diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0141-BCM270X_DT-Disable-DMA-for-bcm2835-sdhost-on-Pi2.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0141-BCM270X_DT-Disable-DMA-for-bcm2835-sdhost-on-Pi2.patch | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0141-BCM270X_DT-Disable-DMA-for-bcm2835-sdhost-on-Pi2.patch b/target/linux/brcm2708/patches-4.4/0141-BCM270X_DT-Disable-DMA-for-bcm2835-sdhost-on-Pi2.patch deleted file mode 100644 index b06b4786ce..0000000000 --- a/target/linux/brcm2708/patches-4.4/0141-BCM270X_DT-Disable-DMA-for-bcm2835-sdhost-on-Pi2.patch +++ /dev/null @@ -1,28 +0,0 @@ -From 6dcfc3daab7c1c459b36261163b4e1dc15a6e965 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Wed, 3 Feb 2016 16:12:54 +0000 -Subject: [PATCH 141/170] BCM270X_DT: Disable DMA for bcm2835-sdhost on Pi2 - -This is an interim patch to verify that problems seen with -some cards can be worked around at the expense of an increased -CPU load by forcing PIO mode. - -Although this could have used the brcm,force-pio attribute, that -is a boolean (true if present, false if absent) and attributes -can't be deleted by overlays. Instead, make brcm,pio-limit -unfeasibly high instead to allow DMA to be re-enabled using the -pio_limit parameter of the sdhost or sdtweak overlays. ---- - arch/arm/boot/dts/bcm2709-rpi-2-b.dts | 1 + - 1 file changed, 1 insertion(+) - ---- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts -+++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts -@@ -43,6 +43,7 @@ - pinctrl-names = "default"; - pinctrl-0 = <&sdhost_pins>; - bus-width = <4>; -+ brcm,pio-limit = <0x7fffffff>; - status = "okay"; - }; - |