Commit graph

89082 commits

Author SHA1 Message Date
Tom Rini
70c45244d9 - fix NULL dereference in vidconsole_measure()
- fix simplefb format for raspberrypi-4b
  - fix typo in Kconfig
 -----BEGIN PGP SIGNATURE-----
 
 iGwEABECACwWIQSC4hxrSoIUVfFO0kRM6ATMmsalXAUCZNnCUQ4cYWd1c3RAZGVu
 eC5kZQAKCRBM6ATMmsalXNeWAJ9UAkaoM0B7iTAieOTSFhQNYVXlRQCeNTEISsLe
 lfCsmvp0A6Fa+8dq9s0=
 =Xt1C
 -----END PGP SIGNATURE-----

Merge tag 'video-20230814' of https://source.denx.de/u-boot/custodians/u-boot-video

 - fix NULL dereference in vidconsole_measure()
 - fix simplefb format for raspberrypi-4b
 - fix typo in Kconfig
2023-08-14 09:09:23 -04:00
Jonas Karlman
d7009faa09 pinctrl: rockchip: Fix drive and input schmitt on RK3568
On RK3568 most pins have a configurable drive strength of level 0-5 and
some pins level 0-11. When rk3568_set_drive is called with a strength
value above 7 the drv value written to reg may overflow into the write
enable bits, resulting in a bad configuration.

This cause e.g. ethernet PHY on Radxa CM3-IO board not to work after
drive is configured according to the device tree.

  Could not get PHY for ethernet@fe010000: addr 0

Level 6-11 can be configured using a second reg for some pins, however
the drv value is reused resulting in lower 6 bits being written to reg.

Input schmitt is configured in 2-bit fields on RK3568 compared to
earlier generation and 2'b10 should be used to enable input schmitt.

Change to use regmap_update_bits with a rmask to fix the overflow issue
and closer match the linux driver. Bit shift the drv value used for the
second reg to configure drive strength level 6-11. Also write correct
values for input schmitt setting.

Fixes: 1977d746aa ("rockchip: rk3568: add rk3568 pinctrl driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-14 11:07:27 +08:00
Meng Li
04cc66c047 rpi: set the correct parameter for simple framebuffer node
When raspberrpi-4b platform  boots up, there are 2 sets of same bootup
log displayed on HDMI monitor screen, it looks like the screen is split
into 2 parts. The root cause is that video format of u-boot is different
from kernel. The fixing "a8r8g8b8" video format is used in u-boot, but
"r5g6b5" video format from framebuffer node is used in kernel image. In
order to avoid weird display status on screen, it needs to set the correct
parameter for simple framebuffer node even if it has existed.

Signed-off-by: Meng Li <Meng.Li@windriver.com>
2023-08-13 23:57:46 +02:00
Jason Wessel
28cd244e84 bcm2835: Add simiple-framebuffer for use with fkms
When the fkms dtb overlay is used only the simple-framebuffer is
presented as a usable video display. So, add "simple-framebuffer"
compatible to enable video driver bcm2835.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
2023-08-13 23:55:57 +02:00
Bin Meng
aba6776a71 video: kconfig: Fix a typo in SPL_VIDEO_REMOVE
Add one space between 'before' and 'loading'.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-08-13 23:09:23 +02:00
Bin Meng
01c76f1a64 video: vidconsole: Fix null dereference of ops->measure
At present vidconsole_measure() tests ops->select_font before calling
ops->measure, which would result in a null dereference when the console
driver provides no ops for measure.

Fixes: b828ed7d79 ("console: Allow measuring the bounding box of text")
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-08-13 23:08:15 +02:00
Hai Pham
bb89d926fc ARM: rmobile: Update little‐endian byte order option in srec_cat command
Since srecord v1.60, option "-Little_Endian_CONSTant" is deprecated.
Fix the build warnings by updating little‐endian byte order option in
srec_cat command when generating loader header.

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2023-08-13 00:05:38 +02:00
Marek Vasut
a2bd99549c clk: renesas: Tear clock controller down last before booting OS
Once all the other drivers got torn down in preparation for the OS
to start, tear down the clock controller last. The clock controller
must be torn down last as some of the clock which get turned off
might have still been needed during the teardown stage of the other
drivers.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Tam Nguyen <tam.nguyen.xa@renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
2023-08-13 00:03:36 +02:00
FUKAUMI Naoki
a73a28b329 rockchip: MAINTAINERS: fix board name for Radxa ROCK 4C+
align with other ROCK series.

Fixes: 2b506407c8 ("rockchip: Add MAINTAINERS entry for Radxa Rock 4C+")
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:39:51 +08:00
Massimo Pegorer
c71321c7c6 dts: rockchip: rk3308: Avoid warning for serial probe on prereloc
Make device tree complete and consistent for pre relocation phase. Some
nodes are missing, causing warnings to be issued on serial port probing
during pre relocation phase (uclass_get_device_by_phandle_id fails when
called by pinctrl_select_state_full: none of these failures is fatal
nor causing issues). Add to *-u-boot.dtsi all required nodes with the
'bootph-some-ram' attribute.

Signed-off-by: Massimo Pegorer <massimo.pegorer+oss@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:37:57 +08:00
Massimo Pegorer
0cd87aac5c clk: rockchip: rk3308: Support reading UART rate and clock registers
Add support to read RK3308 registers used to configure UART clocks, and
thus to get UART rate and baudrate. This fixes clock_get_rate returning
error on serial device probing. Moreover, there is no need anymore to
use 'clock-frequency' property for UART nodes in *-u-boot.dtsi files
for all cases where UART is not inited by U-Boot proper or by SPL o by
TPL code but by a preliminary external boot phase (for Rock PI S, UART
is inited by external TPL).

Signed-off-by: Massimo Pegorer <massimo.pegorer+oss@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:37:57 +08:00
Massimo Pegorer
e4c6ccc687 clk: rockchip: rk3308: Fix ordering between masking and shifting
As per definitions of masks and shift offsets in cru_rk3308.h, values
read from registers must be first masked and then shifted. By the way,
this fix is binary invariant, because in all of fixed cases the shift
offset is zero.

Signed-off-by: Massimo Pegorer <massimo.pegorer+oss@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:37:57 +08:00
Massimo Pegorer
36adce7372 rockchip: spl: Drop out of scope debug message related to uart init
Debug uart is no more inited in board_init_f function: remove this
debug message from board_init_f. If an earliest-as-possible message
after debug uart initialization is needed, enable DEBUG_UART_ANNOUNCE
Kconfig option, instead.

Signed-off-by: Massimo Pegorer <massimo.pegorer+oss@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:37:32 +08:00
Massimo Pegorer
08e74ac3d9 rockchip: spl: Drop useless call to debug_uart_init
Since commit 0dba45864b ("arm: Init the debug UART") function
debug_uart_init is called in crt files _main before calling
board_init_f. Therefore, there is no need to call it again
inside board_init_f implementation in arm/mach-rockchip/spl.c.

Signed-off-by: Massimo Pegorer <massimo.pegorer+oss@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:37:32 +08:00
Jonas Karlman
520fece4ca rockchip: rk356x-u-boot: Set max-frequency prop in sdhci node
Most board device trees for RK356x set max-frequency = <200000000> in
the sdhci node, some boards like Quartz64 do not. This result in an
error message due to sdhci driver trying to set a clock rate of 0
instead of the max-frequency value.

  rockchip_sdhci_probe clk set rate fail!

Fix this by setting a common max-frequency in rk356x-u-boot.dtsi. A
patch to set default max-frequency of sdhci node in linux is planned.

Also remove the forced status = "okay" for the sdhci and sdmmc0 nodes,
boards already set correct state for these nodes.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:35:35 +08:00
Jonas Karlman
9296f9a8d7 clk: rockchip: rk3568: Add dummy support for GMAC speed clocks
Pine64 Quartz64 boards DT reference SCLK_GMAC1_RGMII_SPEED in the
assigned-clocks property of the gmac1 node. This result in a ENOENT
error when driver core tries to set a parent for this clock.

The clock speed in rgmii/rmii mode is changed using clk_set_rate of the
tx_rx clock and not using clk_set_parent of the speed clock.

Add dummy support for SCLK_GMAC1_RGMII_SPEED and similar clocks to clk
driver to allow a driver for gmac node to probe.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:35:35 +08:00
Jonas Karlman
ff46cd5631 clk: rockchip: rk3568: Include UART clocks in SPL
The clock driver for RK3568 does not include support for UART clocks in
SPL. This result in the following message with high enough loglevel.

  ns16550_serial serial@fe660000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19

Fix this by including support for UART clocks in SPL.

Fixes: 4a262feba3 ("rockchip: rk3568: add clock driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Eugen Hristev <eugen.hristev@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:35:35 +08:00
Jonas Karlman
6da8400d7a clk: rockchip: rk3568: Fix mask for clk_cpll_div_25m_div
The field for clk_cpll_div_25m_div in CRU_CLKSEL_CON81 is 6 bits wide,
not 5 bits wide as currently defined in CPLL_25M_DIV_MASK.

Fix this and the assert so that CPLL_25M can be assigned a 25 MHz rate.

Fixes: 4a262feba3 ("rockchip: rk3568: add clock driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:35:35 +08:00
Damon Ding
acb9812034 clk: rockchip: rk3568: Fix clk selection in rk3568_pwm_get_clk
Fix use of wrong clk selection for CLK_PWM1 on RK3568.

Fixes: 4a262feba3 ("rockchip: rk3568: add clock driver")
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:35:35 +08:00
Anton
6e710897aa rockchip: cru: Enable cpu info support for rk3568
Add cru structure definition in head file to support cpu_info driver.

Series-version: 2
Series-changes: 2
Format the patch header, add commit message and signature.

Signed-off-by: Anton <vao@asu-vei.ru>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:28:30 +08:00
Alvaro Fernando García
8300cebcd6 video: avoid build failure on veyron board
533ad9dc avoided an overflow but causes compilation
failure on 32bit boards (eg. veyron speedy)

this commit uses div_u64 which has a fallback codepath
for 32bit platforms

Signed-off-by: Alvaro Fernando García <alvarofernandogarcia@gmail.com>
Tested-by: Simon Glass <sjg@chromium.org>  # chromebook_jerry
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:18:12 +08:00
Andy Yan
bb38db086c rockchip: rk3568: Add EmbedFire Lubancat 2 support
LubanCat2 is a rk3568 based SBC from EmbedFire.

Specification:
- Rockchip rk3568
- LPDDR4/4X 1/2/4/8 GB
- TF scard slot
- eMMC 8/32/64/128 GB
- Gigabit ethernet x 2
- HDMI out
- USB 2.0 Host x 1
- USB 2.0 Type-C OTG x 1
- USB 3.0 Host x 1
- Mini PCIE interface for WIFI/BT module
- M.2 key for 2280 NVME
- 40 pin header

The dts file is sync from linux mainline.

Signed-off-by: Andy Yan <andyshrk@163.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:17:59 +08:00
Jagan Teki
2fa09b455a rockchip: rv1126: Enable fdtoverlay support
Add fdtoverlay_addr_r and enable OF_LIBFDT_OVERLAY for the
use of DT overlay in RV1126.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:14:51 +08:00
Peter Robinson
10e38327f0 rockchip: dts: rk3328: rock64: Align spi flash entry
Align the SPI flash entry with upstream. There's no need
to diverge here.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:13:44 +08:00
Peter Robinson
080030f276 rockchip: dts: rk3328: Add rng details to u-boot.dtsi
Add the rk3328 rng details to the u-boot.dtsi and
enable the RNG on the Rock64 to be able to provide
a random seed via UEFI.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
(Fix typo message)
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:13:14 +08:00
Peter Robinson
a13a7a0b45 config: rock64: enable efuse for stable mac addr
Enable the rockchip efuse driver on the Rock64 to
provide a stable ethernet address on the device.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 10:13:06 +08:00
Jonas Karlman
0e2474f550 pci: rockchip: Release resources on failing probe
The PCIe driver for RK3399 is affected by a similar issue that was fixed
for RK35xx in the commit e04b67a7f4 ("pci: pcie_dw_rockchip: release
resources on failing probe").

Resources are not released on failing probe, e.g. regulators may be left
enabled and the ep-gpio may be left in a requested state.

Change to use regulator_set_enable_if_allowed and disable regulators
after failure to keep regulator enable count balanced, ep-gpio is also
released on regulator failure.

Also add support for the vpcie12v-supply, remove unused include and
check return value from dev_read_addr_name.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-08-12 09:59:18 +08:00
Quentin Schulz
e5422ea512 rockchip: rk3399: remove duplicate call to regulators_enable_boot_on
An earlier commit makes the common SPL code call
regulators_enable_boot_on and regulators_enable_boot_off before
iterating over possible boot media for U-Boot proper. There is therefore
no need to do this in the rk3399-specific code, so let's remove it.

Cc: Quentin Schulz <foss+uboot@0leil.net>
Tested-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2023-08-12 09:58:55 +08:00
Simon Glass
daffb0be2c bootstd: cros: Add ARM support
Support booting ChromiumOS on ARM devices using FIT. Add an entry into the
boot implementation which does not require a command line. This can be
expanded over time as the bootm code is refactored.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-11 07:33:40 -06:00
Simon Glass
c279224ea6 bootstd: Add a command to read all files for a bootflow
Some bootflows (such as EFI and ChromiumOS) delay reading the kernel until
it is needed to boot. This saves time when scanning and avoids needing to
allocate memory for something that may never be used.

To permit reading of these files, add a new 'bootflow read' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-11 07:33:38 -06:00
Simon Glass
cbb607d2d9 bootstd: Allow display of the x86 setup information
Provide an option to dump this information if available.

Move the funciion prototype to the common x86 header. Allow the command
line to be left out since 'bootflow info' show this itself and it is
not in the correct place in memory until the kernel is actually booted.

Fix a badly aligned heading while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
598dea978d bootstd: cros: Split up reading info and kernel
Use the two new functions to separate reading of the ChromiumOS info from
the partition from actually reading the kernel and booting it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
074503c40a bootstd: cros: Add a function to read a kernel
The code to read the ChromiumOS information from the partition is
currently all in one function.

Create a new function which reads the kernel, assuming that the metadata
has been parsed.

For now this function is not used. Future work will plumb it in.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
f861b1ee70 bootstd: cros: Add a function to read info from partition
The code to read the ChromiumOS information from the partition is
currently all in one function. It reads the entire kernel, which is
unnecessary unless it is to be booted.

Create a new function which reads just the minimum required data from the
disk, then obtains what it needs from there.

For now this function is not used. Future work will plumb it in.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
76bd6844dc bootstd: Add private bootmeth data to the bootflow
Some bootmeths need to store their own information related to the
bootflow, in addition to the generic information in struct bootflow.
Add a pointer for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
1d4bbdf3e4 bootstd: cros: Add private info for ChromiumOS
Create a new private structure to hold information gleaned from the disk.
This will allow separation between reading of the bootflow information and
(later) reading the whole kernel.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
b7ed5386a4 bootstd: cros: Add docs for the kernel layout
Provide brief documentation about the ChromiumOS kernel layout.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
1a0810924a bootstd: Move common zimage functions to bootm.h
We want to avoid using #ifdefs around header files and in the code. It
makes sense to collect the various functions used for loading images into
a single header which can be included by all architectures. The best place
for this is the arch-neutral bootm.h header, so use that.

Move some zimage functions into this bootm.h header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
c5dca50bbb bootstd: cros: Simplify setup and cmdline expressions
Create a common base from which the other parts are offset and make all
of the offsets related to that. This makes the code a little easier to
read.

Use X86_ prefixes for the two values which are x86-specific.

Drop OFFSET_BASE since it is available in a header field.

Drop the unnecessary 'start' variable too.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
3257835e56 bootstd: cros: Decode some kernel preamble fields
Decode the kernel start and size using the structures provided. This
accesses the same data, just in a cleaner way.

Add some logging for some of the fields in the kernel preamble.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
4cfe4510f1 bootstd: cros: Support a kernel on either partition
ChromiumOS allows a kernel to be on either partition 2 or 4. Add support
for scanning both and using the first one we find with a suitable
signature.

Record the partition which is used.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
de30aa9a2f bootstd: cros: Bring in some ChromiumOS structures
Add a header file with structures for booting ChromiumOS, taken from the
vboot tree. Using these makes it easier to understand the code.

Note that the code style has not been updated for U-Boot, with use of
uint64_t,  __attribute__((packed)) and one comment-style nit. This should
make it easier to keep the code in sync. It was taken from commit:

   5b8596ce ("2sha256_arm: Fix data abort issue")

Update the CHROMEOS string to use the defined values.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
5a8589ebd6 bootstd: cros: Move partition reading into a function
Move the code which reads a partition into its own function. Add a
constant for the number of bytes to 'probe' at the start of the partition.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Simon Glass
defa33ad29 bootstd: cros: Correct reporting of I/O errors
Return -EIO when the read failed, rather than the number of blocks read.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-10 18:34:54 -06:00
Tom Rini
a5899cc69a Merge https://source.denx.de/u-boot/custodians/u-boot-watchdog
- cmd: cyclic: Remove duplicate command name in help text (Alexander)
- ftwdt010: need to reset watchdog in ftwdt010_wdt_start() (Sergei)
2023-08-10 11:40:09 -04:00
Tom Rini
824f104422 Merge https://source.denx.de/u-boot/custodians/u-boot-riscv
+ Add USB host support on VisionFive2 board
+ Enable SPI flash support on VisionFive2 board
+ Enable Random Number Generator in RISC-V QEMU board
+ Display new SBI extension
+ Add SPL_ZERO_MEM_BEFORE_USE Kconfig for jh7110 L2 LIM
  (Loosely-Integrated Memory)
2023-08-10 10:36:43 -04:00
Sergei Antonov
160984ed3a watchdog: ftwdt010: need to reset watchdog in ftwdt010_wdt_start()
ftwdt010_wdt_start() has to call ftwdt010_wdt_reset() after setting-up
the timeout in the same fashion ftwdt010_wdt_expire_now() does it.

Without this patch the "wdt start <ms>" command does not actually start
the watchdog timer until the "wdt reset" command is executed.

Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2023-08-10 08:39:16 +02:00
Alexander Dahl
8ba4eae01d cmd: cyclic: Remove duplicate command name in help text
Function 'cmd_usage()' already prints one command in usage before
printing out the help text given to the U_BOOT_CMD_WITH_SUBCMDS macro.

Wrong previous output:

    Usage:
    cyclic cyclic demo <cycletime_ms> <delay_us> - register cyclic demo function
    cyclic list - list cyclic functions

Signed-off-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2023-08-10 08:39:11 +02:00
Shengyu Qu
47ed15125c riscv: cpu: jh7110: Select SPL_ZERO_MEM_BEFORE_USE
Add Kconfig item for Starfive JH7110 to select SPL_ZERO_MEM_BEFORE_USE.

Signed-off-by: Bo Gan <ganboing@gmail.com>
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-08-10 10:58:55 +08:00
Shengyu Qu
6419f8e9fd riscv: Add SPL_ZERO_MEM_BEFORE_USE implementation
Add the actual support code for SPL_ZERO_MEM_BEFORE_USE and remove
existing Starfive JH7110's L2 LIM clean code, since existing code has
following issues:
 1. Each hart (in the middle of a function call) overwriting its own
    stack and other harts' stacks.
    (data-race and data-corruption)
 2. Lottery winner hart can be doing "board_init_f_init_reserve",
    while other harts are in the middle of zeroing L2 LIM.
    (data-race)

Signed-off-by: Bo Gan <ganboing@gmail.com>
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-08-10 10:58:12 +08:00