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-rw-r--r--arch/blackfin/include/asm/dma.h349
1 files changed, 0 insertions, 349 deletions
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
deleted file mode 100644
index 40e9c2bbc6e3..000000000000
--- a/arch/blackfin/include/asm/dma.h
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * dma.h - Blackfin DMA defines/structures/etc...
- *
- * Copyright 2004-2008 Analog Devices Inc.
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef _BLACKFIN_DMA_H_
-#define _BLACKFIN_DMA_H_
-
-#include <linux/interrupt.h>
-#include <mach/dma.h>
-#include <linux/atomic.h>
-#include <asm/blackfin.h>
-#include <asm/page.h>
-#include <asm-generic/dma.h>
-#include <asm/bfin_dma.h>
-
-/*-------------------------
- * config reg bits value
- *-------------------------*/
-#define DATA_SIZE_8 0
-#define DATA_SIZE_16 1
-#define DATA_SIZE_32 2
-#ifdef CONFIG_BF60x
-#define DATA_SIZE_64 3
-#endif
-
-#define DMA_FLOW_STOP 0
-#define DMA_FLOW_AUTO 1
-#ifdef CONFIG_BF60x
-#define DMA_FLOW_LIST 4
-#define DMA_FLOW_ARRAY 5
-#define DMA_FLOW_LIST_DEMAND 6
-#define DMA_FLOW_ARRAY_DEMAND 7
-#else
-#define DMA_FLOW_ARRAY 4
-#define DMA_FLOW_SMALL 6
-#define DMA_FLOW_LARGE 7
-#endif
-
-#define DIMENSION_LINEAR 0
-#define DIMENSION_2D 1
-
-#define DIR_READ 0
-#define DIR_WRITE 1
-
-#define INTR_DISABLE 0
-#ifdef CONFIG_BF60x
-#define INTR_ON_PERI 1
-#endif
-#define INTR_ON_BUF 2
-#define INTR_ON_ROW 3
-
-#define DMA_NOSYNC_KEEP_DMA_BUF 0
-#define DMA_SYNC_RESTART 1
-
-#ifdef DMA_MMR_SIZE_32
-#define DMA_MMR_SIZE_TYPE long
-#define DMA_MMR_READ bfin_read32
-#define DMA_MMR_WRITE bfin_write32
-#else
-#define DMA_MMR_SIZE_TYPE short
-#define DMA_MMR_READ bfin_read16
-#define DMA_MMR_WRITE bfin_write16
-#endif
-
-struct dma_desc_array {
- unsigned long start_addr;
- unsigned DMA_MMR_SIZE_TYPE cfg;
- unsigned DMA_MMR_SIZE_TYPE x_count;
- DMA_MMR_SIZE_TYPE x_modify;
-} __attribute__((packed));
-
-struct dmasg {
- void *next_desc_addr;
- unsigned long start_addr;
- unsigned DMA_MMR_SIZE_TYPE cfg;
- unsigned DMA_MMR_SIZE_TYPE x_count;
- DMA_MMR_SIZE_TYPE x_modify;
- unsigned DMA_MMR_SIZE_TYPE y_count;
- DMA_MMR_SIZE_TYPE y_modify;
-} __attribute__((packed));
-
-struct dma_register {
- void *next_desc_ptr; /* DMA Next Descriptor Pointer register */
- unsigned long start_addr; /* DMA Start address register */
-#ifdef CONFIG_BF60x
- unsigned long cfg; /* DMA Configuration register */
-
- unsigned long x_count; /* DMA x_count register */
-
- long x_modify; /* DMA x_modify register */
-
- unsigned long y_count; /* DMA y_count register */
-
- long y_modify; /* DMA y_modify register */
-
- unsigned long reserved;
- unsigned long reserved2;
-
- void *curr_desc_ptr; /* DMA Current Descriptor Pointer
- register */
- void *prev_desc_ptr; /* DMA previous initial Descriptor Pointer
- register */
- unsigned long curr_addr_ptr; /* DMA Current Address Pointer
- register */
- unsigned long irq_status; /* DMA irq status register */
-
- unsigned long curr_x_count; /* DMA Current x-count register */
-
- unsigned long curr_y_count; /* DMA Current y-count register */
-
- unsigned long reserved3;
-
- unsigned long bw_limit_count; /* DMA band width limit count register */
- unsigned long curr_bw_limit_count; /* DMA Current band width limit
- count register */
- unsigned long bw_monitor_count; /* DMA band width limit count register */
- unsigned long curr_bw_monitor_count; /* DMA Current band width limit
- count register */
-#else
- unsigned short cfg; /* DMA Configuration register */
- unsigned short dummy1; /* DMA Configuration register */
-
- unsigned long reserved;
-
- unsigned short x_count; /* DMA x_count register */
- unsigned short dummy2;
-
- short x_modify; /* DMA x_modify register */
- unsigned short dummy3;
-
- unsigned short y_count; /* DMA y_count register */
- unsigned short dummy4;
-
- short y_modify; /* DMA y_modify register */
- unsigned short dummy5;
-
- void *curr_desc_ptr; /* DMA Current Descriptor Pointer
- register */
- unsigned long curr_addr_ptr; /* DMA Current Address Pointer
- register */
- unsigned short irq_status; /* DMA irq status register */
- unsigned short dummy6;
-
- unsigned short peripheral_map; /* DMA peripheral map register */
- unsigned short dummy7;
-
- unsigned short curr_x_count; /* DMA Current x-count register */
- unsigned short dummy8;
-
- unsigned long reserved2;
-
- unsigned short curr_y_count; /* DMA Current y-count register */
- unsigned short dummy9;
-
- unsigned long reserved3;
-#endif
-
-};
-
-struct dma_channel {
- const char *device_id;
- atomic_t chan_status;
- volatile struct dma_register *regs;
- struct dmasg *sg; /* large mode descriptor */
- unsigned int irq;
- void *data;
-#ifdef CONFIG_PM
- unsigned short saved_peripheral_map;
-#endif
-};
-
-#ifdef CONFIG_PM
-int blackfin_dma_suspend(void);
-void blackfin_dma_resume(void);
-#endif
-
-/*******************************************************************************
-* DMA API's
-*******************************************************************************/
-extern struct dma_channel dma_ch[MAX_DMA_CHANNELS];
-extern struct dma_register * const dma_io_base_addr[MAX_DMA_CHANNELS];
-extern int channel2irq(unsigned int channel);
-
-static inline void set_dma_start_addr(unsigned int channel, unsigned long addr)
-{
- dma_ch[channel].regs->start_addr = addr;
-}
-static inline void set_dma_next_desc_addr(unsigned int channel, void *addr)
-{
- dma_ch[channel].regs->next_desc_ptr = addr;
-}
-static inline void set_dma_curr_desc_addr(unsigned int channel, void *addr)
-{
- dma_ch[channel].regs->curr_desc_ptr = addr;
-}
-static inline void set_dma_x_count(unsigned int channel, unsigned DMA_MMR_SIZE_TYPE x_count)
-{
- dma_ch[channel].regs->x_count = x_count;
-}
-static inline void set_dma_y_count(unsigned int channel, unsigned DMA_MMR_SIZE_TYPE y_count)
-{
- dma_ch[channel].regs->y_count = y_count;
-}
-static inline void set_dma_x_modify(unsigned int channel, DMA_MMR_SIZE_TYPE x_modify)
-{
- dma_ch[channel].regs->x_modify = x_modify;
-}
-static inline void set_dma_y_modify(unsigned int channel, DMA_MMR_SIZE_TYPE y_modify)
-{
- dma_ch[channel].regs->y_modify = y_modify;
-}
-static inline void set_dma_config(unsigned int channel, unsigned DMA_MMR_SIZE_TYPE config)
-{
- dma_ch[channel].regs->cfg = config;
-}
-static inline void set_dma_curr_addr(unsigned int channel, unsigned long addr)
-{
- dma_ch[channel].regs->curr_addr_ptr = addr;
-}
-
-#ifdef CONFIG_BF60x
-static inline unsigned long
-set_bfin_dma_config2(char direction, char flow_mode, char intr_mode,
- char dma_mode, char mem_width, char syncmode, char peri_width)
-{
- unsigned long config = 0;
-
- switch (intr_mode) {
- case INTR_ON_BUF:
- if (dma_mode == DIMENSION_2D)
- config = DI_EN_Y;
- else
- config = DI_EN_X;
- break;
- case INTR_ON_ROW:
- config = DI_EN_X;
- break;
- case INTR_ON_PERI:
- config = DI_EN_P;
- break;
- };
-
- return config | (direction << 1) | (mem_width << 8) | (dma_mode << 26) |
- (flow_mode << 12) | (syncmode << 2) | (peri_width << 4);
-}
-#endif
-
-static inline unsigned DMA_MMR_SIZE_TYPE
-set_bfin_dma_config(char direction, char flow_mode,
- char intr_mode, char dma_mode, char mem_width, char syncmode)
-{
-#ifdef CONFIG_BF60x
- return set_bfin_dma_config2(direction, flow_mode, intr_mode, dma_mode,
- mem_width, syncmode, mem_width);
-#else
- return (direction << 1) | (mem_width << 2) | (dma_mode << 4) |
- (intr_mode << 6) | (flow_mode << 12) | (syncmode << 5);
-#endif
-}
-
-static inline unsigned DMA_MMR_SIZE_TYPE get_dma_curr_irqstat(unsigned int channel)
-{
- return dma_ch[channel].regs->irq_status;
-}
-static inline unsigned DMA_MMR_SIZE_TYPE get_dma_curr_xcount(unsigned int channel)
-{
- return dma_ch[channel].regs->curr_x_count;
-}
-static inline unsigned DMA_MMR_SIZE_TYPE get_dma_curr_ycount(unsigned int channel)
-{
- return dma_ch[channel].regs->curr_y_count;
-}
-static inline void *get_dma_next_desc_ptr(unsigned int channel)
-{
- return dma_ch[channel].regs->next_desc_ptr;
-}
-static inline void *get_dma_curr_desc_ptr(unsigned int channel)
-{
- return dma_ch[channel].regs->curr_desc_ptr;
-}
-static inline unsigned DMA_MMR_SIZE_TYPE get_dma_config(unsigned int channel)
-{
- return dma_ch[channel].regs->cfg;
-}
-static inline unsigned long get_dma_curr_addr(unsigned int channel)
-{
- return dma_ch[channel].regs->curr_addr_ptr;
-}
-
-static inline void set_dma_sg(unsigned int channel, struct dmasg *sg, int ndsize)
-{
- /* Make sure the internal data buffers in the core are drained
- * so that the DMA descriptors are completely written when the
- * DMA engine goes to fetch them below.
- */
- SSYNC();
-
- dma_ch[channel].regs->next_desc_ptr = sg;
- dma_ch[channel].regs->cfg =
- (dma_ch[channel].regs->cfg & ~NDSIZE) |
- ((ndsize << NDSIZE_OFFSET) & NDSIZE);
-}
-
-static inline int dma_channel_active(unsigned int channel)
-{
- return atomic_read(&dma_ch[channel].chan_status);
-}
-
-static inline void disable_dma(unsigned int channel)
-{
- dma_ch[channel].regs->cfg &= ~DMAEN;
- SSYNC();
-}
-static inline void enable_dma(unsigned int channel)
-{
- dma_ch[channel].regs->curr_x_count = 0;
- dma_ch[channel].regs->curr_y_count = 0;
- dma_ch[channel].regs->cfg |= DMAEN;
-}
-int set_dma_callback(unsigned int channel, irq_handler_t callback, void *data);
-
-static inline void dma_disable_irq(unsigned int channel)
-{
- disable_irq(dma_ch[channel].irq);
-}
-static inline void dma_disable_irq_nosync(unsigned int channel)
-{
- disable_irq_nosync(dma_ch[channel].irq);
-}
-static inline void dma_enable_irq(unsigned int channel)
-{
- enable_irq(dma_ch[channel].irq);
-}
-static inline void clear_dma_irqstat(unsigned int channel)
-{
- dma_ch[channel].regs->irq_status = DMA_DONE | DMA_ERR | DMA_PIRQ;
-}
-
-void *dma_memcpy(void *dest, const void *src, size_t count);
-void *dma_memcpy_nocache(void *dest, const void *src, size_t count);
-void *safe_dma_memcpy(void *dest, const void *src, size_t count);
-void blackfin_dma_early_init(void);
-void early_dma_memcpy(void *dest, const void *src, size_t count);
-void early_dma_memcpy_done(void);
-
-#endif
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