diff mbox series

[v4,2/2] drivers: crypto: caam: i.MX8ULP donot have CAAM page0 access

Message ID 20240429062855.923595-6-pankaj.gupta@nxp.com
State Accepted
Commit d2835701d93cae6d597672ef9dc3fa889867031a
Headers show
Series None | expand

Commit Message

Pankaj Gupta April 29, 2024, 6:28 a.m. UTC 
iMX8ULP have a secure-enclave hardware IP called EdgeLock Enclave(ELE),
that control access to caam controller's register page, i.e., page0.

At all, if the ELE release access to CAAM controller's register page,
it will release to secure-world only.

Clocks are turned on automatically for iMX8ULP. There exists the caam
clock gating bit, but it is not advised to gate the clock at linux, as
optee-os or any other entity might be using it.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
---
 drivers/crypto/caam/ctrl.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 02363c467cf3..bd418dea586d 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -563,11 +563,14 @@  static const struct caam_imx_data caam_vf610_data = {
 	.num_clks = ARRAY_SIZE(caam_vf610_clks),
 };
 
+static const struct caam_imx_data caam_imx8ulp_data;
+
 static const struct soc_device_attribute caam_imx_soc_table[] = {
 	{ .soc_id = "i.MX6UL", .data = &caam_imx6ul_data },
 	{ .soc_id = "i.MX6*",  .data = &caam_imx6_data },
 	{ .soc_id = "i.MX7*",  .data = &caam_imx7_data },
 	{ .soc_id = "i.MX8M*", .data = &caam_imx7_data },
+	{ .soc_id = "i.MX8ULP", .data = &caam_imx8ulp_data },
 	{ .soc_id = "VF*",     .data = &caam_vf610_data },
 	{ .family = "Freescale i.MX" },
 	{ /* sentinel */ }