diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/espi.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/espi.h b/src/soc/amd/common/block/include/amdblocks/espi.h new file mode 100644 index 0000000000..82410e58d3 --- /dev/null +++ b/src/soc/amd/common/block/include/amdblocks/espi.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* This file is part of the coreboot project. */ + +#ifndef __AMDBLOCKS_ESPI_H__ +#define __AMDBLOCKS_ESPI_H__ + +/* eSPI MMIO base lives at an offset of 0x10000 from the address in SPI BAR. */ +#define ESPI_OFFSET_FROM_BAR 0x10000 + +#define ESPI_DECODE 0x40 +#define ESPI_DECODE_MMIO_RANGE_EN(range) (1 << (((range) & 3) + 12)) +#define ESPI_DECODE_IO_RANGE_EN(range) (1 << (((range) & 3) + 8)) +#define ESPI_DECODE_IO_0x80_EN (1 << 2) +#define ESPI_DECODE_IO_0X60_0X64_EN (1 << 1) +#define ESPI_DECODE_IO_0X2E_0X2F_EN (1 << 0) + +#define ESPI_IO_RANGE_BASE(range) (0x44 + ((range) & 3) * 2) +#define ESPI_IO_RANGE_SIZE(range) (0x4c + ((range) & 3)) +#define ESPI_MMIO_RANGE_BASE(range) (0x50 + ((range) & 3) * 4) +#define ESPI_MMIO_RANGE_SIZE(range) (0x60 + ((range) & 3) * 2) + +#define ESPI_GENERIC_IO_WIN_COUNT 4 +#define ESPI_GENERIC_IO_MAX_WIN_SIZE 0x100 +#define ESPI_GENERIC_MMIO_WIN_COUNT 4 +#define ESPI_GENERIC_MMIO_MAX_WIN_SIZE 0x10000 + +#endif /* __AMDBLOCKS_ESPI_H__ */ |