iMX53 quick start board and SD/MMC

iMX53 quick start board and SD/MMC

[Michael Hunold]

Hello all,

I am trying to setup a iMX53 quick start board. This is my first
encounter with Freescale, so please bear with me.

I used the Code Sourcery arm-2011.03 toolchain and a stock Linux 3.2.8
kernel. I used "imx_v4_v5_defconfig" and selected support for the "LOCO"
board, nothing more.

For the root filesystem I used a stock buildroot-2011.11. For the
beginning, I boot the system using NFS root filesystem.

The board boots just fine, but the SD/MMC card slot(s) are not
recognised by the kernel.

I see mxcmci_init() is getting called, but not the probe routine. Did I
miss anything important?

Can somebody confirm that the board works with stock Linux 3.2.8 kernel
at all?

I noticed that "imx-sdma imx35-sdma: firmware not found" is printed on
the console. I understand that the iMX53 has a special DMA engine, but
is it necessary for the SD/MMC card slots to function?

If so, where is the official source for the necessary firmware?

Thanks and best regards
Michael.

iMX53 quick start board and SD/MMC

[Baruch Siach]

Hi Michael,

On Wed, Feb 29, 2012 at 12:53:01PM +0100, Michael Hunold wrote:
> I am trying to setup a iMX53 quick start board. This is my first
> encounter with Freescale, so please bear with me.
> 
> I used the Code Sourcery arm-2011.03 toolchain and a stock Linux 3.2.8
> kernel. I used "imx_v4_v5_defconfig" and selected support for the "LOCO"
> board, nothing more.

You should probably consider using imx_v6_v7_defconfig, since i.MX53 is based 
on ARMv7.

baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
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iMX53 quick start board and SD/MMC

[Michael Hunold]

Hello Baruch,

on 29.02.2012 13:22 Baruch Siach said the following:
> You should probably consider using imx_v6_v7_defconfig, since i.MX53 is based 
> on ARMv7.

thank you very much. That was a hint in the right direction.

I had to choose "mx5_defconfig" instead.

> baruch

CU
Michael.

iMX53 quick start board and SD/MMC

[Baruch Siach]

Hi Michael

On Wed, Feb 29, 2012 at 01:45:52PM +0100, Michael Hunold wrote:
> on 29.02.2012 13:22 Baruch Siach said the following:
> > You should probably consider using imx_v6_v7_defconfig, since i.MX53 is based 
> > on ARMv7.
> 
> thank you very much. That was a hint in the right direction.
> 
> I had to choose "mx5_defconfig" instead.

Note that mx5_defconfig is removed since commit 3f07f3557 (ARM i.MX: Update 
defconfig), which is present in v3.3-rc2.

baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -