1*cb7aa33aSEmmanuel Vadot# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*cb7aa33aSEmmanuel Vadot%YAML 1.2 3*cb7aa33aSEmmanuel Vadot--- 4*cb7aa33aSEmmanuel Vadot$id: http://devicetree.org/schemas/memory-controllers/intel,ixp4xx-expansion-peripheral-props.yaml# 5*cb7aa33aSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 6*cb7aa33aSEmmanuel Vadot 7*cb7aa33aSEmmanuel Vadottitle: Peripheral properties for Intel IXP4xx Expansion Bus 8*cb7aa33aSEmmanuel Vadot 9*cb7aa33aSEmmanuel Vadotdescription: 10*cb7aa33aSEmmanuel Vadot The IXP4xx expansion bus controller handles access to devices on the 11*cb7aa33aSEmmanuel Vadot memory-mapped expansion bus on the Intel IXP4xx family of system on chips, 12*cb7aa33aSEmmanuel Vadot including IXP42x, IXP43x, IXP45x and IXP46x. 13*cb7aa33aSEmmanuel Vadot 14*cb7aa33aSEmmanuel Vadotmaintainers: 15*cb7aa33aSEmmanuel Vadot - Linus Walleij <linus.walleij@linaro.org> 16*cb7aa33aSEmmanuel Vadot 17*cb7aa33aSEmmanuel Vadotproperties: 18*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-t1: 19*cb7aa33aSEmmanuel Vadot description: Address timing, extend address phase with n cycles. 20*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 21*cb7aa33aSEmmanuel Vadot maximum: 3 22*cb7aa33aSEmmanuel Vadot 23*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-t2: 24*cb7aa33aSEmmanuel Vadot description: Setup chip select timing, extend setup phase with n cycles. 25*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 26*cb7aa33aSEmmanuel Vadot maximum: 3 27*cb7aa33aSEmmanuel Vadot 28*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-t3: 29*cb7aa33aSEmmanuel Vadot description: Strobe timing, extend strobe phase with n cycles. 30*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 31*cb7aa33aSEmmanuel Vadot maximum: 15 32*cb7aa33aSEmmanuel Vadot 33*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-t4: 34*cb7aa33aSEmmanuel Vadot description: Hold timing, extend hold phase with n cycles. 35*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 36*cb7aa33aSEmmanuel Vadot maximum: 3 37*cb7aa33aSEmmanuel Vadot 38*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-t5: 39*cb7aa33aSEmmanuel Vadot description: Recovery timing, extend recovery phase with n cycles. 40*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 41*cb7aa33aSEmmanuel Vadot maximum: 15 42*cb7aa33aSEmmanuel Vadot 43*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-cycle-type: 44*cb7aa33aSEmmanuel Vadot description: The type of cycles to use on the expansion bus for this 45*cb7aa33aSEmmanuel Vadot chip select. 0 = Intel cycles, 1 = Motorola cycles, 2 = HPI cycles. 46*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 47*cb7aa33aSEmmanuel Vadot enum: [0, 1, 2] 48*cb7aa33aSEmmanuel Vadot 49*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-byte-access-on-halfword: 50*cb7aa33aSEmmanuel Vadot description: Allow byte read access on half word devices. 51*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 52*cb7aa33aSEmmanuel Vadot enum: [0, 1] 53*cb7aa33aSEmmanuel Vadot 54*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-hpi-hrdy-pol-high: 55*cb7aa33aSEmmanuel Vadot description: Set HPI HRDY polarity to active high when using HPI. 56*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 57*cb7aa33aSEmmanuel Vadot enum: [0, 1] 58*cb7aa33aSEmmanuel Vadot 59*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-mux-address-and-data: 60*cb7aa33aSEmmanuel Vadot description: Multiplex address and data on the data bus. 61*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 62*cb7aa33aSEmmanuel Vadot enum: [0, 1] 63*cb7aa33aSEmmanuel Vadot 64*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-ahb-split-transfers: 65*cb7aa33aSEmmanuel Vadot description: Enable AHB split transfers. 66*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 67*cb7aa33aSEmmanuel Vadot enum: [0, 1] 68*cb7aa33aSEmmanuel Vadot 69*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-write-enable: 70*cb7aa33aSEmmanuel Vadot description: Enable write cycles. 71*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 72*cb7aa33aSEmmanuel Vadot enum: [0, 1] 73*cb7aa33aSEmmanuel Vadot 74*cb7aa33aSEmmanuel Vadot intel,ixp4xx-eb-byte-access: 75*cb7aa33aSEmmanuel Vadot description: Expansion bus uses only 8 bits. The default is to use 76*cb7aa33aSEmmanuel Vadot 16 bits. 77*cb7aa33aSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 78*cb7aa33aSEmmanuel Vadot enum: [0, 1] 79*cb7aa33aSEmmanuel Vadot 80*cb7aa33aSEmmanuel VadotadditionalProperties: true 81