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[ARM] 4744/1: pcm027: add support for phyCORE-PXA270 CPU module

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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: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
tirimbino
Robert Schwebel 17 years ago committed by Russell King
parent e7b3dc7ef1
commit 34e31d871e
5 changed files with 306 additions and 1 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 5
      arch/arm/mach-pxa/Kconfig
  2. 1
      arch/arm/mach-pxa/Makefile
  3. 216
      arch/arm/mach-pxa/pcm027.c
  4. 10
      include/asm-arm/arch-pxa/irqs.h
  5. 75
      include/asm-arm/arch-pxa/pcm027.h

5
arch/arm/mach-pxa/Kconfig
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@ -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

1
arch/arm/mach-pxa/Makefile
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@ -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

216
arch/arm/mach-pxa/pcm027.c
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@ -0,0 +1,216 @@
/*
* 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

10
include/asm-arm/arch-pxa/irqs.h
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@ -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

75
include/asm-arm/arch-pxa/pcm027.h
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@ -0,0 +1,75 @@
/*
* 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);
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