162306a36Sopenharmony_ciWhat:		/sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_offset
262306a36Sopenharmony_ciDate:		January 2011
362306a36Sopenharmony_ciContact:	Chuanxiao Dong <chuanxiao.dong@intel.com>
462306a36Sopenharmony_ciDescription:
562306a36Sopenharmony_ci		Enhanced area is a new feature defined in eMMC4.4 standard.
662306a36Sopenharmony_ci		eMMC4.4 or later card can support such feature. This kind of
762306a36Sopenharmony_ci		area can help to improve the card performance. If the feature
862306a36Sopenharmony_ci		is enabled, this attribute will indicate the start address of
962306a36Sopenharmony_ci		enhanced data area. If not, this attribute will be -EINVAL.
1062306a36Sopenharmony_ci		Unit Byte. Format decimal.
1162306a36Sopenharmony_ci
1262306a36Sopenharmony_ciWhat:		/sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_size
1362306a36Sopenharmony_ciDate:		January 2011
1462306a36Sopenharmony_ciContact:	Chuanxiao Dong <chuanxiao.dong@intel.com>
1562306a36Sopenharmony_ciDescription:
1662306a36Sopenharmony_ci		Enhanced area is a new feature defined in eMMC4.4 standard.
1762306a36Sopenharmony_ci		eMMC4.4 or later card can support such feature. This kind of
1862306a36Sopenharmony_ci		area can help to improve the card performance. If the feature
1962306a36Sopenharmony_ci		is enabled, this attribute will indicate the size of enhanced
2062306a36Sopenharmony_ci		data area. If not, this attribute will be -EINVAL.
2162306a36Sopenharmony_ci		Unit KByte. Format decimal.
22