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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common.c (781B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Routines common to most mpc86xx-based boards.
      4 */
      5
      6#include <linux/of_platform.h>
      7#include <asm/synch.h>
      8
      9#include "mpc86xx.h"
     10
     11static const struct of_device_id mpc86xx_common_ids[] __initconst = {
     12	{ .type = "soc", },
     13	{ .compatible = "soc", },
     14	{ .compatible = "simple-bus", },
     15	{ .name = "localbus", },
     16	{ .compatible = "gianfar", },
     17	{ .compatible = "fsl,mpc8641-pcie", },
     18	{},
     19};
     20
     21int __init mpc86xx_common_publish_devices(void)
     22{
     23	return of_platform_bus_probe(NULL, mpc86xx_common_ids, NULL);
     24}
     25
     26long __init mpc86xx_time_init(void)
     27{
     28	unsigned int temp;
     29
     30	/* Set the time base to zero */
     31	mtspr(SPRN_TBWL, 0);
     32	mtspr(SPRN_TBWU, 0);
     33
     34	temp = mfspr(SPRN_HID0);
     35	temp |= HID0_TBEN;
     36	mtspr(SPRN_HID0, temp);
     37	isync();
     38
     39	return 0;
     40}