u-boot.git/arch/microblaze/include/asm/global_data.h, branch v2024.01

microblaze: cache: introduce cpuinfo structure

2022-06-24T12:16:00+00:00

Introduce a minimal cpuinfo structure to hold cache related info. The
instruction/data cache size and cache line size are initialized early in
the boot to default Kconfig values. They will be overwritten with data
from PVR/dtb if the microblaze UCLASS_CPU driver is enabled.

The cpuinfo struct was placed in global_data to allow the microblaze
UCLASS_CPU driver to also run before relocation (initialized global data
should be read-only before relocation).

gd_cpuinfo() helper macro was added to avoid volatile
"-Wdiscarded-qualifiers" warnings when using the pointer directly.

Signed-off-by: Ovidiu Panait 
Link: https://lore.kernel.org/r/20220531181435.3473549-10-ovpanait@gmail.com
Signed-off-by: Michal Simek  (s/bralid/brlid/)

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

microblaze: Use generic global_data

2013-02-04T14:05:45+00:00

Move microblaze over to use generic global_data.

Signed-off-by: Simon Glass 
Tested-by: Michal Simek

Add architecture-specific global data

2013-02-01T20:07:49+00:00

We plan to move architecture-specific data into a separate structure so
that we can make the rest of it common.

As a first step, create struct arch_global_data to hold these fields.
Initially it is empty.

This patch applies to all archs at once. I can split it if this is really
a pain.

Signed-off-by: Simon Glass

microblaze: Change bi_baudrate and global data baudrate to int

2012-10-19T22:25:44+00:00

These don't need to be longs, so change them.

Signed-off-by: Simon Glass 
Signed-off-by: Tom Rini

microblaze: Add support for device tree driven board configuration

2012-09-11T07:24:56+00:00

This is minimum code required to be able to use device-tree
for u-boot initialization.
Currently only for device driver initialization.

Linker script change ensures DTB to be aligned
for both options CONFIG_OF_EMBED and CONFIG_OF_SEPARATE.

Signed-off-by: Michal Simek 
Acked-by: Stephan Linz 
CC: Simon Glass

global_data: unify global flag defines

2012-08-09T19:46:32+00:00

All the global flag defines are the same across all arches.  So unify them
in one place, and add a simple way for arches to extend for their needs.

Signed-off-by: Mike Frysinger

console: Implement pre-console buffer

2011-10-05T20:03:09+00:00

Allow redirection of console output prior to console initialisation to a
temporary buffer.

To enable this functionality, the board (or arch) must define:
 - CONFIG_PRE_CONSOLE_BUFFER - Enable pre-console buffer
 - CONFIG_PRE_CON_BUF_ADDR - Base address of pre-console buffer
 - CONFIG_PRE_CON_BUF_SZ - Size of pre-console buffer (in bytes)

The pre-console buffer will buffer the last CONFIG_PRE_CON_BUF_SZ bytes
Any earlier characters are silently dropped.

Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value

2010-10-26T19:05:30+00:00

CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough.  This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool.  In the result, all definitions of this value can be
deleted from the board config files.  We have to make sure that all
files that reference such data include the new  file.

No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.

Signed-off-by: Wolfgang Denk 
Acked-by: Kumar Gala