Add temporary workaround for the reboot issues #564
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| + mmc = find_mmc_device(i); | ||
| + if (mmc && !mmc_init(mmc)) { | ||
| + mmc_available = 1; | ||
| + printf("Lee: mmc %d is availbe!\n", i); |
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Rather a debug left-over 😉
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This is a temporary workaround, so I want to have this log for potential debugging.
After approximately 2 months of operation, the device may fail to check the QSPI idle status. Here is the strange phenomenon: The QSPI remains busy when checking the idle status, becoming idle once stop checking. This commit provides a temporary workaround to bypass the QSPI idle checking. TODO: Implement a permanent solution for QSPI idle checking issue. Related to #440. Signed-off-by: Li Hua Qian <[email protected]>
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| After approximately 2 months of operation, the device may fail to detect | ||
| the eMMC when rebooting. This commit provides a temporary workaround to | ||
| reset the eMMC if detection issues occur. | ||
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Is this issue likely related to how the board is wiring the eMMC, or is this a generic problem that should be addressed at eMMC driver level in U-Boot?
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"For backward compatibility reason, RST_n signal is temporary disabled in device by default." - eMMC standard.
Therefore, this feature is not mandatory. If the workaround proves effective, we'll consider incorporating it into the eMMC driver.
After approximately 2 months of operation, the device may fail to detect the eMMC when rebooting. This commit provides a temporary workaround to reset the eMMC if detection issues occur. TODO: Implement a permanent solution for eMMC detection issues. Related to #440. Signed-off-by: Li Hua Qian <[email protected]>
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Approved since this need customer side debugging info, let's have a final version after getting any feedback. |
u-boot-iot2050: Add temporary workaround for the QSPI issue:
After approximately 2 months of operation, the device may fail to check
the QSPI idle status. Here is the strange phenomenon: The QSPI remains
busy when checking the idle status, becoming idle once stop checking.
Providing a temporary workaround to bypass the QSPI idle checking.
u-boot-iot2050: Reset the eMMC when it isn't reachable:
After approximately 2 months of operation with above workaround, the device
may fail to detect the eMMC when rebooting. Providing a temporary workaround
to reset the eMMC if detection issues occur.
Related to #440.