diff options
| author | Elyes HAOUAS <ehaouas@noos.fr> | 2019-04-16 08:12:10 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-04-23 10:06:35 +0000 |
| commit | 34564ed154b6734cc51bf05d61b45d9a74cdc2b5 (patch) | |
| tree | 064c5680530d37c6bd7d56bb1091af6631562db4 /src | |
| parent | da9302a2c42038594ed0127b8887c7d984cd65e1 (diff) | |
ACPI: Clarify serial bus revision and specific revision
Serial bus revision [Byte 3] and serial bus specific revision [Byte 9]
are not the same.
Change-Id: I366f62e6aa0e9c0dfbc1ec17adeebc42a0e777eb
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32329
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/acpi_device.c | 8 | ||||
| -rw-r--r-- | src/arch/x86/include/arch/acpi_device.h | 9 |
2 files changed, 10 insertions, 7 deletions
diff --git a/src/arch/x86/acpi_device.c b/src/arch/x86/acpi_device.c index c57ba48094..5d8777f37f 100644 --- a/src/arch/x86/acpi_device.c +++ b/src/arch/x86/acpi_device.c @@ -377,7 +377,7 @@ void acpi_device_write_i2c(const struct acpi_i2c *i2c) desc_length = acpi_device_write_zero_len(); /* Byte 3: Revision ID */ - acpigen_emit_byte(ACPI_SERIAL_BUS_REVISION_ID); + acpigen_emit_byte(ACPI_I2C_SERIAL_BUS_REVISION_ID); /* Byte 4: Resource Source Index is Reserved */ acpigen_emit_byte(0); @@ -401,7 +401,7 @@ void acpi_device_write_i2c(const struct acpi_i2c *i2c) acpigen_emit_word(i2c->mode_10bit); /* Byte 9: Type Specific Revision ID */ - acpigen_emit_byte(ACPI_SERIAL_BUS_REVISION_ID); + acpigen_emit_byte(ACPI_I2C_TYPE_SPECIFIC_REVISION_ID); /* Byte 10-11: I2C Type Data Length */ type_length = acpi_device_write_zero_len(); @@ -435,7 +435,7 @@ void acpi_device_write_spi(const struct acpi_spi *spi) desc_length = acpi_device_write_zero_len(); /* Byte 3: Revision ID */ - acpigen_emit_byte(ACPI_SERIAL_BUS_REVISION_ID); + acpigen_emit_byte(ACPI_SPI_SERIAL_BUS_REVISION_ID); /* Byte 4: Resource Source Index is Reserved */ acpigen_emit_byte(0); @@ -464,7 +464,7 @@ void acpi_device_write_spi(const struct acpi_spi *spi) acpigen_emit_word(flags); /* Byte 9: Type Specific Revision ID */ - acpigen_emit_byte(ACPI_SERIAL_BUS_REVISION_ID); + acpigen_emit_byte(ACPI_SPI_TYPE_SPECIFIC_REVISION_ID); /* Byte 10-11: SPI Type Data Length */ type_length = acpi_device_write_zero_len(); diff --git a/src/arch/x86/include/arch/acpi_device.h b/src/arch/x86/include/arch/acpi_device.h index d26f330695..35695467cb 100644 --- a/src/arch/x86/include/arch/acpi_device.h +++ b/src/arch/x86/include/arch/acpi_device.h @@ -309,9 +309,12 @@ void acpi_device_write_gpio(const struct acpi_gpio *gpio); * ACPI Descriptors for Serial Bus interfaces */ -#define ACPI_SERIAL_BUS_TYPE_I2C 1 -#define ACPI_SERIAL_BUS_TYPE_SPI 2 -#define ACPI_SERIAL_BUS_REVISION_ID 1 +#define ACPI_SERIAL_BUS_TYPE_I2C 1 +#define ACPI_SERIAL_BUS_TYPE_SPI 2 +#define ACPI_I2C_SERIAL_BUS_REVISION_ID 1 /* TODO: upgrade to 2 */ +#define ACPI_I2C_TYPE_SPECIFIC_REVISION_ID 1 +#define ACPI_SPI_SERIAL_BUS_REVISION_ID 1 +#define ACPI_SPI_TYPE_SPECIFIC_REVISION_ID 1 /* * ACPI I2C Bus |