diff packages/hal/mips/malta/current/src/smsc37m81x.c @ 208:e0c0827131d1 ecos

Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents
children d2c90368aeef
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+//=============================================================================
+//
+//      smsc37m81x.c
+//
+//      Init code for SMSC 37m81x super IO controller
+//
+//=============================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   jskov
+// Contributors:jskov
+// Date:        2001-04-02
+// Description: Init code for SMSC 37m81x super IO controller
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <pkgconf/hal.h>
+#include CYGBLD_HAL_PLATFORM_H
+
+#include <cyg/hal/hal_arch.h>           // SAVE/RESTORE GP macros
+#include <cyg/hal/hal_io.h>             // IO macros
+#include <cyg/hal/hal_intr.h>           // interrupt vectors
+
+
+// From page 137+ in SMSC-37m81x.pdf
+#define SMSC_CONFIG             0xb80003f0
+#define SMSC_CONFIG_DATA        0xb80003f1
+
+#define SMSC_CONFIG_DEV         0x07
+#define SMSC_CONFIG_ACTIVATE    0x30
+#define SMSC_CONFIG_ENTER       0x55
+#define SMSC_CONFIG_BASE_HIGH   0x60
+#define SMSC_CONFIG_BASE_LOW    0x61
+#define SMSC_CONFIG_IRQ         0x70
+#define SMSC_CONFIG_EXIT        0xaa
+#define SMSC_CONFIG_MODE        0xf0
+
+#define SMSC_CONFIG_DEV_COM1    0x04
+#define SMSC_CONFIG_DEV_COM2    0x05
+
+#define SMSC_CONFIG_MODE_HIGH   0x02
+
+#define SMSC_CONFIG_ACTIVATE_ENABLE 0x01
+
+
+void
+cyg_hal_init_superIO(void)
+{
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_ENTER);
+
+    // Configure and enable COM1
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_DEV);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, SMSC_CONFIG_DEV_COM1);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_BASE_HIGH);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, 0x03);
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_BASE_LOW);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, 0xf8);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_IRQ);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA,
+                    (CYGNUM_HAL_INTERRUPT_TTY0-CYGNUM_HAL_INTERRUPT_EXTERNAL_BASE));
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_MODE);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, SMSC_CONFIG_MODE_HIGH);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_ACTIVATE);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, SMSC_CONFIG_ACTIVATE_ENABLE);
+
+    // Configure and enable COM2
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_DEV);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, SMSC_CONFIG_DEV_COM2);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_BASE_HIGH);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, 0x02);
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_BASE_LOW);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, 0xf8);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_IRQ);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA,
+                    (CYGNUM_HAL_INTERRUPT_TTY1-CYGNUM_HAL_INTERRUPT_EXTERNAL_BASE));
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_MODE);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, SMSC_CONFIG_MODE_HIGH);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_ACTIVATE);
+    HAL_WRITE_UINT8(SMSC_CONFIG_DATA, SMSC_CONFIG_ACTIVATE_ENABLE);
+
+    HAL_WRITE_UINT8(SMSC_CONFIG, SMSC_CONFIG_EXIT);
+
+}
+
+//-----------------------------------------------------------------------------
+// end of smsc37m81x.c
+