0af28cc926
Latest update to the BeagleBoard-X15 platform (revision B1)[1] updates for allowing UHS SD cards to function with the split of supply to SD card from a dedicated LDO. As a result of this, AM57xx BeagleBoard-X15 now uses gpio2_30 instead of gpio6_28 for HDMI because HDMI_LS_OE should now be switched from GPIO6_28(Y9) to GPIO2_30 (AG8) to avoid a 1.8V GPIO toggling a 3.3V SoC input when the SD card is in UHS 1.8V mode. NOTE: For UHS mode to function, we need full fledged IODelay support in kernel to be functional. IODelay support is yet to be added. Further, It does not make much sense to spin off a new board compatible flag since there is no real functional benefit for the same. Note: Even though production version is supposed to be B1, there is over ~200 boards of previous version (A2)[2] out there which continue to get supported with the existing dts file (to maintain compatibility with existing bootloaders for A2) and the production board is now supported as revb1. [1] https://github.com/beagleboard/beagleboard-x15/blob/master/BEAGLEBOARD_X15_REV_B1.pdf [2] http://marc.info/?l=linux-arm-kernel&m=147273929820708&w=2 Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
25 lines
638 B
Plaintext
25 lines
638 B
Plaintext
/*
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* Copyright (C) 2014-2016 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "am57xx-beagle-x15-common.dtsi"
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/ {
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model = "TI AM5728 BeagleBoard-X15 rev B1";
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};
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&tpd12s015 {
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gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>, /* gpio7_10, CT CP HPD */
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<&gpio2 30 GPIO_ACTIVE_HIGH>, /* gpio2_30, LS OE */
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<&gpio7 12 GPIO_ACTIVE_HIGH>; /* gpio7_12/sp1_cs2, HPD */
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};
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&mmc1 {
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vmmc-supply = <&vdd_3v3>;
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vmmc-aux-supply = <&ldo1_reg>;
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};
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