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  1. 03 4月, 2015 6 次提交
    • A
      arc: re-generate defconfigs · 97ee47bd
      由 Alexey Brodkin 提交于 
      Before that moment our defconfigs were manually modified with addition
of new options. That means once anybody wants to add another option and
re-genarate defconfig with "make defconfig" there will be lots of
differences. So to make future modifications more clean we'll do bulk
re-generation right away.
Signed-off-by: NAlexey Brodkin <abrodkin@synopsys.com>
      97ee47bd
    • A
      arc: clean-up init procedure · 3fb80163
      由 Alexey Brodkin 提交于 
      Intention behind this work was elimination of as much assembly-written
code as it is possible.

In case of ARC we already have relocation fix-up implemented in C so why
don't we use C for U-Boot copying, .bss zeroing etc.

It turned out x86 uses pretty similar approach so we re-used parts of
code in "board_f.c" initially implemented for x86.

Now assembly usage during init is limited to stack- and frame-pointer
setup before and after relocation.
Signed-off-by: NAlexey Brodkin <abrodkin@synopsys.com>
Cc: Simon Glass <sjg@chromium.org>
      3fb80163
    • A
      arc: move low-level interrupt and exception handlers in a separate file · 8ee28251
      由 Alexey Brodkin 提交于 
      This separation makes maintenance of code easier because those low-level
interrupt- or exception handling routines are pretty static and usually
require not much care while start-up code is a subject of modifications
and enhancements.
Signed-off-by: NAlexey Brodkin <abrodkin@synopsys.com>
      8ee28251
    • A
      arc: merge common start-up code between ARC and ARCv2 · 4d93617d
      由 Alexey Brodkin 提交于 
      Even though ARCompact and ARCv2 are not binary compatible most of
assembly instructions are used in both. With this change we'll get rid
of duplicate code.

Still IVTs are implemented differently so we're keeping them in separate
files.
Signed-off-by: NAlexey Brodkin <abrodkin@synopsys.com>
      4d93617d
    • A
      arc: cache - build invalidate_icache_all() and invalidate_dcache_all() · ae4a351a
      由 Alexey Brodkin 提交于 
      always

Make both invalidate_icache_all() and invalidate_dcache_all() available
even if U-Boot is configured with CONFIG_SYS_DCACHE_OFF and/or
CONFIG_SYS_ICACHE_OFF.

This is useful because configuration of U-Boot may not match actual
hardware features. Real board may have cache(s) but for some reason we
may want to run U-Boot with cache(s) disabled (for example if some
peripherals work improperly with existing drivers if data cache is
enabled). So board may start with cache(s) enabled (that's the case for
ARC cores with built-in caches) but early in U-Boot we disable cache(s)
and make sure all contents of data cache gets flushed in RAM.
Signed-off-by: NAlexey Brodkin <abrodkin@synopsys.com>
      ae4a351a
    • A
      serial/serial_arc: set registers address during compilation · 36d68668
      由 Alexey Brodkin 提交于 
      Being global variable with 0 value it falls into .bss area which we may
only use after relocation to RAM. And right afetr relocation we zero
.bss - effectively cleaing register address set for early console.

Now with pre-set value "regs" variable is no longer in .bss and this way
safely survives relocation.
Signed-off-by: NAlexey Brodkin <abrodkin@synopsys.com>
      36d68668
  3. 01 4月, 2015 15 次提交
  5. 31 3月, 2015 12 次提交
  7. 30 3月, 2015 7 次提交