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From: Harsha Vardhan V M <h-vm@ti.com>
To: <u-boot@lists.denx.de>
Cc: <trini@konsulko.com>, <vigneshr@ti.com>, <k-malarvizhi@ti.com>,
	<kamlesh@ti.com>
Subject: [RFC PATCH v2 5/5] doc: cmd: add fuse writebuff cmd documentation
Date: Fri, 14 Mar 2025 19:27:06 +0530	[thread overview]
Message-ID: <20250314135706.184807-6-h-vm@ti.com> (raw)
In-Reply-To: <20250314135706.184807-1-h-vm@ti.com>

Add fuse writebuff sub-system command documentation.

Signed-off-by: Harsha Vardhan V M <h-vm@ti.com>
---
 doc/usage/cmd/fuse.rst | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/doc/usage/cmd/fuse.rst b/doc/usage/cmd/fuse.rst
index 6e330eddfea..42c6e209f99 100644
--- a/doc/usage/cmd/fuse.rst
+++ b/doc/usage/cmd/fuse.rst
@@ -17,6 +17,7 @@ Synopsis
     fuse sense <bank> <word> [<cnt>]
     fuse prog [-y] <bank> <word> <hexval> [<hexval>...]
     fuse override <bank> <word> <hexval> [<hexval>...]
+    fuse writebuff [-y] <addr>
 
 Description
 -----------
@@ -79,6 +80,16 @@ Commands
   fuses have already been programmed or are locked (if the SoC allows to
   override a locked fuse).
 
+- **fuse writebuff [-y] <addr>**
+  Programs fuse data using a structured buffer in memory starting at 'addr'.
+  This operation directly affects the fusebox and is irreversible.
+
+  The structure of the buffer should contain all necessary details for
+  programming fuses, such as the values to be written to the fuse, optional
+  metadata for validation or programming constraints and any configuration
+  data required for the operation. Define CONFIG_CMD_FUSE_WRITEBUFF to
+  enable the fuse writebuff command.
+
 Examples
 --------
 
@@ -144,10 +155,19 @@ fuse override
     u-boot=> fuse override 0 1 0x00000003
       Overriding bank 0 word 0x00000001 with 0x00000003...
 
+fuse writebuff
+~~~~~~~~~~~~~~
+
+::
+
+    u-boot=> fuse writebuff -y 0x84000000
+      Programming fuses with buffer at addr 0x84000000
+
 Configuration
 -------------
 
 The fuse commands are available if CONFIG_CMD_FUSE=y.
+The fuse writebuff command is available if CONFIG_CMD_FUSE_WRITEBUFF=y.
 
 Return code
 -----------
-- 
2.34.1


      parent reply	other threads:[~2025-03-14 13:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-14 13:57 [RFC PATCH v2 0/5] cmd: fuse: Introduce fuse writebuff sub-system and clean up Harsha Vardhan V M
2025-03-14 13:57 ` [RFC PATCH v2 1/5] cmd: fuse: Remove custom string functions Harsha Vardhan V M
2025-03-14 13:57 ` [RFC PATCH v2 2/5] doc: cmd: add documentation for fuse command Harsha Vardhan V M
2025-03-14 16:38   ` Tom Rini
2025-03-17  9:04     ` Harsha Vardhan V M
2025-03-14 13:57 ` [RFC PATCH v2 3/5] cmd: fuse: Add fuse writebuff sub-system command Harsha Vardhan V M
2025-03-14 13:57 ` [RFC PATCH v2 4/5] drivers: k3_fuse: Add fuse sub-system func calls Harsha Vardhan V M
2025-03-14 13:57 ` Harsha Vardhan V M [this message]

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