- 根目录:
- arch
- arm
- mach-ixp4xx
- vulcan-setup.c
/*
* arch/arm/mach-ixp4xx/vulcan-setup.c
*
* Arcom/Eurotech Vulcan board-setup
*
* Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
*
* based on fsg-setup.c:
* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
*/
#include <linux/if_ether.h>
#include <linux/irq.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/io.h>
#include <linux/w1-gpio.h>
#include <linux/mtd/plat-ram.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
static struct flash_platform_data vulcan_flash_data = {
.map_name = "cfi_probe",
.width = 2,
};
static struct resource vulcan_flash_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device vulcan_flash = {
.name = "IXP4XX-Flash",
.id = 0,
.dev = {
.platform_data = &vulcan_flash_data,
},
.resource = &vulcan_flash_resource,
.num_resources = 1,
};
static struct platdata_mtd_ram vulcan_sram_data = {
.mapname = "Vulcan SRAM",
.bankwidth = 1,
};
static struct resource vulcan_sram_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device vulcan_sram = {
.name = "mtd-ram",
.id = 0,
.dev = {
.platform_data = &vulcan_sram_data,
},
.resource = &vulcan_sram_resource,
.num_resources = 1,
};
static struct resource vulcan_uart_resources[] = {
[0] = {
.start = IXP4XX_UART1_BASE_PHYS,
.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IXP4XX_UART2_BASE_PHYS,
.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
[2] = {
.flags = IORESOURCE_MEM,
},
};
static struct plat_serial8250_port vulcan_uart_data[] = {
[0] = {
.mapbase = IXP4XX_UART1_BASE_PHYS,
.membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
.irq = IRQ_IXP4XX_UART1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = IXP4XX_UART_XTAL,
},
[1] = {
.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,
},
[2] = {
.irq = IXP4XX_GPIO_IRQ(4),
.irqflags = IRQF_TRIGGER_LOW,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.uartclk = 1843200,
},
[3] = {
.irq = IXP4XX_GPIO_IRQ(4),
.irqflags = IRQF_TRIGGER_LOW,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.uartclk = 1843200,
},
{ }
};
static struct platform_device vulcan_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = vulcan_uart_data,
},
.resource = vulcan_uart_resources,
.num_resources = ARRAY_SIZE(vulcan_uart_resources),
};
static struct eth_plat_info vulcan_plat_eth[] = {
[0] = {
.phy = 0,
.rxq = 3,
.txreadyq = 20,
},
[1] = {
.phy = 1,
.rxq = 4,
.txreadyq = 21,
},
};
static struct platform_device vulcan_eth[] = {
[0] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev = {
.platform_data = &vulcan_plat_eth[0],
},
},
[1] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev = {
.platform_data = &vulcan_plat_eth[1],
},
},
};
static struct resource vulcan_max6369_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device vulcan_max6369 = {
.name = "max6369_wdt",
.id = -1,
.resource = &vulcan_max6369_resource,
.num_resources = 1,
};
static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
.pin = 14,
.ext_pullup_enable_pin = -EINVAL,
};
static struct platform_device vulcan_w1_gpio = {
.name = "w1-gpio",
.id = 0,
.dev = {
.platform_data = &vulcan_w1_gpio_pdata,
},
};
static struct platform_device *vulcan_devices[] __initdata = {
&vulcan_uart,
&vulcan_flash,
&vulcan_sram,
&vulcan_max6369,
&vulcan_eth[0],
&vulcan_eth[1],
&vulcan_w1_gpio,
};
static void __init vulcan_init(void)
{
ixp4xx_sys_init();
/* Flash is spread over both CS0 and CS1 */
vulcan_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
vulcan_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
*IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN |
IXP4XX_EXP_BUS_STROBE_T(3) |
IXP4XX_EXP_BUS_SIZE(0xF) |
IXP4XX_EXP_BUS_BYTE_RD16 |
IXP4XX_EXP_BUS_WR_EN;
*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
/* SRAM on CS2, (256kB, 8bit, writable) */
vulcan_sram_resource.start = IXP4XX_EXP_BUS_BASE(2);
vulcan_sram_resource.end = IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1;
*IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN |
IXP4XX_EXP_BUS_STROBE_T(1) |
IXP4XX_EXP_BUS_HOLD_T(2) |
IXP4XX_EXP_BUS_SIZE(9) |
IXP4XX_EXP_BUS_SPLT_EN |
IXP4XX_EXP_BUS_WR_EN |
IXP4XX_EXP_BUS_BYTE_EN;
/* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */
vulcan_uart_resources[2].start = IXP4XX_EXP_BUS_BASE(3);
vulcan_uart_resources[2].end = IXP4XX_EXP_BUS_BASE(3) + 16 - 1;
vulcan_uart_data[2].mapbase = vulcan_uart_resources[2].start;
vulcan_uart_data[3].mapbase = vulcan_uart_data[2].mapbase + 8;
*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
IXP4XX_EXP_BUS_STROBE_T(3) |
IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)|
IXP4XX_EXP_BUS_WR_EN |
IXP4XX_EXP_BUS_BYTE_EN;
/* GPIOS on CS4 (512 bytes, 8bits, writable) */
*IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN |
IXP4XX_EXP_BUS_WR_EN |
IXP4XX_EXP_BUS_BYTE_EN;
/* max6369 on CS5 (512 bytes, 8bits, writable) */
vulcan_max6369_resource.start = IXP4XX_EXP_BUS_BASE(5);
vulcan_max6369_resource.end = IXP4XX_EXP_BUS_BASE(5);
*IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN |
IXP4XX_EXP_BUS_WR_EN |
IXP4XX_EXP_BUS_BYTE_EN;
platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices));
}
MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
/* Maintainer: Marc Zyngier <maz@misterjones.org> */
.map_io = ixp4xx_map_io,
.init_early = ixp4xx_init_early,
.init_irq = ixp4xx_init_irq,
.init_time = ixp4xx_timer_init,
.atag_offset = 0x100,
.init_machine = vulcan_init,
#if defined(CONFIG_PCI)
.dma_zone_size = SZ_64M,
#endif
.restart = ixp4xx_restart,
MACHINE_END