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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mpc837x_rdb.c (1887B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * arch/powerpc/platforms/83xx/mpc837x_rdb.c
      4 *
      5 * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
      6 *
      7 * MPC837x RDB board specific routines
      8 */
      9
     10#include <linux/pci.h>
     11#include <linux/of_platform.h>
     12
     13#include <asm/time.h>
     14#include <asm/ipic.h>
     15#include <asm/udbg.h>
     16#include <sysdev/fsl_soc.h>
     17#include <sysdev/fsl_pci.h>
     18
     19#include "mpc83xx.h"
     20
     21static void __init mpc837x_rdb_sd_cfg(void)
     22{
     23	void __iomem *im;
     24
     25	im = ioremap(get_immrbase(), 0x1000);
     26	if (!im) {
     27		WARN_ON(1);
     28		return;
     29	}
     30
     31	/*
     32	 * On RDB boards (in contrast to MDS) USBB pins are used for SD only,
     33	 * so we can safely mux them away from the USB block.
     34	 */
     35	clrsetbits_be32(im + MPC83XX_SICRL_OFFS, MPC837X_SICRL_USBB_MASK,
     36						 MPC837X_SICRL_SD);
     37	clrsetbits_be32(im + MPC83XX_SICRH_OFFS, MPC837X_SICRH_SPI_MASK,
     38						 MPC837X_SICRH_SD);
     39	iounmap(im);
     40}
     41
     42/* ************************************************************************
     43 *
     44 * Setup the architecture
     45 *
     46 */
     47static void __init mpc837x_rdb_setup_arch(void)
     48{
     49	mpc83xx_setup_arch();
     50	mpc837x_usb_cfg();
     51	mpc837x_rdb_sd_cfg();
     52}
     53
     54machine_device_initcall(mpc837x_rdb, mpc83xx_declare_of_platform_devices);
     55
     56static const char * const board[] __initconst = {
     57	"fsl,mpc8377rdb",
     58	"fsl,mpc8378rdb",
     59	"fsl,mpc8379rdb",
     60	"fsl,mpc8377wlan",
     61	NULL
     62};
     63
     64/*
     65 * Called very early, MMU is off, device-tree isn't unflattened
     66 */
     67static int __init mpc837x_rdb_probe(void)
     68{
     69	return of_device_compatible_match(of_root, board);
     70}
     71
     72define_machine(mpc837x_rdb) {
     73	.name			= "MPC837x RDB/WLAN",
     74	.probe			= mpc837x_rdb_probe,
     75	.setup_arch		= mpc837x_rdb_setup_arch,
     76	.discover_phbs  	= mpc83xx_setup_pci,
     77	.init_IRQ		= mpc83xx_ipic_init_IRQ,
     78	.get_irq		= ipic_get_irq,
     79	.restart		= mpc83xx_restart,
     80	.time_init		= mpc83xx_time_init,
     81	.calibrate_decr		= generic_calibrate_decr,
     82	.progress		= udbg_progress,
     83};