Commit Graph

23915 Commits

Author SHA1 Message Date
Tom Rini
6751b70055 arm: fsl-layerscape: Migrate more DP-DDR options to Kconfig
Based on current usage, migrate a number of DP-DDR related options to
Kconfig.

Cc: Priyanka Jain <priyanka.jain@nxp.com>
Cc: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
001a56b008 siemens-am33x-common: Drop CONFIG_DMA_COHERENT*
These values are not used in the code, remove them.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
d9180c3035 m53menlo: Drop CONFIG_DISCOVER_PHY
This is not used in code, drop.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
d43cd486ee Convert CONFIG_FSL_QIXIS et al to Kconfig
This converts the following to Kconfig:
   CONFIG_FSL_QIXIS
   CONFIG_QIXIS_I2C_ACCESS

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
388de0fa8b Convert CONFIG_DIMM_SLOTS_PER_CTLR to Kconfig
This converts the following to Kconfig:
   CONFIG_DIMM_SLOTS_PER_CTLR

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
bef12ea4a3 galileo: Remove CONFIG_DESIGNWARE_ETH reference
This platform has CONFIG_ETH_DESIGNWARE set already, which is the
correct value for the driver in question.  Remove this incorrect line.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
1d2893d191 powerpc: mpc83xx: Migrate DEFAULT_IMMR to Kconfig
As no platforms override this value, set it for all mpc83xx platforms.

Cc: Mario Six <mario.six@gdsys.cc>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
f83f0cb4c7 microblaze: Migrate DCACHE/ICACHE to Kconfig
Move these two options to the arch Kconfig file.

Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2022-04-08 10:46:22 -04:00
Tom Rini
6c3c05f6a4 tegra: Drop CONFIG_CHROMEOS_EXTRA_ENV_SETTINGS
This is not currently set by any boards, so drop.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
53dbf1160d controlcenterdc: Migrate CUSTOMER_BOARD_SUPPORT to Kconfig
This symbol is only possibly useful on some mvebu platforms, so move the
symbol there and select it for the only current user.

Cc: Mario Six <mario.six@gdsys.cc>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-04-08 10:46:22 -04:00
Tom Rini
55b3ba4c2b spi: cadence_qspi: Migrate CONFIG_CQSPI_REF_CLK to Kconfig
This is a little tricky since SoCFPGA has code to determine this as
runtime.  Introduce a guard variable for platforms to select if they
have a static value to use.  Then for ARCH_SOCFPGA, call
cm_get_qspi_controller_clk_hz() and otherwise continue the previous
behavior.

Cc: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 10:46:22 -04:00
Tom Rini
5d14c336b2 Convert CONFIG_SH_SCIF_CLK_FREQ to Kconfig
This converts the following to Kconfig:
   CONFIG_SH_SCIF_CLK_FREQ

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:06:46 -04:00
Tom Rini
f9f3209a34 Convert CONFIG_CONS_SCIF0 et al to Kconfig
This converts the following to Kconfig:
   CONFIG_CONS_SCIF0
   CONFIG_CONS_SCIF1
   CONFIG_CONS_SCIF2
   CONFIG_CONS_SCIF4
   CONFIG_CONS_SCIFA0

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:06:28 -04:00
Tom Rini
8c3e231b8f at91: Remove unused LED code
These LED files (and CONFIG values) are unused today, remove the code in
question.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:05:20 -04:00
Tom Rini
a62acac12a stm32f429-discovery: Migrate CONFIG_*_LED out of CONFIG namespace
These values are only used in one file, reference them more directly.

Cc: Kamil Lulko <kamil.lulko@gmail.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: uboot-stm32@st-md-mailman.stormreply.com
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-04-08 09:05:20 -04:00
Tom Rini
e0f0f1836b corvus: Migrate CONFIG_*_LED out of CONFIG namespace
This code is only used on the corvus platform, so migrate the LED on/off
code to this platform and remove it from the CONFIG namespace.  In
theory, this should likely be moved to the modern GPIO LED driver as a
further cleanup.

Cc: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2022-04-08 09:05:20 -04:00
Tom Rini
8ab7647297 MPC837XERDB: Stop using CONFIG_RAMDISKFILE
We don't really configure this, just set it directly in the environment
section.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:05:20 -04:00
Tom Rini
428eb2e26f s5p_goni, smdkc100: Move some environment settings out of CONFIG
A number of CONFIG options are used on these platforms as part of the
default environment.  Set some of these more directly and in other
cases, just reference them directly.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:05:19 -04:00
Tom Rini
f01928e232 arm: integrator: Migrate platform-specific options and cleanup armcoremodule.h
This converts the following to Kconfig:
   CONFIG_CM_INIT
   CONFIG_CM_REMAP
   CONFIG_CM_SPD_DETECT
   CONFIG_CM_MULTIPLE_SSRAM
   CONFIG_CM_TCRAM

We make the first three of these options be always enabled, as that
matches usage.  We select the last two based on how they were defined in
armcoremodule.h.  This also allows us to remove some unused code in
board/armltd/integrator/lowlevel_init.S

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:05:19 -04:00
Tom Rini
dafcd96d8a Convert CONFIG_CMDLINE_PS_SUPPORT to Kconfig
This converts the following to Kconfig:
   CONFIG_CMDLINE_PS_SUPPORT

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:05:19 -04:00
Tom Rini
bd3ef27886 tegra: Migrate CI_UDC_HAS_HOSTPC to Kconfig
This option is only enabled for CI_UDC and !TEGRA20, so implement it as
such in Kconfig directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
2022-04-08 09:05:19 -04:00
Tom Rini
95b641756c Convert CONFIG_BOARD_SIZE_LIMIT to Kconfig
This converts the following to Kconfig:
   CONFIG_BOARD_SIZE_LIMIT

To do this, introduce CONFIG_HAS_BOARD_SIZE_LIMIT.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08 09:05:19 -04:00
He Yong
eb68ead2d3 env: fat: Allow overriding interface, device and partition
For platform which can boot on different device, this allows
to override interface, device and partition from board code

Signed-off-by: He Yong <hyyoxhk@163.com>
2022-04-07 16:50:53 -04:00
Simon Glass
49e8668181 dm: blk: Expand iteration and add tests
Add some functions which support iteration before probing. Also add tests
for the functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Simon Glass
e86b6f7100 dm: core: Tidy up comments in uclass headers
Improve some of the comments in these files, which don't follow the
correct style.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Simon Glass
bb36b9a7d6 dm: core: Add a required struct declaration
This file uses struct driver, so declare it at the top in case the
header-inclusion order is not as expected.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Simon Glass
09bc3d2eac stdint: Add a definition of UINT8_MAX
This is normally defined in stdint.h but is not used in U-Boot. When
libraries (such as Chromium OS vboot) are built against U-Boot they may
expect this value to be available. Add it to avoid build errors in this
case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Simon Glass
a50b561333 cros_ec: Complete the comment for cros_ec_read_batt_charge()
Add the missing 'Return' information.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Simon Glass
9dc29742c5 cbfs: Add some more definititions
Add definitions for a payload or 'self', which is like an unpacked ELF
file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Simon Glass
64aefc4800 errno: Avoid including strings in SPL
At present the header file defines this function in SPL but the file may
not actually be built. This causes a build error if the option is enabled.

Fix the condition in the header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Heinrich Schuchardt
d23f290840 dm: fix function documentation in include/dm/ofnode.h
We use Sphinx style comments to describe functions.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-04-06 09:21:49 -04:00
Lukasz Majewski
1610b68ea3 power: Rename CONFIG_POWER_TPS65217 with CONFIG_PMIC_TPS65217
Up till now the CONFIG_POWER_TPS65217 has been defined in several header
files for am335x SoC.

This patch renames it to CONFIG_PMIC_TPS65217, which better reflects the
role of this IC circuit.

Moreover, new CONFIG_PMIC_TPS65217 has been introduced in Kconfig
to be used with boards, which both support DM_PMIC and DM_I2C.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[trini: Migrate all other platforms as well]
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-05 15:51:46 -04:00
Tom Rini
59bffec43a Merge branch '2022-04-04-platform-updates'
- Updates for exynos78x0 and TI K3 platforms
2022-04-05 13:45:22 -04:00
Tom Rini
037ef53cf0 Xilinx changes for v2022.07-rc1 v2
xilinx:
 - Allow booting bigger kernels till 100MB
 
 zynqmp:
 - DT updates (reset IDs)
 - Remove unneeded low level uart initialization from psu_init*
 - Enable PWM features
 - Add support for 1EG device
 
 serial_zynq:
 - Change fifo behavior in DEBUG mode
 
 zynq_sdhci:
 - Fix BASECLK setting calculation
 
 clk_zynqmp:
 - Add support for showing video clock
 
 gpio:
 - Update slg driver to handle DT flags
 
 net:
 - Update ethernet_id code to support also DM_ETH_PHY
 - Add support for DM_ETH_PHY in gem driver
 - Enable dynamic mode for SGMII config in gem driver
 
 pwm:
 - Add driver for cadence PWM
 
 versal:
 - Add support for reserved memory
 
 firmware:
 - Handle PD enabling for SPL
 - Add support for IOUSLCR SGMII configurations
 
 include:
 - Sync phy.h with Linux
 - Update xilinx power domain dt binding headers
 -----BEGIN PGP SIGNATURE-----
 
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 IXJ2AKCQcoFK7wanCCvZfuEJCSwO5E4eCACginE2CFVXKcY1P8ta4ESusjY2TH0=
 =HOoS
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2022.07-rc1-v2' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2022.07-rc1 v2

xilinx:
- Allow booting bigger kernels till 100MB

zynqmp:
- DT updates (reset IDs)
- Remove unneeded low level uart initialization from psu_init*
- Enable PWM features
- Add support for 1EG device

serial_zynq:
- Change fifo behavior in DEBUG mode

zynq_sdhci:
- Fix BASECLK setting calculation

clk_zynqmp:
- Add support for showing video clock

gpio:
- Update slg driver to handle DT flags

net:
- Update ethernet_id code to support also DM_ETH_PHY
- Add support for DM_ETH_PHY in gem driver
- Enable dynamic mode for SGMII config in gem driver

pwm:
- Add driver for cadence PWM

versal:
- Add support for reserved memory

firmware:
- Handle PD enabling for SPL
- Add support for IOUSLCR SGMII configurations

include:
- Sync phy.h with Linux
- Update xilinx power domain dt binding headers
2022-04-05 11:27:39 -04:00
T Karthik Reddy
7011efce23 firmware: firmware-zynqmp: Add zynqmp_pm_set_gem_config api
Add zynqmp_pm_set_gem_config() api to configure GEM secure registers.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/f69e32355c6a6be7d2780663353c52757530207d.1648631275.git.michal.simek@xilinx.com
2022-04-05 15:13:13 +02:00
Michal Simek
d2f059c3dc dt-bindings: xilinx: Add missing ids for PD
There are some new power domain IDs which are used in Linux kernel that's
why add them here too.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/e6092e1d3766c0ac11bf620820739c93ab677a85.1648626981.git.michal.simek@xilinx.com
2022-04-05 15:12:12 +02:00
T Karthik Reddy
9b529a972d net: phy: Fix rgmii-id phy reset timeout issue
While creating a phy device using phy_device_create(), we need to
provide a valid phyaddr instead of 0 causing phy address being
registered as 0 with mdio bus and shows mdio phy list as below

ZynqMP>  mdio list
eth0:
0 - TI DP83867 <--> ethernet@ff0b0000
eth1:
0 - TI DP83867 <--> ethernet@ff0c0000

Also PHY soft reset is being requested on 0 instead of valid
address causing "PHY reset timed out" error.

So add phyaddr argument to phy_connect_phy_id() and to its prototype
to create phy device with valid phyaddress.

Fixes: a744a284e3 ("net: phy: Add support for ethernet-phy-id with gpio reset")
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Link: https://lore.kernel.org/r/fe35fddb9faa5af577ffdfabaec6879c935a30f8.1648562755.git.michal.simek@xilinx.com
2022-04-05 15:10:54 +02:00
Tom Rini
4de720e98d Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sunxi
A big part is the DM pinctrl driver, which allows us to get rid of quite
some custom pinmux code and make the whole port much more robust. Many
thanks to Samuel for that nice contribution! There are some more or less
cosmetic warnings about missing clocks right now, I will send the trivial
fixes for that later.
Another big chunk is the mkimage upgrade, which adds RISC-V and TOC0
(secure images) support. Both features are unused at the moment, but I
have an always-secure board that will use that once the DT lands in the
kernel.
On top of those big things we have some smaller fixes, improving the
I2C DM support, fixing some H6/H616 early clock setup and improving the
eMMC boot partition support.

The gitlab CI completed successfully, including the build test for all
161 sunxi boards. I also boot tested on a A64, A20, H3, H6, and F1C100
board. USB, SD card, eMMC, and Ethernet all work there (where applicable).
2022-04-05 08:33:32 -04:00
Michal Simek
cf5ed341e4 xilinx: Increase max size of image from 60 to 100MB
Recently big Linux kernels can have more then 60MB that's why increase this
limit to also cover these large kernels.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/f52f7c8ea419d69b248ba1460a96d1635194e128.1648551279.git.michal.simek@xilinx.com
2022-04-05 13:26:10 +02:00
Dave Gerlach
f861ce90ca ram: k3-ddrss: Introduce ECC Functionality for full memory space
Introduce ECC Functionality for full memory space as implemented in the
DDRSS. The following is done to accomplish this:

 * Introduce a memory region "ss" to allow dt to provide DDRSS region,
   which is not the same as "ctl" which is the controller region.

 * Introduce a "ti,ecc-enable" flag which allows a memorycontroller
   instance to enable ecc.

 * Introduce functionality to properly program the DDRSS registers to
   enable ECC for the full DDR memory space if enabled with above flag.

 * Expose a k3_ddrss_ddr_fdt_fixup call to allow fixup of fdt blob to
   account from DDR memory that must be reserved for ECC operation.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2022-04-04 19:02:04 -04:00
Dzmitry Sankouski
d5c4ec4aa3 board: axy17lte: get board usable - add bootcmd and docs
U-boot is intended to replace linux kernel in android boot image(ABL), and
it's FIT payload to replace initramfs file. The boot process is similar to
boot image with linux:
- android bootloader (ABL) unpacks android boot image
- ABL sets `linux,initrd-start property` in chosen node in unpacked FDT
- ABL sets x0 register to FDT address, and passes control to u-boot
- u-boot reads x0 register, and stores it in `prevbl_fdt_addr` env variable
- u-boot reads `linux,initrd-start` property,
and stores it in `prevbl_initrd_start_addr`

In this way, u-boot bootcmd relies on `prevbl_initrd_start_addr` env
variable, and boils down to `bootm $prevbl_initrd_start_addr`.
If more control on boot process is desired, pack a boot script in
FIT image, and put it to default configuration

What done:
- Rearrange defconfig option order
- Add CONFIG_SAVE_PREV_BL_* options
- Doc updates:
  - remove wrong SBOOT memory corruption note, because
  memory is changed during u-boot bringup process,
  not by SBOOT
  - put payload on ramdisk place in abl boot image
  creation step

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
2022-04-04 19:02:03 -04:00
Andre Przywara
5907357322 spl: mmc: extend spl_mmc_boot_mode() to take mmc argument
Platforms can overwrite the weak definition of spl_mmc_boot_mode() to
determine where to load U-Boot proper from.
For most of them this is a trivial decision based on Kconfig variables,
but it might be desirable the probe the actual device to answer this
question.

Pass the pointer to the mmc struct to that function, so implementations
can make use of that.

Compile-tested for all users changed.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Ley Foon Tan <ley.foon.tan@inte.com> (for SoCFPGA)
Acked-by: Lokesh Vutla <lokeshvutla@ti.com> (for OMAP and K3)
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-04 23:24:17 +01:00
Samuel Holland
e9e87ec47c tools: mkimage: Add Allwinner TOC0 support
Most Allwinner sunxi SoCs have separate boot ROMs in non-secure and
secure mode. The "non-secure" or "normal" boot ROM (NBROM) uses the
existing sunxi_egon image type. The secure boot ROM (SBROM) uses a
completely different image type, known as TOC0.

A TOC0 image is composed of a header and two or more items. One item
is the firmware binary. The others form a chain linking the firmware
signature to the root-of-trust public key (ROTPK), which has its hash
burned in the SoC's eFuses. Signatures are made using RSA-2048 + SHA256.

The pseudo-ASN.1 structure is manually assembled; this is done to work
around bugs/quirks in the boot ROM, which vary between SoCs. This TOC0
implementation has been verified to work with the A50, A64, H5, H6,
and H616 SBROMs, and it may work with other SoCs.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-04 23:24:17 +01:00
Dzmitry Sankouski
f8a1b33889 board: starqltechn: get board usable - add bootcmd and docs
U-boot is intended to replace linux kernel in android boot image(ABL), and
it's FIT payload to replace initramfs file. The boot process is similar to
boot image with linux:
- android bootloader (ABL) unpacks android boot image
- ABL sets `linux,initrd-start property` in chosen node in unpacked FDT
- ABL sets x0 register to FDT address, and passes control to u-boot
- u-boot reads x0 register, and stores it in `prevbl_fdt_addr` env variable
- u-boot reads `linux,initrd-start` property,
and stores it in `prevbl_initrd_start_addr`

In this way, u-boot bootcmd relies on `prevbl_initrd_start_addr` env
variable, and boils down to `bootm $prevbl_initrd_start_addr`.
If more control on boot process is desired, pack a boot script in
FIT image, and put it to default configuration

What done:
- strip unneeded config options
- add FIT image support
- add framebuffer node, u-boot logo and video console
- increase LMB_MAX_REGIONS, to store all linux dtb reserved memory regions
- add linux kernel image header

Uart driver causes hang, when u-boot is used in android boot image instead
of linux. Temporary disable console driver, until investigated and fixed.

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
2022-04-04 15:06:11 -04:00
Dzmitry Sankouski
12a3e1ada0 arm: init: save previous bootloader data
When u-boot is used as a chain-loaded bootloader (replacing OS kernel),
previous bootloader leaves data in RAM, that can be reused.

For example, on recent arm linux system, when chainloading u-boot,
there are initramfs and fdt in RAM prepared for OS booting. Initramfs
may be modified to store u-boot's payload, thus providing the ability to
use chainloaded u-boot to boot OS without any storage support.

Two config options added:
- SAVE_PREV_BL_INITRAMFS_START_ADDR
  saves initramfs start address to 'prevbl_initrd_start_addr' environment
  variable
- SAVE_PREV_BL_FDT_ADDR
  saves fdt address to 'prevbl_fdt_addr' environment variable

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2022-04-04 14:53:26 -04:00
Alexander Graf
5c9b420ada qemu-arm: Enable NVMe for distro boot
We already support the NVMe commands and PCIe backend in the QEMU target,
so let's make it easy for anyone to consume them and enable NVMe distro
boot along the way!

With this patch, I can put an NVMe backed disk image into my QEMU VM and
have it automatically load a UEFI target blob.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2022-04-04 14:53:26 -04:00
Tom Rini
01f1ab67f3 Merge branch 'next'
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-04 10:48:44 -04:00
Sean Anderson
7a76347189 serial: dm: Add support for puts
Some serial drivers can be vastly more efficient when printing multiple
characters at once. Non-DM serial has had a puts option for these sorts
of drivers; implement it for DM serial as well.

Because we have to add carriage returns, we can't just pass the whole
string directly to the serial driver. Instead, we print up to the
newline, then print a carriage return, and then continue on. This is
less efficient, but it is better than printing each character
individually. It also avoids having to allocate memory just to add a few
characters.

Drivers may perform short writes (such as filling a FIFO) and return the
number of characters written in len. We loop over them in the same way
that _serial_putc loops over putc.

This results in around sizeof(void *) growth for all boards with
DM_SERIAL. The full implementation takes around 140 bytes.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-01 16:56:54 -04:00
Sean Anderson
bbe310cdaf arm64: Catch non-emulated semihosting calls
If a debugger is not attached to U-Boot, semihosting calls will raise a
synchronous abort exception. Try to catch this and disable semihosting
so we can e.g. use another uart if one is available. In the immediate
case, we return an error, since it is not always possible to check for
semihosting beforehand (debug uart, user-initiated load command, etc.)

We handle all possible semihosting instructions, which is probably
overkill. However, we do need to keep track of what instruction set
we're using so that we don't suppress an actual error.

A future enhancement could try to determine semihosting capability by
inspecting the processor state.  There's an example of this at [1] for
RISC-V. The equivalent for ARM would inspect the monitor modei
enable/select bits of the DSCR. However, as the article notes, an
exception handler is still helpful in order to catch disconnected
debuggers.

[1] https://tomverbeure.github.io/2021/12/30/Semihosting-on-RISCV.html#avoiding-hangs-when-a-debugger-is-not-connected

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01 16:56:53 -04:00
Sean Anderson
385d69d76b arm: smh: Add option to detect semihosting
These functions are intended to support detecting semihosting and
falling back gracefully to alternative implementations. The test starts
by making semihosting call. SYS_ERRNO is chosen because it should not
mutate any state. If this semihosting call results in an exception
(rather than being caught by the debugger), then the exception handler
should call disable_semihosting() and resume execution after the call.

Ideally, this would just be part of semihosting by default, and not a
separate config. However, to reduce space ARM SPL doesn't include
exception vectors by default. This means we can't detect if a
semihosting call failed unless we enable them. To avoid forcing them to
be enabled, we use a separate config option. It might also be possible
to try and detect whether a debugger has enabled (by reading HDE from
DSCR), but I wasn't able to figure out a way to do this from all ELs.

This patch just introduces the generic code to handle detection. The
next patch will implement it for arm64 (but not arm32).

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01 16:56:53 -04:00