doc: board: ti: am64x: provide image alt text

Provide alternative text for image.

Fixes: 4bf49bade124 ("doc: board: ti: am64: Add boot flow diagram")
Reported-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

diff --git a/doc/board/ti/am64x_evm.rst b/doc/board/ti/am64x_evm.rst
index 8d3795eb32648266fd238c30b2c184ec55d60746..01e536dac9d7fc44fa5ac2155c3997e40f23f5a3 100644 (file)
--- a/doc/board/ti/am64x_evm.rst
+++ b/doc/board/ti/am64x_evm.rst
@@ -36,6 +36,7 @@ Boot Flow:
 Below is the pictorial representation of boot flow:
 
 .. image:: img/boot_diagram_am64.svg
+  :alt: Boot flow diagram
 
 - Here TIFS acts as master and provides all the critical services. R5/A53
   requests TIFS to get these services done as shown in the above diagram.
@@ -131,10 +132,12 @@ Image formats:
 - tiboot3.bin
 
 .. image:: img/multi_cert_tiboot3.bin.svg
+  :alt: tiboot3.bin image format
 
 - tispl.bin
 
 .. image:: img/nodm_tispl.bin.svg
+  :alt: tispl.bin image format
 
 Switch Setting for Boot Mode
 ----------------------------