Re: [Sdio-linux-devel] Kernel panic for sd memory

[Paul L. <pl...@at...>]

The HCD must not indicate that it supports SG DMA if it does not. This
would be a fatal error.
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Are you using a formatted SD memory card for this test? Try one with a
small size for testing say <1GB
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Paul

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From: boku [mailto:bok...@gm...]=20
Sent: Tuesday, June 12, 2007 2:40 AM
To: sdi...@li...
Subject: Re: [Sdio-linux-devel] Kernel panic for sd memory



I've checked my SDHC driver and found it doesn't support DMA but report
it can support.=20

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This comes out a thought that if no DMA is support by SDHC, the
pReq->pDataBuffer is simply as a data buffer pointer=20
instead of being a pointer to the SGlist data structure. Is it? I think
that's the problem. Sorry about this confusion.=20
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However, I met another problem while keep going on.=20
=3D> While I try to mount the sd memory device, it complains:
         /dev/sdio0p1 is not a valid block device
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I followed the steps shown in the sdio-linux reference document. Below
are some info I did.=20
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-sh-2.05b# ls -l /dev/sdio*
brw-r--r--  1 root root 254,   1 Jun  8  2007 /dev/sdio0p1



-sh-2.05b# cat /proc/devices=20
Character devices:
  1 mem
  2 pty
  3 ttyp
  4 /dev/vc/0
  4 tty
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  7 vcs
 10 misc
 13 input=20
 21 sg
 29 fb
 81 video4linux
 86 ch
 90 mtd
128 ptm
136 pts
204 ttyAM
204 ttyAMA

Block devices:
  1 ramdisk
  7 loop
 31 mtdblock
254 sdmem

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-sh-2.05b# mount -t vfat /dev/sdio0p1 /mnt/sdmem/
+SDIO Memory Function: Open
-SDIO Memory Function: Open
+SDIO Memory Function: Release(INST=3D0xc7263c00)
-SDIO Memory Function: Release
mount: /dev/sdio0p1 is not a valid block device

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The message of insert module is as follows:=20
=2E......
SDIO Memory Function: Probe - creating disk=20
+SDIO Memory Function: CreateDisk
SDIO Memory Function: blk_init_Q using DiskRequest
SDIO Memory Function: block size 512
SDIO Memory Function: setting block size 512=20
SDIO Memory Function: CreateDisk: size 1983488 (Size 992000,
FileSysBlockSize 512)
+SDIO Memory Function: Open
-SDIO Memory Function: Open
SDIO Memory Function: ReadBlocks reading, count/size length 8/512 4096
cmd: 18=20
SDIO MUSTANG HOST SetUpHCDDMA (RX) Blocks:8, BlockLen:512
SDIO MUSTANG HOST HcdRequest RX Data Transfer, Blocks:8, BlockLen:512=20
HcdRequest - RespType:1, Flgs=3D0x00004201, Command:18 , Arg:0x0,
txMode=3D0x00000014
SDIO Bus Driver: HCD returned status:3 on request: 0xC7295F00,
(CMD:18)(Flags:00004201)=20
HcdSDInterrupt, ints: 0x281F errors: 0x0, sigenables: 0x2000,
statenable: 0x733F errorenables:0x7F7F
GetResp=3D00000012 00000900=20
HcdSDInterrupt - RX Data Transfer Complete with status:0
-HcdSDInterrupt
SDIO Bus Driver: Sync-Op signal waiting....
SDIO Bus Driver: SDIO_HandleHcdEvent, event type 0x4, HCD:0xBF0178D8
SDIO Bus Driver: _SDIO_HandleHcdEvent, event type 0x4, HCD:0xBF0178D8=20
+SDIO Bus Driver: Handling Transfer Done (CMD:18, Status:0,
Flags=3D00004201, Req=3D0xc7295f00) from HCD:0xBF0178D8=20
SDIO Bus Driver: Queue idle=20
SDIO Bus Driver: Calling completion on request:0xC7295F00, CMD:18=20
-SDIO Bus Driver: Transfer Done Handled=20
-SDIO Memory Function: DiskRequest
+SDIO Memory Function: Release(INST=3D0xc7245c00)
-SDIO Memory Function: Release
-SDIO Memory Function: CreateDisk major: 254, minors: 8, first_minor: 0=20
-SDIO Memory Function: CreateDisk

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