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Commit 34e31d87 authored by Robert Schwebel's avatar Robert Schwebel Committed by Russell King
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[ARM] 4744/1: pcm027: add support for phyCORE-PXA270 CPU module 



This patch adds main support for the generic phyCORE-PXA270 CPU module
(aka PCM-027). Its as generic as possible to support any kind of baseboard.

Note: Neither the CPU module nor the pcm027.c implementation can work without
a baseboard support. Baseboard support can be added by the PCM-990 or any
custom variant.

V2:
 After comments by Eric Miao:
  - Currently unsupported devices moved into separate patch
  - direct call of baseboard initialisation

V3:
 After comments by Russell King
  - sort include files
  - setting RTC bit for power control removed
 - style problems fixed (discovered by checkpatch.pl)

Signed-off-by: default avatarJuergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e7b3dc7e

arch/arm/mach-pxa/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -123,6 +123,11 @@ config MACH_MAGICIAN 
	select PXA27x

	select IWMMXT



config MACH_PCM027

	bool "Phytec phyCORE-PXA270 CPU module (PCM-027)"

	select PXA27x

	select IWMMXT



endchoice



if PXA_SHARPSL

arch/arm/mach-pxa/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o cor 
obj-$(CONFIG_PXA_SHARP_Cxx00)	+= spitz.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o spitz_pm.o

obj-$(CONFIG_MACH_AKITA)	+= akita-ioexp.o

obj-$(CONFIG_MACH_POODLE)	+= poodle.o corgi_ssp.o

obj-$(CONFIG_MACH_PCM027)	+= pcm027.o

obj-$(CONFIG_MACH_TOSA)		+= tosa.o

obj-$(CONFIG_MACH_EM_X270)	+= em-x270.o

obj-$(CONFIG_MACH_MAGICIAN)	+= magician.o

arch/arm/mach-pxa/pcm027.c

0 → 100644
+216 −0
Original line number Diff line number Diff line 
/*

 *  linux/arch/arm/mach-pxa/pcm027.c

 *  Support for the Phytec phyCORE-PXA270 CPU card (aka PCM-027).

 *

 *  Refer

 *   http://www.phytec.com/products/sbc/ARM-XScale/phyCORE-XScale-PXA270.html

 *  for additional hardware info

 *

 *  Author:	Juergen Kilb

 *  Created:	April 05, 2005

 *  Copyright:	Phytec Messtechnik GmbH

 *  e-Mail:	armlinux@phytec.de

 *

 *  based on Intel Mainstone Board

 *

 *  Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de)

 *

 *  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

 *  published by the Free Software Foundation.

 */



#include <linux/irq.h>

#include <linux/platform_device.h>

#include <linux/mtd/physmap.h>

#include <linux/spi/spi.h>

#include <linux/leds.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/arch/hardware.h>

#include <asm/arch/pxa-regs.h>

#include <asm/arch/pxa2xx_spi.h>

#include <asm/arch/pcm027.h>

#include "generic.h"



/*

 * ABSTRACT:

 *

 * The PXA270 processor comes with a bunch of hardware on its silicon.

 * Not all of this hardware can be used at the same time and not all

 * is routed to module's connectors. Also it depends on the baseboard, what

 * kind of hardware can be used in which way.

 * -> So this file supports the main devices on the CPU card only!

 * Refer pcm990-baseboard.c how to extend this features to get a full

 * blown system with many common interfaces.

 *

 * The PCM-027 supports the following interfaces through its connectors and

 * will be used in pcm990-baseboard.c:

 *

 * - LCD support

 * - MMC support

 * - IDE/CF card

 * - FFUART

 * - BTUART

 * - IRUART

 * - AC97

 * - SSP

 * - SSP3

 *

 * Claimed GPIOs:

 * GPIO0 -> IRQ input from RTC

 * GPIO2 -> SYS_ENA*)

 * GPIO3 -> PWR_SCL

 * GPIO4 -> PWR_SDA

 * GPIO5 -> PowerCap0*)

 * GPIO6 -> PowerCap1*)

 * GPIO7 -> PowerCap2*)

 * GPIO8 -> PowerCap3*)

 * GPIO15 -> /CS1

 * GPIO20 -> /CS2

 * GPIO21 -> /CS3

 * GPIO33 -> /CS5 network controller select

 * GPIO52 -> IRQ from network controller

 * GPIO78 -> /CS2

 * GPIO80 -> /CS4

 * GPIO90 -> LED0

 * GPIO91 -> LED1

 * GPIO114 -> IRQ from CAN controller

 * GPIO117 -> SCL

 * GPIO118 -> SDA

 *

 * *) CPU internal use only

 */



/*

 * SMC91x network controller specific stuff

 */

static struct resource smc91x_resources[] = {

	[0] = {

		.start	= PCM027_ETH_PHYS + 0x300,

		.end	= PCM027_ETH_PHYS + PCM027_ETH_SIZE,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= PCM027_ETH_IRQ,

		.end	= PCM027_ETH_IRQ,

		/* note: smc91x's driver doesn't use the trigger bits yet */

		.flags	= IORESOURCE_IRQ | PCM027_ETH_IRQ_EDGE,

	}

};



static struct platform_device smc91x_device = {

	.name		= "smc91x",

	.id		= 0,

	.num_resources	= ARRAY_SIZE(smc91x_resources),

	.resource	= smc91x_resources,

};



static struct physmap_flash_data pcm027_flash_data = {

	.width  = 4,

};



static struct resource pcm027_flash_resource = {

	.start          = PCM027_FLASH_PHYS,

	.end            = PCM027_FLASH_PHYS + PCM027_FLASH_SIZE - 1 ,

	.flags          = IORESOURCE_MEM,

};



static struct platform_device pcm027_flash = {

	.name           = "physmap-flash",

	.id             = 0,

	.dev            = {

		.platform_data  = &pcm027_flash_data,

	},

	.resource       = &pcm027_flash_resource,

	.num_resources  = 1,

};



#ifdef CONFIG_LEDS_GPIO



static struct gpio_led pcm027_led[] = {

	{

		.name = "led0:red",	/* FIXME */

		.gpio = PCM027_LED_CPU

	},

	{

		.name = "led1:green",	/* FIXME */

		.gpio = PCM027_LED_HEARD_BEAT

	},

};



static struct gpio_led_platform_data pcm027_led_data = {

	.num_leds	= ARRAY_SIZE(pcm027_led),

	.leds		= pcm027_led

};



static struct platform_device pcm027_led_dev = {

	.name		= "leds-gpio",

	.id		= 0,

	.dev		= {

		.platform_data	= &pcm027_led_data,

	},

};



#endif /* CONFIG_LEDS_GPIO */



/*

 * declare the available device resources on this board

 */

static struct platform_device *devices[] __initdata = {

	&smc91x_device,

	&pcm027_flash,

#ifdef CONFIG_LEDS_GPIO

	&pcm027_led_dev

#endif

};



/*

 * pcm027_init - breath some life into the board

 */

static void __init pcm027_init(void)

{

	/* system bus arbiter setting

	 * - Core_Park

	 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4

	 */

	ARB_CNTRL = ARB_CORE_PARK | 0x234;



	platform_add_devices(devices, ARRAY_SIZE(devices));



	/* LEDs (on demand only) */

#ifdef CONFIG_LEDS_GPIO

	pxa_gpio_mode(PCM027_LED_CPU | GPIO_OUT);

	pxa_gpio_mode(PCM027_LED_HEARD_BEAT | GPIO_OUT);

#endif /* CONFIG_LEDS_GPIO */



	/* at last call the baseboard to initialize itself */

#ifdef CONFIG_MACH_PCM990_BASEBOARD

	pcm990_baseboard_init();

#endif

}



static void __init pcm027_map_io(void)

{

	pxa_map_io();



	/* initialize sleep mode regs (wake-up sources, etc) */

	PGSR0 = 0x01308000;

	PGSR1 = 0x00CF0002;

	PGSR2 = 0x0E294000;

	PGSR3 = 0x0000C000;

	PWER  = 0x40000000 | PWER_GPIO0 | PWER_GPIO1;

	PRER  = 0x00000000;

	PFER  = 0x00000003;

}



MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270")

	/* Maintainer: Pengutronix */

	.boot_params	= 0xa0000100,

	.phys_io	= 0x40000000,

	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,

	.map_io		= pcm027_map_io,

	.init_irq	= pxa27x_init_irq,

	.timer		= &pxa_timer,

	.init_machine	= pcm027_init,

MACHINE_END

include/asm-arm/arch-pxa/irqs.h

+9 −1
Original line number Diff line number Diff line
@@ -180,7 +180,8 @@ 
#define NR_IRQS			(IRQ_LOCOMO_SPI_TEND + 1)

#elif defined(CONFIG_ARCH_LUBBOCK) || \

      defined(CONFIG_MACH_LOGICPD_PXA270) || \

      defined(CONFIG_MACH_MAINSTONE)

      defined(CONFIG_MACH_MAINSTONE) || \

      defined(CONFIG_MACH_PCM027)

#define NR_IRQS			(IRQ_BOARD_END)

#else

#define NR_IRQS			(IRQ_BOARD_START)
@@ -227,6 +228,13 @@ 
#define IRQ_LOCOMO_LT_BASE	(IRQ_BOARD_START + 2)

#define IRQ_LOCOMO_SPI_BASE	(IRQ_BOARD_START + 3)



/* phyCORE-PXA270 (PCM027) Interrupts */

#define PCM027_IRQ(x)          (IRQ_BOARD_START + (x))

#define PCM027_BTDET_IRQ       PCM027_IRQ(0)

#define PCM027_FF_RI_IRQ       PCM027_IRQ(1)

#define PCM027_MMCDET_IRQ      PCM027_IRQ(2)

#define PCM027_PM_5V_IRQ       PCM027_IRQ(3)



/* ITE8152 irqs */

/* add IT8152 IRQs beyond BOARD_END */

#ifdef CONFIG_PCI_HOST_ITE8152

include/asm-arm/arch-pxa/pcm027.h

0 → 100644
+75 −0
Original line number Diff line number Diff line 
/*

 * linux/include/asm-arm/arch-pxa/pcm027.h

 *

 * (c) 2003 Phytec Messtechnik GmbH <armlinux@phytec.de>

 * (c) 2007 Juergen Beisert <j.beisert@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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */



/*

 * Definitions of CPU card resources only

 */



/* I2C RTC */

#define PCM027_RTC_IRQ_GPIO	0

#define PCM027_RTC_IRQ		IRQ_GPIO(PCM027_RTC_IRQ_GPIO)

#define PCM027_RTC_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING

#define ADR_PCM027_RTC		0x51	/* I2C address */



/* I2C EEPROM */

#define ADR_PCM027_EEPROM	0x54	/* I2C address */



/* Ethernet chip (SMSC91C111) */

#define PCM027_ETH_IRQ_GPIO	52

#define PCM027_ETH_IRQ		IRQ_GPIO(PCM027_ETH_IRQ_GPIO)

#define PCM027_ETH_IRQ_EDGE	IRQ_TYPE_EDGE_RISING

#define PCM027_ETH_PHYS		PXA_CS5_PHYS

#define PCM027_ETH_SIZE		(1*1024*1024)



/* CAN controller SJA1000 (unsupported yet) */

#define PCM027_CAN_IRQ_GPIO	114

#define PCM027_CAN_IRQ		IRQ_GPIO(PCM027_CAN_IRQ_GPIO)

#define PCM027_CAN_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING

#define PCM027_CAN_PHYS		0x22000000

#define PCM027_CAN_SIZE		0x100



/* SPI GPIO expander (unsupported yet) */

#define PCM027_EGPIO_IRQ_GPIO	27

#define PCM027_EGPIO_IRQ	IRQ_GPIO(PCM027_EGPIO_IRQ_GPIO)

#define PCM027_EGPIO_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING

#define PCM027_EGPIO_CS		24

/*

 * TODO: Switch this pin from dedicated usage to GPIO if

 * more than the MAX7301 device is connected to this SPI bus

 */

#define PCM027_EGPIO_CS_MODE	GPIO24_SFRM_MD



/* Flash memory */

#define PCM027_FLASH_PHYS	0x00000000

#define PCM027_FLASH_SIZE	0x02000000



/* onboard LEDs connected to GPIO */

#define PCM027_LED_CPU		90

#define PCM027_LED_HEARD_BEAT	91



/*

 * This CPU module needs a baseboard to work. After basic initializing

 * its own devices, it calls baseboard's init function.

 * TODO: Add your own basebaord init function and call it from

 * inside pcm027_init(). This example here is for the developmen board.

 * Refer pcm990-baseboard.c

 */

extern void pcm990_baseboard_init(void);