diff options
Diffstat (limited to 'arch/arm/include/asm/arch-meson/boot.h')
| -rw-r--r-- | arch/arm/include/asm/arch-meson/boot.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-meson/boot.h b/arch/arm/include/asm/arch-meson/boot.h index c67d12d06c9..a11dfde719e 100644 --- a/arch/arm/include/asm/arch-meson/boot.h +++ b/arch/arm/include/asm/arch-meson/boot.h @@ -21,4 +21,18 @@ int meson_get_boot_device(void); int meson_get_soc_rev(char *buff, size_t buff_len); +/** + * meson_get_socinfo - retrieve cpu_id of the Amlogic SoC + * + * The value in the following format is read from register: + * +-----------+------------+------------+------------+ + * | family_id | package_id | chip_rev | layout_rev | + * +-----------+------------+------------+------------+ + * | 31 24 | 23 16 | 15 8 | 7 0 | + * +-----------+------------+------------+------------+ + * + * Return: 4 bytes value of cpu_id on success or 0 on failure. + */ +u32 meson_get_socinfo(void); + #endif /* __MESON_BOOT_H__ */ |