diff options
Diffstat (limited to 'drivers/net/davinci_cpdma.c')
| -rw-r--r-- | drivers/net/davinci_cpdma.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/davinci_cpdma.c b/drivers/net/davinci_cpdma.c index e92b2b6cd8c..ae47f23ba93 100644 --- a/drivers/net/davinci_cpdma.c +++ b/drivers/net/davinci_cpdma.c @@ -76,6 +76,7 @@ struct cpdma_desc { struct cpdma_desc_pool { u32 phys; + u32 hw_addr; void __iomem *iomap; /* ioremap map */ void *cpumap; /* dma_alloc map */ int desc_size, mem_size; @@ -137,7 +138,8 @@ struct cpdma_chan { * abstract out these details */ static struct cpdma_desc_pool * -cpdma_desc_pool_create(struct device *dev, u32 phys, int size, int align) +cpdma_desc_pool_create(struct device *dev, u32 phys, u32 hw_addr, + int size, int align) { int bitmap_size; struct cpdma_desc_pool *pool; @@ -161,10 +163,12 @@ cpdma_desc_pool_create(struct device *dev, u32 phys, int size, int align) if (phys) { pool->phys = phys; pool->iomap = ioremap(phys, size); + pool->hw_addr = hw_addr; } else { pool->cpumap = dma_alloc_coherent(dev, size, &pool->phys, GFP_KERNEL); pool->iomap = (void __force __iomem *)pool->cpumap; + pool->hw_addr = pool->phys; } if (pool->iomap) @@ -201,14 +205,14 @@ static inline dma_addr_t desc_phys(struct cpdma_desc_pool *pool, { if (!desc) return 0; - return pool->phys + (__force dma_addr_t)desc - + return pool->hw_addr + (__force dma_addr_t)desc - (__force dma_addr_t)pool->iomap; } static inline struct cpdma_desc __iomem * desc_from_phys(struct cpdma_desc_pool *pool, dma_addr_t dma) { - return dma ? pool->iomap + dma - pool->phys : NULL; + return dma ? pool->iomap + dma - pool->hw_addr : NULL; } static struct cpdma_desc __iomem * @@ -260,6 +264,7 @@ struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params) ctlr->pool = cpdma_desc_pool_create(ctlr->dev, ctlr->params.desc_mem_phys, + ctlr->params.desc_hw_addr, ctlr->params.desc_mem_size, ctlr->params.desc_align); if (!ctlr->pool) { |