From 270f7fd25b3d1e825d3364eee652c3ccc9d5aae4 Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Fri, 8 Apr 2022 16:46:50 -0500 Subject: ram: k3-ddrss: Allow use of dt provided initial frequency Allow device tree to provide ti,ddr-freq0 to be used as the initial DDR frequency that is set for lpddr4 before initialization of the controller. Make this optional and continue to use PLL bypass frequency as is done currently if ti,ddr-freq0 is not provided. Signed-off-by: Dave Gerlach --- doc/device-tree-bindings/memory-controller/k3-j721e-ddrss.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'doc/device-tree-bindings/memory-controller') diff --git a/doc/device-tree-bindings/memory-controller/k3-j721e-ddrss.txt b/doc/device-tree-bindings/memory-controller/k3-j721e-ddrss.txt index df3290a6b9d..1ea0a701143 100644 --- a/doc/device-tree-bindings/memory-controller/k3-j721e-ddrss.txt +++ b/doc/device-tree-bindings/memory-controller/k3-j721e-ddrss.txt @@ -39,6 +39,8 @@ Optional properties: - reg: Must add "ss" to list if the above ss region is included. - ti,ecc-enable: Boolean flag to enable ECC. This will reduce available DDR by 1/9. +- ti,ddr-freq0: Initial frequency set point, if not provided PLL bypass + frequency will be used. Example (J721E): ================ -- cgit v1.2.3