[调试] sd

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一硬件


二 软件
1 dws

1. <gpio12>
   
2.     <eint_mode>true</eint_mode>
   
3.     <def_mode>0</def_mode>
   
4.     <inpull_en>true</inpull_en>
   
5.     <inpull_selhigh>true</inpull_selhigh>
   
6.     <def_dir>IN</def_dir>
   
7.     <out_high>false</out_high>
   
8.     <varName0>GPIO_SDHC_EINT_PIN</varName0>
   
9.     <smt>false</smt>
   
10.     <ies>true</ies>
    
11. </gpio12>
    
12. 
    
13. <eint12>
    
14.     <varName>MSDC1_INS</varName>
    
15.     <debounce_time>16</debounce_time>
    
16.     <polarity>Low</polarity>
    
17.     <sensitive_level>Level</sensitive_level>
    
18.     <debounce_en>Disable</debounce_en>
    
19. </eint12>

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2 dts


3 其他
这里一般不用改,但8788有这现象不上电  正常现象:  插入应该有VMCH_PMU电压,拔出电压消失,


4 热插拔改非热插拔

1. diff --git a/kernel-3.18/arch/arm/boot/dts/k80_bsp.dts b/kernel-3.18/arch/arm/boot/dts/k80_bsp.dts
   
2. index 78c02e0..73472e3 100755
   
3. --- a/kernel-3.18/arch/arm/boot/dts/k80_bsp.dts
   
4. +++ b/kernel-3.18/arch/arm/boot/dts/k80_bsp.dts
   
5. @@ -159,6 +159,7 @@
   
6.         sd-uhs-sdr25;
   
7.         sd-uhs-sdr50;
   
8.         sd-uhs-sdr104;
   
9. +       non-removable;
   
10.         pinctrl-names = "default","insert_cfg";
    
11.         pinctrl-0 = <&mmc1_pins_insert_default>;
    
12.         pinctrl-1 = <&mmc1_pins_insert_cfg>;
    
13. 
    
14. 
    
15. 
    
16. &mmc1 {
    
17.     clk_src = /bits/ 8 <MSDC1_CLKSRC_187MHZ>;
    
18.     bus-width = <4>;
    
19.     max-frequency = <208000000>;
    
20.     msdc-sys-suspend;
    
21.     cap-sd-highspeed;
    
22.     sd-uhs-sdr12;
    
23.     sd-uhs-sdr25;
    
24.     sd-uhs-sdr50;
    
25.     sd-uhs-sdr104;
    
26.     non-removable;
    
27.     pinctrl-names = "default","insert_cfg";
    
28.     pinctrl-0 = <&mmc1_pins_insert_default>;
    
29.     pinctrl-1 = <&mmc1_pins_insert_cfg>;
    
30.     pinctl = <&mmc1_pins_default>;
    
31.     pinctl_sdr104 = <&mmc1_pins_sdr104>;
    
32.     pinctl_sdr50 = <&mmc1_pins_sdr50>;
    
33.     pinctl_ddr50 = <&mmc1_pins_ddr50>;
    
34.     register_setting = <&mmc1_register_setting_default>;
    
35.     host_function = /bits/ 8 <MSDC_SD>;
    
36.     cd_level = /bits/ 8 <MSDC_CD_LOW>;
    
37.     cd-gpios = <&pio 6 0>;
    
38.     status = "okay";
    
39. };
    

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