openwrt/target/linux/brcm2708/patches-3.10/0011-sdhci-bcm2708-speed-up-DMA-sync.patch
Florian Fainelli bb39b8d99a brcm2708: update against latest rpi-3.10.y branch
Update our copies of the brcm2708 patches to the latest rpi-3.10-y
rebased against linux-3.10.y stable (3.10.32). This should hopefully
make it easier for us in the future to leverage the raspberry/rpi-*
branches.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 39770
2014-02-28 20:30:08 +00:00

23 lines
761 B
Diff

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)