LXR linux/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/rb.h>
  13#include <asm/mach-rc32434/pci.h>
  14
  15struct pci_reg __iomem *pci_reg;
  16EXPORT_SYMBOL(pci_reg);
  17
  18static 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
  27static void rb_machine_restart(char *command)
  28{
  29        /* just jump to the reset vector */
  30        writel(0x80000001, IDT434_REG_BASE + RST);
  31        ((void (*)(void)) KSEG1ADDR(0x1FC00000u))();
  32}
  33
  34static void rb_machine_halt(void)
  35{
  36        for (;;)
  37                continue;
  38}
  39
  40void __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
  69const 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}
  80