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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
hifive-unleashed-5.1
John Crispin 2012-11-09 12:16:14 +01:00
parent 15753b6586
commit b8b3acbe60
1 changed files with 8 additions and 1 deletions
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9
arch/mips/lantiq/xway/dma.c
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@ -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;
}