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rapidio: fix IDLE2 bits corruption

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RapidIO spec v.2.1 adds Idle Sequence 2 into LP-Serial Physical Layer.
The fix ensures that corresponding bits are not corrupted during error
handling.

Signed-off-by: Alexandre Bounine <[email protected]>
Cc: Thomas Moll <[email protected]>
Cc: Matt Porter <[email protected]>
Cc: Li Yang <[email protected]>
Cc: Kumar Gala <[email protected]>
Cc: Micha Nelissen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Alexandre Bounine 2010-10-27 15:34:35 -07:00 • committed by Linus Torvalds
commit 388c45ccfa
2 changed files with 3 additions and 9 deletions
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9
drivers/rapidio/rio.c
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@ -871,15 +871,10 @@ int rio_inb_pwrite_handler(union rio_pw_msg *pw_msg)
rdev->em_efptr + RIO_EM_LTL_ERR_DETECT, 0);
}
/* Clear remaining error bits */
/* Clear remaining error bits and Port-Write Pending bit */
rio_mport_write_config_32(mport, destid, hopcount,
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
err_status & RIO_PORT_N_ERR_STS_CLR_MASK);
/* Clear Port-Write Pending bit */
rio_mport_write_config_32(mport, destid, hopcount,
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
RIO_PORT_N_ERR_STS_PW_PEND);
err_status);
return 0;
}