mirror of
https://github.com/brain-hackers/u-boot-brain
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a47a12becf
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de> Acked-by: Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*
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* (C) Copyright 2000-2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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* Rob Taylor, Flying Pig Systems. robt@flyingpig.com
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <mpc824x.h>
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#include <asm/processor.h>
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#include <asm/pci_io.h>
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#include <commproc.h>
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#include "drivers/epic.h"
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int interrupt_init_cpu (unsigned *decrementer_count)
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{
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*decrementer_count = (get_bus_freq (0) / 4) / CONFIG_SYS_HZ;
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/*
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* It's all broken at the moment and I currently don't need
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* interrupts. If you want to fix it, have a look at the epic
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* drivers in dink32 v12. They do everthing and Motorola said
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* I could use the dink source in this project as long as
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* copyright notices remain intact.
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*/
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epicInit (EPIC_DIRECT_IRQ, 0);
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/* EPIC won't generate INT unless Current Task Pri < 15 */
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epicCurTaskPrioSet(0);
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return (0);
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}
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/****************************************************************************/
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/*
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* Handle external interrupts
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*/
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void external_interrupt (struct pt_regs *regs)
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{
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register unsigned long temp;
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pci_readl (CONFIG_SYS_EUMB_ADDR + EPIC_PROC_INT_ACK_REG, temp);
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sync (); /* i'm not convinced this is needed, but dink source has it */
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temp &= 0xff; /*get vector */
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/*TODO: handle them -... */
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epicEOI ();
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}
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/****************************************************************************/
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/*
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* blank int handlers.
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*/
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void
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irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)
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{
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}
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void irq_free_handler (int vec)
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{
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}
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/*TODO: some handlers for winbond and 87308 interrupts
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and what about generic pci inteerupts?
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vga?
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*/
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void timer_interrupt_cpu (struct pt_regs *regs)
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{
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/* nothing to do here */
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return;
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}
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