Hi,
On 04/08/2013 12:52 PM, Tushar Behera wrote:
On 04/07/2013 10:27 AM, Jagan Teki wrote:
Hi,
I saw that you have been added the SDHCI_QUIRK_WAIT_SEND_CMD on below commit http://git.denx.de/?p=u-boot.git;a=commitdiff;h=13243f2eafc4292917178051fe1b...
I need few quires regarding the QUIRK delay.
- Why the delay is 1000
if (host->quirks & SDHCI_QUIRK_WAIT_SEND_CMD)udelay(1000);
- is this delay specific to s5p_sdhci controller?
This was specific to s5p_sdhci driver so as to replicate the behavior of s5p_mmc driver.
It didn't be denoted to use the udelay(1000) in spec. But To ensure the completing previous request, it has added the udelay(1000).
- I have an issue "Controller never released inhibit bit(s)" but when I enable this quirk on my driver with udelay(10000), it's
working.
udelay(10000)? It's too long delay time for completing the request. Which SoC do you use?
If we can use the get_timer() for busy-waiting, i think that we can remove the udelay().
Best Regards, Jaehoon Chung
I am not sure about the exact delay as per the spec. I have added Jaehoon to CC who might have additional information about this.
Could you please help me.
Thanks, Jagan.