/* * (C) Copyright 2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * This file is based on code * (C) Copyright Motorola, Inc., 2000 * * odin smartdma header file */ #ifndef __MPC5XXX_SDMA_H #define __MPC5XXX_SDMA_H #include <common.h> #include <mpc5xxx.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 (MPC5XXX_SRAM + 0x0800) /* base address of SRAM area for buffer descriptors */ #define FEC_BD_BASE (MPC5XXX_SRAM + 0x0820) /*---------------------------------------------------------------------*/ /* common shortcuts used by driver C code */ /*---------------------------------------------------------------------*/ /* Disable SmartDMA task */ #define SDMA_TASK_DISABLE(tasknum) \ { \ volatile ushort *tcr = (ushort *)(MPC5XXX_SDMA + 0x0000001c + 2 * tasknum); \ *tcr = (*tcr) & (~0x8000); \ } /* Enable SmartDMA task */ #define SDMA_TASK_ENABLE(tasknum) \ { \ volatile ushort *tcr = (ushort *) (MPC5XXX_SDMA + 0x0000001c + 2 * tasknum); \ *tcr = (*tcr) | 0x8000; \ } /* Enable interrupt */ #define SDMA_INT_ENABLE(tasknum) \ { \ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \ sdma->IntMask &= ~(1 << tasknum); \ } /* Disable interrupt */ #define SDMA_INT_DISABLE(tasknum) \ { \ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \ sdma->IntMask |= (1 << tasknum); \ } /* Clear interrupt pending bits */ #define SDMA_CLEAR_IEVENT(tasknum) \ { \ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \ sdma->IntPend = (1 << tasknum); \ } /* get interrupt pending bit of a task */ #define SDMA_GET_PENDINGBIT(tasknum) \ ((*(vu_long *)(MPC5XXX_SDMA + 0x14)) & (1<<(tasknum))) /* get interrupt mask bit of a task */ #define SDMA_GET_MASKBIT(tasknum) \ ((*(vu_long *)(MPC5XXX_SDMA + 0x18)) & (1<<(tasknum))) #endif /* __MPC5XXX_SDMA_H */