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/*
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* arch / arm / mach - imx / mm - imx21 . c
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*
* 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>
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# include <mach/hardware.h>
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# include <mach/common.h>
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# include <asm/pgtable.h>
# include <asm/mach/map.h>
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# include <mach/gpio.h>
# include <mach/irqs.h>
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# include <mach/iomux-v1.h>
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/* MX21 memory map definition */
static struct map_desc imx21_io_desc [ ] __initdata = {
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/*
* this fixed mapping covers :
* - AIPI1
* - AIPI2
* - AITC
* - ROM Patch
* - and some reserved space
*/
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imx_map_entry ( MX21 , AIPI , MT_DEVICE ) ,
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/*
* this fixed mapping covers :
* - CSI
* - ATA
*/
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imx_map_entry ( MX21 , SAHB1 , MT_DEVICE ) ,
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/*
* this fixed mapping covers :
* - EMI
*/
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imx_map_entry ( MX21 , X_MEMC , MT_DEVICE ) ,
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} ;
/*
* Initialize the memory map . It is called during the
* system startup to create static physical to virtual
* memory map for the IO modules .
*/
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void __init mx21_map_io ( void )
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{
iotable_init ( imx21_io_desc , ARRAY_SIZE ( imx21_io_desc ) ) ;
}
void __init imx21_init_early ( void )
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{
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mxc_set_cpu_type ( MXC_CPU_MX21 ) ;
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mxc_arch_reset_init ( MX21_IO_ADDRESS ( MX21_WDOG_BASE_ADDR ) ) ;
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imx_iomuxv1_init ( MX21_IO_ADDRESS ( MX21_GPIO_BASE_ADDR ) ,
MX21_NUM_GPIO_PORT ) ;
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}
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static struct mxc_gpio_port imx21_gpio_ports [ ] = {
DEFINE_IMX_GPIO_PORT_IRQ ( MX21 , 0 , 1 , MX21_INT_GPIO ) ,
DEFINE_IMX_GPIO_PORT ( MX21 , 1 , 2 ) ,
DEFINE_IMX_GPIO_PORT ( MX21 , 2 , 3 ) ,
DEFINE_IMX_GPIO_PORT ( MX21 , 3 , 4 ) ,
DEFINE_IMX_GPIO_PORT ( MX21 , 4 , 5 ) ,
DEFINE_IMX_GPIO_PORT ( MX21 , 5 , 6 ) ,
} ;
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void __init mx21_init_irq ( void )
{
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mxc_init_irq ( MX21_IO_ADDRESS ( MX21_AVIC_BASE_ADDR ) ) ;
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mxc_gpio_init ( imx21_gpio_ports , ARRAY_SIZE ( imx21_gpio_ports ) ) ;
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}