CM3: unify architecture initialization routine for all the Cortex-M3 processors.

[bertos.git] / bertos / cpu / cortex-m3 / hw / init_lm3s.c

diff --git a/bertos/cpu/cortex-m3/hw/init_lm3s.c b/bertos/cpu/cortex-m3/hw/init_lm3s.c
deleted file mode 100644 (file)
index 0c0a05b..0000000
--- a/bertos/cpu/cortex-m3/hw/init_lm3s.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction.  Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License.  This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \brief Cortex-M3 architecture's entry point
- *
- * \author Andrea Righi <arighi@develer.com>
- */
-
-#include <cfg/compiler.h>
-#include <cfg/cfg_proc.h> /* CONFIG_KERN_PREEMPT */
-#include <kern/proc_p.h>
-#include <cfg/debug.h>
-#include <cpu/attr.h> /* PAUSE */
-#include <cpu/irq.h> /* IRQ_DISABLE */
-#include <cpu/types.h>
-#include <drv/irq_cm3.h>
-#include <drv/clock_lm3s.h>
-#include <io/lm3s.h>
-#include "switch_ctx_cm3.h"
-
-extern size_t __text_end, __data_start, __data_end, __bss_start, __bss_end;
-
-extern void __init2(void);
-
-/* Architecture's entry point */
-void __init2(void)
-{
-       /*
-        * The main application expects IRQs disabled.
-        */
-       IRQ_DISABLE;
-
-       /*
-        * PLL may not function properly at default LDO setting.
-        *
-        * Description:
-        *
-        * In designs that enable and use the PLL module, unstable device
-        * behavior may occur with the LDO set at its default of 2.5 volts or
-        * below (minimum of 2.25 volts). Designs that do not use the PLL
-        * module are not affected.
-        *
-        * Workaround: Prior to enabling the PLL module, it is recommended that
-        * the default LDO voltage setting of 2.5 V be adjusted to 2.75 V using
-        * the LDO Power Control (LDOPCTL) register.
-        *
-        * Silicon Revision Affected: A1, A2
-        *
-        * See also: Stellaris LM3S1968 A2 Errata documentation.
-        */
-       if (REVISION_IS_A1 | REVISION_IS_A2)
-               HWREG(SYSCTL_LDOPCTL) = SYSCTL_LDOPCTL_2_75V;
-
-       /* Set the appropriate clocking configuration */
-       clock_set_rate();
-
-       /* Initialize IRQ vector table in RAM */
-       sysirq_init();
-
-#if CONFIG_KERN_PREEMPT
-       /*
-        * Voluntary context switch handler.
-        *
-        * This software interrupt can always be triggered and must be
-        * dispatched as soon as possible, thus we just disable IRQ priority
-        * for it.
-        */
-       sysirq_setHandler(FAULT_SVCALL, svcall_handler);
-       sysirq_setPriority(FAULT_SVCALL, IRQ_PRIO_MAX);
-       /*
-        * Preemptible context switch handler
-        *
-        * The priority of this IRQ must be the lowest priority in the system
-        * in order to run last in the interrupt service routines' chain.
-        */
-       sysirq_setHandler(FAULT_PENDSV, pendsv_handler);
-       sysirq_setPriority(FAULT_PENDSV, IRQ_PRIO_MIN);
-#endif
-}