From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Zhu Subject: Questions on Slimbus on OMAP4460 PandaboardES Date: Fri, 03 May 2013 18:22:25 +0800 Message-ID: <51838FE1.5080407@acuti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pa0-f49.google.com ([209.85.220.49]:48014 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761957Ab3ECK0v (ORCPT ); Fri, 3 May 2013 06:26:51 -0400 Received: by mail-pa0-f49.google.com with SMTP id bi5so146825pad.36 for ; Fri, 03 May 2013 03:26:50 -0700 (PDT) Received: from [192.168.1.101] ([210.76.108.115]) by mx.google.com with ESMTPSA id zo4sm9501894pbc.21.2013.05.03.03.26.48 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 03 May 2013 03:26:49 -0700 (PDT) Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Hi Guys, I am interesting on Slimbus interface on my pandaboardES, which has OMAP4460 processor. I followed resource from web to boot up my board and I connect two fly wires to connect to slimbus1 interface. (Disconnect R7/R6 on WiLink modules). It is slimbus1 clk and data. I modified my u-boot pin mux, MCBSP1_CLKX and MCBSP1_DR. That gives slimbus function on power up. And I put u-boot, x-loader and 3.9.0 kernel (www.kernel.org) on it. I noted lots of hwmod and clock patch on include in 3.9-rc6 version. (Tony Lindgren made this tag) As I am new guy to run this linux driver. I have some questions on slimbus integration. 1. 'omap44xx_slimbus1_hwmod' can be a initialize function for slimbus? I compare 4460 TRM on slimbus programming guide, Page 5176. It is almost same, but I just confused on PRCM initialization. How to enable ABE_24M_FCLK? 2. I find slimbus driver on http://lwn.net/Articles/454945/ . This driver seems for Qualcomm BB processor. How do I make entry from this driver to hwmod? I find init and slimbus_dev struct. But I could not make connection between hwmod and this driver. 3. From all information, I saw TI was not intend customer to use SLIMBUS on OMAP. So is it a deep hole for me to run slimbus on pandaboard. Or is it someone successful connect slimbus to external peripherals? Thanks Jason