--- /dev/null
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+/* Functions for initializing variable tables of different types of tasks. */
+
+/*
+ * Do not edit!
+ */
+
+#ifdef CONFIG_FSLDMAFEC
+
+#include <MCD_dma.h>
+
+extern dmaRegs *MCD_dmaBar;
+
+/* Task 0 */
+
+void MCD_startDmaChainNoEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 2, (u32) currBD); /* var[2] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff & srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff & destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 11, (u32) xferSize); /* var[11] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff & xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 3, (u32) 0x00000000); /* var[3] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x00000000); /* var[12] */
+ MCD_SET_VAR(taskChan, 13, (u32) 0x80000000); /* var[13] */
+ MCD_SET_VAR(taskChan, 14, (u32) 0x00000010); /* var[14] */
+ MCD_SET_VAR(taskChan, 15, (u32) 0x00000004); /* var[15] */
+ MCD_SET_VAR(taskChan, 16, (u32) 0x08000000); /* var[16] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0x80000000); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x80000001); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x40000000); /* inc[6] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 1 */
+
+void MCD_startDmaSingleNoEu(char *srcAddr, short srcIncr, char *destAddr,
+ short destIncr, int dmaSize, short xferSizeIncr,
+ int flags, int *currBD, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 7, (u32) srcAddr); /* var[7] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff & srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) destAddr); /* var[2] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff & destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 3, (u32) dmaSize); /* var[3] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff & xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 5, (u32) flags); /* var[5] */
+ MCD_SET_VAR(taskChan, 1, (u32) currBD); /* var[1] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000004); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x08000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0x80000001); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x40000000); /* inc[5] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 2 */
+
+void MCD_startDmaChainEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 3, (u32) currBD); /* var[3] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff & srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff & destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 12, (u32) xferSize); /* var[12] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff & xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) 0x00000000); /* var[2] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 11, (u32) 0x00000000); /* var[11] */
+ MCD_SET_VAR(taskChan, 13, (u32) 0x00000000); /* var[13] */
+ MCD_SET_VAR(taskChan, 14, (u32) 0x80000000); /* var[14] */
+ MCD_SET_VAR(taskChan, 15, (u32) 0x00000010); /* var[15] */
+ MCD_SET_VAR(taskChan, 16, (u32) 0x00000001); /* var[16] */
+ MCD_SET_VAR(taskChan, 17, (u32) 0x00000004); /* var[17] */
+ MCD_SET_VAR(taskChan, 18, (u32) 0x08000000); /* var[18] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0x80000000); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0xc0000000); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x80000001); /* inc[6] */
+ MCD_SET_VAR(taskChan, 31, (u32) 0x40000000); /* inc[7] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 3 */
+
+void MCD_startDmaSingleEu(char *srcAddr, short srcIncr, char *destAddr,
+ short destIncr, int dmaSize, short xferSizeIncr,
+ int flags, int *currBD, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 8, (u32) srcAddr); /* var[8] */
+ MCD_SET_VAR(taskChan, 25, (u32) (0xe000 << 16) | (0xffff & srcIncr)); /* inc[1] */
+ MCD_SET_VAR(taskChan, 3, (u32) destAddr); /* var[3] */
+ MCD_SET_VAR(taskChan, 24, (u32) (0xe000 << 16) | (0xffff & destIncr)); /* inc[0] */
+ MCD_SET_VAR(taskChan, 4, (u32) dmaSize); /* var[4] */
+ MCD_SET_VAR(taskChan, 26, (u32) (0x2000 << 16) | (0xffff & xferSizeIncr)); /* inc[2] */
+ MCD_SET_VAR(taskChan, 6, (u32) flags); /* var[6] */
+ MCD_SET_VAR(taskChan, 2, (u32) currBD); /* var[2] */
+ MCD_SET_VAR(taskChan, 0, (u32) cSave); /* var[0] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000001); /* var[10] */
+ MCD_SET_VAR(taskChan, 11, (u32) 0x00000004); /* var[11] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x08000000); /* var[12] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x00000000); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0xc0000000); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x80000000); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x80000001); /* inc[6] */
+ MCD_SET_VAR(taskChan, 31, (u32) 0x40000000); /* inc[7] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 4 */
+
+void MCD_startDmaENetRcv(char *bDBase, char *currBD, char *rcvFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 0, (u32) bDBase); /* var[0] */
+ MCD_SET_VAR(taskChan, 3, (u32) currBD); /* var[3] */
+ MCD_SET_VAR(taskChan, 6, (u32) rcvFifoPtr); /* var[6] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) 0x00000000); /* var[2] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x0000ffff); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x30000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 11, (u32) 0x0fffffff); /* var[11] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x00000008); /* var[12] */
+ MCD_SET_VAR(taskChan, 24, (u32) 0x00000000); /* inc[0] */
+ MCD_SET_VAR(taskChan, 25, (u32) 0x60000000); /* inc[1] */
+ MCD_SET_VAR(taskChan, 26, (u32) 0x20000004); /* inc[2] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0x40000000); /* inc[3] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+/* Task 5 */
+
+void MCD_startDmaENetXmit(char *bDBase, char *currBD, char *xmitFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel)
+{
+ volatile TaskTableEntry *taskChan = taskTable + channel;
+
+ MCD_SET_VAR(taskChan, 0, (u32) bDBase); /* var[0] */
+ MCD_SET_VAR(taskChan, 3, (u32) currBD); /* var[3] */
+ MCD_SET_VAR(taskChan, 11, (u32) xmitFifoPtr); /* var[11] */
+ MCD_SET_VAR(taskChan, 1, (u32) 0x00000000); /* var[1] */
+ MCD_SET_VAR(taskChan, 2, (u32) 0x00000000); /* var[2] */
+ MCD_SET_VAR(taskChan, 4, (u32) 0x00000000); /* var[4] */
+ MCD_SET_VAR(taskChan, 5, (u32) 0x00000000); /* var[5] */
+ MCD_SET_VAR(taskChan, 6, (u32) 0x00000000); /* var[6] */
+ MCD_SET_VAR(taskChan, 7, (u32) 0x00000000); /* var[7] */
+ MCD_SET_VAR(taskChan, 8, (u32) 0x00000000); /* var[8] */
+ MCD_SET_VAR(taskChan, 9, (u32) 0x00000000); /* var[9] */
+ MCD_SET_VAR(taskChan, 10, (u32) 0x00000000); /* var[10] */
+ MCD_SET_VAR(taskChan, 12, (u32) 0x00000000); /* var[12] */
+ MCD_SET_VAR(taskChan, 13, (u32) 0x0000ffff); /* var[13] */
+ MCD_SET_VAR(taskChan, 14, (u32) 0xffffffff); /* var[14] */
+ MCD_SET_VAR(taskChan, 15, (u32) 0x00000004); /* var[15] */
+ MCD_SET_VAR(taskChan, 16, (u32) 0x00000008); /* var[16] */
+ MCD_SET_VAR(taskChan, 24, (u32) 0x00000000); /* inc[0] */
+ MCD_SET_VAR(taskChan, 25, (u32) 0x60000000); /* inc[1] */
+ MCD_SET_VAR(taskChan, 26, (u32) 0x40000000); /* inc[2] */
+ MCD_SET_VAR(taskChan, 27, (u32) 0xc000fffc); /* inc[3] */
+ MCD_SET_VAR(taskChan, 28, (u32) 0xe0000004); /* inc[4] */
+ MCD_SET_VAR(taskChan, 29, (u32) 0x80000000); /* inc[5] */
+ MCD_SET_VAR(taskChan, 30, (u32) 0x4000ffff); /* inc[6] */
+ MCD_SET_VAR(taskChan, 31, (u32) 0xe0000001); /* inc[7] */
+
+ /* Set the task's Enable bit in its Task Control Register */
+ MCD_dmaBar->taskControl[channel] |= (u16) 0x8000;
+}
+
+#endif /* CONFIG_FSLDMAFEC */
+
--- /dev/null
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB := $(obj)libdma.a
+
+COBJS-y += MCD_tasksInit.o MCD_dmaApi.o MCD_tasks.o
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+all: $(LIB)
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
--- /dev/null
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _MCD_API_H
+#define _MCD_API_H
+
+/* Turn Execution Unit tasks ON (#define) or OFF (#undef) */
+#undef MCD_INCLUDE_EU
+
+/* Number of DMA channels */
+#define NCHANNELS 16
+
+/* Total number of variants */
+#ifdef MCD_INCLUDE_EU
+#define NUMOFVARIANTS 6
+#else
+#define NUMOFVARIANTS 4
+#endif
+
+/* Define sizes of the various tables */
+#define TASK_TABLE_SIZE (NCHANNELS*32)
+#define VAR_TAB_SIZE (128)
+#define CONTEXT_SAVE_SIZE (128)
+#define FUNCDESC_TAB_SIZE (256)
+
+#ifdef MCD_INCLUDE_EU
+#define FUNCDESC_TAB_NUM 16
+#else
+#define FUNCDESC_TAB_NUM 1
+#endif
+
+#ifndef DEFINESONLY
+
+/* Portability typedefs */
+#if 1
+#include "common.h"
+#else
+#ifndef s32
+typedef int s32;
+#endif
+#ifndef u32
+typedef unsigned int u32;
+#endif
+#ifndef s16
+typedef short s16;
+#endif
+#ifndef u16
+typedef unsigned short u16;
+#endif
+#ifndef s8
+typedef char s8;
+#endif
+#ifndef u8
+typedef unsigned char u8;
+#endif
+#endif
+
+/*
+ * These structures represent the internal registers of the
+ * multi-channel DMA
+ */
+struct dmaRegs_s {
+ u32 taskbar; /* task table base address */
+ u32 currPtr;
+ u32 endPtr;
+ u32 varTablePtr;
+ u16 dma_rsvd0;
+ u16 ptdControl; /* ptd control */
+ u32 intPending; /* interrupt pending */
+ u32 intMask; /* interrupt mask */
+ u16 taskControl[16]; /* task control */
+ u8 priority[32]; /* priority */
+ u32 initiatorMux; /* initiator mux control */
+ u32 taskSize0; /* task size control 0. */
+ u32 taskSize1; /* task size control 1. */
+ u32 dma_rsvd1; /* reserved */
+ u32 dma_rsvd2; /* reserved */
+ u32 debugComp1; /* debug comparator 1 */
+ u32 debugComp2; /* debug comparator 2 */
+ u32 debugControl; /* debug control */
+ u32 debugStatus; /* debug status */
+ u32 ptdDebug; /* priority task decode debug */
+ u32 dma_rsvd3[31]; /* reserved */
+};
+typedef volatile struct dmaRegs_s dmaRegs;
+
+#endif
+
+/* PTD contrl reg bits */
+#define PTD_CTL_TSK_PRI 0x8000
+#define PTD_CTL_COMM_PREFETCH 0x0001
+
+/* Task Control reg bits and field masks */
+#define TASK_CTL_EN 0x8000
+#define TASK_CTL_VALID 0x4000
+#define TASK_CTL_ALWAYS 0x2000
+#define TASK_CTL_INIT_MASK 0x1f00
+#define TASK_CTL_ASTRT 0x0080
+#define TASK_CTL_HIPRITSKEN 0x0040
+#define TASK_CTL_HLDINITNUM 0x0020
+#define TASK_CTL_ASTSKNUM_MASK 0x000f
+
+/* Priority reg bits and field masks */
+#define PRIORITY_HLD 0x80
+#define PRIORITY_PRI_MASK 0x07
+
+/* Debug Control reg bits and field masks */
+#define DBG_CTL_BLOCK_TASKS_MASK 0xffff0000
+#define DBG_CTL_AUTO_ARM 0x00008000
+#define DBG_CTL_BREAK 0x00004000
+#define DBG_CTL_COMP1_TYP_MASK 0x00003800
+#define DBG_CTL_COMP2_TYP_MASK 0x00000070
+#define DBG_CTL_EXT_BREAK 0x00000004
+#define DBG_CTL_INT_BREAK 0x00000002
+
+/*
+ * PTD Debug reg selector addresses
+ * This reg must be written with a value to show the contents of
+ * one of the desired internal register.
+ */
+#define PTD_DBG_REQ 0x00 /* shows the state of 31 initiators */
+#define PTD_DBG_TSK_VLD_INIT 0x01 /* shows which 16 tasks are valid and
+ have initiators asserted */
+
+/* General return values */
+#define MCD_OK 0
+#define MCD_ERROR -1
+#define MCD_TABLE_UNALIGNED -2
+#define MCD_CHANNEL_INVALID -3
+
+/* MCD_initDma input flags */
+#define MCD_RELOC_TASKS 0x00000001
+#define MCD_NO_RELOC_TASKS 0x00000000
+#define MCD_COMM_PREFETCH_EN 0x00000002 /* MCF547x/548x ONLY */
+
+/*
+ * MCD_dmaStatus Status Values for each channel:
+ * MCD_NO_DMA - No DMA has been requested since reset
+ * MCD_IDLE - DMA active, but the initiator is currently inactive
+ * MCD_RUNNING - DMA active, and the initiator is currently active
+ * MCD_PAUSED - DMA active but it is currently paused
+ * MCD_HALTED - the most recent DMA has been killed with MCD_killTask()
+ * MCD_DONE - the most recent DMA has completed
+ */
+#define MCD_NO_DMA 1
+#define MCD_IDLE 2
+#define MCD_RUNNING 3
+#define MCD_PAUSED 4
+#define MCD_HALTED 5
+#define MCD_DONE 6
+
+/* MCD_startDma parameter defines */
+
+/* Constants for the funcDesc parameter */
+/*
+ * MCD_NO_BYTE_SWAP - to disable byte swapping
+ * MCD_BYTE_REVERSE - to reverse the bytes of each u32 of the DMAed data
+ * MCD_U16_REVERSE - to reverse the 16-bit halves of each 32-bit data
+ * value being DMAed
+ * MCD_U16_BYTE_REVERSE - to reverse the byte halves of each 16-bit half of
+ * each 32-bit data value DMAed
+ * MCD_NO_BIT_REV - do not reverse the bits of each byte DMAed
+ * MCD_BIT_REV - reverse the bits of each byte DMAed
+ * MCD_CRC16 - to perform CRC-16 on DMAed data
+ * MCD_CRCCCITT - to perform CRC-CCITT on DMAed data
+ * MCD_CRC32 - to perform CRC-32 on DMAed data
+ * MCD_CSUMINET - to perform internet checksums on DMAed data
+ * MCD_NO_CSUM - to perform no checksumming
+ */
+#define MCD_NO_BYTE_SWAP 0x00045670
+#define MCD_BYTE_REVERSE 0x00076540
+#define MCD_U16_REVERSE 0x00067450
+#define MCD_U16_BYTE_REVERSE 0x00054760
+#define MCD_NO_BIT_REV 0x00000000
+#define MCD_BIT_REV 0x00088880
+/* CRCing: */
+#define MCD_CRC16 0xc0100000
+#define MCD_CRCCCITT 0xc0200000
+#define MCD_CRC32 0xc0300000
+#define MCD_CSUMINET 0xc0400000
+#define MCD_NO_CSUM 0xa0000000
+
+#define MCD_FUNC_NOEU1 (MCD_NO_BYTE_SWAP | MCD_NO_BIT_REV | \
+ MCD_NO_CSUM)
+#define MCD_FUNC_NOEU2 (MCD_NO_BYTE_SWAP | MCD_NO_CSUM)
+
+/* Constants for the flags parameter */
+#define MCD_TT_FLAGS_RL 0x00000001 /* Read line */
+#define MCD_TT_FLAGS_CW 0x00000002 /* Combine Writes */
+#define MCD_TT_FLAGS_SP 0x00000004 /* MCF547x/548x ONLY */
+#define MCD_TT_FLAGS_MASK 0x000000ff
+#define MCD_TT_FLAGS_DEF (MCD_TT_FLAGS_RL | MCD_TT_FLAGS_CW)
+
+#define MCD_SINGLE_DMA 0x00000100 /* Unchained DMA */
+#define MCD_CHAIN_DMA /* TBD */
+#define MCD_EU_DMA /* TBD */
+#define MCD_FECTX_DMA 0x00001000 /* FEC TX ring DMA */
+#define MCD_FECRX_DMA 0x00002000 /* FEC RX ring DMA */
+
+/* these flags are valid for MCD_startDma and the chained buffer descriptors */
+/*
+ * MCD_BUF_READY - indicates that this buf is now under the DMA's ctrl
+ * MCD_WRAP - to tell the FEC Dmas to wrap to the first BD
+ * MCD_INTERRUPT - to generate an interrupt after completion of the DMA
+ * MCD_END_FRAME - tell the DMA to end the frame when transferring
+ * last byte of data in buffer
+ * MCD_CRC_RESTART - to empty out the accumulated checksum prior to
+ * performing the DMA
+ */
+#define MCD_BUF_READY 0x80000000
+#define MCD_WRAP 0x20000000
+#define MCD_INTERRUPT 0x10000000
+#define MCD_END_FRAME 0x08000000
+#define MCD_CRC_RESTART 0x40000000
+
+/* Defines for the FEC buffer descriptor control/status word*/
+#define MCD_FEC_BUF_READY 0x8000
+#define MCD_FEC_WRAP 0x2000
+#define MCD_FEC_INTERRUPT 0x1000
+#define MCD_FEC_END_FRAME 0x0800
+
+/* Defines for general intuitiveness */
+
+#define MCD_TRUE 1
+#define MCD_FALSE 0
+
+/* Three different cases for destination and source. */
+#define MINUS1 -1
+#define ZERO 0
+#define PLUS1 1
+
+#ifndef DEFINESONLY
+
+/* Task Table Entry struct*/
+typedef struct {
+ u32 TDTstart; /* task descriptor table start */
+ u32 TDTend; /* task descriptor table end */
+ u32 varTab; /* variable table start */
+ u32 FDTandFlags; /* function descriptor table start & flags */
+ volatile u32 descAddrAndStatus;
+ volatile u32 modifiedVarTab;
+ u32 contextSaveSpace; /* context save space start */
+ u32 literalBases;
+} TaskTableEntry;
+
+/* Chained buffer descriptor:
+ * flags - flags describing the DMA
+ * csumResult - checksum performed since last checksum reset
+ * srcAddr - the address to move data from
+ * destAddr - the address to move data to
+ * lastDestAddr - the last address written to
+ * dmaSize - the no of bytes to xfer independent of the xfer sz
+ * next - next buffer descriptor in chain
+ * info - private info about this descriptor; DMA does not affect it
+ */
+typedef volatile struct MCD_bufDesc_struct MCD_bufDesc;
+struct MCD_bufDesc_struct {
+ u32 flags;
+ u32 csumResult;
+ s8 *srcAddr;
+ s8 *destAddr;
+ s8 *lastDestAddr;
+ u32 dmaSize;
+ MCD_bufDesc *next;
+ u32 info;
+};
+
+/* Progress Query struct:
+ * lastSrcAddr - the most-recent or last, post-increment source address
+ * lastDestAddr - the most-recent or last, post-increment destination address
+ * dmaSize - the amount of data transferred for the current buffer
+ * currBufDesc - pointer to the current buffer descriptor being DMAed
+ */
+
+typedef volatile struct MCD_XferProg_struct {
+ s8 *lastSrcAddr;
+ s8 *lastDestAddr;
+ u32 dmaSize;
+ MCD_bufDesc *currBufDesc;
+} MCD_XferProg;
+
+/* FEC buffer descriptor */
+typedef volatile struct MCD_bufDescFec_struct {
+ u16 statCtrl;
+ u16 length;
+ u32 dataPointer;
+} MCD_bufDescFec;
+
+/*************************************************************************/
+/* API function Prototypes - see MCD_dmaApi.c for further notes */
+
+/* MCD_startDma starts a particular kind of DMA:
+ * srcAddr - the channel on which to run the DMA
+ * srcIncr - the address to move data from, or buffer-descriptor address
+ * destAddr - the amount to increment the source address per transfer
+ * destIncr - the address to move data to
+ * dmaSize - the amount to increment the destination address per transfer
+ * xferSize - the number bytes in of each data movement (1, 2, or 4)
+ * initiator - what device initiates the DMA
+ * priority - priority of the DMA
+ * flags - flags describing the DMA
+ * funcDesc - description of byte swapping, bit swapping, and CRC actions
+ */
+int MCD_startDma(int channel, s8 * srcAddr, s16 srcIncr, s8 * destAddr,
+ s16 destIncr, u32 dmaSize, u32 xferSize, u32 initiator,
+ int priority, u32 flags, u32 funcDesc);
+
+/*
+ * MCD_initDma() initializes the DMA API by setting up a pointer to the DMA
+ * registers, relocating and creating the appropriate task structures, and
+ * setting up some global settings
+ */
+int MCD_initDma(dmaRegs * sDmaBarAddr, void *taskTableDest, u32 flags);
+
+/* MCD_dmaStatus() returns the status of the DMA on the requested channel. */
+int MCD_dmaStatus(int channel);
+
+/* MCD_XferProgrQuery() returns progress of DMA on requested channel */
+int MCD_XferProgrQuery(int channel, MCD_XferProg * progRep);
+
+/*
+ * MCD_killDma() halts the DMA on the requested channel, without any
+ * intention of resuming the DMA.
+ */
+int MCD_killDma(int channel);
+
+/*
+ * MCD_continDma() continues a DMA which as stopped due to encountering an
+ * unready buffer descriptor.
+ */
+int MCD_continDma(int channel);
+
+/*
+ * MCD_pauseDma() pauses the DMA on the given channel ( if any DMA is
+ * running on that channel).
+ */
+int MCD_pauseDma(int channel);
+
+/*
+ * MCD_resumeDma() resumes the DMA on a given channel (if any DMA is
+ * running on that channel).
+ */
+int MCD_resumeDma(int channel);
+
+/* MCD_csumQuery provides the checksum/CRC after performing a non-chained DMA */
+int MCD_csumQuery(int channel, u32 * csum);
+
+/*
+ * MCD_getCodeSize provides the packed size required by the microcoded task
+ * and structures.
+ */
+int MCD_getCodeSize(void);
+
+/*
+ * MCD_getVersion provides a pointer to a version string and returns a
+ * version number.
+ */
+int MCD_getVersion(char **longVersion);
+
+/* macro for setting a location in the variable table */
+#define MCD_SET_VAR(taskTab,idx,value) ((u32 *)(taskTab)->varTab)[idx] = value
+/* Note that MCD_SET_VAR() is invoked many times in firing up a DMA function,
+ so I'm avoiding surrounding it with "do {} while(0)" */
+
+#endif /* DEFINESONLY */
+
+#endif /* _MCD_API_H */
--- /dev/null
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+ /* This file is autogenerated. Do not change */
+#define CURRBD 4
+#define DCOUNT 6
+#define DESTPTR 5
+#define SRCPTR 7
--- /dev/null
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef MCD_TSK_INIT_H
+#define MCD_TSK_INIT_H 1
+
+/*
+ * Do not edit!
+ */
+
+/* Task 0 */
+void MCD_startDmaChainNoEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 1 */
+void MCD_startDmaSingleNoEu(char *srcAddr, short srcIncr, char *destAddr,
+ short destIncr, int dmaSize, short xferSizeIncr,
+ int flags, int *currBD, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 2 */
+void MCD_startDmaChainEu(int *currBD, short srcIncr, short destIncr,
+ int xferSize, short xferSizeIncr, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 3 */
+void MCD_startDmaSingleEu(char *srcAddr, short srcIncr, char *destAddr,
+ short destIncr, int dmaSize, short xferSizeIncr,
+ int flags, int *currBD, int *cSave,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 4 */
+void MCD_startDmaENetRcv(char *bDBase, char *currBD, char *rcvFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel);
+
+/* Task 5 */
+void MCD_startDmaENetXmit(char *bDBase, char *currBD, char *xmitFifoPtr,
+ volatile TaskTableEntry * taskTable, int channel);
+
+#endif /* MCD_TSK_INIT_H */
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