forked from Minki/linux
84659ab585
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 Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
|
|
* Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
|
|
*
|
|
* The code contained herein is licensed under the GNU General Public
|
|
* License. You may obtain a copy of the GNU General Public License
|
|
* Version 2 or later at the following locations:
|
|
*
|
|
* http://www.opensource.org/licenses/gpl-license.html
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*
|
|
* Create static mapping between physical to virtual memory.
|
|
*/
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/common.h>
|
|
#include <mach/iomux-v3.h>
|
|
|
|
/*
|
|
* Define the MX51 memory map.
|
|
*/
|
|
static struct map_desc mxc_io_desc[] __initdata = {
|
|
{
|
|
.virtual = MX51_IRAM_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX51_IRAM_BASE_ADDR),
|
|
.length = MX51_IRAM_SIZE,
|
|
.type = MT_DEVICE
|
|
}, {
|
|
.virtual = MX51_DEBUG_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX51_DEBUG_BASE_ADDR),
|
|
.length = MX51_DEBUG_SIZE,
|
|
.type = MT_DEVICE
|
|
}, {
|
|
.virtual = MX51_AIPS1_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX51_AIPS1_BASE_ADDR),
|
|
.length = MX51_AIPS1_SIZE,
|
|
.type = MT_DEVICE
|
|
}, {
|
|
.virtual = MX51_SPBA0_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX51_SPBA0_BASE_ADDR),
|
|
.length = MX51_SPBA0_SIZE,
|
|
.type = MT_DEVICE
|
|
}, {
|
|
.virtual = MX51_AIPS2_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX51_AIPS2_BASE_ADDR),
|
|
.length = MX51_AIPS2_SIZE,
|
|
.type = MT_DEVICE
|
|
},
|
|
};
|
|
|
|
/*
|
|
* This function initializes the memory map. It is called during the
|
|
* system startup to create static physical to virtual memory mappings
|
|
* for the IO modules.
|
|
*/
|
|
void __init mx51_map_io(void)
|
|
{
|
|
mxc_set_cpu_type(MXC_CPU_MX51);
|
|
mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
|
|
mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG_BASE_ADDR));
|
|
iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
|
|
}
|
|
|
|
int imx51_register_gpios(void);
|
|
|
|
void __init mx51_init_irq(void)
|
|
{
|
|
unsigned long tzic_addr;
|
|
void __iomem *tzic_virt;
|
|
|
|
if (mx51_revision() < MX51_CHIP_REV_2_0)
|
|
tzic_addr = MX51_TZIC_BASE_ADDR_TO1;
|
|
else
|
|
tzic_addr = MX51_TZIC_BASE_ADDR;
|
|
|
|
tzic_virt = ioremap(tzic_addr, SZ_16K);
|
|
if (!tzic_virt)
|
|
panic("unable to map TZIC interrupt controller\n");
|
|
|
|
tzic_init_irq(tzic_virt);
|
|
imx51_register_gpios();
|
|
}
|