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
Add a host Kconfig for OF_LIBFDT. With this we can use
CONFIG_IS_ENABLED(OF_LIBFDT) directly in the tools build, so drop the
unnecessary indirection.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
The arch_lmb_reserve() is called by lib/lmb.c lmb_reserve_common() even
if CMD_BOOT{I,M,Z} is not enabled. However, the arm32/arm64 variant of
arch_lmb_reserve() is only compiled in if CMD_BOOT{I,M,Z} is enabled.
This currently does not trigger build error, because there is an empty
weak implementation of arch_lmb_reserve(), however that is not the
function that should be used on arm32/arm64.
Fix this by moving the arch_lmb_reserve() implementation into common
code and always compile it in.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Per a request from Andre Przywara and agreed with by Peter Hoyes, the
vexpress aemv8r support wasn't quite ready to be merged, but the
discussion had moved off list. We should keep the first patch in the
series for now, but revert the rest. This reverts the following
commits:
e0bd6f31ce doc: Add documentation for the Arm vexpress board configs
30e5a449e8 arm: Use armv8_switch_to_el1 env to switch to EL1
b53bbca63b vexpress64: Add BASER_FVP vexpress board variant
2f5b7b7490 armv8: Add ARMv8 MPU configuration logic
37a757e227 armv8: Ensure EL1&0 VMSA is enabled
Signed-off-by: Tom Rini <trini@konsulko.com>
Use the environment variable armv8_switch_to_el1 to determine whether
to switch to EL1 at runtime. This is an alternative to the
CONFIG_ARMV8_SWITCH_TO_EL1 compile-time option.
The environment variable will be ineffective if the ARMV8_MULTIENTRY
config is used.
This is required by the Armv8r64 architecture, which must be able to
boot at S-EL1 for Linux but may need to boot at other ELs for other
systems.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
This reverts commit 2359fa7a87.
While the goal is valid and there is surely unused memory in that area,
we also have a lot of crucial things still located at the top-of-memory
while running lmb_alloc_base. Such things are the page table (tlb_addr),
relocated U-Boot and the active stack. Possibly more. So this patch was
premature, we will need relocations of those things first if we want to
use the range.
Fixes booting on the IOT2050, but likely also on other boards. It got
stuck on relocating the FDT - over the relocated U-Boot code.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
On arm64, board info is not applicable and kernel command line patched into
the DT, so the LMB reservation here makes no sense anymore. On legacy arm32,
this might still be necessary on systems which do not use DT or use legacy
ATAGS. Disable this LMB reservation on arm64.
This also permits Linux DT to specify reserved memory node at address close
to the end of DRAM bank, i.e. overlaping with U-Boot location. Since after
boot, U-Boot will be no more, this is OK.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tom Rini <trini@konsulko.com>
On ARMv8 systems
load mmc 0:1 $loadaddr vmlinuz-5.10.0-3-arm64
booti
leads to a hanging system requiring to physically reset the system:
FDT and ATAGS support not compiled in - hanging
### ERROR ### Please RESET the board ###
For systems where physical access is difficult hanging is a poor choice.
It is preferable to reset the system when U-Boot reaches a state that is
not recoverable.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Update announce_and_cleanup() to remove all devices, with the vital ones
being removed last.
This is an extra patch on top of the recent RFC:
http://patchwork.ozlabs.org/project/uboot/list/?series=223280
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
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>
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>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
If gd->ram_top has been tuned using board_get_usable_ram_top(),
it must be taken into account when reserving arch lmb.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
At present panic() is in the vsprintf.h header file. That does not seem
like an obvious choice for hang(), even though it relates to panic(). So
let's put hang() in its own header.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Migrate a few more files]
Signed-off-by: Tom Rini <trini@konsulko.com>
Once the arch specific boot_prepare_linux completes, boards wants to
have a custom preparation for linux. Add support for a custom
board_prep_linux.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
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>
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>
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>
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>
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>
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>
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>
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>
The author of the commit discovered later on that this was already being
done in cleanup_before_linux() on arch/arm/cpu/armv7m/cpu.c.
This reverts commit 8f079cccb3.
Signed-off-by: Tom Rini <trini@konsulko.com>
Disable D-Cache is required when booting nommu Linux kernel.
(please see Linux kernel source "arch/arm/kernel/head-nommu.S")
U-Boot is enabled D-cache and I-Cache at startup.
However, it does not disable D-Cache before
booting nommu Linux kernel.
Therefore, I call dcache_disable()
when the CPU is ARMv7M to fix this problem.
Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
At present common.h includes various ARM-specific headers. In preparation
for dropping this, add a few explicit declarations.
Signed-off-by: Simon Glass <sjg@chromium.org>
This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present
Signed-off-by: Simon Glass <sjg@chromium.org>
On ARM v7M, the processor will return to ARM mode when executing
a blx instruction with bit 0 of the address == 0. Always set it
to 1 to stay in thumb mode.
Tested on STM32f746-disco board
Similar commit:
f99993c108
Author: Matt Porter <mporter@konsulko.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This patch adds a call to dm_remove_devices_flags() to
announce_and_cleanup() so that drivers that have one of the removal flags
set (e.g. DM_FLAG_ACTIVE_DMA_REMOVE) in their driver struct, may do some
last-stage cleanup before the OS is started.
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
For 64-bit kernel, there is a warning about x1-x3 nonzero in violation
of boot protocol. To fix this issue, input argument 4 is added for
armv8_switch_to_el2 and armv8_switch_to_el1. The input argument 4 will
be set to the right value, such as zero.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Newly add ARMv8 PSCI needs to be initialized, be copied or reserved in right
place, this patch does all the setup steps.
Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: York Sun <york.sun@nxp.com>
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>
Spin-table method is used for secondary cores to load 32-bit OS. The
architecture information will be got through checking FIT image and
saved in the os_arch element of spin-table, then the secondary cores
will check os_arch and jump to 32-bit OS or 64-bit OS automatically.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Chenhui Zhao <chenhui.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
To support loading a 32-bit OS, the execution state will change from
AArch64 to AArch32 when jumping to kernel.
The architecture information will be got through checking FIT image,
then U-Boot will load 32-bit OS or 64-bit OS automatically.
Signed-off-by: Ebony Zhu <ebony.zhu@nxp.com>
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Chenhui Zhao <chenhui.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
On ls2080 we have a separate network fabric component which we need to
shut down before we enter Linux (or any other OS). Along with that also
comes configuration of the fabric using a description file.
Today we always stop and configure the fabric in the boot script and
(again) exit it on device tree generation. This works ok for the normal
booti case, but with bootefi the payload we're running may still want to
access the network.
So let's add a new fsl_mc command that defers configuration and stopping
the hardware to when we actually exit U-Boot, so that we can still use
the fabric from an EFI payload.
For existing boot scripts, nothing should change with this patch.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: York Sun <york.sun@nxp.com>
[agraf: Fix x86 build]
The firmware on TC2 needs to be configured appropriately before booting
in nonsec mode will work as expected, so test for this and fall back to
sec mode if required.
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Add new Kconfig option to disable arch_fixup_fdt() calls for cases where
U-Boot shouldn't update memory setup in DTB file.
One example of usage of this option is to boot OS with different memory
setup than U-Boot use.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Simon Glass <sjg@chromium.org>
Other payload than uImage is currently considered to be raw U-Boot
image. Check also for zImage in Falcon mode.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
After boot_ramdisk_high(), ramdisk would be relocated to
initrd_start & initrd_end, so use them instead of rd_start & rd_end.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Before continue, check return value of strict_strtoul.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Simon Glass <sjg@chromium.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: York Sun <yorksun@freescale.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
