1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_MACH_CPUTYPE_H
3 #define __ASM_MACH_CPUTYPE_H
4 
5 #if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
6 #include <asm/cputype.h>
7 #endif
8 
9 /*
10  *  CPU   Stepping   CPU_ID      CHIP_ID
11  *
12  * PXA168    S0    0x56158400   0x0000C910
13  * PXA168    A0    0x56158400   0x00A0A168
14  * PXA910    Y1    0x56158400   0x00F2C920
15  * PXA910    A0    0x56158400   0x00F2C910
16  * PXA910    A1    0x56158400   0x00A0C910
17  * PXA920    Y0    0x56158400   0x00F2C920
18  * PXA920    A0    0x56158400   0x00A0C920
19  * PXA920    A1    0x56158400   0x00A1C920
20  * MMP2	     Z0	   0x560f5811   0x00F00410
21  * MMP2      Z1    0x560f5811   0x00E00410
22  * MMP2      A0    0x560f5811   0x00A0A610
23  * MMP3      A0    0x562f5842   0x00A02128
24  * MMP3      B0    0x562f5842   0x00B02128
25  */
26 
27 extern unsigned int mmp_chip_id;
28 
29 #if defined(CONFIG_MACH_MMP2_DT)
cpu_is_mmp2(void)30 static inline int cpu_is_mmp2(void)
31 {
32 	return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
33 		(((mmp_chip_id & 0xfff) == 0x410) ||
34 		 ((mmp_chip_id & 0xfff) == 0x610));
35 }
36 #else
37 #define cpu_is_mmp2()	(0)
38 #endif
39 
40 #ifdef CONFIG_MACH_MMP3_DT
cpu_is_mmp3(void)41 static inline int cpu_is_mmp3(void)
42 {
43 	return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
44 		((mmp_chip_id & 0xffff) == 0x2128);
45 }
46 
cpu_is_mmp3_a0(void)47 static inline int cpu_is_mmp3_a0(void)
48 {
49 	return (cpu_is_mmp3() &&
50 		((mmp_chip_id & 0x00ff0000) == 0x00a00000));
51 }
52 
cpu_is_mmp3_b0(void)53 static inline int cpu_is_mmp3_b0(void)
54 {
55 	return (cpu_is_mmp3() &&
56 		((mmp_chip_id & 0x00ff0000) == 0x00b00000));
57 }
58 
59 #else
60 #define cpu_is_mmp3()		(0)
61 #define cpu_is_mmp3_a0()	(0)
62 #define cpu_is_mmp3_b0()	(0)
63 #endif
64 
65 #endif /* __ASM_MACH_CPUTYPE_H */
66