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Diffstat (limited to 'c/src/lib/libbsp/arm/raspberrypi/startup/bspsmp.c')
-rw-r--r-- | c/src/lib/libbsp/arm/raspberrypi/startup/bspsmp.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/c/src/lib/libbsp/arm/raspberrypi/startup/bspsmp.c b/c/src/lib/libbsp/arm/raspberrypi/startup/bspsmp.c deleted file mode 100644 index c3e5451442..0000000000 --- a/c/src/lib/libbsp/arm/raspberrypi/startup/bspsmp.c +++ /dev/null @@ -1,83 +0,0 @@ -/** - * @file - * - * @ingroup raspberrypi - * - * @brief Raspberry pi SMP management functions provided to SuperCore - */ - -/* - * Copyright (c) 2016 Pavel Pisa <pisa@cmp.felk.cvut.cz> - * - * Czech Technical University in Prague - * Zikova 1903/4 - * 166 36 Praha 6 - * Czech Republic - * - * Reuses some ideas from Rohini Kulkarni <krohini1593@gmail.com> - * GSoC 2015 project and Altera Cyclone-V SMP code - * by embedded brains GmbH - * - * 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/score/smpimpl.h> - -#include <bsp/start.h> -#include <bsp/raspberrypi.h> -#include <bsp.h> -#include <bsp/arm-cp15-start.h> -#include <libcpu/arm-cp15.h> -#include <rtems.h> -#include <bsp/irq-generic.h> -#include <assert.h> - -bool _CPU_SMP_Start_processor( uint32_t cpu_index ) -{ - bool started; - uint32_t cpu_index_self = _SMP_Get_current_processor(); - - if (cpu_index != cpu_index_self) { - - BCM2835_REG(BCM2836_MAILBOX_3_WRITE_SET_BASE + 0x10 * cpu_index) = (uint32_t)_start; - - /* - * Wait for secondary processor to complete its basic initialization so - * that we can enable the unified L2 cache. - */ - started = _Per_CPU_State_wait_for_non_initial_state(cpu_index, 0); - } else { - started = false; - } - - return started; -} - -uint32_t _CPU_SMP_Initialize(void) -{ - uint32_t cpu_count = (uint32_t)bsp_processor_count; - - if ( cpu_count > 4 ) - cpu_count = 4; - - return cpu_count; -} - -void _CPU_SMP_Finalize_initialization( uint32_t cpu_count ) -{ - /* Do nothing */ -} - -void _CPU_SMP_Prepare_start_multitasking( void ) -{ - /* Do nothing */ -} - -void _CPU_SMP_Send_interrupt( uint32_t target_cpu_index ) -{ - /* Generates IPI */ - BCM2835_REG(BCM2836_MAILBOX_3_WRITE_SET_BASE + - 0x10 * target_cpu_index) = 0x1; -} |