215 строки
4.6 KiB
C
215 строки
4.6 KiB
C
/*
|
|
* arch/arm/mach-iop32x/em7210.c
|
|
*
|
|
* Board support code for the Lanner EM7210 platforms.
|
|
*
|
|
* Based on arch/arm/mach-iop32x/iq31244.c file.
|
|
*
|
|
* Copyright (C) 2007 Arnaud Patard <arnaud.patard@rtp-net.org>
|
|
*
|
|
* 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/mm.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/serial_8250.h>
|
|
#include <linux/mtd/physmap.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/i2c.h>
|
|
#include <mach/hardware.h>
|
|
#include <linux/io.h>
|
|
#include <linux/irq.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/pci.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/mach-types.h>
|
|
#include <mach/time.h>
|
|
|
|
static void __init em7210_timer_init(void)
|
|
{
|
|
/* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */
|
|
/* 33.333 MHz crystal. */
|
|
iop_init_time(200000000);
|
|
}
|
|
|
|
static struct sys_timer em7210_timer = {
|
|
.init = em7210_timer_init,
|
|
.offset = iop_gettimeoffset,
|
|
};
|
|
|
|
/*
|
|
* EM7210 RTC
|
|
*/
|
|
static struct i2c_board_info __initdata em7210_i2c_devices[] = {
|
|
{
|
|
I2C_BOARD_INFO("rs5c372a", 0x32),
|
|
},
|
|
};
|
|
|
|
/*
|
|
* EM7210 I/O
|
|
*/
|
|
static struct map_desc em7210_io_desc[] __initdata = {
|
|
{ /* on-board devices */
|
|
.virtual = IQ31244_UART,
|
|
.pfn = __phys_to_pfn(IQ31244_UART),
|
|
.length = 0x00100000,
|
|
.type = MT_DEVICE,
|
|
},
|
|
};
|
|
|
|
void __init em7210_map_io(void)
|
|
{
|
|
iop3xx_map_io();
|
|
iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc));
|
|
}
|
|
|
|
|
|
/*
|
|
* EM7210 PCI
|
|
*/
|
|
#define INTA IRQ_IOP32X_XINT0
|
|
#define INTB IRQ_IOP32X_XINT1
|
|
#define INTC IRQ_IOP32X_XINT2
|
|
#define INTD IRQ_IOP32X_XINT3
|
|
|
|
static int __init
|
|
em7210_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
static int pci_irq_table[][4] = {
|
|
/*
|
|
* PCI IDSEL/INTPIN->INTLINE
|
|
* A B C D
|
|
*/
|
|
{INTB, INTB, INTB, INTB}, /* console / uart */
|
|
{INTA, INTA, INTA, INTA}, /* 1st 82541 */
|
|
{INTD, INTD, INTD, INTD}, /* 2nd 82541 */
|
|
{INTC, INTC, INTC, INTC}, /* GD31244 */
|
|
{INTD, INTA, INTA, INTA}, /* mini-PCI */
|
|
{INTD, INTC, INTA, INTA}, /* NEC USB */
|
|
};
|
|
|
|
if (pin < 1 || pin > 4)
|
|
return -1;
|
|
|
|
return pci_irq_table[slot % 6][pin - 1];
|
|
}
|
|
|
|
static struct hw_pci em7210_pci __initdata = {
|
|
.swizzle = pci_std_swizzle,
|
|
.nr_controllers = 1,
|
|
.setup = iop3xx_pci_setup,
|
|
.preinit = iop3xx_pci_preinit,
|
|
.scan = iop3xx_pci_scan_bus,
|
|
.map_irq = em7210_pci_map_irq,
|
|
};
|
|
|
|
static int __init em7210_pci_init(void)
|
|
{
|
|
if (machine_is_em7210())
|
|
pci_common_init(&em7210_pci);
|
|
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(em7210_pci_init);
|
|
|
|
|
|
/*
|
|
* EM7210 Flash
|
|
*/
|
|
static struct physmap_flash_data em7210_flash_data = {
|
|
.width = 2,
|
|
};
|
|
|
|
static struct resource em7210_flash_resource = {
|
|
.start = 0xf0000000,
|
|
.end = 0xf1ffffff,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device em7210_flash_device = {
|
|
.name = "physmap-flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &em7210_flash_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &em7210_flash_resource,
|
|
};
|
|
|
|
|
|
/*
|
|
* EM7210 UART
|
|
* The physical address of the serial port is 0xfe800000,
|
|
* so it can be used for physical and virtual address.
|
|
*/
|
|
static struct plat_serial8250_port em7210_serial_port[] = {
|
|
{
|
|
.mapbase = IQ31244_UART,
|
|
.membase = (char *)IQ31244_UART,
|
|
.irq = IRQ_IOP32X_XINT1,
|
|
.flags = UPF_SKIP_TEST,
|
|
.iotype = UPIO_MEM,
|
|
.regshift = 0,
|
|
.uartclk = 1843200,
|
|
},
|
|
{ },
|
|
};
|
|
|
|
static struct resource em7210_uart_resource = {
|
|
.start = IQ31244_UART,
|
|
.end = IQ31244_UART + 7,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device em7210_serial_device = {
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM,
|
|
.dev = {
|
|
.platform_data = em7210_serial_port,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &em7210_uart_resource,
|
|
};
|
|
|
|
void em7210_power_off(void)
|
|
{
|
|
*IOP3XX_GPOE &= 0xfe;
|
|
*IOP3XX_GPOD |= 0x01;
|
|
}
|
|
|
|
static void __init em7210_init_machine(void)
|
|
{
|
|
platform_device_register(&em7210_serial_device);
|
|
platform_device_register(&iop3xx_i2c0_device);
|
|
platform_device_register(&iop3xx_i2c1_device);
|
|
platform_device_register(&em7210_flash_device);
|
|
platform_device_register(&iop3xx_dma_0_channel);
|
|
platform_device_register(&iop3xx_dma_1_channel);
|
|
|
|
i2c_register_board_info(0, em7210_i2c_devices,
|
|
ARRAY_SIZE(em7210_i2c_devices));
|
|
|
|
|
|
pm_power_off = em7210_power_off;
|
|
}
|
|
|
|
MACHINE_START(EM7210, "Lanner EM7210")
|
|
.phys_io = IQ31244_UART,
|
|
.io_pg_offst = ((IQ31244_UART) >> 18) & 0xfffc,
|
|
.boot_params = 0xa0000100,
|
|
.map_io = em7210_map_io,
|
|
.init_irq = iop32x_init_irq,
|
|
.timer = &em7210_timer,
|
|
.init_machine = em7210_init_machine,
|
|
MACHINE_END
|