mod_regs_cpg.h

来自「eCos操作系统源码」· C头文件 代码 · 共 173 行

//=============================================================================
//
//      mod_regs_cpg.h
//
//      CPG (clock pulse generator) Module register definitions
//
//=============================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
// Copyright (C) 2003 Nick Garnett 
//
// 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, nickg
// Date:        2000-10-30
//              
//####DESCRIPTIONEND####
//
//=============================================================================

//--------------------------------------------------------------------------
// Oscillator control registers
#define CYGARC_REG_FRQCR                0xFFC00000
#define CYGARC_REG_STBCR                0xFFC00004
#define CYGARC_REG_WTCNT                0xFFC00008 // read 8bit, write 16bit
#define CYGARC_REG_WTCSR                0xFFC0000C // read 8bit, write 16bit
#define CYGARC_REG_STBCR2               0xFFC00010

#ifdef CYGPKG_HAL_SH_202
#define CYGARC_REG_FRQCR3               0xFE0A0018
#endif

#define CYGARC_REG_WTCNT_WRITE          0x5a00     // top 8bit value for write

#define CYGARC_REG_WTCSR_WRITE          0xa500     // top 8bit value for write
#define CYGARC_REG_WTCSR_TME            0x80       // timer enable
#define CYGARC_REG_WTCSR_WT_IT          0x40       // watchdog(1)/interval(0)
#define CYGARC_REG_WTCSR_RSTS           0x20       // manual(1)/poweron(0)
#define CYGARC_REG_WTCSR_WOVF           0x10       // watchdog overflow
#define CYGARC_REG_WTCSR_IOVF           0x08       // interval overflow
#define CYGARC_REG_WTCSR_CKS2           0x04       // clock select 2
#define CYGARC_REG_WTCSR_CKS1           0x02       // clock select 1
#define CYGARC_REG_WTCSR_CKS0           0x01       // clock select 0
#define CYGARC_REG_WTCSR_CKSx_MASK      0x07       // clock select mask
// This is the period (in us) between watchdog reset and overflow.
// Note: We use max timeout delay for now.
#define CYGARC_REG_WTCSR_CKSx_SETTING   0x07       // max delay

#define CYGARC_REG_WTCSR_PERIOD         ((1000000000/(CYGHWR_HAL_SH_ONCHIP_PERIPHERAL_SPEED/4096))*256)

// Translate various CDL clock configurations to register equivalents
// for the various CPG versions
#if   (CYGARC_SH_MOD_CPG == 1) // ---------------------------- V1

// PLL1
#if   (CYGHWR_HAL_SH_OOC_PLL_1 == 0)
# define CYGARC_REG_FRQCR_INIT_PLL1 0x0000
#elif (CYGHWR_HAL_SH_OOC_PLL_1 == 4)
# define CYGARC_REG_FRQCR_INIT_PLL1 0x0400
#elif (CYGHWR_HAL_SH_OOC_PLL_1 == 6)
# define CYGARC_REG_FRQCR_INIT_PLL1 0x0400
#elif (CYGHWR_HAL_SH_OOC_PLL_1 == 8)
# define CYGARC_REG_FRQCR_INIT_PLL1 0x0400
#else
# error "Unsupported PLL1 setting"
#endif

// PLL2
#if   (CYGHWR_HAL_SH_OOC_PLL_2 == 0)
# define CYGARC_REG_FRQCR_INIT_PLL2 0x0000
#elif (CYGHWR_HAL_SH_OOC_PLL_2 == 1)
# define CYGARC_REG_FRQCR_INIT_PLL2 0x0200
#else
# error "Unsupported PLL2 setting"
#endif

// Divider IFC
#if   (CYGHWR_HAL_SH_OOC_DIVIDER_IFC == 1)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_IFC 0x0000
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_IFC == 2)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_IFC 0x0040
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_IFC == 3)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_IFC 0x0080
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_IFC == 4)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_IFC 0x00c0
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_IFC == 6)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_IFC 0x0100
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_IFC == 8)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_IFC 0x0140
#else
# error "Unsupported Divider IFC setting"
#endif

// Divider BFC
#if   (CYGHWR_HAL_SH_OOC_DIVIDER_BFC == 1)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_BFC 0x0000
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_BFC == 2)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_BFC 0x0008
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_BFC == 3)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_BFC 0x0010
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_BFC == 4)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_BFC 0x0018
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_BFC == 6)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_BFC 0x0020
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_BFC == 8)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_BFC 0x0028
#else
# error "Unsupported Divider BFC setting"
#endif

// Divider PFC
#if (CYGHWR_HAL_SH_OOC_DIVIDER_PFC == 2)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_PFC 0x0000
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_PFC == 3)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_PFC 0x0001
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_PFC == 4)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_PFC 0x0002
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_PFC == 6)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_PFC 0x0003
#elif (CYGHWR_HAL_SH_OOC_DIVIDER_PFC == 8)
# define CYGARC_REG_FRQCR_INIT_DIVIDER_PFC 0x0004
#else
# error "Unsupported Divider PFC setting"
#endif


// CKOEN
#ifdef CYGHWR_HAL_SH_OOC_CKIO
# define CYGARC_REG_FRQCR_INIT_CKOEN 0x0800
#else
# define CYGARC_REG_FRQCR_INIT_CKOEN 0x0000
#endif

#else

# error "Unsupported CPG version"

#endif

// Init value
#define CYGARC_REG_FRQCR_INIT (CYGARC_REG_FRQCR_INIT_PLL1|CYGARC_REG_FRQCR_INIT_PLL2|CYGARC_REG_FRQCR_INIT_DIVIDER_IFC|CYGARC_REG_FRQCR_INIT_DIVIDER_BFC|CYGARC_REG_FRQCR_INIT_DIVIDER_PFC|CYGARC_REG_FRQCR_INIT_CKOEN)