I need to modify the default configuration of pinmuxing on the BBB. To do so i'm trying to modify the am335x-boneblack.dts before recompiling the kernel. But that file is very awkward. I've only found information about overlay, but i need this to be default not overlay.
I've tried to write my one am335x-boneblack.dts, deleted every things related to HDMI, modified the include to am335x-bone-common-no-capemgr.dtsi : /* * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ /dts-v1/; #include "am33xx.dtsi" #include "am335x-bone-common-no-capemgr.dtsi" / { model = "TI AM335x BeagleBone Black"; compatible = "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx"; }; &ldo3_reg { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-always-on; }; &mmc1 { vmmc-supply = <&vmmcsd_fixed>; }; &mmc2 { vmmc-supply = <&vmmcsd_fixed>; pinctrl-names = "default"; pinctrl-0 = <&emmc_pins>; bus-width = <8>; status = "okay"; }; &am33xx_pinmux { tor_output_pins: tor_output_pins { pinctrl-single,pins = < 0x078 0x07 /* P9_12 OUTPUT | MODE7 | PULLDOWN */ 0x048 0x07 /* P9_14 OUTPUT | MODE7 | PULLDOWN */ 0x040 0x07 /* P9_15 OUTPUT | MODE7 | PULLDOWN */ 0x04c 0x07 /* P9_16 OUTPUT | MODE7 | PULLDOWN */ 0x15c 0x07 /* P9_17 OUTPUT | MODE7 | PULLDOWN */ 0x158 0x07 /* P9_18 OUTPUT | MODE7 | PULLDOWN */ 0x044 0x07 /* P9_23 OUTPUT | MODE7 | PULLDOWN */ 0x1ac 0x07 /* P9_25 OUTPUT | MODE7 | PULLDOWN */ >; }; tor_input: tor_input { pinctrl-single,pins = < 0x030 0x27 /* P8_12 INPUT | MODE7 | PULLDOWN */ 0x024 0x27 /* P8_13 INPUT | MODE7 | PULLDOWN */ 0x028 0x27 /* P8_14 INPUT | MODE7 | PULLDOWN */ 0x03c 0x27 /* P8_15 INPUT | MODE7 | PULLDOWN */ 0x038 0x27 /* P8_16 INPUT | MODE7 | PULLDOWN */ 0x02c 0x27 /* P8_17 INPUT | MODE7 | PULLDOWN */ 0x08c 0x27 /* P8_18 INPUT | MODE7 | PULLDOWN */ 0x020 0x27 /* P8_19 INPUT | MODE7 | PULLDOWN */ >; }; }; Booting from uboot using TFTP : tftpboot 0x80F80000 am335x-bone-custom.dtb tftpboot 0x80007FC0 uImage-BBB Then looking at pins configuration : root@arm:~# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins|grep 95c pin 87 (44e1095c.0) 00000062 pinctrl-single Should output : pin 87 (44e1095c.0) 00000007 pinctrl-single Why changes didn't take effect ? Did i missed something ? Thank you for your time. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
