Re: [PATCH 1/2] arm64: dts: rockchip: Add support for rk3399 sapphire SOM

From: Jacob Chen
Date: Fri Aug 04 2017 - 05:51:55 EST

2017-08-03 18:34 GMT+08:00 Jacob Chen <jacobchen110@xxxxxxxxx>:
> Hi all,
>
> 2017-08-03 18:32 GMT+08:00 Jacob Chen <jacob-chen@xxxxxxxxxx>:
>> Add support for the rk3399 sapphire SOM board.
>> This board works in a combination with the excavator main board.
>>
>> You can get more info from below link:
>> http://opensource.rock-chips.com/wiki_Excavator_sapphire_board
>>
>> Signed-off-by: Jacob Chen <jacob-chen@xxxxxxxxxx>
>> ---
>> arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi | 646 ++++++++++++++++++++++
>> 1 file changed, 646 insertions(+)
>> create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
>> new file mode 100644
>> index 0000000..4c6b369
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
>> @@ -0,0 +1,646 @@
>> +/*
>> + * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.
>> + *
>> + * This file is dual-licensed: you can use it either under the terms
>> + * of the GPL or the X11 license, at your option. Note that this dual
>> + * licensing only applies to this file, and not this project as a
>> + * whole.
>> + *
>> + * a) This file is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation; either version 2 of the
>> + * License, or (at your option) any later version.
>> + *
>> + * This file is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> + * GNU General Public License for more details.
>> + *
>> + * Or, alternatively,
>> + *
>> + * b) Permission is hereby granted, free of charge, to any person
>> + * obtaining a copy of this software and associated documentation
>> + * files (the "Software"), to deal in the Software without
>> + * restriction, including without limitation the rights to use,
>> + * copy, modify, merge, publish, distribute, sublicense, and/or
>> + * sell copies of the Software, and to permit persons to whom the
>> + * Software is furnished to do so, subject to the following
>> + * conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
>> + * included in all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
>> + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
>> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
>> + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
>> + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>> + * OTHER DEALINGS IN THE SOFTWARE.
>> + */
>> +
>> +#include "dt-bindings/pwm/pwm.h"
>> +#include "rk3399.dtsi"
>> +#include "rk3399-opp.dtsi"
>> +
>> +/ {
>> + compatible = "rockchip,rk3399-sapphire", "rockchip,rk3399";
>> +
>> + backlight: backlight {
>> + compatible = "pwm-backlight";
>> + pwms = <&pwm0 0 25000 0>;
>> + brightness-levels = <
>> + 0 1 2 3 4 5 6 7
>> + 8 9 10 11 12 13 14 15
>> + 16 17 18 19 20 21 22 23
>> + 24 25 26 27 28 29 30 31
>> + 32 33 34 35 36 37 38 39
>> + 40 41 42 43 44 45 46 47
>> + 48 49 50 51 52 53 54 55
>> + 56 57 58 59 60 61 62 63
>> + 64 65 66 67 68 69 70 71
>> + 72 73 74 75 76 77 78 79
>> + 80 81 82 83 84 85 86 87
>> + 88 89 90 91 92 93 94 95
>> + 96 97 98 99 100 101 102 103
>> + 104 105 106 107 108 109 110 111
>> + 112 113 114 115 116 117 118 119
>> + 120 121 122 123 124 125 126 127
>> + 128 129 130 131 132 133 134 135
>> + 136 137 138 139 140 141 142 143
>> + 144 145 146 147 148 149 150 151
>> + 152 153 154 155 156 157 158 159
>> + 160 161 162 163 164 165 166 167
>> + 168 169 170 171 172 173 174 175
>> + 176 177 178 179 180 181 182 183
>> + 184 185 186 187 188 189 190 191
>> + 192 193 194 195 196 197 198 199
>> + 200 201 202 203 204 205 206 207
>> + 208 209 210 211 212 213 214 215
>> + 216 217 218 219 220 221 222 223
>> + 224 225 226 227 228 229 230 231
>> + 232 233 234 235 236 237 238 239
>> + 240 241 242 243 244 245 246 247
>> + 248 249 250 251 252 253 254 255>;
>> + default-brightness-level = <200>;
>> + };
>> +
>> + clkin_gmac: external-gmac-clock {
>> + compatible = "fixed-clock";
>> + clock-frequency = <125000000>;
>> + clock-output-names = "clkin_gmac";
>> + #clock-cells = <0>;
>> + };
>> +
>> + dc_12v: dc-12v {
>> + compatible = "regulator-fixed";
>> + regulator-name = "dc_12v";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <12000000>;
>> + regulator-max-microvolt = <12000000>;
>> + };
>> +
>> + /* switched by pmic_sleep */
>> + vcc1v8_s3: vcca1v8_s3: vcc1v8-s3 {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vcc1v8_s3";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + vin-supply = <&vcc_1v8>;
>> + };
>> +
>> + vcc3v3_sys: vcc3v3-sys {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vcc3v3_sys";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + vin-supply = <&vcc_sys>;
>> + };
>> +
>> + vcc_sys: vcc-sys {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vcc_sys";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <5000000>;
>> + regulator-max-microvolt = <5000000>;
>> + vin-supply = <&dc_12v>;
>> + };
>> +
>> + vcc5v0_host: vcc5v0-host-regulator {
>> + compatible = "regulator-fixed";
>> + enable-active-high;
>> + gpio = <&gpio1 RK_PD1 GPIO_ACTIVE_HIGH>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&vcc5v0_host_en>;
>> + regulator-name = "vcc5v0_host";
>> + regulator-always-on;
>> + vin-supply = <&vcc_sys>;
>> + };
>> +};
>> +
>> +&cpu_l0 {
>> + cpu-supply = <&vdd_cpu_l>;
>> +};
>> +
>> +&cpu_l1 {
>> + cpu-supply = <&vdd_cpu_l>;
>> +};
>> +
>> +&cpu_l2 {
>> + cpu-supply = <&vdd_cpu_l>;
>> +};
>> +
>> +&cpu_l3 {
>> + cpu-supply = <&vdd_cpu_l>;
>> +};
>> +
>> +&cpu_b0 {
>> + cpu-supply = <&vdd_cpu_b>;
>> +};
>> +
>> +&cpu_b1 {
>> + cpu-supply = <&vdd_cpu_b>;
>> +};
>> +
>> +&emmc_phy {
>> + status = "okay";
>> +};
>> +
>> +&gmac {
>> + assigned-clocks = <&cru SCLK_RMII_SRC>;
>> + assigned-clock-parents = <&clkin_gmac>;
>> + clock_in_out = "input";
>> + phy-supply = <&vcc_lan>;
>> + phy-mode = "rgmii";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&rgmii_pins>;
>> + snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
>> + snps,reset-active-low;
>> + snps,reset-delays-us = <0 10000 50000>;
>> + tx_delay = <0x28>;
>> + rx_delay = <0x11>;
>> + status = "okay";
>> +};
>> +
>> +&gpu {
>> + mali-supply = <&vdd_gpu>;
>> + status = "okay";
>> +};
>> +
>> +&hdmi {
>> + ddc-i2c-bus = <&i2c3>;
>> + status = "okay";
>> +};
>> +
>> +&i2c0 {
>> + clock-frequency = <400000>;
>> + i2c-scl-rising-time-ns = <168>;
>> + i2c-scl-falling-time-ns = <4>;
>> + status = "okay";
>> +
>> + rk808: pmic@1b {
>> + compatible = "rockchip,rk808";
>> + reg = <0x1b>;
>> + interrupt-parent = <&gpio1>;
>> + interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
>> + #clock-cells = <1>;
>> + clock-output-names = "xin32k", "rk808-clkout2";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pmic_int_l &pmic_dvs2>;
>> + rockchip,system-power-controller;
>> + wakeup-source;
>> +
>> + vcc1-supply = <&vcc_sys>;
>> + vcc2-supply = <&vcc_sys>;
>> + vcc3-supply = <&vcc_sys>;
>> + vcc4-supply = <&vcc_sys>;
>> + vcc6-supply = <&vcc_sys>;
>> + vcc7-supply = <&vcc_sys>;
>> + vcc8-supply = <&vcc3v3_sys>;
>> + vcc9-supply = <&vcc_sys>;
>> + vcc10-supply = <&vcc_sys>;
>> + vcc11-supply = <&vcc_sys>;
>> + vcc12-supply = <&vcc3v3_sys>;
>> + vddio-supply = <&vcc1v8_pmu>;
>> +
>> + regulators {
>> + vdd_center: DCDC_REG1 {
>> + regulator-name = "vdd_center";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <750000>;
>> + regulator-max-microvolt = <1350000>;
>> + regulator-ramp-delay = <6001>;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vdd_cpu_l: DCDC_REG2 {
>> + regulator-name = "vdd_cpu_l";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <750000>;
>> + regulator-max-microvolt = <1350000>;
>> + regulator-ramp-delay = <6001>;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vcc_ddr: DCDC_REG3 {
>> + regulator-name = "vcc_ddr";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-state-mem {
>> + regulator-on-in-suspend;
>> + };
>> + };
>> +
>> + vcc_1v8: DCDC_REG4 {
>> + regulator-name = "vcc_1v8";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-state-mem {
>> + regulator-on-in-suspend;
>> + regulator-suspend-microvolt = <1800000>;
>> + };
>> + };
>> +
>> + vcc1v8_dvp: LDO_REG1 {
>> + regulator-name = "vcc1v8_dvp";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vcc3v0_tp: LDO_REG2 {
>> + regulator-name = "vcc3v0_tp";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <3000000>;
>> + regulator-max-microvolt = <3000000>;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vcc1v8_pmu: LDO_REG3 {
>> + regulator-name = "vcc1v8_pmu";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-state-mem {
>> + regulator-on-in-suspend;
>> + regulator-suspend-microvolt = <1800000>;
>> + };
>> + };
>> +
>> + vcc_sdio: LDO_REG4 {
>> + regulator-name = "vcc_sdio";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <3300000>;
>> + regulator-state-mem {
>> + regulator-on-in-suspend;
>> + regulator-suspend-microvolt = <3300000>;
>> + };
>> + };
>> +
>> + vcca3v0_codec: LDO_REG5 {
>> + regulator-name = "vcca3v0_codec";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <3000000>;
>> + regulator-max-microvolt = <3000000>;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vcc_1v5: LDO_REG6 {
>> + regulator-name = "vcc_1v5";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1500000>;
>> + regulator-max-microvolt = <1500000>;
>> + regulator-state-mem {
>> + regulator-on-in-suspend;
>> + regulator-suspend-microvolt = <1500000>;
>> + };
>> + };
>> +
>> + vcca1v8_codec: LDO_REG7 {
>> + regulator-name = "vcca1v8_codec";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vcc_3v0: LDO_REG8 {
>> + regulator-name = "vcc_3v0";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <3000000>;
>> + regulator-max-microvolt = <3000000>;
>> + regulator-state-mem {
>> + regulator-on-in-suspend;
>> + regulator-suspend-microvolt = <3000000>;
>> + };
>> + };
>> +
>> + vcc3v3_s3: vcc_lan: SWITCH_REG1 {
>> + regulator-name = "vcc3v3_s3";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vcc3v3_s0: SWITCH_REG2 {
>> + regulator-name = "vcc3v3_s0";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> + };
>> + };
>> +
>> + vdd_cpu_b: regulator@40 {
>> + compatible = "silergy,syr827";
>> + reg = <0x40>;
>> + fcs,suspend-voltage-selector = <1>;
>> + regulator-name = "vdd_cpu_b";
>> + regulator-min-microvolt = <712500>;
>> + regulator-max-microvolt = <1500000>;
>> + regulator-ramp-delay = <1000>;
>> + regulator-always-on;
>> + regulator-boot-on;
>> + vin-supply = <&vcc_sys>;
>> +
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vdd_gpu: regulator@41 {
>> + compatible = "silergy,syr828";
>> + reg = <0x41>;
>> + fcs,suspend-voltage-selector = <1>;
>> + regulator-name = "vdd_gpu";
>> + regulator-min-microvolt = <712500>;
>> + regulator-max-microvolt = <1500000>;
>> + regulator-ramp-delay = <1000>;
>> + regulator-always-on;
>> + regulator-boot-on;
>> + vin-supply = <&vcc_sys>;
>> +
>> + regulator-state-mem {
>> + regulator-off-in-suspend;
>> + };
>> + };
>> +
>> + vdd_log: vdd-log {
>> + compatible = "pwm-regulator";
>> + pwms = <&pwm2 0 25000 1>;
>> + regulator-name = "vdd_log";
>> + regulator-always-on;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <800000>;
>> + regulator-max-microvolt = <1400000>;
>> + vin-supply = <&vcc_sys>;
>> + };
>> +};
>> +
>> +&i2c3 {
>> + i2c-scl-rising-time-ns = <450>;
>> + i2c-scl-falling-time-ns = <15>;
>> + status = "okay";
>> +};
>> +
>> +&io_domains {
>> + status = "okay";
>> +
>> + bt656-supply = <&vcc_3v0>;
>> + audio-supply = <&vcca1v8_codec>;
>> + sdmmc-supply = <&vcc_sdio>;
>> + gpio1830-supply = <&vcc_3v0>;
>> +};
>> +
>> +&pcie_phy {
>> + status = "okay";
>> +};
>> +
>> +&pcie0 {
>> + assigned-clocks = <&cru SCLK_PCIEPHY_REF>;
>> + assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>;
>> + assigned-clock-rates = <100000000>;
>> + ep-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
>> + num-lanes = <4>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pcie_clkreqn>;
>> + status = "okay";
>> +};
>> +
>> +&pmu_io_domains {
>> + pmu1830-supply = <&vcc_3v0>;
>> + status = "okay";
>> +};
>> +
>> +&pinctrl {
>> + pmic {
>> + pmic_int_l: pmic-int-l {
>> + rockchip,pins =
>> + <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
>> + };
>> +
>> + pmic_dvs2: pmic-dvs2 {
>> + rockchip,pins =
>> + <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
>> + };
>> +
>> + vsel1_gpio: vsel1-gpio {
>> + rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>;
>> + };
>> +
>> + vsel2_gpio: vsel2-gpio {
>> + rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
>> + };
>> + };
>> +
>> + usb2 {
>> + vcc5v0_host_en: vcc5v0-host-en {
>> + rockchip,pins =
>> + <4 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
>> + };
>> + };
>> +};
>> +
>> +&pwm0 {
>> + status = "okay";
>> +};
>> +
>> +&pwm2 {
>> + status = "okay";
>> +};
>> +
>> +&saradc {
>> + vref-supply = <&vcca1v8_s3>;
>> + status = "okay";
>> +};
>> +
>> +&sdhci {
>> + bus-width = <8>;
>> + keep-power-in-suspend;
>> + mmc-hs400-1_8v;
>> + mmc-hs400-enhanced-strobe;
>> + non-removable;
>> + status = "okay";
>> +};
>> +
>> +&sdio0 {
>> + clock-frequency = <50000000>;
>> + clock-freq-min-max = <200000 50000000>;
>> + bus-width = <4>;
>> + disable-wp;
>> + cap-sd-highspeed;
>> + cap-sdio-irq;
>> + keep-power-in-suspend;
>> + mmc-pwrseq = <&sdio_pwrseq>;
>> + non-removable;
>> + num-slots = <1>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
>> + sd-uhs-sdr104;
>> + status = "okay";
>> +};
>> +
>> +&sdmmc {
>> + clock-frequency = <150000000>;
>> + clock-freq-min-max = <100000 150000000>;
>> + bus-width = <4>;
>> + cap-mmc-highspeed;
>> + cap-sd-highspeed;
>> + disable-wp;
>> + num-slots = <1>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
>> + vqmmc-supply = <&vcc_sdio>;
>> + status = "okay";
>> +};
>> +
>> +&tsadc {
>> + /* tshut mode 0:CRU 1:GPIO */
>> + rockchip,hw-tshut-mode = <1>;
>> + /* tshut polarity 0:LOW 1:HIGH */
>> + rockchip,hw-tshut-polarity = <1>;
>> + status = "okay";
>> +};
>> +
>> +&u2phy0 {
>> + status = "okay";
>> +
>> + u2phy0_otg: otg-port {
>> + status = "okay";
>> + };
>> +
>> + u2phy0_host: host-port {
>> + phy-supply = <&vcc5v0_host>;
>> + status = "okay";
>> + };
>> +};
>> +
>> +&u2phy1 {
>> + status = "okay";
>> +
>> + u2phy1_otg: otg-port {
>> + status = "okay";
>> + };
>> +
>> + u2phy1_host: host-port {
>> + phy-supply = <&vcc5v0_host>;
>> + status = "okay";
>> + };
>> +};
>> +
>> +&uart0 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&uart0_xfer &uart0_cts>;
>> + status = "okay";
>> +};
>> +
>> +&uart2 {
>> + status = "okay";
>> +};
>> +
>> +&usb_host0_ehci {
>> + status = "okay";
>> +};
>> +
>> +&usb_host0_ohci {
>> + status = "okay";
>> +};
>> +
>> +&usb_host1_ehci {
>> + status = "okay";
>> +};
>> +
>> +&usb_host1_ohci {
>> + status = "okay";
>> +};
>> +
>> +&usbdrd3_0 {
>> + status = "okay";
>> +};
>> +
>> +&usbdrd_dwc3_0 {
>> + status = "okay";
>> + dr_mode = "otg";
>> +};
>> +
>> +&usbdrd3_1 {
>> + status = "okay";
>> +};
>> +
>> +&usbdrd_dwc3_1 {
>> + status = "okay";
>> + dr_mode = "host";
>> +};
>> +
>> +&vopb {
>> + status = "okay";
>> +};
>> +
>> +&vopb_mmu {
>> + status = "okay";
>> +};
>> +
>> +&vopl {
>> + status = "okay";
>> +};
>> +
>> +&vopl_mmu {
>> + status = "okay";
>> +};
>> --
>> 2.7.4
>>
>
> http://imgur.com/a/6K0t8
>
> I can have display in this board,
> but need some assigned clock-rate
>
> assigned-clocks = <&cru ACLK_VOP0>, <&cru HCLK_VOP0>;
> assigned-clock-rates = <400000000>, <200000000>;
>
> assigned-clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>;
> assigned-clock-rates = <400000000>, <200000000>;
>
>
> Is it a issue? Are there any pacthes in 4.14 will fix it?


Interesting.... I found this board could be bought in taobao..
https://item.taobao.com/item.htm?spm=a1z09.2.0.0.1f30a53flpk7IA&id=554454257549&_u=31t0eea9a1c