Tom Rini [Tue, 5 Apr 2022 15:27:39 +0000 (11:27 -0400)]
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
T Karthik Reddy [Wed, 30 Mar 2022 09:07:56 +0000 (11:07 +0200)]
gpio: slg7xl45106: Update gpio desc flags from DT
In current slg7xl45106 gpio driver xlate() function we are not updating
gpio flags from DT. Read the given flag from DT and update the gpio desc
flags variable with required gpio direction state.
T Karthik Reddy [Wed, 30 Mar 2022 09:07:55 +0000 (11:07 +0200)]
net: zynq_gem: Move ethernet info print statement
As we are not reading the PHY address in case of CONFIG_ETH_PHY in plat
function, phy address always prints as -1. So move the ethernet info
print statement to probe function, to display proper phy address.
T Karthik Reddy [Wed, 30 Mar 2022 09:07:54 +0000 (11:07 +0200)]
net: phy: Avoid phy gpio reset sequence if DM_ETH_PHY is enabled
If DM_ETH_PHY config is enabled PHY gpio reset is taken care by the
eth-phy-uclass driver, so use the PHY gpio reset functionality from
ethernet_id file when this config is disabled to reset the PHY.
Use debug() print instead of dev_err() to avoid warning incase if phy-id
compatible string is not present.
Michal Simek [Wed, 30 Mar 2022 09:07:53 +0000 (11:07 +0200)]
net: zynq_gem: Use shared MDIO bus support for zynqmp
CONFIG_ETH_PHY enables support to utilize generic ethernet phy
framework. Though if ethernet PHY node is in other ethernet node, it
will use shared MDIO to access the PHY of other ethernet.
T Karthik Reddy [Tue, 29 Mar 2022 14:05:57 +0000 (16:05 +0200)]
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.
Tom Rini [Tue, 5 Apr 2022 12:33:32 +0000 (08:33 -0400)]
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).
Andre Przywara [Mon, 12 Jul 2021 10:06:51 +0000 (11:06 +0100)]
sunxi: defconfig: enable eMMC boot partition support
Now that the SPL can safely detect whether it was loaded from an eMMC
boot partition or the normal user data partition, let's enable this
feature on some boards that feature eMMC storage.
That covers the boards where I could test this on, and allows the same
build to be written to an SD card, eMMC user partition, eMMC boot
partition, or into SPI NOR flash.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
When the Allwinner BROM loads the SPL from an eMMC boot partition, it
sets the boot source byte to the same value as when booting from the
user data partition. This prevents us from determining the boot source
to load U-Boot proper from the proper partition for sure.
The generic SPL MMC code already looks at the enabled boot partition
number, to load U-Boot proper from the same partition, but this fails
if there is nothing bootable in this partition, as the BROM then
silently falls back to the user data partition, which the SPL misses.
To learn about the actual boot source anyway, we repeat the algorithm
the BROM used to select the boot partition in the first place:
- Test EXT_CSD[179] to check if an eMMC boot partition is enabled.
- Test EXT_CSD[177] to check for valid MMC interface settings.
- Check if BOOT_ACK is enabled.
- Check the beginning of the first sector for a valid eGON signature.
- Load the whole SPL.
- Recalculate the checksum to verify the SPL is valid.
If one of those steps fails, we bail out and continue loading from the
user data partition. Otherwise we load from the selected boot partition.
Since the boot source is needed twice in the boot process, we cache the
result of this test to avoid doing this costly test multiple times.
This allows the very same image file to be put onto an SD card, into the
eMMC user data partition or into the eMMC boot partition, and safely
loads the whole of U-Boot from there.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Dave Gerlach [Thu, 17 Mar 2022 17:03:44 +0000 (12:03 -0500)]
board: ti: am64x: Account for DDR size fixups if ECC is enabled
Call into k3-ddrss driver to fixup device tree and resize the available
amount of DDR if ECC is enabled.
A second fixup is required from A53 SPL to take the fixup as done from
R5 SPL and apply it to DT passed to A53 U-boot, which in turn passes
this to the OS.
Dave Gerlach [Thu, 17 Mar 2022 17:03:42 +0000 (12:03 -0500)]
ram: k3-ddrss: Rename ddrss_ss_regs to ddrss_ctl_regs
The current address being read from dt actually represents the ddrss_ctl
memory region, while ddrss_ss region is something else. Introduce
ddrss_ctl_regs and use it to free up ddrss_ss_regs for its proper
purpose later so that we can avoid confusion.
Dave Gerlach [Thu, 17 Mar 2022 17:03:40 +0000 (12:03 -0500)]
board: ti: am64x: Use fdt functions for ram and bank init
Use the appropriate fdtdec_setup_mem_size_base and
fdtdec_setup_bank_size calls in dram_init and dram_bank_init to pull
these values from DT, where they are already available, instead of
hardcoding them.
configs: am64x_evm_a53_defconfig: Switch to per-cpu timer as tick provider
On arm64 systems, recommendation is to use per-cpu timer for time
keeping. Currently AM64 ends up using DM timer as tick timer as driver
is enabled in the config. Drop OMAP DM Timer related configs, this will
switch to using armv8 per-cpu timer as tick timer for A53 SPL/U-Boot.
Hari Nagalla [Wed, 9 Mar 2022 20:42:30 +0000 (14:42 -0600)]
arch: arm: mach-k3: am642_init: Probe ESM nodes
On AM64x devices, it is possible to route Main ESM0 error events to MCU
ESM. MCU ESM high error output can trigger the reset logic to reset the
device. So, for these devices we expect two ESM device nodes in the
device tree, one for Main ESM and the another MCU ESM in the device tree.
When these ESM device nodes are properly configired it is possible to
route the Main RTI0 WWDT output to the MCU ESM high output through Main
ESM and trigger a device reset when
CTRLMMR_MCU_RST_CTRL:MCU_ESM_ERROR_RESET_EN_Z is set to '0'.
On K3 AM64x devices, the R5 SPL u-boot handles the ESM device node
configurations.
Signed-off-by: Hari Nagalla <hnagalla@ti.com> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Hari Nagalla [Wed, 9 Mar 2022 20:42:28 +0000 (14:42 -0600)]
misc: k3_esm: Add functionality to set and route error events within K3SoC
Add functionality to enable, set priority to the input events and to
route to MCU ESM. On AM64x/AM62x devices, it is possible to route Main
ESM0 error events to MCU ESM. When these error events are routed to MCU
ESM high output, it can trigger the reset logic to reset the device,
when CTRLMMR_MCU_RST_CTRL:MCU_ESM_ERROR_RESET_EN_Z is set to '0'.
K3 based J7 devices (ex: J721e) also have ESM modules, and the changes
to the driver does not impact those devices.
Signed-off-by: Hari Nagalla <hnagalla@ti.com> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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
Andre Przywara [Mon, 12 Jul 2021 10:06:49 +0000 (11:06 +0100)]
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>
Jernej Skrabec [Sun, 30 Jan 2022 14:27:13 +0000 (15:27 +0100)]
sunxi: prcm: Add a few registers
H6 and H616 SPL code has a few writes to unknown PRCM registers. Now
that we know what they are, let's replace magic offsets with proper
register names.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Fri, 18 Mar 2022 04:52:36 +0000 (23:52 -0500)]
i2c: sun8i_rsb: Add support for DM clocks and resets
Currently, clock/reset setup for this device is handled by a
platform-specific function and is intermixed with non-DM pinctrl
setup. Use the devicetree to get clocks/resets, which disentagles
it from the pinctrl setup in preparation for moving to DM_PINCTRL.
This also has the added benefit of picking the right clock/reset
bits for H6 and new SoCs that have a rearranged PRCM MMIO space.
Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Fri, 18 Mar 2022 04:52:35 +0000 (23:52 -0500)]
i2c: sun8i_rsb: Initialize chips in .child_pre_probe
Chips attached to the RSB bus require an initialization command before
they can be used. (Specifically, this command programs the chip's
runtime address.) The driver does this in its .probe_chip hook, under
the assumption that .probe_chip is called during child probe. This is
not the case; .probe_chip is only called by dm_i2c_probe, which is
intended for use by board-level code, not for chips with OF nodes.
Since this initialization command must be run before a child chip can be
used, do it before probing each child.
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>
Samuel Holland [Fri, 18 Mar 2022 04:52:34 +0000 (23:52 -0500)]
i2c: sun6i_p2wi: Add support for DM clocks and resets
Currently, clock/reset setup for this device is handled by a
platform-specific function and is intermixed with non-DM pinctrl
setup. Use the devicetree to get clocks/resets, which disentagles
it from the pinctrl setup in preparation for moving to DM_PINCTRL.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Fri, 18 Mar 2022 04:52:33 +0000 (23:52 -0500)]
i2c: sun6i_p2wi: Initialize chips in .child_pre_probe
Chips attached to the P2WI bus require an initialization command before
they can be used. (Specifically, this switches the chip from I2C mode
to P2WI mode.) The driver does this in its .probe_chip hook, under the
assumption that .probe_chip is called during child probe. This is not
the case; .probe_chip is only called by dm_i2c_probe, which is intended
for use by board-level code, not for chips with OF nodes.
Since this initialization command must be run before a child chip can be
used, do it before probing each child.
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>
Samuel Holland [Fri, 18 Mar 2022 05:00:45 +0000 (00:00 -0500)]
sunxi: Support building a SPL as a TOC0 image
Now that mkimage can generate TOC0 images, and the SPL can interpret
them, hook up the build infrastructure so the user can choose which
image type to build. Since the absolute load address is stored in the
TOC0 header, that information must be passed to mkimage.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Fri, 18 Mar 2022 05:00:44 +0000 (00:00 -0500)]
sunxi: Support SPL in both eGON and TOC0 images
SPL uses the image header to detect the boot device and to find the
offset of the next U-Boot stage. Since this information is stored
differently in the eGON and TOC0 image headers, add code to find the
correct value based on the image type currently in use.
Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Fri, 18 Mar 2022 05:00:43 +0000 (00:00 -0500)]
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>
Icenowy Zheng [Fri, 15 Oct 2021 01:53:07 +0000 (20:53 -0500)]
sunxi: specify architecture when generating SPL boot image
As mkimage -T sunxi_egon now gains support for -A parameter, specify the
architecture when generating SPL boot image for sunxi.
Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Icenowy Zheng [Fri, 15 Oct 2021 01:53:06 +0000 (20:53 -0500)]
mkimage: sunxi_egon: add support for riscv
There's now a sun20i family in sunxi, which uses RISC-V CPU.
Add support for making eGON.BT0 image for RISC-V.
Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Icenowy Zheng [Fri, 15 Oct 2021 01:53:05 +0000 (20:53 -0500)]
mkimage: sunxi_egon: refactor for multi-architecture support
Refactor some functions in mkimage sunxi_egon type, in order to prepare
for adding support for more CPU architectures (e.g. RISC-V). In
addition, compatibility for operation w/o specified architecture is
kept, in this case the architecture is assumed as ARM.
Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Icenowy Zheng [Fri, 15 Oct 2021 01:53:04 +0000 (20:53 -0500)]
mkimage: add a flag to describe whether -A is specified
The sunxi_egon type used to take no -A argument (because we assume sunxi
targets are all ARM). However, as Allwinner D1 appears as the first
RISC-V sunxi target, we need to support -A; in addition, as external
projects rely on U-Boot mkimage to generate sunxi eGON.BT0 header, we
need to keep compatibility with command line without -A.
As the default value of arch in mkimage is not proper (IH_ARCH_PPC
instead of IH_ARCH_INVALID), to keep more compatibility, add an Aflag
field to image parameters to describe whether an architecture is
explicitly specified.
Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 16:50:28 +0000 (11:50 -0500)]
spi: sun4i_spi: Remove non-DM pin setup
This is now handled automatically by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 22:05:35 +0000 (17:05 -0500)]
pinctrl: sunxi: Add SPI0 pinmuxes
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 16:50:51 +0000 (11:50 -0500)]
pwm: sunxi: Remove non-DM pin setup
This is now handled automatically by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 20:52:52 +0000 (15:52 -0500)]
pinctrl: sunxi: Add the A64 PWM pinmux
This is the only possible mux setting for the A64's PWM peripheral.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 16:49:03 +0000 (11:49 -0500)]
sunxi: Remove non-DM MMC pin setup
This is now handled automatically by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 21:51:03 +0000 (16:51 -0500)]
pinctrl: sunxi: Add MMC pinmuxes
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Thu, 21 Oct 2021 04:01:29 +0000 (23:01 -0500)]
i2c: sun8i_rsb: Only do non-DM pin setup for non-DM I2C
When the DM_I2C driver is loaded, the pin setup is done automatically
from the device tree by the pinctrl driver.
Clean up the code in the process: remove #ifdefs and recognize that the
pin configuration is the same for all sun8i/sun50i SoCs, not just those
which select CONFIG_MACH_SUN8I.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Thu, 21 Oct 2021 04:01:29 +0000 (23:01 -0500)]
i2c: sun6i_p2wi: Only do non-DM pin setup for non-DM I2C
When the DM_I2C driver is loaded, the pin setup is done automatically
from the device tree by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Thu, 21 Oct 2021 03:55:06 +0000 (22:55 -0500)]
sunxi: Remove options and setup code for I2C2-I2C4
These options are not currently enabled anywhere. Any new users should
use DM clocks and pinctrl.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 20:17:32 +0000 (15:17 -0500)]
pinctrl: sunxi: Add I2C pinmuxes
Where multiple options were available, the one matching board.c and the
device trees was chosen.
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
[Andre: fixup H5 I2C1 pinmux] Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 16:49:40 +0000 (11:49 -0500)]
net: sun8i_emac: Remove non-DM pin setup
This is now handled automatically by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 18:34:29 +0000 (13:34 -0500)]
pinctrl: sunxi: Add sun8i EMAC pinmuxes
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 18:16:44 +0000 (13:16 -0500)]
sunxi: Remove non-DM GMAC pin setup
This is now handled automatically by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 18:13:52 +0000 (13:13 -0500)]
pinctrl: sunxi: Add sunxi GMAC pinmuxes
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 18:22:41 +0000 (13:22 -0500)]
net: sunxi_emac: Remove non-DM pin setup
This is now handled automatically by the pinctrl driver.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 18:21:36 +0000 (13:21 -0500)]
pinctrl: sunxi: Add sun4i EMAC pinmuxes
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Sat, 28 Aug 2021 18:00:45 +0000 (13:00 -0500)]
pinctrl: sunxi: Add UART pinmuxes
This includes UART0 and R_UART (s_uart) on all supported platforms, plus
the additional UART configurations from arch/arm/mach-sunxi/board.c.
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Tue, 17 Aug 2021 05:52:00 +0000 (00:52 -0500)]
sunxi: pinctrl: Implement get_pin_muxing function
The pinmux command uses this function to display pinmux status.
Since the driver cannot map pin numbers to a list of supported
functions, only functions which are common across all pins can be
reported by name.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Tue, 17 Aug 2021 04:56:47 +0000 (23:56 -0500)]
sunxi: pinctrl: Implement pin muxing functions
Implement the operations to get pin and function names, and to set the
mux for a pin. The pin count and pin names are calculated as if each
bank has the maximum number of pins. Function names are simply the index
into a list of { function name, mux value } pairs.
We assume all pins associated with a function use the same mux value for
that function. This is generally true within a group of pins on a single
port, but generally false when some peripheral can be muxed to multiple
ports. For example, A64 UART3 uses mux 3 on port D, and mux 2 on port H.
But all of the port D pins use the same mux value, and so do all of the
port H pins. This applies even when the pins for some function are not
contiguous, and when the lower-numbered mux values are unused. A good
example of both of these cases is SPI0 on most SoCs.
This strategy saves a lot of space (which is especially important for
SPL), but where the mux value for a certain function differs across
ports, it forces us to choose a single port for that function at build
time. Since almost all boards use the default (i.e. reference design)
pin muxes[1], this is unlikely to be a problem.
[1]: See commit 9b4e3675b517 ("sunxi: Simplify MMC pinmux selection")
Signed-off-by: Samuel Holland <samuel@sholland.org>
[Andre: add comment summarising the commit message] Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Samuel Holland [Fri, 13 Aug 2021 01:09:43 +0000 (20:09 -0500)]
sunxi: pinctrl: Create the driver skeleton
Create a do-nothing driver for each sunxi pin controller variant.
Since only one driver can automatically bind to a DT node, since the
GPIO driver already requires a manual binding process, and since the
pinctrl driver needs access to some of the same information, refactor
the GPIO driver to be bound by the pinctrl driver. This commit should
cause no functional change.
Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
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>
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>
Alexander Graf [Sun, 27 Feb 2022 12:20:32 +0000 (13:20 +0100)]
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>
Tom Rini [Mon, 4 Apr 2022 12:26:55 +0000 (08:26 -0400)]
Merge tag 'u-boot-at91-2022.07-a' of https://source.denx.de/u-boot/custodians/u-boot-at91 into next
First set of u-boot-at91 features for the 2022.07 cycle:
This feature set includes the new driver for the Atmel TCB timer,
alignment in DT for sama7g5 and sama7g5ek board, one Kconfig conversion
for external reset, and the usage of Galois tables from ROM for sama5d2
device.
If include/generated/env.in does not exist, which is a typical case for
clean build, quiet_cmd_gen_envp command tries to delete this file
unconditionally.
This produces following warning during the build:
ENVP include/generated/env.in
rm: cannot remove 'include/generated/env.in': No such file or directory
Add '-f' option to the `rm` command to not complain if file does not
exist.
Fixes: 673de390c485 ("env: Avoid using a leftover text-environment file") Reviewed-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Tom Rini [Sat, 2 Apr 2022 19:28:43 +0000 (15:28 -0400)]
Merge branch '2022-04-01-arm-semihosting-cleanups-and-new-features' into next
This brings in two related series. The first from Andre:
This series is the continuation of last year's effort to support the new
Armv8-R64 application profile. This led to a significant rework of the
existing fastmodel (FVP) support, to both upgrade it to newest U-Boot
standards (OF_CONTROL and distro_boot support), but also to generalise
the code, so that plugging in the v8-R64 support in the last patch gets
much easier. This is because apart from the twisted memory map between
the two profiles there is actually little difference, when it comes to
U-Boot relevant parts of the hardware.
I kept the legacy semihosting support (which picks up magic files from
the current directory), but if that fails, we go and try virtio-blk
(.iso installer images work), then virtio-net.
Please have a look, and give it a try, if possible. Both the v8-R and
v8-A FVP models are available for free on the Arm website[1].
Patch 01/11 fixes a regression introduced in December, it should be
applied now. The rest of the patches are for the next merge window.
And the second from Sean (where we exclude 27, 28 and 29 for now):
This cleans up the semihosting code and adds the following new features:
- hostfs support (like sandbox)
- support for being used as a SPL boot device
- serial device support
- falling back to normal drivers if semihosting is disabled
The main device affected by these changes is vexpress64, so I'd
appreciate
if Andre (or anyone else) could try booting.
These changes are motivated by bringup for ls1046a. When forcing JTAG
boot, this device disables most communication peripherals, including
serial and ethernet devices. This appears to be fixed in later
generation devices, but we are stuck with it for now. Semihosting
provides an easy way to run a few console commands.
The patches in this series are organized as follows:
0-4: rST conversions and other documentation updates
5-9: Semihosting cleanups
10-14: Filesystem support (including SPL boot device)
15-16: Serial support
16: Documentation update
17: JTAG boot support for LS1046A
19-25: Semihosting fallback
26-29: DM puts support
The last two groups of patches are "bonus;" the first 17 patches stand
on their own. The last two groups could be broken out as separate
series, but I have kept them in this one to help with my sanity (and not
have to deal with too many outstanding series).
Patch 14 depends on [1] to apply cleanly. Patch 17 depends on [2] for
correctness. This series should be applied to u-boot/next (in
particular, the EROFS series must have been applied).
Sean Anderson [Tue, 22 Mar 2022 20:59:34 +0000 (16:59 -0400)]
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>
Sean Anderson [Tue, 22 Mar 2022 20:59:33 +0000 (16:59 -0400)]
arm64: ls1046a: Support semihosting fallback
Use the semihosting_enabled function to determine whether or not to
enable semihosting devices. This allows for graceful fallback in the
event a debugger is not attached.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:32 +0000 (16:59 -0400)]
serial: smh: Initialize serial only if semihosting is enabled
If semihosting is disabled, then the user has no debugger attached, and
will not see any messages. Don't create a serial device in this
instance, to (hopefully) fall back on another working serial device.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:31 +0000 (16:59 -0400)]
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.
Sean Anderson [Tue, 22 Mar 2022 20:59:30 +0000 (16:59 -0400)]
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>
Sean Anderson [Tue, 22 Mar 2022 21:18:37 +0000 (17:18 -0400)]
arm64: Import some ESR and SPSR defines from Linux
This imports some defines for esr and spsr from Linux v5.16. I have
modified the includes and fixed some indentation nits but otherwise it
is the same. There are a lot more defines than we need, but it doesn't
hurt.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:28 +0000 (16:59 -0400)]
arm64: Save spsr in pt_regs
This register holds "pstate" which includes (among other things) the
instruction mode the CPU was in when the exception was taken. This is
necessary to correctly interpret instructions at elr.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 21:17:35 +0000 (17:17 -0400)]
arm64: Save esr in pt_regs
To avoid passing around an extra register everywhere, save esr in
pt_regs like the rest. For proper alignment we need to have a second
(unused) register. All the printfs have to be adjusted, since
it's now an unsigned long and not an int.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 21:16:05 +0000 (17:16 -0400)]
ls1046ardb: Add support for JTAG boot
This adds support for booting entirely from JTAG while using a
hard-coded RCW. With these steps, it is not necessary to program a
"good" RCW using CodeWarrior. The method here can be performed with any
JTAG adapter supported by OpenOCD, including the on-board CMSIS-DAP
(albeit very slowly).
These steps require LS1046A support in OpenOCD, which was added in [1].
Sean Anderson [Tue, 22 Mar 2022 20:59:24 +0000 (16:59 -0400)]
serial: Add semihosting driver
This adds a serial driver which uses semihosting calls to read and write
to the host's console. For convenience, if CONFIG_DM_SERIAL is enabled,
we will instantiate a serial driver. This allows users to enable this
driver (which has no physical device) without modifying their device
trees or board files. We also implement a non-DM driver for SPL, or for
much faster output in U-Boot proper.
There are three ways to print to the console:
Method Baud
================== =====
smh_putc in a loop 170
smh_puts 1600
smh_write with :tt 20000
================== =====
These speeds were measured using a 175 character message with a J-Link
adapter. For reference, U-Boot typically prints around 2700 characters
during boot on this board. There are two major factors affecting the
speed of these functions. First, each breakpoint incurs a delay. Second,
each debugger memory transaction incurs a delay. smh_putc has a
breakpoint and memory transaction for every character. smh_puts has one
breakpoint, but still has to use a transaction for every character. This
is because we don't know the length up front, so OpenOCD has to check if
each character is nul. smh_write has only one breakpoint and one memory
transfer.
DM serial drivers can only implement a putc interface, so we are stuck
with the slowest API. Non-DM drivers can implement puts, which is vastly
more efficient. When the driver starts up, we try to open :tt. Since
this is an extension, this may fail. If it does, we fall back to
smh_puts. We don't check :semihosting-features, since there are
nonconforming implementations (OpenOCD) which don't implement it (but
*do* implement :tt).
Some semihosting implementations (QEMU) don't handle READC properly. To
work around this, we try to use open/read (much like for stdin) if
possible.
There is no non-blocking I/O available, so we don't implement pending.
This will cause __serial_tstc to always return true. If
CONFIG_SERIAL_RX_BUFFER is enabled, _serial_tstc will try and read
characters forever. To avoid this, we depend on this config being
disabled.
Signed-off-by: Sean Anderson <sean.anderson@seco.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Sean Anderson [Tue, 22 Mar 2022 20:59:23 +0000 (16:59 -0400)]
arm: smh: Add some functions for working with the host console
This adds three wrappers around the semihosting commands for reading and
writing to the host console. We use the more standard getc/putc/puts
names instead of readc/writec/write0 for familiarity.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:22 +0000 (16:59 -0400)]
arm: smh: Remove smhload command
This command's functionality is now completely implemented by the
standard fs load command. Convert the vexpress64 boot command (which is
the only user) and remove the implementation.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:21 +0000 (16:59 -0400)]
cmd: fdt: Use start/size for chosen instead of start/end
Most U-Boot command deal with start/size instead of start/end. Convert
the "fdt chosen" command to use these semantics as well. The only user
of this subcommand is vexpress, so convert the smhload command to use
this as well. We don't bother renaming the variable in vexpress64's
bootcommand, since it will be rewritten in the next commit.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:20 +0000 (16:59 -0400)]
fs: Add semihosting filesystem
This adds a filesystem which is backed by the host's filesystem. It is
modeled off of sandboxfs, which has very similar aims. Semihosting
doesn't support listing directories (except with SYS_SYSTEM), so neither
do we. it's possible to optimize a bit for the common case of reading a
whole file by omitting a call to smh_seek, but this is left as a future
optimization.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:19 +0000 (16:59 -0400)]
spl: Add semihosting boot method
This adds a boot method for loading the next stage from the host. It is
mostly modeled off of spl_load_image_ext. I am not really sure why/how
spl_load_image_fat uses three different methods to load the image, but
the simple case seems to work OK for now.
To control the presence of this boot method, we add a config symbol.
While we're at it, we update the original semihosting config symbol.
I think semihosting has some advantages of other forms of JTAG boot.
Common other ways to boot from JTAG include:
- Implementing DDR initialization through JTAG (typically with dozens of
lines of TCL) and then loading U-Boot. The DDR initialization
typically uses hard-coded register writes, and is not easily adapted
to different boards. BOOT_DEVICE_SMH allows booting with SPL,
leveraging U-Boot's existing DDR initialization code. This is the
method used by NXP's CodeWarrior IDE on Layerscape processors (see
AN12270).
- Loading a bootloader into SDRAM, waiting for it to initialize DDR, and
then loading U-Boot. This is tricky, because the debugger must stop the
boot after the bootloader has completed its work. Trying to load
U-Boot too early can cause failure to boot. This is the method used by
Xilinx with its Zynq(MP) processors.
- Loading SPL with BOOT_DEVICE_RAM and breaking before SPL loads the
image to load U-Boot at the appropriate place. This can be a bit
tricky, because the load address is dependent on the header size. An
elf with symbols must also be used in order to stop at the appropriate
point. BOOT_DEVICE_SMH can be viewed as an extension of this process,
where SPL automatically stops and tells the host where to place the
image.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:16 +0000 (16:59 -0400)]
arm: smh: Return errno on error
Instead of printing in what are now library functions, try to return a
numeric error code. This also adjust some functions (such as read) to
behave more similarly to read(2). For example, we now return the number
of bytes read instead of failing immediately on a short read.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Sean Anderson [Tue, 22 Mar 2022 20:59:15 +0000 (16:59 -0400)]
arm: smh: Use numeric modes for smh_open
There's no point in using string constants for smh_open if we are just
going to have to parse them. Instead, use numeric modes. The user needs
to be a bit careful with these, since they are much closer semantically
to string modes used by fopen(3) than the numeric modes used with
open(2).
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
projects / uboot.git / log