Commit graph

241 commits

Author SHA1 Message Date
Michal Simek
e945f6dc28 microblaze: Move architecture to use generic board init
Compile code with -fPIC to get GOT. Do not build SPL
with fPIC because it increasing SPL size for nothing.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:11:56 +01:00
Andreas Bießmann
61d7b1bb5f common/board_r: manual relocation for cmd table
This is required for architectures still need manual relocation like avr32, mk68
and others.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:42 +01:00
Masahiro Yamada
0365ffcc0b generic-board: show model name in board_init_f() too
The common/board_r.c has show_model_r() to display the model name
if the DTB has a "model" property.  It sounds useful to have a similar
function in common/board_f.c too because most of the boards show
their board name before relocation.

Instead of implementing the same function in both common/board_f.c
and common/board_r.c, let's split it up into common/show_board_info.c.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:49 -07:00
Thierry Reding
1dfdd9ba4e ARM: Implement non-cached memory support
Implement an API that can be used by drivers to allocate memory from a
pool that is mapped uncached. This is useful if drivers would otherwise
need to do extensive cache maintenance (or explicitly maintaining the
cache isn't safe).

The API is protected using the new CONFIG_SYS_NONCACHED_MEMORY setting.
Boards can set this to the size to be used for the non-cached area. The
area will typically be right below the malloc() area, but architectures
should take care of aligning the beginning and end of the area to honor
any mapping restrictions. Architectures must also ensure that mappings
established for this area do not overlap with the malloc() area (which
should remain cached for improved performance).

While the API is currently only implemented for ARM v7, it should be
generic enough to allow other architectures to implement it as well.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-12-18 13:19:21 -07:00
Tom Rini
0fffbd26d5 Merge branch 'master' of git://git.denx.de/u-boot-uniphier 2014-12-08 16:35:05 -05:00
Masahiro Yamada
36da51ebac powerpc: mpc8xx: remove hermes board support
This board sprinkles #ifdef(CONFIG_HERMES) over various global files
such as include/common.h, common/board_r.c, common/cmd_bdinfo.c.
Let's zap such an ill-behaved board.

It has not been converted to generic board yet and mpc8xx is old
enough.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
2014-12-08 09:35:43 -05:00
Masahiro Yamada
70879a9256 flash: do not fail even if flash_size is zero
CONFIG_SYS_MAX_FLASH_BANKS_DETECT allows to determine the number of
flash banks at run-time, that is, there is a possibility that no flash
bank is found.  Even in such cases, it makes sense to continue the
boot process without any flash device.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Stefan Roese <sr@denx.de>
2014-12-08 01:25:28 +09:00
Bin Meng
d51457583f x86: Remove unnecessary call to initr_enable_interrupts()
Actually initr_enable_interrupts() was never called in an x86 build
due to it was wrapped by CONFIG_x86 (typo of X86).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2014-11-25 06:34:02 -07:00
Bin Meng
a549f7497b x86: Remove cpu_init_r() for x86
Since cpu_init_interrupts() was moved out of cpu_init_r(), it is
useless to keep cpu_init_r() for x86, thus remove it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2014-11-25 06:34:02 -07:00
Simon Glass
65990d5680 x86: Remove board_early_init_r()
This function is not needed. Remove it to improve the generic init sequence
slightly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-11-25 06:33:59 -07:00
Simon Glass
c9356be307 dm: Split the simple malloc() implementation into its own file
The simple malloc() implementation is used when memory is tight. It provides
a simple buffer with an incrementing pointer.

At present the implementation is inside dlmalloc. Move it into its own file
so that it is easier to find.

Rather than using relocation as a signal that the full malloc() is
available, add a special GD_FLG_FULL_MALLOC_INIT flag. This signals that the
simple malloc() should no longer be used.

In some cases, such as SPL, even the code space used by the full malloc() is
wasteful. Add a CONFIG_SYS_MALLOC_SIMPLE option to provide only the simple
malloc. In this case the full malloc is not available at all. It saves about
1KB of code space and about 0.5KB of data on Thumb 2.

Acked-by: Tom Rini <trini@ti.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21 08:12:28 +01:00
Jeroen Hofstee
2588ba14db common: board_r: make local functions static
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-25 07:02:00 -04:00
Jeroen Hofstee
dd2a6cd0f7 common: board: use __weak
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-24 16:04:59 -04:00
Simon Glass
ebe76a2df9 dm: Remove spi_init() from board_r.c when using driver model
Driver model does its own init, so we don't need this.

There is still a call in board_f.c but it is only enabled by CONFIG_HARD_SPI.
It is easy enough to disable that option when converting boards which use
it to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-10-22 10:36:47 -06:00
Valentin Longchamp
ae1a74ebe7 common/board_r: remove warning in initr_mem for 64-bit phys_size_t
Since on powerpc phys_size_t can be unsigned long long, this printout
line can result in a not nice compile warning.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-10 09:44:45 -04:00
York Sun
fef3e25fc3 common/board_r: Fix booting issue on T4240QDS
Commit 294b91a581 moved initr_malloc
earlier than initr_unlock_ram_in_cache. This causes issue on T4240.
It may be related to locked L1 d-cache and unlocked L2 cache. D-
cache could and should be unlock earlier for normal operation.

This patch moves initr_unlock_ram_in_cache before initr_malloc. It
has been verified on the following boards, in which only T4240QDS
suffered and has been since fixed: T4240QDS, T2080QDS, P5040DS,
P4080DS, MPC8572DS, MPC8536DS, MPC8641HPCN, B4860QDS.

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Scott Wood <scottwood@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-10 09:44:41 -04:00
Tom Rini
8d028d404f Merge branch 'master' of git://git.denx.de/u-boot-dm 2014-09-13 16:32:52 -04:00
Simon Glass
9fb02491fe dm: Make driver model available before board_init()
For some boards board_init() will change GPIOs, so we need to have driver
model available before then. Adjust the board init to arrange this, but
enable it for driver model only, just to be safe.

This does create additional #ifdef logic, but it is safer than trying to
make a pervasive change which may cause some boards to break.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-09-10 12:59:58 -06:00
Simon Glass
294b91a581 Set up stdio earlier when using driver model
Since driver model registers itself with the stdio subsystem, and we
want to avoid delayed registration and other complexity associated with
the current serial console, move the stdio subsystem init earlier when
driver model is used for serial.

This simplifies the implementation. Should there be any problems with
this approach they can be dealt with as boards are converted over to
use driver model for serial.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-09-10 12:59:58 -06:00
Jeroen Hofstee
47a602eab4 board_r: ARM[64] do not set gd again
For ARM / ARM64 the relocation routines already updated
gd to the new value. Don't set it again. This allows
compilation with clang as it cannot update gd directly.

cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-09-09 13:50:45 +02:00
Thomas Chou
5ff10aa7e7 nios2: add generic board support
This patch implements the generic board init as described in
doc/README.generic-board.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2014-08-24 11:28:10 +08:00
Ian Campbell
19ad527d8c board_r: Add missing return to initr_doc
I happened to spot this while working in the area.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
2014-08-09 11:17:02 -04:00
Simon Glass
ab7cd62790 dm: Support driver model prior to relocation
Initialise devices marked 'pre-reloc' and make them available prior to
relocation. Note that this requires pre-reloc malloc() to be available.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 14:07:24 +01:00
Simon Glass
00606d7e39 dm: Allow drivers to be marked 'before relocation'
Driver model currently only operates after relocation is complete. In this
state U-Boot typically has a small amount of memory available. In adding
support for driver model prior to relocation we must try to use as little
memory as possible.

In addition, on some machines the memory has not be inited and/or the CPU
is not running at full speed or the data cache is off. These can reduce
execution performance, so the less initialisation that is done before
relocation the better.

An immediately-obvious improvement is to only initialise drivers which are
actually going to be used before relocation. On many boards the only such
driver is a serial UART, so this provides a very large potential benefit.

Allow drivers to mark themselves as 'pre-reloc' which means that they will
be initialised prior to relocation. This can be done either with a driver
flag or with a 'dm,pre-reloc' device tree property.

To support this, the various dm scanning function now take a 'pre_reloc_only'
parameter which indicates that only drivers marked pre-reloc should be
bound.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 14:07:24 +01:00
Simon Glass
d59476b644 Add a simple malloc() implementation for pre-relocation
If we are to have driver model before relocation we need to support some
way of calling memory allocation routines.

The standard malloc() is pretty complicated:

1. It uses some BSS memory for its state, and BSS is not available before
relocation

2. It supports algorithms for reducing memory fragmentation and improving
performace of free(). Before relocation we could happily just not support
free().

3. It includes about 4KB of code (Thumb 2) and 1KB of data. However since
this has been loaded anyway this is not really a problem.

The simplest way to support pre-relocation malloc() is to reserve an area
of memory and allocate it in increasing blocks as needed. This
implementation does this.

To enable it, you need to define the size of the malloc() pool as described
in the README. It will be located above the pre-relocation stack on
supported architectures.

Note that this implementation is only useful on machines which have some
memory available before dram_init() is called - this includes those that
do no DRAM init (like tegra) and those that do it in SPL (quite a few
boards). Enabling driver model preior to relocation for the rest of the
boards is left for a later exercise.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 14:05:40 +01:00
Ian Campbell
2c997e7a8f board_r: run scsi init() on ARM too
This has been disabled for ARM in initr_scsi since that function was
introduced. However it works fine for me on Cubieboard and Cubietruck (with the
upcoming AHCI glue patch).

I also tested on two random ARM platforms which seem to define CONFIG_CMD_SCSI:
 - highbank worked fine (on midway hardware)
 - omap5_uevm built OK and I confirmed using objdump that things were as
   expected (i.e. the default weak scsi_init nop was used).

While there remove the mismatched comment from the #endif (omitting the comment
seems to be the prevailing style in this file).

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Simon Glass <sjg@chromium.org>
2014-07-22 07:44:28 -04:00
Simon Glass
9272a9b4f6 m68k: powerpc: Clean up do_mdm_init
This code seems unnecessarily complex. We really just need to check the
global_data. Now that is it all in one place, and not arch-specific, this
is pretty easy.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-05-29 17:49:33 -04:00
Paul Burton
c4474fc880 board_r: return 0 from show_model_r
The show_model_r function should return an int but didn't. Return 0 to
indicate inevitable success and avoid the following if it is used:

common/board_r.c: In function 'show_model_r':
common/board_r.c:531:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-04-18 10:42:30 -04:00
Simon Glass
1ce6017679 dm: Set up driver model after relocation
Make driver model available after relocation, by setting up data structures
and scanning for devices using compiled-in platform_data and (when available)
the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-03-04 12:15:29 -05:00
Albert ARIBAUD
b60eff31f3 arm: remove unneeded symbol offsets and _TEXT_BASE
Remove the last uses of symbol offsets in ARM U-Boot.
Remove some needless uses of _TEXT_BASE.
Remove all _TEXT_BASE definitions.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2014-02-26 21:18:12 +01:00
Alexey Brodkin
7395398ad2 board_r - fixup functions table after relocation
This is only required for "PIC" relocation and doesn't apply to modern
"PIE" relocation which does data relocation as well as code.

"init_sequence_r" is just an array that consists of compile-time
adresses of init functions. Since this is basically an array of integers
(pointers to "void" to be more precise) it won't be modified during
relocation - it will be just copied to new location as it is.

As a consequence on execution after relocation "initcall_run_list" will
be jumping to pre-relocation addresses. As long as we don't overwrite
pre-relocation memory area init calls are executed correctly. But still
it is dangerous because after relocation we don't expect initially used
memory to stay untouched.

Cc: Tom Rini <trini@ti.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Thomas Langer <thomas.langer@lantiq.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2014-01-27 08:28:13 -05:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Simon Glass
71c52dba2b Add trace support to generic board
Add hooks for tracing to generic board, including:

- allow early tracing to start early as possible in U-Boot
- reserve memory for trace buffer
- copy early trace buffer to main trace buffer after relocation
- setup full tracing support after relocation

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-06-26 10:16:41 -04:00
Masahiro Yamada
a0ba279ac6 generic_board: reduce the redundancy of gd_t struct members
This commit refactors common/board_f.c and common/board_r.c
in order to delete the dest_addr and dest_addr_sp from
gd_t struct.

As mentioned as follows in include/asm-generic/global_data.h,

  /* TODO: is this the same as relocaddr, or something else? */
  unsigned long dest_addr;        /* Post-relocation address of U-Boot */

dest_addr is the same as relocaddr.
Likewise, dest_addr_sp is the same as start_addr_sp.

It seemed dest_addr/dest_addr_sp was used only as a scratch variable
to calculate relocaddr/start_addr_sp, respectively.

With a little refactoring, we can delete dest_addr and dest_addr_sp.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
2013-06-07 14:17:01 -04:00
Doug Anderson
158e7d059c Call bootstage_relocate() after malloc is initted
In a previous CL we added the bootstage_relocate(), which should be
called after malloc is initted.  Now we call it on generic board.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2013-05-13 13:33:21 -07:00
Simon Glass
a733b06b69 sandbox: Switch over to generic board
Add generic board support for sandbox. and remove the old board init code.

Select CONFIG_SYS_GENERIC_BOARD for sandbox now that this is supported.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
2013-05-01 11:17:21 -04:00
Simon Glass
7525c2dac7 x86: Allow setup code to manage its own global data
Currently x86 has its own means of managing the global data and board data
(bd_t), and this code resides in start.S. With generic board, we need to
ensure that we leave this alone - i.e. don't clear it as we do on other
archs.

This fixes a problem where the memory init data is cleared which causes
the video driver to operate very slowly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-15 16:26:41 -07:00
Simon Glass
e424c15c1f x86: Enable generic board support
This enables generic board support so that x86 boards can define
CONFIG_SYS_GENERIC_BOARD.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:14:00 -04:00
Simon Glass
be274b99ab x86: Adjust board_r.c for x86
For x86 the global_data is managed entirely by the start.S code so we do
not need to touch it. However, we do have some more initcalls to add.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:14:00 -04:00
Simon Glass
c2240d4dbe Adjust board_r.c for ppc
This adds ppc features to the generic post-relocation board init.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:14:00 -04:00
Simon Glass
6f6430d72b Introduce generic post-relocation board_r.c
This file handles common post-relocation init for boards which use
the generic framework.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:13:59 -04:00