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* [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC
@ 2016-04-01  0:30 ` Eric Anholt
  0 siblings, 0 replies; 14+ messages in thread
From: Eric Anholt @ 2016-04-01  0:30 UTC (permalink / raw)
  To: linux-rpi-kernel
  Cc: linux-arm-kernel, linux-kernel, Stephen Warren, Lee Jones,
	Florian Fainelli, Eric Anholt

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

^ permalink raw reply related	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2016-04-01 16:59 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-04-01  0:30 [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC Eric Anholt
2016-04-01  0:30 ` Eric Anholt
2016-04-01  0:30 ` [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM Eric Anholt
2016-04-01  0:30   ` Eric Anholt
2016-04-01  2:05   ` Stephen Warren
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  0:30   ` Eric Anholt
2016-04-01  2:03   ` Stephen Warren
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  0:30   ` Eric Anholt
2016-04-01 16:58 ` [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC Stephen Warren
2016-04-01 16:58   ` Stephen Warren

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