| /* |
| * 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")) |
| |
| OperationRegion (EMCR, PCI_Config, 0x00, 0x100) |
| Field (EMCR, DWordAcc, NoLock, Preserve) |
| { |
| Offset (0x84), /* PMECTRLSTATUS */ |
| D0D3, 2, /* POWERSTATE */ |
| 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 */ |
| Store (Zero, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| } |
| |
| Method (_PS3, 0, Serialized) |
| { |
| /* Enable Power Gate */ |
| Store (1, ^PGEN) |
| |
| /* Set Power State to D0 */ |
| Store (3, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| } |
| } |
| |
| #if !IS_ENABLED(CONFIG_EXCLUDE_NATIVE_SD_INTERFACE) |
| Device (SDXC) |
| { |
| Name (_ADR, 0x001E0006) |
| Name (_DDN, "SD Controller") |
| |
| OperationRegion (SDCR, PCI_Config, 0x00, 0x100) |
| Field (SDCR, DWordAcc, NoLock, Preserve) |
| { |
| Offset (0x84), /* PMECTRLSTATUS */ |
| D0D3, 2, /* POWERSTATE */ |
| 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 31, 6, 2, 0 */ |
| ^^PCRO (PID_SCS, 0x600, 0x00000185) |
| |
| /* Set Power State to D0 */ |
| Store (Zero, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| } |
| |
| Method (_PS3, 0, Serialized) |
| { |
| /* Enable Power Gate */ |
| Store (1, ^PGEN) |
| |
| /* Set Power State to D0 */ |
| Store (3, Local0) |
| Store (Local0, ^D0D3) |
| Store (^D0D3, Local0) |
| |
| /* 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 |