Added main overaly for CBB-Serial BeagleBone cape, as well as separate overlays to mux the AM335x UART2 and UART4 RTS and CTS pins to the 3.8 branch.
Signed-off-by: Alexander Hiam <hiamalexan...@gmail.com> --- firmware/Makefile | 6 ++ firmware/capes/BB-UART2-RTSCTS-00A0.dts | 57 +++++++++++++++++ firmware/capes/BB-UART4-RTSCTS-00A0.dts | 57 +++++++++++++++++ firmware/capes/cape-CBB-Serial-r01.dts | 106 ++++++++++++++++++++++++++++++++ 4 files changed, 226 insertions(+) create mode 100644 firmware/capes/BB-UART2-RTSCTS-00A0.dts create mode 100644 firmware/capes/BB-UART4-RTSCTS-00A0.dts create mode 100644 firmware/capes/cape-CBB-Serial-r01.dts diff --git a/firmware/Makefile b/firmware/Makefile index e45d10b..4b59f44 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -221,6 +221,12 @@ fw-shipped-$(CONFIG_CAPE_BEAGLEBONE) += \ # the Tester cape (tester-side) fw-shipped-$(CONFIG_CAPE_BEAGLEBONE) += cape-bone-tester-00A0.dtbo +# the CBB-Serial cape (tester-side) +fw-shipped-$(CONFIG_CAPE_BEAGLEBONE) += \ + cape-CBB-Serial-r01.dtbo \ + BB-UART2-RTSCTS-00A0.dtbo \ + BB-UART4-RTSCTS-00A0.dtbo + # the virtual peripheral capes for the UARTs # UART3 is not routed to the connectors, no cape for it fw-shipped-$(CONFIG_CAPE_BEAGLEBONE) += \ diff --git a/firmware/capes/BB-UART2-RTSCTS-00A0.dts b/firmware/capes/BB-UART2-RTSCTS-00A0.dts new file mode 100644 index 0000000..bef5fff --- /dev/null +++ b/firmware/capes/BB-UART2-RTSCTS-00A0.dts @@ -0,0 +1,57 @@ +/* BB-UART2-RTSCTS-00A0.dts + * Written by Alexander Hiam <hiamalexan...@gmail.com> + * for Logic Supply - http://logicsupply.com + * Jan 28, 2014 + * + * This overlay enables RTS/CTS flow control for UART2. + * HDMI must be disabled before enabling this overlay, see: + * http://www.logicsupply.com/blog/2013/07/18/disabling-the-beaglebone-black-hdmi-cape/ + * + * Copyright (c) 2014 - Logic Supply (http://logicsupply.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/; +/plugin/; + +/{ + compatible = "ti,beaglebone", "ti,beaglebone-black"; + + part-number = "BB-UART2-RTSCTS"; + version = "00A0"; + + exclusive-use = + "P8.38", /* uart2 rts */ + "P8.37"; /* uart2 cts */ + + fragment@0 { + /* Sets pinmux for flow control pins. */ + target = <&am33xx_pinmux>; + __overlay__ { + u2_rtscts_pins: pinmux_u2_rtscts_pins { + pinctrl-single,pins = < + 0x0c4 0x0e /* lcd_data9 - pullup | mode 6 (uart2_rtsn) */ + 0x0c0 0x36 /* lcd_data8 - rx enable | pullup | mode 6 (uart2_ctsn) */ + >; + }; + }; + }; + + fragment@1 { + /* Enable pinmux-helper driver for setting mux configuration. */ + target = <&ocp>; /* On-Chip Peripherals */ + __overlay__ { + uart2-rtscts-pinmux { + compatible = "bone-pinmux-helper"; /* Use the pinmux helper */ + status="okay"; + /* Define custom names for indexes in pinctrl array: */ + pinctrl-names = "default"; + /* Set the elements of the pinctrl array to the pinmux overlays + defined above: */ + pinctrl-0 = <&u2_rtscts_pins>; + }; + }; + }; +}; diff --git a/firmware/capes/BB-UART4-RTSCTS-00A0.dts b/firmware/capes/BB-UART4-RTSCTS-00A0.dts new file mode 100644 index 0000000..a8f8e98 --- /dev/null +++ b/firmware/capes/BB-UART4-RTSCTS-00A0.dts @@ -0,0 +1,57 @@ +/* BB-UART4-RTSCTS-00A0.dts + * Written by Alexander Hiam <hiamalexan...@gmail.com> + * for Logic Supply - http://logicsupply.com + * Jan 28, 2014 + * + * This overlay enables RTS/CTS flow control for UART4. + * HDMI must be disabled before enabling this overlay, see: + * http://www.logicsupply.com/blog/2013/07/18/disabling-the-beaglebone-black-hdmi-cape/ + * + * Copyright (c) 2014 - Logic Supply (http://logicsupply.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/; +/plugin/; + +/{ + compatible = "ti,beaglebone", "ti,beaglebone-black"; + + part-number = "BB-UART4-RTSCTS"; + version = "00A0"; + + exclusive-use = + "P8.33", /* uart4 rts */ + "P8.35"; /* uart4 cts */ + + fragment@0 { + /* Sets pinmux for flow control pins. */ + target = <&am33xx_pinmux>; + __overlay__ { + u4_rtscts_pins: pinmux_u4_rtscts_pins { + pinctrl-single,pins = < + 0x0d4 0x0e /* lcd_data13 - pullup | mode 6 (uart4_rtsn) */ + 0x0d0 0x36 /* lcd_data12 - rx enable | pullup | mode 6 (uart4_ctsn) */ + >; + }; + }; + }; + + fragment@1 { + /* Enable pinmux-helper driver for setting mux configuration. */ + target = <&ocp>; /* On-Chip Peripherals */ + __overlay__ { + uart4-rtscts-pinmux { + compatible = "bone-pinmux-helper"; /* Use the pinmux helper */ + status="okay"; + /* Define custom names for indexes in pinctrl array: */ + pinctrl-names = "default"; + /* Set the elements of the pinctrl array to the pinmux overlays + defined above: */ + pinctrl-0 = <&u4_rtscts_pins>; + }; + }; + }; +}; diff --git a/firmware/capes/cape-CBB-Serial-r01.dts b/firmware/capes/cape-CBB-Serial-r01.dts new file mode 100644 index 0000000..0309bd2 --- /dev/null +++ b/firmware/capes/cape-CBB-Serial-r01.dts @@ -0,0 +1,106 @@ +/* cape-CBB-Serial-r01.dts + * Written by Alexander Hiam <hiamalexan...@gmail.com> + * for Logic Supply - http://logicsupply.com + * Jan 28, 2014 + * + * This is the Device Tree overlay for the CBB-Serial BeagleBone and + * BeagleBone Black cape. It will enable the UART2, UART4 and DCAN1 + * interfaces, as well as mux GPIO1_16 for userspace control for + * using software control of the RS485 receiver/driver enable. + * + * Note: the BeagleBone Black has GPIO1_16 tied to GPIO2_0 (which + * is not exposed on the header), so this overlay muxes and controls + * both pins. + * + * Copyright (c) 2014 - Logic Supply (http://logicsupply.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/; +/plugin/; + +/{ + compatible = "ti,beaglebone", "ti,beaglebone-black"; + + part-number = "cape-CBB-Serial"; + version = "r01"; + + /* state the resources this cape uses */ + exclusive-use = + /* the pin header uses */ + "P9.15", /* GPIO1_16 */ + + "P9.21", /* uart2_txd */ + "P9.22", /* uart2_rxd */ + + "P9.13", /* uart4_txd */ + "P9.11", /* uart4_rxd */ + + "P9.24", /* dcan1_rx */ + "P9.26", /* dcan1_tx */ + + /* the hardware IP uses */ + "gpio1_16", + "gpio2_0", + "uart2", + "uart4", + "dcan1"; + + fragment@0 { + target = <&am33xx_pinmux>; + __overlay__ { + + cbb_serial_uart2_pins: pinmux_cbb_serial_uart2_pins { + pinctrl-single,pins = < + 0x150 0x21 /* spi0_sclk - RX_ENABLED | MODE6 (UART2 RX) */ + 0x154 0x01 /* spi0_d0 - MODE6 (UART2 TX) */ + >; + }; + + cbb_serial_uart4_pins: pinmux_cbb_serial_uart4_pins { + pinctrl-single,pins = < + 0x070 0x26 /* gpmc_wait0 - RX_ENABLED | MODE6 (UART4 RX) */ + 0x074 0x06 /* gpmc_wpn - MODE6 (UART4 TX) */ + 0x040 0x2f /* gpmc_a0 - pull disabled | MODE7 (GPIO1_16) */ + 0x088 0x2f /* gpmc_csn3 - pull disabled | MODE7 (GPIO2_0) */ + >; + }; + + cbb_serial_dcan1_pins: pinmux_cbb_serial_dcan1_pins { + pinctrl-single,pins = < + 0x180 0x12 /* uart1_rxd - PULLUP | MODE2 (DCAN TX) */ + 0x184 0x32 /* uart1_txd - RX_ENABLED | PULLUP | MODE2 (DCAN1 RX) */ + >; + }; + }; + }; + + fragment@1 { + target = <&uart3>; + __overlay__ { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&cbb_serial_uart2_pins>; + }; + }; + + fragment@2 { + target = <&uart5>; + __overlay__ { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&cbb_serial_uart4_pins>; + }; + }; + + fragment@3 { + target = <&dcan1>; + __overlay__ { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&cbb_serial_dcan1_pins>; + }; + }; +}; -- 1.8.1.2 -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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