Commit graph

15 commits

Author SHA1 Message Date
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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 <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Álvaro Fernández Rojas
ee422142f4 MIPS: add initial infrastructure for Broadcom MIPS SoCs
CFE checks CPU Thread in a different way (using register $22):
mfc0	t1, C0_BCM_CONFIG, 3 # $22
li	t2, CP0_CMT_TPID # (1 << 31)
and	t1, t2
bnez	t1, 2f	# if we are running on thread 1, skip init
nop

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 16:16:09 +02:00
Daniel Schwierzeck
5f9cc363ed MIPS: add tune for MIPS 34kc
Add tune Kconfig option for MIPS 34kc.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-05-31 09:38:11 +02:00
Marek Vasut
ecc9d26062 mips: Allow overriding start.S in SPL
Certain chips, like the JZ47xx, have extreme size constraints on the
SPL size and require custom start.S . Allow overriding the start.S
the same way ARM MXS does it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
2016-05-26 01:34:14 +02:00
Paul Burton
c52ebea1cc MIPS: Support for targetting MIPSr6
Add support for targetting MIPS32r6 & MIPS64r6 systems, in the same way
that we currently select release 1 or release 2 targets. MIPSr6 is not
entirely backwards compatible with earlier releases of the architecture.
Some instructions are encoded differently, some are removed, some are
reused, so it is not practical to run U-Boot built for earlier revisions
on a MIPSr6 system. Update their Kconfig help text to reflect that.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2016-05-21 01:36:39 +02:00
Marek Vasut
0a0a958b68 mips: Add MIPS 74Kc tune
Add MIPS 74Kc tune Kconfig option.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Wills Wang <wills.wang@live.com>
[added missing tune-y entry in arch/mips/Makefile]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-05-21 01:36:38 +02:00
Wills Wang
1d3d0f1f1c mips: add base support for QCA/Atheros ath79 SOCs
This patch add some common code for QCA/Atheros ath79 SOCs such as
DDR tuning, chip reset and CPU detection.

Signed-off-by: Wills Wang <wills.wang@live.com>
2016-05-21 01:25:50 +02:00
Purna Chandra Mandal
32c1a6eef8 MIPS: initial infrastructure for Microchip PIC32 architecture
Create initial directory, Kconfigs needed for PIC32 architecture
support. Also add PIC32 specific register definition required for drivers.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-01 22:14:00 +01:00
Daniel Schwierzeck
23ff8633fd MIPS: sync I/O related header files with linux-4.4
Mainly sync asm/io.h to get a working ioremap() implementation
as well as the full set of I/O accessors. Pull in additional
header files to make this work.

Furthermore port over the directory 'arch/mips/include/asm/mach-generic/'
with contains default definitions for I/O and memory spaces and default
implementations for mapping those spaces. All files in that directory
can be overwritten by a SoC/machine.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-01-16 21:06:46 +01:00
Daniel Schwierzeck
0315a28909 MIPS: Kconfig: optimize gcc -march and -mtune setup
Move setup of -march to arch/mips/Makefile and follow the design on ARM.
Also add a possibility to chose specific CPU tune options.

Signed-off-by: Wills Wang <wills.wang@live.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-01-16 21:06:46 +01:00
Daniel Schwierzeck
6479b691d7 MIPS: Kconfig: refactor machine setup
Refactor machine setup like it is done on ARM. While on it,
also support "include <mach/file.h" for machine specific
header files.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-01-16 21:06:46 +01:00
Daniel Schwierzeck
eef88dfb3e MIPS: unify CPU code in arch/mips/cpu/
Unify and move code in arch/mips/cpu/mips[32|64]/ to arch/mips/cpu/.
The CPU specific config.mk files need to remain until
CONFIG_STANDALONE_LOAD_ADDR is converted to a global Kconfig symbol.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2015-01-30 14:19:58 +01:00
Daniel Schwierzeck
d9a4a6223c MIPS: move au1x00 SoC code to arch/mips/mach-au1x00
Move all au1x00 code out of arch/mips/cpu/mips32 to allow
unification of CPU code in a later patch. The reorganization
of the SoC specific header files will be done in a later patch
series.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
2015-01-30 14:19:58 +01:00
Daniel Schwierzeck
c57dafb5b4 MIPS: replace $(CPU) with Kconfig symbols
Conditionally set head-y and lib-y with boolean Kconfig symbols
for selected CPU. This deprecates the usage of the $(CPU) variable.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2015-01-21 14:06:04 +01:00
Daniel Schwierzeck
e19db555b4 Kbuild: introduce Makefile in arch/$ARCH/
Introduce a Makefile under arch/$ARCH/ and include it in the
top Makefile (similar to Linux kernel). This allows further
refactoringi like moving architecture-specific code out of global
makefiles, deprecating config variables (CPU, CPUDIR, SOC) or
deprecating arch/$ARCH/config.mk.

In contrary to Linux kernel, U-Boot defines the ARCH variable by
Kconfig, thus the arch Makefile can only included conditionally
after the top config.mk.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-08 09:35:45 -05:00