![Jason Wang](/assets/img/avatar_default.png)
The commit 9a763bf
"get rid of mxc_gpio_init" changed gpio_init
and irq_init sequence. Usually we will call set_irq_chained_handler
in gpio_init functions, this should be called after the irq_init
called, otherwise the chained irq can't get propoer irq_chip and this
irq will remain masked even we called set_irq_chained_handler.
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Tested-by: Eric BĂ©nard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
|
|
* arch/arm/mach-imx/mm-imx21.c
|
|
*
|
|
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/init.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/common.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
/* MX21 memory map definition */
|
|
static struct map_desc imx21_io_desc[] __initdata = {
|
|
/*
|
|
* this fixed mapping covers:
|
|
* - AIPI1
|
|
* - AIPI2
|
|
* - AITC
|
|
* - ROM Patch
|
|
* - and some reserved space
|
|
*/
|
|
{
|
|
.virtual = MX21_AIPI_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX21_AIPI_BASE_ADDR),
|
|
.length = MX21_AIPI_SIZE,
|
|
.type = MT_DEVICE
|
|
},
|
|
/*
|
|
* this fixed mapping covers:
|
|
* - CSI
|
|
* - ATA
|
|
*/
|
|
{
|
|
.virtual = MX21_SAHB1_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX21_SAHB1_BASE_ADDR),
|
|
.length = MX21_SAHB1_SIZE,
|
|
.type = MT_DEVICE
|
|
},
|
|
/*
|
|
* this fixed mapping covers:
|
|
* - EMI
|
|
*/
|
|
{
|
|
.virtual = MX21_X_MEMC_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX21_X_MEMC_BASE_ADDR),
|
|
.length = MX21_X_MEMC_SIZE,
|
|
.type = MT_DEVICE
|
|
},
|
|
};
|
|
|
|
/*
|
|
* Initialize the memory map. It is called during the
|
|
* system startup to create static physical to virtual
|
|
* memory map for the IO modules.
|
|
*/
|
|
void __init mx21_map_io(void)
|
|
{
|
|
mxc_set_cpu_type(MXC_CPU_MX21);
|
|
mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR));
|
|
|
|
iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc));
|
|
}
|
|
|
|
int imx21_register_gpios(void);
|
|
|
|
void __init mx21_init_irq(void)
|
|
{
|
|
mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
|
|
imx21_register_gpios();
|
|
}
|