diff options
| -rw-r--r-- | drivers/net/davinci_cpdma.c | 11 | ||||
| -rw-r--r-- | drivers/net/davinci_cpdma.h | 1 | ||||
| -rw-r--r-- | drivers/net/davinci_emac.c | 5 | ||||
| -rw-r--r-- | include/linux/davinci_emac.h | 1 |
4 files changed, 14 insertions, 4 deletions
diff --git a/drivers/net/davinci_cpdma.c b/drivers/net/davinci_cpdma.c index e92b2b6cd8c4..ae47f23ba930 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) { diff --git a/drivers/net/davinci_cpdma.h b/drivers/net/davinci_cpdma.h index 868e50ebde45..afa19a0c0d81 100644 --- a/drivers/net/davinci_cpdma.h +++ b/drivers/net/davinci_cpdma.h @@ -33,6 +33,7 @@ struct cpdma_params { bool has_soft_reset; int min_packet_size; u32 desc_mem_phys; + u32 desc_hw_addr; int desc_mem_size; int desc_align; diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 082d6ea69920..baca6bfcb089 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -1854,10 +1854,13 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev) dma_params.rxcp = priv->emac_base + 0x660; dma_params.num_chan = EMAC_MAX_TXRX_CHANNELS; dma_params.min_packet_size = EMAC_DEF_MIN_ETHPKTSIZE; - dma_params.desc_mem_phys = hw_ram_addr; + dma_params.desc_hw_addr = hw_ram_addr; dma_params.desc_mem_size = pdata->ctrl_ram_size; dma_params.desc_align = 16; + dma_params.desc_mem_phys = pdata->no_bd_ram ? 0 : + (u32 __force)res->start + pdata->ctrl_ram_offset; + priv->dma = cpdma_ctlr_create(&dma_params); if (!priv->dma) { dev_err(emac_dev, "DaVinci EMAC: Error initializing DMA\n"); diff --git a/include/linux/davinci_emac.h b/include/linux/davinci_emac.h index 5dd428532f79..542888504994 100644 --- a/include/linux/davinci_emac.h +++ b/include/linux/davinci_emac.h @@ -36,6 +36,7 @@ struct emac_platform_data { u8 rmii_en; u8 version; + bool no_bd_ram; void (*interrupt_enable) (void); void (*interrupt_disable) (void); }; |
