From b8b3acbe6077b4736f641ec445be8a42cdd1f08b Mon Sep 17 00:00:00 2001 From: John Crispin Date: Fri, 9 Nov 2012 12:16:14 +0100 Subject: [PATCH 3/6] 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 Patchwork: http://patchwork.linux-mips.org/patch/4520 --- arch/mips/lantiq/xway/dma.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -25,6 +25,7 @@ #include #include +#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 *pde { 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 *pde 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; }