[mirror_ubuntu-bionic-kernel.git] / arch / sh / include / asm / bugs.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_BUGS_H
#define __ASM_SH_BUGS_H

/*
 * This is included by init/main.c to check for architecture-dependent bugs.
 *
 * Needs:
 *	void check_bugs(void);
 */

/*
 * I don't know of any Super-H bugs yet.
 */

#include <asm/processor.h>

extern void select_idle_routine(void);

static void __init check_bugs(void)
{
	extern unsigned long loops_per_jiffy;
	char *p = &init_utsname()->machine[2]; /* "sh" */

	select_idle_routine();

	current_cpu_data.loops_per_jiffy = loops_per_jiffy;

	switch (current_cpu_data.family) {
	case CPU_FAMILY_SH2:
		*p++ = '2';
		break;
	case CPU_FAMILY_SH2A:
		*p++ = '2';
		*p++ = 'a';
		break;
	case CPU_FAMILY_SH3:
		*p++ = '3';
		break;
	case CPU_FAMILY_SH4:
		*p++ = '4';
		break;
	case CPU_FAMILY_SH4A:
		*p++ = '4';
		*p++ = 'a';
		break;
	case CPU_FAMILY_SH4AL_DSP:
		*p++ = '4';
		*p++ = 'a';
		*p++ = 'l';
		*p++ = '-';
		*p++ = 'd';
		*p++ = 's';
		*p++ = 'p';
		break;
	case CPU_FAMILY_SH5:
		*p++ = '6';
		*p++ = '4';
		break;
	case CPU_FAMILY_UNKNOWN:
		/*
		 * Specifically use CPU_FAMILY_UNKNOWN rather than
		 * default:, so we're able to have the compiler whine
		 * about unhandled enumerations.
		 */
		break;
	}

	printk("CPU: %s\n", get_cpu_subtype(&current_cpu_data));

#ifndef __LITTLE_ENDIAN__
	/* 'eb' means 'Endian Big' */
	*p++ = 'e';
	*p++ = 'b';
#endif
	*p = '\0';
}
#endif /* __ASM_SH_BUGS_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef __ASM_SH_BUGS_H
	3	#define __ASM_SH_BUGS_H
	4
	5	/*
	6	* This is included by init/main.c to check for architecture-dependent bugs.
	7	*
	8	* Needs:
	9	* void check_bugs(void);
	10	*/
	11
	12	/*
	13	* I don't know of any Super-H bugs yet.
	14	*/
	15
	16	#include <asm/processor.h>
	17
f533c3d3 PM	18	extern void select_idle_routine(void);
f533c3d3 PM	19
1da177e4 LT	20	static void __init check_bugs(void)
1da177e4 LT	21	{
1da177e4	22	extern unsigned long loops_per_jiffy;
41504c39	23	char p = &init_utsname()->machine[2]; / "sh" */
1da177e4	24
f533c3d3 PM	25	select_idle_routine();
f533c3d3 PM	26
11c19656	27	current_cpu_data.loops_per_jiffy = loops_per_jiffy;
1da177e4	28
e82da214 PM	29	switch (current_cpu_data.family) {
e82da214 PM	30	case CPU_FAMILY_SH2:
1da177e4 LT	31	*p++ = '2';
1da177e4 LT	32	break;
e82da214	33	case CPU_FAMILY_SH2A:
b229632a YS	34	*p++ = '2';
	35	*p++ = 'a';
	36	break;
e82da214	37	case CPU_FAMILY_SH3:
1da177e4 LT	38	*p++ = '3';
1da177e4 LT	39	break;
e82da214	40	case CPU_FAMILY_SH4:
1da177e4 LT	41	*p++ = '4';
1da177e4 LT	42	break;
e82da214	43	case CPU_FAMILY_SH4A:
5b19c908 PM	44	*p++ = '4';
	45	*p++ = 'a';
	46	break;
e82da214	47	case CPU_FAMILY_SH4AL_DSP:
41504c39 PM	48	*p++ = '4';
	49	*p++ = 'a';
	50	*p++ = 'l';
	51	*p++ = '-';
	52	*p++ = 'd';
	53	*p++ = 's';
	54	*p++ = 'p';
	55	break;
e82da214	56	case CPU_FAMILY_SH5:
29e0d209 PM	57	*p++ = '6';
	58	*p++ = '4';
	59	break;
e82da214	60	case CPU_FAMILY_UNKNOWN:
29e0d209	61	/*
e82da214 PM	62	* Specifically use CPU_FAMILY_UNKNOWN rather than
	63	* default:, so we're able to have the compiler whine
	64	* about unhandled enumerations.
29e0d209	65	*/
1da177e4 LT	66	break;
	67	}
	68
11c19656	69	printk("CPU: %s\n", get_cpu_subtype(&current_cpu_data));
1da177e4 LT	70
	71	#ifndef __LITTLE_ENDIAN__
	72	/* 'eb' means 'Endian Big' */
	73	*p++ = 'e';
	74	*p++ = 'b';
	75	#endif
	76	*p = '\0';
	77	}
	78	#endif /* __ASM_SH_BUGS_H */