Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | |
| 3 | /* |
| 4 | * This file is created based on Intel Alder Lake Processor PCH Datasheet |
| 5 | * Document number: 621483 |
| 6 | * Chapter number: 7 |
| 7 | */ |
| 8 | |
Subrata Banik | 65f5932 | 2020-12-19 19:35:08 +0530 | [diff] [blame] | 9 | #include <intelblocks/fast_spi.h> |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 10 | #include <intelblocks/spi.h> |
| 11 | #include <soc/pci_devs.h> |
Wonkyu Kim | aaec809 | 2021-09-15 15:52:51 -0700 | [diff] [blame] | 12 | |
| 13 | #define PSF_SPI_DESTINATION_ID 0x23a8 |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 14 | |
| 15 | int spi_soc_devfn_to_bus(unsigned int devfn) |
| 16 | { |
| 17 | switch (devfn) { |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 18 | case PCH_DEVFN_GSPI0: |
| 19 | return 1; |
| 20 | case PCH_DEVFN_GSPI1: |
| 21 | return 2; |
| 22 | case PCH_DEVFN_GSPI2: |
| 23 | return 3; |
| 24 | case PCH_DEVFN_GSPI3: |
| 25 | return 4; |
| 26 | } |
| 27 | return -1; |
| 28 | } |
Subrata Banik | 65f5932 | 2020-12-19 19:35:08 +0530 | [diff] [blame] | 29 | |
Wonkyu Kim | aaec809 | 2021-09-15 15:52:51 -0700 | [diff] [blame] | 30 | uint32_t soc_get_spi_psf_destination_id(void) |
Subrata Banik | 65f5932 | 2020-12-19 19:35:08 +0530 | [diff] [blame] | 31 | { |
Wonkyu Kim | aaec809 | 2021-09-15 15:52:51 -0700 | [diff] [blame] | 32 | return PSF_SPI_DESTINATION_ID; |
Subrata Banik | 65f5932 | 2020-12-19 19:35:08 +0530 | [diff] [blame] | 33 | } |