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