| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | * Freescale IMX35 IOMUX Controller |
| 2 | |
| 3 | Please refer to fsl,imx-pinctrl.txt in this directory for common binding part |
| 4 | and usage. |
| 5 | |
| 6 | Required properties: |
| 7 | - compatible: "fsl,imx35-iomuxc" |
| 8 | - fsl,pins: two integers array, represents a group of pins mux and config |
| 9 | setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, PIN_FUNC_ID is a |
| 10 | pin working on a specific function, CONFIG is the pad setting value like |
| 11 | pull-up for this pin. Please refer to imx35 datasheet for the valid pad |
| 12 | config settings. |
| 13 | |
| 14 | CONFIG bits definition: |
| 15 | PAD_CTL_DRIVE_VOLAGAGE_18 (1 << 13) |
| 16 | PAD_CTL_DRIVE_VOLAGAGE_33 (0 << 13) |
| 17 | PAD_CTL_HYS (1 << 8) |
| 18 | PAD_CTL_PKE (1 << 7) |
| 19 | PAD_CTL_PUE (1 << 6) |
| 20 | PAD_CTL_PUS_100K_DOWN (0 << 4) |
| 21 | PAD_CTL_PUS_47K_UP (1 << 4) |
| 22 | PAD_CTL_PUS_100K_UP (2 << 4) |
| 23 | PAD_CTL_PUS_22K_UP (3 << 4) |
| 24 | PAD_CTL_ODE_CMOS (0 << 3) |
| 25 | PAD_CTL_ODE_OPENDRAIN (1 << 3) |
| 26 | PAD_CTL_DSE_NOMINAL (0 << 1) |
| 27 | PAD_CTL_DSE_HIGH (1 << 1) |
| 28 | PAD_CTL_DSE_MAX (2 << 1) |
| 29 | PAD_CTL_SRE_FAST (1 << 0) |
| 30 | PAD_CTL_SRE_SLOW (0 << 0) |
| 31 | |
| 32 | Refer to imx35-pinfunc.h in device tree source folder for all available |
| 33 | imx35 PIN_FUNC_ID. |