Mercurial > ecos
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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new file mode 100644 --- /dev/null +++ b/packages/hal/mips/malta/current/src/smsc37m81x.c @@ -0,0 +1,130 @@ +//============================================================================= +// +// 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 +
