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alistair23-linux/arch/arm/mach-pxa/pcm027.c
Eric Miao 51c62982a3 [ARM] pxa: introduce pxa{25x,27x,300,320,930}.h for board usage 
Considering the header mess ATM, it is not always possible to include
the correct header files within board code. Let's keep this simple:

  <mach/pxa25x.h>  - for pxa25x based platforms
  <mach/pxa27x.h>  - for pxa27x based platforms
  <mach/pxa300.h>  - for pxa300 based platforms
  <mach/pxa320.h>  - for pxa320 based platforms
  <mach/pxa930.h>  - for pxa930 based platforms

NOTE:

1. one header one board file, they are not compatible (i.e. they have
   conflicting definitions which won't compile if included together).

2. Unless strictly necessary, the following header files are considered
   to be SoC files use _only_, and is not recommended to be included in
   board code:

    <mach/hardware.h>
    <mach/pxa-regs.h>
    <mach/pxa2xx-regs.h>
    <mach/pxa3xx-regs.h>
    <mach/mfp.h>
    <mach/mfp-pxa2xx.h>
    <mach/mfp-pxa25x.h>
    <mach/mfp-pxa27x.h>
    <mach/mfp-pxa3xx.h>
    <mach/mfp-pxa300.h>
    <mach/mfp-pxa320.h>
    <mach/mfp-pxa930.h>

Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09 21:22:36 +08:00

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/*
* 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/spi/max7301.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/pxa27x.h>
#include <mach/pxa2xx_spi.h>
#include <mach/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
*/
static unsigned long pcm027_pin_config[] __initdata = {
/* Chip Selects */
GPIO20_nSDCS_2,
GPIO21_nSDCS_3,
GPIO15_nCS_1,
GPIO78_nCS_2,
GPIO80_nCS_4,
GPIO33_nCS_5, /* Ethernet */
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
/* GPIO */
GPIO52_GPIO, /* IRQ from network controller */
#ifdef CONFIG_LEDS_GPIO
GPIO90_GPIO, /* PCM027_LED_CPU */
GPIO91_GPIO, /* PCM027_LED_HEART_BEAT */
#endif
GPIO114_GPIO, /* IRQ from CAN controller */
};
/*
* 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,
};
/*
* SPI host and devices
*/
static struct pxa2xx_spi_master pxa_ssp_master_info = {
.num_chipselect = 1,
};
static struct max7301_platform_data max7301_info = {
.base = -1,
};
/* bus_num must match id in pxa2xx_set_spi_info() call */
static struct spi_board_info spi_board_info[] __initdata = {
{
.modalias = "max7301",
.platform_data = &max7301_info,
.max_speed_hz = 13000000,
.bus_num = 1,
.chip_select = 0,
.mode = SPI_MODE_0,
},
};
/*
* NOR flash
*/
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;
pxa2xx_mfp_config(pcm027_pin_config, ARRAY_SIZE(pcm027_pin_config));
platform_add_devices(devices, ARRAY_SIZE(devices));
/* at last call the baseboard to initialize itself */
#ifdef CONFIG_MACH_PCM990_BASEBOARD
pcm990_baseboard_init();
#endif
pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}
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
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