内核添加串口设备uart3-uart5失败

别叫你哥许鲜森

内核添加串口设备uart3-uart5失败 [复制链接]

A8核心板，内核版本4.1.18,初始串口设备只有ttyO0-ttyO2三个，现在要使用ttyO5串口，在内核添加了uart3,uart4,uart5

设备树修改如下：

   

内核启动报错信息:

.034815] omap_uart 48022000.serial: no wakeirq for uart1
[    1.040692] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@48022000[0]'
[    1.040865] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 159, base_baud = 3000000) is a OMAP UART1
[    1.051097] omap_uart 48024000.serial: no wakeirq for uart2
[    1.056921] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@48024000[0]'
[    1.057053] 48024000.serial: ttyO2 at MMIO 0x48024000 (irq = 160, base_baud = 3000000) is a OMAP UART2
[    1.067144] pinctrl-single 44e10800.pinmux: bad data for mux pinmux_uart3_pins_default
[    1.075445] pinctrl-single 44e10800.pinmux: no pins entries for pinmux_uart3_pins_default
[    1.084075] omap_uart 481a6000.serial: no wakeirq for uart3
[    1.089919] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@481a6000[0]'
[    1.090042] 481a6000.serial: ttyO3 at MMIO 0x481a6000 (irq = 161, base_baud = 3000000) is a OMAP UART3
[    1.100119] pinctrl-single 44e10800.pinmux: bad data for mux pinmux_uart4_pins_default
[    1.108420] pinctrl-single 44e10800.pinmux: no pins entries for pinmux_uart4_pins_default
[    1.117027] omap_uart 481a8000.serial: no wakeirq for uart4
[    1.122869] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@481a8000[0]'
[    1.122988] 481a8000.serial: ttyO4 at MMIO 0x481a8000 (irq = 162, base_baud = 3000000) is a OMAP UART4
[    1.133055] pinctrl-single 44e10800.pinmux: bad data for mux pinmux_uart5_pins_default
[    1.141354] pinctrl-single 44e10800.pinmux: no pins entries for pinmux_uart5_pins_default
[    1.149974] omap_uart 481aa000.serial: no wakeirq for uart5
[    1.155792] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@481aa000[0]'
[    1.155911] 481aa000.serial: ttyO5 at MMIO 0x481aa000 (irq = 163, base_baud = 3000000) is a OMAP UART5
[    1.166199] [drm] Initialized drm 1.1.0 20060810
 

Jacktang

是设备树修改的原因么

别叫你哥许鲜森

Jacktang 发表于 2022-7-30 21:17 是设备树修改的原因么

不确定是设备树修改错误，还是添加串口设备修改不完全

freebsder

没定义uart3_pins_default之类的