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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
| }
|
|
