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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>
115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Board setup routines for the Emerson/Artesyn MVME7100
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*
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* Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
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*
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* Author: Alessio Igor Bogani <alessio.bogani@elettra.eu>
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*
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* Based on earlier code by:
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*
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* Ajit Prem <ajit.prem@emerson.com>
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* Copyright 2008 Emerson
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*
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* USB host fixup is borrowed by:
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*
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* Martyn Welch <martyn.welch@ge.com>
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* Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
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*/
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#include <linux/pci.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/of_address.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 "mpc86xx.h"
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#define MVME7100_INTERRUPT_REG_2_OFFSET 0x05
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#define MVME7100_DS1375_MASK 0x40
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#define MVME7100_MAX6649_MASK 0x20
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#define MVME7100_ABORT_MASK 0x10
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/*
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* Setup the architecture
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*/
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static void __init mvme7100_setup_arch(void)
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{
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struct device_node *bcsr_node;
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void __iomem *mvme7100_regs = NULL;
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u8 reg;
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if (ppc_md.progress)
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ppc_md.progress("mvme7100_setup_arch()", 0);
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#ifdef CONFIG_SMP
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mpc86xx_smp_init();
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#endif
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fsl_pci_assign_primary();
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/* Remap BCSR registers */
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bcsr_node = of_find_compatible_node(NULL, NULL,
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"artesyn,mvme7100-bcsr");
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if (bcsr_node) {
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mvme7100_regs = of_iomap(bcsr_node, 0);
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of_node_put(bcsr_node);
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}
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if (mvme7100_regs) {
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/* Disable ds1375, max6649, and abort interrupts */
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reg = readb(mvme7100_regs + MVME7100_INTERRUPT_REG_2_OFFSET);
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reg |= MVME7100_DS1375_MASK | MVME7100_MAX6649_MASK
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| MVME7100_ABORT_MASK;
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writeb(reg, mvme7100_regs + MVME7100_INTERRUPT_REG_2_OFFSET);
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} else
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pr_warn("Unable to map board registers\n");
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pr_info("MVME7100 board from Artesyn\n");
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}
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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 mvme7100_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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return of_flat_dt_is_compatible(root, "artesyn,MVME7100");
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}
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static void mvme7100_usb_host_fixup(struct pci_dev *pdev)
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{
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unsigned int val;
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if (!machine_is(mvme7100))
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return;
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/* Ensure only ports 1 & 2 are enabled */
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pci_read_config_dword(pdev, 0xe0, &val);
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pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x2);
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/* System clock is 48-MHz Oscillator and EHCI Enabled. */
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pci_write_config_dword(pdev, 0xe4, 1 << 5);
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
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mvme7100_usb_host_fixup);
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machine_arch_initcall(mvme7100, mpc86xx_common_publish_devices);
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define_machine(mvme7100) {
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.name = "MVME7100",
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.probe = mvme7100_probe,
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.setup_arch = mvme7100_setup_arch,
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.init_IRQ = mpc86xx_init_irq,
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.get_irq = mpic_get_irq,
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.time_init = mpc86xx_time_init,
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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#ifdef CONFIG_PCI
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.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
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#endif
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};
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