[#5302] ad7877 touchscreen fails to be probed on bf527 ezkit

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[#5302] ad7877 touchscreen fails to be probed on bf527 ezkit

Submitted By: Mingquan Pan

Open Date

2009-07-01 02:22:14     Close Date

2009-07-03 06:13:30

Priority:

Medium High     Assignee:

Graf Yang

Michael Hennerich

Status:

Closed     Fixed In Release:

N/A

Found In Release:

N/A     Release:

Category:

N/A     Board:

N/A

Processor:

BF527     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Rejected

Uboot version or rev.:

    Toolchain version or rev.:

09r1-rc7

App binary format:

N/A     

Summary: ad7877 touchscreen fails to be probed on bf527 ezkit

Details:

 

ad7877 touchscreen fails to be probed on bf527 ezkit.

 

bfin> bootm

## Booting kernel from Legacy Image at 02000000 ...

   Image Name:   Linux-2.6.28.10-ADI-2009R1-svn68

   Created:      2009-07-01   4:14:48 UTC

   Image Type:   Blackfin Linux Kernel Image (gzip compressed)

   Data Size:    4581568 Bytes =  4.4 MB

   Load Address: 00001000

   Entry Point:  001e16cc

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

Starting Kernel at = 001e16cc

Linux version 2.6.28.10-ADI-2009R1-svn6870 (test@linux) (gcc version 4.1.2 (ADI svn)) #8 Wed Jul 1 12:14:35 GMT-8 2009

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x00141830

  rodata    = 0x00141830-0x001a7988

  bss       = 0x001a8000-0x001bca10

  data      = 0x001bca10-0x001d4000

    stack   = 0x001d2000-0x001d4000

  init      = 0x001d4000-0x008b4000

  available = 0x008b4000-0x03eff000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 3

Blackfin support (C) 2004-2009 Analog Devices, Inc.

Compiled for ADSP-BF527 Rev 0.0

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 16001

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

Console: colour dummy device 80x25

console [tty0] enabled

Linux version 2.6.28.10-ADI-2009R1-svn6870 (test@linux) (gcc version 4.1.2 (ADI svn)) #8 Wed Jul 1 12:14:35 GMT-8 2009

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x00141830

  rodata    = 0x00141830-0x001a7988

  bss       = 0x001a8000-0x001bca10

  data      = 0x001bca10-0x001d4000

    stack   = 0x001d2000-0x001d4000

  init      = 0x001d4000-0x008b4000

  available = 0x008b4000-0x03eff000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 3

Blackfin support (C) 2004-2009 Analog Devices, Inc.

Compiled for ADSP-BF527 Rev 0.0

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 16001

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

Console: colour dummy device 80x25

console [tty0] enabled

console handover: boot [early_BFuart0] -> real [ttyBF0]

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 55024k/65536k RAM, (7040k init code, 1282k kernel code, 586k data, 1024k dma, 576k reserved)

Calibrating delay loop... 1046.52 BogoMIPS (lpj=2093056)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (15 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (42 KB free)

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin DMA Controller

ezkit_init(): registering device resources

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

musb_hdrc: version 6.0, musb-dma, host, debug=0

musb_hdrc: USB Host mode controller at ffc03800 using DMA, IRQ 59

musb_hdrc musb_hdrc.0: MUSB HDRC host driver

musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1

usb usb1: configuration #1 chosen from 1 choice

hub 1-0:1.0: USB hub found

dma_alloc_init: dma_page @ 0x03e86000 - 256 pages at 0x03f00000

hub 1-0:1.0: 1 port detected

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

NET: Registered protocol family 1

msgmni has been set to 107

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

bfin-t350mcqb: 320x240 24-bit RGB FrameBuffer initializing...

Console: switching to colour frame buffer device 40x30

bfin-otp: initialized

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=25)@sclk=131MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

Driver 'sd' needs updating - please use bus_type methods

m25p80 spi0.1: m25p16 (2048 Kbytes)

Creating 2 MTD partitions on "m25p80":

0x00000000-0x00040000 : "bootloader(spi)"

0x00040000-0x00200000 : "linux kernel(spi)"

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

ad7877 spi0.2: spi0.2: Failed to probe AD7877 Touchscreen

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

usbcore: registered new interface driver usbhid

usbhid: v2.6:USB HID core driver

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1970-01-13 07:02:39 UTC (1062159)

Freeing unused kernel memory: 7040k freed

                           _____________________________________

        a8888b.           / Welcome to the uClinux distribution \

       d888888b.         /       _     _                         \

       8P"YP"Y88        /       | |   |_|            __  __ (TM)  |

       8|o||o|88  _____/        | |    _ ____  _   _ \ \/ /       |

       8'    .88       \        | |   | |  _ \| | | | \  /        |

       8`._.' Y8.       \       | |__ | | | | | |_| | /  \        |

      d/      `8b.       \      \____||_|_| |_|\____|/_/\_\       |

     dP   .    Y8b.       \   For embedded processors including   |

    d8:'  "  `::88b        \    the Analog Devices Blackfin      /

   d8"         'Y88b        \___________________________________/

  :8P    '      :888

   8a.   :     _a88P         For further information, check out:

._/"Yaa_:   .| 88P|            - http://blackfin.uclinux.org/

\    YP"    `| 8P  `.          - http://docs.blackfin.uclinux.org/

/     \.___.d|    .'           - http://www.uclinux.org/

`--..__)8888P`._.'  jgs/a:f    - http://www.analog.com/blackfin

 

Have a lot of fun...

 

 

BusyBox v1.13.4 (2009-06-30 18:33:50 GMT-8) built-in shell (msh)

Enter 'help' for a list of built-in commands.

 

 

I have moved the chip select to 2 when connected to bf527-ezkit. The remain selection is the same as it is connected to bf537-stamp, in which case it can works ok.

 

It could be some jumpers on bf527 ezkit are not ready for touchscreen, but don't know which.

 

I have enabled JP3(STAMP enable),SW8 X.X.on.off,sw19 on.off.on.off.

 

Follow-ups

 

--- Michael Hennerich                                        2009-07-01 03:45:48

The BF527-EZKIT doesn't feature an onboard AD7877 touch screen digitizer.

We already test the AD7877 driver on the BF537-STAMP and BF548-EZKIT.

 

Do we really need to test it on the BF537-EZKIT as well?

 

If yes - try to also set:

 

SW11-2 OFF

SW18-1 OFF

 

And try again.

 

-Michael

 

--- Mingquan Pan                                             2009-07-01 06:51:37

I try with sw11.2 off and sw18.1 off on bf527 ezkit, still fails to probe the

ad7877.

?

 

--- Sonic Zhang                                              2009-07-02 04:45:21

This test case was passed in 2008R1.5 on bf527-ezkit.

 

--- Michael Hennerich                                        2009-07-02 06:32:23

If you can tell me that the same board with the 2008R1.5 works - I will take a

closer look.

I don't have an external AD7877 board I could test with.

 

And I know we had similar problems with the SPI MMC card on the BF527-EZKIT,

due to some pull down/up resistors attached to the SPI strobes connected to the

SPI-Flash on the BF527-EZKIT.

 

-Michael

 

--- Sonic Zhang                                              2009-07-02 22:03:54

OK. I will ask Graf to take a look in Shanghai as well.

 

--- Graf Yang                                                2009-07-03 05:08:25

The chip selector jumper on AD7877 board need not change on BF527-ezkit, it is

same as settings on BF537-stamp.

 

Updated ad7877 wiki,

https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:ad7877

 

--- Mingquan Pan                                             2009-07-03 06:13:30

Yeah, it can detect the ad7877 on bf527 ezkit board now after setting all these

jumpers. Close.

 

 

 

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File Name     File Type     File Size     Posted By

config.touchscreen    application/octet-stream    37859    Mingquan Pan

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