Overview
The aim of this document is to explain how to setup pins of SP7350 in device-tree source. SP7350 has 106 general purpose IO (GPIO) pins which are multiplexed with other special functions, like eMMC device, SPI-NOR flash, SPI-NAND flash, Ethernet PHY (RGMII or RMII interface), UART, I2C pins, and etc.
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SP7350 has 106 GPIO pins. ID is from 0 to 105. Name is in form of GPIO(id), like GPIO0, GPIO1, GPIO2, GPIO99, GPIO105, and etc. There are two kinds of GPIO pins. One is 1.8V GPIO pins, and the other is 1.8V/3.0V Dual Voltage IO (DVIO) pins. Beside configure 1.8V or 3.0V power to power supply of a DVIO group in your circuit boards (hardware), you need to setup MS control in device-tree source. Refer to groups of GPIO and DVIO in appendix GPIO Table below in details.
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| Code Block | ||
|---|---|---|
| ||
uart7_pins: pinmux_uart7-pins {
function = "UART7";
groups = "UART7";
drive-strength-microamp = <SPPCTRL_GPIO_DRV_IOH_6600_IOL_6600UA>;
}; |
Appendix
GPIO Table
GPIO # | Power domain | Pin type | Pin name | Power-supply | Power domain |
0 - 19 | Main | 1.8V GPIO | G_MX0 - G_MX19 | VDDPST18_GPIO | Main |
20 | 1.8V/3.0V DVIO | G_MX20 | VDDPST3018_DVIO_2 | ||
21 - 27 | G_MX21 - G_MX27 | VDDPST3018_DVIO_1 | |||
28 - 37 | G_MX28 - G_MX37 | VDDPST3018_DVIO_2 | |||
38 - 43 | G_MX38 - G_MX43 | AVDDIO_3018_SD | |||
44 - 49 | G_MX44 - G_MX49 | AVDDIO_3018_SDIO | |||
50 - 59 | CM4 (AO) | AO_MX0 - AO_MX9 | VDDPST3018_DVIO_AO_1 | CM4 (AO) | |
60 - 69 | AO_MX10 - AO_MX19 | VDDPST3018_DVIO_AO_2 | |||
70 - 79 | AO_MX20 - AO_MX29 | VDDPST3018_DVIO_AO_3 | |||
80 - 98 | 1.8V GPIO | AO_MX30 - AO_MX48 | VDDPST18_GPIO_AO | ||
99 - 105 | IV_MX0 - IV_MX6 |
Driving-strength Table of GPIO
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# | Source current (mA) | for GPIOSink current (mA) | MACRO | |||||||
Min. | Typ. | Max. | Min Value.Typical Value | Typ. | Max Value.MACRO | |||||
0 | 0.8 | 1.1 | 1.5 | 0.7 | 1.1 | 1.6 | SPPCTRL_GPIO_DRV_IOH_1100_IOL_1100UA | |||
1 | 1.1 | 1.6 | 2.2 | 1.1 | 1.7 | 2.3 | SPPCTRL_GPIO_DRV_IOH_1600_IOL_1700UA | |||
2 | 2.3 | 3.3 | 4.3 | 2.1 | 3.3 | 4.7 | SPPCTRL_GPIO_DRV_IOH_3300_IOL_3300UA | |||
3 | 3.4 | 4.9 | 6.5 | 3.2 | 5.0 | 7.0 | SPPCTRL_GPIO_DRV_IOH_4900_IOL_5000UA | |||
4 | 4.5 | 6.6 | 8.6 | SPPCTRL_4.2 | 6.6 | 9.3 | SPPCTRL_GPIO_DRV_IOH_6600_IOL_6600UA | |||
5 | 5.7 | 8.2 | 10.8 | 5.3 | 8.3 | 11.7 | SPPCTRL_GPIO_DRV_IOH_8200_IOL_8300UA | |||
6 | 6.8 | 9.9 | 13.0 | 6.3 | 9.9 | 13.9 | SPPCTRL_GPIO_DRV_IOH_9900_IOL_9900UA | |||
7 | 7.9 | 11.5 | 15.1 | 7.4 | 11.6 | 16.2 | SPPCTRL_GPIO_DRV_IOH_11500_IOL_11600UA | |||
8 | 9.0 | 13.1 | 17.2 | 8.4 | 13.2 | 18.5 | SPPCTRL_GPIO_DRV_IOH_13100_IOL_13200UA | |||
9 | 10.2 | 14.8 | 19.4 | 9.4 | 14.8 | 20.8 | SPPCTRL_GPIO_DRV_IOH_14800_IOL_14800UA | |||
10 | 11.3 | 16.4 | 21.6 | 10.5 | 16.5 | 23.1 | SPPCTRL_GPIO_DRV_IOH_16400_IOL_16500UA | |||
11 | 12.4 | 18.1 | 23.7 | 11.5 | 18.1 | 25.4 | SPPCTRL_GPIO_DRV_IOH_18100_IOL_18100UA | |||
12 | 13.5 | 19.6 | 25.8SPPCTRL_GPIO | 12.6 | 19.7 | 27.6 | SPPCTRL_GPIO_DRV_IOH_19600_IOL_19700UA | |||
13 | 14.7 | 21.3 | 28.0 | 13.6 | 21.4 | 29.9 | SPPCTRL_GPIO_DRV_IOH_21300_IOL_21400UA | |||
14 | 15.8 | 22.9 | 30.1 | 14.6 | 23.0 | 32.1 | SPPCTRL_GPIO_DRV_IOH_22900_IOL_23000UA | |||
15 | 16.9 | 24.6 | 32.3 | 15.7 | 24.6 | 34.4 | SPPCTRL_GPIO_DRV_IOH_24600_IOL_24600UA | |||
Driving-strength Table of DVIO
# | Source current (mA) | Sink current (mA) | ||||
Min Value
Typical Value
MACRO | |||
Min. |
Typ. |
Max. |
SPPCTRL_GPIO_DRV_IOH_1100_IOL_1100UA
1.1
1.7
2.3
SPPCTRL_GPIO_DRV_IOH_1600_IOL_1700UA
2.1
3.3
4.7
SPPCTRL_GPIO_DRV_IOH_3300_IOL_3300UA
3.2
5.0
7.0
SPPCTRL_GPIO_DRV_IOH_4900_IOL_5000UA
4.2
6.6
9.3
SPPCTRL_GPIO_DRV_IOH_6600_IOL_6600UA
5.3
8.3
11.7
SPPCTRL_GPIO_DRV_IOH_8200_IOL_8300UA
6.3
9.9
13.9
SPPCTRL_GPIO_DRV_IOH_9900_IOL_9900UA
7.4
11.6
16.2
SPPCTRL_GPIO_DRV_IOH_11500_IOL_11600UA
8.4
13.2
18.5
SPPCTRL_GPIO_DRV_IOH_13100_IOL_13200UA
9.4
14.8
20.8
SPPCTRL_GPIO_DRV_IOH_14800_IOL_14800UA
10.5
16.5
23.1
SPPCTRL_GPIO_DRV_IOH_16400_IOL_16500UA
11.5
18.1
25.4
SPPCTRL_GPIO_DRV_IOH_18100_IOL_18100UA
12.6
19.7
27.6
SPPCTRL_GPIO_DRV_IOH_19600_IOL_19700UA
13.6
21.4
29.9
SPPCTRL_GPIO_DRV_IOH_21300_IOL_21400UA
14.6
23.0
32.1
SPPCTRL_GPIO_DRV_IOH_22900_IOL_23000UA
15.7
24.6
34.4
SPPCTRL_GPIO_DRV_IOH_24600_IOL_24600UA
Source current （mA）for DVIO
Min Value
Typical Value
Max Value
MACRO
1.9
5.1
9.9
SPPCTRL_DVIO_DRV_IOH_5100_IOL_6200UA
2.8
7.6
14.8
SPPCTRL_DVIO_DRV_IOH_7600_IOL_9300UA
3.7
10.1
19.8
SPPCTRL_DVIO_DRV_IOH_10100_IOL_12500UA
4.6
12.6
24.7
SPPCTRL_DVIO_DRV_IOH_12600_IOL_15600UA
5.6
15.2
29.7
SPPCTRL_DVIO_DRV_IOH_15200_IOL_18700UA
6.5
17.7
34.6
SPPCTRL_DVIO_DRV_IOH_17700_IOL_21800UA
7.4
20.2
39.5
SPPCTRL_DVIO_DRV_IOH_20200_IOL_24900UA
8.3
22.7
44.3
SPPCTRL_DVIO_DRV_IOH_22700_IOL_27900UA
9.3
25.2
49.3
SPPCTRL_DVIO_DRV_IOH_25200_IOL_31000UA
10.2
27.7
54.2
SPPCTRL_DVIO_DRV_IOH_27700_IOL_34100UA
11.1
30.3
59.1
SPPCTRL_DVIO_DRV_IOH_30300_IOL_37200UA
12.0
32.8
64.0
SPPCTRL_DVIO_DRV_IOH_32800_IOL_40300UA
13.0
35.3
68.9
SPPCTRL_DVIO_DRV_IOH_35300_IOL_43400UA
13.9
37.8
73.7
SPPCTRL_DVIO_DRV_IOH_37800_IOL_46400UA
14.8
40.3
78.6
SPPCTRL_DVIO_DRV_IOH_40300_IOL_49500UA
15.7
42.7
83.4
SPPCTRL_DVIO_DRV_IOH_42700_IOL_52600UA
Sink current （mA）for DVIO
Min Value
Typical Value
Max Value
Min. | Typ. | Max. | |||||
0 | 1.9 | 5.1 | 9.9 | 4.0 | 6.2 | 8.6 | SPPCTRL_DVIO_DRV_IOH_5100_IOL_6200UA |
1 | 2.8 | 7.6 | 14.8 | 6.0 | 9.3 | 12.9 | SPPCTRL_DVIO_DRV_IOH_7600_IOL_9300UA |
2 | 3.7 | 10.1 | 19.8 | 8.1 | 12.5 | 17.1 | SPPCTRL_DVIO_DRV_IOH_10100_IOL_12500UA |
3 | 4.6 | 12.6 | 24.7 | 10.1 | 15.6 | 21.4 | SPPCTRL_DVIO_DRV_IOH_12600_IOL_15600UA |
4 | 5.6 | 15.2 | 29.7 | 12.1 | 18.7 | 25.7 | SPPCTRL_DVIO_DRV_IOH_15200_IOL_18700UA |
5 | 6.5 | 17.7 | 34.6 | 14.1 | 21.8 | 29.9 | SPPCTRL_DVIO_DRV_IOH_17700_IOL_21800UA |
6 | 7.4 | 20.2 | 39.5 | 16.1 | 24.9 | 34.2 | SPPCTRL_DVIO_DRV_IOH_20200_ |
IOL_24900UA | |||||||
7 | 8.3 | 22.7 | 44.3 | 18.1 | 27.9 | 38.4 | SPPCTRL_DVIO_DRV_IOH_22700_IOL_27900UA |
8 | 9.3 | 25.2 | 49.3 | 20.1 | 31.0 | 42.7 | SPPCTRL_DVIO_DRV_IOH_25200_IOL_31000UA |
9 | 10.2 | 27.7 | 54.2 | 22.1 | 34.1 | 46.9 | SPPCTRL_DVIO_DRV_IOH_27700_IOL_34100UA |
10 | 11.1 | 30.3 | 59.1 | 24.1 | 37.2 | 51.1 | SPPCTRL_DVIO_DRV_IOH_30300_IOL_37200UA |
11 | 12.0 | 32.8 | 64.0 | 26.1 | 40.3 | 55.3 | SPPCTRL_DVIO_DRV_IOH_32800_IOL_40300UA |
12 | 13.0 | 35.3 | 68.9 | 28.1 | 43.4 | 59.5 | SPPCTRL_DVIO_DRV_IOH_35300_IOL_43400UA |
13 | 13.9 | 37.8 | 73.7 | 30.1 | 46.4 | 63.8 | SPPCTRL_DVIO_DRV_IOH_37800_IOL_46400UA |
14 | 14.8 | 40.3 | 78.6 | 32.1 | 49.5 | 67.9 | SPPCTRL_DVIO_DRV_IOH_40300_IOL_49500UA |
15 | 15.7 | 42.7 | 83.4 | 34.1 | 52.6 | 72.1 | SPPCTRL_DVIO_DRV_IOH_42700_IOL_52600UA |
Function-group Table
function name | group name | binding pins |
SPI_FLASH | SPI_FLASH | 21, 22, 23, 24, 25, 26 |
EMMC | EMMC | 20, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 |
SPI_NAND | SPI_NAND_X1 | 30, 31, 32, 33, 34, 35 |
SPI_NAND_X2 | 21, 22, 23, 24, 25, 26 | |
SD_CARD | SD_CARD | 38, 39, 40, 41, 42, 43 |
SDIO | SDIO | 44, 45, 46, 47, 48, 49 |
PARA_NAND | PARA_NAND | 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 |
USB_OTG | USB_OTG | 18, 19 |
GMAC | GMAC_RGMII | 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 |
GMAC_RMII | 4, 5, 6, 7, 8, 9, 10, 11, 12 | |
PWM0 | PWM0_X1 | 78 |
PWM0_X2 | 58 | |
PWM1 | PWM1_X1 | 79 |
PWM1_X2 | 59 | |
PWM2 | PWM2_X1 | 60 |
PWM2_X2 | 92 | |
PWM3 | PWM3_X1 | 61 |
PWM3_X2 | 93 | |
UART0 | UART0_X1 | 50, 51 |
UART0_X2 | 68, 69 | |
UART1 | UART1_X1 | 52, 53 |
UART1_X2 | 64, 65 | |
UART1_FC | UART1_FC_X1 | 54, 55 |
UART1_FC_X2 | 66, 67 | |
UART2 | UART2_X1 | 56, 57 |
UART2_X2 | 76, 77 | |
UART2_FC | UART2_FC_X1 | 58, 59 |
UART2_FC_X2 | 78, 79 | |
UART3 | UART3_X1 | 62, 63 |
UART3_X2 | 7, 8 | |
UADBG | UADBG | 13, 14 |
UART6 | UART6_X1 | 80, 81 |
UART6_X2 | 48, 49 | |
UART7 | UART7 | 82, 83 |
I2C_COMBO0 | I2C_COMBO0_X1 | 68, 69 |
I2C_COMBO0_X2 | 54, 55 | |
I2C_COMBO1 | I2C_COMBO1 | 70, 71 |
I2C_COMBO2 | I2C_COMBO2_X1 | 76, 77 |
I2C_COMBO2_X2 | 56, 57 | |
I2C_COMBO3 | I2C_COMBO3 | 88, 89 |
I2C_COMBO4 | I2C_COMBO4 | 90, 91 |
I2C_COMBO5 | I2C_COMBO5 | 92, 93 |
I2C_COMBO6 | I2C_COMBO6_X1 | 84, 85 |
I2C_COMBO6_X2 | 1, 2 | |
I2C_COMBO7 | I2C_COMBO7_X1 | 86, 87 |
I2C_COMBO7_X2 | 3, 4 | |
I2C_COMBO8 | I2C_COMBO8_X1 | 95, 96 |
I2C_COMBO8_X2 | 9, 10 | |
I2C_COMBO9 | I2C_COMBO9_X1 | 97, 98 |
I2C_COMBO9_X2 | 11, 12 | |
SPI_MASTER0 | SPI_MASTER0_X1 | 64, 65, 66, 67 |
SPI_MASTER0_X2 | 9, 10, 11, 12 | |
SPI_MASTER1 | SPI_MASTER1_X1 | 80, 81, 82, 83 |
SPI_MASTER1_X2 | 14, 15, 16, 17 | |
SPI_MASTER2 | SPI_MASTER2 | 88, 89, 90, 91 |
SPI_MASTER3 | SPI_MASTER3_X1 | 44, 45, 46, 47 |
SPI_MASTER3_X2 | 52, 53, 54, 55 | |
SPI_MASTER4 | SPI_MASTER4 | 72, 73, 74, 75 |
SPI_SLAVE0 | SPI_SLAVE0_X1 | 94, 95, 96, 97 |
SPI_SLAVE0_X2 | 72, 73, 74, 75 | |
AUD_TDMTX_XCK | AUD_TDMTX_XCK | 93 |
AUD_DAC_XCK1 | AUD_DAC_XCK1 | 71 |
AUD_DAC_XCK | AUD_DAC_XCK | 83 |
AUD_AU2_DATA0 | AUD_AU2_DATA0 | 82 |
AUD_AU1_DATA0 | AUD_AU1_DATA0 | 58 |
AUD_AU2_CK | AUD_AU2_CK | 80, 81 |
AUD_AU1_CK | AUD_AU1_CK | 56, 57 |
AUD_AU_ADC_DATA0 | AUD_AU_ADC_DATA0_X1 | 94, 95, 96, 97 |
AUD_AU_ADC_DATA0_X2 | 72, 73, 74, 75 | |
AUD_ADC2_DATA0 | AUD_ADC2_DATA0 | 82 |
AUD_ADC1_DATA0 | AUD_ADC1_DATA0 | 58 |
AUD_TDM | AUD_TDM | 94, 95, 96, 97 |
SPDIF_IN | SPDIF_IN_X1 | 91 |
SPDIF_IN_X2 | 53 | |
SPDIF_IN_X3 | 54 | |
SPDIF_IN_X4 | 55 | |
SPDIF_IN_X5 | 62 | |
SPDIF_IN_X6 | 52 | |
SPDIF_OUT | SPDIF_OUT_X1 | 91 |
SPDIF_OUT_X2 | 53 | |
SPDIF_OUT_X3 | 54 | |
SPDIF_OUT_X4 | 55 | |
SPDIF_OUT_X5 | 62 | |
SPDIF_OUT_X6 | 52 | |
INT0 | INT0_X1 | 1 |
INT0_X2 | 2 | |
INT0_X3 | 3 | |
INT0_X4 | 4 | |
INT0_X5 | 5 | |
INT0_X6 | 6 | |
INT0_X7 | 13 | |
INT0_X8 | 14 | |
INT0_X9 | 15 | |
INT1 | INT1_X1 | 1 |
INT1_X2 | 2 | |
INT1_X3 | 3 | |
INT1_X4 | 4 | |
INT1_X5 | 5 | |
INT1_X6 | 6 | |
INT1_X7 | 13 | |
INT1_X8 | 14 | |
INT1_X9 | 15 | |
INT2 | INT2_X1 | 5 |
INT2_X2 | 6 | |
INT2_X3 | 7 | |
INT2_X4 | 8 | |
INT2_X5 | 9 | |
INT2_X6 | 10 | |
INT2_X7 | 11 | |
INT2_X8 | 16 | |
INT2_X9 | 17 | |
INT3 | INT3_X1 | 5 |
INT3_X2 | 6 | |
INT3_X3 | 7 | |
INT3_X4 | 8 | |
INT3_X5 | 9 | |
INT3_X6 | 10 | |
INT3_X7 | 11 | |
INT3_X8 | 16 | |
INT3_X9 | 17 | |
INT4 | INT4_X1 | 7 |
INT4_X2 | 8 | |
INT4_X3 | 9 | |
INT4_X4 | 10 | |
INT4_X5 | 11 | |
INT4_X6 | 12 | |
INT4_X7 | 13 | |
INT4_X8 | 18 | |
INT4_X9 | 19 | |
INT5 | INT5_X1 | 7 |
INT5_X2 | 8 | |
INT5_X3 | 9 | |
INT5_X4 | 10 | |
INT5_X5 | 11 | |
INT5_X6 | 12 | |
INT5_X7 | 13 | |
INT5_X8 | 18 | |
INT5_X9 | 19 | |
INT6 | INT6_X1 | 9 |
INT6_X2 | 10 | |
INT6_X3 | 11 | |
INT6_X4 | 12 | |
INT6_X5 | 13 | |
INT6_X6 | 14 | |
INT6_X7 | 15 | |
INT6_X8 | 16 | |
INT6_X9 | 17 | |
INT6_X10 | 18 | |
INT6_X11 | 19 | |
INT7 | INT7_X1 | 9 |
INT7_X2 | 10 | |
INT7_X3 | 11 | |
INT7_X4 | 12 | |
INT7_X5 | 13 | |
INT7_X6 | 14 | |
INT7_X7 | 15 | |
INT7_X8 | 16 | |
INT7_X9 | 17 | |
INT7_X10 | 18 | |
INT7_X11 | 19 | |
GPIO_AO_INT0 | GPIO_AO_INT0_X1 | 52, 53, 54, 55, 56, 57, 58, 59 |
GPIO_AO_INT0_X2 | 68, 69, 70, 71, 72, 73, 74, 75 | |
GPIO_AO_INT1 | GPIO_AO_INT1_X1 | 60, 61, 62, 63, 64, 65, 66, 67 |
GPIO_AO_INT1_X2 | 76, 77, 78, 79, 80, 81, 82, 83 | |
GPIO_AO_INT2 | GPIO_AO_INT2_X1 | 68, 69, 70, 71, 72, 73, 74, 75 |
GPIO_AO_INT2_X2 | 84, 85, 86, 87, 88, 89, 90, 91 | |
GPIO_AO_INT3 | GPIO_AO_INT3_X1 | 76, 77, 78, 79, 80, 81, 82, 83 |
GPIO_AO_INT3_X2 | 91, 92, 93, 94, 95, 96, 97, 98 |