From: Paul Walmsley <paul@pwsan.com>
To: Rajendra Nayak <rnayak@ti.com>
Cc: mturquette@ti.com, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 00/29] Move OMAP2+ over to use COMMON clock
Date: Sat, 15 Sep 2012 05:32:59 +0000 (UTC) [thread overview]
Message-ID: <alpine.DEB.2.00.1209150527080.3370@utopia.booyaka.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1209110403130.23042@utopia.booyaka.com>
On Tue, 11 Sep 2012, Paul Walmsley wrote:
> The kernel built with omap2plus_defconfig was then booted on several
> OMAP2+ boards. Here's what was found:
[ ... ]
> - The 2420 N800 seems to have some kind of MMC-related problem
> that prevents it from booting. Still looking into this:
>
> http://www.pwsan.com/omap/testlogs/common_clk_testing_devel_3.7/20120911000742/boot/2420n800/2420n800_log.txt
This has been resolved. The APLL clocks have been missing rate
recalculation functions for a long time. This wasn't a problem in the
past because these were considered fixed rate clocks (at the locked
frequency). But in the CCF conversion, the fixed rate was dropped. This
caused the MMC functional clock to be set incorrectly to the sys_clk rate.
This in turn caused the MMC driver's timing calculation code to return the
wrong value, preventing meaningful MMC/SD access.
The problem was resolved by creating recalc_rate function pointers for the
APLLs that return sys_ck if the APLL is bypassed, or the APLL rate if it's
locked, for both 2420 and 2430.
- Paul
WARNING: multiple messages have this Message-ID (diff)
From: paul@pwsan.com (Paul Walmsley)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/29] Move OMAP2+ over to use COMMON clock
Date: Sat, 15 Sep 2012 05:32:59 +0000 (UTC) [thread overview]
Message-ID: <alpine.DEB.2.00.1209150527080.3370@utopia.booyaka.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1209110403130.23042@utopia.booyaka.com>
On Tue, 11 Sep 2012, Paul Walmsley wrote:
> The kernel built with omap2plus_defconfig was then booted on several
> OMAP2+ boards. Here's what was found:
[ ... ]
> - The 2420 N800 seems to have some kind of MMC-related problem
> that prevents it from booting. Still looking into this:
>
> http://www.pwsan.com/omap/testlogs/common_clk_testing_devel_3.7/20120911000742/boot/2420n800/2420n800_log.txt
This has been resolved. The APLL clocks have been missing rate
recalculation functions for a long time. This wasn't a problem in the
past because these were considered fixed rate clocks (at the locked
frequency). But in the CCF conversion, the fixed rate was dropped. This
caused the MMC functional clock to be set incorrectly to the sys_clk rate.
This in turn caused the MMC driver's timing calculation code to return the
wrong value, preventing meaningful MMC/SD access.
The problem was resolved by creating recalc_rate function pointers for the
APLLs that return sys_ck if the APLL is bypassed, or the APLL rate if it's
locked, for both 2420 and 2430.
- Paul
next prev parent reply other threads:[~2012-09-15 5:33 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-14 12:46 [PATCH 00/29] Move OMAP2+ over to use COMMON clock Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 01/29] clk: Add support for rate table based dividers Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-18 20:04 ` Mike Turquette
2012-06-18 20:04 ` Mike Turquette
2012-06-19 5:22 ` Rajendra Nayak
2012-06-19 5:22 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 02/29] clk: Add CLK_IS_BASIC flag to identify basic clocks Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-07-03 12:34 ` Rajendra Nayak
2012-07-03 12:34 ` Rajendra Nayak
2012-07-04 6:18 ` Turquette, Mike
2012-07-04 6:18 ` Turquette, Mike
2012-07-04 6:39 ` Rajendra Nayak
2012-07-04 6:39 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 03/29] ARM: omap4: cm: add bitfield width values Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 04/29] ARM: omap: clk: use clk_prepare_enable and clk_disable_unprepare Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 19:11 ` Mike Turquette
2012-06-14 19:11 ` Mike Turquette
2012-06-15 4:56 ` Rajendra Nayak
2012-06-15 4:56 ` Rajendra Nayak
2012-06-20 11:41 ` Tony Lindgren
2012-06-20 11:41 ` Tony Lindgren
2012-06-21 5:36 ` Rajendra Nayak
2012-06-21 5:36 ` Rajendra Nayak
2012-06-21 5:43 ` Paul Walmsley
2012-06-21 5:43 ` Paul Walmsley
2012-06-21 5:49 ` Rajendra Nayak
2012-06-21 5:49 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 05/29] mmc: omap_hsmmc: " Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 06/29] hwrng: omap: " Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 07/29] mfd: omap-usb: " Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-07-02 11:18 ` Samuel Ortiz
2012-07-02 11:18 ` Samuel Ortiz
2012-07-02 11:16 ` Rajendra Nayak
2012-07-02 11:16 ` Rajendra Nayak
2012-07-02 15:23 ` Samuel Ortiz
2012-07-02 15:23 ` Samuel Ortiz
2012-06-14 12:46 ` [PATCH 08/29] ARM: omap: hwmod: get rid of all omap_clk_get_by_name usage Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 12:46 ` [PATCH 09/29] ARM: omap: clk: Nuke plat/clock.c & reuse struct clk as clk_hw_omap Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-19 1:38 ` Mike Turquette
2012-06-19 1:38 ` Mike Turquette
2012-06-14 12:46 ` [PATCH 10/29] ARM: omap: clk: Remove all direct dereferncing of struct clk Rajendra Nayak
2012-06-14 12:46 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 11/29] ARM: omap: hwmod: Fix up hwmod based clkdm accesses Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 12/29] ARM: omap4: clk: Convert to common clk Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 13/29] ARM: omap3: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 14/29] ARM: omap2: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 15/29] ARM: omap: clk: list all clk_hw_omap clks to enable/disable autoidle Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 16/29] ARM: omap: clk: Define a function to enable clocks at init Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 17/29] ARM: omap: clock: Get rid of unwanted clkdm assocations within clks Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 18/29] ARM: omap4: clk: Add 44xx data using common struct clk Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 19/29] ARM: omap3: clk: Add 3xxx " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 20/29] ARM: omap2: clk: Add 24xx " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 21/29] ARM: omap: clk: Switch to COMMON clk Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 22/29] ARM: omap: clk: Use plat/clock.c only for OMAP1 Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 23/29] ARM: omap: hwmod: Cleanup !CONFIG_COMMON_CLK parts Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 24/29] ARM: omap4: clk: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 25/29] ARM: omap3: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 26/29] ARM: omap2: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 27/29] ARM: omap4: clk: Delete old OMAP clock data Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 28/29] ARM: omap3: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-14 12:47 ` [PATCH 29/29] ARM: omap2: " Rajendra Nayak
2012-06-14 12:47 ` Rajendra Nayak
2012-06-18 4:27 ` [PATCH 00/29] Move OMAP2+ over to use COMMON clock Paul Walmsley
2012-06-18 4:27 ` Paul Walmsley
2012-06-18 11:03 ` Rajendra Nayak
2012-06-18 11:03 ` Rajendra Nayak
2012-09-11 6:35 ` Paul Walmsley
2012-09-11 6:35 ` Paul Walmsley
2012-09-11 9:46 ` Vaibhav Hiremath
2012-09-11 9:46 ` Vaibhav Hiremath
2012-09-11 23:10 ` Paul Walmsley
2012-09-11 23:10 ` Paul Walmsley
2012-09-12 3:53 ` Hiremath, Vaibhav
2012-09-12 3:53 ` Hiremath, Vaibhav
2012-09-11 20:09 ` Paul Walmsley
2012-09-11 20:09 ` Paul Walmsley
2012-09-15 5:32 ` Paul Walmsley [this message]
2012-09-15 5:32 ` Paul Walmsley
2012-09-15 5:49 ` Paul Walmsley
2012-09-15 5:49 ` Paul Walmsley
2012-09-16 20:36 ` Paul Walmsley
2012-09-16 20:36 ` Paul Walmsley
2012-09-17 21:26 ` Tony Lindgren
2012-09-17 21:26 ` Tony Lindgren
2012-09-17 22:12 ` Paul Walmsley
2012-09-17 22:12 ` Paul Walmsley
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