summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/mpc5xxx_sdma.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/include/mpc5xxx_sdma.h b/include/mpc5xxx_sdma.h
new file mode 100644
index 0000000..8b740e4
--- /dev/null
+++ b/include/mpc5xxx_sdma.h
@@ -0,0 +1,93 @@
+/*
+ * (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 interupt pending bit of a task */
+#define SDMA_GET_PENDINGBIT(tasknum) \
+ ((*(vu_long *)(MPC5XXX_SDMA + 0x14)) & (1<<(tasknum)))
+
+/* get interupt mask bit of a task */
+#define SDMA_GET_MASKBIT(tasknum) \
+ ((*(vu_long *)(MPC5XXX_SDMA + 0x18)) & (1<<(tasknum)))
+
+#endif /* __MPC5XXX_SDMA_H */