2a38551bb7
Provide ACPI devices with devicetree-compatible annotations for the three leds and the button of the APU1, as well as the GPIO driver. This will cause the Linux kernel to automatically load the following modules: leds_gpio (CONFIG_LEDS_GPIO) gpio_keys_polled (CONFIG_KEYBOARD_GPIO_POLLED) gpio_sb8xx (CONFIG_GPIO_SB8XX) See http://events.linuxfoundation.org/sites/events/files/slides/ACPI_vs_DT.pdf and https://lwn.net/Articles/612062/ for some more information on how the PRP0001 HID works. To make this usable a Linux GPIO driver for the AMD chipset is also required, which I am currently working on, but have not submitted upstream yet. Leds have been named after the convention in Documentation/leds/leds-class.txt: LED Device Naming ================= Is currently of the form: "devicename:colour:function" For comparison, on an OpenWRT device: GPIOs 0-21, ath79: gpio-1 (tp-link:green:usb ) out hi gpio-2 (tp-link:green:system) out lo gpio-3 (reset ) in hi gpio-5 (tp-link:green:qss ) out lo gpio-7 (qss ) in hi gpio-9 (tp-link:green:wlan ) out lo gpio-18 (rtl8366rb ) in hi gpio-19 (rtl8366rb ) in hi On the apu1: GPIOs 288-511, platform/PRP0001:00, AMD SB8XX/SB9XX/A5X/A8X GPIO driver: gpio-475 (switch1 ) in hi gpio-477 (apu1:green:led1 ) out hi gpio-478 (apu1:green:led2 ) out hi gpio-479 (apu1:green:led3 ) out hi Change-Id: I956ee92d9d98ef27a83ccb30d314543bd8634f2c Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de> Reviewed-on: http://review.coreboot.org/10540 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
75 lines
2.1 KiB
Text
75 lines
2.1 KiB
Text
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2011 Advanced Micro Devices, Inc.
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* Copyright (C) 2013-2014 Sage Electronic Engineering, LLC
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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 as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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/* DefinitionBlock Statement */
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DefinitionBlock (
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"DSDT.AML", /* Output filename */
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"DSDT", /* Signature */
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0x02, /* DSDT Revision, needs to be 2 for 64bit */
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"PCENG ", /* OEMID */
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"COREBOOT", /* TABLE ID */
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0x00010001 /* OEM Revision */
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)
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{ /* Start of ASL file */
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/* #include <arch/x86/acpi/debug.asl> */ /* Include global debug methods if needed */
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#include "acpi/mainboard.asl"
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#include <cpu/amd/agesa/family14/acpi/cpu.asl>
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#include "acpi/routing.asl"
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Scope(\_SB) {
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/* global utility methods expected within the \_SB scope */
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#include <arch/x86/acpi/globutil.asl>
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Device(PCI0) {
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/* Describe the AMD Northbridge */
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#include <northbridge/amd/agesa/family14/acpi/northbridge.asl>
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/* Describe the AMD Fusion Controller Hub Southbridge */
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#include <southbridge/amd/cimx/sb800/acpi/fch.asl>
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/* Primary (and only) IDE channel */
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Device(IDEC) {
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Name(_ADR, 0x00140001)
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#include "acpi/ide.asl"
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} /* end IDEC */
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}
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} /* End Scope(_SB) */
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/* Contains the supported sleep states for this chipset */
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#include <southbridge/amd/cimx/sb800/acpi/sleepstates.asl>
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/* Contains the Sleep methods (WAK, PTS, GTS, etc.) */
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#include "acpi/sleep.asl"
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#include "acpi/gpe.asl"
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/* Contains the GPIO led and button setup for this board */
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#include "acpi/buttons.asl"
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#include "acpi/gpio.asl"
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#include "acpi/leds.asl"
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#include "acpi/thermal.asl"
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}
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/* End of ASL file */
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