1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Carsten Langgaard, carstenl@mips.com
 4 * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
 5 */
 6#include <linux/init.h>
 7#include <linux/ioport.h>
 8#include <linux/pm.h>
 9#include <linux/time.h>
10
11#include <asm/reboot.h>
12#include <asm/mach-ar7/ar7.h>
13#include <asm/mach-ar7/prom.h>
14
15static void ar7_machine_restart(char *command)
16{
17	u32 *softres_reg = ioremap(AR7_REGS_RESET + AR7_RESET_SOFTWARE, 1);
18
19	writel(1, softres_reg);
20}
21
22static void ar7_machine_halt(void)
23{
24	while (1)
25		;
26}
27
28static void ar7_machine_power_off(void)
29{
30	u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
31	u32 power_state = readl(power_reg) | (3 << 30);
32
33	writel(power_state, power_reg);
34	ar7_machine_halt();
35}
36
37const char *get_system_type(void)
38{
39	u16 chip_id = ar7_chip_id();
40	u16 titan_variant_id = titan_chip_id();
41
42	switch (chip_id) {
43	case AR7_CHIP_7100:
44		return "TI AR7 (TNETD7100)";
45	case AR7_CHIP_7200:
46		return "TI AR7 (TNETD7200)";
47	case AR7_CHIP_7300:
48		return "TI AR7 (TNETD7300)";
49	case AR7_CHIP_TITAN:
50		switch (titan_variant_id) {
51		case TITAN_CHIP_1050:
52			return "TI AR7 (TNETV1050)";
53		case TITAN_CHIP_1055:
54			return "TI AR7 (TNETV1055)";
55		case TITAN_CHIP_1056:
56			return "TI AR7 (TNETV1056)";
57		case TITAN_CHIP_1060:
58			return "TI AR7 (TNETV1060)";
59		}
60		fallthrough;
61	default:
62		return "TI AR7 (unknown)";
63	}
64}
65
66static int __init ar7_init_console(void)
67{
68	return 0;
69}
70console_initcall(ar7_init_console);
71
72/*
73 * Initializes basic routines and structures pointers, memory size (as
74 * given by the bios and saves the command line.
75 */
76void __init plat_mem_setup(void)
77{
78	unsigned long io_base;
79
80	_machine_restart = ar7_machine_restart;
81	_machine_halt = ar7_machine_halt;
82	pm_power_off = ar7_machine_power_off;
83
84	io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
85	if (!io_base)
86		panic("Can't remap IO base!");
87	set_io_port_base(io_base);
88
89	prom_meminit();
90
91	printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
92			get_system_type(), ar7_chip_id(), ar7_chip_rev());
93}

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Carsten Langgaard, carstenl@mips.com
 4 * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
 5 */
 6#include <linux/init.h>
 7#include <linux/ioport.h>
 8#include <linux/pm.h>
 9#include <linux/time.h>
10
11#include <asm/reboot.h>
12#include <asm/mach-ar7/ar7.h>
13#include <asm/mach-ar7/prom.h>
14
15static void ar7_machine_restart(char *command)
16{
17	u32 *softres_reg = ioremap(AR7_REGS_RESET + AR7_RESET_SOFTWARE, 1);
18
19	writel(1, softres_reg);
20}
21
22static void ar7_machine_halt(void)
23{
24	while (1)
25		;
26}
27
28static void ar7_machine_power_off(void)
29{
30	u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
31	u32 power_state = readl(power_reg) | (3 << 30);
32
33	writel(power_state, power_reg);
34	ar7_machine_halt();
35}
36
37const char *get_system_type(void)
38{
39	u16 chip_id = ar7_chip_id();
40	u16 titan_variant_id = titan_chip_id();
41
42	switch (chip_id) {
43	case AR7_CHIP_7100:
44		return "TI AR7 (TNETD7100)";
45	case AR7_CHIP_7200:
46		return "TI AR7 (TNETD7200)";
47	case AR7_CHIP_7300:
48		return "TI AR7 (TNETD7300)";
49	case AR7_CHIP_TITAN:
50		switch (titan_variant_id) {
51		case TITAN_CHIP_1050:
52			return "TI AR7 (TNETV1050)";
53		case TITAN_CHIP_1055:
54			return "TI AR7 (TNETV1055)";
55		case TITAN_CHIP_1056:
56			return "TI AR7 (TNETV1056)";
57		case TITAN_CHIP_1060:
58			return "TI AR7 (TNETV1060)";
59		}
60		/* fall through */
61	default:
62		return "TI AR7 (unknown)";
63	}
64}
65
66static int __init ar7_init_console(void)
67{
68	return 0;
69}
70console_initcall(ar7_init_console);
71
72/*
73 * Initializes basic routines and structures pointers, memory size (as
74 * given by the bios and saves the command line.
75 */
76void __init plat_mem_setup(void)
77{
78	unsigned long io_base;
79
80	_machine_restart = ar7_machine_restart;
81	_machine_halt = ar7_machine_halt;
82	pm_power_off = ar7_machine_power_off;
83
84	io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
85	if (!io_base)
86		panic("Can't remap IO base!");
87	set_io_port_base(io_base);
88
89	prom_meminit();
90
91	printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
92			get_system_type(), ar7_chip_id(), ar7_chip_rev());
93}