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/* SPDX-License-Identifier: GPL-2.0-only */
#include <soc/pcr_ids.h>
#define PMCR_D0_MASK 0xFFFC
#define PMCR_D3_MASK 0x0003
Scope (\_SB.PCI0) {
/*
* Clear register 0x1C20/0x4820
* Arg0 - PCR Port ID
*/
Method(SCSC, 1, Serialized)
{
PCRA (Arg0, 0x1C20, 0x0)
PCRA (Arg0, 0x4820, 0x0)
}
/* EMMC */
Device(PEMC) {
Name(_ADR, 0x001A0000)
Name (_DDN, "eMMC Controller")
Name(TEMP, 0)
OperationRegion(SCSR, PCI_Config, 0x00, 0x100)
Field(SCSR, WordAcc, NoLock, Preserve) {
Offset (0x84), /* PMECTRLSTATUS */
PMCR, 16,
Offset (0xA2), /* PG_CONFIG */
, 2,
PGEN, 1, /* PG_ENABLE */
}
Method(_INI) {
/*
* Clear eMMC timeout registers. _PS0 is not called by kernel when
* boot source is not eMMC, but OS still initializes eMMC. So disable
* timeout registers when boot source is not eMMC. Ported from CB:25290.
*/
SCSC (PID_EMMC)
}
Method(_PS0, 0, Serialized) {
Stall (50) /* Sleep 50 us */
PGEN = 0 /* Disable PG */
/* Clear register 0x1C20/0x4820 */
SCSC (PID_EMMC)
/* Set Power State to D0 */
PMCR &= PMCR_D0_MASK
/* Additional config read to eMMC controller. Ported from CB:23312 */
TEMP = PMCR
}
Method(_PS3, 0, Serialized) {
PGEN = 1 /* Enable PG */
/* Set Power State to D3 */
PMCR |= PMCR_D3_MASK
/* Additional config read to eMMC controller. Ported from CB:23312 */
TEMP = PMCR
}
Device (CARD)
{
Name (_ADR, 0x00000008)
Method (_RMV, 0, NotSerialized)
{
Return (0)
}
}
}
}
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