Commit graph

438 commits

Author SHA1 Message Date
Keerthy
6dad56d733 arm: lib: bootm: Push the Starting kernel print to the end
Push the Starting kernel print to the end just before the
dm_remove_devices call.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-03-22 08:35:50 -04:00
Marek Vasut
86dc480d73 ARM: cache: Fix incorrect bitwise operation
The loop implemented in the code is supposed to check whether the
PL310 operation register has any bit from the mask set. Currently,
the code checks whether the PL310 operation register has any bit
set AND whether the mask is non-zero, which is incorrect. Fix the
conditional.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dalon Westergreen <dwesterg@gmail.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Tom Rini <trini@konsulko.com>
Fixes: 93bc21930a ("armv7: add PL310 support to u-boot")
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Dinh Nguyen <dinguyen@kernel.org>
2019-02-28 14:21:46 -05:00
Meenakshi Aggarwal
b3b7706b2f arch: arm: lib: Flush L3 after relocation to DDR
Flush L3 cache after uboot relocated to DDR.

Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
2019-02-19 10:26:43 +05:30
Heinrich Schuchardt
e4fd695645 efi_selftest: allow building on ARMv7-M
ARMv7-M only supports the Thumb instruction set. Our current crt0 code does
not support it. With the patch we can build all unit tests of the EFI
subsystem that do not require crt0.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2019-02-13 09:40:05 +01:00
Simon Goldschmidt
f8878da557 arm: bootm: fix sp detection at end of address range
This fixes  'arch_lmb_reserve()' for ARM that tries to detect in which
DRAM bank 'sp' is in.

This code failed if a bank was at the end of physical address range
(i.e. size + length overflowed to 0).

To fix this, calculate 'bank_end' as 'size + length - 1' so that such
banks end at 0xffffffff, not 0.

Fixes: 15751403b6 ("ARM: bootm: don't assume sp is in DRAM bank 0")
Reported-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
2019-01-16 23:16:25 -05:00
Bin Meng
fb8ebf52a4 arm: efi: Generate Microsoft PE format compliant images
Per Microsoft PE Format documentation [1], PointerToSymbolTable and
NumberOfSymbols should be zero for an image in the COFF file header.
Currently the COFF file header is hardcoded on ARM and these two
members are not zero.

This updates the hardcoded structure to clear these two members, as
well as setting the flag IMAGE_FILE_LOCAL_SYMS_STRIPPED so that we
can generate compliant *.efi images.

[1] https://docs.microsoft.com/zh-cn/windows/desktop/Debug/pe-format

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-12-02 21:59:36 +01:00
Klaus Goger
ba08afe837 arm: Make arch specific memcpy thumb-safe.
The current arch implementation of memcpy cannot be called
from thumb code, because it does not use bx instructions on return.
This patch addresses that. Note, that this patch does not touch
the hot loop of memcpy, so performance is not affected.

Tested on MXS (arm926ejs) with and without thumb-mode enabled.

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
2018-11-16 16:51:57 -05:00
Tom Rini
e3beca3a2f Patch queue for efi - 2018-10-17
A few bug fixes for the 2018.11 release:
 
   - Fix block seeking on 32bit
   - Fix execution with DEBUG set
   - Fix a few Coverity found bugs
   - Fix warnings
 
 Heinrich Schuchardt (13):
       efi_loader: fix relocation on x86_64
       efi_loader: correct signature of GetPosition, SetPosition
       efi_loader: execute efi_save_gd() first
       efi_loader: efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, ...)
       efi_loader: error handling in read_console()
       efi_loader: return type efi_console_register()
       efi_loader: superfluous statement in is_dir()
       efi_loader: memory leak in efi_set_variable()
       efi_loader: remove lcd.h from efi_net.c
       arm: do not include efi_loader.h twice
       efi_loader: fix typo in efi_boottime.c
       efi_selftest: creating new handle in controller test
       efi_loader: efi_dp_get_next_instance() superfluous statement
 
 Tom Rini (2):
       efi_loader: Fix warning in efi_load_image()
       fs: fat: Fix warning in normalize_longname()
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Merge tag 'signed-efi-2018.11' of git://github.com/agraf/u-boot

Patch queue for efi - 2018-10-17

A few bug fixes for the 2018.11 release:

  - Fix block seeking on 32bit
  - Fix execution with DEBUG set
  - Fix a few Coverity found bugs
  - Fix warnings

Heinrich Schuchardt (13):
      efi_loader: fix relocation on x86_64
      efi_loader: correct signature of GetPosition, SetPosition
      efi_loader: execute efi_save_gd() first
      efi_loader: efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, ...)
      efi_loader: error handling in read_console()
      efi_loader: return type efi_console_register()
      efi_loader: superfluous statement in is_dir()
      efi_loader: memory leak in efi_set_variable()
      efi_loader: remove lcd.h from efi_net.c
      arm: do not include efi_loader.h twice
      efi_loader: fix typo in efi_boottime.c
      efi_selftest: creating new handle in controller test
      efi_loader: efi_dp_get_next_instance() superfluous statement

Tom Rini (2):
      efi_loader: Fix warning in efi_load_image()
      fs: fat: Fix warning in normalize_longname()
2018-10-17 07:20:52 -04:00
Heinrich Schuchardt
b417d475b2 arm: do not include efi_loader.h twice
We should not include the same include twice.

Fixes: 99b8db7291 ("arm: print information about loaded UEFI images")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-16 16:41:01 +02:00
Michal Simek
e6149576e8 arm64: gic: Do gicv3 secure initialization based on EL level
Do gic cpu initialization based on EL level which u-boot enters.
U-Boot can't access EL3 regs when runs in EL2/EL1, etc.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-10-16 14:58:46 +02:00
Lokesh Vutla
f70b72e353 arm: K3: Update _start instruction
On K3 family SoCs, once the ROM loads image on R5, M3 resets R5 and
expects to start executing from 0x0. In order to handle this ROM
updates the boot vector of R5 such that first 64 bytes of image load
address are mapped to 0x0.

In this case, it is SPL's responsibility to jump to the proper image
location. So, update the PC with address of reset vector(like how
other exception vectors are handled), instead of branching to reset.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-09-11 08:32:55 -04:00
Vikas Manocha
d22336aad9 arm: armv7m: clean up armv7m unified code compilation
unified syntax should be selected by config ARM_ASM_UNIFIED

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2018-09-10 21:19:33 -04:00
Vikas Manocha
680223a2da arm: armv7m: remove un-necessary If then instruction
With gas option -mimplicit-it=always, IT block is inserted by the assembler
for thumb2.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2018-09-10 21:19:33 -04:00
Stephen Warren
74c69cdcc0 ARM: PSCI: Enable the PSCI node
When fixing up the DT to report PSCI support, explicitly enable the node.
DTs may ship with the node disabled in case a PSCI implementation is not
present, and expect any PSCI implementation to enable the node if they are
actually present.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-07-26 13:15:30 -07:00
Stephen Warren
326bd726d0 ARM: PSCI: Support PSCI v0.2
Enhance the PSCI DT editing code to allow setting a PSCI v0.2 compatible
value in the DT. The CONFIG_ option is added to the whitelist to match the
existing PSCI_1_0 option. While not adding new options to Kconfig isn't
ideal, I figure it's better to keep related options together.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-07-26 13:15:30 -07:00
Ivan Gorinov
b966e5dc54 arm: Remove unused _relocate arguments
EFI image handle and system table are not used in _relocate().

Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>
2018-07-19 16:31:36 -04:00
Marek Vasut
7f13b374fd ARM: image: Add option for ignoring ep bit 3
Add option to the booti_setup() which indicates to it that the caller
requires the image to be relocated to the beginning of the RAM and
that the information whether the image can be located anywhere in RAM
at 2 MiB aligned boundary or not is to be ignored. This is useful ie.
in case the Image is wrapped in another envelope, ie. fitImage and not
relocating it but moving it would corrupt the envelope.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Bin Chen <bin.chen@linaro.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-By: Bin Chen <bin.chen@linaro.org>
2018-06-19 07:31:45 -04:00
Andrew F. Davis
a1b73c1872 arm: Do not clear LR on exception in SPL
When an exception or interrupt occurs the link register (LR) may
contain the source of the exception, although we do not print the
value it may still be extracted with a debugger. When in SPL we
loop on getting and exception, but use a linking branch, which
over-writes the LR value, use a regular branch instruction here.

Signed-off-by: Andrew F. Davis <afd@ti.com>
2018-06-18 14:43:13 -04:00
Heinrich Schuchardt
bd2a13f329 arm: print instructions pointed to by pc
If an exception occurs in a loaded image and the relocation offset is
unknown, it is helful to know the instructions pointed to by the
program counter. This patch adds the missing output.

A possible output is:
    Code: e1c560d0 e12fff1e e120077b e12fff1e (e7f7defb)

The parentheses indicate the instruction causing the exception.

The output can be disassembled using the decodecode script provided
by the Linux kernel project.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-05-23 22:06:41 -04:00
Hannes Schmelzer
7f1cb1d588 bootm: fix 'memory-fixup' for vxWorks boot
The check for having a memory node within the fdt blob is made wrong, we
fix this here.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-05-10 20:38:34 -04:00
Lokesh Vutla
a43d46a73c arm: v7R: Add support for enabling caches
Cache maintenance procedure is same for v7A and v7R
processors. So re-use cache-cp15.c file except for
mmu parts.

Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-07 15:53:29 -04:00
Lokesh Vutla
f4bcd767bd arm: v7: Kconfig: Introduce SYS_ARM_CACHE_CP15
Certain ARM architectures like ARMv7-A, ARMv7-R has support for
enabling caches using CP15 registers. To have a common support
for all these architectures, introduce a Kconfig symbol
SYS_ARM_CACHE_CP15 that selects cache-cp15.c

Tested-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07 15:53:28 -04:00
Lokesh Vutla
acf1500138 arm: v7: Kconfig: Rename CPU_V7 as CPU_V7A
Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under
armv7 folder. This led to a misconception of creating separate folders
for armv7m and armv7r. There is no reason to create separate folder for
other armv7 based architectures when it can co-exist with few Kconfig
symbols.

As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later
separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and
can co exist in the same folder.

Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Suggested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07 15:53:24 -04:00
Tom Rini
4549e789c1 SPDX: Convert all of our multiple 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 multiple licenses (in
these cases, dual license) declared in the SPDX-License-Identifier tag.
In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A
or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B"
as per the Linux Kernel style document.  Note that parenthesis are
allowed so when they were used before we continue to use them.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 10:24:31 -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
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Vasyl Vavrychuk
3194daa10b vxworks: fixed cpu enable using PSCI on armv8
Without armv8_setup_psci register VBAR_EL3 is not set up property which
makes SMC calls jump to invalid location.

smp_kick_all_cpus is required to make slave cpus leave gic_wait_for_interrupt.
Without this they will never pursue booting process.

Fix was applied to the two ways of booting VxWorks: bootvx and bootm commands.

This implementation is very similar to what is done in boot_jump_linux
in arch/arm/lib/bootm.c file.

Tested on VxWorks 7 release SR0520 2017-12-08 Intel Stratix 10 SX SoC
Development Kit board.

Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@globallogic.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-04-13 17:06:05 -04:00
Marek Vasut
a821a77aa7 ARM: Fix Makefile during SPL and TPL build
The tiny variants of memset and memcpy implementations can be
built for TPL as well, check whether a TPL build is in progress
and avoid including the default variants.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2018-04-11 13:22:06 -04:00
Heinrich Schuchardt
99b8db7291 arm: print information about loaded UEFI images
If an exception occurs in a UEFI loaded image we need the start address of
the image to determine the relocation offset.

This patch adds the necessary lines after the registers in the crash dump.
A possible output would be:

UEFI image [0xbffe6000:0xbffe631f] pc=0x138 '/\snp.efi'

With the offset 0x138 we can now find the relevant instruction in the
disassembled 'snp.efi' binary.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-04-05 15:24:01 +02:00
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
Karl Beldan
fa7b8eae7c arm64: show_regs: Dump the LRs HW values
These were dropped in [1], after relocation, for their values offset by
reloc_off.
Unconditionally show the HW values and add a '(reloc)' hint for the
offset values showed after relocation.
Also, the LRs' dumps are now formatted the same way the other regs' are.

[1] Commit 082693f4 ("arm64 :show_regs: show the address before relocation")

Signed-off-by: Karl Beldan <karl.beldan+oss@gmail.com>
2018-02-23 10:40:51 -05:00
Andre Heider
678382c73a arm/PSCI: support PSCI versions greater than 1.0
ATF recently began announcing PSCI v1.1. Since that version is unknown
to u-boot, the PSCI device nodes were not updated.

Switch from the case statement to a greater/less-than comparison so that
v1.1, as well as future versions, get at least the compatible nodes of
known versions.

PSCI v1.1 doesn't seem to have introduced a new corresponding compatible.

Signed-off-by: Andre Heider <a.heider@gmail.com>
2018-02-14 12:14:15 -05:00
Masahiro Yamada
6becd9de6b ARM: image: indent with tab instead of 4 spaces
Commit 6808ef9ac2 ("move booti_setup to arch/arm/lig/image.c")
not only moved the code, but also replaced a tab with 4 spaces
to break the Linux coding style.

Restore tab indentation.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Bin Chen <bin.chen@linaro.org>
2018-02-13 23:24:22 -05:00
Heinrich Schuchardt
268ec6e00e efi_loader: fix building crt0 on arm
Before the patch an undefined constant EFI_SUBSYSTEM was used in the
crt0 code. The current version of binutils does not swallow the error.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888403

The necessary constant IMAGE_SUBSYSTEM_EFI_APPLICATION is already
defined in pe.h. So let's factor out asm-generic/pe.h for the
image subsystem constants and use it in our assembler code.

IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER does not exist in the specification
let's use IMAGE_SUBSYSTEM_EFI_ROM instead.

The include pe.h is only used in code maintained by Alex so let him be the
maintainer here too.

Reported-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Vagrant Cascadian <vagrant@debian.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-02-10 00:24:00 +01:00
Bin Chen
6808ef9ac2 move booti_setup to arch/arm/lig/image.c
Follow bootz's pattern by moving the booti_setup to arch/arm/lib.
This allows to use booti_setup in other paths, e.g booting
an Android image containing Image format.

Note that kernel relocation is move out of booti_setup and it is the
caller's responsibility to do it and allows them do it differently. say,
cmd/booti.c just do a manually, while in the bootm path, we can use
bootm_load_os(with some changes).

Signed-off-by: Bin Chen <bin.chen@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-02-07 22:06:11 -05:00
Heiko Schocher
020da843fc arm: bootm-fdt.c: fix compiler warning
compiling U-Boot with bosch_mpcxxxxd_sd_defconfig
drops warning:

arch/arm/lib/bootm-fdt.c: In function ‘arch_fixup_fdt’:
arch/arm/lib/bootm-fdt.c:37:6: warning: unused variable ‘ret’ [-Wunused-variable]
  int ret = 0;
      ^~~

Fix it.

Signed-off-by: Heiko Schocher <hs@denx.de>
2018-01-28 09:39:05 -05:00
Heinrich Schuchardt
8218f7b5fc efi_selftest: test start image
This pair of tests checks the StartImage boot service.

Each test loads an EFI application into memory and starts it.
One returns by calling the Exit boot service. The other returns directly.

The tests are not built on x86_64 because the relocation code for the efi
binary cannot be created.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-22 23:09:14 +01:00
Stephen Warren
15751403b6 ARM: bootm: don't assume sp is in DRAM bank 0
arch_lmb_reserve() currently assumes that the stack pointer is within DRAM
bank 0. This is not necessarily true. Enhance the code to search through
DRAM banks until the bank that does contain SP is found, and then reserve
the tail of that bank.

Fixes: 2d1916e48b ("ARM: add flat device tree support")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-01-12 10:12:31 -07:00
Stephen Warren
e6c904489a ARMv8: Allow dynamic early stack pointer
U-Boot typically uses a hard-coded value for the stack pointer before
relocation. Implement option SYS_INIT_SP_BSS_OFFSET to instead calculate
the initial SP at run-time. This is useful to avoid hard-coding addresses
into U-Boot, so that can be loaded and executed at arbitrary addresses and
thus avoid using arbitrary addresses at runtime. This option's value is
the offset added to &_bss_start in order to calculate the stack pointer.
This offset should be large enough so that the early malloc region, global
data (gd), and early stack usage do not overlap any appended DTB.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-01-12 09:52:11 -07:00
Prabhakar Kushwaha
6bedf44714 arm: Add support of updating dts before fix-up
"ethernet" node fix-up for device tree happens before Linux boot.

There can be requirement of updating "ethernet" node even before
fix-up. So, add support of updating "ethernet" node.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-24 12:42:50 -07:00
Alexander Graf
52a250afa5 efi_loader: helloworld.c: Reduce file size
The efi linker script includes sections needed for the dynamic linker.
However, in our EFI application environment we don't have a dynamic linker.

So let's remove them. That way we save on 4k padding and reduce the file
size of the hello world efi binary from ~4k to ~1k.

Signed-off-by: Alexander Graf <agraf@suse.de>
2017-12-16 22:51:19 +01:00
York Sun
e421b646fc armv8: fix gd after relocation
Commit 21f4486faa ("armv8: update gd after relocate") sets x18
without checking the return value of spl_relocate_stack_gd().

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: York Sun <york.sun@nxp.com>
CC: Kever Yang <kever.yang@rock-chips.com>
CC: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-07 17:00:06 -05:00
Peng Fan
082693f4f0 arm64 :show_regs: show the address before relocation
After relocation, when error happends, it is hard to track
ELR and LR with asm file objdumped from elf file.

So subtract the gd->reloc_off the reflect the compliation address.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-04 10:23:52 -05:00
Philipp Tomsich
b4806d6f1f arm: provide a PCS-compliant setjmp implementation
The previous setjmp-implementation (as a static inline function that
contained an 'asm volatile' sequence) was extremely fragile: (some
versions of) GCC optimised the set of registers.  One critical example
was the removal of 'r9' from the clobber list, if -ffixed-reg9 was
supplied.

To increase robustness and ensure PCS-compliant behaviour, the setjmp
and longjmp implementation are now in assembly and closely match what
one would expect to find in a libc implementation.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
2017-11-21 23:57:22 +01:00
Philipp Tomsich
ef70a42f0f arm: boot0 hook: move boot0 hook before '_start'
The boot0 hook on ARM does not insert its payload before the vector
table. This is both a mismatch with thec comment above it and
contradict usage of the boot0 hook on ARM64.

To fix this (and unify the semantics for ARM and ARM64), we change the
boot0-hook semantics on ARM to match those on ARM64:
  (1) if a boot0-hook is present it is inserted at the start of
      the image
  (2) if a boot0-hook is present, emitting the ARM vector table
      (and the _start) symbol are suppressed in vectors.S and
      the boot0-hook has full control over where and when it
      wants to emit these

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:21 +01:00
Kever Yang
21f4486faa armv8: update gd after relocate
We need to update gd in assamble code after relocate,
this is a fix to:
adc421e arm: move gd handling outside of C code

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-17 07:44:13 -05:00
Stephen Warren
49e93875a6 arm64: support running at addr other than linked to
This is required in the case where U-Boot is typically loaded and run at
a particular address, but for some reason the RAM at that location is not
available, e.g. due to memory fragmentation loading other boot binaries or
firmware, splitting an SMP complex between various different OSs without
using e.g. the EL2 second-stage page tables to hide the memory asignments,
or due to known ECC failures.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2017-11-17 07:44:13 -05:00
Tom Rini
26f9184e09 Merge git://git.denx.de/u-boot-fsl-qoriq 2017-10-12 13:36:58 -04:00
York Sun
fb97b8621e armv8: layerscape: Enable falcon boot
Add jump_to_image_linux() for arm64. Add "noreturn" flag to
armv8_switch_to_el2(). Add hooks to fsl-layerscape to enable falcon
boot.

Signed-off-by: York Sun <york.sun@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
Tested-by: Łukasz Majewski <lukma@denx.de>
2017-10-09 08:48:45 -07:00
zijun_hu
7baf952fdb ARMv8: fix error in freeing stack frame
relocate_code() allocates 32 bytes stack frame but only 16 bytes are
freed before return. it will cause errors to possible previous frames
and doesn't make relocate_code() look like a function.

fix by freeing 32 bytes stack space

Signed-off-by: zijun_hu <zijun_hu@htc.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-08 16:19:56 -04:00