267 lines
14 KiB
Plaintext
267 lines
14 KiB
Plaintext
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Qualcomm Technologies Memory Accelerator
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Memory accelerator configures the power-mode (corner) for the
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accelerator.
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Required properties:
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- compatible: Must be "qcom,mem-acc-regulator"
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- regulator-name: A string used to describe the regulator
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- regulator-min-microvolt: Minimum corner value as min constraint, which
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should be 1 for SVS corner
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- regulator-max-microvolt: Maximum corner value as max constraint, which
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should be 4 for SUPER_TURBO or 3 for TURBO
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Optional properties:
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- reg: Register addresses for acc-sel-l1, acc-sel-l2 control, acc-en,
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MEM ACC eFuse address, acc-l1-custom , acc-l2-custom,
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mem-acc-type1, mem-acc-type2, mem-acc-type3, mem-acc-type4,
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mem-acc-type5 and mem-acc-type6.
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- reg-names: Register names. Must be "acc-sel-l1",
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"acc-sel-l2", "acc-en", "efuse_addr",
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"acc-l1-custom", "acc-l2-custom", "mem-acc-type1",
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"mem-acc-type2", "mem-acc-type3", "mem-acc-type4",
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"mem-acc-type5", "mem-acc-type6".
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A given mem-acc-regulator driver must have "acc-sel-l1" or
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"acc-sel-l2" or "mem-acc-type*" reg-names property and
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related register address property.
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- qcom,corner-acc-map Array which maps the APC (application processor)
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corner value to the accelerator corner. The number of elements
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in this property defines the number of accelerator corners.
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Either qcom,corner-acc-map property or qcom,cornerX-reg-config
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properties should be specified.
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- qcom,acc-en-bit-pos Array which specifies bit positions in the
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'acc-en' register. Setting these bits forces the
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the acclerator to use the corner value specified
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in the 'acc-sel-l1' and 'acc-sel-l2' register.
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- qcom,acc-sel-l1-bit-size Integer which specifies the number of bits in
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the 'acc-sel-l1' register which define each L1
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select parameter. If this property is not
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specified, then a default value of 2 is assumed.
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- qcom,acc-sel-l1-bit-pos Array which specifies bit positions in the
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'acc-sel-l1' register. Each element in this array
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is the LSB of an N-bit value where 'N' is
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defined by the qcom,acc-sel-l1-bit-size
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property. This N-bit value specifies the corner
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value used by the accelerator for the L1 cache.
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- qcom,acc-sel-l2-bit-size Integer which specifies the number of bits in
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the 'acc-sel-l2' register which define each L2
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select parameter. If this property is not
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specified, then a default value of 2 is assumed.
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- qcom,acc-sel-l2-bit-pos Array which specifies bit positions in the
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'acc-sel-l2' register. Each element in this array
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is the LSB of an N-bit value where 'N' is
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defined by the qcom,acc-sel-l2-bit-size
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property. This N-bit value specifies the corner
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value used by the accelerator for the L2 cache.
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- qcom,l1-acc-custom-data: Array which maps APC corner values to L1 ACC custom data values.
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The corresponding custom data is written into the custom register
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while switching between APC corners. The custom register address
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is specified by "acc-11-custom" reg-property. The length of the array
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should be equal to number of APC corners.
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- qcom,l2-acc-custom-data: Array which maps APC corner values to L2 ACC custom data values.
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The corresponding custom data is written into the custom register
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while switching between APC corners. The custom register address
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is specified by "acc-l2-custom" reg-property. The length of the array
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should be equal to number of APC corners.
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- qcom,override-acc-fuse-sel: Array of 4 elements which specify the way to read the override fuse.
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The override fuse value is used by the qcom,override-fuse-version-map
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to identify the correct set of override properties.
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The 4 elements with index [0..4] are:
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[0] => the fuse row number of the selector
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[1] => LSB bit position of the bits
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[2] => number of bits
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[3] => fuse reading method, 0 for direct reading or 1 for SCM reading
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- qcom,override-fuse-version-map: Array of integers which each match to a override fuse value.
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Any element in a tuple may use the value 0xffffffff as a wildcard.
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The index of the first value (in the array) which matches the override fuse
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is used to select the right tuples from the other override properties.
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- qcom,override-corner-acc-map: Array of tuples which overrides the existing acc-corner map
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(specified by qcom,corner-acc-map) with corner values selected
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from this property. "qcom,override-corner-acc-map" must contain the
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same number of tuples as "qcom,override-fuse-version-map". These tuples
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are then mapped one-to-one in the order specified. If the
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"qcom,override-fuse-version-map" property is not specified, then
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"qcom,override-corner-acc-map" must contain a single tuple which is then
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applied unconditionally.
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- qcom,override-l1-acc-custom-data: Array of tuples of which overrides the existing l1-acc-custom data
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(specified by qcom,l1-acc-custom-data), with values specified in this property.
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The corresponding custom data is written into the custom register while
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switching between APC corners. The custom register address is specified by
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"acc-11-custom" reg-property. This property can only be specified if the
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"qcom,l1-acc-custom-data" is already defined. If the
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"qcom,override-fuse-version-map" property is specified, then
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qcom,override-l1-acc-custom-data must contain the same number of tuples
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as "qcom,override-fuse-version-map". These tuples are then mapped one-to-one
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in the order specified. If the qcom,override-fuse-version-map property is
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not specified, then "qcom,override-l1-acc-custom-data" must contain a single
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tuple which is then applied unconditionally.
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- qcom,override-l2-acc-custom-data: Array of tuples of which overrides the existing l1-acc-custom data
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(specified by qcom,l2-acc-custom-data), with values specified in this property.
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The corresponding custom data is written into the custom register while
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switching between APC corners. The custom register address is specified by
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"acc-12-custom" reg-property. This property can only be specified if the
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"qcom,l2-acc-custom-data" is already defined. If the
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"qcom,override-fuse-version-map" property is specified, then
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"qcom,override-l2-acc-custom-data" must contain the same number of tuples
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as "qcom,override-fuse-version-map". These tuples are then mapped one-to-one
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in the order specified. If the qcom,override-fuse-version-map property is
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not specified, then "qcom,override-l2-acc-custom-data" must contain a single
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tuple which is then applied unconditionally.
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- qcom,mem-acc-type1: Array which specifies the value to be written to the mem acc type1 register for each fuse
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corner, from the lowest fuse corner to the highest fuse corner. The length of the array
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must be equal to the number of APC fuse corners. This property must be present if reg names
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specifies mem-acc-type1.
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- qcom,mem-acc-type2: Same as qcom,mem-acc-type1 except for mem acc type2 register.
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- qcom,mem-acc-type3: Same as qcom,mem-acc-type1 except for mem acc type3 register.
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- qcom,mem-acc-type4: Same as qcom,mem-acc-type1 except for mem acc type4 register.
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- qcom,mem-acc-type5: Same as qcom,mem-acc-type1 except for mem acc type5 register.
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- qcom,mem-acc-type6: Same as qcom,mem-acc-type1 except for mem acc type6 register.
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- qcom,acc-reg-addr-list: Array of register addresses which need to be programmed during any corner switch.
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This property can be used when multi register configuration is needed during a corner switch.
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- qcom,acc-init-reg-config: Array of tuples specify the multi register configuration sequence need to be programmed
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one time during device boot.
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The format of each tuple as below:
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<register-address-index, value>
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Where register-address-index is used as an index in to qcom,acc-reg-addr-list property
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to get the required register address and the value is programmed in to the corresponding
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mapped register address. This property is required if qcom,acc-corner-addr-val-map
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property specified.
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- qcom,cornerX-reg-config: Array of tuples specify the multi register configuration sequence need to be programmed
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when switching from acc corner X to any other corner. The possible values for X are {1, N},
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where N is the value defined in qcom,num-acc-corners.
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The format of each tuple as below:
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<register-address-index, value>
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Where register-address-index is used as an index in to qcom,acc-reg-addr-list property
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to get the required register address and the value is programmed in to the corresponding
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mapped register address. Same index can be used multiple times when the register is
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required to configure multiple times with different values in the sequence.
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The number of register configuration sequences should be equal to N, where N is the
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value specified in qcom,num-acc-corners property. Also, the number of tuples in each
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register configuration sequence should be same and must be equal to the maximum required
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register configurations in any sequence. The invalid register configuration can be
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specified as <(-1) (-1)>. This property can only be specified when qcom,acc-corner-addr-val-map
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property already defined. Either this property or qcom,corner-acc-map should be specified.
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- qcom,num-acc-corners: The number of acc corners supported. This property is required if qcom,cornerX-reg-config
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property specified.
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- qcom,boot-acc-corner: The acc corner used during device boot. This property is required if qcom,cornerX-reg-config
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property specified.
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- qcom,override-cornerX-reg-config: A grouping of register configuration sequence lists. Each list is same as
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the qcom,cornerX-reg-config property. The possible values for X are {1, N} where N is
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the value defined in qcom,num-acc-corners. This property is used to specify the different
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register configuration sequence lists and select one list among them based on the selected
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index in qcom,override-fuse-version-map property. The selected list overrides the existing
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register configuration sequence list specified in "qcom,cornerX-reg-config". If the
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"qcom,override-fuse-version-map" property is specified, then
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"qcom,override-cornerX-reg-config" must contain the same number of register
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configuration sequence lists as the number of tuples in "qcom,override-fuse-version-map".
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These register configuration sequence lists are then mapped one-to-one
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in the order specified. If the qcom,override-fuse-version-map property is
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not specified, then "qcom,override-cornerX-reg-config" must contain a single
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register configuration sequence list which is then applied unconditionally.
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This property can only be specified if qcom,cornerX-reg-config property is already defined.
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mem_acc_vreg_corner: regulator@fd4aa044 {
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compatible = "qcom,mem-acc-regulator";
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reg = <0xfd4aa048 0x1>, <0xfd4aa044 0x1>, <0xfd4af000 0x1>,
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<0x58000 0x1000>, <0x01942124 0x4>, <0xf900d084 1>,
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<0xf900d088 1>, <0xf900d08c 1>, <0xf900d090 1>;
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reg-names = "acc-en", "acc-sel-l1" , "acc-sel-l2",
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"efuse_addr", "acc-l2-custom", "mem-acc-type1",
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"mem-acc-type2", "mem-acc-type3", "mem-acc-type4";
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regulator-name = "mem_acc_corner";
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regulator-min-microvolt = <1>;
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regulator-max-microvolt = <3>;
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qcom,acc-en-bit-pos = <0>;
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qcom,acc-sel-l1-bit-pos = <0>;
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qcom,acc-sel-l2-bit-pos = <0>;
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qcom,acc-sel-l1-bit-size = <2>;
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qcom,acc-sel-l2-bit-size = <2>;
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qcom,corner-acc-map = <0 1 3>;
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qcom,l2-acc-custom-data = <0x0 0x3000 0x3000>;
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qcom,override-acc-fuse-sel = <0 52 2 0>;
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qcom,override-fuse-version-map = <0>,
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<2>,
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<(-1)>;
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qcom,override-corner-acc-map = <0 0 1>,
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<0 1 2>,
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<0 1 1>;
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qcom,overide-l2-acc-custom-data = <0x0 0x0 0x3000>,
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<0x0 0x3000 0x3000>,
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<0x0 0x0 0x0>;
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qcom,mem-acc-type1 = <0x02 0x02 0x00>;
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qcom,mem-acc-type2 = <0x02 0x02 0x00>;
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qcom,mem-acc-type3 = <0x02 0x02 0x00>;
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qcom,mem-acc-type4 = <0x02 0x02 0x00>;
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qcom,acc-reg-addr-list = <0x01942130 0x01942124 0x01942120>;
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qcom,acc-init-reg-config = <1 0x55> <2 0x02>;
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qcom,num-acc-corners = <3>;
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qcom,boot-acc-corner = <2>;
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qcom,corner1-reg-config =
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 1 -> 1 */
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< 1 0x155>, < 2 0x0>, < 3 0x155>, /* 1 -> 2 */
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>; /* 1 -> 3 */
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qcom,corner2-reg-config =
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< 1 0x155>, <(-1) (-1)>, <(-1) (-1)>, /* 2 -> 1 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 2 -> 2 */
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< 1 0x155>, < 2 0x0>, < 3 0x155>; /* 2 -> 3 */
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qcom,corner3-reg-config =
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>, /* 3 -> 1 */
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< 1 0x155>, <(-1) (-1)>, <(-1) (-1)>, /* 3 -> 2 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>; /* 3 -> 3 */
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qcom,override-corner1-reg-config =
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/* 1st fuse version tuple matched */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 1 -> 1 */
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< 1 0x155>, < 2 0x0>, < 3 0x155>, /* 1 -> 2 */
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>, /* 1 -> 3 */
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/* 2nd fuse version tuple matched */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 1 -> 1 */
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< 1 0x155>, < 2 0x0>, < 3 0x155>, /* 1 -> 2 */
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>, /* 1 -> 3 */
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/* 3rd fuse version tuple matched */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 1 -> 1 */
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< 1 0x155>, < 3 0x22>, < 3 0x155>, /* 1 -> 2 */
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< 1 0x0>, < 2 0x155>, < 3 0x144>; /* 1 -> 3 */
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qcom,override-corner2-reg-config =
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/* 1st fuse version tuple matched */
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< 1 0x144>, < 1 0x11>, <(-1) (-1)>, /* 2 -> 1 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 2 -> 2 */
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< 1 0x155>, < 2 0x0>, < 3 0x155>, /* 2 -> 3 */
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/* 2nd fuse version tuple matched */
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< 1 0x144>, < 2 0x133>, <(-1) (-1)>, /* 2 -> 1 */
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<(-1) (-1)>, < 1 0x33>, <(-1) (-1)>, /* 2 -> 2 */
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< 1 0x133>, < 2 0x0>, < 3 0x155>, /* 2 -> 3 */
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/* 3rd fuse version tuple matched */
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< 1 0x144>, < 1 0x11>, <(-1) (-1)>, /* 2 -> 1 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 2 -> 2 */
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< 1 0x155>, < 2 0x22>, < 3 0x155>; /* 2 -> 3 */
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qcom,override-corner3-reg-config =
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/* 1st fuse version tuple matched */
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>, /* 3 -> 1 */
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< 1 0x155>, <(-1) (-1)>, <(-1) (-1)>, /* 3 -> 2 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 3 -> 3 */
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/* 2nd fuse version tuple matched */
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>, /* 3 -> 1 */
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< 1 0x155>, <(-1) (-1)>, <(-1) (-1)>, /* 3 -> 2 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>, /* 3 -> 3 */
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/* 3rd fuse version tuple matched */
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< 1 0x0>, < 2 0x155>, <(-1) (-1)>, /* 3 -> 1 */
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< 1 0x155>, < 3 0x11>, <(-1) (-1)>, /* 3 -> 2 */
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<(-1) (-1)>, <(-1) (-1)>, <(-1) (-1)>; /* 3 -> 3 */
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};
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