setup.c

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/*
 * setup.c - boot time setup code
 */

#include <linux/init.h>
#include <linux/export.h>

#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <linux/ioport.h>

#include <asm/mach-rc32434/rb.h>
#include <asm/mach-rc32434/pci.h>

struct pci_reg __iomem *pci_reg;
EXPORT_SYMBOL(pci_reg);

static struct resource pci0_res[] = {
    {
        .name = "pci_reg0",
        .start = PCI0_BASE_ADDR,
        .end = PCI0_BASE_ADDR + sizeof(struct pci_reg),
        .flags = IORESOURCE_MEM,
    }
};

static void rb_machine_restart(char *command)
{
    /* just jump to the reset vector */
    writel(0x80000001, IDT434_REG_BASE + RST);
    ((void (*)(void)) KSEG1ADDR(0x1FC00000u))();
}

static void rb_machine_halt(void)
{
    for (;;)
        continue;
}

void __init plat_mem_setup(void)
{
    u32 val;

    _machine_restart = rb_machine_restart;
    _machine_halt = rb_machine_halt;
    pm_power_off = rb_machine_halt;

    set_io_port_base(KSEG1);

    pci_reg = ioremap_nocache(pci0_res[0].start,
                pci0_res[0].end - pci0_res[0].start);
    if (!pci_reg) {
        printk(KERN_ERR "Could not remap PCI registers\n");
        return;
    }

    val = __raw_readl(&pci_reg->pcic);
    val &= 0xFFFFFF7;
    __raw_writel(val, (void *)&pci_reg->pcic);

#ifdef CONFIG_PCI
    /* Enable PCI interrupts in EPLD Mask register */
    *epld_mask = 0x0;
    *(epld_mask + 1) = 0x0;
#endif
    write_c0_wired(0);
}

const char *get_system_type(void)
{
    switch (mips_machtype) {
    case MACH_MIKROTIK_RB532A:
        return "Mikrotik RB532A";
        break;
    default:
        return "Mikrotik RB532";
        break;
    }
}