Hi Rudolf
There are always some "Device error!" messages(7 times) printed on the screen
when I load eeprom module after the i2c-ali1563 has been loaded.
These codes in i2c-ali1563 are the reason:
/* device error - probably missing ACK */
if (data & HST_STS_DEVERR) {
dev_warn(&a->dev, "Device error!\n");
}
You may check the log message in previous mails, maybe it is normal. But
don't you think these "Device error!" messages should NOT be printed?
Because eeprom module works well, so do w83792d modules(there are also such
messages, maybe 3 times or once)
Best Regards
Chunhao
> -----Original Message-----
> From: PI14 HUANG0
> Sent: 2005???4???8??? 09:38
> To: 'Rudolf Marek'
> Cc: sensors at Stimpy.netroedge.com; PI10 LHHsu; PI14 DZSHEN
> Subject: RE: We will port w83792d.c to linux-2.6
>
> Hi Rudolf
>
> Great! It seems that you find out the reason, the eeprom module works well.
> The attachment is the debug message. Please check it.
>
> i2cdump 0 0x50 --> message1
> i2cdump 0 0x50 c --> message2
> modprobe eeprom --> message3
> sensors
> modprobe w83792d --> message4
> sensors --> message5
>
> i2cdump 0 0x50 w --> message6
> i2cdump 0 0x50 c --> message7
>
>
> The following is the dump output:
> [root@ ~]# i2cdump 0 0x50
> No size specified (using byte-data access)
> WARNING! This program can confuse your I2C bus, cause data loss and worse!
> I will probe file /dev/i2c-0, address 0x50, mode byte
> Continue? [Y/n]
> 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
> 00: ac ff 07 0c 0a 01 48 00 04 75 75 02 80 08 08 01 ?.????H.?uu?????
> 10: 0e 04 0c 01 02 26 00 a0 75 00 00 50 3c 50 30 20 ?????&.?u..P<P0
> 20: 00 00 50 50 00 00 00 00 00 41 4b 30 32 75 00 00 ..PP.....AK02u..
> 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a ...............?
> 40: 80 00 00 00 00 00 00 bb ff 00 00 00 00 00 00 00 ?......?........
> 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 80: 80 00 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: 00 00 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: 80 00 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: 00 00 ac 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@ ~]# i2cdump 0 0x50 c
> WARNING! This program can confuse your I2C bus, cause data loss and worse!
> I will probe file /dev/i2c-0, address 0x50, mode byte consecutive read
> Continue? [Y/n]
> 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
> 00: ac ff 07 0c 0a 01 48 00 04 75 75 02 80 08 08 01 ?.????H.?uu?????
> 10: 0e 04 0c 01 02 26 00 a0 75 00 00 50 3c 50 30 20 ?????&.?u..P<P0
> 20: 00 00 50 50 00 00 00 00 00 41 4b 30 32 75 00 00 ..PP.....AK02u..
> 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a ...............?
> 40: 80 00 00 00 00 00 00 bb ff 00 00 00 00 00 00 00 ?......?........
> 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 80: 80 00 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: 00 00 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: 80 00 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: 00 00 ac 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@ ~]# modprobe eeprom
> [root@ ~]# sensors
> eeprom-i2c-0-51
> Adapter: SMBus ALi 1563 Adapter @ 5000
> Memory type: DDR SDRAM DIMM
> Memory size (MB): 128
>
> eeprom-i2c-0-50
> Adapter: SMBus ALi 1563 Adapter @ 5000
> Memory type: DDR SDRAM DIMM
> Memory size (MB): 128
>
> [root@ ~]# modprobe w83792d
> [root@ ~]# sensors
> w83792d-i2c-0-2f
> Adapter: SMBus ALi 1563 Adapter @ 5000
> VCoreA: +1.52 V (min = +0.00 V, max = +1.78 V)
> VCoreB: +0.54 V (min = +0.00 V, max = +1.78 V)
> VIN0: +3.30 V (min = +0.00 V, max = +4.08 V)
> VIN1: +3.15 V (min = +0.00 V, max = +4.08 V)
> VIN2: +2.52 V (min = +0.00 V, max = +4.08 V)
> VIN3: +1.26 V (min = +0.00 V, max = +4.08 V)
> 5VCC: +5.03 V (min = +0.00 V, max = +6.12 V)
> 5VSB: +4.99 V (min = +0.00 V, max = +6.12 V)
> VBAT: +3.18 V (min = +0.00 V, max = +4.08 V)
> Fan1: 1638 RPM (min = 703 RPM, div = 8)
> Fan2: 0 RPM (min = 703 RPM, div = 8)
> Fan3: 0 RPM (min = 703 RPM, div = 8)
> Fan4: 0 RPM (min = 703 RPM, div = 8)
> Fan5: 0 RPM (min = 703 RPM, div = 8)
> Fan6: 0 RPM (min = 703 RPM, div = 8)
> Fan7: 37500 RPM (min = 0 RPM, div = 2)
> Temp1: +38.0????C (high = +80.0????C, hyst = +75.0????C) ALARM
> Temp2: -8.0????C (high = +80.0????C, hyst = +75.0????C) ALARM
> Temp3: +42.0????C (high = +80.0????C, hyst = +75.0????C) ALARM
> chassis: Chassis is normal.
>
> eeprom-i2c-0-51
> Adapter: SMBus ALi 1563 Adapter @ 5000
> Memory type: DDR SDRAM DIMM
> Memory size (MB): 128
>
> eeprom-i2c-0-50
> Adapter: SMBus ALi 1563 Adapter @ 5000
> Memory type: DDR SDRAM DIMM
> Memory size (MB): 128
>
>
> [root@ ~]# i2cdump 0 0x50 w
> WARNING! This program can confuse your I2C bus, cause data loss and worse!
> I will probe file /dev/i2c-0, address 0x50, mode word
> Continue? [Y/n]
> 0,8 1,9 2,a 3,b 4,c 5,d 6,e 7,f
> 00: ffac 07ff 0c07 0a0c 010a 4801 0048 0400
> 08: 7504 7575 0275 8002 0880 0808 0108 0e01
> 10: 040e 0c04 010c 0201 2602 0026 a000 75a0
> 18: 0075 0000 5000 3c50 503c 3050 2030 0020
> 20: 0000 5000 5050 0050 0000 0000 0000 0000
> 28: 4100 4b41 304b 3230 7532 0075 0000 0000
> 30: 0000 0000 0000 0000 0000 0000 0000 0000
> 38: 0000 0000 0000 0000 0000 0000 1a00 801a
> 40: 0080 0000 0000 0000 0000 0000 bb00 ffbb
> 48: 00ff 0000 0000 0000 0000 0000 0000 0000
> 50: 0000 0000 0000 0000 0000 0000 0000 0000
> 58: 0000 0000 0000 0000 0000 0000 0000 0000
> 60: 0000 0000 0000 0000 0000 0000 0000 0000
> 68: 0000 0000 0000 0000 0000 0000 0000 0000
> 70: 0000 0000 0000 0000 0000 0000 0000 0000
> 78: 0000 0000 0000 0000 0000 0000 0000 8000
> 80: 0080 ff00 ffff ffff ffff ffff ffff ffff
> 88: ffff ffff ffff ffff ffff ffff ffff ffff
> 90: ffff ffff ffff ffff ffff ffff ffff ffff
> 98: ffff ffff ffff ffff ffff ffff ffff 00ff
> a0: 0000 ff00 ffff ffff ffff ffff ffff ffff
> a8: ffff ffff ffff ffff ffff ffff ffff ffff
> b0: ffff ffff ffff ffff ffff ffff ffff ffff
> b8: ffff ffff ffff ffff ffff ffff ffff 80ff
> c0: 0080 ff00 ffff ffff ffff ffff ffff ffff
> c8: ffff ffff ffff ffff ffff ffff ffff ffff
> d0: ffff ffff ffff ffff ffff ffff ffff ffff
> d8: ffff ffff ffff ffff ffff ffff ffff 00ff
> e0: 0000 ac00 ffac ffff ffff ffff ffff ffff
> e8: ffff ffff ffff ffff ffff ffff ffff ffff
> f0: ffff ffff ffff ffff ffff ffff ffff ffff
> f8: ffff ffff ffff ffff ffff ffff ffff acff
> [root@ ~]# i2cdump 0 0x50 c
> WARNING! This program can confuse your I2C bus, cause data loss and worse!
> I will probe file /dev/i2c-0, address 0x50, mode byte consecutive read
> Continue? [Y/n]
> 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
> 00: ac ff 07 0c 0a 01 48 00 04 75 75 02 80 08 08 01 ?.????H.?uu?????
> 10: 0e 04 0c 01 02 26 00 a0 75 00 00 50 3c 50 30 20 ?????&.?u..P<P0
> 20: 00 00 50 50 00 00 00 00 00 41 4b 30 32 75 00 00 ..PP.....AK02u..
> 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a ...............?
> 40: 80 00 00 00 00 00 00 bb ff 00 00 00 00 00 00 00 ?......?........
> 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 80: 80 00 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: 00 00 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: 80 00 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: 00 00 ac 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@ ~]# rmmod w83792d
> [root@ ~]# rmmod eeprom
> [root@ ~]# modprobe w83792d
> [root@ ~]# modprobe eeprom
> [root@ ~]# sensors
> eeprom-i2c-0-51
> Adapter: SMBus ALi 1563 Adapter @ 5000
> Memory type: DDR SDRAM DIMM
> Memory size (MB): 128
>
> eeprom-i2c-0-50
> Adapter: SMBus ALi 1563 Adapter @ 5000
> Memory type: DDR SDRAM DIMM
> Memory size (MB): 128
>
> w83792d-i2c-0-2f
> Adapter: SMBus ALi 1563 Adapter @ 5000
> VCoreA: +1.52 V (min = +0.00 V, max = +1.78 V)
> VCoreB: +0.54 V (min = +0.00 V, max = +1.78 V)
> VIN0: +3.30 V (min = +0.00 V, max = +4.08 V)
> VIN1: +3.16 V (min = +0.00 V, max = +4.08 V)
> VIN2: +2.52 V (min = +0.00 V, max = +4.08 V)
> VIN3: +1.26 V (min = +0.00 V, max = +4.08 V)
> 5VCC: +5.03 V (min = +0.00 V, max = +6.12 V)
> 5VSB: +4.99 V (min = +0.00 V, max = +6.12 V)
> VBAT: +3.15 V (min = +0.00 V, max = +4.08 V)
> Fan1: 1638 RPM (min = 703 RPM, div = 8)
> Fan2: 0 RPM (min = 703 RPM, div = 8)
> Fan3: 0 RPM (min = 703 RPM, div = 8)
> Fan4: 0 RPM (min = 703 RPM, div = 8)
> Fan5: 0 RPM (min = 703 RPM, div = 8)
> Fan6: 0 RPM (min = 703 RPM, div = 8)
> Fan7: 37500 RPM (min = 0 RPM, div = 2)
> Temp1: +38.0????C (high = +80.0????C, hyst = +75.0????C) ALARM
> Temp2: -8.0????C (high = +80.0????C, hyst = +75.0????C) ALARM
> Temp3: +42.0????C (high = +80.0????C, hyst = +75.0????C) ALARM
> chassis: Chassis is normal.
>
> Thanks
> Best Regards
> Chunhao
>
>
>
> > -----Original Message-----
> > From: Rudolf Marek [mailto:R.Marek at sh.cvut.cz]
> > Sent: 2005???4???8??? 02:02
> > To: PI14 HUANG0
> > Cc: R.Marek at sh.cvut.cz; sensors at Stimpy.netroedge.com; PI10 LHHsu; PI14
> DZSHEN
> > Subject: RE: We will port w83792d.c to linux-2.6
> >
> > hello,
> >
> > I think I have a solution (after some hours of work).
> >
> > First how "continous reads works"- READ_BYTE. It is good for eeprom
> > reading, first you write to command register offset from which you want to
> > start reading and next you read and read and read data. (in READ_BYTE_DATA
> > mode you must write offset, get data, write offset+1, get data etc)
> >
> > problem: it seems that for BYTE mode readings do not start at correct
> > location
> >
> > The shift by one byte we observed can be explained that we start reading
> > at offset FF instead of from 00 as requested.
> >
> > Why after modprobe decoding of memory type works?
> >
> > I concluded from docs I was wrong, the problem does not depend on "older
> > value of CMD".
> >
> > It seems it depends on value of some other register.
> >
> > it can be spotted right here:
> >
> > size is I2C_SMBUS_BYTE!
> > size is HST_CNTL2_BYTE!
> > rw == I2C_SMBUS_WRITE!
> > Transaction (pre): STS=00, CNTL1=00, CNTL2=08, CMD=40, ADD=a2, DAT0=1a,
> > DAT1=00
> > Transaction (post): STS=42, CNTL1=00, CNTL2=08, CMD=40, ADD=a2, DAT0=1a,
> > DAT1=00
> >
> > This requests to read in I2C_SMBUS_BYTE from offset 0x40, offset 0x40 is
> > filled to CMD REG (even before transaction because it is done in access
> > routine)
> >
> > Now what we got when reading first byte:
> >
> > Transaction (pre): STS=00, CNTL1=00, CNTL2=08, CMD=40, ADD=a3, DAT0=1a,
> > DAT1=00
> > Transaction (post): STS=42, CNTL1=00, CNTL2=08, CMD=40, ADD=a3, DAT0=00,
> > DAT1=00
> >
> > Transaction (pre): STS=00, CNTL1=00, CNTL2=08, CMD=40, ADD=a3, DAT0=00,
> > DAT1=00
> > Transaction (post): STS=42, CNTL1=00, CNTL2=08, CMD=40, ADD=a3, DAT0=50,
> > DAT1=00
> >
> > Transaction (pre): STS=00, CNTL1=00, CNTL2=08, CMD=40, ADD=a3, DAT0=50,
> > DAT1=00
> > Transaction (post): STS=42, CNTL1=00, CNTL2=08, CMD=40, ADD=a3, DAT0=3c,
> > DAT1=00
> >
> > In DAT0 are results so we get 00 50 3C...
> > But expected content is 80 00 00 00 ...
> >
> > BUT if you take a look to the dump you can find this sequence at address
> > 0x1A. 00 50 3c 50 30 20
> >
> > And guess what were was the value 0x1A present?
> >
> > Transaction (pre): STS=00, CNTL1=00, CNTL2=08, CMD=40, ADD=a2, DAT0=1a,
> > DAT1=00
> >
> > Yes it was in DAT0 register. So this ALI thing is putting the command not
> > to the CMD reg but it takes it from DAT0 register!!!!!!!!
> > (intel and others are putting command to cmd register)
> >
> > So what we need now:
> >
> > 1) test the driver with following change:
> > case HST_CNTL2_BYTE:
> > dev_err(&a->dev, "size is HST_CNTL2_BYTE!\n");
> > if (rw== I2C_SMBUS_WRITE)
> > outb_p(cmd, SMB_HST_CMD);
> >
> > and replace please last line with outb_p(cmd, SMB_HST_DAT0);
> >
> >
> > now you can run
> > i2cdump 0 0x50
> > i2cdump 0 0x50 c
> > modprobe eeprom
> > sensors
> > modprobe w...
> > sensors
> >
> > all should work now (please test also with your chip driver loaded as
> > you reported in your previous email)
> >
> > 2) ask ALI if this is a bug or feature.
> > 3) test the rest modes, WORD mode, please
> > can you test (I dont know how the result should look like)
> >
> > i2cdump 0 0x50 w
> > i2cdump 0 0x50 c
> >
> > Regards
> >
> > Rudolf
> >
> > > [root@ ~]# i2cdump 0 0x51
> > > No size specified (using byte-data access)
> > > WARNING! This program can confuse your I2C bus, cause data loss and worse!
> > > I will probe file /dev/i2c-0, address 0x51, mode byte
> > > Continue? [Y/n]
> > > 0 1 2 3 4 5 6 7 8 9 a b c d e f
> 0123456789abcdef
> > > 00: ac ff 07 0c 0a 01 48 00 04 75 75 02 80 08 08 01 ?.????H.?uu?????
> > > 10: 0e 04 0c 01 02 26 00 a0 75 00 00 50 3c 50 30 20 ?????&.?u..P<P0
> > > 20: 00 00 50 50 00 00 00 00 00 41 4b 30 32 75 00 00 ..PP.....AK02u..
> > > 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a ...............?
> > > 40: 80 00 00 00 00 00 00 bb ff 00 00 00 00 00 00 00 ?......?........
> > > 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > > 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > > 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > > 80: 80 00 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: 00 00 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: 80 00 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: 00 00 ac 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 ................
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