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Groups > linux.kernel > #1594978

[PATCH v4 5/7] arm64: set CONFIG_MMC_BCM2835=y in defconfig

From Gerd Hoffmann <kraxel@redhat.com>
Newsgroups linux.kernel
Subject [PATCH v4 5/7] arm64: set CONFIG_MMC_BCM2835=y in defconfig
Date 2017-03-08 10:30 +0100
Message-ID <tiG4X-4sw-43@gated-at.bofh.it> (permalink)
References <tiG4W-4sw-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 7c48028..519a55c 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -398,6 +398,7 @@ CONFIG_MMC_DW_EXYNOS=y
 CONFIG_MMC_DW_K3=y
 CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_MMC_SUNXI=y
+CONFIG_MMC_BCM2835=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_GPIO=y
-- 
1.8.3.1

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Thread

[PATCH v4 0/7] mmc: bcm2835: Add new driver for the sdhost controller Gerd Hoffmann <kraxel@redhat.com> - 2017-03-08 10:30 +0100
  [PATCH v4 5/7] arm64: set CONFIG_MMC_BCM2835=y in defconfig Gerd Hoffmann <kraxel@redhat.com> - 2017-03-08 10:30 +0100
  [PATCH v4 3/7] mmc: bcm2835: add sdhost controller to devicetree Gerd Hoffmann <kraxel@redhat.com> - 2017-03-08 10:30 +0100
    Re: [PATCH v4 3/7] mmc: bcm2835: add sdhost controller to devicetree Stefan Wahren <stefan.wahren@i2se.com> - 2017-03-08 13:20 +0100
  Re: [PATCH v4 0/7] mmc: bcm2835: Add new driver for the sdhost  controller Gerd Hoffmann <kraxel@redhat.com> - 2017-03-08 10:40 +0100

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