arch/mips/rb532/setup.c

   1 /*
   2  * setup.c - boot time setup code
   3  */
   4
   5 #include <linux/init.h>
   6 #include <linux/export.h>
   7
   8 #include <asm/bootinfo.h>
   9 #include <asm/reboot.h>
  10 #include <asm/time.h>
  11 #include <linux/ioport.h>
  12
  13 #include <asm/mach-rc32434/rb.h>
  14 #include <asm/mach-rc32434/pci.h>
  15
  16 struct pci_reg __iomem *pci_reg;
  17 EXPORT_SYMBOL(pci_reg);
  18
  19 static struct resource pci0_res[] = {
  20         {
  21                 .name = "pci_reg0",
  22                 .start = PCI0_BASE_ADDR,
  23                 .end = PCI0_BASE_ADDR + sizeof(struct pci_reg),
  24                 .flags = IORESOURCE_MEM,
  25         }
  26 };
  27
  28 static void rb_machine_restart(char *command)
  29 {
  30         /* just jump to the reset vector */
  31         writel(0x80000001, IDT434_REG_BASE + RST);
  32         ((void (*)(void)) KSEG1ADDR(0x1FC00000u))();
  33 }
  34
  35 static void rb_machine_halt(void)
  36 {
  37         for (;;)
  38                 continue;
  39 }
  40
  41 void __init plat_mem_setup(void)
  42 {
  43         u32 val;
  44
  45         _machine_restart = rb_machine_restart;
  46         _machine_halt = rb_machine_halt;
  47         pm_power_off = rb_machine_halt;
  48
  49         set_io_port_base(KSEG1);
  50
  51         pci_reg = ioremap_nocache(pci0_res[0].start,
  52                                 pci0_res[0].end - pci0_res[0].start);
  53         if (!pci_reg) {
  54                 printk(KERN_ERR "Could not remap PCI registers\n");
  55                 return;
  56         }
  57
  58         val = __raw_readl(&pci_reg->pcic);
  59         val &= 0xFFFFFF7;
  60         __raw_writel(val, (void *)&pci_reg->pcic);
  61
  62 #ifdef CONFIG_PCI
  63         /* Enable PCI interrupts in EPLD Mask register */
  64         *epld_mask = 0x0;
  65         *(epld_mask + 1) = 0x0;
  66 #endif
  67         write_c0_wired(0);
  68 }
  69
  70 const char *get_system_type(void)
  71 {
  72         switch (mips_machtype) {
  73         case MACH_MIKROTIK_RB532A:
  74                 return "Mikrotik RB532A";
  75                 break;
  76         default:
  77                 return "Mikrotik RB532";
  78                 break;
  79         }
  80 }