Commit Graph

59642 Commits

Author SHA1 Message Date
Patrick Delaunay
178a415534 stpmic1: program pmic to keep only the debug unit on
Depending on backup register value, we maintain the debug unit
powered-on for debugging purpose.
Only BUCK1 is required for powering the debug unit, so revert
the setting for all the other power lanes, except BUCK3 that
has to be always on.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
17ac2150c3 dt-bindings: clock: stm32mp1: support disabled fixed clock
Add precision for disabled fixed clock in stm32mp1 binding.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
7acda7eae5 ARM: dts: stm32mp1: add pull-up on serial rx of console connected to STLINK
Avoid U-Boot auto-boot interruption for line break detection
on console when the RX line connected to STLINK is floating
(-IO error in getc cause by framing error and testc return 1)
Same workaround is applied on all the STMicroelectonics board.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
9c2214b489 ARM: dts: stm32mp1: add key support on DK1/DK2
Allow to use PA13 and PA14 to force fastboot mode or STM32CubeProgrammer
mode.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
2c2580984a ARM: dts: stm32mp1: add ldtc pre-reloc proper in SOC file
The pre-relocation probe is needed to reserve video frame buffer
in video_reserve() for all the board;
LDTC must be tagged prereloc in SOC U-Boot dtsi file.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
67b7684f8c ARM: dts: stm32mp1: Add PSCI node access before relocation
Add node in DT and avoid error to search UCLASS_SYSRESET in
board_f.c::print_resetinfo() and lost 1.6s in U-Boot
for the trusted boot chain.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
6d923007d6 ARM: dts: stm32mp1: Add iwdg2 support for SPL
This patch adds independent watchdog support for stm32mp157c
in SPL.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
be16c41f85 ARM: dts: stm32mp1: DDR config v1.45
Update DDR configuration with the latest update:
- Change DQSGE to 1 for DDR3, to cure missing DQS preamble.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
fe91533644 ARM: dts: stm32mp1: sync device tree with v5.3-rc2
Synchronize device tree with v5.3-rc2 label and
update the associated u-boot dtsi.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
abee80d789 pinctrl: stmfx: update pinconf settings
Alignment with kernel driver.

According to the following tab (coming from STMFX datasheet), updates
have to done in stmfx_pinctrl_conf_set function:

-"type" has to be set when "bias" is configured as "pull-up or pull-down"
-PIN_CONFIG_DRIVE_PUSH_PULL should only be used when gpio is configured as
 output. There is so no need to check direction.

  DIR | TYPE | PUPD | MFX GPIO configuration
  ----|------|------|---------------------------------------------------
  1   | 1    | 1    | OUTPUT open drain with internal pull-up resistor
  ----|------|------|---------------------------------------------------
  1   | 1    | 0    | OUTPUT open drain with internal pull-down resistor
  ----|------|------|---------------------------------------------------
  1   | 0    | 0/1  | OUTPUT push pull no pull
  ----|------|------|---------------------------------------------------
  0   | 1    | 1    | INPUT with internal pull-up resistor
  ----|------|------|---------------------------------------------------
  0   | 1    | 0    | INPUT with internal pull-down resistor
  ----|------|------|---------------------------------------------------
  0   | 0    | 1    | INPUT floating
  ----|------|------|---------------------------------------------------
  0   | 0    | 0    | analog (GPIO not used, default setting)

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrice Chotard
7385826475 pinctrl: pinctrl_stm32: cosmetic: Reorder include files
Reorder include files

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
4953f6c84d stm32mp1: cosmetic: remove comment
Remove unnecessary comment.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrick Delaunay
fed51572c8 rtc: stm32: manage 2 digit limitation on year
STM32 RTC manages only 2 digits for YEAR
(Year tens and units in BCD format in RTC_DR register).

With this patch, RTC driver assumes that tm->tm_years is between
2000 and 2099; tm->tm_year - 2000 have only 2 digit
(0 > and <= 99).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 09:36:56 +02:00
Patrice Chotard
0203050e57 ARM: dts: stih410-b2260: Sync DT with kernel v5.2
Synchronize U-boot DT with kernel v5.2 for stih410-b2260.
Update stih410-b2260-u-boot.dtsi accordingly.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2019-08-27 09:36:56 +02:00
Patrice Chotard
2e01fcf17c mmc: sti_sdhci: Fix sdhci_setup_cfg() call.
host->mmc, host->mmc->dev and host->mmc->priv must be set
before calling sdhci_setup_cfg() to avoid hang during mmc
initialization.

Thanks to commit 3d296365e4
("mmc: sdhci: Add support for sdhci-caps-mask") which put
this issue into evidence.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-08-27 09:36:56 +02:00
Patrice Chotard
23441fbf2b mmc: stm32_sdmmc2: Increase SDMMC_BUSYD0END_TIMEOUT_US
Increase SDMMC_BUSYD0END_TIMEOUT_US from 1s to 2s to
avoid timeout error during blocks erase on some sdcard

Issue seen on Kingston 16GB :
  Device: STM32 SDMMC2
  Manufacturer ID: 27
  OEM: 5048
  Name: SD16G
  Bus Speed: 50000000
  Mode: SD High Speed (50MHz)
  card capabilities: widths [4, 1] modes [SD Legacy, SD High Speed (50MHz)]
  host capabilities: widths [4, 1] modes [MMC legacy, SD Legacy, MMC High Speed (26MHz), SD High Speed (50MHz), MMC High Speed (52MHz)]
  Rd Block Len: 512
  SD version 3.0
  High Capacity: Yes
  Capacity: 14.5 GiB
  Bus Width: 4-bit
  Erase Group Size: 512 Bytes

Issue reproduced with following command:

STM32MP> mmc erase 0 100000

MMC erase: dev # 0, block # 0, count 1048576 ... mmc erase failed
16384 blocks erased: ERROR

By setting SDMMC_BUSYD0END_TIMEOUT_US at 2 seconds and by adding
time measurement in stm32_sdmmc2_end_cmd() as shown below:

	+start = get_timer(0);
	/* Polling status register */
	ret = readl_poll_timeout(priv->base + SDMMC_STA,
				 status, status & mask,
 				 SDMMC_BUSYD0END_TIMEOUT_US);

	+printf("time = %ld ms\n", get_timer(start));

We get the following trace:

STM32MP> mmc erase 0  100000

MMC erase: dev # 0, block # 0, count 1048576 ...
time = 17 ms
time = 1 ms
time = 1025 ms
time = 54 ms
time = 56 ms
time = 1021 ms
time = 57 ms
time = 56 ms
time = 1020 ms
time = 53 ms
time = 57 ms
time = 1021 ms
time = 53 ms
time = 57 ms
time = 1313 ms
time = 54 ms
time = 56 ms
time = 1026 ms
time = 54 ms
time = 56 ms
time = 1036 ms
time = 54 ms
time = 56 ms
time = 1028 ms
time = 53 ms
time = 56 ms
time = 1027 ms
time = 54 ms
time = 56 ms
time = 1024 ms
time = 54 ms
time = 56 ms
time = 1020 ms
time = 54 ms
time = 57 ms
time = 1023 ms
time = 54 ms
time = 56 ms
time = 1033 ms
time = 53 ms
time = 57 ms
....
time = 53 ms
time = 57 ms
time = 1021 ms
time = 56 ms
time = 56 ms
time = 1026 ms
time = 54 ms
time = 56 ms
1048576 blocks erased: OK

We see that 1 second timeout is not enough, we also see one measurement
up to 1313 ms. Set the timeout to 2 second to keep a security margin.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2019-08-27 09:36:56 +02:00
Tom Rini
d39221f33f Prepare v2019.10-rc3
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-08-26 20:16:42 -04:00
Tom Rini
12277acda0 Merge branch '2019-08-26-master-imports'
- Assorted minor bugfixes
2019-08-26 17:45:20 -04:00
Heinrich Schuchardt
44de15d686 tools: remove easylogo and include/video_logo.h
include/video_logo.h once was created via the tool easylogo and than used
in cpu/mpc8xx/video.c to display Tux. video_logo.h has been replaced by
include/linux_logo.h and is not needed anymore.

Delete the include and the tool,

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-08-26 11:46:30 -04:00
Adam Ford
9fcea65bca ARM: am3517-evm: Disable CONFIG_USB_EHCI_OMAP in SPL
Found accidentally in omap3_logic, CONFIG_USB_EHCI_OMAP adds some
code size to SPL, so this patch disables it on the am3517-evm to
reduce the code a bit since it's tight for space.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:30 -04:00
Adam Ford
bd8230f498 ARM: da850evm_direct_nor: Enable DM_GPIO
The SPI and NAND variants enable DM_GPIO, so this patch enables
DM_GPIO for the NOR / XIP version of the da850-evm.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:29 -04:00
Adam Ford
6ec08efb25 ARM: da850evm_nand: Enable Ethernet
The NAND configuration has had the ethernet missing, so this patch
enables the on-board ethernet interface.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:29 -04:00
Adam Ford
a074667d52 Kconfig: Varios: Fix more SPL, TPL dependencies
Several options are presenting themselves on a various boards
where the options are clearly not used.  (ie, SPL/TPL options
when SPL or TPL are not defined)

This patch is not attempting to be a complete list of items, but
more like low hanging fruit.  In some instances, I wasn't sure
of DM was required, so I simply made them SPL or TPL.

This patch attempts to reduce some of the menuconfig noise
by defining dependencies so they don't appear when not used.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:29 -04:00
Samuel Egli
055c2a78b7 MAINTAINERS,board/siemens: update maintainer
Signed-off-by: Samuel Egli <samuel.egli@siemens.com>
Acked-by: Roger Meier <r.meier@siemens.com>
Cc: Heiko Schocher <hs@denx.de>
2019-08-26 11:46:29 -04:00
Ricardo Ribalda Delgado
62dd042511 mailmap: Update mail address
Update my email address from gmail to my domain.

Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com>
2019-08-26 11:46:28 -04:00
Suniel Mahesh
f1a71ec616 board: ti: am43xx_evm_usbboot: Enable DM for USB, fix SPL build errors
To address the following warning message:

===================== WARNING ======================
This board does not use CONFIG_DM_USB. Please update
the board to use CONFIG_DM_USB before the v2019.07 release.
Failure to update by the deadline may result in board removal.
See doc/driver-model/MIGRATION.txt for more info.
====================================================

CONFIG_DM_USB is enabled, this resulted in SPL build errors:

drivers/built-in.o: In function 'xhci_dwc3_probe':
u-boot/drivers/usb/host/xhci-dwc3.c:155: undefined reference to 'usb_get_dr_mode'
scripts/Makefile.spl:404: recipe for target 'spl/u-boot-spl' failed
make[1]: *** [spl/u-boot-spl] Error 1
Makefile:1721: recipe for target 'spl/u-boot-spl' failed
make: *** [spl/u-boot-spl] Error 2

Enabling usb common library and usb ethernet drivers in SPL
does the job. Target was compile tested, build was clean.

Signed-off-by: Suniel Mahesh <sunil.m@techveda.org>
2019-08-26 11:46:28 -04:00
Aaron Williams
b21dcebfa6 nvme: Fix PRP Offset Invalid
When large writes take place I saw a Samsung EVO 970+ return a status
value of 0x13, PRP Offset Invalid.  I tracked this down to the
improper handling of PRP entries.  The blocks the PRP entries are
placed in cannot cross a page boundary and thus should be allocated
on page boundaries.  This is how the Linux kernel driver works.

With this patch, the PRP pool is allocated on a page boundary and
other than the very first allocation, the pool size is a multiple of
the page size.  Each page can hold (4096 / 8) - 1 entries since the
last entry must point to the next page in the pool.

Signed-off-by: Aaron Williams <awilliams@marvell.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-26 11:46:28 -04:00
Kunihiko Hayashi
4ebeb4c559 cmd: pci: Adjust display of digits for 64bit address and size
The command "pci bar" and "pci region" display the address and size in
16 characters including "0x", so the command can only display
14 hexadecimal digits if the number of digits in the address and size is
less than 14.

    ID   Base                Size                Width  Type
    ----------------------------------------------------------
     0   0x00000020000000  0x00000000100000  64     MEM   Prefetchable
     1   0xffff000080000000  0x00000000100000  64     MEM   Prefetchable

The 64-bit address and size should be displayed in 18(= 16+2) digits,
so this patch adjusts them.

Cc: Yehuda Yitschak <yehuday@marvell.com>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-26 11:46:28 -04:00
Adam Ford
97605d3ca3 ARM: omap3_logic: Fix SPL boot failure when EHCI enabled
Some of the USB code is still being built into SPL even when the
SPL menu options have it explicitly disabled for SPL. Unit there is
a better solution, This patch undefines CONFIG_USB_EHCI_OMAP when
building SPL which reduces the code and lets the board boot again.

Fixes: 25e4ff45b1 ("ARM: omap3_logic: Enable OMAP EHCI support
for SOM-LV Boards")

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:27 -04:00
Heinrich Schuchardt
e946b5d257 cmd: gpio: remove redundant assignment
The assigned value NULL is overwritten before being used. Remove the
assignment.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-26 11:46:27 -04:00
Sudeep Holla
208bdaf2ae vexpress/aemv8a: drop CONFIG_ARMV8_SWITCH_TO_EL1
To support KVM, we need to drop at EL2 and not EL1 before we boot Linux
kernel. This causes issues on platform with VHE and secondaries booting
at EL2 via TF-A PSCI CPU_ON call.

Cc: Ryan Harkin <ryan.harkin@linaro.org>
Cc: Liviu Dudau <liviu.dudau@foss.arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: David Feng <fenghua@phytium.com.cn>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
2019-08-26 11:46:27 -04:00
Sudeep Holla
af38acbd70 ARM: vexpress_*_defconfig: replace earlyprintk with earlycon
earlyprintk no longer works on arm64 platforms. Replace it with earlycon
which works fine.

Cc: Ryan Harkin <ryan.harkin@linaro.org>
Cc: Liviu Dudau <liviu.dudau@foss.arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-26 11:46:27 -04:00
Martin Vystrčil
d7af2a8630 fat: FAT filesystem premature release of info struct.
File was found on specified location. Info about file was read,
but then immediately destroyed using 'free' call. As a result
file size was set to 0, hence fat process didn't read any data.

Premature 'free' call removed. Resources are freed right before
function return. File is read correctly.

Signed-off-by: Martin Vystrcil <martin.vystrcil@m-linux.cz>
2019-08-26 11:46:21 -04:00
Park, Aiden
bd98e6ae71 dm: scsi: Scan the actual number of ports
The scsi_scan_dev() is looping over the number of uc_plat->max_id.
The number of actual ports a AHCI controller has can be greater than
max_id. Update uc_plat->max_id to make SCSI scan all detected ports.

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-26 11:46:20 -04:00
Adam Ford
5adbc0e5ca ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
When the pinmux configuration was added, it was accidentally placed into
the omap3_pmx_wkup node  when it should have been placed into the
omap3_pmx_core.  This error was accidentally propagated to U-Boot by
me when I blindly copied the device tree from Linux.

This patch moves the i2c2_pins and i2c3_pins to the correct node
which should eliminate i2c bus errors and timeouts due to the fact
the bootloader uses the save device tree that no longer properly
assigns these pins.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:20 -04:00
Vikas Manocha
5f7adb5b1c board_f: reserve noncached space below malloc area
Noncached area at present is being initialized to random space after malloc
area. It works in most the cases as it goes to stack area & stack is not
overwriting it being far from it.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2019-08-26 11:46:20 -04:00
Nuno Gonçalves
27e0f3bcf0 arm: ti: Fix regression in distro boot for mmc
When devnum was changed to a local variable in distro_bootcmd we ran
into a problem on TI platforms (confirmed on Beaglebone) as we had been
using 'setenv devnum' there as well and it needs to match the other
usage.

Fixes: 13dd6665ed ("distro: not taint environment variables if possible")
[trini: Review other platforms, re-word commit message]
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-08-26 11:43:53 -04:00
Tom Rini
7a4b0bc5fe Merge https://gitlab.denx.de/u-boot/custodians/u-boot-riscv
- Support SPL and OpenSBI (FW_DYNAMIC firmware) boot.
- Fix qemu kconfig build warning.
2019-08-26 09:50:46 -04:00
Tom Rini
6f9656d726 Merge branch '2019-08-24-master-imports'
- Migrate SYS_SPI_U_BOOT_OFFS, SYS_NAND_USE_FLASH_BBT and ARCH_CPU_INIT
  to Kconfig
2019-08-26 09:37:37 -04:00
Bin Meng
44016bc598 riscv: qemu: Fix kconfig build warning
When 'make qemu-riscv64_defconfig', there is a build warning:

  board/emulation/qemu-riscv/Kconfig:24:
  warning: config symbol defined without type

Fix it by specifying the config symbol type to 'hex'.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2019-08-26 16:09:02 +08:00
Lukas Auer
8313fcdb4f doc: update QEMU RISC-V documentation
The available defconfigs for RISC-V QEMU have changed. We now have
configurations to compile U-Boot to run in supervisor mode and for
U-Boot SPL. Update the QEMU RISC-V documentation to reflect these
changes.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
e456a81935 riscv: qemu: add SPL configuration
Add two new configurations (qemu-riscv{32,64}_spl_defconfig) with SPL
enabled for RISC-V QEMU. QEMU does not require SPL to run U-Boot. The
configurations are meant to help the development of SPL on RISC-V.

The configurations enable RAM as the only SPL boot device. Images must
be loaded at address 0x80200000. In the default boot flow, U-Boot SPL
starts in machine mode, loads the OpenSBI FW_DYNAMIC firmware and U-Boot
proper from the supplied FIT image, and starts OpenSBI. U-Boot proper is
then started in supervisor mode by OpenSBI.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
109f82bea9 riscv: set default FIT generator script and build target for SPL builds
Now that we have a generic FIT generator script for RISC-V, set it as
the default. To also build the FIT image by default, set the default
build target to "u-boot.itb" if CONFIG_SPL_LOAD_FIT is enabled.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
89fe196c99 riscv: add a generic FIT generator script
Add a generic FIT generator script for RISC-V to generate images
containing U-Boot, OpenSBI FW_DYNAMIC firmware, and optionally one or
more device trees. The location of the OpenSBI firmware binary can be
specified with the OPENSBI environment variable. By default, it is
assumed to be "fw_dynamic.bin", located in the U-Boot top-level. Device
trees are passed as arguments to the generator script. A separate
configuration entry is created for each device tree.

The load addresses of U-Boot and OpenSBI are parsed from the U-Boot
configuration. They can be overwritten with the UBOOT_LOAD_ADDR and
OPENSBI_LOAD_ADDR environment variables.

The script is based on the i.MX (arch/arm/mach-imx/mkimage_fit_atf.sh)
and Allwinner sunxi (board/sunxi/mksunxi_fit_atf.sh) FIT generator
scripts.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
c7e1effb96 riscv: support SPL stack and global data relocation
To support relocation of the stack and global data on RISC-V, the
secondary harts must be notified of the change using IPIs. We can reuse
the hart relocation code for this purpose. It uses global data to store
the new stack pointer and global data pointer for the secondary harts.
This means that we cannot update the global data pointer of the main
hart in spl_relocate_stack_gd(), because the secondary harts have not
yet been relocated at this point. It is updated after the secondary
harts have been notified.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
8c59f2023c riscv: add SPL support
U-Boot SPL on the generic RISC-V CPU supports two boot flows, directly
jumping to the image and via OpenSBI firmware. In the first case, both
U-Boot SPL and proper must be compiled to run in the same privilege
mode. Using OpenSBI firmware, U-Boot SPL must be compiled for machine
mode and U-Boot proper for supervisor mode.

To be able to use SPL, boards have to provide a supported SPL boot
device.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
5e30e45c83 spl: support booting via RISC-V OpenSBI
RISC-V OpenSBI is an open-source implementation of the RISC-V Supervisor
Binary Interface (SBI) specification. It is required by Linux and U-Boot
running in supervisor mode. This patch adds support for booting via the
OpenSBI FW_DYNAMIC firmware. It supports OpenSBI version 0.4 and higher.

In this configuration, U-Boot SPL starts in machine mode. After loading
OpenSBI and U-Boot proper, it will start OpenSBI. All necessary
parameters are generated by U-Boot SPL and are passed to OpenSBI. U-Boot
proper is started in supervisor mode by OpenSBI. Support for OpenSBI is
enabled with CONFIG_SPL_OPENSBI. An additional configuration entry,
CONFIG_SPL_OPENSBI_LOAD_ADDR, is used to specify the load address of the
OpenSBI firmware binary. It is not used directly in U-Boot and instead
is intended to make the value available to scripts such as FIT
configuration generators.

The header file include/opensbi.h is based on header files from the
OpenSBI project. They are recent, as of commit bae54f764570 ("firmware:
Add fw_dynamic firmware").

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
fbfd92bf9b riscv: add run mode configuration for SPL
U-Boot SPL can be run in a different privilege mode from U-Boot proper.
Add new configuration entries for SPL to allow the run mode to be
configured independently of U-Boot proper.

Extend all uses of the CONFIG_RISCV_SMODE and CONFIG_RISCV_MMODE
configuration symbols to also cover the SPL equivalents. Ensure that
files compatible with only one privilege mode are not included in builds
targeting an incompatible privilege mode.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
b83edfbde9 spl: fit: use U-Boot device tree when FIT image has no device tree
As part of the SPL FIT boot flow, the device tree is appended to U-Boot
proper. The device tree is used to record information on the loadables
to make them available to the SPL framework and U-Boot proper. Depending
on the U-Boot device tree provider, the FIT image might not include a
device tree. Information on the loadables is missing in this case.

When booting via firmware bundled with the FIT image, U-Boot SPL loads
the firmware binary and U-Boot proper before starting the firmware. The
firmware, in turn, is responsible for starting U-Boot proper.
Information on the memory location of the U-Boot proper loadable must be
available to the SPL framework so that it can be passed to the firmware
binary. To support this use case when no device tree is found in the FIT
image, fall back to the U-Boot device tree in this situation.

At the same time, update the comment to remove the note that the
destination address must be aligned to ARCH_DMA_MINALIGN. Alignment is
only required as an intermediate step when reading external data. This
is automatically handled by spl_fit_append_fdt(). After reading the
external data, it is copied to the specified address, which does not
have to be aligned to ARCH_DMA_MINALIGN.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00
Lukas Auer
2c7686137b Makefile: support building SPL FIT images without device trees
When building a U-Boot FIT image, the device trees specified by the
board are unconditionally built for inclusion in the FIT image. However,
not all device tree providers, such as CONFIG_OF_PRIOR_STAGE, require a
device tree to be built and bundled with the U-Boot binary. They rely on
other mechanisms to provide the device tree to U-Boot. Compilation on
boards with these device tree providers fails, because they do not
specify a device tree.

Change the makefile rules to conditionally build the device trees if
CONFIG_OF_SEPARATE, CONFIG_OF_EMBED, or CONFIG_OF_HOSTFILE is selected
as device tree provider.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00