103 lines
2.3 KiB
C++
103 lines
2.3 KiB
C++
/*
|
|
* \brief Platform implementations specific for base-hw and i.MX31
|
|
* \author Norman Feske
|
|
* \date 2012-08-30
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2012-2013 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
/* core includes */
|
|
#include <platform.h>
|
|
#include <board.h>
|
|
#include <pic.h>
|
|
#include <cpu.h>
|
|
#include <kernel/irq.h>
|
|
|
|
using namespace Genode;
|
|
|
|
namespace Kernel { void init_platform(); }
|
|
|
|
/**
|
|
* Interrupts that core shall provide to users
|
|
*/
|
|
static unsigned irq_ids[] =
|
|
{
|
|
Board::EPIT_2_IRQ
|
|
};
|
|
|
|
enum { IRQ_IDS_SIZE = sizeof(irq_ids)/sizeof(irq_ids[0]) };
|
|
|
|
|
|
void Kernel::init_platform()
|
|
{
|
|
/* make user IRQs become known by cores IRQ session backend and kernel */
|
|
static uint8_t _irqs[IRQ_IDS_SIZE][sizeof(Irq)];
|
|
for (unsigned i = 0; i < IRQ_IDS_SIZE; i++) {
|
|
new (_irqs[i]) Irq(irq_ids[i]);
|
|
}
|
|
}
|
|
|
|
|
|
unsigned * Platform::_irq(unsigned const i)
|
|
{
|
|
return i < IRQ_IDS_SIZE ? &irq_ids[i] : 0;
|
|
}
|
|
|
|
|
|
Native_region * Platform::_ram_regions(unsigned const i)
|
|
{
|
|
static Native_region _regions[] =
|
|
{
|
|
{ Board::RAM_0_BASE, Board::RAM_0_SIZE }
|
|
};
|
|
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
|
|
}
|
|
|
|
|
|
Native_region * Platform::_mmio_regions(unsigned const i)
|
|
{
|
|
static Native_region _regions[] =
|
|
{
|
|
/*
|
|
* The address range below 0x30000000 is used for secure ROM, ROM, and
|
|
* internal RAM.
|
|
*/
|
|
{ 0x30000000, 0x50000000 },
|
|
/*
|
|
* The address range between 0x8000000 and 0x9fffffff is designated for
|
|
* SDRAM. The remaining address range is populated with peripherals.
|
|
*/
|
|
{ 0xa0000000, 0x24000000 }
|
|
};
|
|
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
|
|
}
|
|
|
|
|
|
Native_region * Platform::_core_only_mmio_regions(unsigned const i)
|
|
{
|
|
static Native_region _regions[] =
|
|
{
|
|
/* core UART */
|
|
{ Board::UART_1_MMIO_BASE, Board::UART_1_MMIO_SIZE },
|
|
|
|
/* core timer */
|
|
{ Board::EPIT_1_MMIO_BASE, Board::EPIT_1_MMIO_SIZE },
|
|
|
|
/* interrupt controller */
|
|
{ Board::AVIC_MMIO_BASE, Board::AVIC_MMIO_SIZE },
|
|
|
|
/* bus interface controller */
|
|
{ Board::AIPS_1_MMIO_BASE, Board::AIPS_1_MMIO_SIZE },
|
|
{ Board::AIPS_2_MMIO_BASE, Board::AIPS_2_MMIO_SIZE },
|
|
};
|
|
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
|
|
}
|
|
|
|
|
|
Cpu::User_context::User_context() { cpsr = Psr::init_user(); }
|