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2022-04-10net: phy: fix parsing wrong propertyMarek Behún1-1/+1
The "phy-interface-type" property should be "phy-connection-type". Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10treewide: use dm_mdio_read/write/reset() wrappersMarek Behún5-48/+27
Use the new dm_mdio_read/write/reset() wrappers treewide, instead of always getting and dereferencing MDIO operations structure pointer. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10net: mdio-uclass: add wrappers for read/write/reset operationsMarek Behún2-0/+62
Add wrappers dm_mdio_read(), dm_mdio_write() and dm_mdio_reset() for DM MDIO's .read(), .write() and .reset() operations. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10net: introduce helpers to get PHY ofnode from MACMarek Behún7-18/+96
Add helpers ofnode_get_phy_node() and dev_get_phy_node() and use it in net/mdio-uclass.c function dm_eth_connect_phy_handle(). Also add corresponding UT test. This is useful because other part's of U-Boot may want to get PHY ofnode without connecting a PHY. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-10net: mdio-uclass: use ARRAY_SIZE()Marek Behún1-6/+5
Use the ARRAY_SIZE() macro instead of hardcoding sizes of arrays in macros. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10net: mdio-uclass: fix type for phy_mode_str and phy_handle_strMarek Behún1-5/+6
These global variables should both have type static const char * const Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10net: phy: dp83867: Fix a never true comparisonHaolin Li1-2/+5
The type of the return value of phy_read() and phy_read_mmd() is int. Change the variable to not be unsigned so that we not get into an unsigned compared against 0. Signed-off-by: Haolin Li <li.haolin@qq.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-10net: phy: atheros: avoid error in ar803x_of_init() when PHY has no OF nodeVladimir Oltean1-1/+1
A DM_ETH driver may use phy_connect() towards a PHY address on an MDIO bus which is not specified in the device tree, as evidenced by: pfe_eth_probe -> pfe_phy_configure -> phy_connect When this happens, the PHY will have an invalid OF node. When ar803x_config() runs, it silently fails at ar803x_of_init(), and therefore, fails to run the rest of the initialization. This makes MII_BMCR contain what it had after BMCR_RESET (0x8000) has been written into it by phy_reset(). Since BMCR_RESET is volatile and self-clearing, the MII_BMCR ends up having a value of 0x0. The further configuration of this register, which is supposed to be handled by genphy_config_aneg() lower in ar803x_config(), never gets a chance to run due to this early error from ar803x_of_init(). As a result of having MII_BMCR as 0, the following symptom appears: => setenv ethact pfe_eth0 => setenv ipaddr 10.0.0.1 => ping 10.0.0.2 pfe_eth0 Waiting for PHY auto negotiation to complete......... TIMEOUT ! Could not initialize PHY pfe_eth0 Manually writing 0x1140 into register 0 of the PHY makes the connection work, but it is rather desirable that the port works without any manual intervention. Fixes: fe6293a80959 ("phy: atheros: add device tree bindings and config") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-10net: phy: dp83867: avoid error in dp83867_of_init() when PHY has no OF nodeVladimir Oltean1-1/+1
A DM_ETH driver may use phy_connect() towards a PHY address on an MDIO bus which is not specified in the device tree, as evidenced by: pfe_eth_probe -> pfe_phy_configure -> phy_connect When this happens, the PHY will have an invalid OF node. The dp83867_config() method has extra initialization steps which are bypassed when the PHY lacks an OF node, which is undesirable because it will lead to broken networking. Allow the rest of the code to run. Fixes: 085445ca4104 ("net: phy: ti: Allow the driver to be more configurable") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-04Merge tag 'u-boot-at91-2022.07-a' of ↵WIP/04Apr2022-nextTom Rini27-454/+1874
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.
2022-04-02Revert "global: Remove CONFIG_SYS_EXTRA_OPTIONS support"WIP/02Apr2022-nextTom Rini7-5/+122
Unfortunately, we require additional logic to buildman to support this removal and still use SYS_SOC, etc, for build targets. This reverts commit eeec00072d7a0b5b91896d014618e558ce438738. Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-02Merge branch '2022-04-01-arm-semihosting-cleanups-and-new-features' into nextTom Rini51-411/+2390
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. [1] https://developer.arm.com/tools-and-software/simulation-models/fast-models 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). [1] https://lore.kernel.org/u-boot/CACRpkdZ+9fmNjC_mvrbPa9-iuTQVd8UkJ7Zpe7cL0c5vZygsVw@mail.gmail.com/T/ [2] https://lore.kernel.org/u-boot/20220222183840.1355337-2-sean.anderson@seco.com/
2022-04-01serial: dm: Add support for putsSean Anderson3-2/+55
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>
2022-04-01arm64: ls1046a: Support semihosting fallbackSean Anderson2-2/+4
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>
2022-04-01serial: smh: Initialize serial only if semihosting is enabledSean Anderson1-1/+10
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>
2022-04-01arm64: Catch non-emulated semihosting callsSean Anderson2-0/+58
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>
2022-04-01arm: smh: Add option to detect semihostingSean Anderson3-0/+72
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>
2022-04-01arm64: Import some ESR and SPSR defines from LinuxSean Anderson2-0/+416
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>
2022-04-01arm64: Save spsr in pt_regsSean Anderson2-2/+5
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>
2022-04-01arm64: Save esr in pt_regsSean Anderson5-26/+26
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>
2022-04-01ls1046ardb: Add support for JTAG bootSean Anderson5-1/+89
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]. [1] https://sourceforge.net/p/openocd/code/ci/5b70c1f679755677c925b4e6dd2c3d8be4715717/ Signed-off-by: Sean Anderson <sean.anderson@seco.com> [trini: Add reference to doc/board/nxp/ls1046ardb.rst]
2022-04-01doc: smh: Update semihosting documentationSean Anderson1-4/+67
This documents how to use semihosting, the new semihosting features, and how to migrate from smhload. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01serial: Add semihosting driverSean Anderson5-0/+173
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>
2022-04-01arm: smh: Add some functions for working with the host consoleSean Anderson2-0/+37
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>
2022-04-01arm: smh: Remove smhload commandSean Anderson2-81/+5
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>
2022-04-01cmd: fdt: Use start/size for chosen instead of start/endSean Anderson2-11/+11
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>
2022-04-01fs: Add semihosting filesystemSean Anderson6-2/+160
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>
2022-04-01spl: Add semihosting boot methodSean Anderson5-5/+96
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>
2022-04-01arm: smh: Add some file manipulation commandsSean Anderson2-11/+76
In order to add filesystem support, we will need to be able to seek and write files. Add the appropriate helper functions. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01arm: smh: Document functions in headerSean Anderson2-9/+32
This adds some documentation for semihosting functions in the header. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01arm: smh: Return errno on errorSean Anderson1-31/+36
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>
2022-04-01arm: smh: Use numeric modes for smh_openSean Anderson2-19/+27
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>
2022-04-01arm: smh: Export semihosting functionsSean Anderson2-5/+20
This exports semihosting functions for use in other files. The header is in include/ and not arm/include/asm because I anticipate that RISC-V may want to add their own implementation at some point. smh_len_fd has been renamed to smh_flen to more closely match the semihosting spec. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01arm: smh: Add semihosting entry to MAINTAINERSSean Anderson1-0/+5
These files are spread all over the tree, so just use a regex. Orphaned for now, since this is more of a "one-off" series. Though I'll be happy to review patches. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01doc: ls1046ardb: Document debug uartSean Anderson1-0/+9
This adds some instructions for enabling the debug uart, including the correct address and clock rate. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01doc: ls1046ardb: Expand boot mode sectionSean Anderson1-3/+14
This adds some additional info about booting from different sources, including the correct switch positions. Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01nxp: ls1046ardb: Convert README to rSTSean Anderson4-76/+102
This converts the readme for this board to rST. I have tried not to change any semantics from the original (though I did convert MB to M). Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01doc: Convert semihosting readme to rSTSean Anderson2-15/+21
This converts the semihosting readme to rST. I have tried to make only cosmetic changes, but I did fix up the first link (which was broken). Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-04-01vexpress64: Add ARMv8R-64 board variantPeter Hoyes8-6/+74
The ARMv8-R64 architecture introduces optional VMSA (paging based MMU) support in the EL1/0 translation regime, which makes that part mostly compatible to ARMv8-A. Add a new board variant to describe the "BASE-R64" FVP model, which inherits a lot from the existing v8-A FVP support. One major difference is that the memory map in "inverted": DRAM starts at 0x0, MMIO is at 2GB [1]. * Create new TARGET_VEXPRESS64_BASER_FVP target, sharing most of the exising configuration. * Implement inverted memory map in vexpress_aemv8.h * Create vexpress_aemv8r defconfig * Provide an MMU memory map for the BASER_FVP * Update vexpress64 documentation At the moment the boot-wrapper is the only supported secure firmware. As there is no official DT for the board yet, we rely on it being supplied by the boot-wrapper into U-Boot, so use OF_HAS_PRIOR_STAGE, and go with a dummy DT for now. [1] https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---memory/BaseR-Platform-memory-map Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com> [Andre: rebase and add Linux kernel header] Signed-off-by: Andre Przywara <andre.przywara@arm.com> [trini: Add MAINTAINERS entry for Peter]
2022-04-01vexpress64: pick DRAM size from DTAndre Przywara1-10/+2
So far the DRAM size for both the Juno and the FVP model were hardcoded in our config header file. For the Juno this is fine, as all models have 8 GiB of DRAM, but the DRAM size can be configured on the model command line. Drop the fixed DRAM size setup, instead look up the size in the device tree, that we now have for every board. This allows a user to inject a DT with the proper size, and be able to use the full amount of DRAM. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: generalise page table generationAndre Przywara2-8/+20
In preparation for the ARMv8-R64 FVP support, which has DRAM mapped at 0x0, generalise the page table generation, by using symbolic names for the address ranges instead of fixed numbers. We already define the base of the DRAM and MMIO regions, so just use those symbols in the page table description. Rename V2M_BASE to the more speaking V2M_DRAM_BASE on the way. On the VExpress memory map, the address space right after 4GB is of no particular interest to software, as the whole of DRAM is mapped at 32GB instead. The first 2 GB alias to the lower 2GB of DRAM mapped below 4GB, so we skip this part and map some more of the high DRAM, should anyone need it. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: defconfigs: allow default commandsAndre Przywara2-17/+0
Right now the defconfig the Arm VExpress64 boards disables quite some standard commands, for apparently no good reasons (as image size is hardly a concern here). Remove the lines explicitly disabling those features, leaving it to the U-Boot default settings to set them. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: fvp: add distro_boot supportAndre Przywara4-9/+55
So far the FVP model just supports booting through semihosting, so by loading files from the host the model is running on. This allows for quick booting of new kernels (or replacing DTBs), but prevents more featureful boots like using UEFI. Enable the distro_boot feature, and provide a list of possible boot sources that U-Boot should check: - For backwards compatibility we start with semihosting, which gets its commands migrated from CONFIG_BOOTCOMMAND into the distro_boot infrastructure. This is also slightly tweaked to fail graceful in case the required files could not be found. - Next we try to use a user provided script, that could be easily placed into memory using the model command line. - Since we gained virtio support with the enablement of OF_CONTROL, let's check virtio block devices next. This is where UEFI boot can be easily used, for instance by providing a distro installer .iso file through virtio-blk. - Networking is now provided by virtio as well, so enable the default PXE and DHCP boot flows, mostly because we can. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: move hardware setting from defconfig to KconfigAndre Przywara4-32/+44
The defconfigs for the Arm Juno board and the FVP model are quite large, setting a lot of platform-fixed variables like SYS_TEXT_BASE. As those values are not really a user choice, let's provide default values for them in our Kconfig file, so a lot of cruft can be removed from the defconfig files. This also moves the driver selection out of there, since this is again not something a user should really decide on. Instead we allow users to enable or disable subsystems, and select the appropriate drivers based on that in the Kconfig file. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: config header: unify environment definitionAndre Przywara1-38/+45
The definition of the standard environment variables (kernel_addr_r and friends) has been improved lately for the FVP model, but the Juno board is still using some custom scheme. Since we need to extend this to a third board soon, let's unify the definition: - Define the Juno addresses in the same generic way we do for the FVP model, and move the actual variable setting out of the board #ifdef's. - Add the missing addresses for a PXE file and a boot script. - Cleanup some stale comments on the way. As the FVP model doesn't have support for distro_boot quite yet, add a dummy definition for now, to be replaced with the real thing later. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: fvp: enable OF_CONTROLAndre Przywara5-4/+17
The FVP base model is relying on a DT for Linux operation, so there is no reason we would need to rely on hardcoded information for U-Boot. Letting U-Boot use a DT will open up the usage of actual peripherals, beyond the support for semihosting only. Enable OF_CONTROL in the Kconfig, and use the latest dts files from Linux. Depending on whether we use the boot-wrapper or TF-A, there is already a DTB provided or not, respectively. To cover the boot-wrapper, we add an arm64 Linux kernel header, which allows the boot-wrapper to treat U-Boot like a Linux kernel. U-Boot will find the pointer to the DTB in x0, and will use it. Even though TF-A carries a DT, at the moment this is not made available to non-secure world, so to not break users, we use the U-Boot provided DTB copy in that case. For some reason TF-A puts some DT like structure at the address x0 is pointing at, but that is very small and doesn't carry any hardware information. Make the code to ignore those small DTBs. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01arm: dts: Add Arm FVP Fastmodel RevC .dts files from LinuxAndre Przywara3-0/+531
The Arm Fixed Virtual Platform (FVP) is a software model for an artificial ARM platform, it is available for free on the Arm website[1]. Add the devicetree files for the latest RevC version, as we will need them to enable OF_CONTROL for the vexpress_aemv8a_semi board. This is a verbatim copy of the respective files from Linux v5.17-rc6, which is unchanged from the v5.16 release. [1] https://developer.arm.com/tools-and-software/simulation-models/fast-models Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01vexpress64: Kconfig: move board definitions out of arch/armAndre Przywara4-30/+25
At the moment we define three "VExpress64" boards in arch/arm/Kconfig, plus have a second Kconfig file in board/armltd/Kconfig. One of those three boards is actually bogus (TARGET_VEXPRESS64_AEMV8A), that stanza looks like being forgotten in a previous cleanup. To remove the clutter from the generic Kconfig file, just define some ARCH_VEXPRESS64 symbol there, enable some common options, and do the board/model specific configuration in the board/armltd Kconfig file. That allows to streamline and fine tune the configuration later, and to also pull a lot of "non user choices" out of the defconfigs. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-04-01Merge branch '2022-04-01-Kconfig-migrations-and-cleanups' into nextWIP/01Apr2022-nextTom Rini643-1715/+941
- Migrate a number of CONFIG symbols to Kconfig. Of note, with this we now complete migration of CONFIG_SYS_EXTRA_OPTIONS.
2022-04-01configs: Resync with savedefconfigTom Rini225-523/+464
Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>