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// SPDX-License-Identifier: GPL-2.0-only
/*
* Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*/
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/pm.h>
#include <linux/time.h>
#include <asm/reboot.h>
#include <asm/mach-ar7/ar7.h>
#include <asm/mach-ar7/prom.h>
static void ar7_machine_restart(char *command)
{
u32 *softres_reg = ioremap(AR7_REGS_RESET + AR7_RESET_SOFTWARE, 1);
writel(1, softres_reg);
}
static void ar7_machine_halt(void)
{
while (1)
;
}
static void ar7_machine_power_off(void)
{
u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
u32 power_state = readl(power_reg) | (3 << 30);
writel(power_state, power_reg);
ar7_machine_halt();
}
const char *get_system_type(void)
{
u16 chip_id = ar7_chip_id();
u16 titan_variant_id = titan_chip_id();
switch (chip_id) {
case AR7_CHIP_7100:
return "TI AR7 (TNETD7100)";
case AR7_CHIP_7200:
return "TI AR7 (TNETD7200)";
case AR7_CHIP_7300:
return "TI AR7 (TNETD7300)";
case AR7_CHIP_TITAN:
switch (titan_variant_id) {
case TITAN_CHIP_1050:
return "TI AR7 (TNETV1050)";
case TITAN_CHIP_1055:
return "TI AR7 (TNETV1055)";
case TITAN_CHIP_1056:
return "TI AR7 (TNETV1056)";
case TITAN_CHIP_1060:
return "TI AR7 (TNETV1060)";
}
fallthrough;
default:
return "TI AR7 (unknown)";
}
}
static int __init ar7_init_console(void)
{
return 0;
}
console_initcall(ar7_init_console);
/*
* Initializes basic routines and structures pointers, memory size (as
* given by the bios and saves the command line.
*/
void __init plat_mem_setup(void)
{
unsigned long io_base;
_machine_restart = ar7_machine_restart;
_machine_halt = ar7_machine_halt;
pm_power_off = ar7_machine_power_off;
io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
if (!io_base)
panic("Can't remap IO base!");
set_io_port_base(io_base);
prom_meminit();
printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
get_system_type(), ar7_chip_id(), ar7_chip_rev());
}
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