From: Eric Anholt <eric@anholt.net>
To: linux-rpi-kernel@lists.infradead.org
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 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC
Date: Thu, 31 Mar 2016 17:30:40 -0700 [thread overview]
Message-ID: <1459470643-9070-1-git-send-email-eric@anholt.net> (raw)
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/bcm2835_defconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 1ef69fc..1617fd2 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -87,7 +87,7 @@ CONFIG_USB_DWC2=y
CONFIG_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
-CONFIG_MMC_SDHCI_BCM2835=y
+CONFIG_MMC_SDHCI_IPROC=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
--
2.7.0
next reply other threads:[~2016-04-01 0:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-01 0:30 Eric Anholt [this message]
2016-04-01 0:30 ` [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM Eric Anholt
2016-04-01 2:05 ` Stephen Warren
2016-04-01 0:30 ` [PATCH 3/4] ARM: bcm2835: Enable the VC4 graphics driver in the defconfig Eric Anholt
2016-04-01 2:03 ` Stephen Warren
2016-04-01 0:30 ` [PATCH 4/4] ARM: bcm2835: Enable NFS root support Eric Anholt
2016-04-01 16:58 ` [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC Stephen Warren
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