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Diffstat (limited to 'include/asm-powerpc/dbdma.h')
-rw-r--r--include/asm-powerpc/dbdma.h108
1 files changed, 0 insertions, 108 deletions
diff --git a/include/asm-powerpc/dbdma.h b/include/asm-powerpc/dbdma.h
deleted file mode 100644
index e23f07e73cb..00000000000
--- a/include/asm-powerpc/dbdma.h
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Definitions for using the Apple Descriptor-Based DMA controller
- * in Power Macintosh computers.
- *
- * Copyright (C) 1996 Paul Mackerras.
- */
-
-#ifdef __KERNEL__
-#ifndef _ASM_DBDMA_H_
-#define _ASM_DBDMA_H_
-/*
- * DBDMA control/status registers. All little-endian.
- */
-struct dbdma_regs {
- unsigned int control; /* lets you change bits in status */
- unsigned int status; /* DMA and device status bits (see below) */
- unsigned int cmdptr_hi; /* upper 32 bits of command address */
- unsigned int cmdptr; /* (lower 32 bits of) command address (phys) */
- unsigned int intr_sel; /* select interrupt condition bit */
- unsigned int br_sel; /* select branch condition bit */
- unsigned int wait_sel; /* select wait condition bit */
- unsigned int xfer_mode;
- unsigned int data2ptr_hi;
- unsigned int data2ptr;
- unsigned int res1;
- unsigned int address_hi;
- unsigned int br_addr_hi;
- unsigned int res2[3];
-};
-
-/* Bits in control and status registers */
-#define RUN 0x8000
-#define PAUSE 0x4000
-#define FLUSH 0x2000
-#define WAKE 0x1000
-#define DEAD 0x0800
-#define ACTIVE 0x0400
-#define BT 0x0100
-#define DEVSTAT 0x00ff
-
-/*
- * DBDMA command structure. These fields are all little-endian!
- */
-struct dbdma_cmd {
- unsigned short req_count; /* requested byte transfer count */
- unsigned short command; /* command word (has bit-fields) */
- unsigned int phy_addr; /* physical data address */
- unsigned int cmd_dep; /* command-dependent field */
- unsigned short res_count; /* residual count after completion */
- unsigned short xfer_status; /* transfer status */
-};
-
-/* DBDMA command values in command field */
-#define OUTPUT_MORE 0 /* transfer memory data to stream */
-#define OUTPUT_LAST 0x1000 /* ditto followed by end marker */
-#define INPUT_MORE 0x2000 /* transfer stream data to memory */
-#define INPUT_LAST 0x3000 /* ditto, expect end marker */
-#define STORE_WORD 0x4000 /* write word (4 bytes) to device reg */
-#define LOAD_WORD 0x5000 /* read word (4 bytes) from device reg */
-#define DBDMA_NOP 0x6000 /* do nothing */
-#define DBDMA_STOP 0x7000 /* suspend processing */
-
-/* Key values in command field */
-#define KEY_STREAM0 0 /* usual data stream */
-#define KEY_STREAM1 0x100 /* control/status stream */
-#define KEY_STREAM2 0x200 /* device-dependent stream */
-#define KEY_STREAM3 0x300 /* device-dependent stream */
-#define KEY_REGS 0x500 /* device register space */
-#define KEY_SYSTEM 0x600 /* system memory-mapped space */
-#define KEY_DEVICE 0x700 /* device memory-mapped space */
-
-/* Interrupt control values in command field */
-#define INTR_NEVER 0 /* don't interrupt */
-#define INTR_IFSET 0x10 /* intr if condition bit is 1 */
-#define INTR_IFCLR 0x20 /* intr if condition bit is 0 */
-#define INTR_ALWAYS 0x30 /* always interrupt */
-
-/* Branch control values in command field */
-#define BR_NEVER 0 /* don't branch */
-#define BR_IFSET 0x4 /* branch if condition bit is 1 */
-#define BR_IFCLR 0x8 /* branch if condition bit is 0 */
-#define BR_ALWAYS 0xc /* always branch */
-
-/* Wait control values in command field */
-#define WAIT_NEVER 0 /* don't wait */
-#define WAIT_IFSET 1 /* wait if condition bit is 1 */
-#define WAIT_IFCLR 2 /* wait if condition bit is 0 */
-#define WAIT_ALWAYS 3 /* always wait */
-
-/* Align an address for a DBDMA command structure */
-#define DBDMA_ALIGN(x) (((unsigned long)(x) + sizeof(struct dbdma_cmd) - 1) \
- & -sizeof(struct dbdma_cmd))
-
-/* Useful macros */
-#define DBDMA_DO_STOP(regs) do { \
- out_le32(&((regs)->control), (RUN|FLUSH)<<16); \
- while(in_le32(&((regs)->status)) & (ACTIVE|FLUSH)) \
- ; \
-} while(0)
-
-#define DBDMA_DO_RESET(regs) do { \
- out_le32(&((regs)->control), (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);\
- while(in_le32(&((regs)->status)) & (RUN)) \
- ; \
-} while(0)
-
-#endif /* _ASM_DBDMA_H_ */
-#endif /* __KERNEL__ */