/*
* 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/spi/pxa2xx_spi.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/pxa27x.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));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
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)
{
pxa27x_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 */
.atag_offset = 0x100,
.map_io = pcm027_map_io,
.nr_irqs = PCM027_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_time = pxa_timer_init,
.init_machine = pcm027_init,
.restart = pxa_restart,
MACHINE_END