2 * DaVinci CPU type detection
4 * Author: Kevin Hilman, Deep Root Systems, LLC
6 * Defines the cpu_is_*() macros for runtime detection of DaVinci
7 * device type. In addtion, if support for a given device is not
8 * compiled in to the kernel, the macros return 0 so that
9 * resulting code can be optimized out.
11 * 2009 (c) Deep Root Systems, LLC. This file is licensed under
12 * the terms of the GNU General Public License version 2. This program
13 * is licensed "as is" without any warranty of any kind, whether express
16 #ifndef _ASM_ARCH_CPU_H
17 #define _ASM_ARCH_CPU_H
19 #include <mach/common.h>
22 u8 variant; /* JTAG ID bits 31:28 */
23 u16 part_no; /* JTAG ID bits 27:12 */
24 u16 manufacturer; /* JTAG ID bits 11:1 */
29 /* Can use lower 16 bits of cpu id for a variant when required */
30 #define DAVINCI_CPU_ID_DM6446 0x64460000
31 #define DAVINCI_CPU_ID_DM6467 0x64670000
32 #define DAVINCI_CPU_ID_DM355 0x03550000
33 #define DAVINCI_CPU_ID_DM365 0x03650000
34 #define DAVINCI_CPU_ID_DA830 0x08300000
35 #define DAVINCI_CPU_ID_DA850 0x08500000
37 #define IS_DAVINCI_CPU(type, id) \
38 static inline int is_davinci_ ##type(void) \
40 return (davinci_soc_info.cpu_id == (id)); \
43 IS_DAVINCI_CPU(dm644x, DAVINCI_CPU_ID_DM6446)
44 IS_DAVINCI_CPU(dm646x, DAVINCI_CPU_ID_DM6467)
45 IS_DAVINCI_CPU(dm355, DAVINCI_CPU_ID_DM355)
46 IS_DAVINCI_CPU(dm365, DAVINCI_CPU_ID_DM365)
47 IS_DAVINCI_CPU(da830, DAVINCI_CPU_ID_DA830)
48 IS_DAVINCI_CPU(da850, DAVINCI_CPU_ID_DA850)
50 #ifdef CONFIG_ARCH_DAVINCI_DM644x
51 #define cpu_is_davinci_dm644x() is_davinci_dm644x()
53 #define cpu_is_davinci_dm644x() 0
56 #ifdef CONFIG_ARCH_DAVINCI_DM646x
57 #define cpu_is_davinci_dm646x() is_davinci_dm646x()
59 #define cpu_is_davinci_dm646x() 0
62 #ifdef CONFIG_ARCH_DAVINCI_DM355
63 #define cpu_is_davinci_dm355() is_davinci_dm355()
65 #define cpu_is_davinci_dm355() 0
68 #ifdef CONFIG_ARCH_DAVINCI_DM365
69 #define cpu_is_davinci_dm365() is_davinci_dm365()
71 #define cpu_is_davinci_dm365() 0
74 #ifdef CONFIG_ARCH_DAVINCI_DA830
75 #define cpu_is_davinci_da830() is_davinci_da830()
77 #define cpu_is_davinci_da830() 0
80 #ifdef CONFIG_ARCH_DAVINCI_DA850
81 #define cpu_is_davinci_da850() is_davinci_da850()
83 #define cpu_is_davinci_da850() 0