mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-08-30 07:58:40 +08:00
2008-08-21 Joel Sherrill <joel.sherrill@oarcorp.com>
* Makefile.am: Added bspclean.c and use shared bsppretaskinghook.c. * console/console.c: Added poll for char helper. * include/bsp.h: Add macro definitions for optional reset behavior. * startup/bspstart.c: Split out bsp_cleanup(). Clean up. * startup/bspclean.c: New file. Not can press any key on normal shutdown to reset board when on MPC8313erdb.
This commit is contained in:
Joel Sherrill
@@ -1,3 +1,12 @@
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2008-08-21 Joel Sherrill <joel.sherrill@oarcorp.com>
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* Makefile.am: Added bspclean.c and use shared bsppretaskinghook.c.
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* console/console.c: Added poll for char helper.
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* include/bsp.h: Add macro definitions for optional reset behavior.
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* startup/bspstart.c: Split out bsp_cleanup(). Clean up.
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* startup/bspclean.c: New file. Not can press any key on normal
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shutdown to reset board when on MPC8313erdb.
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2008-08-21 Sebastian Huber <sebastian.huber@embedded-brains.de>
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* startup/cpuinit.h: Uses now powerpc-utility.h. Changed invalid usage
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@@ -47,11 +47,13 @@ startup_SOURCES = ../../shared/bsplibc.c \
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../../shared/bsppost.c \
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../../shared/bootcard.c \
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../../shared/bsppredriverhook.c \
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../../shared/bsppretaskinghook.c \
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../../shared/sbrk.c \
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../../shared/gnatinstallhandler.c \
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../shared/src/tictac.c \
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startup/cpuinit.c \
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startup/bspstart.c \
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startup/bspclean.c \
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startup/uboot_support.c \
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../shared/uboot_getenv.c
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@@ -273,3 +273,7 @@ void debug_putc_onlcr(const char c)
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BSP_output_char_function_type BSP_output_char = debug_putc_onlcr;
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/* const char arg to be compatible with BSP_output_char decl. */
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int bsp_uart_pollRead(int minor)
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{
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return Console_Port_Tbl [0].pDeviceFns->deviceRead(0);
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}
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@@ -32,6 +32,10 @@
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#define CONFIG_MPC83XX
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#define CONFIG_HAS_ETH1
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/* We want to prompt for a reset and then reset the board */
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#define BSP_PRESS_KEY_FOR_RESET 1
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#define BSP_RESET_BOARD_AT_EXIT 1
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#endif /* MPC8313ERDB */
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#include <libcpu/powerpc-utility.h>
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@@ -42,33 +46,33 @@
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* Some symbols defined in the linker command file.
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*/
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LINKER_SYMBOL( bsp_ram_start);
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LINKER_SYMBOL( bsp_ram_end);
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LINKER_SYMBOL( bsp_ram_size);
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LINKER_SYMBOL(bsp_ram_start);
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LINKER_SYMBOL(bsp_ram_end);
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LINKER_SYMBOL(bsp_ram_size);
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LINKER_SYMBOL( bsp_rom_start);
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LINKER_SYMBOL( bsp_rom_end);
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LINKER_SYMBOL( bsp_rom_size);
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LINKER_SYMBOL(bsp_rom_start);
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LINKER_SYMBOL(bsp_rom_end);
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LINKER_SYMBOL(bsp_rom_size);
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LINKER_SYMBOL( bsp_section_text_start);
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LINKER_SYMBOL( bsp_section_text_end);
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LINKER_SYMBOL( bsp_section_text_size);
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LINKER_SYMBOL(bsp_section_text_start);
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LINKER_SYMBOL(bsp_section_text_end);
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LINKER_SYMBOL(bsp_section_text_size);
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LINKER_SYMBOL( bsp_section_data_start);
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LINKER_SYMBOL( bsp_section_data_end);
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LINKER_SYMBOL( bsp_section_data_size);
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LINKER_SYMBOL(bsp_section_data_start);
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LINKER_SYMBOL(bsp_section_data_end);
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LINKER_SYMBOL(bsp_section_data_size);
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LINKER_SYMBOL( bsp_section_bss_start);
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LINKER_SYMBOL( bsp_section_bss_end);
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LINKER_SYMBOL( bsp_section_bss_size);
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LINKER_SYMBOL(bsp_section_bss_start);
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LINKER_SYMBOL(bsp_section_bss_end);
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LINKER_SYMBOL(bsp_section_bss_size);
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LINKER_SYMBOL( bsp_interrupt_stack_start);
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LINKER_SYMBOL( bsp_interrupt_stack_end);
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LINKER_SYMBOL( bsp_interrupt_stack_size);
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LINKER_SYMBOL(bsp_interrupt_stack_start);
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LINKER_SYMBOL(bsp_interrupt_stack_end);
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LINKER_SYMBOL(bsp_interrupt_stack_size);
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LINKER_SYMBOL( bsp_work_area_start);
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LINKER_SYMBOL(bsp_work_area_start);
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LINKER_SYMBOL( IMMRBAR);
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LINKER_SYMBOL(IMMRBAR);
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#ifndef ASM
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@@ -0,0 +1,78 @@
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/**
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* @file
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*
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* @ingroup mpc83xx
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*
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* @brief Source for BSP startup code.
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*/
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/*
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* Copyright (c) 2008
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* Embedded Brains GmbH
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* Obere Lagerstr. 30
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* D-82178 Puchheim
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* Germany
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* rtems@embedded-brains.de
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*
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <string.h>
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#include <rtems.h>
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#include <rtems/bspIo.h>
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#include <bsp.h>
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#include <bsp/bootcard.h>
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extern int bsp_uart_pollRead(int minor);
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void bsp_reset(void)
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{
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#ifdef MPC8313ERDB
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_ISR_Set_level( 0 );
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/* Set Reset Protection Register (RPR) to "RSTE" */
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mpc83xx.res.rpr = 0x52535445;
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/*
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* Wait for Control Register Enabled in the
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* Reset Control Enable Register (RCER).
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*/
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while (mpc83xx.res.rcer != 0x00000001) {
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/* Wait */
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}
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/* Set Software Hard Reset in the Reset Control Register (RCR) */
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mpc83xx.res.rcr = 0x00000002;
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#else /* MPC8313ERDB */
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/* Do nothing */
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#endif /* MPC8313ERDB */
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}
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void bsp_cleanup(void)
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{
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#if defined(BSP_PRESS_KEY_FOR_RESET)
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printk( "\nEXECUTIVE SHUTDOWN! Any key to reboot..." );
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/*
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* Wait for a key to be pressed
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*/
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while ( bsp_uart_pollRead(0) == -1 ) {
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/* Wait */
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}
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#endif
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/*
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* Check both conditions -- if you want to ask for reboot, then
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* you must have meant to reset the board.
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*/
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#if defined(BSP_PRESS_KEY_FOR_RESET) || defined(BSP_RESET_BOARD_AT_EXIT)
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bsp_reset();
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#endif
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}
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@@ -56,125 +56,125 @@ uint32_t bsp_clicks_per_usec;
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/* Default decrementer exception handler */
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static int mpc83xx_decrementer_exception_handler( BSP_Exception_frame *frame, unsigned number)
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{
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ppc_set_decrementer_register( UINT32_MAX);
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ppc_set_decrementer_register(UINT32_MAX);
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return 0;
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return 0;
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}
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void BSP_panic( char *s)
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void BSP_panic(char *s)
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{
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rtems_interrupt_level level;
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rtems_interrupt_level level;
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rtems_interrupt_disable( level);
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rtems_interrupt_disable(level);
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printk( "%s PANIC %s\n", _RTEMS_version, s);
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printk("%s PANIC %s\n", rtems_get_version_string(), s);
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while (1) {
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/* Do nothing */
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}
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while (1) {
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/* Do nothing */
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}
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}
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void _BSP_Fatal_error( unsigned n)
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void _BSP_Fatal_error(unsigned n)
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{
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rtems_interrupt_level level;
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rtems_interrupt_level level;
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rtems_interrupt_disable( level);
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rtems_interrupt_disable( level);
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printk( "%s PANIC ERROR %u\n", _RTEMS_version, n);
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printk( "%s PANIC ERROR %u\n", rtems_get_version_string(), n);
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while (1) {
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/* Do nothing */
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}
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while (1) {
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/* Do nothing */
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}
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}
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void bsp_pretasking_hook( void)
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{
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/* Do noting */
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}
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void bsp_get_work_area( void **work_area_start, size_t *work_area_size, void **heap_start, size_t *heap_size)
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void bsp_get_work_area(
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void **work_area_start,
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size_t *work_area_size,
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void **heap_start,
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size_t *heap_size)
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{
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#ifdef HAS_UBOOT
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char *ram_end = (char *) mpc83xx_uboot_board_info.bi_memstart + mpc83xx_uboot_board_info.bi_memsize;
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char *ram_end = (char *) mpc83xx_uboot_board_info.bi_memstart +
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mpc83xx_uboot_board_info.bi_memsize;
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#else /* HAS_UBOOT */
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char *ram_end = bsp_ram_end;
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char *ram_end = bsp_ram_end;
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#endif /* HAS_UBOOT */
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*work_area_start = bsp_work_area_start;
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*work_area_size = ram_end - bsp_work_area_start;
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*heap_start = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
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*heap_size = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
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*work_area_start = bsp_work_area_start;
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*work_area_size = ram_end - bsp_work_area_start;
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*heap_start = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
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*heap_size = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
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}
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void bsp_start( void)
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{
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rtems_status_code sc = RTEMS_SUCCESSFUL;
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int rv = 0;
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rtems_status_code sc = RTEMS_SUCCESSFUL;
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int rv = 0;
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ppc_cpu_id_t myCpu;
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ppc_cpu_revision_t myCpuRevision;
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ppc_cpu_id_t myCpu;
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ppc_cpu_revision_t myCpuRevision;
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uint32_t interrupt_stack_start = (uint32_t) bsp_interrupt_stack_start;
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uint32_t interrupt_stack_size = (uint32_t) bsp_interrupt_stack_size;
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uint32_t interrupt_stack_start = (uint32_t) bsp_interrupt_stack_start;
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uint32_t interrupt_stack_size = (uint32_t) bsp_interrupt_stack_size;
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/*
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* Get CPU identification dynamically. Note that the get_ppc_cpu_type() function
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* store the result in global variables so that it can be used latter...
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*/
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myCpu = get_ppc_cpu_type();
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myCpuRevision = get_ppc_cpu_revision();
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/*
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* Get CPU identification dynamically. Note that the get_ppc_cpu_type() function
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* store the result in global variables so that it can be used latter...
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*/
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myCpu = get_ppc_cpu_type();
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myCpuRevision = get_ppc_cpu_revision();
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/* Basic CPU initialization */
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cpu_init();
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/* Basic CPU initialization */
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cpu_init();
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/*
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* Enable instruction and data caches. Do not force writethrough mode.
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*/
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/*
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* Enable instruction and data caches. Do not force writethrough mode.
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*/
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#if INSTRUCTION_CACHE_ENABLE
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rtems_cache_enable_instruction();
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rtems_cache_enable_instruction();
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#endif
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#if DATA_CACHE_ENABLE
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rtems_cache_enable_data();
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rtems_cache_enable_data();
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#endif
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/*
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* This is evaluated during runtime, so it should be ok to set it
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* before we initialize the drivers.
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*/
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/*
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* This is evaluated during runtime, so it should be ok to set it
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* before we initialize the drivers.
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*/
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/* Initialize some device driver parameters */
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/* Initialize some device driver parameters */
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#ifdef HAS_UBOOT
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BSP_bus_frequency = mpc83xx_uboot_board_info.bi_busfreq;
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bsp_clicks_per_usec = mpc83xx_uboot_board_info.bi_intfreq / 8000000;
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BSP_bus_frequency = mpc83xx_uboot_board_info.bi_busfreq;
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bsp_clicks_per_usec = mpc83xx_uboot_board_info.bi_intfreq / 8000000;
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#else /* HAS_UBOOT */
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BSP_bus_frequency = BSP_CLKIN_FRQ * BSP_SYSPLL_MF / BSP_SYSPLL_CKID;
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bsp_clicks_per_usec = BSP_bus_frequency / 1000000;
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BSP_bus_frequency = BSP_CLKIN_FRQ * BSP_SYSPLL_MF / BSP_SYSPLL_CKID;
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bsp_clicks_per_usec = BSP_bus_frequency / 1000000;
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#endif /* HAS_UBOOT */
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/* Initialize exception handler */
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ppc_exc_initialize(
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PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
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interrupt_stack_start,
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interrupt_stack_size
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);
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/* Initialize exception handler */
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ppc_exc_initialize(
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PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
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interrupt_stack_start,
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interrupt_stack_size
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);
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/* Install default handler for the decrementer exception */
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rv = ppc_exc_set_handler( ASM_DEC_VECTOR, mpc83xx_decrementer_exception_handler);
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if (rv < 0) {
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BSP_panic( "Cannot install decrementer exception handler!\n");
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}
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/* Install default handler for the decrementer exception */
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rv = ppc_exc_set_handler( ASM_DEC_VECTOR, mpc83xx_decrementer_exception_handler);
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if (rv < 0) {
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BSP_panic( "Cannot install decrementer exception handler!\n");
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}
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/* Initalize interrupt support */
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sc = bsp_interrupt_initialize();
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if (sc != RTEMS_SUCCESSFUL) {
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BSP_panic( "Cannot intitialize interrupt support\n");
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}
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/* Initalize interrupt support */
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sc = bsp_interrupt_initialize();
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if (sc != RTEMS_SUCCESSFUL) {
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BSP_panic( "Cannot intitialize interrupt support\n");
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}
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#ifdef SHOW_MORE_INIT_SETTINGS
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printk("Exit from bspstart\n");
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printk("Exit from bspstart\n");
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#endif
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}
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@@ -188,42 +188,17 @@ void bsp_start( void)
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Thread _Thread_Idle_body( uint32_t ignored)
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{
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while (1) {
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asm volatile (
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"mfmsr 3;"
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"oris 3, 3, 4;"
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"sync;"
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"mtmsr 3;"
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"isync;"
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"ori 3, 3, 0;"
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"ori 3, 3, 0"
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);
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}
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while (1) {
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asm volatile (
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"mfmsr 3;"
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"oris 3, 3, 4;"
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"sync;"
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"mtmsr 3;"
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"isync;"
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"ori 3, 3, 0;"
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"ori 3, 3, 0"
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);
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}
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return NULL;
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}
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void bsp_cleanup( void)
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{
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#ifdef MPC8313ERDB
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/* Set Reset Protection Register (RPR) to "RSTE" */
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mpc83xx.res.rpr = 0x52535445;
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/*
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* Wait for Control Register Enabled in the
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* Reset Control Enable Register (RCER).
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*/
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while (mpc83xx.res.rcer != 0x00000001) {
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/* Wait */
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}
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/* Set Software Hard Reset in the Reset Control Register (RCR) */
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mpc83xx.res.rcr = 0x00000002;
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#else /* MPC8313ERDB */
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/* Do nothing */
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#endif /* MPC8313ERDB */
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return NULL;
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}
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||||
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