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mmc: support the DDR mode for eMMC
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
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committed by
Minkyu Kang
parent
8caf46d189
commit
d22e3d46a9
@@ -38,6 +38,7 @@
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#define MMC_MODE_8BIT (1 << 3)
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#define MMC_MODE_SPI (1 << 4)
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#define MMC_MODE_HC (1 << 5)
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#define MMC_MODE_DDR_52MHz (1 << 6)
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#define SD_DATA_4BIT 0x00040000
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@@ -169,10 +170,16 @@
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#define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
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#define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
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#define EXT_CSD_CARD_TYPE_DDR_1_8V (1 << 2)
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#define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3)
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#define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
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| EXT_CSD_CARD_TYPE_DDR_1_2V)
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#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
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#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
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#define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
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#define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */
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#define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */
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#define EXT_CSD_BOOT_ACK_ENABLE (1 << 6)
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#define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3)
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