diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mpc55xxevb/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mpc55xxevb/startup/bspstart.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/bspstart.c deleted file mode 100644 index 9042fc3864..0000000000 --- a/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/bspstart.c +++ /dev/null @@ -1,104 +0,0 @@ -/** - * @file - * - * @ingroup mpc55xx - * - * @brief BSP startup code. - */ - -/* - * Copyright (c) 2008-2013 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Dornierstr. 4 - * 82178 Puchheim - * Germany - * <rtems@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 <mpc55xx/mpc55xx.h> -#include <mpc55xx/regs.h> -#include <mpc55xx/edma.h> -#include <mpc55xx/emios.h> - -#include <string.h> - -#include <rtems.h> -#include <rtems/config.h> -#include <rtems/counter.h> - -#include <libcpu/powerpc-utility.h> -#include <bsp/vectors.h> - -#include <bsp.h> -#include <bsp/bootcard.h> -#include <bsp/irq.h> -#include <bsp/irq-generic.h> -#include <bsp/linker-symbols.h> -#include <bsp/start.h> -#include <bsp/mpc55xx-config.h> - -/* Symbols defined in linker command file */ -LINKER_SYMBOL(mpc55xx_exc_vector_base); - -unsigned int bsp_clock_speed = 0; - -uint32_t bsp_clicks_per_usec = 0; - -static void null_pointer_protection(void) -{ -#ifdef MPC55XX_NULL_POINTER_PROTECTION - struct MMU_tag mmu = { .MAS0 = { .B = { .TLBSEL = 1, .ESEL = 1 } } }; - - PPC_SET_SPECIAL_PURPOSE_REGISTER(FSL_EIS_MAS0, mmu.MAS0.R); - __asm__ volatile ("tlbre"); - mmu.MAS1.R = PPC_SPECIAL_PURPOSE_REGISTER(FSL_EIS_MAS1); - mmu.MAS1.B.VALID = 0; - PPC_SET_SPECIAL_PURPOSE_REGISTER(FSL_EIS_MAS1, mmu.MAS1.R); - __asm__ volatile ("tlbwe"); -#endif -} - -void bsp_start(void) -{ - null_pointer_protection(); - - /* - * 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(); - - /* - * determine clock speed - */ - bsp_clock_speed = mpc55xx_get_system_clock() / MPC55XX_SYSTEM_CLOCK_DIVIDER; - - /* Time reference value */ - bsp_clicks_per_usec = bsp_clock_speed / 1000000; - rtems_counter_initialize_converter(bsp_clock_speed); - - /* Initialize exceptions */ - ppc_exc_initialize_with_vector_base( - (uintptr_t) bsp_section_work_begin, - rtems_configuration_get_interrupt_stack_size(), - mpc55xx_exc_vector_base - ); - - /* Initialize interrupts */ - bsp_interrupt_initialize(); - - #if MPC55XX_CHIP_FAMILY != 566 - mpc55xx_edma_init(); - #endif - - #ifdef MPC55XX_EMIOS_PRESCALER - mpc55xx_emios_initialize(MPC55XX_EMIOS_PRESCALER); - #endif -} |