linux-kernel - [PATCH v3 4/7] arm: set CONFIG_MMC_BCM2835=y in bcm2835_defconfig and multi_v7

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Message-Id: <1487668026-7100-5-git-send-email-kraxel@redhat.com>
Date:   Tue, 21 Feb 2017 10:07:03 +0100
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     linux-rpi-kernel@...ts.infradead.org
Cc:     ulf.hansson@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        f.fainelli@...il.com, rjui@...adcom.com, sbranden@...adcom.com,
        bcm-kernel-feedback-list@...adcom.com, swarren@...dotorg.org,
        lee@...nel.org, eric@...olt.net, linux@...linux.org.uk,
        catalin.marinas@....com, will.deacon@....com,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Stefan Wahren <stefan.wahren@...e.com>,
        Gerd Hoffmann <kraxel@...hat.com>
Subject: [PATCH v3 4/7] arm: set CONFIG_MMC_BCM2835=y in bcm2835_defconfig and multi_v7_defconfig

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@...hat.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