diff --git a/bindings/arm/msm/imem.yaml b/bindings/arm/msm/imem.yaml new file mode 100644 index 00000000..d0396739 --- /dev/null +++ b/bindings/arm/msm/imem.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bindings/arm/msm/imem.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: QTI IMEM + +maintainers: + - Satya Durga Srinivasu Prabhala + +description: | + IMEM is fast on-chip memory used for various debug features and dma transactions. + +properties: + compatible: + const: qcom,msm-imem + + reg: + description: start address and size of imem memory + + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + + ranges: true + description: + Includes the child address, parent address, & ength. The child address is + assumed to be 0. + +patternProperties: + "[a-zA-Z0-9]@[a-z0-9]" + type: object + + properties: + compatible: + oneOf: + - const: qcom,msm-imem-pil + description: Peripheral Image Loader (PIL) + + - const: qcom,msm-imem-boot_stats + description: Bootloader Stats + + - const: qcom,msm-imem-cache_erp + description: Cache error reporting + + - const: qcom,msm-imem-mem_dump_table + desciption: Memory Dump table + + - const: qcom,msm-imem-restart_reason + description: Device restart reason + + - const: qcom,msm-imem-dload-type + description: Download Mode Type + + - const: qcom,msm-imem-download_mode + description: Download Mode + + - const: qcom,msm-imem-emergency_download_mode + description: Emergency Download Mode + + - const: qcom,msm-imem-kaslr_offset + description: Kernel Address Space Layout Randomization (KASLR) offset + + - const: qcom,msm-imem-minidump + description: Subsystem Restart's (SSR) Minidump Offset + + - const: qcom,msm-imem-diag-dload + description: USB Diag download mode region + + - const: qcom,msm-imem-pil-disable-timeout + description: Offset to set PIL debug cookie + + - const: qcom,msm-imem-mss-dsm + description: Modem DSM memory region info + + reg: + description: Start address and the size of the region + + required: + - compatible + - reg + +required: + - compatible + - reg + +examples: + - | + qcom,msm-imem { + compatible = "qcom,msm-imem"; + reg = <0xdeadbeef 0x1000>; /* < start_address size > */ + ranges = <0x0 0xdeadbeef 0x1000>; + #address-cells = <1>; + #size-cells = <1>; + + download_mode@0 { + compatible = "qcom,msm-imem-download_mode"; + reg = <0x0 8>; + }; + + restart_reason@65c { + compatible = "qcom,msm-imem-restart_reason"; + reg = <0x65c 4>; + }; + + imem_cache_erp: cache_erp@6a4 { + compatible = "qcom,msm-imem-cache_erp"; + reg = <0x6a4 4>; + }; + + boot_stats@6b0 { + compatible = "qcom,msm-imem-boot_stats"; + reg = <0x6b0 32>; + }; + + kaslr_offset@6d0 { + compatible = "qcom,msm-imem-kaslr_offset"; + reg = <0x6d0 12>; + }; + + + pil@94c { + compatible = "qcom,msm-imem-pil"; + reg = <0x94c 200>; + }; + + emergency_download_mode@fe0 { + compatible = "qcom,msm-imem-emergency_download_mode"; + reg = <0xfe0 12>; + }; + + ss_mdump@b88 { + compatible = "qcom,msm-imem-minidump"; + reg = <0xb88 28>; + }; + };