2874c5fd28
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>
151 lines
3.1 KiB
C
151 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* arch/xtensa/platforms/xt2000/setup.c
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*
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* Platform specific functions for the XT2000 board.
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*
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* Authors: Chris Zankel <chris@zankel.net>
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* Joe Taylor <joe@tensilica.com>
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*
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* Copyright 2001 - 2004 Tensilica 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/kdev_t.h>
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#include <linux/types.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/stringify.h>
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#include <linux/platform_device.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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#include <asm/processor.h>
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#include <asm/platform.h>
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#include <asm/bootparam.h>
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#include <platform/hardware.h>
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#include <platform/serial.h>
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/* Assumes s points to an 8-chr string. No checking for NULL. */
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static void led_print (int f, char *s)
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{
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unsigned long* led_addr = (unsigned long*) (XT2000_LED_ADDR + 0xE0) + f;
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int i;
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for (i = f; i < 8; i++)
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if ((*led_addr++ = *s++) == 0)
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break;
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}
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void platform_halt(void)
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{
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led_print (0, " HALT ");
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local_irq_disable();
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while (1);
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}
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void platform_power_off(void)
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{
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led_print (0, "POWEROFF");
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local_irq_disable();
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while (1);
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}
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void platform_restart(void)
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{
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/* Flush and reset the mmu, simulate a processor reset, and
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* jump to the reset vector. */
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cpu_reset();
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/* control never gets here */
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}
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void __init platform_setup(char** cmdline)
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{
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led_print (0, "LINUX ");
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}
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/* early initialization */
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void __init platform_init(bp_tag_t *first)
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{
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}
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/* Heartbeat. Let the LED blink. */
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void platform_heartbeat(void)
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{
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static int i=0, t = 0;
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if (--t < 0)
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{
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t = 59;
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led_print(7, i ? ".": " ");
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i ^= 1;
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}
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}
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//#define RS_TABLE_SIZE 2
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#define _SERIAL_PORT(_base,_irq) \
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{ \
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.mapbase = (_base), \
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.membase = (void*)(_base), \
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.irq = (_irq), \
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.uartclk = DUART16552_XTAL_FREQ, \
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.iotype = UPIO_MEM, \
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.flags = UPF_BOOT_AUTOCONF, \
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.regshift = 2, \
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}
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static struct plat_serial8250_port xt2000_serial_data[] = {
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#if XCHAL_HAVE_BE
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_SERIAL_PORT(DUART16552_1_ADDR + 3, DUART16552_1_INTNUM),
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_SERIAL_PORT(DUART16552_2_ADDR + 3, DUART16552_2_INTNUM),
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#else
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_SERIAL_PORT(DUART16552_1_ADDR, DUART16552_1_INTNUM),
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_SERIAL_PORT(DUART16552_2_ADDR, DUART16552_2_INTNUM),
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#endif
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{ }
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};
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static struct platform_device xt2000_serial8250_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = xt2000_serial_data,
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},
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};
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static struct resource xt2000_sonic_res[] = {
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{
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.start = SONIC83934_ADDR,
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.end = SONIC83934_ADDR + 0xff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = SONIC83934_INTNUM,
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.end = SONIC83934_INTNUM,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device xt2000_sonic_device = {
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.name = "xtsonic",
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.num_resources = ARRAY_SIZE(xt2000_sonic_res),
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.resource = xt2000_sonic_res,
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};
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static int __init xt2000_setup_devinit(void)
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{
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platform_device_register(&xt2000_serial8250_device);
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platform_device_register(&xt2000_sonic_device);
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return 0;
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}
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device_initcall(xt2000_setup_devinit);
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