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  1. Nov 26, 2012
    • Scott Wood's avatar
      spl/85xx: new SPL support · c97cd1ba
      Scott Wood authored 
      
Update CONFIG_RAMBOOT and CONFIG_NAND_SPL references to accept CONFIG_SPL
and CONFIG_SPL_BUILD, respectively.  CONFIG_NAND_SPL can be removed once
the last mpc85xx nand_spl target is gone.

CONFIG_RAMBOOT will need to remain for other use cases, but it doesn't
seem right to overload it for meaning SPL as well as nand_spl does.  Even
if it's somewhat appropriate for the main u-boot, the SPL itself isn't
(necessarily) ramboot, and we don't have separate configs for SPL and
main u-boot.  It was also inconsistent, as other platforms such as
mpc83xx didn't use CONFIG_RAMBOOT in this way.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
      c97cd1ba
    • Scott Wood's avatar
      spl/powerpc: introduce CONFIG_SPL_INIT_MINIMAL · 4b919725
      Scott Wood authored 
      
cpu_init_nand.c is renamed to spl_minimal.c as it is not really NAND-specific.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
---
v2: factor out START, and change cpu_init_nand.c to spl_minimal.c
Cc: Andy Fleming <afleming@freescale.com>
      4b919725
    • Scott Wood's avatar
      powerpc/mpc85xx: consistently use COBJS-y · a179eb0a
      Scott Wood authored 
      
A subsequent patch will conditionalize some of the files that are
currently unconditional.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
      a179eb0a
    • Scott Wood's avatar
      spl/mpc85xx: rename cpu_init_nand.c to spl_minimal.c · b9735cba
      Scott Wood authored 
      
There is nothing really NAND-specific about this file.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
      b9735cba
    • Scott Wood's avatar
      spl: include resetvec and lib8xxx · 510ed3b8
      Scott Wood authored 
      
The toplevel makefile hardcodes this stuff, so spl/Makefile needs to as well.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
      510ed3b8
    • Scott Wood's avatar
      spl/mpc85xx: move udelay to cpu code · 59629c28
      Scott Wood authored 
      
It applies to non-Freescale 85xx boards as well as Freescale boards,
so it doesn't belong in board/freescale.  Plus, it needs to come out
of nand_spl if it's to be used by the new SPL.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
      59629c28
    • Scott Wood's avatar
      powerpc/mpc8xxx: move LAW code into arch/powerpc/cpu/mpc8xxx · 8bc50f0b
      Scott Wood authored 
      
It's arch code and not a driver, so move it where it belongs.  When it
originally went into drivers/misc there was no 8xxx CPU directory.

This will make new-SPL support a little easier since we can keep the CPU
stuff together and not need to pull stuff in from drivers/misc.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
      8bc50f0b
    • Scott Wood's avatar
      powerpc/mpc85xx: fix TLB alignment · 7f0a22ff
      Scott Wood authored 
      
In the RAMBOOT/SPL case we were creating a TLB entry starting at
CONFIG_SYS_MONITOR_BASE, and just hoping that the base was properly
aligned for the TLB entry size.  This turned out to not be the case
with NAND SPL because the main U-Boot starts at an offset into the image
in order to skip the SPL itself.

Fix the TLB entry to always start at a proper alignment.  We still assume that
CONFIG_SYS_MONITOR_BASE doesn't start immediately before a large-page boundary
thus requiring multiple TLB entries.

Signed-off-by: default avatarScott Wood <scottwood@frescale.com>
Cc: Andy Fleming <afleming@freescale.com>
      7f0a22ff
    • Scott Wood's avatar
      powerpc: change .fixup test to a GCC version test · 6ec63f41
      Scott Wood authored 
      
This was introduced by commit 24461519, but it
fails in a minimal SPL build where the only thing in arch/powerpc/lib is
cache.c, which apparently doesn't generate any fixup records.

The problem is reported to occur with GCC 3.x, so insist on GCC 4.0 or newer.
Patterned after checkthumb as suggested by Tom Rini.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Tom Rini <trini@ti.com>
--
v2: test gcc version instead of testing nothing
      6ec63f41
    • Scott Wood's avatar
      spl: introduce CONFIG_SPL_TARGET · ca2fca22
      Scott Wood authored 
      
Currently the SPL target is specified in a CPU-specific makefile
fragment.  While some targets may need something more complicated than a
simple target name, targets which don't need this shouldn't have to provide a makefile fragment just for this.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
---
v2: Removed default target as it's been pointed out to me how existing platforms
cause the SPL to be built.
      ca2fca22
    • Scott Wood's avatar
      spl: rename u-boot-pad.bin to u-boot-with-spl.bin · 5364add4
      Scott Wood authored 
      
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
      5364add4
    • José Miguel Gonçalves's avatar
      Add u-boot-pad.bin target to the Makefile · 277f00f5
      José Miguel Gonçalves authored 
      
Samsung's S3C24XX SoCs need this in order to generate a binary image
with a padded SPL concatenated with U-Boot.

Signed-off-by: default avatarJosé Miguel Gonçalves <jose.goncalves@inov.pt>
[scottwood@freescale.com: fixed prereq of u-boot.ubl]
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
--
v2: Removed spl/ prefix from u-boot.ubl prerequisite.
      277f00f5
    • Scott Wood's avatar
      powerpc/mpc85xx: add comma before "already enabled" · 9a511bd6
      Scott Wood authored 
      
Now outputs like this:

L2:    512 KB already enabled, moving to 0xf8f80000

rather than this:

L2:    512 KB already enabledmoving to 0xf8f80000

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
      9a511bd6
    • Scott Wood's avatar
      powerpc/mpc85xx: move debug tlb entry after TLB is in known state · f545d300
      Scott Wood authored 
      
Previously, in many if not all configs we were creating overlapping TLB entries
which is illegal.  This caused a crash during boot when moving p2020rdb NAND SPL
into L2 SRAM.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Cc: Prabhakar Kushwaha <prabhakar@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
--
Prabhakar, please test that debug still works.
      f545d300
    • Scott Wood's avatar
      serial/ns16550: wait for TEMT before initializing · cb55b332
      Scott Wood authored 
      
TEMT is set when the transmitter is totally empty and all output has
finished.

This prevents output problems (including a loss of synchronization
observed on p2020 that persisted for quite a while) if SPL has output
still on its way out.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
--
v2: fixed typo in subject, and explained what the bit does in the changelog
      cb55b332
    • Scott Wood's avatar
      serial/ns16550: don't build serial_ns16550 with MIN_FUNCTIONS · 48cbc3a8
      Scott Wood authored 
      
CONFIG_NS16550_MIN_FUNCTIONS is used by small SPLs to gain access to basic
ns16550 output code without pulling in things not needed by the SPL.

This previously only worked with non-MULTI configs.  Recently MULTI was
made mandatory, and MIN_FUNCTIONS fails like this:

drivers/serial/libserial.o: In function `calc_divisor.clone.0':
serial_ns16550.c:(.text.calc_divisor.clone.0+0x24): undefined reference to `get_bus_freq'
drivers/serial/libserial.o: In function `_serial_getc':
(.text._serial_getc+0x30): undefined reference to `NS16550_getc'
drivers/serial/libserial.o: In function `_serial_tstc':
(.text._serial_tstc+0x30): undefined reference to `NS16550_tstc'
drivers/serial/libserial.o: In function `_serial_setbrg':
(.text._serial_setbrg+0x3c): undefined reference to `NS16550_reinit'
make[1]: *** [/tmp/u-boot/spl/u-boot-spl] Error 1
make: *** [/tmp/u-boot/spl/u-boot-spl.bin] Error 2

With MIN_FUNCTIONS we don't need anything from this file, so don't build
it.  The conditional needs to be in the file itself rather than the
makefile, because the config symbols are only imported to the makefiles
once, not separately for the SPL phase of the build.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
      48cbc3a8
  3. Nov 19, 2012
  5. Nov 14, 2012