3.750000] usbcore: registered new interface driver usbserial [ 3.750000] USB Serial support registered for generic [ 3.760000] usbcore: registered new interface driver usbserial_generic [ 3.760000] usbserial: USB Serial Driver core [ 3.770000] pxa25x_udc: version 30-June-2007 [ 3.770000] pxa25x_udc: unrecognized processor: 69054202 [ 3.780000] i2c-core: driver [rtc-m41t80] registered [ 3.790000] i2c /dev entries driver [ 3.790000] i2c-core: driver [dev_driver] registered [ 3.800000] i2c-dev: adapter [IOP3xx-I2C] registered as minor 0 [ 3.800000] i2c-core: driver [lm75] registered [ 3.830000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x48 [ 3.840000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x48, len=0 [ 3.840000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x48, len=1 [ 3.850000] i2c-adapter i2c-0: master_xfer[1] R, addr=0x48, len=2 [ 3.850000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x48, len=1 [ 3.860000] i2c-adapter i2c-0: master_xfer[1] R, addr=0x48, len=1 [ 3.870000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x48, len=1 [ 3.870000] i2c-adapter i2c-0: master_xfer[1] R, addr=0x48, len=2 [ 3.880000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x48, len=1 [ 3.890000] i2c-adapter i2c-0: master_xfer[1] R, addr=0x48, len=2 [ 3.890000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x49 [ 3.900000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x49, len=0 [ 3.910000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x4a [ 3.910000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x4a, len=0 [ 3.920000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x4b [ 3.930000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x4b, len=0 [ 3.930000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x4c [ 3.940000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x4c, len=0 [ 3.950000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x4d [ 3.950000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x4d, len=0 [ 3.960000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x4e [ 3.970000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x4e, len=0 [ 3.970000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x4f [ 3.980000] i2c-adapter i2c-0: master_xfer[0] W, addr=0x4f, len=0 [ 3.990000] IXP4xx Watchdog Timer: heartbeat 60 sec [ 3.990000] TCP cubic registered [ 3.990000] NET: Registered protocol family 10 [ 4.000000] lo: Disabled Privacy Extensions [ 4.000000] NET: Registered protocol family 17 [ 4.010000] Bridge firewalling registered [ 4.010000] RPC: Registered udp transport module. [ 4.020000] RPC: Registered tcp transport module. [ 4.020000] 802.1Q VLAN Support v1.8 Ben Greear <greearb@xxxxxxxxxxxxxxx> [ 4.030000] All bugs added by David S. Miller <davem@xxxxxxxxxx> [ 4.040000] XScale DSP coprocessor detected. [ 4.040000] start led_timer [ 4.050000] drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 4.050000] Freeing init memory: 1404K -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
