Commit graph

58 commits

Author SHA1 Message Date
Tom Rini
6e7df1d151 global: Finish CONFIG -> CFG migration
At this point, the remaining places where we have a symbol that is
defined as CONFIG_... are in fairly odd locations. While as much dead
code has been removed as possible, some of these locations are simply
less obvious at first. In other cases, this code is used, but was
defined in such a way as to have been missed by earlier checks.  Perform
a rename of all such remaining symbols to be CFG_... rather than
CONFIG_...

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-01-20 12:27:24 -05:00
Tom Rini
aa6e94deab global: Move remaining CONFIG_SYS_SDRAM_* to CFG_SYS_SDRAM_*
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05 16:06:07 -05:00
Bin Meng
ea253ad7b5 treewide: Remove the unnecessary space before semicolon
%s/return ;/return;

Signed-off-by: Bin Meng <bmeng@tinylab.org>
2022-11-02 13:58:17 -04:00
Simon Glass
d9d7c20b73 treewide: Drop bootm_headers_t typedef
This is not needed and we should avoid typedefs. Use the struct instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:57 -04:00
Stefan Roese
29caf9305b cyclic: Use schedule() instead of WATCHDOG_RESET()
Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
2022-09-18 10:26:33 +02:00
Ashok Reddy Soma
65168910ad zynqmp: Run board_get_usable_ram_top() only on main U-Boot
With commit ce39ee28ec ("zynqmp: Do not place u-boot to reserved memory
location"), the function board_get_usable_ram_top() is allocating
MMU_SECTION_SIZE of about 2MB using lmb_alloc(). But we dont have this
much memory in case of mini U-Boot.

Keep these functions which use lmb under CONFIG_LMB so that they are
compiled and used only when LMB is enabled.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/75e52def75f573e554a6b177a78504c128cb0c4a.1657183534.git.michal.simek@amd.com
2022-07-26 08:23:54 +02:00
Pali Rohár
66b2dd9ac3 powerpc: bootm: Fix sizes in memory adjusting warning
Old size is stored in size variable and new size is in bootm_size variable.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-06-20 15:52:45 +08:00
Tom Rini
3db7b2bb4c powerpc: Remove unused MPC8540/60ADS code
Remove some code, primarily CPM2 related, that is now unused since the
removal of MPC8540/60ADS.

Fixes 3913191c8a ("powerpc: mpc8540ads: mpc8560ads: Drop support for MPC8540/60ADS")
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-03-03 16:51:19 -05:00
Marek Vasut
1f391c3454 lmb: Switch to generic arch_lmb_reserve_generic()
Switch arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() to
arch_lmb_reserve_generic().

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
2021-09-23 14:15:32 -04:00
Simon Glass
401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00
Stefan Roese
e207f2256f global: Move from bi_memstart/memsize -> gd->ram_base/ram_size
With the planned removal of bi_memstart & bi_memsize, this patch now
moves the references to the better suiting gd->ram_base/ram_size
variables.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-26 09:19:34 +02:00
Masahiro Yamada
b75d8dc564 treewide: convert bd_t to struct bd_info by coccinelle
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>

  #include <asm/u-boot.h>
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  <smpl>
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-07-17 09:30:13 -04:00
Simon Glass
f7ae49fc4f common: Drop log.h from common header
Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:18 -04:00
Simon Glass
3c7dded8e1 Fix some checkpatch warnings in calls to debug()
Fix up some incorrect code style in calls to functions in the log.h
header, mostly debug().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 18:36:57 -04:00
Simon Glass
0914011310 command: Remove the cmd_tbl_t typedef
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.

Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.

This requires quite a few header-file additions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 18:36:55 -04:00
Simon Glass
4d72caa5b9 common: Drop image.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
52f2423804 common: Drop bootstage.h from common header
Move this fairly uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
9b4a205f45 common: Move RAM-sizing functions to init.h
These functions relate to memory init so move them into the init
header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-01-17 14:02:35 -05:00
Simon Glass
1eb69ae498 common: Move ARM cache operations out of common.h
These functions are CPU-related and do not use driver model. Move them to
cpu_func.h

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:24:58 -05:00
Simon Glass
e7dcf5645f env: Drop environment.h header file where not needed
This header file is now only used by files that access internal
environment features. Drop it from various places where it is not needed.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
Simon Glass
7b51b576d6 env: Move env_get() to env.h
Move env_get() over to the new header file.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Masahiro Yamada
b08c8c4870 libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>
Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.

This commit moves the header code:
  include/libfdt.h         -> include/linux/libfdt.h
  include/libfdt_env.h     -> include/linux/libfdt_env.h

and replaces include directives:
  #include <libfdt.h>      -> #include <linux/libfdt.h>
  #include <libfdt_env.h>  -> #include <linux/libfdt_env.h>

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-05 10:16:28 -05:00
Alexey Brodkin
4280342adb fdt: Implement weak arch_fixup_fdt()
Only ARM and in some configs MIPS really implement arch_fixup_fdt().
Others just use the same boilerplate which is not good by itself,
but what's worse if we try to build with disabled CONFIG_CMD_BOOTM
and enabled CONFIG_OF_LIBFDT we'll hit an unknown symbol which was
apparently implemented in arch/xxx/lib/bootm.c.

Now with weak arch_fixup_fdt() right in image-fdt.c where it is
used we get both items highlighted above fixed.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: York Sun <york.sun@nxp.com>
Cc: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-02-18 12:53:38 -07:00
Simon Glass
723806cc5b env: Rename some other getenv()-related functions
We are now using an env_ prefix for environment functions. Rename these
other functions as well, for consistency:

   getenv_vlan()
   getenv_bootm_size()
   getenv_bootm_low()
   getenv_bootm_mapsize()
   env_get_default()

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:31:11 -04:00
Simon Glass
00caae6d47 env: Rename getenv/_f() to env_get()
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.

Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:30:24 -04:00
Christophe Leroy
08dd988be5 powerpc, 8xx: fix missing function declarations.
Add missing .h and add missing declarations in .h
Declare local functions as static.  Make interrupt_init_cpu function
signatures consistent with how decrementer_count is declared.

Based on warnings reported by 'make C=2'

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[trini: drop cpu_init_f as 8xx/83xx are different from the rest, rework
interrupt_init_cpu/decrementer_count]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-07-23 09:23:29 -04:00
Heiko Schocher
064b55cfcb powerpc, 5xxx, 512x: remove support for mpc5xxx and mpc512x
There was for long time no activity in the mpx5xxx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in mpc5xxx,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16 10:14:55 -04:00
Masahiro Yamada
63c0941726 libfdt: replace ARCH_FIXUP_FDT with ARCH_FIXUP_FDT_MEMORY
Commit e2f88dfd2d ("libfdt: Introduce new ARCH_FIXUP_FDT option")
allows us to skip memory setup of DTB, but a problem for ARM is that
spin_table_update_dt() and psci_update_dt() are skipped as well if
CONFIG_ARCH_FIXUP_FDT is disabled.

This commit allows us to skip only fdt_fixup_memory_banks() instead
of the whole of arch_fixup_fdt().  It will be useful when we want to
use a memory node from a kernel DTB as is, but need some fixups for
Spin-Table/PSCI.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Simon Glass <sjg@chromium.org>
Fixed build error for x86:
Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-02 20:54:34 -07:00
Masahiro Yamada
b41411954d linux/kernel.h: sync min, max, min3, max3 macros with Linux
U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does.  This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.

Many of references of those macros must be fixed to suppress warnings.
We have two options:
 - Use min, max, min3, max3 only when the arguments have the same type
   (or add casts to the arguments)
 - Use min_t/max_t instead with the appropriate type for the first
   argument

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini <trini@ti.com>
2014-11-23 06:48:30 -05:00
Mela Custodio
b892465dae bootstage: powerpc: support fdt stash and reporting
This implements stashing of bootstage timing data to FDT and automatic
timing reporting. To enable define CONFIG_BOOTSTAGE_FDT and
CONFIG_BOOTSTAGE_REPORT respectively.

Signed-off-by: Rommel G Custodio <sessyargc+u-boot@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-03-07 14:52:31 -08:00
York Sun
e38661634b common: Add get_effective_memsize() to memsize.c
This function has been around for powerpc. It is used for systems with
memory more than CONFIG_MAX_MEM_MAPPED. In case of non-contiguous memory,
this feature can limit U-boot to one block without going over the limit.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2014-02-21 11:06:13 -05:00
Miao Yan
871a57bb81 common/cmd_bootm: extend do_bootm_vxworks to support the new VxWorks boot interface.
The next version VxWorks adopts device tree (for PowerPC and ARM) as its hardware
description mechanism. For PowerPC, the boot interface conforms to
the ePAPR standard, which is:

   void (*kernel_entry)(ulong fdt_addr,
          ulong r4 /* 0 */,
          ulong r5 /* 0 */,
          ulong r6 /* EPAPR_MAGIC */, ulong r7 /* IMA size */,
          ulong r8 /* 0 */, ulong r9 /* 0 */)

For ARM, the boot interface is:

   void (*kernel_entry)(void *fdt_addr)

Signed-off-by: Miao Yan <miao.yan@windriver.com>
[trini: Fix build error when !CONFIG_OF_FDT is set, typo on PowerPC,
missing extern ft_fixup_num_cores]
Signed-off-by: Tom Rini <trini@ti.com>
2013-12-16 08:59:05 -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
Stefan Roese
ed12b5b9da Fix bootm to work on powerpc again (compressed uImage)
Patch 35fc84fa1 [Refactor the bootm command to reduce code duplication]
breaks booting Linux (compressed uImage with fdt) on powerpc.

boot_jump_linux() mustn't be called before boot_prep_linux() and
boot_body_linux() have been called. So remove the superfluous call
to boot_jump_linux() in arch/powerpc/lib/bootm.c as its called later on
in this function.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@ti.com>
2013-06-28 16:26:52 -04:00
Wolfgang Denk
d6ed322222 Power: remove support for Freescale MPC8220
The Freescale MPC8220 Power Architecture processors have long reached
EOL; Freescale does not even list these any more on their web site.

Remove the code to avoid wasting maitaining efforts on dead stuff.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Andy Fleming <afleming@gmail.com>
2013-05-15 08:41:03 -04:00
Simon Glass
3e51266a4e powerpc: Use image_setup_linux() instead of local code
Rather than having similar code in powerpc, use image_setup_linux() which
should be common across all architectures that use the FDT.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14 15:37:25 -04:00
Gerald Van Baren
58864ddc72 Clean up libfdt.h includes
The libfdt.h file is the definition file for libfdt.  It is unnecessary
to include other fdt header files (the necessary ones are pulled in
by libfdt.h).

Signed-off-by: Gerald Van Baren <gvb@unssw.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Stefan Roese <sr@denx.de>
2013-02-08 22:32:38 -05:00
Kim Phillips
12e06fe03f treewide: include libfdt_env.h before fdt.h
and, if including libfdt.h which includes libfdt_env.h in
the correct order, don't include fdt.h before libfdt.h.

this is needed to get the fdt type definitions set from
the project environment before fdt.h uses them.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Jerry Van Baren <gvb.uboot@gmail.com>
2013-02-07 20:38:55 -05:00
Stefan Roese
966b11c749 powerpc: Extract EPAPR_MAGIC constants into processor.h
By extracting these defines into a header, they can be re-used by other
C sources as well. This will be done by the SPL framework OS boot
support.

Signed-off-by: Stefan Roese <sr@denx.de>
2012-12-05 17:27:02 +01:00
Kim Phillips
eef1cf2d5c include/linux/byteorder: import latest endian definitions from linux
u-boot's byteorder headers did not contain endianness attributions
for use with sparse, causing a lot of false positives.  Import the
kernel's latest definitions, and enable them by including compiler.h
and types.h.  They come with 'const' added for some swab functions, so
fix those up, too:

include/linux/byteorder/big_endian.h:46:2: warning: passing argument 1 of '__swab64p' discards 'const' qualifier from pointer target type [enabled by default]

Also, note: u-boot's historic __BYTE_ORDER definition has been
preserved (for the time being at least).

We also remove ad-hoc barrier() definitions, since we're including
compiler.h in files that hadn't in the past:

macb.c:54:0: warning: "barrier" redefined [enabled by default]

In addition, including compiler.h in byteorder changes the 'noinline'
definition to expand to __attribute__((noinline)).  This fixes
arch/powerpc/lib/bootm.c:

bootm.c:329:16: error: attribute '__attribute__': unknown attribute
bootm.c:329:16: error: expected ')' before '__attribute__'
bootm.c:329:25: error: expected identifier or '(' before ')' token

powerpc sparse builds yield:

include/common.h:356:22: error: marked inline, but without a definition

the unknown-reason inlining without a definition is considered obsolete
given it was part of the 2002 initial commit, and no arm version was
'fixed.'

also fixed:
ydirectenv.h:60:0: warning: "inline" redefined [enabled by default]

and:

Configuring for devconcenter - Board: intip, Options: DEVCONCENTER
make[1]: *** [4xx_ibm_ddr2_autocalib.o] Error 1
make: *** [arch/powerpc/cpu/ppc4xx/libppc4xx.o] Error 2
powerpc-fsl-linux-size: './u-boot': No such file
4xx_ibm_ddr2_autocalib.c: In function 'DQS_autocalibration':
include/asm/ppc4xx-sdram.h:1407:13: sorry, unimplemented: inlining failed in call to 'ppc4xx_ibm_ddr2_register_dump': function body not available
4xx_ibm_ddr2_autocalib.c:1243:32: sorry, unimplemented: called from here

and:

In file included from crc32.c:50:0:
crc32table.h:4:1: warning: implicit declaration of function '___constant_swab32' [-Wimplicit-function-declaration]
crc32table.h:4:1: error: initializer element is not constant
crc32table.h:4:1: error: (near initialization for 'crc32table_le[0]')

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
[trini: Remove '#endif' in include/common.h around setenv portion]
Signed-off-by: Tom Rini <trini@ti.com>
2012-11-04 11:00:34 -07:00
Simon Glass
770605e4f9 bootstage: Replace show_boot_progress/error() with bootstage_...()
These calls should not be made directly any more, since bootstage
will call the show_boot_...() functions as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:41:39 +01:00
Simon Glass
578ac1e9ba bootstage: Make use of BOOTSTAGE_ID_RUN_OS in show_boot_progress()
This changes the number 15 as used in boot_stage_progress() to use the
new name provided for it. This is a separate patch because it touches
so many files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-03-18 20:45:57 +01:00
Kumar Gala
3b2001105f powerpc/bootm: Flush ramdisk and device tree image when booting on MP
We already flush the kernel image after we've loaded it to ensure
visiblity to the other cores.  We need to do the same thing for the
ramdisk and device tree images.  In AMP boot scenarios we might not be
HW cache coherent with the secondary core that we are loading and
setting the ramdisk and device tree up for.  Thus we need to ensure
we've flushed the regions of memory utilized by ramdisk and device tree
so the loadding and any modifications (from decompression or fdt updates)
are made visible to the secondary cores.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-12-12 08:17:52 +01:00
Diana CRACIUN
99ffccbd3e Flush cache after the OS image is loaded into the memory.
Since we are loading an executable image into memory we need flush it
out of the cache to possible maintain coherence on CPUs with split
instruction and data caches.  We do this for other executable image
loading command.

On PowerPC once we do this we no longer need to explicitly flush the
dcache on multi-core systems in the BOOTM_STATE_OS_PREP phase.  We now
treat the BOOTM_STATE_OS_PREP as a no-op to maintain backwards
compatibility with the bootm subcommand.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Diana CRACIUN <Diana.Craciun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-09-05 16:07:44 +02:00
Timur Tabi
90f89f099d powerpc/85xx: verify the device tree before booting Linux
Introduce ft_verify_fdt(), a function that is called after the device tree
has been fixed up, that displays warning messages if there is a mismatch
between the physical addresses of some devices that U-Boot has configured
with what the device tree says the addresses are.

This is a particular problem when booting a 36-bit device tree from a
32-bit U-Boot (or vice versa), because the physical address of CCSR is
wrong in the device tree.  When the operating system boots, no messages are
displayed, so the user generally has no idea what's wrong.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-07-29 08:53:39 -05:00
Kumar Gala
70bfb032ec powerpc/85xx: Fix setting of EPAPR_MAGIC value
Had a typo in the ifdef for 85xx, should be CONFIG_MPC85xx for it to get
triggered.  Was pull in the non-BookE magic number.

Reported-by: John Cortell
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-07-29 08:53:37 -05:00
Kumar Gala
9e9579bbf9 powerpc: Fix device tree padding associated with ramdisk
When booting with a ramdisk we bump the amount of memory reserved for
the device tree by FDT_RAMDISK_OVERHEAD.  However we did not increase
the actual size in the device tree blob to match.

Its possible on boundary cases that we dont have enough memory according
to the device tree blob and get errors like:

WARNING: could not set linux,initrd-end FDT_ERR_NOSPACE

We can easily fix this by setting the device tree size at the same time
we bump the amount of memory reserved for the device tree.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2011-07-26 13:55:10 +02:00
Grant Likely
55b0a39314 Respect memreserve regions specified in the device tree
If a regions is reserved in the fdt, then it should not be used.  Add
the memreserve regions to the lmb so that u-boot doesn't use them to
store the initrd.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
2011-04-25 21:11:21 -04:00
Grant Likely
ed59e58786 Remove device tree booting dependency on CONFIG_SYS_BOOTMAPSZ
The previous patch makes u-boot use the full accessible size of ram as
the default boot mapped size if CONFIG_SYS_BOOTMAPSZ is not defined,
which means boot_relocate_fdt() can be changed to depend solely on
CONFIG_OF_LIBFDT.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
2011-04-25 21:11:20 -04:00