genode/repos/base/include/spec/imx6/drivers/board_base.h
Stefan Kalkowski 7aff1895bf hw: enable SMP for ARM Cortex A9
This commit enables multi-processing for all Cortex A9 SoCs we currently
support. Moreover, it thereby enables the L2 cache for i.MX6 that was not
enabled until now. However, the QEMU variants hw_pbxa9 and hw_zynq still
only use 1 core, because the busy cpu synchronization used when initializing
multiple Cortex A9 cores leads to horrible boot times on QEMU.

During this work the CPU initialization in general was reworked. From now
on lots of hardware specifics were put into the 'spec' specific files, some
generic hook functions and abstractions thereby were eliminated. This
results to more lean implementations for instance on non-SMP platforms,
or in the x86 case where cache maintainance is a non-issue.

Due to the fact that memory/cache coherency and SMP are closely coupled
on ARM Cortex A9 this commit combines so different aspects.

Fix #1312
Fix #1807
2016-01-26 16:20:18 +01:00

72 lines
1.5 KiB
C++

/*
* \brief Board definitions for the Freescale i.MX6
* \author Nikolay Golikov <nik@ksyslabs.org>
* \author Josef Soentgen
* \author Martin Stein
* \date 2014-02-25
*/
/*
* Copyright (C) 2014-2016 Ksys Labs LLC
* Copyright (C) 2014-2016 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.
*/
#ifndef _INCLUDE__SPEC__IMX6__DRIVERS__BOARD_BASE_H_
#define _INCLUDE__SPEC__IMX6__DRIVERS__BOARD_BASE_H_
namespace Genode
{
/**
* i.MX6 motherboard
*/
struct Board_base;
}
struct Genode::Board_base
{
enum {
/* normal RAM */
RAM0_BASE = 0x10000000,
RAM0_SIZE = 0x80000000,
/* device IO memory */
MMIO_BASE = 0x00000000,
MMIO_SIZE = 0x10000000,
UART_1_IRQ = 58,
UART_1_MMIO_BASE = 0x02020000,
UART_1_MMIO_SIZE = 0x00004000,
/* timer */
EPIT_2_IRQ = 89,
EPIT_2_MMIO_BASE = 0x020d4000,
EPIT_2_MMIO_SIZE = 0x00004000,
/* ARM IP Bus control */
AIPS_1_MMIO_BASE = 0x0207c000,
AIPS_1_MMIO_SIZE = 0x00004000,
AIPS_2_MMIO_BASE = 0x0217c000,
AIPS_2_MMIO_SIZE = 0x00004000,
/* CPU */
CORTEX_A9_PRIVATE_MEM_BASE = 0x00a00000,
CORTEX_A9_PRIVATE_MEM_SIZE = 0x00002000,
CORTEX_A9_PRIVATE_TIMER_CLK = 395037500,
/* L2 cache controller */
PL310_MMIO_BASE = 0x00a02000,
PL310_MMIO_SIZE = 0x00001000,
/* CPU cache */
CACHE_LINE_SIZE_LOG2 = 5,
/* wether board provides ARM security extension */
SECURITY_EXTENSION = 1,
};
};
#endif /* _INCLUDE__SPEC__IMX6__DRIVERS__BOARD_BASE_H_ */