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9a53a8d73c
The config for MIPS R4000-series processors is named CPU_R4X00 with upper-case X, not CPU_R4x00 as the error message suggests. Hence, ./scripts/checkkconfigsymbols.py reports this invalid reference: CPU_R4x00 Referencing files: arch/mips/dec/prom/init.c When human users encounter this error message, they probably just deal with this minor discrepancy; so, the spelling never was a big deal here. Still, the script ./scripts/checkkconfigsymbols.py has been quite useful to identify a number of bugs with Kconfig symbols and deserves to be executed and checked regularly. So, repair the error message to reduce the reports made the script and simplify to use this script, as new issues are easier to spot when the list of reports is shorter. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* init.c: PROM library initialisation code.
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*
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* Copyright (C) 1998 Harald Koerfgen
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* Copyright (C) 2002, 2004 Maciej W. Rozycki
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/linkage.h>
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#include <linux/smp.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <asm/bootinfo.h>
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#include <asm/cpu.h>
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#include <asm/cpu-type.h>
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#include <asm/processor.h>
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#include <asm/dec/prom.h>
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int (*__rex_bootinit)(void);
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int (*__rex_bootread)(void);
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int (*__rex_getbitmap)(memmap *);
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unsigned long *(*__rex_slot_address)(int);
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void *(*__rex_gettcinfo)(void);
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int (*__rex_getsysid)(void);
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void (*__rex_clear_cache)(void);
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int (*__prom_getchar)(void);
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char *(*__prom_getenv)(char *);
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int (*__prom_printf)(char *, ...);
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int (*__pmax_open)(char*, int);
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int (*__pmax_lseek)(int, long, int);
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int (*__pmax_read)(int, void *, int);
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int (*__pmax_close)(int);
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/*
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* Detect which PROM the DECSTATION has, and set the callback vectors
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* appropriately.
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*/
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void __init which_prom(s32 magic, s32 *prom_vec)
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{
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/*
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* No sign of the REX PROM's magic number means we assume a non-REX
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* machine (i.e. we're on a DS2100/3100, DS5100 or DS5000/2xx)
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*/
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if (prom_is_rex(magic)) {
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/*
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* Set up prom abstraction structure with REX entry points.
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*/
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__rex_bootinit =
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(void *)(long)*(prom_vec + REX_PROM_BOOTINIT);
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__rex_bootread =
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(void *)(long)*(prom_vec + REX_PROM_BOOTREAD);
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__rex_getbitmap =
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(void *)(long)*(prom_vec + REX_PROM_GETBITMAP);
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__prom_getchar =
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(void *)(long)*(prom_vec + REX_PROM_GETCHAR);
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__prom_getenv =
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(void *)(long)*(prom_vec + REX_PROM_GETENV);
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__rex_getsysid =
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(void *)(long)*(prom_vec + REX_PROM_GETSYSID);
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__rex_gettcinfo =
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(void *)(long)*(prom_vec + REX_PROM_GETTCINFO);
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__prom_printf =
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(void *)(long)*(prom_vec + REX_PROM_PRINTF);
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__rex_slot_address =
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(void *)(long)*(prom_vec + REX_PROM_SLOTADDR);
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__rex_clear_cache =
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(void *)(long)*(prom_vec + REX_PROM_CLEARCACHE);
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} else {
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/*
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* Set up prom abstraction structure with non-REX entry points.
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*/
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__prom_getchar = (void *)PMAX_PROM_GETCHAR;
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__prom_getenv = (void *)PMAX_PROM_GETENV;
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__prom_printf = (void *)PMAX_PROM_PRINTF;
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__pmax_open = (void *)PMAX_PROM_OPEN;
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__pmax_lseek = (void *)PMAX_PROM_LSEEK;
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__pmax_read = (void *)PMAX_PROM_READ;
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__pmax_close = (void *)PMAX_PROM_CLOSE;
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}
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}
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void __init prom_init(void)
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{
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extern void dec_machine_halt(void);
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static const char cpu_msg[] __initconst =
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"Sorry, this kernel is compiled for a wrong CPU type!\n";
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s32 argc = fw_arg0;
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s32 *argv = (void *)fw_arg1;
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u32 magic = fw_arg2;
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s32 *prom_vec = (void *)fw_arg3;
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/*
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* Determine which PROM we have
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* (and therefore which machine we're on!)
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*/
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which_prom(magic, prom_vec);
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if (prom_is_rex(magic))
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rex_clear_cache();
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/* Register the early console. */
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register_prom_console();
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/* Were we compiled with the right CPU option? */
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#if defined(CONFIG_CPU_R3000)
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if ((current_cpu_type() == CPU_R4000SC) ||
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(current_cpu_type() == CPU_R4400SC)) {
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static const char r4k_msg[] __initconst =
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"Please recompile with \"CONFIG_CPU_R4X00 = y\".\n";
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printk(cpu_msg);
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printk(r4k_msg);
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dec_machine_halt();
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}
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#endif
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#if defined(CONFIG_CPU_R4X00)
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if ((current_cpu_type() == CPU_R3000) ||
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(current_cpu_type() == CPU_R3000A)) {
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static const char r3k_msg[] __initconst =
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"Please recompile with \"CONFIG_CPU_R3000 = y\".\n";
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printk(cpu_msg);
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printk(r3k_msg);
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dec_machine_halt();
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}
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#endif
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prom_meminit(magic);
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prom_identify_arch(magic);
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prom_init_cmdline(argc, argv, magic);
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}
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