From: "David Müller (ELSOFT AG)" <d.mueller@elsoft.ch>
To: linux-mmc@vger.kernel.org
Subject: "Card stuck in programming state! __mmc_switch" problem on i.MX6 + eMMC
Date: Tue, 16 Sep 2014 16:37:13 +0200 [thread overview]
Message-ID: <54184B19.4080909@elsoft.ch> (raw)
Hello
I have a custom i.MX6Q based board with a Hynix eMMC chip attached to
USDHC3. OS is a vanilla Linux 3.16 with some patches.
Loading the iMX SDHC driver results in the following error:
modprobe sdhci-esdhc-imx
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
mmc0: no vqmmc regulator found
mmc0: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
mmc0: BKOPS_EN bit is not set
mmc0: Card stuck in programming state! __mmc_switch
mmc0: error -110 whilst initialising MMC card
mmc0: BKOPS_EN bit is not set
mmc0: Card stuck in programming state! __mmc_switch
mmc0: error -110 whilst initialising MMC card
mmc0: BKOPS_EN bit is not set
mmc0: Card stuck in programming state! __mmc_switch
mmc0: error -110 whilst initialising MMC card
mmc0: BKOPS_EN bit is not set
mmc0: Card stuck in programming state! __mmc_switch
mmc0: error -110 whilst initialising MMC card
Pin muxing looks ok nevertheless I played around with it to see if it
makes a difference. I also tried the "Add delay between CMD6 and CMD13
for Sandisk eMMC cards" workaround previously mentioned on this list.
As the whole thing is working under U-Boot as shown below, I tend to
rule out soldering problems and non-functional hardware.
=> ver
U-Boot 2014.07-00045-g0955ecc-dirty (Aug 26 2014 - 12:47:21)
=> mmc dev 1
switch to partitions #0, OK
mmc1(part 0) is current device
=> mmc info
Device: FSL_SDHC
Manufacturer ID: 90
OEM: 14a
Name: H8G2d
Tran Speed: 52000000
Rd Block Len: 512
MMC version 4.41
High Capacity: Yes
Capacity: 7.2 GiB
Bus Width: 8-bit
Any idea what is going wrong?
Has anybody a Hynix eMMC working under Linux?
next reply other threads:[~2014-09-16 14:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 14:37 David Müller (ELSOFT AG) [this message]
2014-09-16 15:14 ` "Card stuck in programming state! __mmc_switch" problem on i.MX6 + eMMC Jean-Michel Hautbois
2014-09-17 7:45 ` David Müller (ELSOFT AG)
2014-09-30 0:35 ` Fabio Estevam
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