MIPS: lantiq: verbose init of dma core

Print the hardware revision and port/channel info when starting the dma core.

Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4520

1 files changed, 8 insertions, 1 deletions

diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index 55d2c4fa4714..b5d76d1444c9 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
@@ -214,6 +215,7 @@ 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;
 }