arch/mips/rb532/setup.c

   1 /*
   2  * setup.c - boot time setup code
   3  */
   4
   5 #include <linux/init.h>
   6
   7 #include <asm/bootinfo.h>
   8 #include <asm/reboot.h>
   9 #include <asm/time.h>
  10 #include <linux/ioport.h>
  11
  12 #include <asm/mach-rc32434/rc32434.h>
  13 #include <asm/mach-rc32434/pci.h>
  14
  15 struct pci_reg __iomem *pci_reg;
  16 EXPORT_SYMBOL(pci_reg);
  17
  18 static struct resource pci0_res[] = {
  19         {
  20                 .name = "pci_reg0",
  21                 .start = PCI0_BASE_ADDR,
  22                 .end = PCI0_BASE_ADDR + sizeof(struct pci_reg),
  23                 .flags = IORESOURCE_MEM,
  24         }
  25 };
  26
  27 static void rb_machine_restart(char *command)
  28 {
  29         /* just jump to the reset vector */
  30         writel(0x80000001, (void *)KSEG1ADDR(RC32434_REG_BASE + RC32434_RST));
  31         ((void (*)(void)) KSEG1ADDR(0x1FC00000u))();
  32 }
  33
  34 static void rb_machine_halt(void)
  35 {
  36         for (;;)
  37                 continue;
  38 }
  39
  40 void __init plat_mem_setup(void)
  41 {
  42         u32 val;
  43
  44         _machine_restart = rb_machine_restart;
  45         _machine_halt = rb_machine_halt;
  46         pm_power_off = rb_machine_halt;
  47
  48         set_io_port_base(KSEG1);
  49
  50         pci_reg = ioremap_nocache(pci0_res[0].start,
  51                                 pci0_res[0].end - pci0_res[0].start);
  52         if (!pci_reg) {
  53                 printk(KERN_ERR "Could not remap PCI registers\n");
  54                 return;
  55         }
  56
  57         val = __raw_readl(&pci_reg->pcic);
  58         val &= 0xFFFFFF7;
  59         __raw_writel(val, (void *)&pci_reg->pcic);
  60
  61 #ifdef CONFIG_PCI
  62         /* Enable PCI interrupts in EPLD Mask register */
  63         *epld_mask = 0x0;
  64         *(epld_mask + 1) = 0x0;
  65 #endif
  66         write_c0_wired(0);
  67 }
  68
  69 const char *get_system_type(void)
  70 {
  71         switch (mips_machtype) {
  72         case MACH_MIKROTIK_RB532A:
  73                 return "Mikrotik RB532A";
  74                 break;
  75         default:
  76                 return "Mikrotik RB532";
  77                 break;
  78         }
  79 }