- 根目录:
- arch
- arm
- mach-pnx4008
- core.c
/*
* arch/arm/mach-pnx4008/core.c
*
* PNX4008 core startup code
*
* Authors: Vitaly Wool, Dmitry Chigirev,
* Grigory Tolstolytkin, Dmitry Pervushin <source@mvista.com>
*
* Based on reference code received from Philips:
* Copyright (C) 2003 Philips Semiconductors
*
* 2005 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/serial_8250.h>
#include <linux/device.h>
#include <linux/spi/spi.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/system_misc.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/irq.h>
#include <mach/clock.h>
#include <mach/dma.h>
struct resource spipnx_0_resources[] = {
{
.start = PNX4008_SPI1_BASE,
.end = PNX4008_SPI1_BASE + SZ_4K,
.flags = IORESOURCE_MEM,
}, {
.start = PER_SPI1_REC_XMIT,
.flags = IORESOURCE_DMA,
}, {
.start = SPI1_INT,
.flags = IORESOURCE_IRQ,
}, {
.flags = 0,
},
};
struct resource spipnx_1_resources[] = {
{
.start = PNX4008_SPI2_BASE,
.end = PNX4008_SPI2_BASE + SZ_4K,
.flags = IORESOURCE_MEM,
}, {
.start = PER_SPI2_REC_XMIT,
.flags = IORESOURCE_DMA,
}, {
.start = SPI2_INT,
.flags = IORESOURCE_IRQ,
}, {
.flags = 0,
}
};
static struct spi_board_info spi_board_info[] __initdata = {
{
.modalias = "m25p80",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0,
},
};
static struct platform_device spipnx_1 = {
.name = "spipnx",
.id = 1,
.num_resources = ARRAY_SIZE(spipnx_0_resources),
.resource = spipnx_0_resources,
.dev = {
.coherent_dma_mask = 0xFFFFFFFF,
},
};
static struct platform_device spipnx_2 = {
.name = "spipnx",
.id = 2,
.num_resources = ARRAY_SIZE(spipnx_1_resources),
.resource = spipnx_1_resources,
.dev = {
.coherent_dma_mask = 0xFFFFFFFF,
},
};
static struct plat_serial8250_port platform_serial_ports[] = {
{
.membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART5_BASE)),
.mapbase = (unsigned long)PNX4008_UART5_BASE,
.irq = IIR5_INT,
.uartclk = PNX4008_UART_CLK,
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
},
{
.membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART3_BASE)),
.mapbase = (unsigned long)PNX4008_UART3_BASE,
.irq = IIR3_INT,
.uartclk = PNX4008_UART_CLK,
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
},
{}
};
static struct platform_device serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = &platform_serial_ports,
},
};
static struct platform_device nand_flash_device = {
.name = "pnx4008-flash",
.id = -1,
.dev = {
.coherent_dma_mask = 0xFFFFFFFF,
},
};
/* The dmamask must be set for OHCI to work */
static u64 ohci_dmamask = ~(u32) 0;
static struct resource ohci_resources[] = {
{
.start = IO_ADDRESS(PNX4008_USB_CONFIG_BASE),
.end = IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0x100),
.flags = IORESOURCE_MEM,
}, {
.start = USB_HOST_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ohci_device = {
.name = "pnx4008-usb-ohci",
.id = -1,
.dev = {
.dma_mask = &ohci_dmamask,
.coherent_dma_mask = 0xffffffff,
},
.num_resources = ARRAY_SIZE(ohci_resources),
.resource = ohci_resources,
};
static struct platform_device sdum_device = {
.name = "pnx4008-sdum",
.id = 0,
.dev = {
.coherent_dma_mask = 0xffffffff,
},
};
static struct platform_device rgbfb_device = {
.name = "pnx4008-rgbfb",
.id = 0,
.dev = {
.coherent_dma_mask = 0xffffffff,
}
};
struct resource watchdog_resources[] = {
{
.start = PNX4008_WDOG_BASE,
.end = PNX4008_WDOG_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device watchdog_device = {
.name = "pnx4008-watchdog",
.id = -1,
.num_resources = ARRAY_SIZE(watchdog_resources),
.resource = watchdog_resources,
};
static struct platform_device *devices[] __initdata = {
&spipnx_1,
&spipnx_2,
&serial_device,
&ohci_device,
&nand_flash_device,
&sdum_device,
&rgbfb_device,
&watchdog_device,
};
extern void pnx4008_uart_init(void);
static void __init pnx4008_init(void)
{
/*disable all START interrupt sources,
and clear all START interrupt flags */
__raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT));
__raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT));
__raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT));
__raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT));
platform_add_devices(devices, ARRAY_SIZE(devices));
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
/* Switch on the UART clocks */
pnx4008_uart_init();
}
static struct map_desc pnx4008_io_desc[] __initdata = {
{
.virtual = IO_ADDRESS(PNX4008_IRAM_BASE),
.pfn = __phys_to_pfn(PNX4008_IRAM_BASE),
.length = SZ_64K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(PNX4008_NDF_FLASH_BASE),
.pfn = __phys_to_pfn(PNX4008_NDF_FLASH_BASE),
.length = SZ_1M - SZ_128K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE),
.pfn = __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE),
.length = SZ_128K * 3,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(PNX4008_DMA_CONFIG_BASE),
.pfn = __phys_to_pfn(PNX4008_DMA_CONFIG_BASE),
.length = SZ_1M,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(PNX4008_AHB2FAB_BASE),
.pfn = __phys_to_pfn(PNX4008_AHB2FAB_BASE),
.length = SZ_1M,
.type = MT_DEVICE,
},
};
void __init pnx4008_map_io(void)
{
iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc));
}
static void pnx4008_restart(char mode, const char *cmd)
{
soft_restart(0);
}
extern struct sys_timer pnx4008_timer;
MACHINE_START(PNX4008, "Philips PNX4008")
/* Maintainer: MontaVista Software Inc. */
.atag_offset = 0x100,
.map_io = pnx4008_map_io,
.init_irq = pnx4008_init_irq,
.init_machine = pnx4008_init,
.timer = &pnx4008_timer,
.restart = pnx4008_restart,
MACHINE_END