Commit graph

14 commits

Author SHA1 Message Date
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