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ARM: pxa3xx: add generic DT machine code

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Add a DT_MACHINE_START entry for PXA3xx machines and a auxdata table for
some of the devices. This file can be extended to also support pxa2xx
and pxa9xx boards.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
This commit is contained in:
Daniel Mack 2012-07-25 17:54:41 +02:00 committed by Haojian Zhuang
parent 82ce44d104
commit e7749a266b
3 changed files with 78 additions and 0 deletions
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12
arch/arm/mach-pxa/Kconfig
View file

@ -25,6 +25,18 @@ config PXA_V7_MACH_AUTO
if !ARCH_PXA_V7
comment "Intel/Marvell Dev Platforms (sorted by hardware release time)"
config MACH_PXA3XX_DT
bool "Support PXA3xx platforms from device tree"
select PXA3xx
select CPU_PXA300
select POWER_SUPPLY
select HAVE_PWM
select USE_OF
help
Include support for Marvell PXA3xx based platforms using
the device tree. Needn't select any other machine while
MACH_PXA3XX_DT is enabled.
config ARCH_LUBBOCK
bool "Intel DBPXA250 Development Platform (aka Lubbock)"
select PXA25x

3
arch/arm/mach-pxa/Makefile
View file

@ -26,6 +26,9 @@ obj-$(CONFIG_CPU_PXA930) += pxa930.o
# NOTE: keep the order of boards in accordance to their order in Kconfig
# Device Tree support
obj-$(CONFIG_MACH_PXA3XX_DT) += pxa-dt.o
# Intel/Marvell Dev Platforms
obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o
obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o

63
arch/arm/mach-pxa/pxa-dt.c Normal file
View file

@ -0,0 +1,63 @@
/*
* linux/arch/arm/mach-pxa/pxa-dt.c
*
* Copyright (C) 2012 Daniel Mack
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* publishhed by the Free Software Foundation.
*/
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/irqs.h>
#include <mach/pxa3xx.h>
#include "generic.h"
#ifdef CONFIG_PXA3xx
extern void __init pxa3xx_dt_init_irq(void);
static const struct of_dev_auxdata pxa3xx_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("mrvl,pxa-uart", 0x40100000, "pxa2xx-uart.0", NULL),
OF_DEV_AUXDATA("mrvl,pxa-uart", 0x40200000, "pxa2xx-uart.1", NULL),
OF_DEV_AUXDATA("mrvl,pxa-uart", 0x40700000, "pxa2xx-uart.2", NULL),
OF_DEV_AUXDATA("mrvl,pxa-uart", 0x41600000, "pxa2xx-uart.3", NULL),
OF_DEV_AUXDATA("marvell,pxa-mmc", 0x41100000, "pxa2xx-mci.0", NULL),
OF_DEV_AUXDATA("mrvl,pxa-gpio", 0x40e00000, "pxa-gpio", NULL),
OF_DEV_AUXDATA("marvell,pxa-ohci", 0x4c000000, "pxa27x-ohci", NULL),
OF_DEV_AUXDATA("mrvl,pxa-i2c", 0x40301680, "pxa2xx-i2c.0", NULL),
OF_DEV_AUXDATA("mrvl,pwri2c", 0x40f500c0, "pxa3xx-i2c.1", NULL),
OF_DEV_AUXDATA("marvell,pxa3xx-nand", 0x43100000, "pxa3xx-nand", NULL),
{}
};
static void __init pxa3xx_dt_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table,
pxa3xx_auxdata_lookup, NULL);
}
static const char *pxa3xx_dt_board_compat[] __initdata = {
"marvell,pxa300",
"marvell,pxa310",
"marvell,pxa320",
NULL,
};
#endif
#ifdef CONFIG_PXA3xx
DT_MACHINE_START(PXA_DT, "Marvell PXA3xx (Device Tree Support)")
.map_io = pxa3xx_map_io,
.init_irq = pxa3xx_dt_init_irq,
.handle_irq = pxa3xx_handle_irq,
.timer = &pxa_timer,
.restart = pxa_restart,
.init_machine = pxa3xx_dt_init,
.dt_compat = pxa3xx_dt_board_compat,
MACHINE_END
#endif