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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1b359d32f2
The default serial driver for omap2plus is the 8250_omap driver. Unfortunately, this driver does not yet appear to have fully functional DMA on OMAP3630/DM3730 which causes some timeouts and frame errors. This patch removes the DMA entry from the device tree which allow the UART to operate without Bluetooth frame errors. If/when DMA is working on OMAP3630, this should be reverted. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
83 lines
2.5 KiB
Plaintext
83 lines
2.5 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only
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/dts-v1/;
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#include "omap36xx.dtsi"
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#include "logicpd-torpedo-som.dtsi"
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#include "omap-gpmc-smsc9221.dtsi"
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#include "logicpd-torpedo-baseboard.dtsi"
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/ {
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model = "LogicPD Zoom DM3730 Torpedo + Wireless Development Kit";
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compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3630", "ti,omap3";
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wl12xx_vmmc: wl12xx_vmmc {
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compatible = "regulator-fixed";
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regulator-name = "vwl1271";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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gpio = <&gpio5 29 0>; /* gpio157 */
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startup-delay-us = <70000>;
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enable-active-high;
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vin-supply = <&vmmc2>;
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};
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};
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/*
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* Only found on the wireless SOM. For the SOM without wireless, the pins for
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* MMC3 can be routed with jumpers to the second MMC slot on the devkit and
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* gpio157 is not connected. So this should be OK to keep common for now,
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* probably device tree overlays is the way to go with the various SOM and
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* jumpering combinations for the long run.
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*/
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&mmc3 {
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interrupts-extended = <&intc 94 &omap3_pmx_core 0x136>;
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pinctrl-0 = <&mmc3_pins &mmc3_core2_pins>;
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pinctrl-names = "default";
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vmmc-supply = <&wl12xx_vmmc>;
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non-removable;
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bus-width = <4>;
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cap-power-off-card;
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#address-cells = <1>;
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#size-cells = <0>;
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wlcore: wlcore@2 {
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compatible = "ti,wl1283";
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reg = <2>;
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interrupt-parent = <&gpio5>;
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interrupts = <24 IRQ_TYPE_EDGE_RISING>; /* gpio 152 */
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ref-clock-frequency = <26000000>;
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tcxo-clock-frequency = <26000000>;
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};
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};
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&uart2 {
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/delete-property/dma-names;
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bluetooth {
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compatible = "ti,wl1283-st";
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enable-gpios = <&gpio6 2 GPIO_ACTIVE_HIGH>; /* gpio 162 */
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max-speed = <3000000>;
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};
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};
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&omap3_pmx_core {
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mmc3_pins: pinmux_mm3_pins {
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pinctrl-single,pins = <
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OMAP3_CORE1_IOPAD(0x2164, PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc2_dat4.sdmmc3_dat0 */
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OMAP3_CORE1_IOPAD(0x2166, PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc2_dat5.sdmmc3_dat1 */
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OMAP3_CORE1_IOPAD(0x2168, PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc2_dat6.sdmmc3_dat2 */
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OMAP3_CORE1_IOPAD(0x216a, PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc2_dat6.sdmmc3_dat3 */
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OMAP3_CORE1_IOPAD(0x2184, PIN_INPUT_PULLUP | MUX_MODE4) /* mcbsp4_clkx.gpio_152 */
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OMAP3_CORE1_IOPAD(0x218e, PIN_OUTPUT | MUX_MODE4) /* mcbsp1_fsr.gpio_157 */
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>;
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};
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};
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&omap3_pmx_core2 {
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mmc3_core2_pins: pinmux_mmc3_core2_pins {
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pinctrl-single,pins = <
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OMAP3630_CORE2_IOPAD(0x25d8, PIN_INPUT_PULLUP | MUX_MODE2) /* etk_clk.sdmmc3_clk */
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OMAP3630_CORE2_IOPAD(0x25da, PIN_INPUT_PULLUP | MUX_MODE2) /* etk_ctl.sdmmc3_cmd */
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>;
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};
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};
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