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From: | Igor Mitsyanko |
Subject: | Re: [Qemu-devel] [PATCH v1 1/2] SDHCI: inital version |
Date: | Mon, 02 Apr 2012 12:38:43 +0400 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.28) Gecko/20120313 Thunderbird/3.1.20 |
On 04/02/2012 12:00 PM, Andreas Färber wrote:
Am 02.04.2012 09:20, schrieb Peter Maydell:On 2 April 2012 07:24, Peter A. G. Crosthwaite <address@hidden> wrote:device more for standard SD host controller interface (SDHCI). Signed-off-by: Peter A. G. Crosthwaite<address@hidden>So how does this compare with Vincent Palatin's version? (http://patchwork.ozlabs.org/patch/106767/) I'm guessing from the copyright string that it's a modified version -- it would be nice to say what the differences are....and what the differences to Samsung's version are. We should probably also cc Kevin on the topic. Andreas
It looks like this sdhc implements version 1 of standard SDHC specification, while ours implements second version. Second version should be backwards compatible with first, I didn't want to submit it yet to see if vmstate issue will be resolved or not. And also the whole QEMU SD emulation scheme needs some refactoring which I've been busy with for a while now. The biggest issues are that currently we cannot hot-insert SD card into virtual board interface and we do not take any advantage of QOM (which is hard until Paolo's and Andrea's patches land in master). The one advantage of our SDHCI implementation is that it provides interface to implement SoC-specific successors of standart SDHCI. I'll send these patches today (even though I wanted to do a lot more refactoring with them), Peter, could you please test them to find out if you can use them instead of your SDHCI implementation?
-- Mitsyanko Igor ASWG, Moscow R&D center, Samsung Electronics email: address@hidden
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