Commit graph

64448 commits

Author SHA1 Message Date
Bin Meng
0dbd6e3698 mkimage: fit: Free buf directly in fit_extract_data()
If given ptr to free() is NULL, no operation is performed.
Hence we can just free buf directly in fit_extract_data().

Signed-off-by: Bin Meng <bin.meng@windriver.com>
2020-04-24 10:51:56 -04:00
Lihua Zhao
3fc85a782a mkimage: fit: Unmmap the memory before closing fd in fit_import_data()
Without calling munmap(), the follow-up call to open() the same file
with a flag O_TRUNC seems not to cause any issue on Linux, but it fails
on Windows with error like below:

    Can't open kernel_fdt.itb.tmp: Permission denied

Fix this by unmapping the memory before closing fd in fit_import_data().

Signed-off-by: Lihua Zhao <lihua.zhao@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
2020-04-24 10:51:56 -04:00
Bin Meng
3b32cf096b tools: Remove the out-of-date MinGW support codes
MinGW build for U-Boot tools has been broken for years. The official
support of Windows build is now MSYS2. Remove the MinGW support codes.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
2020-04-24 10:51:56 -04:00
Heinrich Schuchardt
ae2b3e8510 doc: invalid doc link in rstFlatTable.py
Remove an invalid documentation link in rstFlatTable.py. This synchronizes
the file with Linux next-20200413.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-04-24 10:51:56 -04:00
Joel Johnson
67b359cf03 spl: Kconfig: de-dup SPL_DM_GPIO definition
Two nearly concurrent commits (d4d65e112 and bcee8d676) added a
SPL_DM_GPIO symbol. Resolve the duplication in favor of the version
in drivers/gpio/Kconfig.

Signed-off-by: Joel Johnson <mrjoel@lixil.net>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
2020-04-24 10:51:32 -04:00
Masahiro Yamada
308c6b0d4b fixdep: Re-sync with Linux 5.7-rc1
fixdep is a standalone host program, so we can just re-sync it with
the latest Linux in one commit.

I kept the U-Boot own code block surrounded by
/* hack for U-Boot */ ... /* U-boot hack end */.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-24 10:51:32 -04:00
Masahiro Yamada
9d88a0aae8 fixdep: handle CONFIG_IS_ENABLE() and friends for TPL
Since commit f1c6e1922e ("spl: dm: use CONFIG_IS_ENABLED to test for
the DM option"), CONFIG_IS_ENABLED() handles CONFIG_TPL_* options, but
fixdep still cannot because it hard-codes the "SPL_" prefix as follows:

    char tmp_buf[256] = "SPL_"; /* hack for U-Boot */

Take care of the "TPL_" prefix too.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
f9f5a7e524 .mailmap: map Ruchika Gupta's mail address
Freescale mail addresses are not valid anymore.

Reported-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
be621c11b9 dlmalloc: remove unit test support in SPL
We cannot run unit tests in SPL. So remove the unit test support.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
f6a24a177f lib: do not provide hexdump in SPL
SPL should not be enlarged by building with CONFIG_HEXDUMP=y.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
6441164dda common: image_sign_info helper functions in SPL
Do not build image_sign_info helper functions in SPL if not needed.

Fixes: b983cc2da0 ("lib: rsa: decouple rsa from FIT image verification")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
4f4d526f59 lib: do not build OID registry in SPL
The OID registry is only used by crypto functions that are not built in
SPL. So we should not build it in SPL.

Fixes: a9b45e6e83 ("lib: add oid registry utility")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
b21c08a12b tools: image-host.c: use correct output format
When building on a 32bit host the following warning occurs:

tools/image-host.c: In function ‘fit_image_read_data’:
tools/image-host.c:310:42: warning: format ‘%ld’ expects argument of type
‘long int’, but argument 3 has type ‘ssize_t’ {aka ‘int’} [-Wformat=]
   printf("Can't read all file %s (read %ld bytes, expexted %ld)\n",
                                        ~~^
                                        %d
          filename, n, sbuf.st_size);
                    ~

n is of type ssize_t so we should use %zd for printing.

Fixes: 7298e42250 ("mkimage: fit: add support to encrypt image with aes")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
0053d26bcc Makefile: ARMv7-M has no CPSR register
Compiling on ARMv7-M fails when trying to address the CPSR register which
is not available on this architecture.

Atomic functions refer to the CPSR register if compiled with
arch/arm/include/asm/proc-armv/system.h. On ARMv7-M we should hence
use arch/arm/thumb1/include/asm/proc-armv/system.h instead.

Cf. https://stackoverflow.com/questions/61097841/error-selected-processor-does-not-support-requested-special-purpose-register

Reported-by: Sicris Rey Embay <sicris.embay@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-04-24 10:51:32 -04:00
Heinrich Schuchardt
a555557ddc qemu: don't allow to select 32- and 64-bit
TARGET_QEMU_ARM_64BIT and TARGET_QEMU_ARM_32BIT should be mutually
exclusive.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-04-24 10:51:32 -04:00
Peter Collingbourne
ec8eef5e71 fvp: Add support for loading Android boot images via semihosting
FVP now loads an Android boot image named boot.img if available,
otherwise it falls back to the existing code path.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-24 10:10:01 -04:00
Kever Yang
ebfe611be9 mkimage: fit_image: Add option to make fit header align
The image is usually stored in block device like emmc, SD card, make the
offset of image data aligned to block(512 byte) can avoid data copy
during boot process.
eg. SPL boot from FIT image with external data:
- SPL read the first block of FIT image, and then parse the header;
- SPL read image data separately;
- The first image offset is the base_offset which is the header size;
- The second image offset is just after the first image;
- If the offset of imge does not aligned, SPL will do memcpy;
The header size is a ramdon number, which is very possible not aligned, so
add '-B size'to specify the align size in hex for better performance.

example usage:
  ./tools/mkimage -E -f u-boot.its -B 0x200 u-boot.itb

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:10:01 -04:00
Kever Yang
10d887ddfa libfdt: Make fdtdec_get_child_count() available for HOST
The tool need to use fdtdec_get_child_count(), make it available for
HOST_CC.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:10:01 -04:00
Kever Yang
02560b1368 tool: use ALIGN() to align the size
Use the ALIGN() for size align so that the code is more readable.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-04-24 10:10:00 -04:00
Kever Yang
e5ad99cc99 tools: imx8mimage: remove redundant code
The align for fit_size has been done twice, remove the first one for it
does not make any sense.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:10:00 -04:00
Kever Yang
e002ee7efc tools: kwbimage: use common ALIGN to do the size align
The ALIGN() is now available at imagetool.h, migrate to use it.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2020-04-24 10:10:00 -04:00
Kever Yang
29e7ab0186 tools: mkimage: use common ALIGN to do the size align
The ALIGN() is now available at imagetool.h, migrate to use it.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:10:00 -04:00
Kever Yang
cd1cec6364 tool: aisimage: use ALIGN instead of self defiend macro
The ALIGN() is available at imagetool.h, no need to self define one.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:10:00 -04:00
Kever Yang
c738adb8db tool: Move ALIGN_MASK to header as common MACRO
The ALIGN code is need by many files who need handle structure or image
align, so move the macro to imagetool.h file.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-04-24 10:10:00 -04:00
Jonathan Corbet
9b544c9eb3 docs: Fix conf.py for Sphinx 2.0
commit 3bc8088464712fdcb078eefb68837ccfcc413c88 upstream.

Our version check in Documentation/conf.py never envisioned a world where
Sphinx moved beyond 1.x.  Now that the unthinkable has happened, fix our
version check to handle higher version numbers correctly.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
[rebase for u-boot]
Signed-off-by: Sean Anderson <seanga2@gmail.com>
2020-04-24 10:10:00 -04:00
Rasmus Villemoes
9e3c94d117 env/sf.c: drop private CMD_SAVEENV logic
Deciding whether to compile the env_sf_save() function based solely on
CONFIG_SPL_BUILD is wrong: For U-Boot proper, it leads to a build
warning in case CONFIG_CMD_SAVEENV=n (because the env_save_ptr() macro
causes the function to indeed not be referenced anywhere). And for
SPL, when one selects CONFIG_SPL_SAVEENV, one obviously expects to
actually be able to save the environment.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-04-24 10:10:00 -04:00
Rasmus Villemoes
1df96a7e76 env/ext4.c: remove CONFIG_CMD_SAVEENV ifdef
Removing this ifdef/endif pair yields a "defined but unused warning"
for CONFIG_CMD_SAVEENV=n, but that vanishes if we use the ENV_SAVE_PTR
macro instead. This gives slightly better compile testing, and
moreover, it's possible to have

  CONFIG_CMD_SAVEENV=n
  CONFIG_SPL_SAVEENV=y
  SPL_ENV_IS_IN_EXT4=y

in which case env_ext4_save would erroneously not be compiled in.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-04-24 10:10:00 -04:00
Rasmus Villemoes
3908bc9344 env/fat.c: remove private CMD_SAVEENV logic
Always compile the env_fat_save() function, and let
CONFIG_IS_ENABLED(SAVEENV) (via the ENV_SAVE_PTR macro) decide whether
it actually ends up being compiled in.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-04-24 10:10:00 -04:00
Rasmus Villemoes
82b2f41357 env_internal.h: add alternative ENV_SAVE_PTR macro
The current definition of the env_save_ptr does not take SPL_SAVEENV
into account. Moreover, the way it is implemented means that drivers
need to guard the definitions of their _save methods with ifdefs to
avoid "defined but unused" warnings in case CMD_SAVEENV=n.

The ifdeffery can be avoided by using a "something ? x : NULL"
construction instead and still have the compiler elide the _save
method when it is not referenced. Unfortunately we can't just switch
the existing env_save_ptr macro, since that would give a lot of build
errors unless all the ifdeffery is removed at the same time.
Conversely, removing that ifdeffery first would merely lead to the
"defined but unused" warnings temporarily, but for some storage
drivers it requires a bit more work than just removing their private
CMD_SAVEENV logic.

So introduce an alternative to env_save_ptr, which for lack of a
better name is simply uppercased, allowing one to update storage
drivers piecemeal to both reduce their ifdeffery and honour
CONFIG_SPL_SAVEENV.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-04-24 10:10:00 -04:00
Rasmus Villemoes
1d0adee45c env: add SAVEENV as an alias of the CMD_SAVEENV symbol
Currently, testing whether to compile in support for saving the
environment is a bit awkward when one needs to take SPL_SAVEENV into
account, and quite a few storage drivers currently do not honour
SPL_SAVEENV.

To make it a bit easier to decide whether environment saving should be
enabled, introduce SAVEENV as an alias for the CMD_SAVEENV
symbol. Then one can simply use

  CONFIG_IS_ENABLED(SAVEENV)

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-04-24 10:10:00 -04:00
Frédéric Danis
df928f8549 bootcount_ext: Add flag to enable/disable bootcount
After a successful upgrade, multiple problem during boot sequence may
trigger the altbootcmd process.
This patch adds a version and an upgrade_available entries to the
bootcount file to enable/disable the bootcount check.
When failing to read the bootcount file it will consider that bootcount is
enabled, acting as previously, and update the file accordingly.

The bootcount file is only saved when `upgrade_available` is true, this
allows to save writes to the filesystem.

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:10:00 -04:00
Rasmus Villemoes
080019b86c make env_entry::callback conditional on !CONFIG_SPL_BUILD
The callback member of struct env_entry is always NULL for an SPL
build. Removing it thus saves a bit of run-time memory in the
SPL (when CONFIG_SPL_ENV_SUPPORT=y) since struct env_entry is embedded
in struct env_entry_node - i.e. about 2KB for the normal case of
512+change hash table entries.

Two small fixups are needed for this, all other references to the
callback member are already under !CONFIG_SPL_BUILD: Don't initialize
.callback in set_flags() - hsearch_r doesn't use that value
anyway. And make env_callback_init() initialize ->callback to NULL for
a new entry instead of relying on an unused or deleted entry having
NULL in ->callback.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:09:59 -04:00
Rasmus Villemoes
34284970a1 lib/hashtable.c: don't test ->callback in SPL
In SPL, environment callbacks are not supported, so e->callback is
always NULL. Removing this makes the SPL a little smaller (about 400
bytes in my ppc build) with no functional change.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:09:59 -04:00
Rasmus Villemoes
7f529f6585 lib/hashtable.c: create helper for calling env_entry::callback
This is preparation for compiling out the "call the callback" code and
associated error handling for SPL, where ->callback is always NULL.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:09:59 -04:00
Rasmus Villemoes
e13df08a26 env: remove callback.o for an SPL build
env.h says this about about callback declarations (U_BOOT_ENV_CALLBACK):

 * For SPL these are silently dropped to reduce code size, since environment
 * callbacks are not supported with SPL.

So env_callback_init() does a lot of work to not find anything in the
guaranteed empty env_clbk list. Drop callback.o entirely from the link
and stub out the only public function defined in callback.o. This cuts
about 600 bytes from the SPL on my ppc build.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-04-24 10:09:59 -04:00
Landen Chao
532de8d99c eth: mtk-eth: add mt7531 switch support in mediatek eth driver
mt7531 is a 7-ports switch with 5 embedded giga phys, and uses the same
MAC design of mt7530. The cpu port6 supports SGMII only. The cpu port5
supports RGMII or SGMII in different model.

mt7531 is connected to mt7622 via both RGMII and SGMII interfaces.
In this patch, mt7531 cpu port5 or port6 is configured to maximum
capability to align CPU MAC setting.

The dts has been committed in the commit 6efa450565 ("arm: dts:
mediatek: add ethernet and sgmii dts node for mt7622")

Signed-off-by: Landen Chao <landen.chao@mediatek.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
2020-04-24 10:09:59 -04:00
Charles Frey
ea8de984e5 watchdog: mpc8xx_wdt: Allow selection of watchdog mode through environment
The mpc8xx watchdog can work either in 'reset mode' or 'NMI mode'.
The selection can be done at startup only.
It is desirable to select the mode without rebuilding U-boot.
It is also desirable to disable the watchdog without rebuilding.

At watchdog startup, check environment variable 'watchdog_mode'.
If it is 'off', the watchdog is not started. If it is 'nmi',
the watchdog is started in NMI mode. Otherwise, it is started
in reset mode which is the default mode.

Signed-off-by: Charles Frey <charles.frey@c-s.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2020-04-24 10:09:59 -04:00
Marek Vasut
132e5b6898 ARM: dts: stm32: Split AV96 into DHCOR SoM and AV96 board
The AV96 is in fact an assembly of DH Electronics DHCOR SoM on top
of an AV96 reference board. Split the DTs to reflect that and make
sure to DHCOR SoM can be reused on other boards easily.

It is also highly recommended to configure the board for the DHCOM
make stm32mp15_dhcom_basic_defconfig
make DEVICE_TREE=stm32mp15xx-dhcor-avenger96
as that permits reusing the board code for the DH components, like
accessing and reading out the ethernet MAC from EEPROM.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Change-Id: I7db47280d4eb0d668eb4e006355240271154f97f
2020-04-24 15:52:48 +02:00
Marek Vasut
e5899099ab ARM: dts: stm32: Adjust PLL4 settings on AV96
The PLL4 is supplying SDMMC12, SDMMC3 and SPDIF with 120 MHz and
FDCAN with 96 MHz. This isn't good for the SDMMC interfaces, which
can not easily divide the clock down to e.g. 50 MHz for high speed
SD and eMMC devices, so those devices end up running at 30 MHz as
that is 120 MHz / 4. Adjust the PLL4 settings such that both PLL4P
and PLL4R run at 100 MHz instead, which is easy to divide to 50MHz
for optimal operation of both SD and eMMC, SPDIF clock are not that
much slower and FDCAN is also unaffected.

Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-04-24 15:50:40 +02:00
Patrick Delaunay
e7a0251d50 ARM: dts: stm32mp1: remove file stm32mp157-pinctrl.dtsi
Remove the unnecessary file stm32mp157-pinctrl.dtsi and
solve all issues introduced by the commit 8914831860 ("Merge branch
 'next'") after a conflict on the patch applied in the next branch in
commit 1a4f57c895 ("ARM: dts: stm32mp1: DT alignment with Linux 5.6-rc1")

Need to reapplied on stm32mp15-pinctrl.dtsi the the 3 patches
applied previously on file "stm32mp157-pinctrl.dtsi" in v2020.04
- commit 4fdbe6487d ("ARM: dts: stm32: Add alternate pinmux for SDMMC1
 direction pins")'
- commit 5fdcba6402 ("ARM: dts: stm32: Add alternate pinmux for SDMMC2
 pins 4-7")'
- commit 955de51111 ("ARM: dts: stm32: Add alternate pinmux for ethernet
 RGMII")'

Cc: Marek Vasut <marex@denx.de>

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-04-24 15:50:15 +02:00
Lokesh Vutla
dbfd9e0e61 dm: pinctrl: Use right device pointer for configuring pinctrl
commit 719cab6d2e ("dm: pinctrl: convert pinctrl-single to livetree")
converted pinctrl driver to livetree. In this conversion, the call to
read pinctrl-single,pins/bits property is provided with pinctrl device
pointer instead of pinctrl config pointer. Because of this none of the
pins gets configured. Fix it by passing the right udevice pointer.

Fixes: 719cab6d2e ("dm: pinctrl: convert pinctrl-single to livetree")
Reported-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-04-23 08:25:37 -04:00
Tom Rini
a5f9b8a8b5 Merge https://gitlab.denx.de/u-boot/custodians/u-boot-riscv
- Adds few DT related fixes required for Linux EFI stub to work on
  RISC-V.
- Makes SBI v0.2 the default SBI version to work with OpenSBI v0.7.
- Revert "riscv: qemu: clear kernel-start/-end in device tree as
  workaround for BBL"
- Remove unnecessary CONFIG_IS_ENABLED().
2020-04-23 08:24:47 -04:00
Atish Patra
177c53fe6c riscv: Move all fdt fixups together
Keep all the fdt fixups together for better code management.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-23 10:14:16 +08:00
Atish Patra
73d756fd22 riscv: Copy the reserved-memory nodes to final DT
The DT used by U-Boot may be different from the DT being passed to
the OS if the DT is loaded from external media such as network or
mmc. In that case, the reserved-memory node needs to be copied to
the DT passed to the OS.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-23 10:14:16 +08:00
Atish Patra
0cb27856d1 riscv: Setup reserved-memory node for FU540
FU540 uses OF_SEPARATE instead of OF_PRIOR_STAGE.

Enable OF_BOARD_FIXUP to update the DT with reserved-memory node.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-23 10:14:16 +08:00
Atish Patra
d4ea649f17 riscv: Provide a mechanism to fix DT for reserved memory
In RISC-V, M-mode software can reserve physical memory regions
by setting appropriate physical memory protection (PMP) csr. As the
PMP csr are accessible only in M-mode, S-mode U-Boot can not read
this configuration directly. However, M-mode software can pass this
information via reserved-memory node in device tree so that S-mode
software can access this information.

This patch provides a framework to copy to the reserved-memory node
from one DT to another. This will be used to update the DT used by
U-Boot and the DT passed to the next stage OS.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-23 10:14:16 +08:00
Atish Patra
f614753c4b fdtdec: Fix boundary check
In U-Boot, the reserved memory end address is considered as a inclusive
address. This notion is followed while adding a reserved memory node to
the DT.

For example:
end_address = start_address + size - 1

Follow the same notion and fix the end address computation while checking
for existing nodes.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-23 10:14:16 +08:00
Atish Patra
5370478d1c riscv: Add boot hartid to device tree
Linux booting protocol mandates that register "a0" contains the hartid.
However, U-Boot can not pass the hartid via a0 during standard UEFI
protocol. DT nodes are commonly used to pass such information to the OS.

Add a DT node under chosen node to indicate the boot hartid. EFI stub
in Linux kernel will parse this node and pass it to the real kernel
in "a0" before jumping to it.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-23 10:14:16 +08:00
Bin Meng
fa16ec23bc riscv: Make SBI v0.2 the default SBI version
To work with latest OpenSBI release (v0.7 or above) that has the HSM
extension support, select the SBI v0.2 support by default.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-04-23 10:14:06 +08:00
Bin Meng
ff0fa6c1b3 riscv: Add Kconfig option for SBI v0.2
SBI v0.2 is more scalable and extendable to handle future needs
for RISC-V supervisor interfaces. For example, with SBI v0.2 HSM
extension, only a single hart need to boot and enter operating
system. The booting hart can bring up secondary harts one by one
afterwards.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-04-23 10:14:06 +08:00