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2f3b679298
Add the necessary DSDT files copied from tianocore to boot the RPi4. In addition generate a board specific SSDT to dynamically enable/disable ACPI devices based on FDT. This is required to support the various variants and boot options. It also allows to test the code on QEMU 9.0 without modifications, since it doesn't emulate PCIe yet. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Simon Glass <sjg@chromium.org> Cc: Matthias Brugger <mbrugger@suse.com> Cc: Peter Robinson <pbrobinson@gmail.com>
136 lines
3.1 KiB
Text
136 lines
3.1 KiB
Text
/** @file
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*
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* Copyright (c) 2021, ARM Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-2-Clause-Patent
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*
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**/
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#include <asm/arch/acpi/bcm2836_sdhost.h>
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#include <asm/arch/acpi/bcm2836_sdio.h>
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#include <asm/arch/acpi/bcm2711.h>
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Device (GDV1) {
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Name (_HID, "ACPI0004")
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Name (_UID, 0x2)
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Name (_CCA, 0x0)
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Name (RBUF, ResourceTemplate ()
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{
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MEMORY32FIXED (ReadWrite, 0, MMCHS2_LENGTH, RMEM)
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})
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Method (_CRS, 0x0, Serialized)
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{
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MEMORY32SETBASE (RBUF, RMEM, RBAS, MMCHS2_OFFSET)
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Return (^RBUF)
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}
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// Translated DMA region for BCM2711 silicon revisions older than C0
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Name (DMTR, ResourceTemplate() {
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QWordMemory (ResourceProducer,
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,
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MinFixed,
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MaxFixed,
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NonCacheable,
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ReadWrite,
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0x0,
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0x00000000C0000000, // MIN
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0x00000000FFFFFFFF, // MAX
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0xFFFFFFFF40000000, // TRA
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0x0000000040000000, // LEN
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,
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,
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)
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})
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// Non translated DMA region for BCM2711 revisions C0 and newer
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Name (DMNT, ResourceTemplate() {
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QWordMemory (ResourceProducer,
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,
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MinFixed,
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MaxFixed,
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NonCacheable,
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ReadWrite,
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0x0,
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0x0000000000000000, // MIN
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0x000000FFFFFFFFFF, // MAX
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0x0000000000000000, // TRA
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0x0000010000000000, // LEN
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,
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,
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)
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})
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// emmc2 Host Controller. (brcm,bcm2711-emmc2)
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Device (SDC3)
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{
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Name (_HID, "BRCME88C")
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Name (_UID, 0x1)
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Name (_CCA, 0x0)
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Name (_S1D, 0x1)
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Name (_S2D, 0x1)
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Name (_S3D, 0x1)
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Name (_S4D, 0x1)
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Name (SDMA, 0x2)
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Name (RBUF, ResourceTemplate ()
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{
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MEMORY32FIXED (ReadWrite, 0, MMCHS2_LENGTH, RMEM)
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Interrupt (ResourceConsumer, Level, ActiveHigh, Shared) { BCM2836_MMCHS1_INTERRUPT }
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})
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Method (_CRS, 0x0, Serialized)
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{
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MEMORY32SETBASE (RBUF, RMEM, RBAS, MMCHS2_OFFSET)
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Return (^RBUF)
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}
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// Unfortunately this controller doesn't honor the
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// standard SDHCI voltage control registers
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// (or at least Linux's standard code can't
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// lower the voltage) So, UHS mode is disabled with caps
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Name (DSD1, Package () {
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ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
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Package () {
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Package () { "sdhci-caps-mask", 0x0000000500080000 },
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}
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})
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// Along with disabling UHS, here both SDMA and ADMA2
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// are also disabled until the linux _DMA() mask/translate
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// works properly.
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Name (DSD2, Package () {
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ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
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Package () {
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Package () { "sdhci-caps-mask", 0x0000000504480000 },
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}
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})
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Method (_DSD, 0x0, Serialized)
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{
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// Select one of the sdhci-caps-mask definitions
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// depending on whether we also want to disable DMA
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if (SDMA == 0)
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{
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return (^DSD2)
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}
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else
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{
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return (^DSD1)
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}
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}
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//
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// A child device that represents the
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// sd card, which is marked as non-removable.
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//
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Device (SDMM)
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{
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Method (_ADR)
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{
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Return (0)
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}
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Method (_RMV) // Is removable
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{
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Return (0) // 0 - fixed
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}
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}
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} //SDC3
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} //GDV1
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