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From: Eric Anholt <eric@anholt.net>
To: linux-rpi-kernel@lists.infradead.org,
	Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Stephen Warren <swarren@wwwdotorg.org>,
	Lee Jones <lee@kernel.org>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Eric Anholt <eric@anholt.net>
Subject: [PATCH 2/3] ARM: multi_v7_defconfig: Switch BCM2835 to sdhci-iproc.c for MMC
Date: Thu, 31 Mar 2016 17:28:23 -0700	[thread overview]
Message-ID: <1459470504-5007-2-git-send-email-eric@anholt.net> (raw)
In-Reply-To: <1459470504-5007-1-git-send-email-eric@anholt.net>

This approximately triples write performance for the SD card.  My card
is too full of important data to collect very reliable numbers, but I
see 271.361% +/- 166.742% improvement (n=3 before, 6 after), for 'dd
if=/dev/zero of=/boot/asdf bs=1M count=3 oflag=dsync,direct'.  Read
performance appears to be unaffected.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 arch/arm/configs/multi_v7_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 43a8ce0..a913520 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -642,7 +642,6 @@ CONFIG_MMC_SDHCI_SPEAR=y
 CONFIG_MMC_SDHCI_S3C=y
 CONFIG_MMC_SDHCI_S3C_DMA=y
 CONFIG_MMC_SDHCI_BCM_KONA=y
-CONFIG_MMC_SDHCI_BCM2835=y
 CONFIG_MMC_SDHCI_ST=y
 CONFIG_MMC_OMAP=y
 CONFIG_MMC_OMAP_HS=y
-- 
2.7.0

  reply	other threads:[~2016-04-01  0:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-01  0:28 [PATCH 1/3] ARM: multi_v7_defconfig: Add more BCM2835 support Eric Anholt
2016-04-01  0:28 ` Eric Anholt [this message]
2016-04-01  2:01   ` [PATCH 2/3] ARM: multi_v7_defconfig: Switch BCM2835 to sdhci-iproc.c for MMC Stephen Warren
2016-04-01 15:48     ` Eric Anholt
2016-04-01 16:58     ` Stephen Warren
2016-04-01 20:17       ` Stefan Wahren
2016-04-01  0:28 ` [PATCH 3/3] ARM: multi_v7_defconfig: Build in DWC2 USB support Eric Anholt
2016-04-01  2:04 ` [PATCH 1/3] ARM: multi_v7_defconfig: Add more BCM2835 support Stephen Warren

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