我一直在努力讓eMMC芯片在我的嵌入式Linux平臺上工作。到目前爲止,我已經做了以下內容:在嵌入式linux上採用全新eMMC的後續步驟
(1)在驅動程序/ MMC /主機添加自定義驅動 (2)編譯的內核和目標圖像 (3)加載圖像到目標並啓動板
在啓動前,我看到這些:
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mmcblk0: mmc0:0001 4YMD3R 3.64 GiB
mmc0: calculated max. discard sectors 4579328 for timeout 2684354 ms
mmcblk0boot0: mmc0:0001 4YMD3R partition 1 4.00 MiB
mmc0: calculated max. discard sectors 4579328 for timeout 2684354 ms
mmcblk0boot1: mmc0:0001 4YMD3R partition 2 4.00 MiB
.
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mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0
end_request: I/O error, dev mmcblk0, sector 0
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Buffer I/O error on device mmcblk0, logical block 0
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mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x900
mmcblk0: retrying using single block read
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mmcblk0boot1: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x900
mmcblk0boot1: retrying using single block read
.
mmcblk0boot1: unknown partition table
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mmcblk0boot0: unknown partition table
我開機後,這裏的/ proc /分區的輸出:
# cat /proc/partitions
major minor #blocks name
31 0 7824 mtdblock0
179 0 3817472 mmcblk0
179 16 4096 mmcblk0boot1
179 8 4096 mmcblk0boot0
誰能告訴我以下:
- 我的設備是否正常工作?
- 如何開始將數據寫入userdata分區? (安裝失敗的mmcbllk0)
- 如何創建更多通用分區?
- 如何創建更多(常規)分區?
在此先感謝,我對此非常感興趣,而且我無法在任何地方找到此信息。
elDukae