linux-kernel - Re: [PATCH 0/3] ARM: dts: Enable EDMA, MMC and SPI on AM33XX for v3.13

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <523190D6.1070904@newflow.co.uk>
Date:	Thu, 12 Sep 2013 11:00:54 +0100
From:	Mark Jackson <mpfj-list@...flow.co.uk>
To:	Joel Fernandes <joelf@...com>
CC:	Benoit Cousson <bcousson@...libre.com>, Nishanth Menon <nm@...com>,
	Devicetree Discuss <devicetree@...r.kernel.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>
Subject: Re: [PATCH 0/3] ARM: dts: Enable EDMA, MMC and SPI on AM33XX for
 v3.13

On 10/09/13 20:24, Joel Fernandes wrote:
> Here are last few patches required to add EDMA and MMC/SPI support for AM33xx.
> 
> Now that all dependent DMA patches and fixes are in linux next or mainline, except
> for [1] which should go in for 3.12 -rc cycle, it is safe to enable MMC and SPI support
> and this patch series enables it. These are originally Matt Porter's patches with
> changes to make it work with recent kernels, addition of irq, memory resources and
> enable other extra properties.
> 
> These patches should cleanly apply on master branch after Koen's patch [2] for basic
> BBB DT support is applied.
> 
> MMC support is enabled for: Beaglebone, AM335x EVM and EVM-SK boards. MMC support
> for BBB is intentionally not added due to custom fixes and other patches that are
> in Koen's tree and which will be separately submitted by him.
> 
> [1] http://marc.info/?l=linux-omap&m=137883926226451&w=2
> [2] http://comments.gmane.org/gmane.linux.kernel.stable/63648
> 
> Matt Porter (3):
>   ARM: dts: add AM33XX EDMA support
>   ARM: dts: add AM33XX SPI DMA support
>   ARM: dts: add AM33XX MMC support and documentation
> 
>  .../devicetree/bindings/mmc/ti-omap-hsmmc.txt      | 26 +++++++++-
>  arch/arm/boot/dts/am335x-bone.dts                  | 11 ++++
>  arch/arm/boot/dts/am335x-evm.dts                   |  7 +++
>  arch/arm/boot/dts/am335x-evmsk.dts                 |  7 +++
>  arch/arm/boot/dts/am33xx.dtsi                      | 60 ++++++++++++++++++++++
>  5 files changed, 110 insertions(+), 1 deletion(-)

This is not (quite) working for me on our custom AM335x board.

Everything compiles fine, but I get the following in the boot log:-

[    1.339805] omap_hsmmc 48060000.mmc: vmmc regulator missing

I can see that the regulator *does* get enabled, but later on in the boot process !!

[    1.568731] DCDC1: at 1500 mV
[    1.574454] vdd_mpu: 925 <--> 1325 mV at 1100 mV
[    1.581754] vdd_core: 925 <--> 1150 mV at 1100 mV
[    1.589093] LDO1: at 1800 mV
[    1.594515] LDO2: at 3300 mV
[    1.599820] LDO3: 1800 <--> 3300 mV at 1800 mV
[    1.606872] LDO4: at 3300 mV
[    1.611901] tps65217 0-0024: TPS65217 ID 0xe version 1.2

I can only think this is the cause of the issue.

However ... cards plugged into the sd card slot are seen and are mount-able.

I've attached my board dts and .config if that helps.

Any clues ?

Cheers
Mark J.

View attachment ".config" of type "text/plain" (61945 bytes)

View attachment "am335x-nano.dts" of type "text/plain" (10058 bytes)