Siflower IOMUX Table

Siflower IOMUX Table
1. 介绍
- 1.1. 适用人员
- 1.2. 开发环境
2. SF19A2890 fullmask IOMUX Table
3. 如何在shell命令行获取PAD脚的状态
- 3.1. kernel选择DEBUG_FS配置
- 3.2. 命令
FAQ

1. 介绍

Siflower的芯片提供一些PAD脚，这些PAD脚可以配置为不同的功能,本文提供了Siflower sf19a2890 fullmaks芯片的IOMUX Table

1.1. 适用人员

有查看Siflower IOMUX Table的需求的人员

1.2. 开发环境

可以正常编译通过的Siflower SDK环境该环境的搭建请参考快速入门

2. SF19A2890 fullmask IOMUX Table

下面的表格就是Siflower的SF19A2890 fullmask的IOMUX表格, 在该表格中会说明Siflowr的每一个可以配置的PAD的支持配置成那些模式.

Index	Pin Name	Default Mode	GPIO_MODE	FUNC_MODE0	FUNC_MODE1	FUNC_MODE2	FUNC_MODE3
0	JTAG_TDO	FUNC_MODE0	GPIO0	JTAG_TDO	UART1_TXD	ETH_LED0	CATIP_SCLK
1	JTAG_TDI	FUNC_MODE0	GPIO1	JTAG_TDI	UART1_RXD	ETH_LED1	CATIP_SS
2	JTAG_TMS	FUNC_MODE0	GPIO2	JTAG_TMS	UART1_CTS	ETH_LED2	CATIP_MOSI
3	JTAG_TCK	FUNC_MODE0	GPIO3	JTAG_TCK	UART1_RTS	ETH_LED3	PWM0
4	JTAG_RST	FUNC_MODE0	GPIO4	JTAG_RST	NC	PWM5	CATIP_MISO
5	SPI_TXD	FUNC_MODE0	GPIO5	SPI2_TXD	NC	NC	NC
6	SPI_RXD	FUNC_MODE0	GPIO6	SPI2_RXD	NC	NC	NC
7	SPI_CLK	FUNC_MODE0	GPIO7	SPI2_CLK	NC	NC	NC
8	SPI_CSN	FUNC_MODE0	GPIO8	SPI2_CSN	NC	NC	NC
9	UART_TX	FUNC_MODE0	GPIO9	UART0_TXD	NC	NC	NC
10	UART_RX	FUNC_MODE0	GPIO10	UART0_RXD	NC	NC	NC
11	I2C_DAT	FUNC_MODE0	GPIO11	UART0_CTS	UART2_RXD	I2C0_DAT	NC
12	I2C_CLK	FUNC_MODE0	GPIO12	UART0_RTS	UART2_TXD	I2C0_CLK	NC
13	RGMII_GTX_CLK	GPIO_MODE	GPIO13	RGMII0_GTX_CLK / RMII_REF_CLK	NC	NC
14	RGMII_TXCLK	GPIO_MODE	GPIO14	RGMII0_TXCLK	NC	NC	NC
15	RGMII_TXD0	GPIO_MODE	GPIO15	RGMII0_TXD0 / RMII_TXD0	NC	NC	NC
16	RGMII_TXD1	GPIO_MODE	GPIO16	RGMII0_TXD1 / RMII_TXD1	NC	NC	NC
17	RGMII_TXD2	GPIO_MODE	GPIO17	RGMII0_TXD2	NC	NC	NC
18	RGMII_TXD3	GPIO_MODE	GPIO18	RGMII0_TXD3	NC	NC	NC
19	RGMII_TXCTL	GPIO_MODE	GPIO19	RGMII0_TXCTL / RMII_TX_EN	NC	NC	NC
20	RGMII_RXCLK	GPIO_MODE	GPIO20	RGMII0_RXCLK	NC	NC	NC
21	RGMII_RXD0	GPIO_MODE	GPIO21	RGMII0_RXD0 / RMII_RXD0	NC	NC	NC
22	RGMII_RXD1	GPIO_MODE	GPIO22	RGMII0_RXD1 / RMII_RXD1	NC	NC	NC
23	RGMII_RXD2	GPIO_MODE	GPIO23	RGMII0_RXD2	NC	NC	NC
24	RGMII_RXD3	GPIO_MODE	GPIO24	RGMII0_RXD3	NC	NC	NC
25	RGMII_RXCTL	GPIO_MODE	GPIO25	RGMII0_RXCTL / RMII_CRS_DV	NC	NC	NC
26	RGMII_COL	GPIO_MODE	GPIO26	RGMII0_COL	NC	NC	NC
27	RGMII_CRS	GPIO_MODE	GPIO27	RGMII0_CRS	NC	NC	NC
28	RGMII_MDC	GPIO_MODE	GPIO28	RGMII0_MDC / RMII_MDC	NC	NC	NC
29	RGMII_MDIO	GPIO_MODE	GPIO29	RGMII0_MDIO / RMII_MDIO	NC	NC	NC
30	HB0_PA_EN	GPIO_MODE	GPIO30	HB0_PA_EN	NC	NC	CATIP_DEBUG_IO0
31	HB0_LNA_EN	GPIO_MODE	GPIO31	HB0_LNA_EN	NC	NC	CATIP_DEBUG_IO1
32	HB0_SW_CTRL0	GPIO_MODE	GPIO32	HB0_SW_CTRL0	NC	NC	CATIP_DEBUG_IO2
33	HB0_SW_CTRL1	GPIO_MODE	GPIO33	HB0_SW_CTRL1	NC	NC	CATIP_DEBUG_IO3
34	HB1_PA_EN	GPIO_MODE	GPIO34	HB1_PA_EN	NC	NC	CATIP_DEBUG_IO4
35	HB1_LNA_EN	GPIO_MODE	GPIO35	HB1_LNA_EN	NC	NC	CATIP_DEBUG_IO5
36	HB1_SW_CTRL0	GPIO_MODE	GPIO36	HB1_SW_CTRL0	NC	NC	CATIP_DEBUG_IO6
37	HB1_SW_CTRL1	GPIO_MODE	GPIO37	HB1_SW_CTRL1	NC	NC	CATIP_DEBUG_IO7
38	LB0_PA_EN	GPIO_MODE	GPIO38	LB0_PA_EN	NC	NC	CATIP_DEBUG_IO8
39	LB0_LNA_EN	GPIO_MODE	GPIO39	LB0_LNA_EN	NC	NC	CATIP_DEBUG_IO9
40	LB0_SW_CTRL0	GPIO_MODE	GPIO40	LB0_SW_CTRL0	NC	NC	CATIP_DEBUG_IO10
41	LB0_SW_CTRL1	GPIO_MODE	GPIO41	LB0_SW_CTRL1	NC	NC	CATIP_DEBUG_IO11
42	LB1_PA_EN	GPIO_MODE	GPIO42	LB1_PA_EN	NC	NC	CATIP_DEBUG_IO12
43	LB1_LNA_EN	GPIO_MODE	GPIO43	LB1_LNA_EN	NC	NC	CATIP_DEBUG_IO13
44	LB1_SW_CTRL0	GPIO_MODE	GPIO44	LB1_SW_CTRL0	NC	NC	CATIP_DEBUG_IO14
45	LB1_SW_CTRL1	GPIO_MODE	GPIO45	LB1_SW_CTRL1	NC	NC	CATIP_DEBUG_IO15
46	CLK_OUT	GPIO_MODE	GPIO46	CLK_OUT	NC	NC	NC
47	EXT_CLK_IN	FUNC_MODE0	GPIO47	EXT_CLK_IN	NC	NC	NC
48	DRVVBUS0	GPIO_MODE	GPIO48	DRVVBUS0	NC	NC	NC

3. 如何在shell命令行获取PAD脚的状态

3.1. kernel选择DEBUG_FS配置

可以通过make kernel_menuconfig选择, 然后编译镜像. 如何编译烧录镜像参考快速入门

DEBUG_FS的位置如下:

Kernel hacking  --->
    Compile-time checks and compiler options  ---> 
        [*]Debug Filesystem 

也可以通过直接修改修改target/linux/siflower/sf19a28-fullmask/config-3.18_$(board)文件,添加如下内容 CONFIG_DEBUG_FS=y

3.2. 命令

烧录选择了CONFIG_DEBUG_FS的镜像,在运行的时候就可以通过命令cat /sys/kernel/debug/pinctrl/pinctrl/pins,在结合IOMUX Table即可知道每一个PAD所处的模式, 该命令的显示结果如下所示:

root@OpenWrt:/# cat /sys/kernel/debug/pinctrl/pinctrl/pins   
registered pins: 51   
pin 0 (gpio-0) function func0 in lo; irq 31 (none)  
pin 1 (gpio-1) function func0 in lo; irq 32 (none)  
pin 2 (gpio-2) function func0 in lo; irq 33 (none)  
pin 3 (gpio-3) function func0 in lo; irq 34 (none)  
pin 4 (gpio-4) function func0 in lo; irq 35 (none)  
pin 5 (gpio-5) function func0 in lo; irq 36 (none)  
pin 6 (gpio-6) function func0 in lo; irq 37 (none)  
pin 7 (gpio-7) function func0 in lo; irq 38 (none)  
pin 8 (gpio-8) function gpio_in in hi; irq 39 (none)  
pin 9 (gpio-9) function func0 in lo; irq 40 (none)  
pin 10 (gpio-10) function func0 in lo; irq 41 (none)  
pin 11 (gpio-11) function gpio_out in hi; irq 42 (edge-both)  
pin 12 (gpio-12) function func0 in lo; irq 43 (none)  
pin 13 (gpio-13) function func0 in lo; irq 44 (none)  
pin 14 (gpio-14) function func0 in lo; irq 45 (none)  
pin 15 (gpio-15) function func0 in lo; irq 46 (none)  
pin 16 (gpio-16) function func0 in lo; irq 47 (none)  
pin 17 (gpio-17) function func0 in lo; irq 48 (none)  
pin 18 (gpio-18) function func0 in lo; irq 49 (none)  
pin 19 (gpio-19) function func0 in lo; irq 50 (none)  
pin 20 (gpio-20) function func0 in lo; irq 51 (none)  
pin 21 (gpio-21) function func0 in lo; irq 52 (none)  
pin 22 (gpio-22) function func0 in lo; irq 53 (none)  
pin 23 (gpio-23) function func0 in lo; irq 54 (none)  
pin 24 (gpio-24) function func0 in lo; irq 55 (none)  
pin 25 (gpio-25) function func0 in lo; irq 56 (none)  
pin 26 (gpio-26) function func0 in lo; irq 57 (none)  
pin 27 (gpio-27) function func0 in lo; irq 58 (none)  
pin 28 (gpio-28) function func0 in lo; irq 59 (none)  
pin 29 (gpio-29) function func0 in lo; irq 60 (none)  
pin 30 (gpio-30) function func0 in lo; irq 61 (none)  
pin 31 (gpio-31) function func0 in lo; irq 62 (none)  
pin 32 (gpio-32) function func0 in lo; irq 63 (none)  
pin 33 (gpio-33) function func0 in lo; irq 64 (none)  
pin 34 (gpio-34) function func0 in lo; irq 65 (none)  
pin 35 (gpio-35) function func0 in lo; irq 66 (none)  
pin 36 (gpio-36) function func0 in lo; irq 67 (none)  
pin 37 (gpio-37) function func0 in lo; irq 68 (none)  
pin 38 (gpio-38) function func0 in lo; irq 69 (none)  
pin 39 (gpio-39) function func0 in lo; irq 70 (none)  
pin 40 (gpio-40) function func0 in lo; irq 71 (none)  
pin 41 (gpio-41) function func0 in lo; irq 72 (none)  
pin 42 (gpio-42) function func0 in lo; irq 73 (none)  
pin 43 (gpio-43) function func0 in lo; irq 74 (none)  
pin 44 (gpio-44) function func0 in lo; irq 75 (none)  
pin 45 (gpio-45) function func0 in lo; irq 76 (none)  
pin 46 (gpio-46) function func0 in lo; irq 77 (none)  
pin 47 (gpio-47) function func0 in lo; irq 78 (none)  
pin 48 (gpio-48) function gpio_out in lo; irq 79 (none)  
pin 49 (gpio-49) function func0 in lo; irq 80 (none)  
pin 50 (gpio-50) function func0 in lo; irq 81 (none)  
root@OpenWrt:/#   

其中pin 0 (gpio-0)代表的就是index为0, 而且是gpio-0; function func0 代表的就是function的模式为func0; in lo代表的就是该pin的状态(是高电平还是低电平);irq 42 (edge-both)代表的是该pin注册的中断号是42, 且为edge-both触发方式(边沿触发).

中断的触发方式有:

Interrupt trigger mode	Description
none	触发方式未知
edge-rising	上升沿触发
edge-falling	下降压触发
edge-both	边沿触发
level-high	高电平触发
level-low	低电平触发

Function有如下

Function	Description
func0	对应IOMUX Tabel查看
func1	对应IOMUX Tabel查看
func2	对应IOMUX Tabel查看
func3	对应IOMUX Tabel查看
gpio_in	GPIO的Input模式
gpio_out	GPIO的Output模式

in Pin脚的电平状态有如下

status	Description
lo	低电平
hi	高电平

FAQ

本文主要是提供Siflower的IOMUX Table, 关于IOMUX的具体应用请参考Pinctrl 和 GPIO 使用手册

文档信息

本文作者：Phoenix
本文链接：https://siflower.github.io/2020/09/03/iomux_table/
版权声明：自由转载-非商用-非衍生-保持署名（创意共享3.0许可证）

矽昌通信

Siflower IOMUX Table

Siflower IOMUX Table

1. 介绍

1.1. 适用人员

1.2. 开发环境

2. SF19A2890 fullmask IOMUX Table

3. 如何在shell命令行获取PAD脚的状态

3.1. kernel选择DEBUG_FS配置

3.2. 命令

FAQ

文档信息

Search

Table of Contents