Dear Lei Wen, > As mmc host limitation, the max number of block in one go > should be limited to 65535, and the max buffer size should > not excceed 512k bytes.
Where does this limitation supposedly come from? And, 65535 blocks (of 512) are already near 32 MB. TOP9000> mmci mci: setting clock 194000 Hz, block size 512 mci: setting clock 24832000 Hz, block size 512 mci: setting clock 194000 Hz, block size 512 mci: setting clock 194000 Hz, block size 512 mci: setting clock 24832000 Hz, block size 512 Device: mci Manufacturer ID: 3 OEM: 5344 Name: SD32G Tran Speed: 25000000 Rd Block Len: 512 SD version 2.0 High Capacity: Yes Capacity: 31914983424 Bus Width: 4-bit TOP9000> mmc write 0 20000000 1000 18000 MMC write: dev # 0, block # 4096, count 98304 ... mci: setting clock 194000 Hz, block size 512 mci: setting clock 24832000 Hz, block size 512 mci: setting clock 194000 Hz, block size 512 mci: setting clock 194000 Hz, block size 512 mci: setting clock 24832000 Hz, block size 512 98304 blocks written: OK TOP9000> Reinhard _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
