156 строки
4.2 KiB
C
156 строки
4.2 KiB
C
/*
|
|
* BRIEF MODULE DESCRIPTION
|
|
* MyCable XXS1500 board support
|
|
*
|
|
* Copyright 2003, 2008 MontaVista Software Inc.
|
|
* Author: MontaVista Software, Inc. <source@mvista.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/pm.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/reboot.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/mach-au1x00/au1000.h>
|
|
#include <prom.h>
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return "XXS1500";
|
|
}
|
|
|
|
void __init prom_init(void)
|
|
{
|
|
unsigned char *memsize_str;
|
|
unsigned long memsize;
|
|
|
|
prom_argc = fw_arg0;
|
|
prom_argv = (char **)fw_arg1;
|
|
prom_envp = (char **)fw_arg2;
|
|
|
|
prom_init_cmdline();
|
|
|
|
memsize_str = prom_getenv("memsize");
|
|
if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
|
|
memsize = 0x04000000;
|
|
|
|
add_memory_region(0, memsize, BOOT_MEM_RAM);
|
|
}
|
|
|
|
void prom_putchar(char c)
|
|
{
|
|
alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
|
|
}
|
|
|
|
static void xxs1500_reset(char *c)
|
|
{
|
|
/* Jump to the reset vector */
|
|
__asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
|
|
}
|
|
|
|
static void xxs1500_power_off(void)
|
|
{
|
|
while (1)
|
|
asm volatile (
|
|
" .set mips32 \n"
|
|
" wait \n"
|
|
" .set mips0 \n");
|
|
}
|
|
|
|
void __init board_setup(void)
|
|
{
|
|
u32 pin_func;
|
|
|
|
pm_power_off = xxs1500_power_off;
|
|
_machine_halt = xxs1500_power_off;
|
|
_machine_restart = xxs1500_reset;
|
|
|
|
alchemy_gpio1_input_enable();
|
|
alchemy_gpio2_enable();
|
|
|
|
/* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
|
|
pin_func = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PF_UR3;
|
|
pin_func |= SYS_PF_UR3;
|
|
alchemy_wrsys(pin_func, AU1000_SYS_PINFUNC);
|
|
|
|
/* Enable UART */
|
|
alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
|
|
/* Enable DTR (MCR bit 0) = USB power up */
|
|
__raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18));
|
|
wmb();
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
static struct resource xxs1500_pcmcia_res[] = {
|
|
{
|
|
.name = "pcmcia-io",
|
|
.flags = IORESOURCE_MEM,
|
|
.start = AU1000_PCMCIA_IO_PHYS_ADDR,
|
|
.end = AU1000_PCMCIA_IO_PHYS_ADDR + 0x000400000 - 1,
|
|
},
|
|
{
|
|
.name = "pcmcia-attr",
|
|
.flags = IORESOURCE_MEM,
|
|
.start = AU1000_PCMCIA_ATTR_PHYS_ADDR,
|
|
.end = AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
|
|
},
|
|
{
|
|
.name = "pcmcia-mem",
|
|
.flags = IORESOURCE_MEM,
|
|
.start = AU1000_PCMCIA_MEM_PHYS_ADDR,
|
|
.end = AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
|
|
},
|
|
};
|
|
|
|
static struct platform_device xxs1500_pcmcia_dev = {
|
|
.name = "xxs1500_pcmcia",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(xxs1500_pcmcia_res),
|
|
.resource = xxs1500_pcmcia_res,
|
|
};
|
|
|
|
static struct platform_device *xxs1500_devs[] __initdata = {
|
|
&xxs1500_pcmcia_dev,
|
|
};
|
|
|
|
static int __init xxs1500_dev_init(void)
|
|
{
|
|
irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
|
|
irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO207_INT, IRQ_TYPE_LEVEL_LOW);
|
|
|
|
irq_set_irq_type(AU1500_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO2_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);
|
|
irq_set_irq_type(AU1500_GPIO4_INT, IRQ_TYPE_LEVEL_LOW); /* CF irq */
|
|
irq_set_irq_type(AU1500_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);
|
|
|
|
return platform_add_devices(xxs1500_devs,
|
|
ARRAY_SIZE(xxs1500_devs));
|
|
}
|
|
device_initcall(xxs1500_dev_init);
|