Commit c12aa581 authored by Aleksander Jan Bajkowski's avatar Aleksander Jan Bajkowski Committed by David S. Miller

MIPS: lantiq: dma: add small delay after reset

Reading the DMA registers immediately after the reset causes
Data Bus Error. Adding a small delay fixes this issue.
Signed-off-by: default avatarAleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 339133f6
......@@ -11,6 +11,7 @@
#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/of.h>
......@@ -222,6 +223,8 @@ ltq_dma_init(struct platform_device *pdev)
clk_enable(clk);
ltq_dma_w32_mask(0, DMA_RESET, LTQ_DMA_CTRL);
usleep_range(1, 10);
/* disable all interrupts */
ltq_dma_w32(0, LTQ_DMA_IRNEN);
......
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