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Additional Kinetis SDHC fixes

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3906 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2011-08-22 22:03:11 +00:00
parent 4c5d5b8192
commit c2aa7d046c
3 changed files with 59 additions and 53 deletions
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drivers/mmcsd/mmcsd_sdio.c
+1 -2
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@@ -76,7 +76,6 @@
/* Timing (all in units of microseconds) */
#define MMCSD_
#define MMCSD_POWERUP_DELAY ((useconds_t)250) /* 74 clock cycles @ 400KHz = 185uS */
#define MMCSD_IDLE_DELAY ((useconds_t)50000) /* Short delay to allow change to IDLE state */
#define MMCSD_DSR_DELAY ((useconds_t)100000) /* Time to wait after setting DSR */
@@ -86,7 +85,7 @@
*
* For MMC & SD V1.x, these should be based on Nac = TAAC + NSAC; The maximum
* value of TAAC is 80MS and the maximum value of NSAC is 25.5K clock cycle.
* For SD V2.x, a fixed delay of 100MS is recommend which is preety close to
* For SD V2.x, a fixed delay of 100MS is recommend which is pretty close to
* the worst case SD V1.x Nac. Here we just use 100MS delay for all data
* transfers.
*/