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Compute Module • Re: CM4: limited to 32GB sd cards using GPIO22-27 SDIO interface?

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Ah. Should have read further down.

If I use the actual overlay, I get

Code:

[    2.654261] mmc2: sdhost-bcm2835 loaded - DMA enabled (>1)[    2.696039] mmc2: host does not support reading read-only switch, assuming write-enable[    2.716005] mmc2: Host Software Queue enabled[    2.724613] mmc2: new high speed SDXC card at address 5048[    2.734593] mmcblk2: mmc2:5048 SD128 116 GiB[    2.743953] mmcblk2: mmc2:5048 SD128 116 GiB
However, doing dd results in errors:

Code:

[   52.447073] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 385012 bytes), total 32768 (slots), used 68 (slots)[   52.472140] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 385012 bytes), total 32768 (slots), used 68 (slots)[   52.552463] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 385012 bytes), total 32768 (slots), used 68 (slots)[   52.574481] I/O error, dev mmcblk2, sector 7349760 op 0x0:(READ) flags 0x80700 phys_seg 3 prio class 2[   52.596863] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 524276 bytes), total 32768 (slots), used 0 (slots)[   52.619797] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 524276 bytes), total 32768 (slots), used 0 (slots)[   52.700440] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 524276 bytes), total 32768 (slots), used 0 (slots)[   52.722441] I/O error, dev mmcblk2, sector 7350784 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2[   52.744276] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 524276 bytes), total 32768 (slots), used 0 (slots)[   52.767165] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 524276 bytes), total 32768 (slots), used 0 (slots)[   52.847775] bcm2835-dma fe007000.dma-controller: swiotlb buffer is full (sz: 524276 bytes), total 32768 (slots), used 0 (slots)[   52.869718] I/O error, dev mmcblk2, sector 7351808 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
Try with PIO forced on?
dtoverlay=sd0,force_pio

Statistics: Posted by jdb — Mon Apr 15, 2024 10:57 am



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