Add a note about the support status of each driver interface
diff --git a/docs/psa/accel/index.md b/docs/psa/accel/index.md
index 9a53107..0a3be47 100644
--- a/docs/psa/accel/index.md
+++ b/docs/psa/accel/index.md
@@ -6,3 +6,5 @@
**Documentation**: for now, please see the header file:
[`include/psa/crypto_accel_driver.h`](https://github.com/ARMmbed/mbed-crypto/blob/development/include/psa/crypto_accel_driver.h)
+
+**Mbed Crypto support status**: Not implemented yet. For now, accelerators use the [Mbed TLS alternative cryptography engine interface](https://tls.mbed.org/kb/development/hw_acc_guidelines).
diff --git a/docs/psa/entropy/index.md b/docs/psa/entropy/index.md
index f9b4377..24b11b8 100644
--- a/docs/psa/entropy/index.md
+++ b/docs/psa/entropy/index.md
@@ -6,3 +6,5 @@
**Documentation**: for now, please see the header file:
[`include/psa/crypto_entropy_driver.h`](https://github.com/ARMmbed/mbed-crypto/blob/development/include/psa/crypto_entropy_driver.h)
+
+**Mbed Crypto support status**: Not implemented yet. For now, entropy sources use the [Mbed TLS entropy module](https://tls.mbed.org/kb/how-to/add-entropy-sources-to-entropy-pool).
diff --git a/docs/psa/se/index.md b/docs/psa/se/index.md
index 40972b6..fa229cc 100644
--- a/docs/psa/se/index.md
+++ b/docs/psa/se/index.md
@@ -7,5 +7,7 @@
**Documentation**: for now, please see the header file:
[`include/psa/crypto_se_driver.h`](https://github.com/ARMmbed/mbed-crypto/blob/development/include/psa/crypto_se_driver.h)
+**Mbed Crypto support status**: Partial. Only a few operations are supported: key pair generation, import, export and destruction; signature and verification.
+
**Example**: You can see the code of an [example driver](https://github.com/ARMmbed/mbed-os-atecc608a) for the [Microchip ATECC608A secure element](https://www.microchip.com/wwwproducts/en/ATECC608A).
See the instructions for the [example application using this driver](https://github.com/ARMmbed/mbed-os-example-atecc608a) for how to build [Mbed OS](https://github.com/ARMmbed/mbed-os) with this driver.