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* [U-Boot] mmc erase fails from U-Boot command line
@ 2015-10-16 11:46 Cliff Brust
  2015-10-19 11:06 ` Hector Palacios
  0 siblings, 1 reply; 29+ messages in thread
From: Cliff Brust @ 2015-10-16 11:46 UTC (permalink / raw)
  To: u-boot

I have the need to erase our eMMC from U-Boot on our custom board due to 
a hard wired boot up configuration. Our design is based on the Freescale 
i.MX6Q SabreSD Board reference design. The bottom line is the U-Boot 
command "mmc erase" is failing with the error "Timeout waiting for DAT0 
to go high!".  Here's a list of the U-Boot commands issued and the 
result of each so you can see what is going on.
----------------------------------------
=> mmc list
FSL_SDHC: 0
FSL_SDHC: 1 (SD)
FSL_SDHC: 2 (eMMC)

=> mmc dev 2
switch to partitions #0, OK
mmc2(part 0) is current device

=> mmc info
Device: FSL_SDHC
Manufacturer ID: 45
OEM: 100
Name: SEM08
Tran Speed: 52000000
Rd Block Len: 512
MMC version 4.4.1
High Capacity: Yes
Capacity: 7.4 GiB
Bus Width: 8-bit
Erase Group Size: 512 KiB
HC WP Group Size: 16 MiB
User Capacity: 7.4 GiB WRREL
Boot Capacity: 2 MiB ENH
RPMB Capacity: 128 KiB ENH

=> mmc erase 0 0x400
MMC erase: dev # 2, block # 0, count 1024 ...
Timeout waiting for DAT0 to go high!
mmc erase failed
0 blocks erased: ERROR
----------------------------------------

Any insight on this issue is greatly appreciated.
Thanks,  Cliff

^ permalink raw reply	[flat|nested] 29+ messages in thread

end of thread, other threads:[~2016-01-04 22:23 UTC | newest]

Thread overview: 29+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-10-16 11:46 [U-Boot] mmc erase fails from U-Boot command line Cliff Brust
2015-10-19 11:06 ` Hector Palacios
2015-11-12 20:56   ` Fabio Estevam
2015-11-13 12:26     ` Palacios, Hector
2015-11-13 14:37       ` Fabio Estevam
2015-11-16 15:23         ` Fabio Estevam
2015-11-16 15:30           ` Fabio Estevam
2015-12-01 19:05             ` Eric Nelson
2015-12-02 17:23               ` Fabio Estevam
2015-12-02 18:47                 ` Eric Nelson
2015-12-02 18:52                   ` Fabio Estevam
2015-12-02 19:28                     ` Eric Nelson
2015-12-02 19:53                       ` Fabio Estevam
2015-12-04 16:35                         ` Eric Nelson
2015-12-04 16:37                           ` Fabio Estevam
2015-12-04 22:42                           ` Eric Nelson
2015-12-05  0:19                             ` Fabio Estevam
2015-12-07  0:21                             ` Fabio Estevam
2015-12-07 14:36                               ` Eric Nelson
2015-12-02 19:37                     ` Michael Trimarchi
2015-12-02 19:54                       ` Fabio Estevam
2015-12-02 20:00                         ` Michael Trimarchi
2015-12-04 16:08                           ` Eric Nelson
2015-12-04 16:50                             ` Eric Nelson
2015-12-04 17:06                               ` Michael Trimarchi
2015-12-07 14:50                               ` [U-Boot] [PATCH] mmc: update MMC_ERASE argument to match Linux kernel Eric Nelson
2015-12-09 10:55                                 ` Hector Palacios
2015-12-22  9:55                                   ` Fabio Estevam
2016-01-04 22:23                                 ` [U-Boot] " Tom Rini

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