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[PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC

Started byEric Anholt <eric@anholt.net>
First post2016-04-01 02:40 +0200
Last post2016-04-01 19:00 +0200
Articles 5 — 2 participants

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Contents

  [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC Eric Anholt <eric@anholt.net> - 2016-04-01 02:40 +0200
    [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM. Eric Anholt <eric@anholt.net> - 2016-04-01 02:40 +0200
      Re: [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM. Stephen Warren <swarren@wwwdotorg.org> - 2016-04-01 04:10 +0200
    [PATCH 4/4] ARM: bcm2835: Enable NFS root support. Eric Anholt <eric@anholt.net> - 2016-04-01 02:40 +0200
    Re: [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC Stephen Warren <swarren@wwwdotorg.org> - 2016-04-01 19:00 +0200

#1368908 — [PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC

FromEric Anholt <eric@anholt.net>
Date2016-04-01 02:40 +0200
Subject[PATCH 1/4] ARM: bcm2835: Switch BCM2835 to sdhci-iproc.c for MMC
Message-ID<riVi2-4Du-5@gated-at.bofh.it>
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

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#1368909 — [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM.

FromEric Anholt <eric@anholt.net>
Date2016-04-01 02:40 +0200
Subject[PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM.
Message-ID<riVi3-4Du-11@gated-at.bofh.it>
In reply to#1368908
The power domain driver we've enabled doesn't actually do anything
without it, and we need it to do its job for VC4 to initialize
successfully.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 arch/arm/configs/bcm2835_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 1617fd2..1192a6f 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -38,6 +38,7 @@ CONFIG_CRASH_DUMP=y
 CONFIG_VFP=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 # CONFIG_SUSPEND is not set
+CONFIG_PM=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
-- 
2.7.0

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#1368951 — Re: [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM.

FromStephen Warren <swarren@wwwdotorg.org>
Date2016-04-01 04:10 +0200
SubjectRe: [PATCH 2/4] ARM: bcm2835: Enable CONFIG_PM.
Message-ID<riWH9-5RD-17@gated-at.bofh.it>
In reply to#1368909
On 03/31/2016 06:30 PM, Eric Anholt wrote:
> The power domain driver we've enabled doesn't actually do anything
> without it, and we need it to do its job for VC4 to initialize
> successfully.

Patches 1, 2, and 3,
Acked-by: Stephen Warren <swarren@wwwdotorg.org>

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#1368910 — [PATCH 4/4] ARM: bcm2835: Enable NFS root support.

FromEric Anholt <eric@anholt.net>
Date2016-04-01 02:40 +0200
Subject[PATCH 4/4] ARM: bcm2835: Enable NFS root support.
Message-ID<riVi3-4Du-15@gated-at.bofh.it>
In reply to#1368908
This is also present in multi_v7_defconfig, and means that I can test
the pi1 with the 2835 defconfig in my normal environment.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 arch/arm/configs/bcm2835_defconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 896500f..79de828 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -43,6 +43,8 @@ CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
 CONFIG_NETWORK_SECMARK=y
 CONFIG_NETFILTER=y
 CONFIG_CFG80211=y
@@ -122,6 +124,7 @@ CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
 # CONFIG_MISC_FILESYSTEMS is not set
 CONFIG_NFS_FS=y
+CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ASCII=y
-- 
2.7.0

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#1369484

FromStephen Warren <swarren@wwwdotorg.org>
Date2016-04-01 19:00 +0200
Message-ID<rjaAr-7em-17@gated-at.bofh.it>
In reply to#1368908
On 03/31/2016 06:30 PM, Eric Anholt wrote:
> 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.

Acked-by: Stephen Warren <swarren@wwwdotorg.org>

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