arch/arm/mach-ux500/cpu.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
   5  * License terms: GNU General Public License (GPL) version 2
   6  */
   7
   8 #include <linux/platform_device.h>
   9 #include <linux/io.h>
  10 #include <linux/clk.h>
  11 #include <linux/mfd/db8500-prcmu.h>
  12 #include <linux/mfd/db5500-prcmu.h>
  13 #include <linux/clksrc-dbx500-prcmu.h>
  14
  15 #include <asm/hardware/gic.h>
  16 #include <asm/mach/map.h>
  17 #include <asm/localtimer.h>
  18
  19 #include <mach/hardware.h>
  20 #include <mach/setup.h>
  21 #include <mach/devices.h>
  22
  23 #include "clock.h"
  24
  25 void __iomem *_PRCMU_BASE;
  26
  27 void __init ux500_init_irq(void)
  28 {
  29         void __iomem *dist_base;
  30         void __iomem *cpu_base;
  31
  32         if (cpu_is_u5500()) {
  33                 dist_base = __io_address(U5500_GIC_DIST_BASE);
  34                 cpu_base = __io_address(U5500_GIC_CPU_BASE);
  35         } else if (cpu_is_u8500()) {
  36                 dist_base = __io_address(U8500_GIC_DIST_BASE);
  37                 cpu_base = __io_address(U8500_GIC_CPU_BASE);
  38         } else
  39                 ux500_unknown_soc();
  40
  41         gic_init(0, 29, dist_base, cpu_base);
  42
  43         /*
  44          * Init clocks here so that they are available for system timer
  45          * initialization.
  46          */
  47         if (cpu_is_u5500())
  48                 db5500_prcmu_early_init();
  49         if (cpu_is_u8500())
  50                 db8500_prcmu_early_init();
  51         clk_init();
  52 }