crypto/fsl: add RNG support
Register the random number generator with the rng subsystem in u-boot.
This way it can be used by EFI as well as for the 'rng' command.
Signed-off-by: Michael Walle <michael@walle.cc>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/drivers/crypto/fsl/jobdesc.c b/drivers/crypto/fsl/jobdesc.c
index a888758..fbc1aed 100644
--- a/drivers/crypto/fsl/jobdesc.c
+++ b/drivers/crypto/fsl/jobdesc.c
@@ -296,6 +296,16 @@
(handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INITFINAL);
}
+void inline_cnstr_jobdesc_rng(u32 *desc, void *data_out, u32 size)
+{
+ dma_addr_t dma_data_out = virt_to_phys(data_out);
+
+ init_job_desc(desc, 0);
+ append_operation(desc, OP_ALG_ALGSEL_RNG | OP_TYPE_CLASS1_ALG |
+ OP_ALG_PR_ON);
+ append_fifo_store(desc, dma_data_out, size, FIFOST_TYPE_RNGSTORE);
+}
+
/* Change key size to bytes form bits in calling function*/
void inline_cnstr_jobdesc_pkha_rsaexp(uint32_t *desc,
struct pk_in_params *pkin, uint8_t *out,