| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <string.h> |
| #include <soc/spi.h> |
| |
| /* |
| * SPI lockdown configuration W25Q64FW. |
| */ |
| #define SPI_OPMENU_0 0x01 /* WRSR: Write Status Register */ |
| #define SPI_OPTYPE_0 0x01 /* Write, no address */ |
| |
| #define SPI_OPMENU_1 0x02 /* BYPR: Byte Program */ |
| #define SPI_OPTYPE_1 0x03 /* Write, address required */ |
| |
| #define SPI_OPMENU_2 0x03 /* READ: Read Data */ |
| #define SPI_OPTYPE_2 0x02 /* Read, address required */ |
| |
| #define SPI_OPMENU_3 0x05 /* RDSR: Read Status Register */ |
| #define SPI_OPTYPE_3 0x00 /* Read, no address */ |
| |
| #define SPI_OPMENU_4 0x20 /* SE20: Sector Erase 0x20 */ |
| #define SPI_OPTYPE_4 0x03 /* Write, address required */ |
| |
| #define SPI_OPMENU_5 0x9f /* RDID: Read ID */ |
| #define SPI_OPTYPE_5 0x00 /* Read, no address */ |
| |
| #define SPI_OPMENU_6 0xd8 /* BED8: Block Erase 0xd8 */ |
| #define SPI_OPTYPE_6 0x03 /* Write, address required */ |
| |
| #define SPI_OPMENU_7 0x0b /* FAST: Fast Read */ |
| #define SPI_OPTYPE_7 0x02 /* Read, address required */ |
| |
| #define SPI_OPPREFIX ((0x50 << 8) | 0x06) /* EWSR and WREN */ |
| #define SPI_OPTYPE ((SPI_OPTYPE_7 << 14) | (SPI_OPTYPE_6 << 12) | \ |
| (SPI_OPTYPE_5 << 10) | (SPI_OPTYPE_4 << 8) | \ |
| (SPI_OPTYPE_3 << 6) | (SPI_OPTYPE_2 << 4) | \ |
| (SPI_OPTYPE_1 << 2) | (SPI_OPTYPE_0 << 0)) |
| #define SPI_OPMENU_UPPER ((SPI_OPMENU_7 << 24) | (SPI_OPMENU_6 << 16) | \ |
| (SPI_OPMENU_5 << 8) | (SPI_OPMENU_4 << 0)) |
| #define SPI_OPMENU_LOWER ((SPI_OPMENU_3 << 24) | (SPI_OPMENU_2 << 16) | \ |
| (SPI_OPMENU_1 << 8) | (SPI_OPMENU_0 << 0)) |
| #define SPI_VSCC (WG_64_BYTE | EO(0x20) | BES_4_KB) |
| |
| static const struct spi_config spi_config = { |
| .preop = SPI_OPPREFIX, |
| .optype = SPI_OPTYPE, |
| .opmenu = { SPI_OPMENU_LOWER, SPI_OPMENU_UPPER }, |
| .lvscc = SPI_VSCC, |
| .uvscc = SPI_VSCC, |
| }; |
| |
| int mainboard_get_spi_config(struct spi_config *cfg) |
| { |
| memcpy(cfg, &spi_config, sizeof(*cfg)); |
| |
| return 0; |
| } |