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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Wind River SBC8548 setup and early boot code.
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*
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* Copyright 2007 Wind River Systems Inc.
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*
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* By Paul Gortmaker (see MAINTAINERS for contact information)
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*
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* Based largely on the MPC8548CDS support - Copyright 2005 Freescale Inc.
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*/
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/reboot.h>
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#include <linux/pci.h>
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#include <linux/kdev_t.h>
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#include <linux/major.h>
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#include <linux/console.h>
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#include <linux/delay.h>
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#include <linux/seq_file.h>
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#include <linux/initrd.h>
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#include <linux/interrupt.h>
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#include <linux/fsl_devices.h>
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#include <linux/of_platform.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <linux/atomic.h>
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#include <asm/time.h>
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#include <asm/io.h>
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#include <asm/machdep.h>
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#include <asm/ipic.h>
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#include <asm/pci-bridge.h>
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#include <asm/irq.h>
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#include <mm/mmu_decl.h>
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#include <asm/prom.h>
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#include <asm/udbg.h>
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#include <asm/mpic.h>
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#include <sysdev/fsl_soc.h>
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#include <sysdev/fsl_pci.h>
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#include "mpc85xx.h"
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static int sbc_rev;
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static void __init sbc8548_pic_init(void)
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{
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struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
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0, 256, " OpenPIC ");
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BUG_ON(mpic == NULL);
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mpic_init(mpic);
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}
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/* Extract the HW Rev from the EPLD on the board */
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static int __init sbc8548_hw_rev(void)
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{
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struct device_node *np;
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struct resource res;
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unsigned int *rev;
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int board_rev = 0;
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np = of_find_compatible_node(NULL, NULL, "hw-rev");
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if (np == NULL) {
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printk("No HW-REV found in DTB.\n");
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return -ENODEV;
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}
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of_address_to_resource(np, 0, &res);
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of_node_put(np);
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rev = ioremap(res.start,sizeof(unsigned int));
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board_rev = (*rev) >> 28;
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iounmap(rev);
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return board_rev;
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}
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/*
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* Setup the architecture
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*/
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static void __init sbc8548_setup_arch(void)
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{
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if (ppc_md.progress)
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ppc_md.progress("sbc8548_setup_arch()", 0);
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fsl_pci_assign_primary();
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sbc_rev = sbc8548_hw_rev();
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}
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static void sbc8548_show_cpuinfo(struct seq_file *m)
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{
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uint pvid, svid, phid1;
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pvid = mfspr(SPRN_PVR);
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svid = mfspr(SPRN_SVR);
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seq_printf(m, "Vendor\t\t: Wind River\n");
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seq_printf(m, "Machine\t\t: SBC8548 v%d\n", sbc_rev);
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seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
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seq_printf(m, "SVR\t\t: 0x%x\n", svid);
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/* Display cpu Pll setting */
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phid1 = mfspr(SPRN_HID1);
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seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
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}
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machine_arch_initcall(sbc8548, mpc85xx_common_publish_devices);
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/*
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* Called very early, device-tree isn't unflattened
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*/
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static int __init sbc8548_probe(void)
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{
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return of_machine_is_compatible("SBC8548");
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}
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define_machine(sbc8548) {
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.name = "SBC8548",
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.probe = sbc8548_probe,
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.setup_arch = sbc8548_setup_arch,
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.init_IRQ = sbc8548_pic_init,
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.show_cpuinfo = sbc8548_show_cpuinfo,
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.get_irq = mpic_get_irq,
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#ifdef CONFIG_PCI
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.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
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.pcibios_fixup_phb = fsl_pcibios_fixup_phb,
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#endif
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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};
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