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

diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index 55d2c4fa47140d555d762fadb74b982b7a2f89fd..b5d76d1444c98877c8dcbc9f6563a7b7c35e5d83 100644 (file)
--- 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;
 }