u-boot.git/arch/mips/cpu, branch v2011.12

consolidate mdelay by providing a common function for all users

2011-10-21T23:16:08+00:00

There are several mdelay() definitions in the driver and
board code. Remove them all and provide a common mdelay()
in lib/time.c.

Signed-off-by: Anatolij Gustschin 
Acked-by: Mike Frysinger

MIPS: Ingenic XBurst Jz4740 processor support

2011-10-10T13:06:12+00:00

Jz4740 is a multimedia application processor targeting for mobile
devices like e-Dictionary, eBook, portable media player (PMP) and
GPS navigator.  Jz4740 is powered by Ingenic 360 MHz XBurst CPU core
(JzRISC), in which RISC/SIMD/DSP hybrid instruction set architecture
provides high integration, high performance and low power consumption.

JzRISC incorporated in Jz4740 is the advanced and power-efficient
32-bit RISC core, compatible with MIPS32, with 16K I-Cache and 16K
D-Cache, and can operate at speeds up to 400 MHz.

On-chip modules such as LCD controller, embedded audio codec, multi-
channel SAR-ADC, AC97/I2S controller and camera I/F offer a rich
suite of peripherals for multimedia application.  NAND controller
(SLC/MLC), USB (host 1.1 and device 2.0), UART, I2C, SPI, etc. are
also available.

For more info about Ingenic XBurst Jz4740:
  http://en.ingenic.cn/eng/
  http://www.linux-mips.org/wiki/Ingenic

This patch introduces XBurst CPU support in U-Boot.  It's compatible
with MIPS32, but requires a bit different cache maintenance, timer
routines, and boot mechanism using USB boot tool, so XBurst support
can go into a separate new home, cpu/xburst/.

Signed-off-by: Xiangfu Liu 
Acked-by: Daniel 
Signed-off-by: Shinya Kuribayashi

MIPS: mips32: fix wrong loop bound in flush_cache()

2011-09-03T01:43:45+00:00

The issue is found when calling flush_cache() with zero "size" argument.
The bound of loop is miscalculated in this case and flush_cache() enters
a wrong flushing loop.

Signed-off-by: Yao Cheng 
Cc: Shinya Kuribayashi 
Cc: Sergei Shtylyov 
Cc: Mike Frysinger 
Signed-off-by: Shinya Kuribayashi

MIPS: make cache operation mode configurable

2011-07-31T14:26:41+00:00

Currently the cache operation mode is hard-coded to
CONF_CM_CACHABLE_NONCOHERENT. This is not appropiate for CPUs or SOCs
which operate at a different mode.

This patch makes the cache operation mode configurable via board config.

Signed-off-by: Daniel Schwierzeck 
Acked-by: Thomas Langer 
Signed-off-by: Shinya Kuribayashi

MIPS: rename INFINEON_EBU_BOOTCFG to CONFIG_SYS_XWAY_EBU_BOOTFG

2011-07-31T14:26:41+00:00

This define is a board-specific config option and should be
renamed to follow the U-Boot naming convention. Additionally,
add an explaining comment for this option.

Signed-off-by: Daniel Schwierzeck 
Acked-by: Thomas Langer 
Signed-off-by: Shinya Kuribayashi

Timer: Remove reset_timer() for non-Nios2 arches

2011-07-26T12:53:30+00:00

Timer: Remove set_timer completely

2011-07-26T12:52:17+00:00

MIPS: Move timer code to arch/mips/cpu/$(CPU)/

2011-05-09T15:12:31+00:00

Current timer routines (arch/mips/lib/timer.c) are implemented assuming
that MIPS32 coprocessor (CP0) resources, Counter and Compare registers
in this case, are available.  But this doesn't always work.

We need to make sure that all MIPS-based systems don't necessarily use
CP0 counter/compare registers as time keeping resources.  And some MIPS
variant processors might come with different hardware specs with genuine
MIPS32 CP0 registers.

With this change, each $(CPU)/ directory can have its own timer code.

Signed-off-by: Shinya Kuribayashi

MIPS: Coding style cleanups on common assembly files

2011-05-06T15:18:13+00:00

Fix style issues and alignments globally.  No logical changes.
- Replace C comments with AS line comments where possible
- Use ifndef where possible, rather than if !defined for simplicity
- An instruction executed in a delay slot is now indicated by a leading
  space, not by C comment

Signed-off-by: Shinya Kuribayashi

MIPS: Remove mips_cache_lock() feature

2011-05-06T15:18:13+00:00

As requested in commit e1390801a3c1a2b6d12fa90be368efc19f5b9bfd ([MIPS]
Request for the 'mips_cache_lock()' removal), such feature is no longer
needed for current MIPS implementation of U-Boot, and no one in the tree
uses it for years.

Signed-off-by: Shinya Kuribayashi