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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>
115 lines
3.2 KiB
C
115 lines
3.2 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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*
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* (C) Copyright 2002 (440 port)
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* Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com
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*
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* (C) Copyright 2003 Motorola Inc. (MPC85xx port)
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* Xianghua Xiao (X.Xiao@motorola.com)
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*
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* (C) Copyright 2004, 2007 Freescale Semiconductor. (MPC86xx Port)
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* Jeff Brown
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* Srikanth Srinivasan (srikanth.srinivasan@freescale.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 <mpc86xx.h>
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#include <command.h>
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#include <asm/processor.h>
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int interrupt_init_cpu(unsigned long *decrementer_count)
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{
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volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
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volatile ccsr_pic_t *pic = &immr->im_pic;
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pic->gcr = MPC86xx_PICGCR_RST;
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while (pic->gcr & MPC86xx_PICGCR_RST)
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;
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pic->gcr = MPC86xx_PICGCR_MODE;
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*decrementer_count = get_tbclk() / CONFIG_SYS_HZ;
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debug("interrupt init: tbclk() = %d MHz, decrementer_count = %ld\n",
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(get_tbclk() / 1000000),
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*decrementer_count);
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#ifdef CONFIG_INTERRUPTS
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pic->iivpr1 = 0x810001; /* 50220 enable mcm interrupts */
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debug("iivpr1@%x = %x\n", &pic->iivpr1, pic->iivpr1);
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pic->iivpr2 = 0x810002; /* 50240 enable ddr interrupts */
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debug("iivpr2@%x = %x\n", &pic->iivpr2, pic->iivpr2);
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pic->iivpr3 = 0x810003; /* 50260 enable lbc interrupts */
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debug("iivpr3@%x = %x\n", &pic->iivpr3, pic->iivpr3);
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#if defined(CONFIG_PCI1) || defined(CONFIG_PCIE1)
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pic->iivpr8 = 0x810008; /* enable pcie1 interrupts */
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debug("iivpr8@%x = %x\n", &pic->iivpr8, pic->iivpr8);
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#endif
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#if defined(CONFIG_PCI2) || defined(CONFIG_PCIE2)
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pic->iivpr9 = 0x810009; /* enable pcie2 interrupts */
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debug("iivpr9@%x = %x\n", &pic->iivpr9, pic->iivpr9);
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#endif
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pic->ctpr = 0; /* 40080 clear current task priority register */
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#endif
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return 0;
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}
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/*
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* timer_interrupt - gets called when the decrementer overflows,
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* with interrupts disabled.
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* Trivial implementation - no need to be really accurate.
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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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}
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/*
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* Install and free a interrupt handler. Not implemented yet.
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*/
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void 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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/*
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* irqinfo - print information about PCI devices,not implemented.
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*/
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int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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return 0;
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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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puts("external_interrupt (oops!)\n");
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}
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