linux-kernel - Re: [PATCH v5 0/9] Add sd/emmc support for stih407 family silicon

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Message-ID: <5541E7C5.1000903@st.com>
Date:	Thu, 30 Apr 2015 10:28:53 +0200
From:	Maxime Coquelin <maxime.coquelin@...com>
To:	Ulf Hansson <ulf.hansson@...aro.org>,
	Peter Griffin <peter.griffin@...aro.org>
CC:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Patrice CHOTARD <patrice.chotard@...com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Lee Jones <lee.jones@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-mmc <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH v5 0/9] Add sd/emmc support for stih407 family silicon

Hi Ulf,

On 04/10/2015 01:06 PM, Ulf Hansson wrote:
> On 10 April 2015 at 11:40, Peter Griffin <peter.griffin@...aro.org> wrote:
>> Hi,
>>
>> This series adds sd/emmc support to the sdhci-st.c driver for stih407
>> family silicon. The changes mainly involve configuring some extra glue
>> registers in the flashSS which configure the Arasan controller.
>>
>> This series also adds support for UHS modes for eMMC. To allow
>> UHS HS200/SD104 modes to function correctly, due to the
>> tight timing constriants, support for delay management is also added.
>> Two types of delay management are supported, static delay management and
>> dynamic delay management, this delay management is only available
>> on eMMC pads on stih410 and later silicon.
>>
>> This series has been tested with stih410-b2120 revd on eMMC and sd, at
>> various clock speeds. As part of this testing a bug was also found in the
>> upstream flexgen clock set_rate implementation (now fixed upstream).
>>
>>      max-frequency = 200Mhz
>>      /dev/mmcblk0p1:
>>       Timing buffered disk reads: 270 MB in  3.02 seconds =  89.54 MB/sec
>>
>>      max-frequency = 100Mhz
>>      root@...ian-armhf:~# hdparm -t /dev/mmcblk0p1
>>      /dev/mmcblk0p1:
>>       Timing buffered disk reads: 210 MB in  3.00 seconds =  70.00 MB/sec
>>
>>      max-frequency = 50Mhz
>>      root@...ian-armhf:~# hdparm -t /dev/mmcblk0p1
>>      /dev/mmcblk0p1:
>>       Timing buffered disk reads: 118 MB in  3.00 seconds =  39.28 MB/sec
>>
>> It has also been tested on stih416-b2020 to ensure we have caused no
>> regressions. Finally the dt documentation has been updated to reflect
>> the changes in the driver code. Intrestingly it seems we are the first
>> upstream platform to be using some of the uhs bindings such as
>> sd-uhs-sdr104.
>>
>> Changes since v4:
>>   - Fixup typo (Pete)
>>
>> Changes since v3:
>>   - Rebased on Ulf's mmc next branch (rc5 based) (Ulf)
>>
>> Changes since v2:
>>   - Some whitespace fixups (Max)
>>   - if (!ioaddr) suggestion (Max)
>>   - Add stih418-b2199 suport (Max)
>>   - Stih410 to STiH410 fixes (Max)
>>   - rebased on v4.0-rc6 (Pete)
>>
>> Changes since v1:
>>   - Partition the changes into smaller patches to aid review process (Ulf)
>>
>> Peter Griffin (9):
>>    mmc: sdhci-st: Add macros for register offsets and bitfields for mmcss
>>      glue regs
>>    mmc: sdhci-st: Add support for de-asserting reset signal and top regs
>>      resource
>>    mmc: sdhci-st: Add delay management functions for top registers
>>      (eMMC).
>>    mmc: sdhci-st: Add st_mmcss_cconfig function to configure mmcss glue
>>      registers.
>>    mmc: sdhci-st: Add sdhci_st_set_uhs_signaling function.
>>    mmc: sdhci-st: Update the quirks for this controller.
>>    mmc: sdhci-st: Update ST SDHCI binding documentation.
>>    ARM: STi: DT: STiH407: Add dt nodes for sdhci and emmc.
>>    ARM: STi: DT: STiH418: Add dt nodes for sdhci and emmc.
>>
>>   Documentation/devicetree/bindings/mmc/sdhci-st.txt | 100 +++++-
>>   arch/arm/boot/dts/stih407-family.dtsi              |  30 ++
>>   arch/arm/boot/dts/stih410-b2120.dts                |  10 +
>>   arch/arm/boot/dts/stih418-b2199.dts                |  12 +
>>   arch/arm/boot/dts/stihxxx-b2120.dtsi               |   8 +
>>   drivers/mmc/host/sdhci-st.c                        | 354 ++++++++++++++++++++-
>>   6 files changed, 500 insertions(+), 14 deletions(-)
>>
>> --
>> 1.9.1
>>
> Thanks! Applied.
Do you confirm you didn't applied the DT patches?

Thanks,
Maxime

>
> Kind regards
> Uffe

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