Testing the SD Card Driver for Raspberry Pi Model B

[Waldo Paz Rodriguez]

Hi Norman, the serial output I sent you in the previous mail is for high 
capacity SD cards.

Best Regards, waldo

On 04/09/15 04:52, Norman Feske wrote:
> Hello Waldo,
>
>> [init -> test-blk-cli] reading block 0 - 131071, 246 per request
>> [init -> sd_card_drv] -> index=0x00000012, arg=0x00000000, rsp_type=2
>> [init -> sd_card_drv] command timed out
>> [init -> sd_card_drv] Read_multiple_block failed, Status: 0x01ff0207
>> [init -> test-blk-cli] Test failed!
>> [init -> test-blk-cli] couldn't read block 0 - 246
> you seem to be using a non-HC SD-card. So far, the driver has been used
> and tested with high-capacity (HC) cards only. So you are walking on new
> ground. But just to double check that we are not entirely on the wrong
> track, may you give a high-capacity card a try?
>
> I suspect that the driver issues commands not understood by your
> standard-capacity card. For example, as far as I remember, the block
> addresses are specified in differently between the standard and
> high-capacity protocol versions. But there may be also other subtle
> differences between the protocol versions. To solve this issue, you may
> need to review the SD protocol specification [1] for the
> standard-capacity version and compare the SD protocol code [2] against it.
>
> [1] https://www.sdcard.org/downloads/pls/part1_410.pdf
> [2] repos/os/src/drivers/sd_card/sd_card.h
>      repos/os/src/drivers/sd_card/rpi/sdhci.h
>
> Best regards
> Norman
>