summaryrefslogtreecommitdiffstats
path: root/arch/mips/lantiq/xway/dma.c
diff options
context:
space:
mode:
authorJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
committerJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
commit617677295b53a40d0e54aac4cbbc216ffbc755dd (patch)
tree51b9e87213243ed5efff252c8e8d8fec4eebc588 /arch/mips/lantiq/xway/dma.c
parent5c8d1b68e01a144813e38795fe6dbe7ebb506131 (diff)
parent6abb7c25775b7fb2225ad0508236d63ca710e65f (diff)
downloadtalos-obmc-linux-617677295b53a40d0e54aac4cbbc216ffbc755dd.tar.gz
talos-obmc-linux-617677295b53a40d0e54aac4cbbc216ffbc755dd.zip
Merge branch 'master' into for-next
Conflicts: drivers/devfreq/exynos4_bus.c Sync with Linus' tree to be able to apply patches that are against newer code (mvneta).
Diffstat (limited to 'arch/mips/lantiq/xway/dma.c')
-rw-r--r--arch/mips/lantiq/xway/dma.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index 55d2c4fa4714..e44a1866653f 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -25,6 +25,7 @@
#include <lantiq_soc.h>
#include <xway_dma.h>
+#define LTQ_DMA_ID 0x08
#define LTQ_DMA_CTRL 0x10
#define LTQ_DMA_CPOLL 0x14
#define LTQ_DMA_CS 0x18
@@ -48,7 +49,7 @@
#define DMA_CLK_DIV4 BIT(6) /* polling clock divider */
#define DMA_2W_BURST BIT(1) /* 2 word burst length */
#define DMA_MAX_CHANNEL 20 /* the soc has 20 channels */
-#define DMA_ETOP_ENDIANESS (0xf << 8) /* endianess swap etop channels */
+#define DMA_ETOP_ENDIANNESS (0xf << 8) /* endianness swap etop channels */
#define DMA_WEIGHT (BIT(17) | BIT(16)) /* default channel wheight */
#define ltq_dma_r32(x) ltq_r32(ltq_dma_membase + (x))
@@ -191,10 +192,10 @@ ltq_dma_init_port(int p)
switch (p) {
case DMA_PORT_ETOP:
/*
- * Tell the DMA engine to swap the endianess of data frames and
+ * Tell the DMA engine to swap the endianness of data frames and
* drop packets if the channel arbitration fails.
*/
- ltq_dma_w32_mask(0, DMA_ETOP_ENDIANESS | DMA_PDEN,
+ ltq_dma_w32_mask(0, DMA_ETOP_ENDIANNESS | DMA_PDEN,
LTQ_DMA_PCTRL);
break;
@@ -209,11 +210,12 @@ ltq_dma_init_port(int p)
}
EXPORT_SYMBOL_GPL(ltq_dma_init_port);
-static int __devinit
+static int
ltq_dma_init(struct platform_device *pdev)
{
struct clk *clk;
struct resource *res;
+ unsigned id;
int i;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -243,7 +245,12 @@ ltq_dma_init(struct platform_device *pdev)
ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL);
ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL);
}
- dev_info(&pdev->dev, "init done\n");
+
+ id = ltq_dma_r32(LTQ_DMA_ID);
+ dev_info(&pdev->dev,
+ "Init done - hw rev: %X, ports: %d, channels: %d\n",
+ id & 0x1f, (id >> 16) & 0xf, id >> 20);
+
return 0;
}
OpenPOWER on IntegriCloud