Commit graph

61949 commits

Author SHA1 Message Date
Kever Yang
fa2047c473 rockchip: rk3328: enable spl-fifo-mode for emmc and sdmmc
Since mmc to sram can't do dma, add patch to prevent aborts transfering
TF-A parts.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-31 15:57:55 +08:00
Kever Yang
09e70654a1 rockchip: rk3328: add COUNTER_FREQUENCY definition
The arch timer needs COUNTER_FREQUENCY to get correct counter, add it to
make the timer works correct.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-31 15:18:51 +08:00
Jeffy Chen
f43b0d49c0 rockchip: mkimage: fix wrong range of rc4 encoding for boot image
The rc4 encoding should cover spl header as well, and the file_size
contains spl header too.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 15:17:07 +08:00
Jeffy Chen
bcfb05cac8 doc: rockchip: document packing second level loader with mkimage
Add documentation about packing optional second level boot-loader with
mkimage tool.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 15:17:07 +08:00
Jeffy Chen
eea6cd8d7c rockchip: mkimage: support packing optional second level boot-loader
Support packing optional second level boot-loader:

$ ./tools/mkimage -n rk3399 -T rksd -d \
  rk3399_ddr_800MHz_v1.24.bin:rk3399_miniloader_v1.19.bin out -v
Adding Image rk3399_ddr_800MHz_v1.24.bin
Size 116492(pad to 116736)
Adding Image rk3399_miniloader_v1.19.bin
Size 88060(pad to 88064)
Image Type:   Rockchip RK33 (SD/MMC) boot image
Init Data Size: 116736 bytes
Boot Data Size: 88064 bytes

Mainly parse init file and boot file from datafile option, copy them to
the image with 2KB alignment.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 15:17:07 +08:00
Andy Yan
dcdea292d9 doc: rockchip: Fix reference the wrong defconfig name of ROC-CC-RK3308
The defconfig file for ROC-CC-RK3308 is roc-cc-rk3308_defconfig.

Fixes: 7f08bfb74f ("doc: rockchip: Add documentation for rk3308 based
boards")

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 14:26:13 +08:00
Andy Yan
0abe0af9ad rockchip: rk3308: allow loading larger kernel Image
When compile the curren mainline linux kernel(Linux 5.5-rc3)
with defconfig, the final Image is 29M, it's much
larger than Linux 5.4.

On the current u-boot side on rk3308, the gap between
kernel and fdt is 25M, the fdt will overwrite kernel
Image, so move ftd to a higher memory to give 34M
gab for them.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 14:26:13 +08:00
Thomas Hebb
d4e4187b8c rockchip: add description for TPL_ROCKCHIP_COMMON_BOARD
SPL_ROCKCHIP_COMMON_BOARD, an almost identical option, has a title but
this one doesn't for some reason. Add a description to make the menu
easier to read.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 14:26:13 +08:00
Kever Yang
3176d47d35 rockchip: px30-firefly add standalone dts
Firefly Core-PX30-JD4 use UART2M1 while PX30 evb using UART2M0, the U-Boot
proper will use the dts setting to do the IOMUX init, and a separate dts
is needed for px30-firefly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 14:26:13 +08:00
Kever Yang
b5dc3fbc29 rockchip: firefly-px30: Fix the MACRO for CONFIG_DEBUG_UART2_CHANNEL
The Macro has update without update the defconfig, update the defconfig
to make Mcaro correct.

Fixes: ec4fafdf1f ("rockchip: px30: Rename CONFIG_DEBUG_UART2_CHANNEL to...")
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 14:26:13 +08:00
Jack Mitchell
6d06ea3423 rockchip: make_fit_atf: explicitly use python3
On a distribution with no python2 installed and no
python->python3 symlink the script will fail to execute.
Specify python3 explicitly as it's already a requirement
to build u-boot.

Signed-off-by: Jack Mitchell <ml@embed.me.uk>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-27 14:26:13 +08:00
Kever Yang
29a4e35582 rockchip: rk3288-evb: update config to support OPTEE
Upstream kernel and rockchip kernel has default enable PSCI which needs
OPTEE in trust word, enable OPTEE support for evb by default and SPL_FIT
option to pack OPTEE with U-Boot proper.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-26 20:34:28 +08:00
Kever Yang
22aa2814e8 rockchip: rk3288-evb: update CONFIG_NR_DRAM_BANKS to 2
The OPTEE will use the ram start at 0x8400000 which make the DRAM be two
banks.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-26 20:34:28 +08:00
Kever Yang
4690ef8907 rockchip: rk3288-evb: update SPL_STACK/MALLOC_LEN config with rk3399
Update the SPL_STACK_R_MALLOC_SIMPLE_LEN which also including space for
STACK and the size may not enough when loding FIT image in SPL.

If the size is not enough, you can see log like this when loding FIT:

U-Boot TPL 2020.01-rc3-00082-g4b19b89ca4-dirty (Dec 05 2019 - 11:52:53)
Trying to boot from BOOTROM
Returning to boot ROM...
U-Boot SPL 2020.01-rc3-00082-g4b19b89ca4-dirty (Dec 05 2019 - 11:52:53 +0800)
Trying to boot from MMC2

And if enable the DEBUG for everyting in SPL, the log will hang at dwmmc
sending CMD16 for 'uboot' loadables binary because this step need a
large stack cost(about 0x2d00).

External data: dst=8400000, offset=72638, size=b3580
Image OS is Trusted Execution Environment
board_fit_config_name_match: rk3288-evb
Selecting config 'rk3288-evb'loadables: 'uboot'
blk_find_device: if_type=6, devnum=1: dwmmc@ff0c0000.blk, 6, 0
blk_find_device: if_type=6, devnum=1: dwmmc@ff0f0000.blk, 6, 1
Sending CMD16

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-26 20:34:28 +08:00
Kever Yang
7c337710fc rockchip: fit_spl_optee: get text and optee base from build
Instead of hardcode the base address, we can get them from the build
output, eg. get the SYS_TEXT_BASE from .config and get optee base from
DRAM_BASE.
We can use this script for SoCs with DRAM base not from 0x60000000(rk3229
and many other 32bit Rockchip SoCs), eg. rk3288 DRAM base is 0.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-26 20:34:28 +08:00
Tom Rini
d792b63feb Merge branch 'master' of git://git.denx.de/u-boot-usb
- dwc3 and cdns3 bug fixes
2019-12-22 09:14:35 -05:00
Tom Rini
1e104ac61f Merge branch 'master' of https://gitlab.denx.de/u-boot/custodians/u-boot-net
- Fix phy_connect() call in two drivers
- fw_setenv bugfix
2019-12-22 09:13:50 -05:00
Jagan Teki
5c207282f5 usb: dwc3: Fix UTMI/UTMIW phy interface initialization
DWC3 support phy interfaces like 8/16-bit UTMI+. phy interface
initialization code would handle them properly along with UNKNOWN
type by default if none of the user/board doesn't need to use the
phy interfaces at all.

The current code is masking the 8/16-bit UTMI+ interface bits globally
which indeed effect the UNKNOWN cases, therefore it effects the platforms
which are not using phy interfaces at all.

So, handle the phy masking bits accordingly on respective interface
type cases.

Fixes: 6b7ebff001 ("usb: dwc3: Add phy interface for dwc3_uboot")
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-12-21 20:35:16 +01:00
Heinrich Schuchardt
5c7fa84f4b MAINTAINERS: assign usb.c and and usb_kbd.c
Marek is already maintaining USB. Assign files common/usb.c and
common/usb_kbd.c to him.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-12-21 20:35:16 +01:00
Vignesh Raghavendra
bdf30e8490 usb: cdns3: ep0: Fix build warnings related to cache ops
Since, commit 62f9b65447 ("common: Move older CPU functions to their own header")
cache ops functions are declared in a separate header. Include the same
to avoid build warnings.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
2019-12-21 20:35:16 +01:00
Rasmus Villemoes
c62e6142b9 fw_setenv: avoid writing environment when nothing has changed
In the case where one deletes an already-non-existing variable, or sets
a variable to the value it already has, there is no point in writing the
environment back, thus reducing wear on the underlying storage
device.

In the case of redundant environments, if the two environments
differ (e.g. because one is corrupt), make sure that any call of
fw_setenv causes the two to become synchronized, even if the fw_setenv
call does not change anything in the good copy.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-12-20 10:02:24 -06:00
Alex Marginean
1785d8c3a5 drivers: net: bcm-sf2: pass -1 to phy_connect()
Passing 0 to PHY connect used to trigger a MDIO scan due to a bug fixed in
the meantime.  It's unclear if bcm-sf2 wants to connect to PHY @ addr 0 or
is scanning the bus, passing -1 here should keep it functional either way.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Cc: Jiandong Zheng <jdzheng@broadcom.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-12-20 10:02:23 -06:00
Marek Vasut
a9447c022d net: dwc_eth_qos: Pass -1 to phy_connect() to scan for all PHYs
PHY address 0 is a valid PHY address, to scan for all PHYs, pass -1 to
phy_connect(). Passing 0 used to work before be accident, but does no
longer.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-12-20 10:02:12 -06:00
Tom Rini
643366bcd5 - Fix stm32mp1 crash (bootstage) and warning (cls)
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Merge tag 'u-boot-stm32-20191218' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

- Fix stm32mp1 crash (bootstage) and warning (cls)
2019-12-18 08:25:49 -05:00
Patrick Delaunay
eddd79291d stm32mp1: configs: Resync with savedefconfig
Rsync all defconfig files using moveconfig.py

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-12-18 11:58:36 +01:00
Patrick Delaunay
16fec9b0bc stm32mp1: remove the imply BOOTSTAGE
This patch is only a temporarily workaround for crash introduced by
commit ac9cd4805c ("bootstage: Correct relocation algorithm").

The crash occurs because the bootstage struct is not correctly aligned
when BOOTSTAGE feature is activated.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-12-18 11:58:36 +01:00
Patrick Delaunay
eee15806fc stm32mp1: imply CMD_CLS
Activate by default the command CLS (clear screen);
this command used in pxe or sysboot command (DISTRO support)
when the "menu background" keyword is present.

This patch avoid the warning "Unknown command 'cls'"
with extlinux.conf:

# Generic Distro Configuration file generated by OpenEmbedded
menu title Select the boot mode
MENU BACKGROUND /splash.bmp
TIMEOUT 20
DEFAULT stm32mp157c-ev1-emmc
LABEL stm32mp157c-ev1-emmc
	KERNEL /uImage
	FDT /stm32mp157c-ev1.dtb
	APPEND root=/dev/mmcblk1p4 rootwait rw console=ttySTM0,115200

  ...
  Retrieving file: /mmc0_stm32mp157c-ev1_extlinux/extlinux.conf
  614 bytes read in 36 ms (16.6 KiB/s)
  Retrieving file: /splash.bmp
  46180 bytes read in 40 ms (1.1 MiB/s)
  Unknown command 'cls' - try 'help'
  Select the boot mode
  1:	stm32mp157c-ev1-sdcard
  ...

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-12-18 11:52:35 +01:00
Tom Rini
ef7c2af659 Prepare v2020.01-rc5
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-12-16 07:39:56 -05:00
Tom Rini
85432c69da Merge branch '2019-12-13-master-imports'
- Assorted minor fixes
2019-12-13 20:58:49 -05:00
Grygorii Strashko
7da4fb9235 arm: ti: dra7: move BOOTP_DNS2 and PHY_TI in defconfig
Move BOOTP_DNS2 and PHY_TI from dra7xx_evm.h to
dra7xx_evm_defconfig.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-12-13 13:01:54 -05:00
Heinrich Schuchardt
c013a2f785 common: remove duplicate typedef for uchar
With commit 37db55b7e9 ("linux/types.h: fix typo unchar") we have a
duplicate typedef for uchar. As linux/types.h is included in common.h we
don't need another typedef for uchar there.

Fixes: 37db55b7e9 ("linux/types.h: fix typo unchar")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2019-12-13 13:01:53 -05:00
Heinrich Schuchardt
97fd36933c doc: fitImage: example of a signature node
Describe that a signature node can be added to a binary device tree using
the mkimage tool.

Provide an example device tree node.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-12-13 13:01:53 -05:00
Heinrich Schuchardt
83c646c05e mailmap: Update mail address for Boris Brezillon
Boris' email address has changed. Copy two entries from the Linux .mailmap
file.

Boris confirmed the new email address:
https://lists.denx.de/pipermail/u-boot/2019-December/393774.html

Cc: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-12-13 13:01:53 -05:00
Rasmus Villemoes
93ce16fd0a doc: really get rid of Documentation/ directory
Commit 656d8da9d2 (doc: Remove duplicated documentation directory) got
rid of most of Documentation/. But there's still an obviously useless
.gitignore left behind.

Also, there's a copy of the linux kernel's net/ethernet.txt binding
imported from v5.0, while the existing one in doc/ is from 4.0-rc1. So
replace the latter by the former, and making Documentation/ finally
empty.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-12-13 13:01:53 -05:00
Rasmus Villemoes
875669da3b sysreset_mpc83xx: fix mcp83xx -> mpc83xx typo
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2019-12-13 13:01:53 -05:00
Hannes Schmelzer
05767707a8 dts: am335x-brsmarc1/xre1: insert phy_id again
commit 3b3e8a37d3
("arm: dts: am335x: sync cpsw/mdio/phy with latest linux - drop phy_id")

did sync with recent linux kernel and replaced therefore the 'phy_id'
property with a phy-handle pointing to the mdio.

This is OK for linux, but introduces trouble with the already running
vxWorks on this target.

So this commit here re-inerts the phy_id property beside the phy-handle
property to be compatible with both.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-12-13 13:01:12 -05:00
Tom Rini
f39abbbc53 - fix DRAM bank detection for unified binary
- fix 32bit RPi4 config
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Merge tag 'rpi-next-2020.01.2' of https://gitlab.denx.de/u-boot/custodians/u-boot-raspberrypi

- fix DRAM bank detection for unified binary
- fix 32bit RPi4 config
2019-12-11 09:29:39 -05:00
Tom Rini
3031cdede1 Merge tag 'fix-for-2020.01' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c
i2c bugfixes for 2020.01
- i2c: i2c_cdns: fix write timeout on fifo boundary
  fixes timout issue when writting number of bytes is multiple
  of the FIFO depth.
2019-12-11 08:17:19 -05:00
Tom Rini
addb1d9f5d First set of u-boot-atmel fixes for 2020.01 cycle
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Merge tag 'u-boot-atmel-fixes-2020.01-a' of https://gitlab.denx.de/u-boot/custodians/u-boot-atmel

- First set of u-boot-atmel fixes for 2020.01 cycle:
  This set includes a small fix for gpio bank names, one for removing
  unused headers (also touches some other boards), and a fix for the QSPI
  env read on one of the boards.
2019-12-11 08:16:16 -05:00
Matthias Brugger
e5167465a1 ARM: defconfig: Fix 32bit config for RPi4
The rpi_4_32b_defconfig states that only one DRAM bank is present. This
leads to a wrong configuration of the available DRAM. Fix this by
setting the DRAM bank config accordingly.

Fixes: 193279d784 ("RPI: Add defconfigs for rpi4 (32/64)")

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-12-11 10:14:13 +01:00
Matthias Brugger
a63f81c242 rpi: Enable DRAM bank initialization on arm64
Up to now we only update the DRAM banks when we are define
CONFIG_BCM2711. But our one binary approach uses a config that supports
BCM2837 and BCM2711. As a result we only see one gibibyte of RAM on
Raspberry Pi 4, even if it has more RAM.
Fix this by calling dram_init_banksize.

Fixes: 5694090670 ("ARM: defconfig: add unified config for RPi3 and RPi4")

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-12-11 10:14:12 +01:00
Matthias Brugger
e19cfcc07a rpi: fix dram bank initialization
To update the dram bank information from device-tree we use
fdtdec_decode_ram_size() which expectes the the size-cells and
address-cells to be defined in the memory node. For normal system RAM
these values are defined in the root node. When the values differ from
the default values defined in the spec, we can end up with wrong RAM
bank information.

Switch to the "standard" way to update the RAM bank information to
avoid this.

Fixes: 9de5b89e4c ("rpi4: enable dram bank initialization")

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-12-11 10:14:12 +01:00
Michael Auchter
3104162a8b i2c: i2c_cdns: fix write timeout on fifo boundary
This fixes an issue that would cause I2C writes to timeout when the
number of bytes is a multiple of the FIFO depth (i.e. 16 bytes).

Within the transfer loop, after writing the data register with a new
byte to transfer, if the transfer size equals the FIFO depth, the loop
pauses until the INTERRUPT_COMP bit asserts to indicate data has been
sent. This same check is performed after the loop as well to ensure data
has been transferred prior to returning.

In the case where the amount of data to be written is a multiple of the
FIFO depth, the transfer loop would wait for the INTERRUPT_COMP bit to
assert after writing the final byte, and then wait for this bit to
assert once more. However, since the transfer has finished at this
point, no new data has been written to the data register, and hence
INTERRUPT_COMP will never assert.

Fix this by only waiting for INTERRUPT_COMP in the transfer loop if
there's still data to be written.

Signed-off-by: Michael Auchter <michael.auchter@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-12-11 06:25:13 +01:00
Tom Rini
fd4b8f813f - fix crash and board reset when drawing RLE8 bitmaps
bigger than the framebuffer resolution
 - reduce dead code in video and console uclass routines
   (tested on mx53cx9020, sama5d2_xplained, stm32mp157c-ev1,
    stm32f746-disco, stm32f769-disco and wandboard)
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Merge tag 'fixes-for-2020.01' of https://gitlab.denx.de/u-boot/custodians/u-boot-video

- fix crash and board reset when drawing RLE8 bitmaps
  bigger than the framebuffer resolution
- reduce dead code in video and console uclass routines
  (tested on mx53cx9020, sama5d2_xplained, stm32mp157c-ev1,
   stm32f746-disco, stm32f769-disco and wandboard)
2019-12-10 15:41:15 -05:00
Swapna Gurumani
e50d238a1c configs: sama5d27_som1_ek: Add default config to read ENV from QSPI
In the initial SPI flash setup, the default bus mode being used was 3,
which is incorrect, causing a CRC error when the ENV was being read from
QSPI. Setting the default bus mode to 0 which is the correct mode.

Signed-off-by: Swapna Gurumani <swapna.gurumani@microchip.com>
2019-12-10 12:43:50 +02:00
Tom Rini
520f955902 Merge branch 'master' of https://gitlab.denx.de/u-boot/custodians/u-boot-riscv
- Increase stack size to avoid a stack overflow during distro boot.
- Add hifive-unleashed-a00.dts for SIFIVE FU540.
- Add OF_SEPARATE support for SIFIVE FU540.
- Add SPL support for Andes AX25 AE350.
- Improve U-Boot SPL / OpenSBI smp boot flow for RISC-V.
2019-12-09 21:53:23 -05:00
Lukas Auer
0e1233ce90 spl: opensbi: wait for ack from secondary harts before entering OpenSBI
At the start, OpenSBI relocates itself to its link address. If the link
address ranges of U-Boot SPL and OpenSBI overlap, the relocation can
lead to code corruption if a hart is still running U-Boot SPL during
relocation. To avoid this problem, the main hart is specified as the
preferred boot hart to perform the relocation. This fixes the code
corruption problems based on the assumption that since the main hart
schedules the secondary harts to enter OpenSBI, it will be the last to
enter OpenSBI. However it was reported that this assumption is not
always correct.

To make sure the assumption always holds true, wait for all secondary
harts to acknowledge the call-function request before entering OpenSBI
on the main hart.

Reported-by: Rick Chen <rick@andestech.com>
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-12-10 08:23:10 +08:00
Lukas Auer
90ae281437 riscv: add option to wait for ack from secondary harts in smp functions
Add a wait option to smp_call_function() to wait for the secondary harts
to acknowledge the call-function request. The request is considered to
be acknowledged once each secondary hart has cleared the corresponding
IPI.

As part of the call-function request, the secondary harts invalidate the
instruction cache after clearing the IPI. This adds a delay between
acknowledgment (clear IPI) and fulfillment (call function) of the
request. We want to use the acknowledgment to be able to judge when the
request has been completed. Remove the delay by clearing the IPI after
cache invalidation and just before calling the function from the
request.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-12-10 08:23:10 +08:00
Lukas Auer
8b3e97badf riscv: add functions for reading the IPI status
Add the function riscv_get_ipi() for reading the pending status of IPIs.
The supported controllers are Andes' Platform Level Interrupt Controller
(PLIC), the Supervisor Binary Interface (SBI), and SiFive's Core Local
Interruptor (CLINT).

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Rick Chen <rick@andestech.com>
2019-12-10 08:23:10 +08:00
Lukas Auer
b86f6d1e64 spl: opensbi: specify main hart as preferred boot hart
OpenSBI uses a relocation lottery to determine the hart to relocate
OpenSBI to its link address. In the U-Boot SPL boot flow, the main hart
schedules the secondary harts to enter OpenSBI before doing so itself.
One of the secondary harts will therefore always be the winner of the
relocation lottery. This is problematic if the link address ranges of
OpenSBI and U-Boot SPL overlap. OpenSBI will be relocated and therefore
overwrite U-Boot SPL while some harts may still run it, leading to code
corruption.

Avoid this problem by specifying the main hart as the preferred boot
hart to perform the OpenSBI relocation. The main hart will be the last
hart to enter OpenSBI, relocation can therefore occur safely.

The boot hart field was added to version 2 of the OpenSBI FW_DYNAMIC
info structure. The header file include/opensbi.h is synchronized with
include/sbi/fw_dynamic.h from the OpenSBI project to update the info
structure. The header file is recent as of commit
7a13beb21326 ("firmware: Add preferred boot HART field in struct
fw_dynamic_info").

Reported-by: Rick Chen <rick@andestech.com>
Suggested-by: Anup Patel <Anup.Patel@wdc.com>
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-12-10 08:23:10 +08:00