[参考译文] AM62A7-Q1：通过 DTS 启用 GPIO

我们已经浏览了您提供的这些链接、我们担心的是、如果我们要切换 GPIO、我们需要修改“k3-am62x-sk-common.dtsi"文件“文件 、还是需要修改“k3-am62a7-sk.dts"文件“文件。我们使用的是 am62a SK EVM (am62a74 soc) 器件。 k3-am62x-sk-common 文件似乎适用于 am62x、因为它具有“AM62X_IOPAD"的“的 iopad 配置。  

尊敬的 Arjun：  

由于只想切换 GPIO、因此只需修改 k3-am62a7-sk.dts。

此致、

Shriya

您好 Shriya、

我尝试在 uboot 和 Linux DTB (k3-am62a7-sk.dts) 上反映我的更改、但我仍然看不到任何更改。 我已经尝试了 SDK “10_01_00_05"和“和“ti-processor-sdk-linux-edgeai-am62a-evm-11.01.07.05"来“来构建自定义 uboot 和内核、对此进行了补充、我经常收到随机的探测错误“

[    1.583697] am65-cpsw-nuss 8000000.ethernet: initializing am65 cpsw nuss version 0x6BA01103, cpsw version 0x6BA81103 Ports: 3 quirks:00000006
[    1.596481] am65-cpsw-nuss 8000000.ethernet: initialized cpsw ale version 1.5
[    1.603610] am65-cpsw-nuss 8000000.ethernet: ALE Table size 512
[    1.610000] pps pps0: new PPS source ptp0
[    1.614287] am65-cpsw-nuss 8000000.ethernet: CPTS ver 0x4e8a010c, freq:500000000, add_val:1 pps:1
[    1.628200] am65-cpsw-nuss 8000000.ethernet: set new flow-id-base 19
[    1.637815] platform 31000000.usb: Fixed dependency cycle(s) with /bus@f0000/i2c@20000000/usb-power-controller@3f/connector
[    1.651092] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    1.656635] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[    1.664404] xhci-hcd xhci-hcd.0.auto: USB3 root hub has no ports
[    1.670427] xhci-hcd xhci-hcd.0.auto: hcc params 0x0258fe6d hci version 0x110 quirks 0x0000008020000010
[    1.679861] xhci-hcd xhci-hcd.0.auto: irq 264, io mem 0x31100000
[    1.686680] hub 1-0:1.0: USB hub found
[    1.690478] hub 1-0:1.0: 1 port detected
[    1.695959] cpufreq: cpufreq_online: CPU0: Running at unlisted initial frequency: 1200000 KHz, changing to: 1250000 KHz
[    1.708272] mmc0: CQHCI version 5.10
[    1.748889] mmc0: SDHCI controller on fa10000.mmc [fa10000.mmc] using ADMA 64-bit
[    1.808199] vddshv5_sdio: Bringing 1800000uV into 3300000-3300000uV
[    1.836128] mmc0: Command Queue Engine enabled
[    1.840594] mmc0: new HS200 MMC card at address 0001
[    1.846061] mmcblk0: mmc0:0001 G1M15L 29.6 GiB
[    1.851830]  mmcblk0: p1 p2
[    1.855155] mmcblk0boot0: mmc0:0001 G1M15L 31.5 MiB
[    1.860951] mmcblk0boot1: mmc0:0001 G1M15L 31.5 MiB
[    1.866727] mmcblk0rpmb: mmc0:0001 G1M15L 4.00 MiB, chardev (239:0)
[    1.999693] tps6594-rtc tps6594-rtc.5.auto: registered as rtc1
[    2.011022] clk: Disabling unused clocks
[    2.018912] ALSA device list:
[    2.021935]   No soundcards found.
[    2.025792] Waiting for root device PARTUUID=076c4a2a-02...
[   12.209184] platform fa00000.mmc: deferred probe pending
[   12.214511] platform regulator-3: deferred probe pending
[   12.219817] platform 2b300050.target-module: deferred probe pending

尊敬的 Arjun：  

我在原始帖子中看到您设置了焊盘配置宏、但您是否还向器件树中添加了 pinmux 和参考节点？ 请查看我上面提到的常见问题解答中提供的以下示例代码：  

 &main_pmx0 {
+       maingpio0_pins_default: maingpio0-default-pins {
+               pinctrl-single,pins = <
+                       AM62X_IOPAD(0x0038, PIN_INPUT, 7) /* (E24) OSPI0_CSn3.GPIO0_14 */
+               >;
+       };
+
        /* First pad number is ALW package and second is AMC package */
        main_uart0_pins_default: main-uart0-pins-default {
                pinctrl-single,pins = <
@@ -221,6 +227,12 @@
        };
 };
 
+&main_gpio0{
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&maingpio0_pins_default>;
+};
+

我还找到了之前存在类似问题的 E2E、您是否可以尝试以下链接中显示的建议？  SK-AM62B-P1：平台 2b300050.target-module：推迟探头待定错误 — 处理器论坛-处理器 — TI E2E 支持论坛。

最后、您是否可以尝试使用 默认的 TI EVM DTS 并查看是否发生了相同的问题？

此致、

Shriya

大家好、我能在结束时切换 GPIO、但仍然收到探测错误

[    2.141898] mmcblk0: mmc0:0001 G1J37E 29.6 GiB
[    2.147976] mmcblk0boot0: mmc0:0001 G1J37E 31.5 MiB
[    2.153826] mmcblk0boot1: mmc0:0001 G1J37E 31.5 MiB
[    2.159599] mmcblk0rpmb: mmc0:0001 G1J37E 4.00 MiB, chardev (239:0)
[    2.290313] tps6594-rtc tps6594-rtc.5.auto: registered as rtc1
[    2.296818] pca953x 1-0022: supply vcc not found, using dummy regulator
[    2.303562] pca953x 1-0022: using AI
[    2.307306] pca953x 1-0022: failed writing register
[    2.312281] pca953x: probe of 1-0022 failed with error -121
[    2.322108] clk: Disabling unused clocks
[    2.330027] ALSA device list:
[    2.332991]   No soundcards found.
[    2.336923] Waiting for root device PARTUUID=076c4a2a-02...
[   12.534044] platform 2b300050.target-module: deferred probe pending
[   12.540326] platform fa00000.mmc: deferred probe pending
[   12.545634] platform regulator-3: deferred probe pendi