[PATCH v4 6/7] docs: reset: document cold reset option

[dmukhin at ford.com]

Update the reset command documentation to cover 'reset -c' and explain
that the default reset type can be overridden through the relevant
Kconfig choice.

Signed-off-by: Denis Mukhin <dmukhin at ford.com>
---
Changes since v3:
- corrected description for reset command
---
 doc/usage/cmd/reset.rst | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/doc/usage/cmd/reset.rst b/doc/usage/cmd/reset.rst
index 79bc8b9deca5..660527d0b8f9 100644
--- a/doc/usage/cmd/reset.rst
+++ b/doc/usage/cmd/reset.rst
@@ -11,15 +11,18 @@ Synopsis
 
 ::
 
-    reset
-    reset -w
+    reset [-c|-w]
     reset -edl
 
 Description
 -----------
 
-Perform reset of the CPU. By default does COLD reset, which resets CPU,
-DDR and peripherals, on some boards also resets external PMIC.
+Perform reset of the CPU. By default does COLD reset unless overridden via
+Kconfig CONFIG_SYSRESET_CMD_RESET_DEFAULT_{COLD,WARM,POWER}.
+
+-c
+    Do COLD reset: reset CPU and peripheral/DDR; on some boards also resets
+    external PMIC.
 
 -w
     Do WARM reset: reset CPU but keep peripheral/DDR/PMIC active.
-- 
2.54.0