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Message-ID: <1407923215-3749-1-git-send-email-yao.yuan@freescale.com> Date: Wed, 13 Aug 2014 17:46:53 +0800 From: Yuan Yao <yao.yuan@...escale.com> To: <wsa@...-dreams.de>, <marex@...x.de> CC: <LW@...O-electronics.de>, <mark.rutland@....com>, <fugang.duan@...escale.com>, <shawn.guo@...aro.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-i2c@...r.kernel.org> Subject: [PATCH v7 0/2] i2c: imx: add DMA support for freescale i2c driver Changed in v7: - when waiting for transfer complete use schedule() instead of udelay(). Changed in v6: - changed the inappropriate print message. - rebase to the latest code. Changed in v5: - add "*chan_dev = dma->chan_using->device->dev" for code cleanup. - add the test logs. Changed in v4: - cancelled "i2c_imx->use_dma". - changed "Dma" to "DMA". - add Timeout handling for Transfer complete. Changed in v3: - fix a bug when request the dma faild. - some minor fixes for coding style. - other minor fixes. Changed in v2: - remove has_dma_support property - unify i2c_imx_dma_rx and i2c_imx_dma_tx - unify i2c_imx_dma_read and i2c_imx_pio_read - unify i2c_imx_dma_write and i2c_imx_pio_write Added in v1: - Enable dma if it's support dma and transfer size bigger than the threshold. - Add device tree bindings for i2c eDMA support. - Add eDMA support for i2c driver. Test log for imx i2c: 8/13/2014 U-Boot 2014.01-00667-g90a68ca (Jul 31 2014 - 16:46:21) CPU: Freescale LayerScape SLS1020, Version: 1.0, (0x87080010) Clock Configuration: CPU0(ARMV7):1000 MHz, Bus:300 MHz, DDR:800 MHz (1600 MT/s data rate), Reset Configuration Word (RCW): 00000000: 0608000a 00000000 00000000 00000000 00000010: 20000000 00407900 e0025a00 21046000 00000020: 00000000 00000000 00000000 00038000 00000030: 00000000 881b7540 00000000 00000000 Board: LS1021ATWR CPLD: V1.1 PCBA: V2.0 VBank: 0 I2C: ready DRAM: 1 GiB (DDR3, 32-bit, CL=10, ECC off) Using SERDES1 Protocol: 32 (0x20) Flash: 128 MiB MMC: FSL_SDHC: 0 EEPROM: Invalid ID (00 00 00 00) Not a microcode In: serial Out: serial Err: serial SATA link 0 timeout. AHCI 0001.0300 1 slots 1 ports ? Gbps 0x1 impl SATA mode flags: 64bit ncq pm clo only pmp fbss pio slum part ccc scanning bus for devices... Found 0 device(s). Net: eTSEC1 is in sgmii mode. eTSEC2 is in sgmii mode. eTSEC1 [PRIME], eTSEC2, eTSEC3 Hit any key to stop autoboot: 0 => run yyboot Speed: 1000, full duplex BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 BOOTP broadcast 4 BOOTP broadcast 5 *** Unhandled DHCP Option in OFFER/ACK: 44 *** Unhandled DHCP Option in OFFER/ACK: 46 *** Unhandled DHCP Option in OFFER/ACK: 44 *** Unhandled DHCP Option in OFFER/ACK: 46 DHCP client bound to address 10.193.20.100 Using eTSEC1 device TFTP from server 10.193.20.106; our IP address is 10.193.20.100 Filename 'yuanyao/uImage.ls1'. Load address: 0x82000000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ##########################T T ####################################### ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ############# 497.1 KiB/s done Bytes transferred = 6385952 (617120 hex) Speed: 1000, full duplex Using eTSEC1 device TFTP from server 10.193.20.106; our IP address is 10.193.20.100 Filename 'yuanyao/ls1021a-twr.dtb'. Load address: 0x8f000000 Loading: ##### 2.1 MiB/s done Bytes transferred = 21545 (5429 hex) Speed: 1000, full duplex Using eTSEC1 device TFTP from server 10.193.20.106; our IP address is 10.193.20.100 Filename 'yuanyao/Ramdisk.uboot'. Load address: 0x88000000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ##################################### 2.4 MiB/s done Bytes transferred = 19156457 (1244de9 hex) ## Booting kernel from Legacy Image at 82000000 ... Image Name: Linux Kernel Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 6385888 Bytes = 6.1 MiB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK ## Loading init Ramdisk from Legacy Image at 88000000 ... Image Name: fsl-image-core-ls1021atwr-201406 Image Type: ARM Linux RAMDisk Image (gzip compressed) Data Size: 19156393 Bytes = 18.3 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 8f000000 Booting using the fdt blob at 0x8f000000 Loading Kernel Image ... OK Loading Ramdisk to bdcf9000, end bef3dda9 ... OK Loading Device Tree to bdcf0000, end bdcf8428 ... OK Starting kernel ... Booting Linux on physical CPU 0xf00 Linux version 3.12.0+ (b46683@...k) (gcc version 4.8.3 20131202 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2013.12 - Linaro GCC 2013.11) ) #222 SMP Wed Aug 13 16:08:49 CST 2014 CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=30c73c7d CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache Machine: Freescale Layerscape LS1021A, model: LS1021A TWR Board Memory policy: ECC disabled, Data cache writealloc PERCPU: Embedded 7 pages/cpu @88811000 s7680 r8192 d12800 u32768 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096 Kernel command line: root=/dev/ram0 rw console=ttyS0,115200 PID hash table entries: 4096 (order: 2, 16384 bytes) Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) Memory: 1014224K/1048576K available (4463K kernel code, 244K rwdata, 1316K rodata, 207K init, 222K bss, 34352K reserved, 0K highmem) Virtual kernel memory layout: vector : 0xffff0000 - 0xffff1000 ( 4 kB) fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) vmalloc : 0xc0800000 - 0xff000000 (1000 MB) lowmem : 0x80000000 - 0xc0000000 (1024 MB) pkmap : 0x7fe00000 - 0x80000000 ( 2 MB) modules : 0x7f000000 - 0x7fe00000 ( 14 MB) .text : 0x80008000 - 0x805acf74 (5780 kB) .init : 0x805ad000 - 0x805e0e00 ( 208 kB) .data : 0x805e2000 - 0x8061f0d8 ( 245 kB) .bss : 0x8061f0e0 - 0x80656ca8 ( 223 kB) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 Hierarchical RCU implementation. RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2. NR_IRQS:16 nr_irqs:16 16 Architected cp15 timer(s) running at 12.50MHz (phys). Switching to timer-based delay loop sched_clock: ARM arch timer >56 bits at 12500kHz, resolution 80ns sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms Console: colour dummy device 80x30 Calibrating delay loop (skipped), value calculated using timer frequency.. 25.00 BogoMIPS (lpj=125000) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok CPU0: update cpu_power 1024 CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00 Setting up static identity map for 0x804619a8 - 0x804619dc CPU1: Booted secondary processor CPU1: update cpu_power 1024 CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01 Brought up 2 CPUs SMP: Total of 2 processors activated. CPU: All CPU(s) started in HYP mode. CPU: Virtualization extensions available. devtmpfs: initialized VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5 NET: Registered protocol family 16 DMA: preallocated 256 KiB pool for atomic coherent allocations cpuidle: using governor ladder cpuidle: using governor menu irq: no irq domain found for /soc/uqe@...0000/qeic@80 ! irq: no irq domain found for /soc/uqe@...0000/qeic@80 ! bio: create slab <bio-0> at 0 layerscape-pcie 3400000.pcie: PCI host bridge to bus 0000:00 pci_bus 0000:00: root bus resource [bus 00-ff] pci_bus 0000:00: root bus resource [io 0x4010000000-0x401000ffff] pci_bus 0000:00: root bus resource [mem 0x4100000000-0x41ffffffff] (bus address [0x00000000-0xffffffff]) PCI: bus0: Fast back to back transfers disabled PCI: bus1: Fast back to back transfers enabled pci 0000:00:00.0: BAR 0: assigned [mem 0x4100000000-0x4100ffffff 64bit] pci 0000:00:00.0: BAR 6: assigned [mem 0x4101000000-0x4101ffffff pref] pci 0000:00:00.0: PCI bridge to [bus 01] pci 0000:00:00.0: PCI bridge to [bus 01] layerscape-pcie 3500000.pcie: PCI host bridge to bus 0001:00 pci_bus 0001:00: root bus resource [bus 00-ff] pci_bus 0001:00: root bus resource [io 0x4810000000-0x481000ffff] (bus address [0x480fff0000-0x480fffffff]) pci_bus 0001:00: root bus resource [mem 0x4900000000-0x49ffffffff] (bus address [0x00000000-0xffffffff]) PCI: bus0: Fast back to back transfers disabled PCI: bus1: Fast back to back transfers enabled pci 0001:00:00.0: BAR 0: assigned [mem 0x4900000000-0x4900ffffff 64bit] pci 0001:00:00.0: BAR 6: assigned [mem 0x4901000000-0x4901ffffff pref] pci 0001:00:00.0: PCI bridge to [bus 01] pci 0000:00:00.0: PCI bridge to [bus 01] pci 0001:00:00.0: PCI bridge to [bus 01] vgaarb: loaded SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb i2c i2c-0: IMX I2C adapter registered i2c i2c-0: using dma0chan16 (tx) and dma0chan17 (rx) for DMA transfers i2c i2c-1: IMX I2C adapter registered i2c i2c-1: using dma0chan18 (tx) and dma0chan19 (rx) for DMA transfers pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@...ux.it> PTP clock support registered fsl-ifc 1530000.ifc: Freescale Integrated Flash Controller Switched to clocksource arch_sys_counter NET: Registered protocol family 2 TCP established hash table entries: 8192 (order: 4, 65536 bytes) TCP bind hash table entries: 8192 (order: 5, 163840 bytes) TCP: Hash tables configured (established 8192 bind 8192) TCP: reno registered UDP hash table entries: 512 (order: 2, 24576 bytes) UDP-Lite hash table entries: 512 (order: 2, 24576 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. Trying to unpack rootfs image as initramfs... rootfs image is not initramfs (no cpio magic); looks like an initrd Freeing initrd memory: 18704K (bdcf9000 - bef3d000) NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc. msgmni has been set to 2017 io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 21c0500.serial: ttyS0 at MMIO 0x21c0500 (irq = 118, base_baud = 9375000) is a 16550A console [ttyS0] enabled 21c0600.serial: ttyS1 at MMIO 0x21c0600 (irq = 118, base_baud = 9375000) is a 16550A of_serial 2402000.ucc: clk or clock-frequency not defined of_serial: probe of 2402000.ucc failed with error -2 of_serial 2402200.ucc: clk or clock-frequency not defined of_serial: probe of 2402200.ucc failed with error -2 serial: Freescale lpuart driver 2950000.serial: ttyLP0 at MMIO 0x2950000 (irq = 112, base_baud = 6250000) is a FSL_LPUART brd: module loaded loop: module loaded 60000000.nor: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID 0x000089 Chip ID 0x00227e Amd/Fujitsu Extended Query Table at 0x0040 Amd/Fujitsu Extended Query version 1.3. number of CFI chips: 1 4 ofpart partitions found on MTD device 60000000.nor Creating 4 MTD partitions on "60000000.nor": 0x000000000000-0x000000020000 : "NOR RCW Image" 0x000000020000-0x000000120000 : "NOR DTB Image" 0x000000120000-0x000000920000 : "NOR Linux Kernel Image" 0x000000920000-0x000003b20000 : "NOR Ramdisk Root File System" 6Freescale DSPI master initialized CAN device driver interface flexcan 2a70000.can: device registered (reg_base=c0816000, irq=158) flexcan 2a80000.can: device registered (reg_base=c0818000, irq=159) libphy: Freescale PowerQUICC MII Bus: probed fsl-gianfar ethernet.4: enabled errata workarounds, flags: 0x4 fsl-gianfar ethernet.4 eth0: mac: 00:e0:0c:bc:e5:60 fsl-gianfar ethernet.4 eth0: Running with NAPI enabled fsl-gianfar ethernet.4 eth0: RX BD ring size for Q[0]: 256 fsl-gianfar ethernet.4 eth0: TX BD ring size for Q[0]: 256 fsl-gianfar ethernet.5: enabled errata workarounds, flags: 0x4 fsl-gianfar ethernet.5 eth1: mac: 00:e0:0c:bc:e5:61 fsl-gianfar ethernet.5 eth1: Running with NAPI enabled fsl-gianfar ethernet.5 eth1: RX BD ring size for Q[0]: 256 fsl-gianfar ethernet.5 eth1: TX BD ring size for Q[0]: 256 fsl-gianfar ethernet.6: enabled errata workarounds, flags: 0x4 fsl-gianfar ethernet.6 eth2: mac: 00:e0:0c:bc:e5:62 fsl-gianfar ethernet.6 eth2: Running with NAPI enabled fsl-gianfar ethernet.6 eth2: RX BD ring size for Q[0]: 256 fsl-gianfar ethernet.6 eth2: TX BD ring size for Q[0]: 256 pps pps0: new PPS source ptp0 e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI e1000: Copyright (c) 1999-2006 Intel Corporation. e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k e1000e: Copyright(c) 1999 - 2013 Intel Corporation. xhci-hcd xhci-hcd.0.auto: xHCI Host Controller xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1 xhci-hcd xhci-hcd.0.auto: irq 125, io mem 0x03100000 hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected xhci-hcd xhci-hcd.0.auto: xHCI Host Controller xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected usbcore: registered new interface driver usb-storage mousedev: PS/2 mouse device common for all mice i2c /dev entries driver sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pltfm: SDHCI platform and OF driver helper mmc0: SDHCI controller on 1560000.esdhc [1560000.esdhc] using ADMA Value in jrstart addr c0e0005c, value prev 0 new f caam 1700000.crypto: Instantiated RNG4 SH0 caam 1700000.crypto: Instantiated RNG4 SH1 caam 1700000.crypto: device ID = 0x0a140300 (Era 67108864) caam 1700000.crypto: job rings = 4, qi = 0 caam algorithms registered in /proc/crypto caam_jr 1710000.jr: registering rng-caam usbcore: registered new interface driver usbhid usbhid: USB HID core driver TCP: cubic registered Initializing XFRM netlink socket NET: Registered protocol family 10 sit: IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 NET: Registered protocol family 15 can: controller area network core (rev 20120528 abi 9) NET: Registered protocol family 29 can: raw protocol (rev 20120528) Key type dns_resolver registered drivers/rtc/hctosys.c: unable to open rtc device (rtc0) RAMDISK: gzip image found at block 0 usb 1-1: new high-speed USB device number 2 using xhci-hcd hub 1-1:1.0: USB hub found hub 1-1:1.0: 4 ports detected usb 2-1: new SuperSpeed USB device number 2 using xhci-hcd usb 2-1: Parent hub missing LPM exit latency info. Power management will be impacted. hub 2-1:1.0: USB hub found hub 2-1:1.0: 4 ports detected VFS: Mounted root (ext2 filesystem) on device 1:0. devtmpfs: mounted Freeing unused kernel memory: 204K (805ad000 - 805e0000) INIT: version 2.88 booting Starting udev udevd[108]: starting version 182 Starting Bootlog daemon: bootlogd. Populating dev cache Configuring network interfaces... IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready udhcpc (v1.21.1) started Sending discover... libphy: mdio@...4000:02 - Link is Down Sending discover... libphy: mdio@...4000:02 - Link is Up - 1000/Full IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Sending discover... Sending select for 10.193.20.100... Lease of 10.193.20.100 obtained, lease time 14400 /etc/udhcpc.d/50default: Adding DNS 10.192.130.201 /etc/udhcpc.d/50default: Adding DNS 10.211.0.3 /etc/udhcpc.d/50default: Adding DNS 10.196.51.200 done. net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.all.rp_filter = 1 hwclock: can't open '/dev/misc/rtc': No such file or directory Wed Jun 25 11:59:00 UTC 2014 hwclock: can't open '/dev/misc/rtc': No such file or directory Running postinst /etc/rpm-postinsts/100-sysvinit-inittab... Running postinst /etc/rpm-postinsts/101-debianutils... update-rc.d: /etc/init.d/run-postinsts exists during rc.d purge (continuing) Removing any system startup links for run-postinsts ... /etc/rcS.d/S99run-postinsts INIT: Entering runlevel: 5 Starting OpenBSD Secure Shell server: sshd generating ssh RSA key... generating ssh ECDSA key... generating ssh DSA key... done. hwclock: can't open '/dev/misc/rtc': No such file or directory Starting network benchmark server: netserver. Starting system log daemon...0 Starting kernel log daemon...0 Starting internet superserver: xinetd. Stopping Bootlog daemon: bootlogd. Poky (Yocto Project Reference Distro) 1.5 ls1021atwr /dev/ttyS0 ls1021atwr login: root root@...021atwr:~# i2cdump -y 1 0x52 i 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ root@...021atwr:~# i2cdump -y 1 0x52 No size specified (using byte-data access) 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ root@...021atwr:~# i2cset -f -y 1 0x52 0x00 0xa0 0xa1 0xa2 0xa3 0xa4 0xa5 0xa6 0xa7 0xa8 0xa9 0xaa 0xab 0xac 0xad 0xae 0xaf i root@...021atwr:~# i2cset -f -y 1 0x52 0x10 0xb0 0xb1 0xb2 0xb3 0xb4 0xb5 0xb6 0xb7 0xb8 0xb9 0xba 0xbb 0xbc 0xbd 0xbe 0xbf i root@...021atwr:~# i2cset -f -y 1 0x52 0x20 0xc0 0xc1 0xc2 0xc3 0xc4 0xc5 0xc6 0xc7 0xc8 0xc9 0xca 0xcb 0xcc 0xcd 0xce 0xcf i root@...021atwr:~# i2cset -f -y 1 0x52 0x30 0xd0 0xd1 0xd2 0xd3 0xd4 0xd5 0xd6 0xd7 0xd8 0xd9 0xda 0xdb 0xdc 0xdd 0xde 0xdf i root@...021atwr:~# i2cset -f -y 1 0x52 0x40 0xe0 0xe1 0xe2 0xe3 0xe4 0xe5 0xe6 0xe7 0xe8 0xe9 0xea 0xeb 0xec 0xed 0xee 0xef i root@...021atwr:~# i2cdump -y 1 0x52 i 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af ???????????????? 10: b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf ???????????????? 20: c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf ???????????????? 30: d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df ???????????????? 40: e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef ???????????????? 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ root@...021atwr:~# i2cdump -y 1 0x52 No size specified (using byte-data access) 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af ???????????????? 10: b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf ???????????????? 20: c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf ???????????????? 30: d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df ???????????????? 40: e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef ???????????????? 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ root@...021atwr:~# -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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