diff options
Diffstat (limited to 'drivers/dma/dw/regs.h')
-rw-r--r-- | drivers/dma/dw/regs.h | 50 |
1 files changed, 11 insertions, 39 deletions
diff --git a/drivers/dma/dw/regs.h b/drivers/dma/dw/regs.h index 32a328721c88..09e7dfdbb790 100644 --- a/drivers/dma/dw/regs.h +++ b/drivers/dma/dw/regs.h @@ -116,20 +116,6 @@ struct dw_dma_regs { DW_REG(GLOBAL_CFG); }; -/* - * Big endian I/O access when reading and writing to the DMA controller - * registers. This is needed on some platforms, like the Atmel AVR32 - * architecture. - */ - -#ifdef CONFIG_DW_DMAC_BIG_ENDIAN_IO -#define dma_readl_native ioread32be -#define dma_writel_native iowrite32be -#else -#define dma_readl_native readl -#define dma_writel_native writel -#endif - /* Bitfields in DW_PARAMS */ #define DW_PARAMS_NR_CHAN 8 /* number of channels */ #define DW_PARAMS_NR_MASTER 11 /* number of AHB masters */ @@ -280,7 +266,6 @@ struct dw_dma_chan { unsigned long flags; struct list_head active_list; struct list_head queue; - struct dw_cyclic_desc *cdesc; unsigned int descs_allocated; @@ -302,9 +287,9 @@ __dwc_regs(struct dw_dma_chan *dwc) } #define channel_readl(dwc, name) \ - dma_readl_native(&(__dwc_regs(dwc)->name)) + readl(&(__dwc_regs(dwc)->name)) #define channel_writel(dwc, name, val) \ - dma_writel_native((val), &(__dwc_regs(dwc)->name)) + writel((val), &(__dwc_regs(dwc)->name)) static inline struct dw_dma_chan *to_dw_dma_chan(struct dma_chan *chan) { @@ -333,9 +318,9 @@ static inline struct dw_dma_regs __iomem *__dw_regs(struct dw_dma *dw) } #define dma_readl(dw, name) \ - dma_readl_native(&(__dw_regs(dw)->name)) + readl(&(__dw_regs(dw)->name)) #define dma_writel(dw, name, val) \ - dma_writel_native((val), &(__dw_regs(dw)->name)) + writel((val), &(__dw_regs(dw)->name)) #define idma32_readq(dw, name) \ hi_lo_readq(&(__dw_regs(dw)->name)) @@ -352,43 +337,30 @@ static inline struct dw_dma *to_dw_dma(struct dma_device *ddev) return container_of(ddev, struct dw_dma, dma); } -#ifdef CONFIG_DW_DMAC_BIG_ENDIAN_IO -typedef __be32 __dw32; -#else -typedef __le32 __dw32; -#endif - /* LLI == Linked List Item; a.k.a. DMA block descriptor */ struct dw_lli { /* values that are not changed by hardware */ - __dw32 sar; - __dw32 dar; - __dw32 llp; /* chain to next lli */ - __dw32 ctllo; + __le32 sar; + __le32 dar; + __le32 llp; /* chain to next lli */ + __le32 ctllo; /* values that may get written back: */ - __dw32 ctlhi; + __le32 ctlhi; /* sstat and dstat can snapshot peripheral register state. * silicon config may discard either or both... */ - __dw32 sstat; - __dw32 dstat; + __le32 sstat; + __le32 dstat; }; struct dw_desc { /* FIRST values the hardware uses */ struct dw_lli lli; -#ifdef CONFIG_DW_DMAC_BIG_ENDIAN_IO -#define lli_set(d, reg, v) ((d)->lli.reg |= cpu_to_be32(v)) -#define lli_clear(d, reg, v) ((d)->lli.reg &= ~cpu_to_be32(v)) -#define lli_read(d, reg) be32_to_cpu((d)->lli.reg) -#define lli_write(d, reg, v) ((d)->lli.reg = cpu_to_be32(v)) -#else #define lli_set(d, reg, v) ((d)->lli.reg |= cpu_to_le32(v)) #define lli_clear(d, reg, v) ((d)->lli.reg &= ~cpu_to_le32(v)) #define lli_read(d, reg) le32_to_cpu((d)->lli.reg) #define lli_write(d, reg, v) ((d)->lli.reg = cpu_to_le32(v)) -#endif /* THEN values for driver housekeeping */ struct list_head desc_node; |