diff options
| author | Simon Glass <sjg@chromium.org> | 2020-04-09 01:57:38 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-04-16 09:36:28 +0300 |
| commit | 91fe8b79f6912ab7622169bc1673e2df222e0b57 (patch) | |
| tree | ca9baeb3b60980b85c1982b8c3b0f22100987816 /lib | |
| parent | 89c2798f1f2f690cdd269e38ef386ff720435816 (diff) | |
| download | u-boot-91fe8b79f6912ab7622169bc1673e2df222e0b57.tar.xz | |
acpi: Add a central location for table version numbers
Each ACPI table has its own version number. Add the version numbers in a
single function so we can keep them consistent and easily see what
versions are supported.
Start a new acpi_table file in a generic directory to house this function.
We can move things over to this file from x86 as needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Makefile | 1 | ||||
| -rw-r--r-- | lib/acpi/Makefile | 4 | ||||
| -rw-r--r-- | lib/acpi/acpi_table.c | 62 |
3 files changed, 67 insertions, 0 deletions
diff --git a/lib/Makefile b/lib/Makefile index 32bf3f3693..5f88d92850 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -58,6 +58,7 @@ obj-$(CONFIG_TPM_V1) += tpm-v1.o obj-$(CONFIG_TPM_V2) += tpm-v2.o endif +obj-$(CONFIG_$(SPL_)ACPIGEN) += acpi/ obj-$(CONFIG_$(SPL_)RSA) += rsa/ obj-$(CONFIG_SHA1) += sha1.o obj-$(CONFIG_SHA256) += sha256.o diff --git a/lib/acpi/Makefile b/lib/acpi/Makefile new file mode 100644 index 0000000000..660491ef71 --- /dev/null +++ b/lib/acpi/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += acpi_table.o diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c new file mode 100644 index 0000000000..3268430cd1 --- /dev/null +++ b/lib/acpi/acpi_table.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Generic code used to generate ACPI tables + * + * Copyright 2019 Google LLC + */ + +#include <common.h> +#include <acpi/acpi_table.h> + +int acpi_get_table_revision(enum acpi_tables table) +{ + switch (table) { + case ACPITAB_FADT: + return ACPI_FADT_REV_ACPI_3_0; + case ACPITAB_MADT: + return ACPI_MADT_REV_ACPI_3_0; + case ACPITAB_MCFG: + return ACPI_MCFG_REV_ACPI_3_0; + case ACPITAB_TCPA: + /* This version and the rest are open-coded */ + return 2; + case ACPITAB_TPM2: + return 4; + case ACPITAB_SSDT: /* ACPI 3.0 upto 6.3: 2 */ + return 2; + case ACPITAB_SRAT: /* ACPI 2.0: 1, ACPI 3.0: 2, ACPI 4.0 to 6.3: 3 */ + return 1; /* TODO Should probably be upgraded to 2 */ + case ACPITAB_DMAR: + return 1; + case ACPITAB_SLIT: /* ACPI 2.0 upto 6.3: 1 */ + return 1; + case ACPITAB_SPMI: /* IMPI 2.0 */ + return 5; + case ACPITAB_HPET: /* Currently 1. Table added in ACPI 2.0 */ + return 1; + case ACPITAB_VFCT: /* ACPI 2.0/3.0/4.0: 1 */ + return 1; + case ACPITAB_IVRS: + return IVRS_FORMAT_FIXED; + case ACPITAB_DBG2: + return 0; + case ACPITAB_FACS: /* ACPI 2.0/3.0: 1, ACPI 4.0 to 6.3: 2 */ + return 1; + case ACPITAB_RSDT: /* ACPI 1.0 upto 6.3: 1 */ + return 1; + case ACPITAB_XSDT: /* ACPI 2.0 upto 6.3: 1 */ + return 1; + case ACPITAB_RSDP: /* ACPI 2.0 upto 6.3: 2 */ + return 2; + case ACPITAB_HEST: + return 1; + case ACPITAB_NHLT: + return 5; + case ACPITAB_BERT: + return 1; + case ACPITAB_SPCR: + return 2; + default: + return -EINVAL; + } +} |