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| 1 | +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/mmc/sprd,sdhci-r11.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Spreadtrum SDHCI controller |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Orson Zhai <orsonzhai@gmail.com> |
| 11 | + - Baolin Wang <baolin.wang7@gmail.com> |
| 12 | + - Chunyan Zhang <zhang.lyra@gmail.com> |
| 13 | + |
| 14 | +properties: |
| 15 | + compatible: |
| 16 | + const: sprd,sdhci-r11 |
| 17 | + |
| 18 | + reg: |
| 19 | + maxItems: 1 |
| 20 | + |
| 21 | + interrupts: |
| 22 | + maxItems: 1 |
| 23 | + |
| 24 | + clocks: |
| 25 | + minItems: 2 |
| 26 | + items: |
| 27 | + - description: SDIO source clock |
| 28 | + - description: gate clock for enabling/disabling the device |
| 29 | + - description: gate clock controlling the device for some special platforms (optional) |
| 30 | + |
| 31 | + clock-names: |
| 32 | + minItems: 2 |
| 33 | + items: |
| 34 | + - const: sdio |
| 35 | + - const: enable |
| 36 | + - const: 2x_enable |
| 37 | + |
| 38 | + pinctrl-0: |
| 39 | + description: default/high speed pin control |
| 40 | + maxItems: 1 |
| 41 | + |
| 42 | + pinctrl-1: |
| 43 | + description: UHS mode pin control |
| 44 | + maxItems: 1 |
| 45 | + |
| 46 | + pinctrl-names: |
| 47 | + minItems: 1 |
| 48 | + items: |
| 49 | + - const: default |
| 50 | + - const: state_uhs |
| 51 | + |
| 52 | +patternProperties: |
| 53 | + "^sprd,phy-delay-(legacy|mmc-(ddr52|highspeed|hs[24]00|hs400es)|sd-(highspeed|uhs-sdr(50|104)))$": |
| 54 | + $ref: /schemas/types.yaml#/definitions/uint32-array |
| 55 | + items: |
| 56 | + - description: clock data write line delay value |
| 57 | + - description: clock read command line delay value |
| 58 | + - description: clock read data positive edge delay value |
| 59 | + - description: clock read data negative edge delay value |
| 60 | + description: |
| 61 | + PHY DLL delays are used to delay the data valid window, and align |
| 62 | + the window to the sampling clock. Each cell's delay value unit is |
| 63 | + cycle of the PHY clock. |
| 64 | + |
| 65 | +required: |
| 66 | + - compatible |
| 67 | + - reg |
| 68 | + - interrupts |
| 69 | + - clocks |
| 70 | + - clock-names |
| 71 | + |
| 72 | +allOf: |
| 73 | + - $ref: sdhci-common.yaml# |
| 74 | + |
| 75 | +unevaluatedProperties: false |
| 76 | + |
| 77 | +examples: |
| 78 | + - | |
| 79 | + #include <dt-bindings/clock/sprd,sc9860-clk.h> |
| 80 | + #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 81 | + #include <dt-bindings/interrupt-controller/irq.h> |
| 82 | +
|
| 83 | + mmc@50430000 { |
| 84 | + compatible = "sprd,sdhci-r11"; |
| 85 | + reg = <0x50430000 0x1000>; |
| 86 | + interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; |
| 87 | +
|
| 88 | + clocks = <&aon_prediv CLK_EMMC_2X>, |
| 89 | + <&apahb_gate CLK_EMMC_EB>, |
| 90 | + <&aon_gate CLK_EMMC_2X_EN>; |
| 91 | + clock-names = "sdio", "enable", "2x_enable"; |
| 92 | +
|
| 93 | + pinctrl-0 = <&sd0_pins_default>; |
| 94 | + pinctrl-1 = <&sd0_pins_uhs>; |
| 95 | + pinctrl-names = "default", "state_uhs"; |
| 96 | +
|
| 97 | + bus-width = <8>; |
| 98 | + cap-mmc-hw-reset; |
| 99 | + mmc-hs400-enhanced-strobe; |
| 100 | + mmc-hs400-1_8v; |
| 101 | + mmc-hs200-1_8v; |
| 102 | + mmc-ddr-1_8v; |
| 103 | + non-removable; |
| 104 | + no-sdio; |
| 105 | + no-sd; |
| 106 | +
|
| 107 | + sprd,phy-delay-mmc-ddr52 = <0x3f 0x75 0x14 0x14>; |
| 108 | + sprd,phy-delay-mmc-hs200 = <0x0 0x8c 0x8c 0x8c>; |
| 109 | + sprd,phy-delay-mmc-hs400 = <0x44 0x7f 0x2e 0x2e>; |
| 110 | + sprd,phy-delay-mmc-hs400es = <0x3f 0x3f 0x2e 0x2e>; |
| 111 | + }; |
| 112 | +... |
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