arch/arm/mach-socfpga/socfpga.c

   1 /*
   2  *  Copyright (C) 2012 Altera Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 #include <linux/dw_apb_timer.h>
  18 #include <linux/of_irq.h>
  19 #include <linux/of_platform.h>
  20
  21 #include <asm/hardware/cache-l2x0.h>
  22 #include <asm/hardware/gic.h>
  23 #include <asm/mach/arch.h>
  24
  25 extern void socfpga_init_clocks(void);
  26
  27 const static struct of_device_id irq_match[] = {
  28         { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
  29         {}
  30 };
  31
  32 static void __init gic_init_irq(void)
  33 {
  34         of_irq_init(irq_match);
  35 }
  36
  37 static void socfpga_cyclone5_restart(char mode, const char *cmd)
  38 {
  39         /* TODO: */
  40 }
  41
  42 static void __init socfpga_cyclone5_init(void)
  43 {
  44         l2x0_of_init(0, ~0UL);
  45         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  46         socfpga_init_clocks();
  47 }
  48
  49 static const char *altera_dt_match[] = {
  50         "altr,socfpga",
  51         "altr,socfpga-cyclone5",
  52         NULL
  53 };
  54
  55 DT_MACHINE_START(SOCFPGA, "Altera SOCFPGA")
  56         .init_irq       = gic_init_irq,
  57         .handle_irq     = gic_handle_irq,
  58         .timer          = &dw_apb_timer,
  59         .init_machine   = socfpga_cyclone5_init,
  60         .restart        = socfpga_cyclone5_restart,
  61         .dt_compat      = altera_dt_match,
  62 MACHINE_END