rng driver enabled to read random number using caam.
Signed-off-by: Gaurav Jain gaurav.jain@nxp.com --- drivers/crypto/fsl/jr.c | 8 +++++++- drivers/crypto/fsl/rng.c | 8 +++++++- 2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/fsl/jr.c b/drivers/crypto/fsl/jr.c index 85a3dac796..acd29924f7 100644 --- a/drivers/crypto/fsl/jr.c +++ b/drivers/crypto/fsl/jr.c @@ -767,8 +767,14 @@ init: return -1; } #if CONFIG_IS_ENABLED(OF_CONTROL) - if (ofnode_valid(scu_node)) + if (ofnode_valid(scu_node)) { + if (IS_ENABLED(CONFIG_DM_RNG)) { + ret = device_bind_driver(NULL, "caam-rng", "caam-rng", NULL); + if (ret) + printf("Couldn't bind rng driver (%d)\n", ret); + } return ret; + } #endif
#ifdef CONFIG_FSL_CORENET diff --git a/drivers/crypto/fsl/rng.c b/drivers/crypto/fsl/rng.c index 0636494805..b568c337a6 100644 --- a/drivers/crypto/fsl/rng.c +++ b/drivers/crypto/fsl/rng.c @@ -26,10 +26,16 @@ struct caam_rng_priv {
static int caam_rng_read_one(struct caam_rng_priv *priv) { + struct udevice *dev; int size = ALIGN(CAAM_RNG_MAX_FIFO_STORE_SIZE, ARCH_DMA_MINALIGN); int ret;
- ret = run_descriptor_jr(priv->desc); + if (uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev) || !dev) { + printf("No CAAM device\n"); + return -ENODEV; + } + + ret = misc_ioctl(dev, CAAM_JR_RUN_DESC, priv->desc); if (ret < 0) return -EIO;