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| Filename | Latest commit message | Latest commit date |
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4e56828a5d
The FSI protocol defines two modes of recovery from CRC errors, this implements both: - If the device returns an ECRC (it detected a CRC error in the command), then we simply issue the command again. - If the master detects a CRC error in the response, we send an E_POLL command which requests a resend of the response without actually re-executing the command (which could otherwise have unwanted side effects such as dequeuing a FIFO twice). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Tested-by: Joel Stanley <joel@jms.id.au> --- Note: This was actually tested by removing some of my fixes, thus causing us to hit occasional CRC errors during high LPC activity. |
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| .. | ||
| fsi-core.c | ||
| fsi-master-gpio.c | ||
| fsi-master-hub.c | ||
| fsi-master.h | ||
| fsi-scom.c | ||
| Kconfig | ||
| Makefile | ||