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author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:09 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:16 +0200 |
commit | 8d1f268204b07e172f3cb5cee0a3974d605b0b98 (patch) | |
tree | c3359e920cc886e7060fb099bf933496aca37153 /arch/ppc/cpu/mpc86xx/interrupts.c | |
parent | 819833af39a91fa1c1e8252862bbda6f5a602f7b (diff) | |
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ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/ppc/cpu/mpc86xx/interrupts.c')
-rw-r--r-- | arch/ppc/cpu/mpc86xx/interrupts.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/ppc/cpu/mpc86xx/interrupts.c b/arch/ppc/cpu/mpc86xx/interrupts.c new file mode 100644 index 0000000..c78fc72 --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/interrupts.c @@ -0,0 +1,115 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 (440 port) + * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com + * + * (C) Copyright 2003 Motorola Inc. (MPC85xx port) + * Xianghua Xiao (X.Xiao@motorola.com) + * + * (C) Copyright 2004, 2007 Freescale Semiconductor. (MPC86xx Port) + * Jeff Brown + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc86xx.h> +#include <command.h> +#include <asm/processor.h> + +int interrupt_init_cpu(unsigned long *decrementer_count) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile ccsr_pic_t *pic = &immr->im_pic; + + pic->gcr = MPC86xx_PICGCR_RST; + while (pic->gcr & MPC86xx_PICGCR_RST) + ; + pic->gcr = MPC86xx_PICGCR_MODE; + + *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; + debug("interrupt init: tbclk() = %d MHz, decrementer_count = %ld\n", + (get_tbclk() / 1000000), + *decrementer_count); + +#ifdef CONFIG_INTERRUPTS + + pic->iivpr1 = 0x810001; /* 50220 enable mcm interrupts */ + debug("iivpr1@%x = %x\n", &pic->iivpr1, pic->iivpr1); + + pic->iivpr2 = 0x810002; /* 50240 enable ddr interrupts */ + debug("iivpr2@%x = %x\n", &pic->iivpr2, pic->iivpr2); + + pic->iivpr3 = 0x810003; /* 50260 enable lbc interrupts */ + debug("iivpr3@%x = %x\n", &pic->iivpr3, pic->iivpr3); + +#if defined(CONFIG_PCI1) || defined(CONFIG_PCIE1) + pic->iivpr8 = 0x810008; /* enable pcie1 interrupts */ + debug("iivpr8@%x = %x\n", &pic->iivpr8, pic->iivpr8); +#endif +#if defined(CONFIG_PCI2) || defined(CONFIG_PCIE2) + pic->iivpr9 = 0x810009; /* enable pcie2 interrupts */ + debug("iivpr9@%x = %x\n", &pic->iivpr9, pic->iivpr9); +#endif + + pic->ctpr = 0; /* 40080 clear current task priority register */ +#endif + + return 0; +} + +/* + * timer_interrupt - gets called when the decrementer overflows, + * with interrupts disabled. + * Trivial implementation - no need to be really accurate. + */ +void timer_interrupt_cpu(struct pt_regs *regs) +{ + /* nothing to do here */ +} + +/* + * Install and free a interrupt handler. Not implemented yet. + */ +void irq_install_handler(int vec, interrupt_handler_t *handler, void *arg) +{ +} + +void irq_free_handler(int vec) +{ +} + +/* + * irqinfo - print information about PCI devices,not implemented. + */ +int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + return 0; +} + +/* + * Handle external interrupts + */ +void external_interrupt(struct pt_regs *regs) +{ + puts("external_interrupt (oops!)\n"); +} |