[linux-block.git] / arch / xtensa / platforms / xt2000 / setup.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * arch/xtensa/platforms/xt2000/setup.c
 *
 * Platform specific functions for the XT2000 board.
 *
 * Authors:	Chris Zankel <chris@zankel.net>
 *		Joe Taylor <joe@tensilica.com>
 *
 * Copyright 2001 - 2004 Tensilica Inc.
 */
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/reboot.h>
#include <linux/kdev_t.h>
#include <linux/types.h>
#include <linux/major.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/stringify.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>

#include <asm/processor.h>
#include <asm/platform.h>
#include <asm/bootparam.h>
#include <platform/hardware.h>
#include <platform/serial.h>

/* Assumes s points to an 8-chr string.  No checking for NULL. */

static void led_print (int f, char *s)
{
	unsigned long* led_addr = (unsigned long*) (XT2000_LED_ADDR + 0xE0) + f;
	int i;
	for (i = f; i < 8; i++)
		if ((*led_addr++ = *s++) == 0)
		    break;
}

void platform_halt(void)
{
	led_print (0, "  HALT  ");
	local_irq_disable();
	while (1);
}

void platform_power_off(void)
{
	led_print (0, "POWEROFF");
	local_irq_disable();
	while (1);
}

void platform_restart(void)
{
	/* Flush and reset the mmu, simulate a processor reset, and
	 * jump to the reset vector. */
	cpu_reset();
	/* control never gets here */
}

void __init platform_setup(char** cmdline)
{
	led_print (0, "LINUX   ");
}

/* early initialization */

void __init platform_init(bp_tag_t *first)
{
}

/* Heartbeat. Let the LED blink. */

void platform_heartbeat(void)
{
	static int i=0, t = 0;

	if (--t < 0)
	{
		t = 59;
		led_print(7, i ? ".": " ");
		i ^= 1;
	}
}

//#define RS_TABLE_SIZE 2

#define _SERIAL_PORT(_base,_irq)					\
{									\
	.mapbase	= (_base),					\
	.membase	= (void*)(_base),				\
	.irq		= (_irq),					\
	.uartclk	= DUART16552_XTAL_FREQ,				\
	.iotype		= UPIO_MEM,					\
	.flags		= UPF_BOOT_AUTOCONF,				\
	.regshift	= 2,						\
}

static struct plat_serial8250_port xt2000_serial_data[] = {
#if XCHAL_HAVE_BE
	_SERIAL_PORT(DUART16552_1_ADDR + 3, DUART16552_1_INTNUM),
	_SERIAL_PORT(DUART16552_2_ADDR + 3, DUART16552_2_INTNUM),
#else
	_SERIAL_PORT(DUART16552_1_ADDR, DUART16552_1_INTNUM),
	_SERIAL_PORT(DUART16552_2_ADDR, DUART16552_2_INTNUM),
#endif
	{ }
};

static struct platform_device xt2000_serial8250_device = {
	.name		= "serial8250",
	.id		= PLAT8250_DEV_PLATFORM,
	.dev		= {
	    .platform_data = xt2000_serial_data,
	},
};

static struct resource xt2000_sonic_res[] = {
	{
		.start = SONIC83934_ADDR,
		.end   = SONIC83934_ADDR + 0xff,
		.flags = IORESOURCE_MEM,
	},
	{
		.start = SONIC83934_INTNUM,
		.end = SONIC83934_INTNUM,
		.flags = IORESOURCE_IRQ,
	},
};

static struct platform_device xt2000_sonic_device = {
	.name		= "xtsonic",
	.num_resources	= ARRAY_SIZE(xt2000_sonic_res),
	.resource		= xt2000_sonic_res,
};

static int __init xt2000_setup_devinit(void)
{
	platform_device_register(&xt2000_serial8250_device);
	platform_device_register(&xt2000_sonic_device);

	return 0;
}

device_initcall(xt2000_setup_devinit);
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
8fa5723a CZ	2	/*
	3	* arch/xtensa/platforms/xt2000/setup.c
	4	*
	5	* Platform specific functions for the XT2000 board.
	6	*
	7	* Authors: Chris Zankel <chris@zankel.net>
	8	* Joe Taylor <joe@tensilica.com>
	9	*
	10	* Copyright 2001 - 2004 Tensilica Inc.
8fa5723a CZ	11	*/
	12	#include <linux/stddef.h>
	13	#include <linux/kernel.h>
	14	#include <linux/init.h>
	15	#include <linux/errno.h>
	16	#include <linux/reboot.h>
	17	#include <linux/kdev_t.h>
	18	#include <linux/types.h>
	19	#include <linux/major.h>
	20	#include <linux/console.h>
	21	#include <linux/delay.h>
	22	#include <linux/stringify.h>
	23	#include <linux/platform_device.h>
	24	#include <linux/serial.h>
	25	#include <linux/serial_8250.h>
	26
	27	#include <asm/processor.h>
	28	#include <asm/platform.h>
	29	#include <asm/bootparam.h>
	30	#include <platform/hardware.h>
	31	#include <platform/serial.h>
	32
	33	/* Assumes s points to an 8-chr string. No checking for NULL. */
	34
	35	static void led_print (int f, char *s)
	36	{
	37	unsigned long* led_addr = (unsigned long*) (XT2000_LED_ADDR + 0xE0) + f;
	38	int i;
	39	for (i = f; i < 8; i++)
	40	if ((led_addr++ = s++) == 0)
	41	break;
	42	}
	43
	44	void platform_halt(void)
	45	{
	46	led_print (0, " HALT ");
	47	local_irq_disable();
	48	while (1);
	49	}
	50
	51	void platform_power_off(void)
	52	{
	53	led_print (0, "POWEROFF");
	54	local_irq_disable();
	55	while (1);
	56	}
	57
	58	void platform_restart(void)
	59	{
	60	/* Flush and reset the mmu, simulate a processor reset, and
	61	* jump to the reset vector. */
4f205687	62	cpu_reset();
8fa5723a CZ	63	/* control never gets here */
	64	}
	65
	66	void __init platform_setup(char** cmdline)
	67	{
	68	led_print (0, "LINUX ");
	69	}
	70
	71	/* early initialization */
	72
cfe8255f	73	void __init platform_init(bp_tag_t *first)
8fa5723a	74	{
8fa5723a CZ	75	}
	76
	77	/* Heartbeat. Let the LED blink. */
	78
	79	void platform_heartbeat(void)
	80	{
	81	static int i=0, t = 0;
	82
	83	if (--t < 0)
	84	{
	85	t = 59;
	86	led_print(7, i ? ".": " ");
	87	i ^= 1;
	88	}
	89	}
	90
	91	//#define RS_TABLE_SIZE 2
8fa5723a CZ	92
	93	#define _SERIAL_PORT(_base,_irq) \
	94	{ \
	95	.mapbase = (_base), \
	96	.membase = (void*)(_base), \
	97	.irq = (_irq), \
	98	.uartclk = DUART16552_XTAL_FREQ, \
	99	.iotype = UPIO_MEM, \
	100	.flags = UPF_BOOT_AUTOCONF, \
	101	.regshift = 2, \
	102	}
	103
	104	static struct plat_serial8250_port xt2000_serial_data[] = {
	105	#if XCHAL_HAVE_BE
	106	_SERIAL_PORT(DUART16552_1_ADDR + 3, DUART16552_1_INTNUM),
	107	_SERIAL_PORT(DUART16552_2_ADDR + 3, DUART16552_2_INTNUM),
	108	#else
	109	_SERIAL_PORT(DUART16552_1_ADDR, DUART16552_1_INTNUM),
	110	_SERIAL_PORT(DUART16552_2_ADDR, DUART16552_2_INTNUM),
	111	#endif
	112	{ }
	113	};
	114
	115	static struct platform_device xt2000_serial8250_device = {
	116	.name = "serial8250",
	117	.id = PLAT8250_DEV_PLATFORM,
	118	.dev = {
	119	.platform_data = xt2000_serial_data,
	120	},
	121	};
	122
	123	static struct resource xt2000_sonic_res[] = {
	124	{
	125	.start = SONIC83934_ADDR,
	126	.end = SONIC83934_ADDR + 0xff,
	127	.flags = IORESOURCE_MEM,
	128	},
	129	{
	130	.start = SONIC83934_INTNUM,
	131	.end = SONIC83934_INTNUM,
	132	.flags = IORESOURCE_IRQ,
	133	},
	134	};
	135
	136	static struct platform_device xt2000_sonic_device = {
	137	.name = "xtsonic",
	138	.num_resources = ARRAY_SIZE(xt2000_sonic_res),
	139	.resource = xt2000_sonic_res,
	140	};
	141
	142	static int __init xt2000_setup_devinit(void)
	143	{
	144	platform_device_register(&xt2000_serial8250_device);
	145	platform_device_register(&xt2000_sonic_device);
	146
	147	return 0;
	148	}
	149
	150	device_initcall(xt2000_setup_devinit);