/* * (C) Copyright 2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * This file is based on code * (C) Copyright Motorola, Inc., 2000 * * MPC8220 dma header file */#ifndef __MPC8220_DMA_H#define __MPC8220_DMA_H#include <common.h>#include <mpc8220.h>/* Task number assignment */#define FEC_RECV_TASK_NO            0#define FEC_XMIT_TASK_NO            1/*--------------------------------------------------------------------- * Stuff for Ethernet Tx/Rx tasks *--------------------------------------------------------------------- *//* Layout of Ethernet controller Parameter SRAM area: * ---------------------------------------------------------------- * 0x00: TBD_BASE, base address of TX BD ring * 0x04: TBD_NEXT, address of next TX BD to be processed * 0x08: RBD_BASE, base address of RX BD ring * 0x0C: RBD_NEXT, address of next RX BD to be processed * --------------------------------------------------------------- * ALL PARAMETERS ARE ALL LONGWORDS (FOUR BYTES EACH). *//* base address of SRAM area to store parameters used by Ethernet tasks */#define FEC_PARAM_BASE  (MMAP_SRAM + 0x5b00)/* base address of SRAM area for buffer descriptors */#define FEC_BD_BASE     (MMAP_SRAM + 0x5b20)/*--------------------------------------------------------------------- * common shortcuts  used  by driver C code *--------------------------------------------------------------------- *//* Disable SmartDMA task */#define DMA_TASK_DISABLE(tasknum)						\{										\	volatile ushort *tcr = (ushort *)(MMAP_DMA + 0x0000001c + 2 * tasknum); \	*tcr = (*tcr) & (~0x8000);						\}/* Enable SmartDMA task */#define DMA_TASK_ENABLE(tasknum)						\{										\	volatile ushort *tcr = (ushort *) (MMAP_DMA + 0x0000001c + 2 * tasknum);\	*tcr = (*tcr)  | 0x8000;						\}/* Clear interrupt pending bits */#define DMA_CLEAR_IEVENT(tasknum)						\{										\	struct mpc8220_dma *dma = (struct mpc8220_dma *)MMAP_DMA;		\	dma->IntPend = (1 << tasknum);						\}#endif  /* __MPC8220_DMA_H */