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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>
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* arch/powerpc/platforms/83xx/mpc837x_mds.c
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*
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* Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
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*
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* MPC837x MDS board specific routines
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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 <asm/time.h>
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#include <asm/ipic.h>
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#include <asm/udbg.h>
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#include <asm/prom.h>
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#include <sysdev/fsl_pci.h>
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#include "mpc83xx.h"
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#define BCSR12_USB_SER_MASK 0x8a
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#define BCSR12_USB_SER_PIN 0x80
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#define BCSR12_USB_SER_DEVICE 0x02
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static int mpc837xmds_usb_cfg(void)
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{
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struct device_node *np;
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const void *phy_type, *mode;
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void __iomem *bcsr_regs = NULL;
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u8 bcsr12;
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int ret;
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ret = mpc837x_usb_cfg();
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if (ret)
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return ret;
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/* Map BCSR area */
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np = of_find_compatible_node(NULL, NULL, "fsl,mpc837xmds-bcsr");
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if (np) {
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bcsr_regs = of_iomap(np, 0);
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of_node_put(np);
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}
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if (!bcsr_regs)
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return -1;
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np = of_find_node_by_name(NULL, "usb");
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if (!np) {
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ret = -ENODEV;
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goto out;
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}
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phy_type = of_get_property(np, "phy_type", NULL);
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if (phy_type && !strcmp(phy_type, "ulpi")) {
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clrbits8(bcsr_regs + 12, BCSR12_USB_SER_PIN);
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} else if (phy_type && !strcmp(phy_type, "serial")) {
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mode = of_get_property(np, "dr_mode", NULL);
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bcsr12 = in_8(bcsr_regs + 12) & ~BCSR12_USB_SER_MASK;
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bcsr12 |= BCSR12_USB_SER_PIN;
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if (mode && !strcmp(mode, "peripheral"))
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bcsr12 |= BCSR12_USB_SER_DEVICE;
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out_8(bcsr_regs + 12, bcsr12);
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} else {
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printk(KERN_ERR "USB DR: unsupported PHY\n");
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}
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of_node_put(np);
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out:
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iounmap(bcsr_regs);
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return ret;
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}
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/* ************************************************************************
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*
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* Setup the architecture
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*
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*/
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static void __init mpc837x_mds_setup_arch(void)
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{
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mpc83xx_setup_arch();
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mpc837xmds_usb_cfg();
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}
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machine_device_initcall(mpc837x_mds, mpc83xx_declare_of_platform_devices);
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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static int __init mpc837x_mds_probe(void)
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{
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return of_machine_is_compatible("fsl,mpc837xmds");
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}
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define_machine(mpc837x_mds) {
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.name = "MPC837x MDS",
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.probe = mpc837x_mds_probe,
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.setup_arch = mpc837x_mds_setup_arch,
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.init_IRQ = mpc83xx_ipic_init_IRQ,
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.get_irq = ipic_get_irq,
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.restart = mpc83xx_restart,
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.time_init = mpc83xx_time_init,
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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};
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