c9a28fa7b9
This patch adds a PXA2xx specific header file to control chip setup. Without, the PCM027 BSP can't be built. Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de> Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
218 lines
5.1 KiB
C
218 lines
5.1 KiB
C
/*
|
|
* 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-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
|