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器件型号：AM625 工具与软件：
您好！
我想将引导 ttyS2更改为 ttyS4、而引脚配置仍使用 main_uart0。
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1295252/am623-changing-console-from-uart0-to-uart2/4916153#4916153
我参考了上述文章中提到的配置方法、但进行更改后、会打印 U-Boot 和 Linux 引导消息、但不会显示登录界面。
您能帮助我们看一看吗？ 谢谢。
我的补丁如下：
uBoot
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diff --git a/arch/arm/dts/k3-am625-r5-sk.dts b/arch/arm/dts/k3-am625-r5-sk.dts
index f64d6362..b7c37a34 100644
--- a/arch/arm/dts/k3-am625-r5-sk.dts
+++ b/arch/arm/dts/k3-am625-r5-sk.dts
@@ -20,7 +20,7 @@
};
chosen {
- stdout-path = "serial2:115200n8";
+ stdout-path = "serial4:115200n8";
tick-timer = &main_timer0;
};
diff --git a/arch/arm/dts/k3-am625-sk.dts b/arch/arm/dts/k3-am625-sk.dts
index 0e3b554a..20c781cc
--- a/arch/arm/dts/k3-am625-sk.dts
+++ b/arch/arm/dts/k3-am625-sk.dts
@@ -17,7 +17,7 @@
model = "Texas Instruments AM625 SK";
aliases {
Linux
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diff --git a/ti-u-boot/arch/arm/dts/k3-am62x-sk-common.dtsi b/ti-u-boot/arch/arm/dts/k3-am62x-sk-common.dtsi
index 95923508..fbcb42f2
--- a/ti-u-boot/arch/arm/dts/k3-am62x-sk-common.dtsi
+++ b/ti-u-boot/arch/arm/dts/k3-am62x-sk-common.dtsi
@@ -12,2 +12,2 @@
/ {
aliases {
- serial2 = &main_uart0;
+ serial4 = &main_uart0;
mmc0 = &sdhci0;
mmc1 = &sdhci1;
mmc2 = &sdhci2;
spi0 = &ospi0;
ethernet0 = &cpsw_port1;
ethernet1 = &cpsw_port2;
usb0 = &usb0;
usb1 = &usb1;
};
chosen {
- stdout-path = "serial2:115200n8";
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~# cat /etc/securetty
# /etc/securetty: list of terminals on which root is allowed to login.
# See securetty(5) and login(1).
console
# Standard serial ports
ttyS0
ttyS1
ttyS2
ttyS3
ttyS4
# ARM AMBA SoCs
ttyAM0
ttyAM1
ttyAM2
ttyAM3
ttyAMA0
...
