[coreboot-gerrit] [XS] Change in coreboot[main]: acpi/acpi: update ACPI_DBG2_PORT_SERIAL_16550 subtype

[Felix Held (Code Review)]

Attention is currently required from: Cliff Huang, Lance Zhao, Matt DeVillier, Raul Rangel, Tim Wawrzynczak.

Hello Cliff Huang, Lance Zhao, Matt DeVillier, Tim Wawrzynczak, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/79219?usp=email

to look at the new patch set (#4).

Change subject: acpi/acpi: update ACPI_DBG2_PORT_SERIAL_16550 subtype
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acpi/acpi: update ACPI_DBG2_PORT_SERIAL_16550 subtype

The Microsoft Debug Port Table 2 (DBG2) specification says that the
serial port subtype 0x00 should only be used for I/O-mapped 16550
compatible UARTs. The subtype 0x12 is a superset of that, and supports
specifying MMIO vs IO and the register access size via the generic
address structure. Rename the subtype 0x00 definition to
ACPI_DBG2_PORT_SERIAL_16550_IO_ONLY and add the subtype 0x12 definition
as new ACPI_DBG2_PORT_SERIAL_16550, so that the acpi_write_dbg2_uart
function will write the correct subtype for the generic 16550 UART.

Signed-off-by: Felix Held 
Change-Id: I816bb22e6f76e661c8b8e39a2a4cb83b0085acb5
---
M src/include/acpi/acpi.h
1 file changed, 2 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/19/79219/4