1c9cf6f986
We are currently reserving one byte more than actually needed by the flash device and overlapping into the next I/O expansion bus window. This a) causes us to allocate an extra page of VM due to ARM ioremap() alignment code and b) could cause problems if another driver tries to request the next expansion bus window. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
136 lines
3.1 KiB
C
136 lines
3.1 KiB
C
/*
|
|
* arch/arm/mach-ixp4xx/coyote-setup.c
|
|
*
|
|
* Board setup for ADI Engineering and IXDGP425 boards
|
|
*
|
|
* Copyright (C) 2003-2005 MontaVista Software, Inc.
|
|
*
|
|
* Author: Deepak Saxena <dsaxena@plexity.net>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/serial_8250.h>
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/memory.h>
|
|
#include <asm/hardware.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/flash.h>
|
|
|
|
void __init coyote_map_io(void)
|
|
{
|
|
ixp4xx_map_io();
|
|
}
|
|
|
|
static struct flash_platform_data coyote_flash_data = {
|
|
.map_name = "cfi_probe",
|
|
.width = 2,
|
|
};
|
|
|
|
static struct resource coyote_flash_resource = {
|
|
.start = COYOTE_FLASH_BASE,
|
|
.end = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device coyote_flash = {
|
|
.name = "IXP4XX-Flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &coyote_flash_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &coyote_flash_resource,
|
|
};
|
|
|
|
static struct resource coyote_uart_resource = {
|
|
.start = IXP4XX_UART2_BASE_PHYS,
|
|
.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct plat_serial8250_port coyote_uart_data[] = {
|
|
{
|
|
.mapbase = IXP4XX_UART2_BASE_PHYS,
|
|
.membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
|
|
.irq = IRQ_IXP4XX_UART2,
|
|
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
|
|
.iotype = UPIO_MEM,
|
|
.regshift = 2,
|
|
.uartclk = IXP4XX_UART_XTAL,
|
|
},
|
|
{ },
|
|
};
|
|
|
|
static struct platform_device coyote_uart = {
|
|
.name = "serial8250",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = coyote_uart_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &coyote_uart_resource,
|
|
};
|
|
|
|
static struct platform_device *coyote_devices[] __initdata = {
|
|
&coyote_flash,
|
|
&coyote_uart
|
|
};
|
|
|
|
static void __init coyote_init(void)
|
|
{
|
|
*IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
|
|
*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
|
|
|
|
if (machine_is_ixdpg425()) {
|
|
coyote_uart_data[0].membase =
|
|
(char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
|
|
coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
|
|
coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
|
|
}
|
|
|
|
|
|
ixp4xx_sys_init();
|
|
platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
|
|
}
|
|
|
|
#ifdef CONFIG_ARCH_ADI_COYOTE
|
|
MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
|
|
/* Maintainer: MontaVista Software, Inc. */
|
|
.phys_ram = PHYS_OFFSET,
|
|
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
|
|
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
|
|
.map_io = coyote_map_io,
|
|
.init_irq = ixp4xx_init_irq,
|
|
.timer = &ixp4xx_timer,
|
|
.boot_params = 0x0100,
|
|
.init_machine = coyote_init,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
/*
|
|
* IXDPG425 is identical to Coyote except for which serial port
|
|
* is connected.
|
|
*/
|
|
#ifdef CONFIG_MACH_IXDPG425
|
|
MACHINE_START(IXDPG425, "Intel IXDPG425")
|
|
/* Maintainer: MontaVista Software, Inc. */
|
|
.phys_ram = PHYS_OFFSET,
|
|
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
|
|
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
|
|
.map_io = coyote_map_io,
|
|
.init_irq = ixp4xx_init_irq,
|
|
.timer = &ixp4xx_timer,
|
|
.boot_params = 0x0100,
|
|
.init_machine = coyote_init,
|
|
MACHINE_END
|
|
#endif
|
|
|