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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/* Intel Storage Controllers */
Device (EMMC)
{
Name (_ADR, 0x001E0004)
Name (_DDN, "eMMC Controller")
Name (UUID, ToUUID ("E5C937D0-3553-4D7A-9117-EA4D19C3434D"))
Name (TEMP, 0)
OperationRegion (EMCR, PCI_Config, 0x00, 0x100)
Field (EMCR, WordAcc, NoLock, Preserve)
{
Offset (0x84), /* PMECTRLSTATUS */
PMCR, 16,
Offset (0xa2), /* PG_CONFIG */
, 2,
PGEN, 1, /* PG_ENABLE */
}
/*
* Device Specific Method
* Arg0 - UUID
* Arg1 - Revision
* Arg2 - Function Index
*/
Method (_DSM, 4)
{
If (LEqual (Arg0, ^UUID)) {
/*
* Function 9: Device Readiness Durations
* Returns a package of five integers covering
* various device related delay in PCIe Base Spec.
*/
If (LEqual (Arg2, 9)) {
/*
* Function 9 support for revision 3.
* ECN link for function definitions
* [https://pcisig.com/sites/default/files/
* specification_documents/
* ECN_fw_latency_optimization_final.pdf]
*/
If (LEqual (Arg1, 3)) {
/*
* Integer 0: FW reset time.
* Integer 1: FW data link up time.
* Integer 2: FW functional level reset
* time.
* Integer 3: FW D3 hot to D0 time.
* Integer 4: FW VF enable time.
* set ACPI constant Ones for elements
* where overriding the default value
* is not desired.
*/
Return (Package (5) {0, Ones, Ones,
Ones, Ones})
}
}
}
Return (Buffer() { 0x00 })
}
Method (_PS0, 0, Serialized)
{
/* Disable Power Gate */
Store (0, ^PGEN)
/* Clear bits 31, 6, 2, 0 */
^^PCRA (PID_SCS, 0x600, 0x7FFFFFBA)
Sleep (2)
/* Set bits 31, 6, 2, 0 */
^^PCRO (PID_SCS, 0x600, 0x80000045)
/* Set Power State to D0 */
And (PMCR, 0xFFFC, PMCR)
Store (PMCR, ^TEMP)
}
Method (_PS3, 0, Serialized)
{
/* Enable Power Gate */
Store (1, ^PGEN)
/* Set Power State to D3 */
Or (PMCR, 0x0003, PMCR)
Store (PMCR, ^TEMP)
}
}
#if !IS_ENABLED(CONFIG_EXCLUDE_NATIVE_SD_INTERFACE)
Device (SDXC)
{
Name (_ADR, 0x001E0006)
Name (_DDN, "SD Controller")
Name (TEMP, 0)
OperationRegion (SDCR, PCI_Config, 0x00, 0x100)
Field (SDCR, WordAcc, NoLock, Preserve)
{
Offset (0x84), /* PMECTRLSTATUS */
PMCR, 16,
Offset (0xa2), /* PG_CONFIG */
, 2,
PGEN, 1, /* PG_ENABLE */
}
Method (_PS0, 0, Serialized)
{
/* Disable 20K pull-down on CLK, CMD and DAT lines */
^^PCRA (PID_GPIOCOM3, 0x4c4, 0xFFFFEFFF)
^^PCRA (PID_GPIOCOM3, 0x4cc, 0xFFFFEFFF)
^^PCRA (PID_GPIOCOM3, 0x4d4, 0xFFFFEFFF)
^^PCRA (PID_GPIOCOM3, 0x4dc, 0xFFFFEFFF)
^^PCRA (PID_GPIOCOM3, 0x4e4, 0xFFFFEFFF)
^^PCRA (PID_GPIOCOM3, 0x4f4, 0xFFFFEFFF)
/* Disable Power Gate */
Store (0, ^PGEN)
/* Clear bits 8, 7, 2, 0 */
^^PCRA (PID_SCS, 0x600, 0xFFFFFE7A)
Sleep (2)
/* Set bits 8, 7, 2, 0 */
^^PCRO (PID_SCS, 0x600, 0x00000185)
/* Set Power State to D0 */
And (PMCR, 0xFFFC, PMCR)
Store (PMCR, ^TEMP)
}
Method (_PS3, 0, Serialized)
{
/* Enable Power Gate */
Store (1, ^PGEN)
/* Set Power State to D3 */
Or (PMCR, 0x0003, PMCR)
Store (PMCR, ^TEMP)
/* Enable 20K pull-down on CLK, CMD and DAT lines */
^^PCRO (PID_GPIOCOM3, 0x4c4, 0x00001000)
^^PCRO (PID_GPIOCOM3, 0x4cc, 0x00001000)
^^PCRO (PID_GPIOCOM3, 0x4d4, 0x00001000)
^^PCRO (PID_GPIOCOM3, 0x4dc, 0x00001000)
^^PCRO (PID_GPIOCOM3, 0x4e4, 0x00001000)
^^PCRO (PID_GPIOCOM3, 0x4f4, 0x00001000)
}
}
#endif
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