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ARM: multi_v7_defconfig: Switch BCM2835 to sdhci-iproc.c for MMC
authorEric Anholt <eric@anholt.net>
Tue, 29 Mar 2016 02:01:27 +0000 (19:01 -0700)
committerEric Anholt <eric@anholt.net>
Mon, 4 Apr 2016 18:02:54 +0000 (11:02 -0700)
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>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
arch/arm/configs/multi_v7_defconfig patch | blob | blame | history

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 43a8ce0a3019d547dae99bd339bccbbe92a92bde..a913520b1d4456ef4fd913743ed4f713b6f26419 100644 (file)
--- 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