u-boot.git/drivers/serial/serial_coreboot.c, branch v2024.04

x86: Allow locating the UART from ACPI tables

2023-05-11T02:25:29+00:00

When coreboot does not pass a UART in its sysinfo struct, there is no
easy way to find it out.

Since coreboot does not actually init the serial device when serial is
disabled, it is not possible to make it add this information to the
sysinfo table.

Add a way to obtain this information from the DBG2 ACPI table, which is
normally set up by coreboot.

For now this only supports a memory-mapped 16550-style UART.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

x86: Make coreboot sysinfo available to any x86 board

2021-03-27T00:59:37+00:00

It is possible to boot U-Boot for chromebook_coral either 'bare metal' or
from coreboot. In the latter case we want to provide access to the coreboot
sysinfo tables. Move the definitions into a file available to any x86
board.

Signed-off-by: Simon Glass

serial: Update NS16550_t and struct NS16550

2021-01-05T19:24:40+00:00

Typedefs should not be used in U-Boot and structs should be lower case.
Update the code to use struct ns16550 consistently.

Put a header guard on the file while we are here.

Signed-off-by: Simon Glass 

Reviewed-by: Andy Shevchenko

dm: treewide: Rename ..._platdata variables to just ..._plat

2020-12-13T23:51:09+00:00

Try to maintain some consistency between these variables by using _plat as
a suffix for them.

Signed-off-by: Simon Glass

dm: treewide: Rename ofdata_to_platdata() to of_to_plat()

2020-12-13T23:51:09+00:00

This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.

Signed-off-by: Simon Glass

dm: treewide: Rename dev_get_platdata() to dev_get_plat()

2020-12-13T23:51:09+00:00

Rename this to be consistent with the change from 'platdata'.

Signed-off-by: Simon Glass

dm: treewide: Rename 'platdata' variables to just 'plat'

2020-12-13T23:51:08+00:00

We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).

Rename some of the latter variables to end with 'plat' for consistency.

Signed-off-by: Simon Glass

dm: treewide: Rename auto_alloc_size members to be shorter

2020-12-13T15:00:25+00:00

This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass

x86: serial: Add a coreboot serial driver

2020-02-03T17:19:25+00:00

Coreboot can provide information about the serial device in use on a
platform. Add a driver that uses this information to produce a working
UART.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

x86: Rename coreboot-serial to x86-serial

2014-12-19T00:26:08+00:00

Signed-off-by: Bin Meng 
Acked-by: Simon Glass