From: Wolfram Sang <wsa@the-dreams.de>
To: linux-mmc@vger.kernel.org
Cc: Wolfram Sang <wsa@the-dreams.de>,
linux-renesas-soc@vger.kernel.org,
Ben Hutchings <ben.hutchings@codethink.co.uk>
Subject: [PATCH v2 0/9] r8a7790: add UHS-I (SDR50) support to Lager
Date: Fri, 1 Apr 2016 17:44:30 +0200 [thread overview]
Message-ID: <1459525479-20842-1-git-send-email-wsa@the-dreams.de> (raw)
So, here is v2 of the series adding SDR50 support to the Renesas Lager board.
Change since v1:
* rebased to renesas-drivers based on v4.6-rc1
* dropped pinctrl patch which was already picked up
* directly populate start_signal_voltage_switch() in mmc_ops
instead of using a wrapper function
* use generic DT pinctrl bindings instead of vendor specific ones
(e.g. "groups" instead of "renesas,groups")
The RFC series worked fine with my Transcend card, but failed to switch
voltages on a SanDisk and Samsung card. This bug hunting resulted in patches
4-6 newly added: The clock really has to be disabled on ios->clock == 0,
setting frequency to 0Hz doesn't work. I wonder if this isn't true for some
more controllers? Is this known already?
My "copy-large-files-around"-setup showed now 30MB/s while it had 19MB/s
without SDR50. Frankly, I hoped for a little more, but let's start with this
initial support and do the tuning incrementally I'd say.
Patches 1-7 should go via Ulf. After those patches went in, Simon can take 8+9
to tie it all together.
Please comment, test, apply...
Thanks,
Wolfram
Ben Hutchings (3):
mmc: tmio, sh_mobile_sdhi: Pass tmio_mmc_host ptr to
clk_{enable,disable} ops
mmc: tmio, sh_mobile_sdhi: Add support for variable input clock
frequency
ARM: shmobile: r8a7790: Set maximum frequencies for SDHI clocks
Wolfram Sang (6):
mmc: tmio: Add UHS-I mode support
mmc: tmio: always start clock after frequency calculation
mmc: tmio: stop clock when 0Hz is requested
mmc: host: add note that set_ios needs to handle 0Hz properly
mmc: sh_mobile_sdhi: Add UHS-I mode support
ARM: shmobile: r8a7790: lager: Enable UHS-I SDR-50
Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 3 +
arch/arm/boot/dts/r8a7790-lager.dts | 22 +++-
arch/arm/boot/dts/r8a7790.dtsi | 4 +
drivers/mmc/host/sh_mobile_sdhi.c | 116 +++++++++++++++++++--
drivers/mmc/host/tmio_mmc.h | 8 +-
drivers/mmc/host/tmio_mmc_pio.c | 102 +++++++++---------
include/linux/mmc/host.h | 31 ++++--
include/linux/mmc/tmio.h | 2 +
8 files changed, 218 insertions(+), 70 deletions(-)
--
2.7.0
next reply other threads:[~2016-04-01 15:44 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-01 15:44 Wolfram Sang [this message]
2016-04-01 15:44 ` [PATCH v2 1/9] mmc: tmio, sh_mobile_sdhi: Pass tmio_mmc_host ptr to clk_{enable,disable} ops Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 2/9] mmc: tmio, sh_mobile_sdhi: Add support for variable input clock frequency Wolfram Sang
2016-04-12 12:55 ` Geert Uytterhoeven
2016-04-12 16:19 ` Ben Hutchings
2016-04-15 20:28 ` Wolfram Sang
2016-04-15 20:41 ` Wolfram Sang
2016-04-17 12:49 ` Wolfram Sang
2016-04-18 7:33 ` Geert Uytterhoeven
2016-04-26 10:18 ` Geert Uytterhoeven
2016-04-26 17:00 ` Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 3/9] mmc: tmio: Add UHS-I mode support Wolfram Sang
2016-08-16 18:05 ` Geert Uytterhoeven
2016-08-16 19:55 ` Wolfram Sang
2016-08-16 20:21 ` Geert Uytterhoeven
2016-08-17 19:08 ` Wolfram Sang
2016-08-17 20:17 ` Geert Uytterhoeven
2016-08-18 18:41 ` Wolfram Sang
2016-08-23 12:34 ` Geert Uytterhoeven
2016-04-01 15:44 ` [PATCH v2 4/9] mmc: tmio: always start clock after frequency calculation Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 5/9] mmc: tmio: stop clock when 0Hz is requested Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 6/9] mmc: host: add note that set_ios needs to handle 0Hz properly Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 7/9] mmc: sh_mobile_sdhi: Add UHS-I mode support Wolfram Sang
2016-04-04 15:04 ` Ulf Hansson
2016-04-04 15:17 ` Wolfram Sang
2016-04-04 15:52 ` Ulf Hansson
2016-04-04 15:56 ` Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 8/9] ARM: shmobile: r8a7790: Set maximum frequencies for SDHI clocks Wolfram Sang
2016-04-01 15:44 ` [PATCH v2 9/9] ARM: shmobile: r8a7790: lager: Enable UHS-I SDR-50 Wolfram Sang
2016-04-06 0:56 ` [v2,9/9] " Simon Horman
2016-04-06 6:38 ` Geert Uytterhoeven
2016-04-06 7:13 ` Simon Horman
2016-04-04 15:08 ` [PATCH v2 0/9] r8a7790: add UHS-I (SDR50) support to Lager Ulf Hansson
2016-04-04 15:21 ` Wolfram Sang
2016-04-05 11:12 ` Ulf Hansson
2016-04-05 11:19 ` Wolfram Sang
2016-04-06 0:56 ` Simon Horman
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