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Diffstat (limited to 'include/linux/spi/pxa2xx_spi.h')
-rw-r--r--include/linux/spi/pxa2xx_spi.h108
1 files changed, 10 insertions, 98 deletions
diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h
index c73d1445c77e..82d5111cd0c2 100644
--- a/include/linux/spi/pxa2xx_spi.h
+++ b/include/linux/spi/pxa2xx_spi.h
@@ -28,6 +28,15 @@ struct pxa2xx_spi_master {
u32 clock_enable;
u16 num_chipselect;
u8 enable_dma;
+
+ /* DMA engine specific config */
+ int rx_chan_id;
+ int tx_chan_id;
+ int rx_slave_id;
+ int tx_slave_id;
+
+ /* For non-PXA arches */
+ struct ssp_device ssp;
};
/* spi_board_info.controller_data for SPI slave devices,
@@ -35,6 +44,7 @@ struct pxa2xx_spi_master {
*/
struct pxa2xx_spi_chip {
u8 tx_threshold;
+ u8 tx_hi_threshold;
u8 rx_threshold;
u8 dma_burst_size;
u32 timeout;
@@ -50,103 +60,5 @@ struct pxa2xx_spi_chip {
extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info);
-#else
-/*
- * This is the implemtation for CE4100 on x86. ARM defines them in mach/ or
- * plat/ include path.
- * The CE4100 does not provide DMA support. This bits are here to let the driver
- * compile and will never be used. Maybe we get DMA support at a later point in
- * time.
- */
-
-#define DCSR(n) (n)
-#define DSADR(n) (n)
-#define DTADR(n) (n)
-#define DCMD(n) (n)
-#define DRCMR(n) (n)
-
-#define DCSR_RUN (1 << 31) /* Run Bit */
-#define DCSR_NODESC (1 << 30) /* No-Descriptor Fetch */
-#define DCSR_STOPIRQEN (1 << 29) /* Stop Interrupt Enable */
-#define DCSR_REQPEND (1 << 8) /* Request Pending (read-only) */
-#define DCSR_STOPSTATE (1 << 3) /* Stop State (read-only) */
-#define DCSR_ENDINTR (1 << 2) /* End Interrupt */
-#define DCSR_STARTINTR (1 << 1) /* Start Interrupt */
-#define DCSR_BUSERR (1 << 0) /* Bus Error Interrupt */
-
-#define DCSR_EORIRQEN (1 << 28) /* End of Receive Interrupt Enable */
-#define DCSR_EORJMPEN (1 << 27) /* Jump to next descriptor on EOR */
-#define DCSR_EORSTOPEN (1 << 26) /* STOP on an EOR */
-#define DCSR_SETCMPST (1 << 25) /* Set Descriptor Compare Status */
-#define DCSR_CLRCMPST (1 << 24) /* Clear Descriptor Compare Status */
-#define DCSR_CMPST (1 << 10) /* The Descriptor Compare Status */
-#define DCSR_EORINTR (1 << 9) /* The end of Receive */
-
-#define DRCMR_MAPVLD (1 << 7) /* Map Valid */
-#define DRCMR_CHLNUM 0x1f /* mask for Channel Number */
-
-#define DDADR_DESCADDR 0xfffffff0 /* Address of next descriptor */
-#define DDADR_STOP (1 << 0) /* Stop */
-
-#define DCMD_INCSRCADDR (1 << 31) /* Source Address Increment Setting. */
-#define DCMD_INCTRGADDR (1 << 30) /* Target Address Increment Setting. */
-#define DCMD_FLOWSRC (1 << 29) /* Flow Control by the source. */
-#define DCMD_FLOWTRG (1 << 28) /* Flow Control by the target. */
-#define DCMD_STARTIRQEN (1 << 22) /* Start Interrupt Enable */
-#define DCMD_ENDIRQEN (1 << 21) /* End Interrupt Enable */
-#define DCMD_ENDIAN (1 << 18) /* Device Endian-ness. */
-#define DCMD_BURST8 (1 << 16) /* 8 byte burst */
-#define DCMD_BURST16 (2 << 16) /* 16 byte burst */
-#define DCMD_BURST32 (3 << 16) /* 32 byte burst */
-#define DCMD_WIDTH1 (1 << 14) /* 1 byte width */
-#define DCMD_WIDTH2 (2 << 14) /* 2 byte width (HalfWord) */
-#define DCMD_WIDTH4 (3 << 14) /* 4 byte width (Word) */
-#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
-
-/*
- * Descriptor structure for PXA's DMA engine
- * Note: this structure must always be aligned to a 16-byte boundary.
- */
-
-typedef enum {
- DMA_PRIO_HIGH = 0,
- DMA_PRIO_MEDIUM = 1,
- DMA_PRIO_LOW = 2
-} pxa_dma_prio;
-
-/*
- * DMA registration
- */
-
-static inline int pxa_request_dma(char *name,
- pxa_dma_prio prio,
- void (*irq_handler)(int, void *),
- void *data)
-{
- return -ENODEV;
-}
-
-static inline void pxa_free_dma(int dma_ch)
-{
-}
-
-/*
- * The CE4100 does not have the clk framework implemented and SPI clock can
- * not be switched on/off or the divider changed.
- */
-static inline void clk_disable(struct clk *clk)
-{
-}
-
-static inline int clk_enable(struct clk *clk)
-{
- return 0;
-}
-
-static inline unsigned long clk_get_rate(struct clk *clk)
-{
- return 3686400;
-}
-
#endif
#endif