Add DT node for HyperBus Memory Controller in the FSS. On J721e, its not possible to use OSPI0 and HBMC simultaneously as they are muxed within the Flash Subsystem hence disable HBMC by default as keep OSPI enabled. Bootloader will fixup DT when it detects HyperFlash instead of OSPI.
Signed-off-by: Vignesh Raghavendra vigneshr@ti.com --- arch/arm/dts/k3-j721e-mcu-wakeup.dtsi | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi index c217866e9a2b..8838771dc1a1 100644 --- a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi +++ b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi @@ -80,4 +80,30 @@ clocks = <&k3_clks 149 0>; clock-names = "fclk"; }; + + fss: fss@47000000 { + compatible = "syscon", "simple-mfd"; + reg = <0x0 0x47000000 0x0 0x100>; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + hbmc_mux: hbmc-mux { + compatible = "mmio-mux"; + #mux-control-cells = <1>; + mux-reg-masks = <0x4 0x2>; /* HBMC select */ + }; + + hbmc: hyperbus@47034000 { + compatible = "ti,j721e-hbmc", "ti,am654-hbmc"; + reg = <0x0 0x47034000 0x0 0x100>, + <0x5 0x00000000 0x1 0x0000000>; + power-domains = <&k3_pds 102 TI_SCI_PD_EXCLUSIVE>; + #address-cells = <2>; + #size-cells = <1>; + mux-controls = <&hbmc_mux 0>; + assigned-clocks = <&k3_clks 102 0>; + assigned-clock-rates = <166666666>; + }; + }; };