1*e2b0330cSDmitry Baryshkov# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2*e2b0330cSDmitry Baryshkov%YAML 1.2 3*e2b0330cSDmitry Baryshkov--- 4*e2b0330cSDmitry Baryshkov$id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#" 5*e2b0330cSDmitry Baryshkov$schema: "http://devicetree.org/meta-schemas/core.yaml#" 6*e2b0330cSDmitry Baryshkov 7*e2b0330cSDmitry Baryshkovtitle: Qualcomm Shared Memory Manager binding 8*e2b0330cSDmitry Baryshkov 9*e2b0330cSDmitry Baryshkovmaintainers: 10*e2b0330cSDmitry Baryshkov - Andy Gross <agross@kernel.org> 11*e2b0330cSDmitry Baryshkov - Bjorn Andersson <bjorn.andersson@linaro.org> 12*e2b0330cSDmitry Baryshkov 13*e2b0330cSDmitry Baryshkovdescription: | 14*e2b0330cSDmitry Baryshkov This binding describes the Qualcomm Shared Memory Manager, used to share data 15*e2b0330cSDmitry Baryshkov between various subsystems and OSes in Qualcomm platforms. 16*e2b0330cSDmitry Baryshkov 17*e2b0330cSDmitry Baryshkovproperties: 18*e2b0330cSDmitry Baryshkov compatible: 19*e2b0330cSDmitry Baryshkov const: qcom,smem 20*e2b0330cSDmitry Baryshkov 21*e2b0330cSDmitry Baryshkov memory-region: 22*e2b0330cSDmitry Baryshkov maxItems: 1 23*e2b0330cSDmitry Baryshkov description: handle to memory reservation for main SMEM memory region. 24*e2b0330cSDmitry Baryshkov 25*e2b0330cSDmitry Baryshkov hwlocks: 26*e2b0330cSDmitry Baryshkov maxItems: 1 27*e2b0330cSDmitry Baryshkov 28*e2b0330cSDmitry Baryshkov qcom,rpm-msg-ram: 29*e2b0330cSDmitry Baryshkov $ref: /schemas/types.yaml#/definitions/phandle 30*e2b0330cSDmitry Baryshkov description: handle to RPM message memory resource 31*e2b0330cSDmitry Baryshkov 32*e2b0330cSDmitry Baryshkovrequired: 33*e2b0330cSDmitry Baryshkov - compatible 34*e2b0330cSDmitry Baryshkov - memory-region 35*e2b0330cSDmitry Baryshkov - hwlocks 36*e2b0330cSDmitry Baryshkov 37*e2b0330cSDmitry BaryshkovadditionalProperties: false 38*e2b0330cSDmitry Baryshkov 39*e2b0330cSDmitry Baryshkovexamples: 40*e2b0330cSDmitry Baryshkov - | 41*e2b0330cSDmitry Baryshkov reserved-memory { 42*e2b0330cSDmitry Baryshkov #address-cells = <1>; 43*e2b0330cSDmitry Baryshkov #size-cells = <1>; 44*e2b0330cSDmitry Baryshkov ranges; 45*e2b0330cSDmitry Baryshkov 46*e2b0330cSDmitry Baryshkov smem_region: smem@fa00000 { 47*e2b0330cSDmitry Baryshkov reg = <0xfa00000 0x200000>; 48*e2b0330cSDmitry Baryshkov no-map; 49*e2b0330cSDmitry Baryshkov }; 50*e2b0330cSDmitry Baryshkov }; 51*e2b0330cSDmitry Baryshkov 52*e2b0330cSDmitry Baryshkov smem { 53*e2b0330cSDmitry Baryshkov compatible = "qcom,smem"; 54*e2b0330cSDmitry Baryshkov 55*e2b0330cSDmitry Baryshkov memory-region = <&smem_region>; 56*e2b0330cSDmitry Baryshkov qcom,rpm-msg-ram = <&rpm_msg_ram>; 57*e2b0330cSDmitry Baryshkov 58*e2b0330cSDmitry Baryshkov hwlocks = <&tcsr_mutex 3>; 59*e2b0330cSDmitry Baryshkov }; 60*e2b0330cSDmitry Baryshkov 61*e2b0330cSDmitry Baryshkov soc { 62*e2b0330cSDmitry Baryshkov #address-cells = <1>; 63*e2b0330cSDmitry Baryshkov #size-cells = <1>; 64*e2b0330cSDmitry Baryshkov ranges; 65*e2b0330cSDmitry Baryshkov 66*e2b0330cSDmitry Baryshkov rpm_msg_ram: sram@fc428000 { 67*e2b0330cSDmitry Baryshkov compatible = "qcom,rpm-msg-ram"; 68*e2b0330cSDmitry Baryshkov reg = <0xfc428000 0x4000>; 69*e2b0330cSDmitry Baryshkov }; 70*e2b0330cSDmitry Baryshkov }; 71*e2b0330cSDmitry Baryshkov 72*e2b0330cSDmitry Baryshkov... 73