License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[linux-block.git] / arch / mips / rb532 / setup.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * setup.c - boot time setup code
4  */
5
6 #include <linux/init.h>
7 #include <linux/export.h>
8
9 #include <asm/bootinfo.h>
10 #include <asm/reboot.h>
11 #include <asm/time.h>
12 #include <linux/ioport.h>
13
14 #include <asm/mach-rc32434/rb.h>
15 #include <asm/mach-rc32434/pci.h>
16
17 struct pci_reg __iomem *pci_reg;
18 EXPORT_SYMBOL(pci_reg);
19
20 static struct resource pci0_res[] = {
21         {
22                 .name = "pci_reg0",
23                 .start = PCI0_BASE_ADDR,
24                 .end = PCI0_BASE_ADDR + sizeof(struct pci_reg),
25                 .flags = IORESOURCE_MEM,
26         }
27 };
28
29 static void rb_machine_restart(char *command)
30 {
31         /* just jump to the reset vector */
32         writel(0x80000001, IDT434_REG_BASE + RST);
33         ((void (*)(void)) KSEG1ADDR(0x1FC00000u))();
34 }
35
36 static void rb_machine_halt(void)
37 {
38         for (;;)
39                 continue;
40 }
41
42 void __init plat_mem_setup(void)
43 {
44         u32 val;
45
46         _machine_restart = rb_machine_restart;
47         _machine_halt = rb_machine_halt;
48         pm_power_off = rb_machine_halt;
49
50         set_io_port_base(KSEG1);
51
52         pci_reg = ioremap_nocache(pci0_res[0].start,
53                                 pci0_res[0].end - pci0_res[0].start);
54         if (!pci_reg) {
55                 printk(KERN_ERR "Could not remap PCI registers\n");
56                 return;
57         }
58
59         val = __raw_readl(&pci_reg->pcic);
60         val &= 0xFFFFFF7;
61         __raw_writel(val, (void *)&pci_reg->pcic);
62
63 #ifdef CONFIG_PCI
64         /* Enable PCI interrupts in EPLD Mask register */
65         *epld_mask = 0x0;
66         *(epld_mask + 1) = 0x0;
67 #endif
68         write_c0_wired(0);
69 }
70
71 const char *get_system_type(void)
72 {
73         switch (mips_machtype) {
74         case MACH_MIKROTIK_RB532A:
75                 return "Mikrotik RB532A";
76                 break;
77         default:
78                 return "Mikrotik RB532";
79                 break;
80         }
81 }