1/* 2 * DaVinci CPU type detection 3 * 4 * Author: Kevin Hilman, Deep Root Systems, LLC 5 * 6 * Defines the cpu_is_*() macros for runtime detection of DaVinci 7 * device type. In addition, 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. 10 * 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 14 * or implied. 15 */ 16#ifndef _ASM_ARCH_CPU_H 17#define _ASM_ARCH_CPU_H 18 19#include <mach/common.h> 20 21struct davinci_id { 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 */ 25 u32 cpu_id; 26 char *name; 27}; 28 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 36#define DAVINCI_CPU_ID_TNETV107X 0x0b8a0000 37 38#define IS_DAVINCI_CPU(type, id) \ 39static inline int is_davinci_ ##type(void) \ 40{ \ 41 return (davinci_soc_info.cpu_id == (id)); \ 42} 43 44IS_DAVINCI_CPU(dm644x, DAVINCI_CPU_ID_DM6446) 45IS_DAVINCI_CPU(dm646x, DAVINCI_CPU_ID_DM6467) 46IS_DAVINCI_CPU(dm355, DAVINCI_CPU_ID_DM355) 47IS_DAVINCI_CPU(dm365, DAVINCI_CPU_ID_DM365) 48IS_DAVINCI_CPU(da830, DAVINCI_CPU_ID_DA830) 49IS_DAVINCI_CPU(da850, DAVINCI_CPU_ID_DA850) 50IS_DAVINCI_CPU(tnetv107x, DAVINCI_CPU_ID_TNETV107X) 51 52#ifdef CONFIG_ARCH_DAVINCI_DM644x 53#define cpu_is_davinci_dm644x() is_davinci_dm644x() 54#else 55#define cpu_is_davinci_dm644x() 0 56#endif 57 58#ifdef CONFIG_ARCH_DAVINCI_DM646x 59#define cpu_is_davinci_dm646x() is_davinci_dm646x() 60#else 61#define cpu_is_davinci_dm646x() 0 62#endif 63 64#ifdef CONFIG_ARCH_DAVINCI_DM355 65#define cpu_is_davinci_dm355() is_davinci_dm355() 66#else 67#define cpu_is_davinci_dm355() 0 68#endif 69 70#ifdef CONFIG_ARCH_DAVINCI_DM365 71#define cpu_is_davinci_dm365() is_davinci_dm365() 72#else 73#define cpu_is_davinci_dm365() 0 74#endif 75 76#ifdef CONFIG_ARCH_DAVINCI_DA830 77#define cpu_is_davinci_da830() is_davinci_da830() 78#else 79#define cpu_is_davinci_da830() 0 80#endif 81 82#ifdef CONFIG_ARCH_DAVINCI_DA850 83#define cpu_is_davinci_da850() is_davinci_da850() 84#else 85#define cpu_is_davinci_da850() 0 86#endif 87 88#ifdef CONFIG_ARCH_DAVINCI_TNETV107X 89#define cpu_is_davinci_tnetv107x() is_davinci_tnetv107x() 90#else 91#define cpu_is_davinci_tnetv107x() 0 92#endif 93 94#endif 95