53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* (C) Copyright 2000-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <mach/mpc5xxx.h>
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#include <types.h>
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/*
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* Breath some life into the CPU...
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*
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* initialize a bunch of registers.
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*/
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int cpu_init(void)
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{
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/* enable timebase */
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*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 13);
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/* Enable snooping for RAM */
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*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 15);
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*(vu_long *)(MPC5XXX_XLBARB + 0x70) = 0 | 0x1d;
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/* Configure the XLB Arbiter */
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*(vu_long *)MPC5XXX_XLBARB_MPRIEN = 0xff;
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*(vu_long *)MPC5XXX_XLBARB_MPRIVAL = 0x11111111;
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/* mask all interrupts */
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*(vu_long *)MPC5XXX_ICTL_PER_MASK = 0xffffff00;
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*(vu_long *)MPC5XXX_ICTL_CRIT |= 0x0001ffff;
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*(vu_long *)MPC5XXX_ICTL_EXT &= ~0x00000f00;
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/* route critical ints to normal ints */
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*(vu_long *)MPC5XXX_ICTL_EXT |= 0x00000001;
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return 0;
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}
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