mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
6f070e1867
This moves the last piece from the old spi_flash driver to the new SPI framework -- optional DMA RX support. This typically cuts speeds by ~40% at the cost of additional ~300 bytes. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/*
|
|
* 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 <asm/mach-common/bits/dma.h>
|
|
|
|
struct dmasg_large {
|
|
void *next_desc_addr;
|
|
unsigned long start_addr;
|
|
unsigned short cfg;
|
|
unsigned short x_count;
|
|
short x_modify;
|
|
unsigned short y_count;
|
|
short y_modify;
|
|
} __attribute__((packed));
|
|
|
|
struct dmasg {
|
|
unsigned long start_addr;
|
|
unsigned short cfg;
|
|
unsigned short x_count;
|
|
short x_modify;
|
|
unsigned short y_count;
|
|
short y_modify;
|
|
} __attribute__((packed));
|
|
|
|
struct dma_register {
|
|
void *next_desc_ptr; /* DMA Next Descriptor Pointer register */
|
|
unsigned long start_addr; /* DMA Start address register */
|
|
|
|
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
|