diff options
| author | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2011-06-27 09:39:07 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-06-30 01:44:05 +0200 |
| commit | c5697462ae94693764e468b701c616bbbd6f951c (patch) | |
| tree | 806796e0e6052c4fddc56e5511d75b2bfd03e9bd /drivers/char | |
| parent | crypto: caam - fix build warning when DEBUG_FS not configured (diff) | |
| download | linux-c5697462ae94693764e468b701c616bbbd6f951c.tar.xz linux-c5697462ae94693764e468b701c616bbbd6f951c.zip | |
crypto: crypto4xx - Perform read/modify/write on device control register
The Security function on the AMCC SoCs has multiple engines within a
single MMIO range. The crypto driver currently enables the 3DES
functionality by doing a blind write to the device control register.
This can unintentionally disable other functions like the PKA or TRNG
when the driver is loaded.
Perform a read/modify/write to enable the 3DES function instead.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char')
0 files changed, 0 insertions, 0 deletions