Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc(fwd)

[Rogério Brito]

Dear Ivo and John (among others),

Did you receive my earlier message (attached here for reference)? I'm
willing to experiment with the driver a little bit and I hope that the
information that I have provided so far is helpful to chase the reason
why the driver doesn't work on PowerPC.

BTW, the latest kernel that I tried on a x86-64 machine was a 2.6.26-rc6
and it showed the same results as with kernel 2.6.26-rc5: I couldn't
associate with the AP.

OTOH, reverting back to 2.6.25 on this (x86-64) machine, I can use the
D-Link USB stick without any problems.

If you need more information, I will be glad to assist you to have
everything fixed.

I am willing to use any git tree, if that helps.


Thanks in advance, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
> --- Begin Message ---
> Hi again, Ivo and John.
>
> I have finally made the rt2x00 work on the x86-64 with the kernel
> 2.6.25.
>
> Just as a reminder:
>
> * with kernel 2.6.26-rc4, I could associate with the AP, but could not
>   get a DHCP lease;
> * with kernel 2.6.26-rc5, I could not even associate with the AP.
>
> So, it seems that we have some regressions here. :-(
>
> > Well, I'm attaching the diff between the regdump from the earlier try
> > on the iBook and the regdump from this x86-64. I think that some
> > conclusions may be drawn from it, since it seems to be your domain of
> > expertise.
>
> I'm attaching here 3 files: the old output from regdump (taken from the
> ibook), the new, working (with kernel 2.6.25.4) regdump and their diff.
> Notice that there are some inverted values there, but they are shorts
> (i.e., 16-bit integers) that are inverted, instead of the inverted
> values being bytes.
>
> I think that this may mean that your work may be easier on debugging the
> driver (I hope so!).
>
>
> Thanks for any help, Rogério Brito.
>
> -- 
> Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
> http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
> Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
> 2.6.26-rc5-2
> driver: rt2500usb
> version: 2.1.4
> compiled: Jun  8 2008 17:08:54
> dev_flags: 0x00000e2f
> rt chip: 1201
> rf chip: 0005
> revision:00000005
>
> csr length: 128
> eeprom length: 53
> bbp length: 96
> rf length: 5
>
> csr
> 0 :0x00050000
> 1 :0x00040000
> 2 :0x13000000
> 3 :0xe9460000
> 4 :0x8a8d0000
> 5 :0x13000000
> 6 :0x51460000
> 7 :0x65100000
> 8 :0x09800000
> 9 :0xff1d0000
> 10 :0x00140000
> 11 :0x000a0000
> 12 :0x013a0000
> 13 :0x11110000
> 14 :0x1e110000
> 15 :0x01ee0000
> 16 :0x00000000
> 17 :0x01fe0000
> 18 :0x005a0000
> 19 :0xff000000
> 20 :0x00020000
> 21 :0x1e460000
> 22 :0x00530000
> 23 :0x00000000
> 24 :0x00000000
> 25 :0x00000000
> 26 :0x00000000
> 27 :0x00000000
> 28 :0x00000000
> 29 :0x00000000
> 30 :0x00000000
> 31 :0x00000000
> 32 :0x1ec00000
> 33 :0xb1620000
> 34 :0x007e0000
> 35 :0xb3af0000
> 36 :0xb3aa0000
> 37 :0x8c8d0000
> 38 :0x8b8a0000
> 39 :0x86870000
> 40 :0x00850000
> 41 :0x01620000
> 42 :0x000a0000
> 43 :0x00000000
> 44 :0x140a0000
> 45 :0x70380000
> 46 :0x0c130000
> 47 :0x06090000
> 48 :0x03050000
> 49 :0x02030000
> 50 :0xfa000000
> 51 :0x000b0000
> 52 :0x00030000
> 53 :0xe78f0000
> 54 :0x00000000
> 55 :0x00000000
> 56 :0x00000000
> 57 :0x00000000
> 58 :0x00000000
> 59 :0x00000000
> 60 :0x00000000
> 61 :0x00000000
> 62 :0x00000000
> 63 :0x00000000
> 64 :0x00000000
> 65 :0x00000000
> 66 :0x00000000
> 67 :0x00000000
> 68 :0x00000000
> 69 :0x00000000
> 70 :0x00000000
> 71 :0x00000000
> 72 :0x00000000
> 73 :0x00000000
> 74 :0x00000000
> 75 :0x00000000
> 76 :0x00000000
> 77 :0x00000000
> 78 :0x00000000
> 79 :0x00000000
> 80 :0x00000000
> 81 :0x00000000
> 82 :0x00000000
> 83 :0x00000000
> 84 :0x00000000
> 85 :0x00000000
> 86 :0x00000000
> 87 :0x00000000
> 88 :0x00000000
> 89 :0x00000000
> 90 :0x00000000
> 91 :0x00000000
> 92 :0x00000000
> 93 :0x00000000
> 94 :0x00000000
> 95 :0x00000000
> 96 :0x12210000
> 97 :0x00030000
> 98 :0x00000000
> 99 :0x00000000
> 100 :0x000f0000
> 101 :0x82060000
> 102 :0x821e0000
> 103 :0x91000000
> 104 :0x00000000
> 105 :0x0e070000
> 106 :0x54000000
> 107 :0x00000000
> 108 :0x00000000
> 109 :0x00000000
> 110 :0x00000000
> 111 :0x00000000
> 112 :0x032c0000
> 113 :0xfb580000
> 114 :0x63110000
> 115 :0x0a1f0000
> 116 :0x00000000
> 117 :0x00000000
> 118 :0x00000000
> 119 :0x00000000
> 120 :0x00000000
> 121 :0x00000000
> 122 :0x02e10000
> 123 :0x00000000
> 124 :0x00000000
> 125 :0x00000000
> 126 :0x00000000
> 127 :0x00000422
>
> eeprom
> 0 :0x2570
> 1 :0x0104
> 2 :0x1300
> 3 :0xe946
> 4 :0x8a8d
> 5 :0xffff
> 6 :0xffff
> 7 :0xffff
> 8 :0xffff
> 9 :0xffff
> 10 :0xffff
> 11 :0x2829
> 12 :0xfff0
> 13 :0x00ff
> 14 :0x112c
> 15 :0x1518
> 16 :0x1618
> 17 :0x3e00
> 18 :0xffff
> 19 :0xffff
> 20 :0xffff
> 21 :0xffff
> 22 :0xffff
> 23 :0xffff
> 24 :0xffff
> 25 :0xffff
> 26 :0xffff
> 27 :0xffff
> 28 :0xffff
> 29 :0xffff
> 30 :0x1717
> 31 :0x1717
> 32 :0x1717
> 33 :0x1717
> 34 :0x1617
> 35 :0x1616
> 36 :0x1616
> 37 :0xffff
> 38 :0xffff
> 39 :0xffff
> 40 :0xffff
> 41 :0xffff
> 42 :0xffff
> 43 :0xffff
> 44 :0xffff
> 45 :0xffff
> 46 :0xffff
> 47 :0xffff
> 48 :0x0032
> 49 :0x6880
> 50 :0x3850
> 51 :0x6f5f
> 52 :0xfa00
>
> bbp
> 0 :0x13
> 1 :0x55
> 2 :0x06
> 3 :0x02
> 4 :0x19
> 5 :0x0b
> 6 :0x10
> 7 :0x00
> 8 :0x00
> 9 :0x00
> 10 :0x00
> 11 :0x04
> 12 :0x01
> 13 :0xa8
> 14 :0x1a
> 15 :0x30
> 16 :0xac
> 17 :0x00
> 18 :0x18
> 19 :0xff
> 20 :0x1e
> 21 :0x18
> 22 :0x18
> 23 :0x08
> 24 :0x80
> 25 :0x50
> 26 :0x08
> 27 :0x23
> 28 :0x18
> 29 :0x18
> 30 :0x10
> 31 :0x2b
> 32 :0xb9
> 33 :0x55
> 34 :0x12
> 35 :0x50
> 36 :0x11
> 37 :0x05
> 38 :0x00
> 39 :0xc4
> 40 :0x02
> 41 :0x60
> 42 :0x09
> 43 :0x34
> 44 :0x0b
> 45 :0x6e
> 46 :0x70
> 47 :0x0a
> 48 :0x04
> 49 :0x02
> 50 :0x68
> 51 :0x18
> 52 :0x04
> 53 :0x10
> 54 :0x18
> 55 :0x2d
> 56 :0x08
> 57 :0x10
> 58 :0x08
> 59 :0x02
> 60 :0x3e
> 61 :0x5f
> 62 :0x00
> 63 :0x00
> 64 :0x01
> 65 :0x03
> 66 :0x00
> 67 :0x00
> 68 :0x00
> 69 :0x00
> 70 :0x46
> 71 :0x00
> 72 :0x00
> 73 :0x00
> 74 :0xd4
> 75 :0xff
> 76 :0x19
> 77 :0x05
> 78 :0x08
> 79 :0x00
> 80 :0x00
> 81 :0x05
> 82 :0x14
> 83 :0x50
> 84 :0xc0
> 85 :0x10
> 86 :0xcf
> 87 :0x00
> 88 :0x00
> 89 :0x00
> 90 :0x00
> 91 :0x00
> 92 :0x00
> 93 :0x00
> 94 :0x00
> 95 :0x00
>
> rf
> 0 :0x00000000
> 1 :0x00022010
> 2 :0x000008a6
> 3 :0x00062d11
> 4 :0x00000e07
> 2.6.25.4-1
> driver: rt2500usb
> version: 2.0.14
> compiled: Jun 13 2008 01:33:03
> dev_flags: 0x0001012f
> rt chip: 1201
> rf chip: 0005
> revision:00000005
>
> csr length: 128
> eeprom length: 53
> bbp length: 96
> rf length: 5
>
> csr
> 0 :0x00000005
> 1 :0x00000004
> 2 :0x00001300
> 3 :0x0000e946
> 4 :0x00008a8d
> 5 :0x00001300
> 6 :0x00005146
> 7 :0x00006510
> 8 :0x00000980
> 9 :0x0000ff1d
> 10 :0x00000014
> 11 :0x00000005
> 12 :0x0000016c
> 13 :0x00001111
> 14 :0x00001e11
> 15 :0x000001ee
> 16 :0x00000000
> 17 :0x000001fe
> 18 :0x0000005a
> 19 :0x0000ff00
> 20 :0x00000003
> 21 :0x00001e46
> 22 :0x00000053
> 23 :0x00000000
> 24 :0x00000000
> 25 :0x00000000
> 26 :0xffff0000
> 27 :0x00000000
> 28 :0x00000000
> 29 :0x00000000
> 30 :0x00000000
> 31 :0x00000000
> 32 :0x00001ec0
> 33 :0x0000b11a
> 34 :0x0000007e
> 35 :0x0000b3af
> 36 :0x0000b3aa
> 37 :0x00008c8d
> 38 :0x00008b8a
> 39 :0x00008687
> 40 :0x00000085
> 41 :0x00000162
> 42 :0x0000000e
> 43 :0x0000015f
> 44 :0x0000140a
> 45 :0x00007038
> 46 :0x00000c13
> 47 :0x00000609
> 48 :0x00000305
> 49 :0x00000203
> 50 :0x0000fa00
> 51 :0x00000003
> 52 :0x00000003
> 53 :0x0000e78f
> 54 :0x00000000
> 55 :0x00000000
> 56 :0x00000000
> 57 :0x00000000
> 58 :0x00000000
> 59 :0x00000000
> 60 :0x00000000
> 61 :0x00000000
> 62 :0x00000000
> 63 :0x00000000
> 64 :0x00000000
> 65 :0x00000000
> 66 :0x00000000
> 67 :0x00000000
> 68 :0x00000000
> 69 :0x00000000
> 70 :0x00000000
> 71 :0x00000000
> 72 :0x00000000
> 73 :0x00000000
> 74 :0x00000000
> 75 :0x00000000
> 76 :0x00000000
> 77 :0x00000000
> 78 :0x00000000
> 79 :0x00000000
> 80 :0x00000000
> 81 :0x00000000
> 82 :0x00000000
> 83 :0x00000000
> 84 :0x00000000
> 85 :0x00000000
> 86 :0x00000000
> 87 :0x00000000
> 88 :0x00000000
> 89 :0x00000000
> 90 :0x00000000
> 91 :0x00000000
> 92 :0x00000000
> 93 :0x00000000
> 94 :0x00000000
> 95 :0x00000000
> 96 :0x00001221
> 97 :0x00000003
> 98 :0x00000000
> 99 :0x00000000
> 100 :0x0000000f
> 101 :0x00008206
> 102 :0x0000821e
> 103 :0x00009160
> 104 :0x00000000
> 105 :0x00000e07
> 106 :0x00005400
> 107 :0x00000000
> 108 :0x00000000
> 109 :0x00000000
> 110 :0x00000000
> 111 :0x00000000
> 112 :0x00000000
> 113 :0x000001a9
> 114 :0x00000038
> 115 :0x00000000
> 116 :0x00000000
> 117 :0x00000000
> 118 :0x00000169
> 119 :0x00000011
> 120 :0x00000000
> 121 :0x00000000
> 122 :0x00000a01
> 123 :0x00000000
> 124 :0x00000000
> 125 :0x00000000
> 126 :0x00000000
> 127 :0x00000000
>
> eeprom
> 0 :0x2570
> 1 :0x0104
> 2 :0x1300
> 3 :0xe946
> 4 :0x8a8d
> 5 :0xffff
> 6 :0xffff
> 7 :0xffff
> 8 :0xffff
> 9 :0xffff
> 10 :0xffff
> 11 :0x2829
> 12 :0xfff0
> 13 :0x00ff
> 14 :0x112c
> 15 :0x1518
> 16 :0x1618
> 17 :0x3e00
> 18 :0xffff
> 19 :0xffff
> 20 :0xffff
> 21 :0xffff
> 22 :0xffff
> 23 :0xffff
> 24 :0xffff
> 25 :0xffff
> 26 :0xffff
> 27 :0xffff
> 28 :0xffff
> 29 :0xffff
> 30 :0x1717
> 31 :0x1717
> 32 :0x1717
> 33 :0x1717
> 34 :0x1617
> 35 :0x1616
> 36 :0x1616
> 37 :0xffff
> 38 :0xffff
> 39 :0xffff
> 40 :0xffff
> 41 :0xffff
> 42 :0xffff
> 43 :0xffff
> 44 :0xffff
> 45 :0xffff
> 46 :0xffff
> 47 :0xffff
> 48 :0x0032
> 49 :0x6880
> 50 :0x3850
> 51 :0x6f5f
> 52 :0xff37
>
> bbp
> 0 :0x13
> 1 :0x45
> 2 :0x1e
> 3 :0x02
> 4 :0x19
> 5 :0x09
> 6 :0x00
> 7 :0x0e
> 8 :0x00
> 9 :0x00
> 10 :0x00
> 11 :0x04
> 12 :0x00
> 13 :0x70
> 14 :0x1a
> 15 :0x30
> 16 :0xac
> 17 :0x60
> 18 :0x18
> 19 :0xff
> 20 :0x1e
> 21 :0x18
> 22 :0x18
> 23 :0x08
> 24 :0x68
> 25 :0x38
> 26 :0x08
> 27 :0x23
> 28 :0x18
> 29 :0x18
> 30 :0x10
> 31 :0x2b
> 32 :0xb9
> 33 :0x55
> 34 :0x12
> 35 :0x50
> 36 :0x11
> 37 :0x05
> 38 :0x00
> 39 :0xc4
> 40 :0x02
> 41 :0x60
> 42 :0x08
> 43 :0x01
> 44 :0x78
> 45 :0x00
> 46 :0x38
> 47 :0x0a
> 48 :0x04
> 49 :0x02
> 50 :0x68
> 51 :0x56
> 52 :0x2e
> 53 :0x10
> 54 :0x18
> 55 :0x7b
> 56 :0x08
> 57 :0x10
> 58 :0x08
> 59 :0x02
> 60 :0x3f
> 61 :0x6f
> 62 :0x00
> 63 :0x00
> 64 :0x01
> 65 :0x03
> 66 :0x00
> 67 :0x00
> 68 :0x00
> 69 :0x00
> 70 :0x46
> 71 :0x00
> 72 :0x00
> 73 :0x00
> 74 :0xd4
> 75 :0xff
> 76 :0x19
> 77 :0x05
> 78 :0x08
> 79 :0x00
> 80 :0x00
> 81 :0x05
> 82 :0x14
> 83 :0x50
> 84 :0xc0
> 85 :0x10
> 86 :0x74
> 87 :0x04
> 88 :0x00
> 89 :0x00
> 90 :0x00
> 91 :0x00
> 92 :0x00
> 93 :0x00
> 94 :0x00
> 95 :0x00
>
> rf
> 0 :0x00000000
> 1 :0x00022010
> 2 :0x000008a6
> 3 :0x00063711
> 4 :0x00000e07
> --- old.output-regdump.txt	2008-06-13 01:41:12.000000000 -0300
> +++ new.output-regdump.txt	2008-06-13 01:42:12.000000000 -0300
> @@ -1,8 +1,8 @@
> -2.6.26-rc5-2
> +2.6.25.4-1
>  driver: rt2500usb
> -version: 2.1.4
> -compiled: Jun  8 2008 17:08:54
> -dev_flags: 0x00000e2f
> +version: 2.0.14
> +compiled: Jun 13 2008 01:33:03
> +dev_flags: 0x0001012f
>  rt chip: 1201
>  rf chip: 0005
>  revision:00000005
> @@ -13,60 +13,60 @@
>  rf length: 5
>  
>  csr
> -0 :0x00050000
> -1 :0x00040000
> -2 :0x13000000
> -3 :0xe9460000
> -4 :0x8a8d0000
> -5 :0x13000000
> -6 :0x51460000
> -7 :0x65100000
> -8 :0x09800000
> -9 :0xff1d0000
> -10 :0x00140000
> -11 :0x000a0000
> -12 :0x013a0000
> -13 :0x11110000
> -14 :0x1e110000
> -15 :0x01ee0000
> +0 :0x00000005
> +1 :0x00000004
> +2 :0x00001300
> +3 :0x0000e946
> +4 :0x00008a8d
> +5 :0x00001300
> +6 :0x00005146
> +7 :0x00006510
> +8 :0x00000980
> +9 :0x0000ff1d
> +10 :0x00000014
> +11 :0x00000005
> +12 :0x0000016c
> +13 :0x00001111
> +14 :0x00001e11
> +15 :0x000001ee
>  16 :0x00000000
> -17 :0x01fe0000
> -18 :0x005a0000
> -19 :0xff000000
> -20 :0x00020000
> -21 :0x1e460000
> -22 :0x00530000
> +17 :0x000001fe
> +18 :0x0000005a
> +19 :0x0000ff00
> +20 :0x00000003
> +21 :0x00001e46
> +22 :0x00000053
>  23 :0x00000000
>  24 :0x00000000
>  25 :0x00000000
> -26 :0x00000000
> +26 :0xffff0000
>  27 :0x00000000
>  28 :0x00000000
>  29 :0x00000000
>  30 :0x00000000
>  31 :0x00000000
> -32 :0x1ec00000
> -33 :0xb1620000
> -34 :0x007e0000
> -35 :0xb3af0000
> -36 :0xb3aa0000
> -37 :0x8c8d0000
> -38 :0x8b8a0000
> -39 :0x86870000
> -40 :0x00850000
> -41 :0x01620000
> -42 :0x000a0000
> -43 :0x00000000
> -44 :0x140a0000
> -45 :0x70380000
> -46 :0x0c130000
> -47 :0x06090000
> -48 :0x03050000
> -49 :0x02030000
> -50 :0xfa000000
> -51 :0x000b0000
> -52 :0x00030000
> -53 :0xe78f0000
> +32 :0x00001ec0
> +33 :0x0000b11a
> +34 :0x0000007e
> +35 :0x0000b3af
> +36 :0x0000b3aa
> +37 :0x00008c8d
> +38 :0x00008b8a
> +39 :0x00008687
> +40 :0x00000085
> +41 :0x00000162
> +42 :0x0000000e
> +43 :0x0000015f
> +44 :0x0000140a
> +45 :0x00007038
> +46 :0x00000c13
> +47 :0x00000609
> +48 :0x00000305
> +49 :0x00000203
> +50 :0x0000fa00
> +51 :0x00000003
> +52 :0x00000003
> +53 :0x0000e78f
>  54 :0x00000000
>  55 :0x00000000
>  56 :0x00000000
> @@ -109,38 +109,38 @@
>  93 :0x00000000
>  94 :0x00000000
>  95 :0x00000000
> -96 :0x12210000
> -97 :0x00030000
> +96 :0x00001221
> +97 :0x00000003
>  98 :0x00000000
>  99 :0x00000000
> -100 :0x000f0000
> -101 :0x82060000
> -102 :0x821e0000
> -103 :0x91000000
> +100 :0x0000000f
> +101 :0x00008206
> +102 :0x0000821e
> +103 :0x00009160
>  104 :0x00000000
> -105 :0x0e070000
> -106 :0x54000000
> +105 :0x00000e07
> +106 :0x00005400
>  107 :0x00000000
>  108 :0x00000000
>  109 :0x00000000
>  110 :0x00000000
>  111 :0x00000000
> -112 :0x032c0000
> -113 :0xfb580000
> -114 :0x63110000
> -115 :0x0a1f0000
> +112 :0x00000000
> +113 :0x000001a9
> +114 :0x00000038
> +115 :0x00000000
>  116 :0x00000000
>  117 :0x00000000
> -118 :0x00000000
> -119 :0x00000000
> +118 :0x00000169
> +119 :0x00000011
>  120 :0x00000000
>  121 :0x00000000
> -122 :0x02e10000
> +122 :0x00000a01
>  123 :0x00000000
>  124 :0x00000000
>  125 :0x00000000
>  126 :0x00000000
> -127 :0x00000422
> +127 :0x00000000
>  
>  eeprom
>  0 :0x2570
> @@ -195,35 +195,35 @@
>  49 :0x6880
>  50 :0x3850
>  51 :0x6f5f
> -52 :0xfa00
> +52 :0xff37
>  
>  bbp
>  0 :0x13
> -1 :0x55
> -2 :0x06
> +1 :0x45
> +2 :0x1e
>  3 :0x02
>  4 :0x19
> -5 :0x0b
> -6 :0x10
> -7 :0x00
> +5 :0x09
> +6 :0x00
> +7 :0x0e
>  8 :0x00
>  9 :0x00
>  10 :0x00
>  11 :0x04
> -12 :0x01
> -13 :0xa8
> +12 :0x00
> +13 :0x70
>  14 :0x1a
>  15 :0x30
>  16 :0xac
> -17 :0x00
> +17 :0x60
>  18 :0x18
>  19 :0xff
>  20 :0x1e
>  21 :0x18
>  22 :0x18
>  23 :0x08
> -24 :0x80
> -25 :0x50
> +24 :0x68
> +25 :0x38
>  26 :0x08
>  27 :0x23
>  28 :0x18
> @@ -240,26 +240,26 @@
>  39 :0xc4
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> @@ -284,8 +284,8 @@
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> @@ -299,5 +299,5 @@
>  0 :0x00000000
>  1 :0x00022010
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> -3 :0x00062d11
> +3 :0x00063711
>  4 :0x00000e07
>
> --- End Message ---