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powerpc/crypto: Enable the PFO-based encryption device

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This patch adds the cas bits to advertise support for the Platform
Facilities Option (PFO) based encryption accelerator device. The nx
device driver provides support for this hardware feature.

Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kent Yoder 2012-04-12 05:39:35 +00:00 committed by Benjamin Herrenschmidt
parent aef7b31c88
commit 7e3a4fa160
1 changed files with 2 additions and 1 deletions
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3
arch/powerpc/kernel/prom_init.c
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@ -705,6 +705,7 @@ static void __init early_cmdline_parse(void)
#endif
#define OV5_TYPE1_AFFINITY 0x80 /* Type 1 NUMA affinity */
#define OV5_PFO_HW_RNG 0x80 /* PFO Random Number Generator */
#define OV5_PFO_HW_ENCR 0x20 /* PFO Encryption Accelerator */
/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02 /* Linux is our OS */
@ -773,7 +774,7 @@ static unsigned char ibm_architecture_vec[] = {
0,
0,
0,
OV5_PFO_HW_RNG,
OV5_PFO_HW_RNG | OV5_PFO_HW_ENCR,
/* option vector 6: IBM PAPR hints */
4 - 2, /* length */