brcm2708: update against latest rpi-3.10.y branch

[15.05/openwrt.git] / target / linux / brcm2708 / patches-3.10 / 0011-sdhci-bcm2708-speed-up-DMA-sync.patch

diff --git a/target/linux/brcm2708/patches-3.10/0011-sdhci-bcm2708-speed-up-DMA-sync.patch b/target/linux/brcm2708/patches-3.10/0011-sdhci-bcm2708-speed-up-DMA-sync.patch
new file mode 100644 (file)
index 0000000..5087146
--- /dev/null
+++ b/target/linux/brcm2708/patches-3.10/0011-sdhci-bcm2708-speed-up-DMA-sync.patch
@@ -0,0 +1,22 @@
+From e38d3d05747f6877a2ad1a7af1ac26e6a48a8be3 Mon Sep 17 00:00:00 2001
+From: Grigori Goronzy <greg@blackbox>
+Date: Mon, 4 Jun 2012 04:27:48 +0200
+Subject: [PATCH 011/174] sdhci-bcm2708: speed up DMA sync
+
+Experiments show that it doesn't really take that long to sync, so we
+can reduce the poll interval slightly. Might improve performance a bit.
+---
+ drivers/mmc/host/sdhci-bcm2708.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mmc/host/sdhci-bcm2708.c
++++ b/drivers/mmc/host/sdhci-bcm2708.c
+@@ -897,7 +897,7 @@ static void sdhci_bcm2708_dma_complete_i
+               while (0 != (sdhci_bcm2708_raw_readl(host, SDHCI_PRESENT_STATE) 
+                       & state_mask) && --timeout > 0)
+               {
+-                      udelay(100);
++                      udelay(30);
+                       continue;
+               }
+               if (timeout <= 0)