From 945af8d723a29e9b6289d84250745ed0dc16fc81 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Wed, 16 Jul 2003 21:53:01 +0000
Subject: * Add support for IceCube board (with MGT5100 and MPC5200 CPUs)

* Add support for MGT5100 and MPC5200 processors
---
 cpu/mpc5xxx/sdma.h | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 cpu/mpc5xxx/sdma.h

(limited to 'cpu/mpc5xxx/sdma.h')

diff --git a/cpu/mpc5xxx/sdma.h b/cpu/mpc5xxx/sdma.h
new file mode 100644
index 0000000..8b740e4
--- /dev/null
+++ b/cpu/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 */
-- 
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