Hello all,
I trying patch file *am335x-boneblack.dts*
(http://git.ti.com/ti-linux-kernel/ti-linux-kernel/blobs/ti-lsk-linux-4.4.y/arch/arm/boot/dts/am335x-boneblack.dts)
in yocto in order to using *pru* on my BBB. However I can't see any change
in */sys/kernel/debug/pinctrl/44e10800.pinmux/pingroups. *Pin groups looks
like (still same):
*root@beaglebone:~# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pingroups
registered pin groups: group: pinmux_clkout2_pinpin 109
(44e109b4.0)group: pinmux_uart0_pinspin 92 (44e10970.0) pin 93
(44e10974.0)group: cpsw_defaultpin 68 (44e10910.0) pin 69
(44e10914.0) pin 70 (44e10918.0) pin 71 (44e1091c.0) pin 72
(44e10920.0) pin 73 (44e10924.0) pin 74 (44e10928.0) pin 75
(44e1092c.0) pin 76 (44e10930.0) pin 77 (44e10934.0) pin 78
(44e10938.0) pin 79 (44e1093c.0) pin 80 (44e10940.0)group:
cpsw_sleeppin 68 (44e10910.0) pin 69 (44e10914.0) pin 70
(44e10918.0) pin 71 (44e1091c.0) pin 72 (44e10920.0) pin 73
(44e10924.0) pin 74 (44e10928.0) pin 75 (44e1092c.0) pin 76
(44e10930.0) pin 77 (44e10934.0) pin 78 (44e10938.0) pin 79
(44e1093c.0) pin 80 (44e10940.0)group: davinci_mdio_defaultpin 82
(44e10948.0) pin 83 (44e1094c.0)group: davinci_mdio_sleeppin 82
(44e10948.0)pin 83 (44e1094c.0)group: pinmux_mmc1_pinspin 88
(44e10960.0)group: pinmux_emmc_pinspin 32 (44e10880.0) pin 33
(44e10884.0) pin 0 (44e10800.0) pin 1 (44e10804.0) pin 2
(44e10808.0) pin 3 (44e1080c.0) pin 4 (44e10810.0) pin 5
(44e10814.0) pin 6 (44e10818.0) pin 7 (44e1081c.0)group:
user_leds_defaultpin 21 (44e10854.0) pin 22 (44e10858.0) pin 23
(44e1085c.0) pin 24 (44e10860.0)group: user_leds_sleeppin 21
(44e10854.0) pin 22 (44e10858.0) pin 23 (44e1085c.0) pin 24
(44e10860.0)group: mcasp0_pinspin 107 (44e109ac.0) pin 103
(44e1099c.0) pin 101 (44e10994.0) pin 100 (44e10990.0) pin 27
(44e1086c.0)group: pinmux_i2c0_pinspin 98 (44e10988.0) pin 99
(44e1098c.0)group: nxp_hdmi_bonelt_pinspin 108 (44e109b0.0) pin 40
(44e108a0.0) pin 41 (44e108a4.0) pin 42 (44e108a8.0) pin 43
(44e108ac.0) pin 44 (44e108b0.0) pin 45 (44e108b4.0) pin 46
(44e108b8.0) pin 47 (44e108bc.0) pin 48 (44e108c0.0) pin 49
(44e108c4.0) pin 50 (44e108c8.0) pin 51 (44e108cc.0) pin 52
(44e108d0.0) pin 53 (44e108d4.0) pin 54 (44e108d8.0) pin 55
(44e108dc.0) pin 56 (44e108e0.0) pin 57 (44e108e4.0) pin 58
(44e108e8.0) pin 59 (44e108ec.0) group: nxp_hdmi_bonelt_off_pinspin 108
(44e109b0.0)group: pinmux_i2c2_pinspin 94 (44e10978.0) pin 95
(44e1097c.0)*
However tree in */sys/devices/platform/ocp/* looks as I expected (reflect
patch):
*root@beaglebone:~# ls
/sys/devices/platform/ocp/40300000.ocmcram
47400000.usb 4804c000.gpio
481d8000.mmc 49a00000.tptc
driver_override
ocp:l4_wkup@44c0000040302000.ocmcram_nocache
48038000.mcasp 48060000.mmc
48200000.interrupt-controller 4a100000.ethernet
modalias of_node44e07000.gpio
48042000.timer 480c8000.mailbox
4830e000.lcdc 4a300000.pruss
ocp:P9_24_pinmux power44e09000.serial
48044000.timer 480ca000.spinlock
48310000.rng 4c000000.emif
ocp:P9_26_pinmux subsystem44e0b000.i2c
48046000.timer 4819c000.i2c
49000000.edma 53100000.sham
ocp:P9_27_pinmux uevent44e35000.wdt
48048000.timer 481ac000.gpio
49800000.tptc 53500000.aes
ocp:P9_30_pinmux44e3e000.rtc
4804a000.timer 481ae000.gpio
49900000.tptc 56000000.sgx
ocp:cape-universal*
My patch is currently following:
*--- ./arch/arm/boot/dts/am33xx.dtsi+++ ./arch/arm/boot/dts/am33xx.dtsi@@
-165,7 +165,7 @@ * for the moment, just use a fake OCP bus entry to
represent * the whole bus hierarchy. */- ocp: ocp {+ ocp
{ compatible = "simple-bus"; #address-cells = <1>;
#size-cells = <1>;--- ./arch/arm/boot/dts/am335x-boneblack.dts+++
./arch/arm/boot/dts/am335x-boneblack.dts@@ -86,6 +86,83 @@
AM33XX_IOPAD(0x86c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a11.GPIO1_27
*/ >; };+ + P9_24_default_pin: pinmux_P9_24_default_pin {
pinctrl-single,pins = <+ AM33XX_IOPAD(0x0984, PIN_OUTPUT_PULLUP |
SLEWCTRL_FAST | MUX_MODE5) >; };++ P9_26_default_pin:
pinmux_P9_26_default_pin { pinctrl-single,pins = <+
AM33XX_IOPAD(0x0980, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE5) >;
};++ P9_27_default_pin: pinmux_P9_27_default_pin { pinctrl-single,pins =
<+ AM33XX_IOPAD(0x09a4, PIN_OUTPUT_PULLUP | SLEWCTRL_FAST |
MUX_MODE5) >; };++ P9_30_default_pin: pinmux_P9_30_default_pin {
pinctrl-single,pins = <+ AM33XX_IOPAD(0x0998, PIN_OUTPUT_PULLUP |
SLEWCTRL_FAST | MUX_MODE5) >; };+};++&ocp {+ P9_24_pinmux {+
compatible = "bone-pinmux-helper";+ status = "okay";+
pinctrl-names = "default";+ pinctrl-0 = <&P9_24_default_pin>;+
};++ P9_26_pinmux {+ compatible = "bone-pinmux-helper";+
status = "okay";+ pinctrl-names = "default";+ pinctrl-0 =
<&P9_26_default_pin>;+ };++ P9_27_pinmux {+ compatible =
"bone-pinmux-helper";+ status = "okay";+ pinctrl-names =
"default";+ pinctrl-0 = <&P9_27_default_pin>;+ };++
P9_30_pinmux {+ compatible = "bone-pinmux-helper";+ status =
"okay";+ pinctrl-names = "default";+ pinctrl-0 =
<&P9_30_default_pin>;+ };+ + cape-universal {+ compatible =
"gpio-of-helper";+ status = "okay";+ pinctrl-names =
"default";+ pinctrl-0 = <>;++ P9_24 {+ gpio-name =
"P9_24";+ gpio = <&gpio0 15 0>;+ output;+
dir-changeable;+ };++ P9_26 {+ gpio-name =
"P9_26";+ gpio = <&gpio0 14 0>;+ input;+
dir-changeable;+ };++ P9_27 {+ gpio-name =
"P9_27";+ gpio = <&gpio3 19 0>;+ output;+
dir-changeable;+ };++ P9_30 {+ gpio-name =
"P9_30";+ gpio = <&gpio3 16 0>;+ output;+
dir-changeable;+ };+ }; }; &lcdc {@@ -152,6 +229,10 @@
status = "okay"; }; +&pruss {+ status = "okay";+};+ / {
clk_mcasp0_fixed: clk_mcasp0_fixed { #clock-cells = <0>;*
Unfortunately I don't know what I doing wrong. Please help :-)
Thanks
Adrian
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