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

[#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

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

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

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.

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