diff options
Diffstat (limited to 'arch/mn10300/proc-mn2ws0050/proc-init.c')
-rw-r--r-- | arch/mn10300/proc-mn2ws0050/proc-init.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/mn10300/proc-mn2ws0050/proc-init.c b/arch/mn10300/proc-mn2ws0050/proc-init.c deleted file mode 100644 index 25b1b453c515..000000000000 --- a/arch/mn10300/proc-mn2ws0050/proc-init.c +++ /dev/null @@ -1,134 +0,0 @@ -/* MN2WS0050 processor initialisation - * - * Copyright (C) 2005 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 License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/interrupt.h> - -#include <asm/cacheflush.h> -#include <asm/processor.h> -#include <linux/uaccess.h> -#include <asm/io.h> -#include <linux/atomic.h> -#include <asm/smp.h> -#include <asm/pgalloc.h> -#include <asm/busctl-regs.h> -#include <unit/timex.h> -#include <asm/fpu.h> -#include <asm/rtc.h> - -#define MEMCONF __SYSREGC(0xdf800400, u32) - -/* - * 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_FPU_DISABLED, fpu_disabled); - __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; - -#ifndef CONFIG_MN10300_HAS_CACHE_SNOOP - mn10300_dcache_flush_inv(); - mn10300_icache_inv(); -#endif - - /* disable all interrupts and set to priority 6 (lowest) */ -#ifdef CONFIG_SMP - for (loop = 0; loop < GxICR_NUM_IRQS; loop++) - GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; -#else /* !CONFIG_SMP */ - for (loop = 0; loop < NR_IRQS; loop++) - GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; -#endif /* !CONFIG_SMP */ - - /* 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; - TM12MD = 0; - TM13MD = 0; - TM14MD = 0; - TM15MD = 0; - - calibrate_clock(); -} - -/* - * determine the memory size and base from the memory controller regs - */ -void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size) -{ - unsigned long memconf = MEMCONF; - unsigned long size = 0; /* order: MByte */ - - *mem_base = 0x90000000; /* fixed address */ - - switch (memconf & 0x00000003) { - case 0x01: - size = 256 / 8; /* 256 Mbit per chip */ - break; - case 0x02: - size = 512 / 8; /* 512 Mbit per chip */ - break; - case 0x03: - size = 1024 / 8; /* 1 Gbit per chip */ - break; - default: - panic("Invalid SDRAM size"); - break; - } - - printk(KERN_INFO "DDR2-SDRAM: %luMB x 2 @%08lx\n", size, *mem_base); - - *mem_size = (size * 2) << 20; -} |