ecos-v3_0-branch: packages/hal/coldfire/m5272c3/current/src/plf

annotate packages/hal/coldfire/m5272c3/current/src/plf_startup.c @ 2729:74dbf4c3f2e1 after-copyright-change-20090129

Update all copyright banners to reflect FSF ownership; fix and improve licence text.

author	jlarmour
date	Thu, 29 Jan 2009 17:47:46 +0000
parents	a62600d0e7b5
children

rev	line source
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	1 //==========================================================================
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	2 //
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	3 // plf_startup.c
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	4 //
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	5 // M5272C3 platform HAL startup code
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	6 //
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	7 //==========================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	8 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2006 Free Software Foundation, Inc.
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	12 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	13 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	14 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	15 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	16 // version.
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	17 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	18 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	21 // for more details.
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	22 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	23 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	26 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	27 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	28 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	29 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	30 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	31 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	32 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	33 // General Public License v2.
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	34 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	35 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	36 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	37 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2201 diff changeset	38 // ####ECOSGPLCOPYRIGHTEND####
2201 a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	39 //==========================================================================
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	40 //#####DESCRIPTIONBEGIN####
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	41 //
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	42 // Author(s): Enrico Piria
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	43 // Contributors:
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	44 // Date: 2005-25-06
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	45 // Purpose: Platform startup code.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	46 // Description: This module contains code that sets up the platform specific
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	47 // hardware and data. All the code must be contained in the
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	48 // section called ".boot", in order for the ROMRAM startup
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	49 // to work properly.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	50 //
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	51 //####DESCRIPTIONEND####
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	52 //========================================================================
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	53
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	54 #include <cyg/infra/cyg_type.h>
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	55 #include <pkgconf/hal.h>
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	56 #include <cyg/hal/hal_startup.h>
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	57 #include CYGHWR_MEMORY_LAYOUT_H
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	58 #include <cyg/hal/hal_arch.h>
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	59 #include <cyg/hal/hal_io.h>
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	60 #include <cyg/hal/coldfire_regs.h>
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	61
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	62 static void plf_init_sim(void) __attribute__ ((section (".boot")));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	63 static void plf_init_intc(void) __attribute__ ((section (".boot")));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	64 static void plf_init_cs(void) __attribute__ ((section (".boot")));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	65 static void plf_init_sdramc(void) __attribute__ ((section (".boot")));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	66 static void plf_init_cache_acr(void) __attribute__ ((section (".boot")));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	67
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	68
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	69 // Platform-specific reset vector initialization routine
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	70 void plf_reset(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	71 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	72 plf_init_sim();
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	73 plf_init_intc();
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	74 plf_init_cs();
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	75 plf_init_sdramc();
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	76
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	77 // Call a routine to set up the cache and ACRs for this specific
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	78 // platform.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	79 plf_init_cache_acr();
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	80 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	81
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	82
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	83 // Initialize the cache and access control registers.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	84 // The reset procedure already invalidated the cache and ACRs.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	85 // This routine only needs to enable the ACRs that it will use.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	86 static void plf_init_cache_acr(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	87 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	88 // Enable the instruction cache with the following options:
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	89 // Enable CPUSHL invalidation.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	90 // No freeze.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	91 // Invalidate all cache lines (flush).
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	92 // No external arbiter control.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	93 // Disable non-cacheable instruction bursting.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	94 // Default memory is cacheable.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	95 // Enable buffered writes.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	96 // Read and write access permitted by default.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	97 // Instruction fetch size is cache line.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	98
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	99 #ifdef CYGSEM_HAL_ENABLE_ICACHE_ON_STARTUP
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	100 CYGARC_MOVEC((CYG_WORD32) 0x81000102, CYGARC_REG_CACR);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	101 #endif
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	102
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	103 // Leave the access control registers disabled.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	104 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	105
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	106
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	107 // Initialize SIM module and system configuration registers
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	108 void plf_init_sim(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	109 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	110 // Set up the mapping of our internal registers. The LSB indicates that
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	111 // the register contents are valid.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	112 CYGARC_MOVEC((CYG_WORD32)(CYGMEM_REGION_devs \| 1), CYGARC_REG_MBAR);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	113
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	114 // Initialize System Config Register
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	115 // Setup Watch Dog Timeout
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	116 HAL_WRITE_UINT16(&MCF5272_DEVS->cfg.scr, MCF5272_SIM_SCR_HWWD_1024);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	117
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	118 // Initialize System Protection Register
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	119 // Enable all bus error exceptions
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	120 HAL_WRITE_UINT16(&MCF5272_DEVS->cfg.spr,
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	121 (0 \| MCF5272_SIM_SPR_ADC \| MCF5272_SIM_SPR_ADCEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	122 \| MCF5272_SIM_SPR_WPV \| MCF5272_SIM_SPR_WPVEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	123 \| MCF5272_SIM_SPR_SMV \| MCF5272_SIM_SPR_SMVEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	124 \| MCF5272_SIM_SPR_SBE \| MCF5272_SIM_SPR_SBEEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	125 \| MCF5272_SIM_SPR_HWT \| MCF5272_SIM_SPR_HWTEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	126 \| MCF5272_SIM_SPR_RPV \| MCF5272_SIM_SPR_RPVEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	127 \| MCF5272_SIM_SPR_EXT \| MCF5272_SIM_SPR_EXTEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	128 \| MCF5272_SIM_SPR_SUV \| MCF5272_SIM_SPR_SUVEN
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	129 )) ;
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	130 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	131
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	132
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	133 // Initialize interrupt controller
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	134 void plf_init_intc(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	135 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	136 int i;
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	137
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	138 // Initialize the vector base register in the interrupt controller.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	139 HAL_WRITE_UINT8(&MCF5272_DEVS->intc.ipvr, HAL_PROG_INT_VEC_BASE);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	140
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	141 // Initialize the interrupt control register.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	142 // Disable all interrupts by setting all priorities to zero.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	143 for (i = 0; i < 4; i++)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	144 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	145 HAL_WRITE_UINT32(&MCF5272_DEVS->intc.icr[i], 0x88888888);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	146 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	147
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	148 // Initialize the processor's vector base register (align to 1M boundary).
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	149 CYGARC_MOVEC((CYG_WORD32) __ramvec_start & 0xFFF00000, CYGARC_REG_VBR);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	150 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	151
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	152
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	153 // Initialize chip-select modules
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	154 void plf_init_cs(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	155 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	156 // ChipSelect 0 - 2MB FLASH
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	157 // At startup, CS0 is configured so that addresses starting at 0xXXX00000
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	158 // are aliased to 0x00000000, so, in ROM startup configuration, code can
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	159 // be placed starting at VMA address 0xFFE00000. When we are here,
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	160 // the PC points to addresses in 0xFFE00000 space, and we can safely
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	161 // reconfigure CS0 to respond uniquely to those addresses.
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	162 HAL_WRITE_UINT32(&MCF5272_DEVS->cs[0].csbr, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	163 \| MCF5272_CS_BR_BASE(CYGMEM_REGION_flash)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	164 \| MCF5272_CS_BR_SRAM
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	165 \| MCF5272_CS_BR_PS_16
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	166 \| MCF5272_CS_BR_EN));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	167
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	168 HAL_WRITE_UINT32(&MCF5272_DEVS->cs[0].csor,
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	169 (0 \| MCF5272_CS_OR_MASK_2M
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	170 \| MCF5272_CS_OR_WS(5)));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	171
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	172 #ifdef CYGHWR_EXT_SRAM_INSTALLED
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	173 // Chip Select 2 - 512KB SRAM
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	174 HAL_WRITE_UINT32(&MCF5272_DEVS->cs[2].csbr, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	175 \| MCF5272_CS_BR_BASE(CYGMEM_REGION_ext_sram)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	176 \| MCF5272_CS_BR_SRAM
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	177 \| MCF5272_CS_BR_PS_32
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	178 \| MCF5272_CS_BR_EN));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	179
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	180 HAL_WRITE_UINT32(&MCF5272_DEVS->cs[2].csor, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	181 \| MCF5272_CS_OR_MASK_512K
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	182 \| MCF5272_CS_OR_WS(0)));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	183 #endif // CYGHWR_EXT_SRAM_INSTALLED
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	184
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	185 // ChipSelect 7 - 16MB SDRAM
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	186 HAL_WRITE_UINT32(&MCF5272_DEVS->cs[7].csbr, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	187 \| MCF5272_CS_BR_BASE(CYGMEM_REGION_sdram)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	188 \| MCF5272_CS_BR_SDRAM
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	189 \| MCF5272_CS_BR_PS_LINE
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	190 \| MCF5272_CS_BR_EN));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	191
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	192 HAL_WRITE_UINT32(&MCF5272_DEVS->cs[7].csor, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	193 #if (CYGHWR_INSTALLED_SDRAM_SIZE == 4)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	194 \| MCF5272_CS_OR_MASK_4M
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	195 #else
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	196 \| MCF5272_CS_OR_MASK_16M
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	197 #endif
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	198 \| MCF5272_CS_OR_WS(0x1F)));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	199 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	200
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	201
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	202 // Initialize SDRAM controller
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	203 void plf_init_sdramc(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	204 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	205 cyg_uint16 sdcr;
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	206
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	207
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	208 HAL_READ_UINT16(&MCF5272_DEVS->sdramc.sdcr, sdcr);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	209
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	210 // Do not initialize SDRAM if it is already active
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	211 if (!(sdcr & MCF5272_SDRAMC_SDCCR_ACT))
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	212 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	213 #if (CYGHWR_HAL_SYSTEM_CLOCK_MHZ == 66)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	214 HAL_WRITE_UINT16(&MCF5272_DEVS->sdramc.sdtr, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	215 \| MCF5272_SDRAMC_SDCTR_RTP_66MHz
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	216 \| MCF5272_SDRAMC_SDCTR_RC(0)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	217 \| MCF5272_SDRAMC_SDCTR_RP(1)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	218 \| MCF5272_SDRAMC_SDCTR_RCD(1)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	219 \| MCF5272_SDRAMC_SDCTR_CLT_2));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	220 #else
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	221 // Clock frequency must be 48 Mhz
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	222 HAL_WRITE_UINT16(&MCF5272_DEVS->sdramc.sdtr, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	223 \| MCF5272_SDRAMC_SDCTR_RTP_48MHz
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	224 \| MCF5272_SDRAMC_SDCTR_RC(0)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	225 \| MCF5272_SDRAMC_SDCTR_RP(1)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	226 \| MCF5272_SDRAMC_SDCTR_RCD(0)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	227 \| MCF5272_SDRAMC_SDCTR_CLT_2));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	228 #endif
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	229
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	230 HAL_WRITE_UINT16(&MCF5272_DEVS->sdramc.sdcr, (0
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	231 \| MCF5272_SDRAMC_SDCCR_MCAS_A9
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	232 #if (CYGHWR_INSTALLED_SDRAM_SIZE == 4)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	233 \| MCF5272_SDRAMC_SDCCR_BALOC_A21
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	234 #else
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	235 \| MCF5272_SDRAMC_SDCCR_BALOC_A22
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	236 #endif
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	237 \| MCF5272_SDRAMC_SDCCR_REG
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	238 \| MCF5272_SDRAMC_SDCCR_INIT));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	239
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	240 // Start SDRAM controller with a memory write
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	241 ((volatile char ) CYGMEM_REGION_sdram) = 0;
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	242
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	243 // Wait until controller is ready
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	244 do
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	245 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	246 HAL_READ_UINT16(&MCF5272_DEVS->sdramc.sdcr, sdcr);
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	247 } while(!(sdcr & MCF5272_SDRAMC_SDCCR_ACT));
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	248 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	249 }
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	250
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	251
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	252 // Platform specific data initialization routine
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	253 void plf_init_data(void)
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	254 {
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	255 // Nothing to do
a62600d0e7b5 Import of the new ColdFire architecture HAL and M52272C port, with asl parents: diff changeset	256 }

Mercurial > ecos-v3_0-branch

annotate packages/hal/coldfire/m5272c3/current/src/plf_startup.c @ 2729:74dbf4c3f2e1 after-copyright-change-20090129