cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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setup.c (1534B)

      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
     17struct pci_reg __iomem *pci_reg;
     18EXPORT_SYMBOL(pci_reg);
     19
     20static 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
     29static 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
     36static void rb_machine_halt(void)
     37{
     38	for (;;)
     39		continue;
     40}
     41
     42void __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(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
     71const 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}