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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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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
/*
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* arch/arm/mach-imx/mm-imx27.c
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*
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* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <asm/pgtable.h>
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#include <asm/mach/map.h>
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/* MX27 memory map definition */
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static struct map_desc imx27_io_desc[] __initdata = {
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/*
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* this fixed mapping covers:
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* - AIPI1
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* - AIPI2
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* - AITC
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* - ROM Patch
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* - and some reserved space
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*/
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{
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.virtual = MX27_AIPI_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(MX27_AIPI_BASE_ADDR),
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.length = MX27_AIPI_SIZE,
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.type = MT_DEVICE
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},
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/*
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* this fixed mapping covers:
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* - CSI
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* - ATA
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*/
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{
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.virtual = MX27_SAHB1_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(MX27_SAHB1_BASE_ADDR),
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.length = MX27_SAHB1_SIZE,
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.type = MT_DEVICE
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},
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/*
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* this fixed mapping covers:
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* - EMI
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*/
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{
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.virtual = MX27_X_MEMC_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(MX27_X_MEMC_BASE_ADDR),
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.length = MX27_X_MEMC_SIZE,
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.type = MT_DEVICE
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},
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};
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/*
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* Initialize the memory map. It is called during the
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* system startup to create static physical to virtual
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* memory map for the IO modules.
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*/
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void __init mx27_map_io(void)
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{
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mxc_set_cpu_type(MXC_CPU_MX27);
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mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR));
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iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
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}
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int imx27_register_gpios(void);
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void __init mx27_init_irq(void)
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{
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mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR));
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imx27_register_gpios();
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}
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