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/*==========================================================================
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//
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// a2f_misc.c
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//
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// Cortex-M Actel A2F HAL functions
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//
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//==========================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 2011 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): ccoutand
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// Contributors:
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// Date: 2011-02-03
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// Description:
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//
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//####DESCRIPTIONEND####
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//
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//========================================================================*/
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#include <pkgconf/hal.h>
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#include <pkgconf/hal_cortexm.h>
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#include <pkgconf/hal_cortexm_a2fxxx.h>
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#ifdef CYGPKG_KERNEL
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#include <pkgconf/kernel.h>
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#endif
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#include <cyg/infra/diag.h>
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#include <cyg/infra/cyg_type.h>
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#include <cyg/infra/cyg_trac.h> // tracing macros
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#include <cyg/infra/cyg_ass.h> // assertion macros
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#include <cyg/hal/hal_arch.h> // HAL header
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#include <cyg/hal/hal_intr.h> // HAL header
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#include <cyg/hal/hal_if.h> // HAL header
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//==========================================================================
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// Clock Initialization values
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLOCK
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#define CLKx_SRC_CLKA 0
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#define CLKx_SRC_CLKB 1
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#define CLKx_SRC_CLKC 2
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#define CLKx_SRC_CLKGA 3
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#define CLKx_SRC_CLKGB 4
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#define CLKx_SRC_CLKGC 5
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#define CLKx_SRC_CLKGINT 6
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#define CLKx_SRC_UIN 0
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#define CLKx_SRC_DIP 1
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#define CLKx_SRC_UIP 4
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#define CLKx_SRC_GLxINT 5
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#define CLKx_SRC_RCOSC 2
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#define CLKx_SRC_MOSC 6
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#define CLKx_SRC_32KOSC 6
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// Select source of CLKA
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKA_SRC_AUIN
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# define CLKA_SRC_SEL CLKx_SRC_UIN
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#elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKA_SRC_AUIP)
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# define CLKA_SRC_SEL CLKx_SRC_UIP
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#elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKA_SRC_ADIP)
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# define CLKA_SRC_SEL CLKx_SRC_DIP
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#elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKA_SRC_GLAINT)
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# define CLKA_SRC_SEL CLKx_SRC_GLxINT
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#elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKA_SRC_RCOSC)
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# define CLKA_SRC_SEL CLKx_SRC_RCOSC
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#else
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# define CLKA_SRC_SEL CLKx_SRC_MOSC
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#endif
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// Select source of CLKB
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKB
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# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKB_SRC_BUIN
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# define CLKB_SRC_SEL CLKx_SRC_UIN
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKB_SRC_BUIP)
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# define CLKB_SRC_SEL CLKx_SRC_UIP
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKB_SRC_BDIP)
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# define CLKB_SRC_SEL CLKx_SRC_DIP
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKB_SRC_GLBINT)
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# define CLKB_SRC_SEL CLKx_SRC_GLxINT
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKB_SRC_RCOSC)
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# define CLKB_SRC_SEL CLKx_SRC_RCOSC
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# else
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# define CLKB_SRC_SEL CLKx_SRC_MOSC
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# endif
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#endif
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// Select source of CLKC
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKC
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# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKC_SRC_CUIN
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# define CLKC_SRC_SEL CLKx_SRC_UIN
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKC_SRC_CUIP)
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# define CLKC_SRC_SEL CLKx_SRC_UIP
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKC_SRC_CDIP)
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# define CLKC_SRC_SEL CLKx_SRC_DIP
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKC_SRC_GLCINT)
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# define CLKC_SRC_SEL CLKx_SRC_GLxINT
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKC_SRC_RCOSC)
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# define CLKC_SRC_SEL CLKx_SRC_RCOSC
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# else
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# define CLKC_SRC_SEL CLKx_SRC_32KOSC
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# endif
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#endif
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// Select source of CLKGA
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA
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# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_SRC_CLKA
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# define CLKGA_SRC_SEL 1
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_SRC_PLL_VCO0)
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# define CLKGA_SRC_SEL 4
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_SRC_PLL_VCO90)
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# define CLKGA_SRC_SEL 5
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_SRC_PLL_VCO180)
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# define CLKGA_SRC_SEL 6
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_SRC_PLL_VCO270)
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# define CLKGA_SRC_SEL 7
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# else
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# define CLKGA_SRC_SEL 2
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# endif
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#endif
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// Select source of CLKGB
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB
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# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_SRC_CLKB
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# define CLKGB_SRC_SEL 1
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_SRC_CLKGA
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# define CLKGB_SRC_SEL 3
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_SRC_PLL_VCO0)
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# define CLKGB_SRC_SEL 4
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_SRC_PLL_VCO90)
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# define CLKGB_SRC_SEL 5
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_SRC_PLL_VCO180)
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# define CLKGB_SRC_SEL 6
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_SRC_PLL_VCO270)
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# define CLKGB_SRC_SEL 7
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# else
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# define CLKGB_SRC_SEL 2
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# endif
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#endif
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// Select source of CLKGC
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC
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# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_CLKC
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# define CLKGC_SRC_SEL 1
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_CLKGA)
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# define CLKGC_SRC_SEL 3
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_PLL_VCO0)
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# define CLKGC_SRC_SEL 4
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_PLL_VCO90)
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# define CLKGC_SRC_SEL 5
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_PLL_VCO180)
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# define CLKGC_SRC_SEL 6
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_PLL_VCO270)
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# define CLKGC_SRC_SEL 7
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# else
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# define CLKGC_SRC_SEL 2
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# endif
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#endif
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#if CYGHWR_HAL_CORTEXM_A2FXXX_PCLK0_DIV == 1
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# define PCLK0DIV 0
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#elif CYGHWR_HAL_CORTEXM_A2FXXX_PCLK0_DIV == 2
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# define PCLK0DIV 1
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#else
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# define PCLK0DIV 2
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#endif
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#if CYGHWR_HAL_CORTEXM_A2FXXX_PCLK1_DIV == 1
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# define PCLK1DIV 0
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#elif CYGHWR_HAL_CORTEXM_A2FXXX_PCLK1_DIV == 2
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# define PCLK1DIV 1
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#else
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# define PCLK1DIV 2
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#endif
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_ACE_CLK
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# if CYGHWR_HAL_CORTEXM_A2FXXX_ACLK_DIV == 1
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# define ACLKDIV 0
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# elif CYGHWR_HAL_CORTEXM_A2FXXX_ACLK_DIV == 2
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# define ACLKDIV 1
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# else
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# define ACLKDIV 2
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# endif
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#endif
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#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_PLL
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# if CYGHWR_HAL_CORTEXM_A2FXXX_PLL_FREQ < 43750000
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# define PLL_RANGE 0
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# elif CYGHWR_HAL_CORTEXM_A2FXXX_PLL_FREQ < 87500000
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# define PLL_RANGE 1
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# elif CYGHWR_HAL_CORTEXM_A2FXXX_PLL_FREQ < 175000000
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# define PLL_RANGE 2
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# else
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# define PLL_RANGE 3
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# endif
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#endif
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#define OXDIV_CLEAR 0x1F
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#define OXMUX_CLEAR 0x07
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#define DLYX_CLEAR 0x1F
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#define DIV_CLEAR 0x03
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#endif // CYGHWR_HAL_CORTEXM_A2FXXX_CLOCK
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//==========================================================================
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// IO settings
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#ifdef CYGPKG_HAL_CORTEXM_A2FXXX_IO
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# if defined(CYGHWR_HAL_CORTEXM_A2FXXX_IO_WEST_BANK_LVCMOS_3V3)
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# define IO_WEST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTWEST(LVCMOS_3V3)
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_IO_WEST_BANK_LVCMOS_2V5)
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# define IO_WEST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTWEST(LVCMOS_2V5)
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_IO_WEST_BANK_LVCMOS_1V8)
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# define IO_WEST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTWEST(LVCMOS_1V8)
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# else
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# define IO_WEST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTWEST(LVCMOS_1V5)
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# endif
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# if defined(CYGHWR_HAL_CORTEXM_A2FXXX_IO_EAST_BANK_LVCMOS_3V3)
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# define IO_EAST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTEAST(LVCMOS_3V3)
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_IO_EAST_BANK_LVCMOS_2V5)
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# define IO_EAST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTEAST(LVCMOS_2V5)
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# elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_IO_EAST_BANK_LVCMOS_1V8)
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# define IO_EAST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTEAST(LVCMOS_1V8)
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# else
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# define IO_EAST_BANK CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR_BTEAST(LVCMOS_1V5)
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# endif
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#endif // CYGPKG_HAL_CORTEXM_A2FXXX_IO
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#ifdef CYGSEM_HAL_CORTEXM_A2FXXX_CLOCK_CHATTER
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# define A2FXXX_CLOCK_TRACE(args...) diag_printf(args)
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#else
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# define A2FXXX_CLOCK_TRACE(args...) /* NOOP */
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#endif
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//==========================================================================
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// Clock frequencies
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//
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// These are set to the frequencies of the various system clocks.
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cyg_uint32 hal_a2fxxx_pclk0; // Peripheral clock (connected to APB_0)
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cyg_uint32 hal_a2fxxx_pclk1; // Peripheral clock (connected to APB_1)
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cyg_uint32 hal_a2fxxx_aclk; // Analog Peripheral clock (ADC /DAC etc..)
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cyg_uint32 hal_a2fxxx_pclk_fpga; // FPGA clock
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cyg_uint32 hal_a2fxxx_glb; // Global Clock B
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cyg_uint32 hal_a2fxxx_glc; // Global Clock C
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cyg_uint32 hal_cortexm_systick_clock; // NGMUx output or FCLK or SysTick clock
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cyg_uint32 hal_a2fxxx_fclk; // FCLK
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//==========================================================================
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// Local prototypes
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static void hal_a2fxxx_clk_network_chatter( cyg_uint8 );
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static cyg_uint8 hal_start_clocks( void );
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|
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static cyg_uint8 hal_a2fxxx_get_system_boot_clk( void );
|
304 |
|
|
|
305 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLOCK
|
306 |
|
|
static void hal_a2fxxx_set_clk_network( void );
|
307 |
|
|
static void hal_a2fxxx_set_envm_timing( void );
|
308 |
|
|
static void hal_a2fxxx_set_clkx( cyg_uint8 x, cyg_uint8 src );
|
309 |
|
|
static void hal_a2fxxx_set_clkgx( cyg_uint8 x );
|
310 |
|
|
static void hal_a2fxxx_set_clkgx_default( cyg_uint8 x );
|
311 |
|
|
static void hal_a2fxxx_set_ngmux( cyg_uint8 );
|
312 |
|
|
static cyg_uint8 hal_a2fxxx_get_ngmux( void );
|
313 |
|
|
|
314 |
|
|
# if defined(CYGHWR_HAL_CORTEXM_A2FXXX_PLL)
|
315 |
|
|
static inline void hal_a2fxxx_set_pll( void );
|
316 |
|
|
# endif
|
317 |
|
|
#endif
|
318 |
|
|
|
319 |
|
|
|
320 |
|
|
//==========================================================================
|
321 |
|
|
|
322 |
|
|
void
|
323 |
|
|
hal_variant_init( void )
|
324 |
|
|
{
|
325 |
|
|
#if !defined(CYG_HAL_STARTUP_RAM)
|
326 |
|
|
cyg_uint8 sysboot_miss;
|
327 |
|
|
#endif
|
328 |
|
|
cyg_uint32 base = CYGHWR_HAL_A2FXXX_WD;
|
329 |
|
|
|
330 |
|
|
// Disable Watch-dog
|
331 |
|
|
HAL_WRITE_UINT32(base + CYGHWR_HAL_A2FXXX_WD_ENABLE,
|
332 |
|
|
CYGHWR_HAL_A2FXXX_WD_DISABLE_KEY);
|
333 |
|
|
|
334 |
|
|
#if !defined(CYG_HAL_STARTUP_RAM)
|
335 |
|
|
sysboot_miss = hal_start_clocks();
|
336 |
|
|
#endif
|
337 |
|
|
|
338 |
|
|
// Release GPIO
|
339 |
|
|
CYGHWR_HAL_A2FXXX_PERIPH_RELEASE( CYGHWR_HAL_A2FXXX_PERIPH_SOFTRST(GPIO) );
|
340 |
|
|
|
341 |
|
|
// Setup IO banks
|
342 |
|
|
#ifdef CYGPKG_HAL_CORTEXM_A2FXXX_IO
|
343 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_MSS_IO_BANK_CR, (IO_WEST_BANK | IO_EAST_BANK) );
|
344 |
|
|
#endif
|
345 |
|
|
|
346 |
|
|
// Reset UART0
|
347 |
|
|
#if CYGINT_HAL_A2FXXX_UART0>0
|
348 |
|
|
CYGHWR_HAL_A2FXXX_PERIPH_RELEASE( CYGHWR_HAL_A2FXXX_PERIPH_SOFTRST(UART0) );
|
349 |
|
|
#endif
|
350 |
|
|
|
351 |
|
|
// Reset UART1
|
352 |
|
|
#if CYGINT_HAL_A2FXXX_UART1>0
|
353 |
|
|
CYGHWR_HAL_A2FXXX_PERIPH_RELEASE( CYGHWR_HAL_A2FXXX_PERIPH_SOFTRST(UART1) );
|
354 |
|
|
#endif
|
355 |
|
|
|
356 |
|
|
#ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
|
357 |
|
|
hal_if_init();
|
358 |
|
|
#endif
|
359 |
|
|
|
360 |
|
|
#if !defined(CYG_HAL_STARTUP_RAM)
|
361 |
|
|
hal_a2fxxx_clk_network_chatter( sysboot_miss );
|
362 |
|
|
#endif
|
363 |
|
|
}
|
364 |
|
|
|
365 |
|
|
//==========================================================================
|
366 |
|
|
// Setup up system clocks
|
367 |
|
|
//
|
368 |
|
|
// Set up clocks from configuration. In the future this should be extended so
|
369 |
|
|
// that clock rates can be changed at runtime.
|
370 |
|
|
|
371 |
|
|
static cyg_uint8
|
372 |
|
|
hal_start_clocks( void )
|
373 |
|
|
{
|
374 |
|
|
if( ! hal_a2fxxx_get_system_boot_clk( ) )
|
375 |
|
|
return 0;
|
376 |
|
|
|
377 |
|
|
//
|
378 |
|
|
// User has chosen to re-configure the clock network and
|
379 |
|
|
// overwrite the settings provided by the system boot
|
380 |
|
|
//
|
381 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLOCK
|
382 |
|
|
hal_a2fxxx_set_clk_network( );
|
383 |
|
|
|
384 |
|
|
// Adjust the ENVM timing according to the core clock
|
385 |
|
|
// frequency
|
386 |
|
|
hal_a2fxxx_set_envm_timing( );
|
387 |
|
|
#endif
|
388 |
|
|
|
389 |
|
|
return 1;
|
390 |
|
|
}
|
391 |
|
|
|
392 |
|
|
|
393 |
|
|
//==========================================================================
|
394 |
|
|
// Read clock configuration as setup by the system boot
|
395 |
|
|
|
396 |
|
|
static cyg_uint8
|
397 |
|
|
hal_a2fxxx_get_system_boot_clk( void )
|
398 |
|
|
{
|
399 |
|
|
cyg_uint32 sysboot_key, sysboot_ver, clk_cr, clkga0;
|
400 |
|
|
|
401 |
|
|
sysboot_ver = CYGHWR_HAL_A2FXXX_GET_SYSBOOT_VERSION();
|
402 |
|
|
sysboot_key = CYGHWR_HAL_A2FXXX_GET_SYSBOOT_KEY();
|
403 |
|
|
|
404 |
|
|
// Verify that the system boot is present, if not we must give up?
|
405 |
|
|
if( CYGHWR_HAL_A2FXXX_ENVM_SPARE_PAGES_SYSBOOT_KEY_VALUE
|
406 |
|
|
!= sysboot_key )
|
407 |
|
|
return 0;
|
408 |
|
|
|
409 |
|
|
// Read the MSS CLGA0 frequency value. Address varies with system boot
|
410 |
|
|
// version
|
411 |
|
|
if ( sysboot_ver < CYGHWR_HAL_A2FXXX_SYSBOOT_VERSION(2, 0, 0) ) {
|
412 |
|
|
clkga0 = CYGHWR_HAL_A2FXXX_GET_SYSBOOT_1_3_FCLK();
|
413 |
|
|
}
|
414 |
|
|
else {
|
415 |
|
|
clkga0 = CYGHWR_HAL_A2FXXX_GET_SYSBOOT_2_0_FCLK();
|
416 |
|
|
}
|
417 |
|
|
|
418 |
|
|
// Compute the BUS and fabric clock frequency
|
419 |
|
|
hal_cortexm_systick_clock = clkga0;
|
420 |
|
|
|
421 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC + CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR, clk_cr);
|
422 |
|
|
|
423 |
|
|
hal_a2fxxx_pclk0 =
|
424 |
|
|
clkga0 >> CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_GET_PCLK0DIV( clk_cr );
|
425 |
|
|
hal_a2fxxx_pclk1 =
|
426 |
|
|
clkga0 >> CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_GET_PCLK1DIV( clk_cr );
|
427 |
|
|
hal_a2fxxx_pclk_fpga =
|
428 |
|
|
clkga0 >> CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_GET_GLBDIV( clk_cr );
|
429 |
|
|
|
430 |
|
|
return 1;
|
431 |
|
|
}
|
432 |
|
|
|
433 |
|
|
|
434 |
|
|
//==========================================================================
|
435 |
|
|
// Chatter function
|
436 |
|
|
|
437 |
|
|
static void
|
438 |
|
|
hal_a2fxxx_clk_network_chatter( cyg_uint8 hal_clk_network_chatter )
|
439 |
|
|
{
|
440 |
|
|
if ( hal_clk_network_chatter == 0 )
|
441 |
|
|
diag_printf("Actel System Boot Missing\n Clock network configuration failed!!\n");
|
442 |
|
|
|
443 |
|
|
A2FXXX_CLOCK_TRACE("Device clock network configuration:\n");
|
444 |
|
|
A2FXXX_CLOCK_TRACE("Global Clock A (Systick): %d [Hz]\n",
|
445 |
|
|
hal_cortexm_systick_clock);
|
446 |
|
|
A2FXXX_CLOCK_TRACE("PCLK0: %d [Hz]\n", hal_a2fxxx_pclk0);
|
447 |
|
|
A2FXXX_CLOCK_TRACE("PCLK1: %d [Hz]\n", hal_a2fxxx_pclk1);
|
448 |
|
|
}
|
449 |
|
|
|
450 |
|
|
|
451 |
|
|
//==========================================================================
|
452 |
|
|
// Setup device clock network
|
453 |
|
|
|
454 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLOCK
|
455 |
|
|
|
456 |
|
|
static void
|
457 |
|
|
hal_a2fxxx_set_clk_network( void )
|
458 |
|
|
{
|
459 |
|
|
cyg_uint32 mss_ccc_mux;
|
460 |
|
|
cyg_uint32 mss_clk_cr;
|
461 |
|
|
cyg_uint8 ngmux;
|
462 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_PLL
|
463 |
|
|
cyg_bool pll = false;
|
464 |
|
|
#endif
|
465 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKA
|
466 |
|
|
cyg_bool clka = false;
|
467 |
|
|
#endif
|
468 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKC
|
469 |
|
|
cyg_bool clkc = false;
|
470 |
|
|
#endif
|
471 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA
|
472 |
|
|
cyg_bool clkga = false;
|
473 |
|
|
#endif
|
474 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC
|
475 |
|
|
cyg_bool clkgc = false;
|
476 |
|
|
#endif
|
477 |
|
|
|
478 |
|
|
// Find out which CLKGx is currently used as FLCK
|
479 |
|
|
ngmux = hal_a2fxxx_get_ngmux( );
|
480 |
|
|
|
481 |
|
|
//
|
482 |
|
|
// Start by configuring NGMUX. In the following case, if
|
483 |
|
|
// the current NGMUX output is already CLKGA, first move
|
484 |
|
|
// to CLKGC to keep a stable ground otherwise go ahead and
|
485 |
|
|
// configure CLKGA.
|
486 |
|
|
//
|
487 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_NGMUX_CLKOUT_CLKGA
|
488 |
|
|
if( ngmux == CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GLA )
|
489 |
|
|
{
|
490 |
|
|
// Setup CLKGC to use the On-Chip RC oscillator and move
|
491 |
|
|
// the MSS clock to CLKGC. No division factor is applied
|
492 |
|
|
// therefore FCLK = 100MHz
|
493 |
|
|
|
494 |
|
|
// CLKC = RCOSC
|
495 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKC, CLKx_SRC_RCOSC );
|
496 |
|
|
|
497 |
|
|
// CLKGC = CLKC
|
498 |
|
|
hal_a2fxxx_set_clkgx_default( CLKx_SRC_CLKGC );
|
499 |
|
|
|
500 |
|
|
// FCLK = CLKGC
|
501 |
|
|
hal_a2fxxx_set_ngmux( CLKx_SRC_CLKGC );
|
502 |
|
|
}
|
503 |
|
|
else {
|
504 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
505 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
506 |
|
|
mss_ccc_mux &= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OCMUX(OXMUX_CLEAR);
|
507 |
|
|
mss_ccc_mux = mss_ccc_mux >> 19;
|
508 |
|
|
|
509 |
|
|
// Make sure PLL is bypassed.
|
510 |
|
|
if ( mss_ccc_mux != 1 ){
|
511 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKC, CLKx_SRC_RCOSC );
|
512 |
|
|
hal_a2fxxx_set_clkgx_default( CLKx_SRC_CLKGC );
|
513 |
|
|
}
|
514 |
|
|
}
|
515 |
|
|
|
516 |
|
|
// Now we can configure CLKGA as specified by the
|
517 |
|
|
// user. Check is PLL should be configured.
|
518 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKA, CLKA_SRC_SEL );
|
519 |
|
|
|
520 |
|
|
# if defined(CYGHWR_HAL_CORTEXM_A2FXXX_PLL)
|
521 |
|
|
hal_a2fxxx_set_pll( );
|
522 |
|
|
pll = true;
|
523 |
|
|
# endif
|
524 |
|
|
|
525 |
|
|
// Move to CLKGA
|
526 |
|
|
hal_a2fxxx_set_clkgx( CLKx_SRC_CLKGA );
|
527 |
|
|
clka = clkga = true;
|
528 |
|
|
hal_a2fxxx_set_ngmux( CLKx_SRC_CLKGA );
|
529 |
|
|
|
530 |
|
|
#endif // CYGHWR_HAL_CORTEXM_A2FXXX_NGMUX_CLKOUT_CLKGA
|
531 |
|
|
|
532 |
|
|
|
533 |
|
|
//
|
534 |
|
|
// In the following case, NGMUX is configured to use CLKGC.
|
535 |
|
|
// This can be tricky as CLKGC can be routed from CLKGA...
|
536 |
|
|
//
|
537 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_NGMUX_CLKOUT_CLKGC
|
538 |
|
|
|
539 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
540 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
541 |
|
|
mss_ccc_mux &= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OCMUX(OXMUX_CLEAR);
|
542 |
|
|
mss_ccc_mux = mss_ccc_mux >> 19;
|
543 |
|
|
|
544 |
|
|
// If CLKGC is not routed form CLKC or if CLKGC is not used
|
545 |
|
|
// as NGMUX output, proceed to configure CLKGC = CLKC
|
546 |
|
|
if( ((ngmux == CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GLC) && (mss_ccc_mux != 1)) ||
|
547 |
|
|
(ngmux == CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GLA) )
|
548 |
|
|
{
|
549 |
|
|
|
550 |
|
|
// Set CLKC source, use on-chip oscillator as default
|
551 |
|
|
// value
|
552 |
|
|
# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_CLKC
|
553 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKC, CLKC_SRC_SEL );
|
554 |
|
|
clkc = true;
|
555 |
|
|
# else
|
556 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKC, CLKx_SRC_RCOSC );
|
557 |
|
|
# endif
|
558 |
|
|
|
559 |
|
|
// Set CLKGC = CLKC
|
560 |
|
|
hal_a2fxxx_set_clkgx_default( CLKx_SRC_CLKGC );
|
561 |
|
|
|
562 |
|
|
// Set NGMUX = CLKGC
|
563 |
|
|
hal_a2fxxx_set_ngmux( CLKx_SRC_CLKGC );
|
564 |
|
|
|
565 |
|
|
// Configure PLL input if in use
|
566 |
|
|
# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_PLL
|
567 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKA, CLKA_SRC_SEL );
|
568 |
|
|
clka = true;
|
569 |
|
|
# endif
|
570 |
|
|
|
571 |
|
|
}
|
572 |
|
|
else {
|
573 |
|
|
|
574 |
|
|
// Set CLKA source, use on-chip oscillator as default
|
575 |
|
|
// value
|
576 |
|
|
# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKA
|
577 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKA, CLKA_SRC_SEL );
|
578 |
|
|
clka = true;
|
579 |
|
|
# else
|
580 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKA, CLKx_SRC_RCOSC );
|
581 |
|
|
# endif
|
582 |
|
|
|
583 |
|
|
# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_SRC_CLKC
|
584 |
|
|
// CLKGA = CLKA
|
585 |
|
|
hal_a2fxxx_set_clkgx_default( CLKx_SRC_CLKGA );
|
586 |
|
|
|
587 |
|
|
// Move NGMUX = CLKGA
|
588 |
|
|
hal_a2fxxx_set_ngmux( CLKx_SRC_CLKGA );
|
589 |
|
|
|
590 |
|
|
// Now we can Configure CLKC
|
591 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKC, CLKC_SRC_SEL );
|
592 |
|
|
# endif
|
593 |
|
|
|
594 |
|
|
}
|
595 |
|
|
|
596 |
|
|
# ifdef CYGHWR_HAL_CORTEXM_A2FXXX_PLL
|
597 |
|
|
hal_a2fxxx_set_pll( );
|
598 |
|
|
pll = true;
|
599 |
|
|
# endif
|
600 |
|
|
|
601 |
|
|
clkgc = true;
|
602 |
|
|
hal_a2fxxx_set_clkgx( CLKx_SRC_CLKGC );
|
603 |
|
|
hal_a2fxxx_set_ngmux( CLKx_SRC_CLKGC );
|
604 |
|
|
|
605 |
|
|
#endif // CYGHWR_HAL_CORTEXM_A2FXXX_NGMUX_CLKOUT_CLKGC
|
606 |
|
|
|
607 |
|
|
|
608 |
|
|
// Configure CLKA
|
609 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKA
|
610 |
|
|
if ( clka == false ){
|
611 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKA, CLKA_SRC_SEL );
|
612 |
|
|
}
|
613 |
|
|
#endif
|
614 |
|
|
|
615 |
|
|
// Configure the PLL
|
616 |
|
|
#if defined(CYGHWR_HAL_CORTEXM_A2FXXX_PLL)
|
617 |
|
|
if ( pll == false ){
|
618 |
|
|
hal_a2fxxx_set_pll( );
|
619 |
|
|
}
|
620 |
|
|
#endif
|
621 |
|
|
|
622 |
|
|
// Configure CLKB
|
623 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKB
|
624 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKB, CLKB_SRC_SEL );
|
625 |
|
|
#endif
|
626 |
|
|
|
627 |
|
|
// Configure CLKC
|
628 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKC
|
629 |
|
|
if ( clkc == false ){
|
630 |
|
|
hal_a2fxxx_set_clkx( CLKx_SRC_CLKC, CLKC_SRC_SEL );
|
631 |
|
|
}
|
632 |
|
|
#endif
|
633 |
|
|
|
634 |
|
|
// Configure CLKGA
|
635 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA
|
636 |
|
|
if ( clkga == false ){
|
637 |
|
|
hal_a2fxxx_set_clkgx( CLKx_SRC_CLKA );
|
638 |
|
|
}
|
639 |
|
|
#endif
|
640 |
|
|
|
641 |
|
|
// Configure CLKGB
|
642 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB
|
643 |
|
|
hal_a2fxxx_set_clkgx( CLKx_SRC_CLKB );
|
644 |
|
|
#endif
|
645 |
|
|
|
646 |
|
|
// Configure CLKGC
|
647 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC
|
648 |
|
|
if ( clkgc == false ){
|
649 |
|
|
hal_a2fxxx_set_clkgx( CLKx_SRC_CLKC );
|
650 |
|
|
}
|
651 |
|
|
#endif
|
652 |
|
|
|
653 |
|
|
// Now, configure all MSS clock dividers
|
654 |
|
|
//
|
655 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
656 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
657 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
658 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR, mss_clk_cr);
|
659 |
|
|
|
660 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_ACE_CLK
|
661 |
|
|
mss_clk_cr &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_ACLKDIV(DIV_CLEAR) );
|
662 |
|
|
mss_clk_cr |= ( CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_ACLKDIV(ACLKDIV) );
|
663 |
|
|
#endif
|
664 |
|
|
|
665 |
|
|
mss_clk_cr &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_PCLK1DIV(DIV_CLEAR) |
|
666 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_PCLK0DIV(DIV_CLEAR) );
|
667 |
|
|
|
668 |
|
|
mss_clk_cr |= ( CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_PCLK1DIV(PCLK1DIV) |
|
669 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_PCLK0DIV(PCLK0DIV) );
|
670 |
|
|
|
671 |
|
|
// Record the different clock frequencies
|
672 |
|
|
hal_cortexm_systick_clock = CYGHWR_HAL_CORTEXM_A2FXXX_NGMUX_CLKOUT_FREQ;
|
673 |
|
|
hal_a2fxxx_fclk = CYGHWR_HAL_CORTEXM_A2FXXX_NGMUX_CLKOUT_FREQ;
|
674 |
|
|
hal_a2fxxx_pclk0 = CYGHWR_HAL_CORTEXM_A2FXXX_PCLK0_FREQ;
|
675 |
|
|
hal_a2fxxx_pclk1 = CYGHWR_HAL_CORTEXM_A2FXXX_PCLK1_FREQ;
|
676 |
|
|
|
677 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_FAB_CLK
|
678 |
|
|
hal_a2fxxx_pclk_fpga = CYGHWR_HAL_CORTEXM_A2FXXX_FAB_CLK_FREQ;
|
679 |
|
|
#endif
|
680 |
|
|
|
681 |
|
|
// Configure the MAC clock
|
682 |
|
|
#if defined(CYGHWR_HAL_CORTEXM_A2FXXX_MAC_CLK) && \
|
683 |
|
|
defined(CYGHWR_HAL_CORTEXM_A2FXXX_MAC_SRC_CLKGC)
|
684 |
|
|
|
685 |
|
|
mss_clk_cr |= CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_RMIICLKSEL;
|
686 |
|
|
|
687 |
|
|
#elif defined(CYGHWR_HAL_CORTEXM_A2FXXX_MAC_CLK) && \
|
688 |
|
|
defined(CYGHWR_HAL_CORTEXM_A2FXXX_MAC_SRC_EXTERNAL)
|
689 |
|
|
|
690 |
|
|
mss_clk_cr &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR_RMIICLKSEL;
|
691 |
|
|
|
692 |
|
|
#endif
|
693 |
|
|
|
694 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC + CYGHWR_HAL_A2FXXX_SC_MSS_CLK_CR,
|
695 |
|
|
mss_clk_cr);
|
696 |
|
|
|
697 |
|
|
// PLL is disable if not in used
|
698 |
|
|
#if !defined(CYGHWR_HAL_CORTEXM_A2FXXX_PLL)
|
699 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
700 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR, 0x0);
|
701 |
|
|
#endif
|
702 |
|
|
}
|
703 |
|
|
|
704 |
|
|
|
705 |
|
|
//==========================================================================
|
706 |
|
|
// Get / Set NGMUX settings
|
707 |
|
|
|
708 |
|
|
static cyg_uint8
|
709 |
|
|
hal_a2fxxx_get_ngmux( void )
|
710 |
|
|
{
|
711 |
|
|
cyg_uint32 mss_ccc_mux;
|
712 |
|
|
cyg_uint8 ngmux_setting;
|
713 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
714 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
715 |
|
|
|
716 |
|
|
mss_ccc_mux = mss_ccc_mux >> 24;
|
717 |
|
|
switch( mss_ccc_mux & 0xf ){
|
718 |
|
|
case 0:
|
719 |
|
|
case 2:
|
720 |
|
|
case 4:
|
721 |
|
|
case 6:
|
722 |
|
|
case 12:
|
723 |
|
|
ngmux_setting = CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GLA;
|
724 |
|
|
break;
|
725 |
|
|
case 1:
|
726 |
|
|
case 3:
|
727 |
|
|
case 8:
|
728 |
|
|
case 10:
|
729 |
|
|
case 13:
|
730 |
|
|
ngmux_setting = CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GLC;
|
731 |
|
|
break;
|
732 |
|
|
case 5:
|
733 |
|
|
case 7:
|
734 |
|
|
case 9:
|
735 |
|
|
case 11:
|
736 |
|
|
case 14:
|
737 |
|
|
ngmux_setting = CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GLINT;
|
738 |
|
|
break;
|
739 |
|
|
default:
|
740 |
|
|
ngmux_setting = CYGHWR_HAL_A2FXXX_SC_MSS_CCC_GLMUX_GND;
|
741 |
|
|
break;
|
742 |
|
|
}
|
743 |
|
|
|
744 |
|
|
return ngmux_setting;
|
745 |
|
|
}
|
746 |
|
|
|
747 |
|
|
|
748 |
|
|
static void
|
749 |
|
|
hal_a2fxxx_set_ngmux( cyg_uint8 x )
|
750 |
|
|
{
|
751 |
|
|
cyg_uint32 mss_ccc_mux;
|
752 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
753 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
754 |
|
|
|
755 |
|
|
// Clear bits
|
756 |
|
|
mss_ccc_mux &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXSEL(0x3) |
|
757 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXCFG(0x3) );
|
758 |
|
|
|
759 |
|
|
if( x == CLKx_SRC_CLKGA ){
|
760 |
|
|
mss_ccc_mux |= ( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXSEL(0) |
|
761 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXCFG(0) );
|
762 |
|
|
}
|
763 |
|
|
else if (x == CLKx_SRC_CLKGC ){
|
764 |
|
|
mss_ccc_mux |= ( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXSEL(1) |
|
765 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXCFG(0) );
|
766 |
|
|
}
|
767 |
|
|
else{
|
768 |
|
|
mss_ccc_mux |= ( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXSEL(2) |
|
769 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_GLMUXCFG(3) );
|
770 |
|
|
}
|
771 |
|
|
|
772 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
773 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
774 |
|
|
}
|
775 |
|
|
|
776 |
|
|
|
777 |
|
|
//==========================================================================
|
778 |
|
|
// Setup PLL
|
779 |
|
|
|
780 |
|
|
#if defined(CYGHWR_HAL_CORTEXM_A2FXXX_PLL)
|
781 |
|
|
static inline void
|
782 |
|
|
hal_a2fxxx_set_pll( void )
|
783 |
|
|
{
|
784 |
|
|
cyg_uint32 x =
|
785 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_FINDIV((CYGHWR_HAL_CORTEXM_A2FXXX_PLL_DIV-1)) |
|
786 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_FBDIV((CYGHWR_HAL_CORTEXM_A2FXXX_PLL_MULT-1)) |
|
787 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_FBSEL(1) |
|
788 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_FBDLY(CYGHWR_HAL_CORTEXM_A2FXXX_PLL_FB_DELAY) |
|
789 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_VCOSEL0 |
|
790 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_VCOSEL2_1(PLL_RANGE) |
|
791 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR_PLLEN;
|
792 |
|
|
|
793 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC + CYGHWR_HAL_A2FXXX_SC_MSS_CCC_PLL_CR, x);
|
794 |
|
|
|
795 |
|
|
// Wait PLL lock
|
796 |
|
|
do {
|
797 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC + CYGHWR_HAL_A2FXXX_SC_MSS_CCC_SR, x);
|
798 |
|
|
} while( (x & CYGHWR_HAL_A2FXXX_SC_MSS_CCC_SR_PLL_LOCK_SYNC) == 0);
|
799 |
|
|
}
|
800 |
|
|
#endif
|
801 |
|
|
|
802 |
|
|
|
803 |
|
|
//==========================================================================
|
804 |
|
|
// Setup CLKA, CLKB or CLKC input clock
|
805 |
|
|
|
806 |
|
|
static void
|
807 |
|
|
hal_a2fxxx_set_clkx( cyg_uint8 x, cyg_uint8 src )
|
808 |
|
|
{
|
809 |
|
|
cyg_uint32 mss_ccc_mux;
|
810 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
811 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
812 |
|
|
if( x == CLKx_SRC_CLKA ){
|
813 |
|
|
mss_ccc_mux &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_DYNASEL |
|
814 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_RXASEL |
|
815 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_STATASEL );
|
816 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_CLKA_SEL (src);
|
817 |
|
|
}
|
818 |
|
|
else if (x == CLKx_SRC_CLKB ){
|
819 |
|
|
mss_ccc_mux &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_DYNBSEL |
|
820 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_RXBSEL |
|
821 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_STATBSEL );
|
822 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_CLKB_SEL (src);
|
823 |
|
|
}
|
824 |
|
|
else{
|
825 |
|
|
mss_ccc_mux &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_DYNCSEL |
|
826 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_RXCSEL |
|
827 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_STATCSEL );
|
828 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_CLKC_SEL (src);
|
829 |
|
|
}
|
830 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
831 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
832 |
|
|
}
|
833 |
|
|
|
834 |
|
|
|
835 |
|
|
//==========================================================================
|
836 |
|
|
// Setup CLKGA, CLKGB or CLKGC output clock
|
837 |
|
|
|
838 |
|
|
static void
|
839 |
|
|
hal_a2fxxx_set_clkgx( cyg_uint8 x )
|
840 |
|
|
{
|
841 |
|
|
cyg_uint32 mss_ccc_mux;
|
842 |
|
|
cyg_uint32 mss_ccc_dly;
|
843 |
|
|
cyg_uint32 mss_ccc_div;
|
844 |
|
|
cyg_uint8 div10;
|
845 |
|
|
cyg_uint8 div;
|
846 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
847 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
848 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
849 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR, mss_ccc_dly);
|
850 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
851 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR, mss_ccc_div);
|
852 |
|
|
|
853 |
|
|
if( x == CLKx_SRC_CLKGA ){
|
854 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA
|
855 |
|
|
// Clear bits
|
856 |
|
|
mss_ccc_div &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OADIV(OXDIV_CLEAR) |
|
857 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OADIVHALF );
|
858 |
|
|
mss_ccc_dly &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYA(DLYX_CLEAR);
|
859 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OAMUX(OXMUX_CLEAR);
|
860 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSA;
|
861 |
|
|
// Compute divider
|
862 |
|
|
div10 = CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_DIV10;
|
863 |
|
|
div = (cyg_uint8) CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_DIV;
|
864 |
|
|
if( div10 % 10 ){
|
865 |
|
|
div += 1;
|
866 |
|
|
mss_ccc_div |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OADIVHALF;
|
867 |
|
|
}
|
868 |
|
|
else {
|
869 |
|
|
div -= 1;
|
870 |
|
|
}
|
871 |
|
|
// CLKA = CLGA, bypass MUX
|
872 |
|
|
if (div == 0 && CLKGA_SRC_SEL == 1) {
|
873 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSA;
|
874 |
|
|
}
|
875 |
|
|
else {
|
876 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OAMUX(CLKGA_SRC_SEL);
|
877 |
|
|
mss_ccc_div |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OADIV(div);
|
878 |
|
|
}
|
879 |
|
|
mss_ccc_dly |=
|
880 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYA(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGA_DELAY);
|
881 |
|
|
#endif
|
882 |
|
|
}
|
883 |
|
|
if ( x == CLKx_SRC_CLKGB ){
|
884 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB
|
885 |
|
|
// Clear bits
|
886 |
|
|
mss_ccc_div &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OBDIV(OXDIV_CLEAR) |
|
887 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OBDIVHALF );
|
888 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OBMUX(OXMUX_CLEAR);
|
889 |
|
|
mss_ccc_dly &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYB(DLYX_CLEAR);
|
890 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSB;
|
891 |
|
|
// Compute divider
|
892 |
|
|
div10 = CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_DIV10;
|
893 |
|
|
div = (cyg_uint8) CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_DIV;
|
894 |
|
|
if( div10 % 10 ){
|
895 |
|
|
div += 1;
|
896 |
|
|
mss_ccc_div |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OBDIVHALF;
|
897 |
|
|
}
|
898 |
|
|
else {
|
899 |
|
|
div -= 1;
|
900 |
|
|
}
|
901 |
|
|
// CLKB = CLGB, bypass MUX
|
902 |
|
|
if (div == 0 && CLKGB_SRC_SEL == 1) {
|
903 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSB;
|
904 |
|
|
}
|
905 |
|
|
else {
|
906 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OBMUX(CLKGB_SRC_SEL);
|
907 |
|
|
mss_ccc_div |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OBDIV(div);
|
908 |
|
|
mss_ccc_dly |=
|
909 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYB(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGB_DELAY);
|
910 |
|
|
}
|
911 |
|
|
#endif
|
912 |
|
|
}
|
913 |
|
|
if ( x == CLKx_SRC_CLKGC ){
|
914 |
|
|
#ifdef CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC
|
915 |
|
|
// Clear bits
|
916 |
|
|
mss_ccc_div &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OCDIV(OXDIV_CLEAR) |
|
917 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OCDIVHALF );
|
918 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OCMUX(OXMUX_CLEAR);
|
919 |
|
|
mss_ccc_dly &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYC(DLYX_CLEAR);
|
920 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSC;
|
921 |
|
|
// Compute divider
|
922 |
|
|
div10 = CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_DIV10;
|
923 |
|
|
div = (cyg_uint8) CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_DIV;
|
924 |
|
|
if( div10 % 10 ){
|
925 |
|
|
div += 1;
|
926 |
|
|
mss_ccc_div |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OCDIVHALF;
|
927 |
|
|
}
|
928 |
|
|
else {
|
929 |
|
|
div -= 1;
|
930 |
|
|
}
|
931 |
|
|
// CLKC = CLGC, bypass MUX
|
932 |
|
|
if (div == 0 && CLKGC_SRC_SEL == 1) {
|
933 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSC;
|
934 |
|
|
}
|
935 |
|
|
else {
|
936 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OCMUX(CLKGC_SRC_SEL);
|
937 |
|
|
mss_ccc_div |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OCDIV(div);
|
938 |
|
|
}
|
939 |
|
|
mss_ccc_dly |=
|
940 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYC(CYGHWR_HAL_CORTEXM_A2FXXX_CLKGC_DELAY);
|
941 |
|
|
#endif
|
942 |
|
|
}
|
943 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
944 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR, mss_ccc_div);
|
945 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
946 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR, mss_ccc_dly);
|
947 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
948 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
949 |
|
|
}
|
950 |
|
|
|
951 |
|
|
//==========================================================================
|
952 |
|
|
// Setup CLKGA CLKGC output clock
|
953 |
|
|
|
954 |
|
|
static void
|
955 |
|
|
hal_a2fxxx_set_clkgx_default( cyg_uint8 x )
|
956 |
|
|
{
|
957 |
|
|
cyg_uint32 mss_ccc_mux;
|
958 |
|
|
cyg_uint32 mss_ccc_dly;
|
959 |
|
|
cyg_uint32 mss_ccc_div;
|
960 |
|
|
|
961 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
962 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
963 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
964 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR, mss_ccc_dly);
|
965 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
966 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR, mss_ccc_div);
|
967 |
|
|
|
968 |
|
|
if( x == CLKx_SRC_CLKGA ){
|
969 |
|
|
// Clear bits
|
970 |
|
|
mss_ccc_div &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OADIV(OXDIV_CLEAR) |
|
971 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OADIVHALF );
|
972 |
|
|
mss_ccc_dly &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYA(DLYX_CLEAR);
|
973 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OAMUX(OXMUX_CLEAR);
|
974 |
|
|
// CLKGA = CLKA, Division factor = 1 and minimum delay of 535ps
|
975 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSA;
|
976 |
|
|
mss_ccc_dly |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYA(0);
|
977 |
|
|
}
|
978 |
|
|
if ( x == CLKx_SRC_CLKGC ){
|
979 |
|
|
// Clear bits
|
980 |
|
|
mss_ccc_div &= ~( CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OCDIV(OXDIV_CLEAR) |
|
981 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR_OCDIVHALF );
|
982 |
|
|
mss_ccc_mux &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_OCMUX(OXMUX_CLEAR);
|
983 |
|
|
mss_ccc_dly &= ~CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYC(DLYX_CLEAR);
|
984 |
|
|
// CLKGC = CLKC, Division factor = 1 and minimum delay of 535ps
|
985 |
|
|
mss_ccc_mux |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR_BYPASSC;
|
986 |
|
|
mss_ccc_dly |= CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR_DLYC(0);
|
987 |
|
|
}
|
988 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
989 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DIV_CR, mss_ccc_div);
|
990 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
991 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_DLY_CR, mss_ccc_dly);
|
992 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
993 |
|
|
CYGHWR_HAL_A2FXXX_SC_MSS_CCC_MUX_CR, mss_ccc_mux);
|
994 |
|
|
}
|
995 |
|
|
|
996 |
|
|
|
997 |
|
|
//==========================================================================
|
998 |
|
|
// Adjust ENVM timing
|
999 |
|
|
|
1000 |
|
|
static void
|
1001 |
|
|
hal_a2fxxx_set_envm_timing( void ) {
|
1002 |
|
|
cyg_uint32 x;
|
1003 |
|
|
HAL_READ_UINT32( CYGHWR_HAL_A2FXXX_SC + CYGHWR_HAL_A2FXXX_SC_ENVM_CR, x);
|
1004 |
|
|
x &= ~CYGHWR_HAL_A2FXXX_SC_ENVM_CR_SIX_CYCLE;
|
1005 |
|
|
if( hal_a2fxxx_fclk <= 80e6 ){
|
1006 |
|
|
x |= CYGHWR_HAL_A2FXXX_SC_ENVM_CR_PIPE_BYPASS;
|
1007 |
|
|
} else {
|
1008 |
|
|
x &= ~CYGHWR_HAL_A2FXXX_SC_ENVM_CR_PIPE_BYPASS;
|
1009 |
|
|
}
|
1010 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC + CYGHWR_HAL_A2FXXX_SC_ENVM_CR, x);
|
1011 |
|
|
}
|
1012 |
|
|
|
1013 |
|
|
#endif // CYGHWR_HAL_CORTEXM_A2FXXX_CLOCK
|
1014 |
|
|
|
1015 |
|
|
|
1016 |
|
|
//==========================================================================
|
1017 |
|
|
// Reset modules
|
1018 |
|
|
|
1019 |
|
|
__externC void
|
1020 |
|
|
hal_a2fxxx_periph_release( cyg_uint32 bit )
|
1021 |
|
|
{
|
1022 |
|
|
cyg_uint32 sc, base = CYGHWR_HAL_A2FXXX_SC;
|
1023 |
|
|
HAL_READ_UINT32( base + CYGHWR_HAL_A2FXXX_SC_CLR_SOFTRST_CR, sc );
|
1024 |
|
|
sc &= ~( bit );
|
1025 |
|
|
HAL_WRITE_UINT32( base + CYGHWR_HAL_A2FXXX_SC_CLR_SOFTRST_CR, sc );
|
1026 |
|
|
}
|
1027 |
|
|
|
1028 |
|
|
|
1029 |
|
|
__externC void
|
1030 |
|
|
hal_a2fxxx_periph_reset( cyg_uint32 bit )
|
1031 |
|
|
{
|
1032 |
|
|
cyg_uint32 sc, base = CYGHWR_HAL_A2FXXX_SC;
|
1033 |
|
|
HAL_READ_UINT32( base + CYGHWR_HAL_A2FXXX_SC_CLR_SOFTRST_CR , sc );
|
1034 |
|
|
sc |= ( bit );
|
1035 |
|
|
HAL_WRITE_UINT32( base + CYGHWR_HAL_A2FXXX_SC_CLR_SOFTRST_CR , sc );
|
1036 |
|
|
}
|
1037 |
|
|
|
1038 |
|
|
|
1039 |
|
|
//==========================================================================
|
1040 |
|
|
// GPIO support
|
1041 |
|
|
//
|
1042 |
|
|
|
1043 |
|
|
const default_io_mux_type default_io_mux[] = {
|
1044 |
|
|
// SPI0
|
1045 |
|
|
{0x00}, {0x0a}, {0x00}, {0x00},
|
1046 |
|
|
// UART0
|
1047 |
|
|
{0x18}, {0x00},
|
1048 |
|
|
// I2C0
|
1049 |
|
|
{0x00}, {0x00},
|
1050 |
|
|
// SPI1
|
1051 |
|
|
{0x00}, {0x0a}, {0x00}, {0x00},
|
1052 |
|
|
// UART1
|
1053 |
|
|
{0x18}, {0x00},
|
1054 |
|
|
// I2C1
|
1055 |
|
|
{0x00}, {0x00},
|
1056 |
|
|
// MAC0
|
1057 |
|
|
{0x18}, {0x18}, {0x0a}, {0x0a}, {0x18}, {0x0a}, {0x0a}, {0x00}, {0x18},
|
1058 |
|
|
// GPIO
|
1059 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1060 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1061 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1062 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1063 |
|
|
// SPI0 CS
|
1064 |
|
|
{0x00}, {0x00}, {0x00},
|
1065 |
|
|
// Unused
|
1066 |
|
|
{0x00}, {0x00}, {0x00}, {0x00},
|
1067 |
|
|
// UART0 misc
|
1068 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1069 |
|
|
// SPI1 CS
|
1070 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1071 |
|
|
// UART1 misc
|
1072 |
|
|
{0x00}, {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
|
1073 |
|
|
{0x0}
|
1074 |
|
|
};
|
1075 |
|
|
|
1076 |
|
|
// These functions provide configuration and IO for GPIO pins.
|
1077 |
|
|
|
1078 |
|
|
__externC void
|
1079 |
|
|
hal_a2fxxx_gpio_set( cyg_uint32 pin )
|
1080 |
|
|
{
|
1081 |
|
|
cyg_uint32 bit = CYGHWR_HAL_A2FXXX_GPIO_BIT( pin );
|
1082 |
|
|
cyg_uint32 mode = CYGHWR_HAL_A2FXXX_GPIO_MODE( pin );
|
1083 |
|
|
cyg_uint32 mux = CYGHWR_HAL_A2FXXX_GPIO_IOMUX_IDX( pin );
|
1084 |
|
|
cyg_uint32 irq = CYGHWR_HAL_A2FXXX_GPIO_IRQ( pin );
|
1085 |
|
|
cyg_uint32 reg = 0;
|
1086 |
|
|
cyg_uint32 io_mux = 0;
|
1087 |
|
|
|
1088 |
|
|
if (pin == CYGHWR_HAL_A2FXXX_GPIO_NONE)
|
1089 |
|
|
return;
|
1090 |
|
|
|
1091 |
|
|
if(mode == CYGHWR_HAL_A2FXXX_GPIO_MODE_PERIPH){
|
1092 |
|
|
// Set IOMUX default value for peripheral use
|
1093 |
|
|
io_mux = default_io_mux[mux].val;
|
1094 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
1095 |
|
|
CYGHWR_HAL_A2FXXX_SC_IOMUX( mux ), io_mux );
|
1096 |
|
|
} else {
|
1097 |
|
|
// Set GPIO input/ output mode
|
1098 |
|
|
if (mode == CYGHWR_HAL_A2FXXX_GPIO_MODE_OUT) {
|
1099 |
|
|
reg = CYGHWR_HAL_A2FXXX_GPIO_CFG_GPOUTEN |
|
1100 |
|
|
CYGHWR_HAL_A2FXXX_GPIO_CFG_OUTBUFEN;
|
1101 |
|
|
}
|
1102 |
|
|
|
1103 |
|
|
// Configure IO as interrupt
|
1104 |
|
|
if (irq != CYGHWR_HAL_A2FXXX_GPIO_IRQ_DISABLE) {
|
1105 |
|
|
reg |= CYGHWR_HAL_A2FXXX_GPIO_CFG_GPINTEN;
|
1106 |
|
|
if(irq & CYGHWR_HAL_A2FXXX_GPIO_IRQ_FALLING_EDGE)
|
1107 |
|
|
reg |= CYGHWR_HAL_A2FXXX_GPIO_CFG_INTYPE(0);
|
1108 |
|
|
else if(irq & CYGHWR_HAL_A2FXXX_GPIO_IRQ_RISING_EDGE)
|
1109 |
|
|
reg |= CYGHWR_HAL_A2FXXX_GPIO_CFG_INTYPE(1);
|
1110 |
|
|
else if(irq & CYGHWR_HAL_A2FXXX_GPIO_IRQ_BOTH_EDGES)
|
1111 |
|
|
reg |= CYGHWR_HAL_A2FXXX_GPIO_CFG_INTYPE(2);
|
1112 |
|
|
else if(irq & CYGHWR_HAL_A2FXXX_GPIO_IRQ_LOW_LEVEL)
|
1113 |
|
|
reg |= CYGHWR_HAL_A2FXXX_GPIO_CFG_INTYPE(3);
|
1114 |
|
|
else
|
1115 |
|
|
reg |= CYGHWR_HAL_A2FXXX_GPIO_CFG_INTYPE(4);
|
1116 |
|
|
}
|
1117 |
|
|
|
1118 |
|
|
// Write down result
|
1119 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_MSS_GPIO +
|
1120 |
|
|
( CYGHWR_HAL_A2FXXX_MSS_GPIO_CFG( bit ) ), reg );
|
1121 |
|
|
|
1122 |
|
|
// For GPIO 16 to 31, we must setup the IOMUX
|
1123 |
|
|
// TODO, this is for output only?
|
1124 |
|
|
if( bit > 15 ){
|
1125 |
|
|
bit = bit - 16;
|
1126 |
|
|
io_mux = 0x35;
|
1127 |
|
|
HAL_WRITE_UINT32( CYGHWR_HAL_A2FXXX_SC +
|
1128 |
|
|
CYGHWR_HAL_A2FXXX_SC_IOMUX( bit ), io_mux );
|
1129 |
|
|
}
|
1130 |
|
|
|
1131 |
|
|
}
|
1132 |
|
|
}
|
1133 |
|
|
|
1134 |
|
|
|
1135 |
|
|
__externC void
|
1136 |
|
|
hal_a2fxxx_gpio_out( cyg_uint32 pin, int val )
|
1137 |
|
|
{
|
1138 |
|
|
cyg_uint32 bit = ( CYGHWR_HAL_A2FXXX_GPIO_BIT(pin) << 2 );
|
1139 |
|
|
cyg_uint32 port = CYGHWR_HAL_A2FXXX_MSS_GPIO_BB +
|
1140 |
|
|
( CYGHWR_HAL_A2FXXX_MSS_GPIO_DOUT << 5 );
|
1141 |
|
|
|
1142 |
|
|
port += bit;
|
1143 |
|
|
|
1144 |
|
|
HAL_WRITE_UINT32( port, val );
|
1145 |
|
|
}
|
1146 |
|
|
|
1147 |
|
|
|
1148 |
|
|
__externC void
|
1149 |
|
|
hal_a2fxxx_gpio_in ( cyg_uint32 pin, int *val )
|
1150 |
|
|
{
|
1151 |
|
|
cyg_uint32 bit = ( CYGHWR_HAL_A2FXXX_GPIO_BIT(pin) << 2 );
|
1152 |
|
|
cyg_uint32 port = CYGHWR_HAL_A2FXXX_MSS_GPIO_BB +
|
1153 |
|
|
( CYGHWR_HAL_A2FXXX_MSS_GPIO_DIN << 5 );
|
1154 |
|
|
cyg_uint32 pd;
|
1155 |
|
|
|
1156 |
|
|
port += bit;
|
1157 |
|
|
|
1158 |
|
|
HAL_READ_UINT32( port, pd );
|
1159 |
|
|
*val = 1 ? (bit & pd) : 0;
|
1160 |
|
|
}
|
1161 |
|
|
|
1162 |
|
|
|
1163 |
|
|
//==========================================================================
|
1164 |
|
|
// I2C clock rate
|
1165 |
|
|
//
|
1166 |
|
|
__externC cyg_uint32
|
1167 |
|
|
hal_a2fxxx_i2c_clock( cyg_uint32 base )
|
1168 |
|
|
{
|
1169 |
|
|
return ( (base == CYGHWR_HAL_A2FXXX_I2C0) ? hal_a2fxxx_pclk0 : hal_a2fxxx_pclk1 );
|
1170 |
|
|
}
|
1171 |
|
|
|
1172 |
|
|
|
1173 |
|
|
//==========================================================================
|
1174 |
|
|
// SPI clock rate
|
1175 |
|
|
//
|
1176 |
|
|
__externC cyg_uint32
|
1177 |
|
|
hal_a2fxxx_spi_clock( cyg_uint32 base )
|
1178 |
|
|
{
|
1179 |
|
|
return ( (base == CYGHWR_HAL_A2FXXX_SPI0) ? hal_a2fxxx_pclk0 : hal_a2fxxx_pclk1 );
|
1180 |
|
|
}
|
1181 |
|
|
|
1182 |
|
|
|
1183 |
|
|
//==========================================================================
|
1184 |
|
|
// UART baud rate
|
1185 |
|
|
//
|
1186 |
|
|
// Set the baud rate divider of a UART based on the requested rate and
|
1187 |
|
|
// the current APB clock settings.
|
1188 |
|
|
|
1189 |
|
|
__externC void
|
1190 |
|
|
hal_a2fxxx_uart_setbaud(cyg_uint32 base, cyg_uint32 baud)
|
1191 |
|
|
{
|
1192 |
|
|
cyg_uint16 divider =
|
1193 |
|
|
CYG_HAL_CORTEXM_A2FXXX_BAUD_GENERATOR( ((base == CYGHWR_HAL_A2FXXX_UART0)? 0 : 1) , baud );
|
1194 |
|
|
|
1195 |
|
|
HAL_WRITE_UINT32(base + CYGHWR_HAL_A2FXXX_UART16550_LCR,
|
1196 |
|
|
CYGHWR_HAL_A2FXXX_UART16550_LCR_DLAB);
|
1197 |
|
|
HAL_WRITE_UINT32(base + CYGHWR_HAL_A2FXXX_UART16550_DMR, divider >> 8);
|
1198 |
|
|
HAL_WRITE_UINT32(base + CYGHWR_HAL_A2FXXX_UART16550_DLR, divider & 0xFF);
|
1199 |
|
|
}
|
1200 |
|
|
|
1201 |
|
|
|
1202 |
|
|
//==========================================================================
|
1203 |
|
|
// Idle thread
|
1204 |
|
|
//
|
1205 |
|
|
#ifdef CYGSEM_HAL_CORTEXM_A2FXXX_DEFINES_IDLE_THREAD_ACTION
|
1206 |
|
|
__externC void
|
1207 |
|
|
hal_idle_thread_action( cyg_uint32 count )
|
1208 |
|
|
{
|
1209 |
|
|
while(1);
|
1210 |
|
|
}
|
1211 |
|
|
#endif
|
1212 |
|
|
|
1213 |
|
|
//==========================================================================
|
1214 |
|
|
// EOF a2fxxx_misc.c
|