| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <soc/pcr_ids.h> |
| |
| 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 register 0x1C20/0x4820 */ |
| SCSC (PID_EMMC) |
| } |
| |
| Method(_PS0, 0, Serialized) { |
| Stall (50) // Sleep 50 us |
| |
| Store(0, PGEN) // Disable PG |
| |
| /* Clear register 0x1C20/0x4820 */ |
| SCSC (PID_EMMC) |
| |
| /* Set Power State to D0 */ |
| And (PMCR, 0xFFFC, PMCR) |
| Store (PMCR, TEMP) |
| } |
| |
| Method(_PS3, 0, Serialized) { |
| Store(1, PGEN) // Enable PG |
| |
| /* Set Power State to D3 */ |
| Or (PMCR, 0x0003, PMCR) |
| Store (PMCR, TEMP) |
| } |
| |
| Device (CARD) |
| { |
| Name (_ADR, 0x00000008) |
| Method (_RMV, 0, NotSerialized) |
| { |
| Return (0) |
| } |
| } |
| } |
| |
| /* SD CARD */ |
| Device (SDXC) |
| { |
| Name (_ADR, 0x00140005) |
| Name (_DDN, "SD Controller") |
| Name (TEMP, 0) |
| |
| OperationRegion (SDPC, PCI_Config, 0x00, 0x100) |
| Field (SDPC, WordAcc, NoLock, Preserve) |
| { |
| Offset (0x84), /* PMECTRLSTATUS */ |
| PMCR, 16, |
| Offset (0xA2), /* PG_CONFIG */ |
| , 2, |
| PGEN, 1, /* PG_ENABLE */ |
| } |
| |
| Method(_INI) |
| { |
| /* Clear register 0x1C20/0x4820 */ |
| SCSC (PID_SDX) |
| } |
| |
| Method (_PS0, 0, Serialized) |
| { |
| Store (0, PGEN) /* Disable PG */ |
| |
| /* Clear register 0x1C20/0x4820 */ |
| SCSC (PID_SDX) |
| |
| /* Set Power State to D0 */ |
| And (PMCR, 0xFFFC, PMCR) |
| Store (PMCR, TEMP) |
| } |
| |
| Method (_PS3, 0, Serialized) |
| { |
| Store (1, PGEN) /* Enable PG */ |
| |
| /* Set Power State to D3 */ |
| Or (PMCR, 0x0003, PMCR) |
| Store (PMCR, TEMP) |
| } |
| |
| Device (CARD) |
| { |
| Name (_ADR, 0x00000008) |
| Method (_RMV, 0, NotSerialized) |
| { |
| Return (1) |
| } |
| } |
| } /* Device (SDXC) */ |
| } |