4a98e46950
Use the published compatible strings (our own invention, "ti,mmchs" is still accepted as well, for now). Don't blindly turn on 8-bit bus mode, because even though the conroller supports it, the board has to be wired appropriately as well. Use the published property (bus-width=<n>) and honor all the valid values (1,4,8). The eMMC device on a Beaglebone Black is wired for 8-bit, update the dts. The mmchs controller can inherently do both 1.8v and 3.0v on the first device and 1.8v only on other devices, unless an external transceiver is used. Set the voltage automatically for the first device and honor the published fdt property (ti,dualvolt) for other devices. Thanks go to Ilya Bakulin for figuring out the voltage compatibility stuff.
155 lines
5.4 KiB
Plaintext
155 lines
5.4 KiB
Plaintext
/*-
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* Copyright (c) 2012 Damjan Marion <dmarion@Freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/dts-v1/;
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/include/ "am335x.dtsi"
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/ {
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model = "beaglebone-black";
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compatible = "beaglebone-black", "beaglebone", "ti,am335x";
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aliases {
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soc = &SOC;
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uart0 = &uart0;
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};
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memory {
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device_type = "memory";
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reg = < 0x80000000 0x20000000 >; /* 512MB RAM */
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};
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am335x {
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scm@44e10000 {
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/* Set of triplets < padname, muxname, padstate> */
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scm-pad-config =
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/* I2C0 */
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"I2C0_SDA", "I2C0_SDA","i2c",
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"I2C0_SCL", "I2C0_SCL","i2c",
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/* Ethernet */
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"MII1_RX_ER", "gmii1_rxerr", "input_pulldown",
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"MII1_TX_EN", "gmii1_txen", "output",
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"MII1_RX_DV", "gmii1_rxdv", "input_pulldown",
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"MII1_TXD3", "gmii1_txd3", "output",
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"MII1_TXD2", "gmii1_txd2", "output",
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"MII1_TXD1", "gmii1_txd1", "output",
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"MII1_TXD0", "gmii1_txd0", "output",
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"MII1_TX_CLK", "gmii1_txclk", "input_pulldown",
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"MII1_RX_CLK", "gmii1_rxclk", "input_pulldown",
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"MII1_RXD3", "gmii1_rxd3", "input_pulldown",
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"MII1_RXD2", "gmii1_rxd2", "input_pulldown",
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"MII1_RXD1", "gmii1_rxd1", "input_pulldown",
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"MII1_RXD0", "gmii1_rxd0", "input_pulldown",
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"MDIO", "mdio_data", "input_pullup",
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"MDC", "mdio_clk", "output_pullup",
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/* MMCSD0 */
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"MMC0_CMD", "mmc0_cmd", "input_pullup",
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"MMC0_CLK", "mmc0_clk", "input_pullup",
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"MMC0_DAT0", "mmc0_dat0", "input_pullup",
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"MMC0_DAT1", "mmc0_dat1", "input_pullup",
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"MMC0_DAT2", "mmc0_dat2", "input_pullup",
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"MMC0_DAT3", "mmc0_dat3", "input_pullup",
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/* MMC1 */
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"GPMC_CSn1", "mmc1_clk", "input_pullup",
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"GPMC_CSn2", "mmc1_cmd", "input_pullup",
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"GPMC_CSn3", "gpio2_0", "output_pullup", /* Reset */
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"GPMC_AD0", "mmc1_dat0", "input_pullup",
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"GPMC_AD1", "mmc1_dat1", "input_pullup",
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"GPMC_AD2", "mmc1_dat2", "input_pullup",
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"GPMC_AD3", "mmc1_dat3", "input_pullup",
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"GPMC_AD4", "mmc1_dat4", "input_pullup",
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"GPMC_AD5", "mmc1_dat5", "input_pullup",
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"GPMC_AD6", "mmc1_dat6", "input_pullup",
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"GPMC_AD7", "mmc1_dat7", "input_pullup",
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/* GPIO */
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"ECAP0_IN_PWM0_OUT", "gpio0_7", "input_pulldown",
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"GPMC_AD10", "gpio0_26", "input_pulldown",
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"GPMC_AD11", "gpio0_27", "input_pulldown",
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"GPMC_AD12", "gpio1_12", "input_pulldown",
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"GPMC_AD13", "gpio1_13", "input_pulldown",
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"GPMC_AD14", "gpio1_14", "input_pulldown",
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"GPMC_AD15", "gpio1_15", "input_pulldown",
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"GPMC_A0", "gpio1_16", "input_pulldown",
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"GPMC_A1", "gpio1_17", "input_pulldown",
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"GPMC_A5", "gpio1_21", "output", /* User LED 1 */
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"GPMC_A6", "gpio1_22", "output", /* User LED 2 */
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"GPMC_A7", "gpio1_23", "output", /* User LED 3 */
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"GPMC_A8", "gpio1_24", "output", /* User LED 4 */
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"GPMC_BEn1", "gpio1_28", "input_pulldown",
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"GPMC_CSn0", "gpio1_29", "input_pulldown",
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"GPMC_CLK", "gpio2_1", "input_pulldown",
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"LCD_DATA0", "gpio2_6", "input_pulldown",
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"LCD_DATA1", "gpio2_7", "input_pulldown",
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"LCD_DATA2", "gpio2_8", "input_pulldown",
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"LCD_DATA3", "gpio2_9", "input_pulldown",
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"LCD_DATA4", "gpio2_10", "input_pulldown",
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"LCD_DATA5", "gpio2_11", "input_pulldown",
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"LCD_DATA6", "gpio2_12", "input_pulldown",
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"LCD_DATA7", "gpio2_13", "input_pulldown",
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"LCD_VSYNC", "gpio2_22", "input_pulldown",
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"LCD_HSYNC", "gpio2_23", "input_pulldown",
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"LCD_PCLK", "gpio2_24", "input_pulldown",
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"LCD_AC_BIAS_EN", "gpio2_25", "input_pulldown",
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"MCASP0_FSR", "gpio3_19", "input_pulldown",
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"MCASP0_AHCLKX", "gpio3_21", "input_pulldown",
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/* TIMERs */
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"GPMC_ADVn_ALE", "timer4", "output",
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"GPMC_BEn0_CLE", "timer5", "output",
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"GPMC_WEn", "timer6", "output",
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"GPMC_OEn_REn", "timer7", "output",
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/* USB0 and USB1 */
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"USB0_DRVVBUS", "USB0_DRVVBUS", "output",
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"USB1_DRVVBUS", "USB1_DRVVBUS", "output",
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/* PWM */
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"GPMC_A2", "ehrpwm1A", "output",
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"GPMC_A3", "ehrpwm1B", "output",
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"GPMC_AD8", "ehrpwm2A", "output",
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"GPMC_AD9", "ehrpwm2B", "output";
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};
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mmchs1@481D8000 {
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bus-width = <8>;
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status = "okay";
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};
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i2c@44e0b000 {
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pmic@24 {
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compatible = "ti,am335x-pmic";
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reg = <0x24>;
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};
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}
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};
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chosen {
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stdin = "uart0";
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stdout = "uart0";
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};
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};
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