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- /** @file
- *
- * Copyright (c) 2021, ARM Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-2-Clause-Patent
- *
- **/
- #include <IndustryStandard/Bcm2836SdHost.h>
- #include <IndustryStandard/Bcm2836Sdio.h>
- #include <IndustryStandard/Bcm2711.h>
- #include "AcpiTables.h"
- DefinitionBlock (__FILE__, "SSDT", 2, "RPIFDN", "RPI4EMMC", 2)
- {
- Scope (\_SB_)
- {
- #if (RPI_MODEL == 4)
- Device (GDV1) {
- Name (_HID, "ACPI0004")
- Name (_UID, 0x2)
- Name (_CCA, 0x0)
- Name (RBUF, ResourceTemplate ()
- {
- MEMORY32FIXED (ReadWrite, 0, MMCHS2_LENGTH, RMEM)
- })
- Method (_CRS, 0x0, Serialized)
- {
- MEMORY32SETBASE (RBUF, RMEM, RBAS, MMCHS2_OFFSET)
- Return (^RBUF)
- }
- // Translated DMA region for BCM2711 silicon revisions older than C0
- Name (DMTR, ResourceTemplate() {
- QWordMemory (ResourceProducer,
- ,
- MinFixed,
- MaxFixed,
- NonCacheable,
- ReadWrite,
- 0x0,
- 0x00000000C0000000, // MIN
- 0x00000000FFFFFFFF, // MAX
- 0xFFFFFFFF40000000, // TRA
- 0x0000000040000000, // LEN
- ,
- ,
- )
- })
- // Non translated DMA region for BCM2711 revisions C0 and newer
- Name (DMNT, ResourceTemplate() {
- QWordMemory (ResourceProducer,
- ,
- MinFixed,
- MaxFixed,
- NonCacheable,
- ReadWrite,
- 0x0,
- 0x0000000000000000, // MIN
- 0x000000FFFFFFFFFF, // MAX
- 0x0000000000000000, // TRA
- 0x0000010000000000, // LEN
- ,
- ,
- )
- })
- Method (_DMA, 0x0, Serialized)
- {
- OperationRegion (CHPR, SystemMemory, ID_CHIPREV, 0x4)
- Field (CHPR, DWordAcc, NoLock, Preserve) {
- SOCI, 32
- }
- if ((SOCI & 0xFF) >= 0x20)
- {
- return (^DMNT);
- }
- else
- {
- return (^DMTR);
- }
- }
- // emmc2 Host Controller. (brcm,bcm2711-emmc2)
- Device (SDC3)
- {
- Name (_HID, "BRCME88C")
- Name (_UID, 0x1)
- Name (_CCA, 0x0)
- Name (_S1D, 0x1)
- Name (_S2D, 0x1)
- Name (_S3D, 0x1)
- Name (_S4D, 0x1)
- Name (SDMA, 0x2)
- Method (_STA)
- {
- Return(0xf)
- }
- Name (RBUF, ResourceTemplate ()
- {
- MEMORY32FIXED (ReadWrite, 0, MMCHS2_LENGTH, RMEM)
- Interrupt (ResourceConsumer, Level, ActiveHigh, Shared) { BCM2836_MMCHS1_INTERRUPT }
- })
- Method (_CRS, 0x0, Serialized)
- {
- MEMORY32SETBASE (RBUF, RMEM, RBAS, MMCHS2_OFFSET)
- Return (^RBUF)
- }
- // Unfortunately this controller doesn't honor the
- // standard SDHCI voltage control registers
- // (or at least Linux's standard code can't
- // lower the voltage) So, UHS mode is disabled with caps
- Name (DSD1, Package () {
- ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
- Package () {
- Package () { "sdhci-caps-mask", 0x0000000500080000 },
- }
- })
- // Along with disabling UHS, here both SDMA and ADMA2
- // are also disabled until the linux _DMA() mask/translate
- // works properly.
- Name (DSD2, Package () {
- ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
- Package () {
- Package () { "sdhci-caps-mask", 0x0000000504480000 },
- }
- })
- Method (_DSD, 0x0, Serialized)
- {
- // Select one of the sdhci-caps-mask definitions
- // depending on whether we also want to disable DMA
- if (SDMA == 0)
- {
- return (^DSD2)
- }
- else
- {
- return (^DSD1)
- }
- }
- //
- // A child device that represents the
- // sd card, which is marked as non-removable.
- //
- Device (SDMM)
- {
- Method (_ADR)
- {
- Return (0)
- }
- Method (_RMV) // Is removable
- {
- Return (0) // 0 - fixed
- }
- }
- } //SDC3
- } //GDV1
- #endif
- } //\SB
- }
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