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 #ifdef CONFIG_CPU_PXA168
cpu_is_pxa168(void)30 static inline int cpu_is_pxa168(void)
31 {
32 	return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
33 		((mmp_chip_id & 0xfff) == 0x168);
34 }
35 #else
36 #define cpu_is_pxa168()	(0)
37 #endif
38 
39 /* cpu_is_pxa910() is shared on both pxa910 and pxa920 */
40 #ifdef CONFIG_CPU_PXA910
cpu_is_pxa910(void)41 static inline int cpu_is_pxa910(void)
42 {
43 	return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
44 		(((mmp_chip_id & 0xfff) == 0x910) ||
45 		 ((mmp_chip_id & 0xfff) == 0x920));
46 }
47 #else
48 #define cpu_is_pxa910()	(0)
49 #endif
50 
51 #if defined(CONFIG_CPU_MMP2) || defined(CONFIG_MACH_MMP2_DT)
cpu_is_mmp2(void)52 static inline int cpu_is_mmp2(void)
53 {
54 	return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
55 		(((mmp_chip_id & 0xfff) == 0x410) ||
56 		 ((mmp_chip_id & 0xfff) == 0x610));
57 }
58 #else
59 #define cpu_is_mmp2()	(0)
60 #endif
61 
62 #ifdef CONFIG_MACH_MMP3_DT
cpu_is_mmp3(void)63 static inline int cpu_is_mmp3(void)
64 {
65 	return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
66 		((mmp_chip_id & 0xffff) == 0x2128);
67 }
68 
cpu_is_mmp3_a0(void)69 static inline int cpu_is_mmp3_a0(void)
70 {
71 	return (cpu_is_mmp3() &&
72 		((mmp_chip_id & 0x00ff0000) == 0x00a00000));
73 }
74 
cpu_is_mmp3_b0(void)75 static inline int cpu_is_mmp3_b0(void)
76 {
77 	return (cpu_is_mmp3() &&
78 		((mmp_chip_id & 0x00ff0000) == 0x00b00000));
79 }
80 
81 #else
82 #define cpu_is_mmp3()		(0)
83 #define cpu_is_mmp3_a0()	(0)
84 #define cpu_is_mmp3_b0()	(0)
85 #endif
86 
87 #endif /* __ASM_MACH_CPUTYPE_H */
88