[PATCH 2/3] Documentation: sysfs: brcmstb-memc: Document new attributes

[Florian Fainelli]

Document the DDR rank, size, total size, width and type attributes.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
 .../ABI/testing/sysfs-platform-brcmstb-memc   | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-platform-brcmstb-memc b/Documentation/ABI/testing/sysfs-platform-brcmstb-memc
index 2f2b750ac2fd..bc969c02b85f 100644
--- a/Documentation/ABI/testing/sysfs-platform-brcmstb-memc
+++ b/Documentation/ABI/testing/sysfs-platform-brcmstb-memc
@@ -1,3 +1,42 @@
+What:		/sys/bus/platform/devices/*/ddr_rank
+Date:		March 2023
+KernelVersion:	6.3
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		Displays whether the device is single or dual rank.
+
+What:		/sys/bus/platform/devices/*/ddr_size
+Date:		March 2023
+KernelVersion:	6.3
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		This field specifies the size of each DRAM device in the first
+		(or only) rank
+
+What:		/sys/bus/platform/devices/*/ddr_total_width
+Date:		March 2023
+KernelVersion:	6.3
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		This field specifies the total data width of all DRAM devices
+		(in each rank)
+
+What:		/sys/bus/platform/devices/*/ddr_type
+Date:		March 2023
+KernelVersion:	6.3
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		This field specifies DRAM technology type. Possible values:
+		DDR2, DDR3, DDR4, GDDR5, GDDR5M, LPDDR4.
+
+What:		/sys/bus/platform/devices/*/ddr_width
+Date:		March 2023
+KernelVersion:	6.3
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		This field specifies the data width of each DRAM device.
+		Possible values are: x8, x16, x32
+
 What:		/sys/bus/platform/devices/*/srpd
 Date:		July 2022
 KernelVersion:	5.21
-- 
2.34.1