Patch by TsiChung Liew, 23 Sep 2004:
- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards
diff --git a/cpu/mpc8220/dma.h b/cpu/mpc8220/dma.h
new file mode 100644
index 0000000..d06ee63
--- /dev/null
+++ b/cpu/mpc8220/dma.h
@@ -0,0 +1,68 @@
+/*
+ * (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 */