firmware: turris-mox-rwtm: Add sysfs documentation

Add sysfs ABI documentation for the sysfs files created by the
turris-mox-rwtm driver.

Link: https://lore.kernel.org/r/20190822014318.19478-4-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm b/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
new file mode 100644 (file)
index 0000000..15595fa
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
@@ -0,0 +1,37 @@
+What:          /sys/firmware/turris-mox-rwtm/board_version
+Date:          August 2019
+KernelVersion: 5.4
+Contact:       Marek Behún <marek.behun@nic.cz>
+Description:   (R) Board version burned into eFuses of this Turris Mox board.
+               Format: %i
+
+What:          /sys/firmware/turris-mox-rwtm/mac_address*
+Date:          August 2019
+KernelVersion: 5.4
+Contact:       Marek Behún <marek.behun@nic.cz>
+Description:   (R) MAC addresses burned into eFuses of this Turris Mox board.
+               Format: %pM
+
+What:          /sys/firmware/turris-mox-rwtm/pubkey
+Date:          August 2019
+KernelVersion: 5.4
+Contact:       Marek Behún <marek.behun@nic.cz>
+Description:   (R) ECDSA public key (in pubkey hex compressed form) computed
+               as pair to the ECDSA private key burned into eFuses of this
+               Turris Mox Board.
+               Format: string
+
+What:          /sys/firmware/turris-mox-rwtm/ram_size
+Date:          August 2019
+KernelVersion: 5.4
+Contact:       Marek Behún <marek.behun@nic.cz>
+Description:   (R) RAM size in MiB of this Turris Mox board as was detected
+               during manufacturing and burned into eFuses. Can be 512 or 1024.
+               Format: %i
+
+What:          /sys/firmware/turris-mox-rwtm/serial_number
+Date:          August 2019
+KernelVersion: 5.4
+Contact:       Marek Behún <marek.behun@nic.cz>
+Description:   (R) Serial number burned into eFuses of this Turris Mox device.
+               Format: %016X

diff --git a/MAINTAINERS b/MAINTAINERS
index cc2c5c99a5fdafcbca069396681cbcfc18a5c9a3..ad386626c9fa7eda5fc5d1a22494aaa31b8ab957 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1632,6 +1632,7 @@ W:        http://mox.turris.cz
 S:     Maintained
 F:     Documentation/ABI/testing/debugfs-moxtet
 F:     Documentation/ABI/testing/sysfs-bus-moxtet-devices
+F:     Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
 F:     Documentation/devicetree/bindings/bus/moxtet.txt
 F:     Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
 F:     Documentation/devicetree/bindings/gpio/gpio-moxtet.txt