diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c')
-rw-r--r-- | c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c b/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c deleted file mode 100644 index cd729a8e17..0000000000 --- a/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c +++ /dev/null @@ -1,129 +0,0 @@ -/** - * @file - * - * @ingroup mpc83xx - * - * @brief Source for BSP startup code. - */ - -/* - * Copyright (c) 2008-2014 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Dornierstr. 4 - * 82178 Puchheim - * Germany - * <info@embedded-brains.de> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <rtems/counter.h> - -#include <libchip/ns16550.h> - -#include <libcpu/powerpc-utility.h> - -#include <bsp.h> -#include <bsp/vectors.h> -#include <bsp/bootcard.h> -#include <bsp/irq-generic.h> -#include <bsp/linker-symbols.h> -#include <bsp/u-boot.h> -#include <bsp/console-termios.h> - -/* Configuration parameters for console driver, ... */ -unsigned int BSP_bus_frequency; - -/* Configuration parameter for clock driver */ -uint32_t bsp_time_base_frequency; - -/* Legacy */ -uint32_t bsp_clicks_per_usec; - -/* Default decrementer exception handler */ -static int mpc83xx_decrementer_exception_handler( BSP_Exception_frame *frame, unsigned number) -{ - ppc_set_decrementer_register(UINT32_MAX); - - return 0; -} - -void bsp_start( void) -{ - rtems_status_code sc = RTEMS_SUCCESSFUL; - unsigned long i = 0; - - /* - * Get CPU identification dynamically. Note that the get_ppc_cpu_type() function - * store the result in global variables so that it can be used latter... - */ - get_ppc_cpu_type(); - get_ppc_cpu_revision(); - - /* Basic CPU initialization */ - cpu_init(); - - /* - * Enable instruction and data caches. Do not force writethrough mode. - */ - -#ifdef BSP_INSTRUCTION_CACHE_ENABLED - rtems_cache_enable_instruction(); -#endif - -#ifdef BSP_DATA_CACHE_ENABLED - rtems_cache_enable_data(); -#endif - - /* - * This is evaluated during runtime, so it should be ok to set it - * before we initialize the drivers. - */ - - /* Initialize some device driver parameters */ - -#ifdef HAS_UBOOT - BSP_bus_frequency = bsp_uboot_board_info.bi_busfreq; -#else /* HAS_UBOOT */ - BSP_bus_frequency = BSP_CLKIN_FRQ * BSP_SYSPLL_MF / BSP_SYSPLL_CKID; -#endif /* HAS_UBOOT */ - bsp_time_base_frequency = BSP_bus_frequency / 4; - bsp_clicks_per_usec = bsp_time_base_frequency / 1000000; - rtems_counter_initialize_converter(bsp_time_base_frequency); - - /* Initialize some console parameters */ - for (i = 0; i < console_device_count; ++i) { - ns16550_context *ctx = (ns16550_context *) console_device_table[i].context; - - ctx->clock = BSP_bus_frequency; - - #ifdef HAS_UBOOT - ctx->initial_baud = bsp_uboot_board_info.bi_baudrate; - #endif - } - - /* Initialize exception handler */ -#ifndef BSP_DATA_CACHE_ENABLED - ppc_exc_cache_wb_check = 0; -#endif - ppc_exc_initialize( - (uintptr_t) bsp_section_work_begin, - rtems_configuration_get_interrupt_stack_size() - ); - - /* Install default handler for the decrementer exception */ - sc = ppc_exc_set_handler( ASM_DEC_VECTOR, mpc83xx_decrementer_exception_handler); - if (sc != RTEMS_SUCCESSFUL) { - rtems_panic("cannot install decrementer exception handler"); - } - - /* Initalize interrupt support */ - bsp_interrupt_initialize(); - -#ifdef SHOW_MORE_INIT_SETTINGS - printk("Exit from bspstart\n"); -#endif -} |