Hi Chris,
Sorry for the late response. Below is the patch based on Linux 3.8.4.
Please help to check it. Thanks!
diff --git a/linux-3.8.4/drivers/mmc/core/mmc_ops.c b/linux-3.8_new/drivers/mmc/
index 6d8f701..a3ca845 100644
--- a/linux-3.8.4/drivers/mmc/core/mmc_ops.c
+++ b/linux-3.8_new/drivers/mmc/core/mmc_ops.c
@@ -560,6 +560,7 @@ mmc_send_bus_test(struct mmc_card *card, struct mmc_host *ho
else
data.flags = MMC_DATA_WRITE;
+ mmc_set_data_timeout(&data,card);
data.sg = &sg;
data.sg_len = 1;
sg_init_one(&sg, data_buf, len);
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Chris Ball
Sent: Thursday, June 27, 2013 10:52 PM
To: Minjian Wu (minjianwu)
Cc: [email protected]
Subject: Re: eMMC bus test command failure
Hi Minjian,
On Sun, May 26 2013, Minjian Wu (minjianwu) wrote:
> Hi,
>
> I got one issue on Linux V3.7 as following.
> > mmc0: switch to bus width 1 ddr 0 failed
> > mmc0: error -110 whilst initialising MMC card
>
> After debugging and checking the source codes, we find that
> in mmc_send_bus_test function, there is no data timeout
> setting(mmc_set_data_timeout). After we add the timeout setting
> function, this issue is fixed, could you help confirm it? Thank you!
Please could you submit the patch you used?
Thanks,
- Chris.
--
Chris Ball <[email protected]> <http://printf.net/>
One Laptop Per Child
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