From b1433affd9a9de10150c31929564f68ca338911a Mon Sep 17 00:00:00 2001
From: Joshua Watt <jpewhacker@gmail.com>
Date: Thu, 31 Aug 2023 10:51:37 -0600
Subject: cmd: gpt: Add gpt_partition_bootable variable

Adds an additional variable called gpt_partition_bootable that indicates
if the given partition is bootable or not.

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
---
 doc/usage/cmd/gpt.rst | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'doc/usage')

diff --git a/doc/usage/cmd/gpt.rst b/doc/usage/cmd/gpt.rst
index 6387c8116fe..b505b159d0a 100644
--- a/doc/usage/cmd/gpt.rst
+++ b/doc/usage/cmd/gpt.rst
@@ -108,6 +108,9 @@ gpt_partition_name
 gpt_partition_entry
     the partition number in the table, e.g. 1, 2, 3, etc.
 
+gpt_partition_bootable
+    1 if the partition is marked as bootable, 0 if not
+
 gpt swap
 ~~~~~~~~
 
@@ -167,6 +170,8 @@ Get the information about the partition named 'rootfs'::
     rootfs
     => echo ${gpt_partition_entry}
     2
+    => echo ${gpt_partition_bootable}
+    0
 
 Get the list of partition names on the disk::
 
-- 
cgit v1.2.3


From a1e793add5dd21c2a1b08bc57ac99e43183913b6 Mon Sep 17 00:00:00 2001
From: Joshua Watt <jpewhacker@gmail.com>
Date: Thu, 31 Aug 2023 10:51:38 -0600
Subject: cmd: gpt: Add command to set bootable flags

Adds a command that can be used to modify the GPT partition table to
indicate which partitions should have the bootable flag set

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
---
 doc/usage/cmd/gpt.rst | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'doc/usage')

diff --git a/doc/usage/cmd/gpt.rst b/doc/usage/cmd/gpt.rst
index b505b159d0a..288dd365c00 100644
--- a/doc/usage/cmd/gpt.rst
+++ b/doc/usage/cmd/gpt.rst
@@ -13,6 +13,7 @@ Synopsis
     gpt read <interface> <dev> [<varname>]
     gpt rename <interface> <dev> <part> <name>
     gpt repair <interface> <dev>
+    gpt set-bootable <interface> <dev> <partition list>
     gpt setenv <interface> <dev> <partition name>
     gpt swap <interface> <dev> <name1> <name2>
     gpt verify <interface> <dev> [<partition string>]
@@ -90,6 +91,13 @@ gpt repair
 
 Repairs the GPT partition tables if it they become corrupted.
 
+gpt set-bootable
+~~~~~~~~~~~~~~~~
+
+Sets the bootable flag for all partitions in the table. If the partition name
+is in 'partition list' (separated by ','), the bootable flag is set, otherwise
+it is cleared. CONFIG_CMD_GPT_RENAME=y is required.
+
 gpt setenv
 ~~~~~~~~~~
 
@@ -187,3 +195,7 @@ Get the GUID for a disk::
     => gpt guid mmc gpt_disk_uuid
     => echo ${gpt_disk_uuid}
     bec9fc2a-86c1-483d-8a0e-0109732277d7
+
+Set the bootable flag for the 'boot' partition and clear it for all others::
+
+    => gpt set-bootable mmc 0 boot
-- 
cgit v1.2.3


From 7cc1d87d7e1e64d7bb280ead94c55a51c4f3ee63 Mon Sep 17 00:00:00 2001
From: Joshua Watt <jpewhacker@gmail.com>
Date: Thu, 31 Aug 2023 10:51:41 -0600
Subject: cmd: gpt: Add command to swap partition order

Adds a command called "gpt transpose" which will swap the order two
partition table entries in the GPT partition table (but leaves them
pointing to the same locations on disk).

This can be useful for swapping bootloaders in systems that use an A/B
partitioning scheme where the bootrom is hard coded to look for the
bootloader in a specific index in the GPT partition table.

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
---
 doc/usage/cmd/gpt.rst | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'doc/usage')

diff --git a/doc/usage/cmd/gpt.rst b/doc/usage/cmd/gpt.rst
index 288dd365c00..f6115ecb0ee 100644
--- a/doc/usage/cmd/gpt.rst
+++ b/doc/usage/cmd/gpt.rst
@@ -16,6 +16,7 @@ Synopsis
     gpt set-bootable <interface> <dev> <partition list>
     gpt setenv <interface> <dev> <partition name>
     gpt swap <interface> <dev> <name1> <name2>
+    gpt transpose <interface> <dev> <part1> <part2>
     gpt verify <interface> <dev> [<partition string>]
     gpt write <interface> <dev> <partition string>
 
@@ -126,6 +127,13 @@ Changes the names of all partitions that are named 'name1' to be 'name2', and
 all partitions named 'name2' to be 'name1'. CONFIG_CMD_GPT_RENAME=y is
 required.
 
+gpt transpose
+~~~~~~~~~~~~~
+
+Swaps the order of two partition table entries with indexes 'part1' and 'part2'
+in the partition table, but otherwise leaves the actual partition data
+untouched.
+
 gpt verify
 ~~~~~~~~~~
 
@@ -199,3 +207,20 @@ Get the GUID for a disk::
 Set the bootable flag for the 'boot' partition and clear it for all others::
 
     => gpt set-bootable mmc 0 boot
+
+Swap the order of the 'boot' and 'rootfs' partition table entries::
+    => gpt setenv mmc 0 rootfs
+    => echo ${gpt_partition_entry}
+    2
+    => gpt setenv mmc 0 boot
+    => echo ${gpt_partition_entry}
+    1
+
+    => gpt transpose mmc 0 1 2
+
+    => gpt setenv mmc 0 rootfs
+    => echo ${gpt_partition_entry}
+    1
+    => gpt setenv mmc 0 boot
+    => echo ${gpt_partition_entry}
+    2
-- 
cgit v1.2.3