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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [hal/] [calmrisc16/] [ceb/] [current/] [src/] [plf_misc.c] - Rev 838
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//========================================================================== // // plf_misc.c // // HAL platform miscellaneous functions // //========================================================================== // ####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, 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., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 v2. // // This exception does not invalidate any other reasons why a work based // on this file might be covered by the GNU General Public License. // ------------------------------------------- // ####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): nickg // Contributors: nickg, jlarmour, dmoseley, msalter // Date: 2000-06-06 // Purpose: HAL miscellaneous functions // Description: This file contains miscellaneous functions provided by the // HAL. // //####DESCRIPTIONEND#### // //========================================================================*/ #define CYGARC_HAL_COMMON_EXPORT_CPU_MACROS #include <pkgconf/hal.h> #include <cyg/infra/cyg_type.h> // Base types #include <cyg/infra/cyg_trac.h> // tracing macros #include <cyg/infra/cyg_ass.h> // assertion macros #include <cyg/hal/hal_arch.h> // architectural definitions #include <cyg/hal/hal_intr.h> // Interrupt handling #include <cyg/hal/hal_cache.h> // Cache handling #include <cyg/hal/hal_if.h> /*------------------------------------------------------------------------*/ #if defined(CYGPKG_CYGMON) #include CYGHWR_MEMORY_LAYOUT_H extern unsigned long cygmon_memsize; #endif extern void __txchar(unsigned ch); void hal_platform_init(void) { // Set up eCos/ROM interfaces hal_if_init(); } /*------------------------------------------------------------------------*/ /* Delay for some number of useconds. */ void hal_delay_us(cyg_uint32 us) { us /= 3; while (us-- > 0); } /*------------------------------------------------------------------------*/ /* Reset support */ void hal_ceb_reset(void) { } void hal_plf_write_prog_halfword(unsigned long addr, unsigned short val) { unsigned short pch = addr >> 16; unsigned short pcl = addr & 0xffff; while(cyg_hal_plf_read_sr_tbr() & 1); // while TXD_FULL cyg_hal_plf_write_tbr(pch); cyg_hal_plf_write_sr_tbr(0x03); // addr_high short while(cyg_hal_plf_read_sr_tbr() & 1); // while TXD_FULL cyg_hal_plf_write_tbr(pcl); cyg_hal_plf_write_sr_tbr(0x05); // addr_low short while(cyg_hal_plf_read_sr_tbr() & 1); // while TXD_FULL cyg_hal_plf_write_tbr(val); cyg_hal_plf_write_sr_tbr(0x07); // program data value while(cyg_hal_plf_read_sr_tbr() & 1); // while TXD_FULL } /*------------------------------------------------------------------------*/ /* End of plf_misc.c */
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