46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*
|
|
* \brief Platform implementations specific for base-hw and Raspberry Pi3
|
|
* \author Stefan Kalkowski
|
|
* \date 2019-05-11
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2019 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#include <platform.h>
|
|
|
|
/**
|
|
* Leave out the first page (being 0x0) from bootstraps RAM allocator,
|
|
* some code does not feel happy with addresses being zero
|
|
*/
|
|
Bootstrap::Platform::Board::Board()
|
|
: early_ram_regions(Memory_region { ::Board::RAM_BASE + 0x1000,
|
|
::Board::RAM_SIZE - 0x1000 }),
|
|
late_ram_regions(Memory_region { ::Board::RAM_BASE, 0x1000 }),
|
|
core_mmio(Memory_region { ::Board::UART_BASE, ::Board::UART_SIZE },
|
|
Memory_region { ::Board::LOCAL_IRQ_CONTROLLER_BASE,
|
|
::Board::LOCAL_IRQ_CONTROLLER_SIZE },
|
|
Memory_region { ::Board::IRQ_CONTROLLER_BASE,
|
|
::Board::IRQ_CONTROLLER_SIZE }) {}
|
|
|
|
|
|
extern unsigned int _crt0_qemu_start_secondary_cpus;
|
|
|
|
void Board::Cpu::wake_up_all_cpus(void * ip)
|
|
{
|
|
/* start when in qemu */
|
|
_crt0_qemu_start_secondary_cpus = 1;
|
|
|
|
/* start on real hardware */
|
|
*((void * volatile *) 0xe0) = ip; /* cpu 1 */
|
|
*((void * volatile *) 0xe8) = ip; /* cpu 2 */
|
|
*((void * volatile *) 0xf0) = ip; /* cpu 3 */
|
|
|
|
/* send event for both variants */
|
|
asm volatile("dsb #15; sev");
|
|
}
|