As the lower 16bit of the redistributor pending table is reserved
for describing the memory attributes, we must give a 64KB aligned
address to the GIC LPI initialization function.
Program the GIC redistributor tables only when succeeded to reserve memory
for them, otherwise kernel will lose the chance to program them using
allocated memory.
armv8: ls1046ardb: update the DIMM WRLVL_START value
The WRLVL_START values are optimized for old DDR MTA18ASF1G72AZ.
Update DDR struct to set new WRLVL_START values so that the new DIMM
MTA18ADF2G72AZ get optimized and the old DIMM still works.
Alison Wang [Thu, 23 Apr 2020 14:37:34 +0000 (22:37 +0800)]
configs: ls1021a: Append CMA configuration to bootargs
The default reserved memory for CMA is high memory. If LPAE is enabled,
highmem pages are non-remapped and can not be used with
dma_alloc_coherent. Reserving low memory for CMA is needed for LS1021A.
This patch appends the related CMA configuration to bootargs.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com> Signed-off-by: Alison Wang <alison.wang@nxp.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Peter Robinson [Mon, 20 Apr 2020 18:18:25 +0000 (19:18 +0100)]
drivers: video: rockchip: fix building eDP and LVDS drivers
The rk_edp.c and rk_lvds.c files reference rk_setreg which is declared in
hardware.h so include it so the drivers build. Adjust rk_lvds.c so
includes are in alphabetical order while updating.
drivers/spi/mpc8xxx_spi.c:64:3: warning: implicit declaration of function ‘dev_err’ [-Wimplicit-function-declaration]
...
drivers/spi/built-in.o: In function `mpc8xxx_spi_set_speed':
drivers/spi/mpc8xxx_spi.c:227: undefined reference to `dev_err'
Fixes: 4856cc7a97 (mpc8xxx_spi: implement real ->set_speed) Fixes: 1a7b462dee (mpc8xxx_spi: put max_cs to use) Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
This patch adds .dtsi file(sync with Linux 5.5-rc6 with hash "b3a987b0264d")
and required binding for S700 SoC that is a 64-bit Quad-core ARM
Cortex-A53 cores.
It also provisions dts file to be built based on selected
platform(CONFIG_MACH_S900/S700).
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Synchronize device tree bindings with v5.5-rc6 tag with commit id
"b3a987b0264d".
Also, it removes older clock binding defined for S900 along with undocumented
compatible string "actions,s900-serial" from serial driver and adapts clock
driver to cater to new bindings.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
b42841b7bb62 kbuild: Get rid of KBUILD_STR 2aedcd098a94 kbuild: suppress annoying "... is up to date." message 9c8fa9bc08f6 kbuild: fix if_change and friends to consider argument order ebf003f0cfb3 kbuild: Consolidate header generation from ASM offset information 2982c953570b kbuild: remove redundant $(wildcard ...) for cmd_files calculation 8a78756eb545 kbuild: create object directories simpler and faster 4d4b5c2e3b6e treewide: remove explicit rules for *offsets.s 01d509a48b46 kbuild: remove unimportant comments from ./Kbuild
Patrick Delaunay [Fri, 10 Apr 2020 14:34:41 +0000 (16:34 +0200)]
README: remove references on no more used config CONFIG_SYS_RCAR_I2C*
Remove the references in README on CONFIG_SYS_RCAR_I2C_* not use
in U-Boot drivers/i2c/rcar_i2c.c, since commit a4d9aafadb31 ("i2c:
rcar_i2c: Remove the driver") and commit a06a0ac36d59 ("i2c: rcar_i2c:
Add DM and DT capable I2C driver")
Checked by the command: grep -r SYS_RCAR_I2C *
And these CONFIG are only defined in
arch/arm/mach-rmobile/include/mach/rcar-base.h
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Michal Simek [Wed, 8 Apr 2020 08:09:16 +0000 (10:09 +0200)]
lib: strto: Stop detection when invalid char is used
This issue has been found when mtd partition are specified. Autodetection
code should stop when the first invalid char is found.
Here is the example of commands:
setenv mtdids nand0=memory-controller@e000e000
setenv mtdparts "mtdparts=nand0:4m(boot),4m(env),64m(kernel),96m(rootfs)"
mtd list
mtd: nand: pxa3xx: fix raw read when last_chunk_size == 0
Commit 6293b0361d9 ("mtd: nand: pxa3xx: add raw read support") added the
local data_len variable in handle_data_pio() to track read size, but
forgot to update the condition of drain_fifo() call. That happens to
work when the layout last_chunk_size != 0. But when last_chunk_size ==
0, drain_fifo() is not called to read the last chunk, which leads to
"Wait timeout!!!" error. Fix this.
Ovidiu Panait [Sun, 29 Mar 2020 17:57:40 +0000 (20:57 +0300)]
arm: asm/cache.c: Introduce arm_reserve_mmu
As a preparation for turning reserve_mmu into an arch-specific variant,
introduce arm_reserve_mmu on ARM. It implements the default routine for
reserving memory for MMU TLB and needs to be weakly defined in order to allow
for machines to override it.
Without this decoupling, after introducing arch_reserve_mmu, there would be two
weak definitions for it, one in common/board_f.c and one in
arch/arm/lib/cache.c.
Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Tom Rini [Fri, 24 Apr 2020 18:07:59 +0000 (14:07 -0400)]
Merge tag 'u-boot-stm32-20200424' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm
- Solve stm32mp15 pinctrl dts issue (patch conflict in branches master and next)
- Split device tree for DHCOR Som and AV 96 board
- Update PLL4 setting in AV96 board
- Enable bootd, iminfo, imxtract on DHCOM
Tom Rini [Fri, 24 Apr 2020 17:04:38 +0000 (13:04 -0400)]
Merge branch '2020-04-24-master-imports'
- Assorted minor bugfixes.
- Resync fixdep with Linux v5.7-rc1
- Numerous changes to reduce SPL in various cases including when we have
read-only env support.
- Allow mkimage to align the header on FIT images to a specific size.
Tom Rini [Fri, 24 Apr 2020 16:30:45 +0000 (12:30 -0400)]
sunxi: Fix PHY regression on A20-OLinuXino-Lime2 and A20-Olimex-SOM-EVB
When moving the PHYLIB PHY drivers around in Kconfig we did not at the
same time perform a careful migration of the related drivers and
sub-options. This lead to the case where previously Kconfig-enabled
driver choices were now disabled on some platforms. Correct this by
enabling both the PHY driver and sub-option on the above referenced
platforms.
Fixes: af2cbfd6b982 ("drivers: net: Provide Kconfig menu for PHYLIB") Fixes: 8728c97eff5b ("configs: Re-sync") Reported-by: Dario <dario86@tutamail.com> Signed-off-by: Tom Rini <trini@konsulko.com>
---
After checking back on the original commit I can see that these are the
only two platforms to have been broken in the change.
Simon Glass [Sun, 19 Apr 2020 23:02:32 +0000 (17:02 -0600)]
travis: Correct error checking when building boards
At present if buildman reports an error, the travis build still succeeds.
This is because the travis script does not stop when it sees errors; nor
does it automatically return the exit code. Also the current error
checking never triggers since 'ret' is not set.
Fix this by setting 'ret' correctly.
Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
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>
Joel Johnson [Fri, 17 Apr 2020 15:42:29 +0000 (09:42 -0600)]
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>
fixdep: handle CONFIG_IS_ENABLE() and friends for TPL
Since commit f1c6e1922eb5 ("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:
Do not build image_sign_info helper functions in SPL if not needed.
Fixes: b983cc2da0ba ("lib: rsa: decouple rsa from FIT image verification") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
The OID registry is only used by crypto functions that are not built in
SPL. So we should not build it in SPL.
Fixes: a9b45e6e8382 ("lib: add oid registry utility") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
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: 7298e422504e ("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>
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.
Kever Yang [Mon, 30 Mar 2020 03:56:24 +0000 (11:56 +0800)]
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>
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>
Rasmus Villemoes [Wed, 19 Feb 2020 09:47:43 +0000 (09:47 +0000)]
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.
Rasmus Villemoes [Wed, 19 Feb 2020 09:47:42 +0000 (09:47 +0000)]
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
Rasmus Villemoes [Wed, 19 Feb 2020 09:47:41 +0000 (09:47 +0000)]
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.
Rasmus Villemoes [Wed, 19 Feb 2020 09:47:40 +0000 (09:47 +0000)]
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.
Rasmus Villemoes [Wed, 19 Feb 2020 09:47:39 +0000 (09:47 +0000)]
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
Frédéric Danis [Tue, 17 Mar 2020 16:59:09 +0000 (17:59 +0100)]
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>
Rasmus Villemoes [Thu, 27 Feb 2020 13:56:12 +0000 (13:56 +0000)]
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>
Rasmus Villemoes [Thu, 27 Feb 2020 13:56:11 +0000 (13:56 +0000)]
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>
Rasmus Villemoes [Thu, 27 Feb 2020 13:56:10 +0000 (13:56 +0000)]
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>
Landen Chao [Tue, 18 Feb 2020 08:49:37 +0000 (16:49 +0800)]
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 6efa450565cdc ("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>
Charles Frey [Wed, 19 Feb 2020 16:50:15 +0000 (16:50 +0000)]
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>
Marek Vasut [Tue, 31 Mar 2020 17:51:36 +0000 (19:51 +0200)]
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
Marek Vasut [Tue, 31 Mar 2020 17:51:35 +0000 (19:51 +0200)]
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>
Remove the unnecessary file stm32mp157-pinctrl.dtsi and
solve all issues introduced by the commit 891483186052b2598 ("Merge branch
'next'") after a conflict on the patch applied in the next branch in
commit 1a4f57c895cc ("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 4fdbe6487daa ("ARM: dts: stm32: Add alternate pinmux for SDMMC1
direction pins")'
- commit 5fdcba64027f ("ARM: dts: stm32: Add alternate pinmux for SDMMC2
pins 4-7")'
- commit 955de5111112 ("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>
dm: pinctrl: Use right device pointer for configuring pinctrl
commit 719cab6d2e2bf ("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: 719cab6d2e2bf ("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>
- 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().
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>
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>
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>
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>
Bin Meng [Thu, 16 Apr 2020 15:09:32 +0000 (08:09 -0700)]
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>
projects / u-boot.git / log