Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1585147

[PATCH v3 4/7] arm: set CONFIG_MMC_BCM2835=y in bcm2835_defconfig and multi_v7_defconfig

From Gerd Hoffmann <kraxel@redhat.com>
Newsgroups linux.kernel
Subject [PATCH v3 4/7] arm: set CONFIG_MMC_BCM2835=y in bcm2835_defconfig and multi_v7_defconfig
Date 2017-02-21 10:10 +0100
Message-ID <tdeCn-t4-53@gated-at.bofh.it> (permalink)
References <tdeCl-t4-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


We need to enable this controller so that we can switch the SD card's
pinmux over to it by default, which will improve storage performance.

Read access (dd with 64k blocks on rpi2):
  CONFIG_MMC_SDHCI_IPROC: 11-12 MB/s
  CONFIG_MMC_BCM2835:     19-20 MB/s

Differences on write access are pretty much in the noise.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 arch/arm/configs/bcm2835_defconfig  | 1 +
 arch/arm/configs/multi_v7_defconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 4b89f4e..3767c24 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -92,6 +92,7 @@ CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_IPROC=y
+CONFIG_MMC_BCM2835=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_GPIO=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 028d2b7..5d13894 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -727,6 +727,7 @@ CONFIG_MMC_DW_EXYNOS=y
 CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_MMC_SH_MMCIF=y
 CONFIG_MMC_SUNXI=y
+CONFIG_MMC_BCM2835=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_CLASS_FLASH=m
-- 
1.8.3.1

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[PATCH v3 4/7] arm: set CONFIG_MMC_BCM2835=y in bcm2835_defconfig and multi_v7_defconfig Gerd Hoffmann <kraxel@redhat.com> - 2017-02-21 10:10 +0100

csiph-web