FAQ: [#6218] In sport emulate spi testing, can't see square wave through network oscilloscope(ndso) on target board BF537_STAMP(2010)

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[#6218] In sport emulate spi testing, can't see square wave through network oscilloscope(ndso) on target board BF537_STAMP

Submitted By: angelia wu

Open Date

2010-09-01 23:19:05     Close Date

2010-10-31 23:01:29

Priority:

Medium     Assignee:

Bob Liu

Status:

Closed     Fixed In Release:

N/A

Found In Release:

2010R1     Release:

Blackfin Linux:2010R1

Category:

N/A     Board:

STAMP

Processor:

BF537     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Assigned (Not Start)

Uboot version or rev.:

    Toolchain version or rev.:

svn-4681

App binary format:

N/A     

Summary: In sport emulate spi testing, can't see square wave through network oscilloscope(ndso) on target board BF537_STAMP

Details:

 

In sport emulate spi testing, can't see square wave through network oscilloscope(ndso) on target board BF537_STAMP.

 

the log as follow.

 

U-Boot 2010.06-svn2366 (ADI-2010R1-pre) (Jul 27 2010 - 21:47:44)

 

CPU:   ADSP bf537-0.2 (Detected Rev: 0.2) (bypass boot)

Board: ADI BF537 stamp board

       Support: http://blackfin.uclinux.org/

Clock: VCO: 500 MHz, Core: 500 MHz, System: 125 MHz

RAM:   64 MiB

Flash: 4 MiB

In:    serial

Out:   serial

Err:   serial

KGDB:  [on serial] ready

Net:   bfin_mac

Hit any key to stop autoboot:  0

Using bfin_mac device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'uImage'.

Load address: 0x1000000

Loading: #################################################################

         #################################################################

         #################################################################

         #################################################################

         #################################################################

         ###########################################

done

Bytes transferred = 5388936 (523a88 hex)

## Booting kernel from Legacy Image at 01000000 ...

   Image Name:   bf537-2.6.34.6-ADI-2010R1-pre-sv

   Created:      2010-09-02   2:57:31 UTC

   Image Type:   Blackfin Linux Kernel Image (gzip compressed)

   Data Size:    5388872 Bytes = 5.1 MiB

   Load Address: 00001000

   Entry Point:  001a3684

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

Starting Kernel at = 001a3684

Linux version 2.6.34.6-ADI-2010R1-pre-svn9118 (test@uclinux41) (gcc version 4.3.5 (ADI-trunk/svn-4681) ) #192 Thu Sep 2 10:57:26 CST 2010

register early platform devices

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart0] enabled

early printk enabled on early_BFuart0

Limiting kernel memory to 56MB due to anomaly 05000263

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x001175e0

  rodata    = 0x001175e0-0x00174efc

  bss       = 0x00175000-0x001854e8

  data      = 0x001854e8-0x00198000

    stack   = 0x00196000-0x00198000

  init      = 0x00198000-0x00995000

  available = 0x00995000-0x03800000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Blackfin support (C) 2004-2010 Analog Devices, Inc.

Compiled for ADSP-BF537 Rev 0.2

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

Processor Speed: 500 MHz core clock and 125 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

  External memory: cacheable in instruction cache

Data Cache Enabled for CPU0

  External memory: cacheable (write-back) in data cache

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 14224

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600 ip=10.100.4.50:10.100.4.174:10.99.29.1:25f

PID hash table entries: 256 (order: -2, 1024 bytes)

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

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

Memory available: 46964k/65536k RAM, (8180k init code, 1113k kernel code, 515k data, 1024k dma, 7740k reserved)

Hierarchical RCU implementation.

NR_IRQS:138

Configuring Blackfin Priority Driven Interrupts

console [ttyBF0] enabled, bootconsole disabled

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

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

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

Blackfin L1 Instruction SRAM: 48 KB (35 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_init(): registering device resources

bio: create slab <bio-0> at 0

spi spi0.1: Warning: SPI CPHA not set: Slave Select not under software control!

See Documentation/blackfin/bfin-spi-notes.txt

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

Switching to clocksource bfin_cs_cycles

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

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

msgmni has been set to 91

io scheduler noop registered

io scheduler cfq registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

brd: module loaded

bfin-sport-spi bfin-sport-spi.1: Emulate a SPI bus with via Blackfin SPORT, regs_base@ffc00800

bfin-sport-spi bfin-sport-spi.2: Emulate a SPI bus with via Blackfin SPORT, regs_base@ffc00900

bfin_mii_bus: probed

bfin_mii_bus: Can't get IRQ 65535 (PHY)

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=24)@sclk=125MHz)

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

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

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

TCP cubic registered

NET: Registered protocol family 17

&IP-Config: Gateway not on directly connected network.10:41:20 UTC (297680)

dma_alloc_init: dma_page @ 0x02a12000 - 256 pages at 0x03f00000

Freeing unused kernel memory: 8180k 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 v1.16.2 (2010-09-02 10:22:06 CST) hush - the humble shell

 

root:/> PHY: 0:01 - Link is Up - 100/Full

 

root:/> ifconfig

eth0      Link encap:Ethernet  HWaddr 00:E0:22:FE:47:9E 

          inet addr:10.100.4.50  Bcast:10.100.4.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:2 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:120 (120.0 B)  TX bytes:42 (42.0 B)

 

lo        Link encap:Local Loopback 

          inet addr:127.0.0.1  Mask:255.0.0.0

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

 

root:/> ndso &

[1] 170 ndso

root:/> ps -ax

  PID USER       VSZ STAT COMMAND

    1 root       104 S    /init

    2 root         0 SW   [kthreadd]

    3 root         0 SW   [ksoftirqd/0]

    4 root         0 SW   [watchdog/0]

    5 root         0 SW   [events/0]

    6 root         0 SW   [khelper]

    9 root         0 SW   [async/mgr]

   45 root         0 SW   [sync_supers]

   47 root         0 SW   [bdi-default]

   49 root         0 SW   [kblockd/0]

   51 root         0 SW   [bfin-spi.0]

   74 root         0 SW   [khungtaskd]

   75 root         0 SW   [kswapd0]

  119 root         0 SW   [mtdblockd]

  120 root         0 SW   [bfin-sport-spi.]

  122 root         0 SW   [bfin-sport-spi.]

  164 root       451 S    -/bin/sh

  165 root        44 S    /sbin/inetd

  166 root       432 S    /sbin/syslogd -n

  167 root       428 S    /sbin/klogd -n

  168 root        32 S    /bin/watchdogd -f -s

  170 root       368 S    ndso

  207 root         0 Z N  [ndso.cgi]

  211 root       432 R    ps -ax

root:/> kill 170

[1] Done                   ndso

root:/> ndso &

[1] 213 ndso

root:/>

 

Follow-ups

 

--- Bob Liu                                                  2010-09-09 22:47:24

In order to test sport emulate spi, must change file stamp.c

 

Index: linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c

===================================================================

--- linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c    (revision 9111)

+++ linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c    (working copy)

@@ -544,6 +544,7 @@

/* SPI ADC chip */

static struct bfin5xx_spi_chip spi_adc_chip_info = {

     .enable_dma = 1,         /* use dma transfer with this chip*/

+    //.enable_dma = 0,         /* use dma transfer with this chip*/

     .bits_per_word = 16,

};

#endif

@@ -1061,6 +1062,7 @@

         .modalias = "bfin_spi_adc", /* Name of spi_driver for this device

*/

         .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */

         .bus_num = 0, /* Framework bus number */

+//            .bus_num = 1, /* Framework bus number */

         .chip_select = 1, /* Framework chip select. */

         .platform_data = NULL, /* No spi_driver specific config */

         .controller_data = &spi_adc_chip_info,

@@ -1578,7 +1580,7 @@

 

/* SPORT SPI controller data */

static struct bfin5xx_spi_master bfin_sport_spi0_info = {

-    .num_chipselect = 1, /* master only supports one device */

+    .num_chipselect = 2, /* master only supports one device */

     .enable_dma = 0,  /* master don't support DMA */

     .pin_req = {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_DRPRI,

         P_SPORT0_RSCLK, P_SPORT0_TFS, P_SPORT0_RFS, 0},

@@ -1608,7 +1610,7 @@

};

 

static struct bfin5xx_spi_master bfin_sport_spi1_info = {

-    .num_chipselect = 1, /* master only supports one device */

+    .num_chipselect = 2, /* master only supports one device */

     .enable_dma = 0,  /* master don't support DMA */

     .pin_req = {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_DRPRI,

         P_SPORT1_RSCLK, P_SPORT1_TFS, P_SPORT1_RFS, 0},

root@adam-desktop:~/uclinux-dist2#

========

 

I can trigger the SPI_CLK and CS signal on the stamp spi socket correctly, but

there is still no data on SPI_MISO.

 

--- Mike Frysinger                                           2010-09-09 22:50:14

needing to change the CS depending on the config of the addon board makes sense,

but one of the fundamental reasons for having a SPORT/SPI driver in the first

place is for the full duplex dma.  so if that isnt working, it needs to be

fixed.

 

--- Bob Liu                                                  2010-09-09 22:51:39

Sorry, the correct change should be this:

 

Index: linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c

===================================================================

--- linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c (revision 9111)

+++ linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c (working copy)

@@ -544,6 +544,7 @@

/* SPI ADC chip */

static struct bfin5xx_spi_chip spi_adc_chip_info = {

+//       .enable_dma = 1,         /* use dma transfer with this chip*/

+       .enable_dma = 0,        

       .bits_per_word = 16,

};

#endif

@@ -1061,6 +1062,7 @@

               .modalias = "bfin_spi_adc", /* Name of spi_driver for

this device */

               .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ

*/

+//               .bus_num = 0, /* Framework bus number */

+             .bus_num = 1, /* Framework bus number */

               .chip_select = 1, /* Framework chip select. */

               .platform_data = NULL, /* No spi_driver specific config */

               .controller_data = &spi_adc_chip_info,

@@ -1578,7 +1580,7 @@

 

/* SPORT SPI controller data */

static struct bfin5xx_spi_master bfin_sport_spi0_info = {

-       .num_chipselect = 1, /* master only supports one device */

+       .num_chipselect = 2, /* master only supports one device */

       .enable_dma = 0,  /* master don't support DMA */

       .pin_req = {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_DRPRI,

               P_SPORT0_RSCLK, P_SPORT0_TFS, P_SPORT0_RFS, 0},

@@ -1608,7 +1610,7 @@

};

 

static struct bfin5xx_spi_master bfin_sport_spi1_info = {

-       .num_chipselect = 1, /* master only supports one device */

+       .num_chipselect = 2, /* master only supports one device */

       .enable_dma = 0,  /* master don't support DMA */

       .pin_req = {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_DRPRI,

               P_SPORT1_RSCLK, P_SPORT1_TFS, P_SPORT1_RFS, 0},

root@adam-desktop:~/uclinux-dist2#

========

 

--- angelia wu                                               2010-10-21 00:49:16

yes,now the case is ok.

so i closed the bug 6218.

 

--- angelia wu                                               2010-10-21 06:33:18

sorry , the above case is ndso testing not Sport emulate spi bus test.

And the Sport emulate spi test still have the problem.

 

--- angelia wu                                               2010-10-31 23:01:29

I test the case again and now it is ok.

I closed the bug.

 

--- Bob Liu                                                  2010-11-01 04:57:53

Addition comment:

Must follow wiki to change file

linux-2.6.x/arch/blackfin/mach-bf537/boards/stamp.c for testing.

 

 

 

    Files

    Changes

    Commits

    Dependencies

    Duplicates

    Associations

    Tags

 

File Name     File Type     File Size     Posted By

kernel.537sport_spi.config    application/x-config    35831    angelia wu

user.537sport_spi.config    application/x-config    49072    angelia wu

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