/* MN103E010 Processor initialisation * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #include <linux/kernel.h> #include <asm/rtc.h> /* * initialise the on-silicon processor peripherals */ asmlinkage void __init processor_init(void) { int loop; /* set up the exception table first */ for (loop = 0x000; loop < 0x400; loop += 8) __set_intr_stub(loop, __common_exception); __set_intr_stub(EXCEP_ITLBMISS, itlb_miss); __set_intr_stub(EXCEP_DTLBMISS, dtlb_miss); __set_intr_stub(EXCEP_IAERROR, itlb_aerror); __set_intr_stub(EXCEP_DAERROR, dtlb_aerror); __set_intr_stub(EXCEP_BUSERROR, raw_bus_error); __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault); __set_intr_stub(EXCEP_SYSCALL0, system_call); __set_intr_stub(EXCEP_NMI, nmi_handler); __set_intr_stub(EXCEP_WDT, nmi_handler); __set_intr_stub(EXCEP_IRQ_LEVEL0, irq_handler); __set_intr_stub(EXCEP_IRQ_LEVEL1, irq_handler); __set_intr_stub(EXCEP_IRQ_LEVEL2, irq_handler); __set_intr_stub(EXCEP_IRQ_LEVEL3, irq_handler); __set_intr_stub(EXCEP_IRQ_LEVEL4, irq_handler); __set_intr_stub(EXCEP_IRQ_LEVEL5, irq_handler); __set_intr_stub(EXCEP_IRQ_LEVEL6, irq_handler); IVAR0 = EXCEP_IRQ_LEVEL0; IVAR1 = EXCEP_IRQ_LEVEL1; IVAR2 = EXCEP_IRQ_LEVEL2; IVAR3 = EXCEP_IRQ_LEVEL3; IVAR4 = EXCEP_IRQ_LEVEL4; IVAR5 = EXCEP_IRQ_LEVEL5; IVAR6 = EXCEP_IRQ_LEVEL6; mn10300_dcache_flush_inv(); mn10300_icache_inv(); /* disable all interrupts and set to priority 6 (lowest) */ for (loop = 0; loop < NR_IRQS; loop++) GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; /* clear the timers */ TM0MD = 0; TM1MD = 0; TM2MD = 0; TM3MD = 0; TM4MD = 0; TM5MD = 0; TM6MD = 0; TM6MDA = 0; TM6MDB = 0; TM7MD = 0; TM8MD = 0; TM9MD = 0; TM10MD = 0; TM11MD = 0; calibrate_clock(); }