xp860.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:2k
- /*
- * linux/arch/arm/mach-sa1100/xp860.c
- */
- #include <linux/init.h>
- #include <linux/kernel.h>
- #include <linux/delay.h>
- #include <linux/pm.h>
- #include <linux/tty.h>
- #include <asm/hardware.h>
- #include <asm/setup.h>
- #include <asm/mach/arch.h>
- #include <asm/mach/map.h>
- #include <asm/mach/serial_sa1100.h>
- #include "generic.h"
- #include "sa1111.h"
- static void xp860_power_off(void)
- {
- cli();
- GPDR |= GPIO_GPIO20;
- GPSR = GPIO_GPIO20;
- mdelay(1000);
- GPCR = GPIO_GPIO20;
- while(1);
- }
- /*
- * Note: I replaced the sa1111_init() without the full SA1111 initialisation
- * because this machine doesn't appear to use the DMA features. If this is
- * wrong, please look at neponset.c to fix it properly.
- */
- static int __init xp860_init(void)
- {
- pm_power_off = xp860_power_off;
- /*
- * Probe for SA1111.
- */
- ret = sa1111_probe(0x40000000);
- if (ret < 0)
- return ret;
- /*
- * We found it. Wake the chip up.
- */
- sa1111_wake();
- return 0;
- }
- __initcall(xp860_init);
- static void __init
- fixup_xp860(struct machine_desc *desc, struct param_struct *params,
- char **cmdline, struct meminfo *mi)
- {
- SET_BANK( 0, 0xc0000000, 32*1024*1024 );
- mi->nr_banks = 1;
- }
- static struct map_desc xp860_io_desc[] __initdata = {
- /* virtual physical length domain r w c b */
- { 0xf0000000, 0x10000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* SCSI */
- { 0xf1000000, 0x18000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* LAN */
- { 0xf4000000, 0x40000000, 0x00800000, DOMAIN_IO, 0, 1, 0, 0 }, /* SA-1111 */
- LAST_DESC
- };
- static void __init xp860_map_io(void)
- {
- sa1100_map_io();
- iotable_init(xp860_io_desc);
- sa1100_register_uart(0, 3);
- sa1100_register_uart(1, 1);
- }
- MACHINE_START(XP860, "XP860")
- BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
- FIXUP(fixup_xp860)
- MAPIO(xp860_map_io)
- INITIRQ(sa1100_init_irq)
- MACHINE_END