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2021-09-04mmc: Rename MMC_SUPPORT to MMCSimon Glass22-32/+33
Rename these options so that CONFIG_IS_ENABLED can be used with them. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> [trini: Fixup some incorrect renames] Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-03Revert most of the series for adding vexpress_aemv8r supportWIP/03Sep2021-nextTom Rini6-227/+18
Per a request from Andre Przywara and agreed with by Peter Hoyes, the vexpress aemv8r support wasn't quite ready to be merged, but the discussion had moved off list. We should keep the first patch in the series for now, but revert the rest. This reverts the following commits: e0bd6f31ce41 doc: Add documentation for the Arm vexpress board configs 30e5a449e8c7 arm: Use armv8_switch_to_el1 env to switch to EL1 b53bbca63bf4 vexpress64: Add BASER_FVP vexpress board variant 2f5b7b74903f armv8: Add ARMv8 MPU configuration logic 37a757e227cc armv8: Ensure EL1&0 VMSA is enabled Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-02psci: fix double declarationOleksandr Suvorov1-1/+0
The prototype of psci_features() duplicated. Remove extra declaration. Fixed: e21e3ffdd1 ("psci: Fix warnings when compiling with W=1") Reported-by: Michael Scott <mike@foundries.io> Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
2021-09-02ARM: Prevent the compiler from using NEON registersSamuel Holland1-0/+1
For ARMv8-A, NEON is standard, so the compiler can use it even when no special target flags are provided. For example, it can use stores from NEON registers to zero-initialize large structures. GCC 11 decides to do this inside the DRAM init code for the Allwinner H6. However, GCC 11 has a bug where it generates misaligned NEON register stores even with -mstrict-align. Since the MMU is not enabled this early in SPL, the misaligned store causes an exception and breaks booting. Work around this issue by restricting the compiler to using GPRs only, not vector registers. This prevents any future surprises relating to NEON use as well. Signed-off-by: Samuel Holland <samuel@sholland.org> Acked-by: Andre Przywara <andre.przywara@arm.com>
2021-09-02arm: Use armv8_switch_to_el1 env to switch to EL1Peter Hoyes1-15/+25
Use the environment variable armv8_switch_to_el1 to determine whether to switch to EL1 at runtime. This is an alternative to the CONFIG_ARMV8_SWITCH_TO_EL1 compile-time option. The environment variable will be ineffective if the ARMV8_MULTIENTRY config is used. This is required by the Armv8r64 architecture, which must be able to boot at S-EL1 for Linux but may need to boot at other ELs for other systems. Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
2021-09-02vexpress64: Add BASER_FVP vexpress board variantPeter Hoyes1-0/+7
The BASER_FVP board variant is implemented on top of the BASE_FVP board config (which, in turn, is based on the Juno Versatile Express board config). They all share a similar memory map - for BASER_FVP the map is inverted from the BASE_FVP (https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---memory/BaseR-Platform-memory-map) * Create new TARGET_VEXPRESS64_BASER_FVP target, which uses the same board config as BASE_FVP and JUNO * Adapt vexpress_aemv8a.h header file to support BASER_FVP (and rename to vexpress_aemv8.h) * Enable config to switch to EL1 for the BASER_FVP * Create vexpress_aemv8r defconfig * Provide an MPU memory map for the BASER_FVP For now, only single core boot is supported. Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com> [trini: Add MAINTAINERS, move BOOTCOMMAND to defconfig] Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-02armv8: Add ARMv8 MPU configuration logicPeter Hoyes2-3/+154
Armv8r64 is the first Armv8 platform that only has a PMSA at the current exception level. The architecture supplement for Armv8r64 describes new fields in ID_AA64MMFR0_EL1 which can be used to detect whether a VMSA or PMSA is present. These fields are RES0 on Armv8a. Add logic to read these fields and, for the protection of the memory used by U-Boot, initialize the MPU instead of the MMU during init, then clear the MPU regions before transition to the next stage. Provide a default (blank) MPU memory map, which can be overridden by board configurations. Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
2021-09-02armv8: Ensure EL1&0 VMSA is enabledPeter Hoyes2-0/+41
On Armv8-R, the EL1&0 memory system architecture is configurable as a VMSA or PMSA, and resets to an "architecturally unknown" value. Add code to armv8_switch_to_el1_m which detects whether the MSA at EL1&0 is configurable using the id_aa64mmfr0_el1 register MSA fields. If it is we must ensure the VMSA is enabled so that a rich OS can boot. The MSA and MSA_FRAC fields are described in the Armv8-R architecture profile supplement (section G1.3.7): https://developer.arm.com/documentation/ddi0600/latest/ Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
2021-09-02armv8: Disable pointer authentication traps for EL1Peter Hoyes4-4/+26
The use of ARMv8.3 pointer authentication (PAuth) is governed by fields in HCR_EL2, which trigger a 'trap to EL2' if not enabled. The reset value of these fields is 'architecturally unknown' so we must ensure that the fields are enabled (to disable the traps) if we are entering the kernel at EL1. The APK field disables PAuth instruction traps and the API field disables PAuth register traps Add code to disable the traps in armv8_switch_to_el1_m. Prior to doing so, it checks fields in the ID_AA64ISAR1_EL1 register to ensure pointer authentication is supported by the hardware. The runtime checks require a second temporary register, so add this to the EL1 transition macro signature and update 2 call sites. Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
2021-09-02arm: mach-snapdrgon: misc: Simplify msm_generate_mac_addr()Stephan Gerhold1-11/+10
The logic in msm_generate_mac_addr() was originally taken from the LK bootloader where the serial number is a string and must be parsed first. However, in U-Boot msm_board_serial() returns an u32 and msm_generate_mac_addr() has quite complicated code that will first print it as a hex string and then immediately parse it again. What this function actually does at the end is to put the serial number encoded as big endian (the order used for the hex string) into the u8 *mac. Use put_unaligned_be32() to do that with bit shifts instead of going through the string format. This should be slightly more efficient and cleaner but does not result in any functional difference. Cc: Ramon Fried <rfried.dev@gmail.com> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-02arm: mach-snapdragon: misc: Initialize eMMC if necessaryStephan Gerhold1-0/+3
At the moment U-Boot produces an empty MAC address (02:00:00:00:00:00) if the eMMC is not used by anything in U-Boot (e.g. with CONFIG_ENV_IS_NOWHERE=y instead of having the environment on eMMC). This happens because then there is nothing that actually initializes the eMMC and reads the "cid" that is later accessed. To fix this, call mmc_init() to ensure the eMMC is initialized. There is no functional difference if the eMMC is already initialized since then mmc_init() will just return without doing anything. Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-09-02armv7: Add Position Independent Execution supportChia-Wei Wang4-11/+80
A U-Boot image could be loaded and executed at a different location than it was linked at. For example, Aspeed takes a stable release version of U-Boot image as the golden one for recovery purposes. When the primary storage such as flash is corrupted, the golden image would be loaded to any SRAM/DRAM address on demands through ethernet/UART/etc and run for rescue. To deal with this condition, the PIE is needed as there is only one signed, golden image, which could be however executed at different places. This patch adds the PIE support for ARMv7 platform. Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
2021-09-02arm: Fix option dependency with Kconfig languageChia-Wei Wang1-4/+5
Use Kconfig 'depends on' instead of #if macro to express the option depdencies. Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
2021-09-01arm: u8500: Prefer building in thumb mode by defaultStephan Gerhold1-0/+1
Enabling CONFIG_SYS_THUMB_BUILD produces a significantly smaller U-Boot binary (250 KiB vs 320 KiB) that still seems to be fully functional. Make use of that by default but keep it as "imply" so it can be disabled for testing in case this causes trouble for someone. Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-09-01board: stemmy: Update documentationStephan Gerhold1-5/+6
Over the time, the "stemmy" U-Boot board was tested on several other Samsung smartphones based on ST-Ericsson NovaThor Ux500. Convert the documentation to reStructuredText at doc/board/ste/stemmy.rst and make the device list complete. Also note that the board now boots into USB Fastboot instead of just ending up at the U-Boot prompt. The device table is mostly taken from the postmarketOS wiki article (https://wiki.postmarketos.org/wiki/ST-Ericsson_NovaThor_U8500). All the newly added devices were tested by Linus Walleij. Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-09-01board: stemmy: Add basic Fastboot supportStephan Gerhold1-0/+16
Make use of the new drivers for ARM U8500 introduced in the U-Boot 2021.10 merge window by adding basic support for USB Fastboot with the "stemmy" board. As a first step this will always boot directly into USB Fastboot for now with the console displayed on the screen to make that obvious. Samsung uses quite strange GPT partition labels on these boards, so also add a bunch of fastboot_partition_alias_* to make this more easy to use. Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-09-01arm: dts: u8500: u-boot: Add fixed clock for eMMCStephan Gerhold1-1/+10
So far there is no need for a clock driver in U-Boot because the previous boot stage leaves all the necessary clocks on. However, some drivers in U-Boot (e.g. arm_pl180_mmci) depend on having a clock driver to obtain the clock frequency. Setting up the clock drivers properly is a bit tricky on U8500, so for now add a simple fixed-clock for the eMMC that allows obtaining the clock frequency. This should be replaced eventually if some board actually requires enabling some of the clocks. Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-09-01arm: dts: u8500: Update from Linux ux500-dts-for-v5.15Stephan Gerhold3-50/+175
Update ste-dbx5x0.dtsi, ste-ab8500.dtsi and ste-ab8505.dtsi with the changes made in upstream Linux. They are taken from https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git/ branch "ux500-dts-for-v5.15" (pending merge for Linux 5.15). The only relevant change for U-Boot here is "ARM: dts: ux500: ab8500: Link USB PHY to USB controller node" [1] which links the USB PHY to the USB controller. This is necessary on U-Boot because the PHY driver is implemented as part of the generic PHY subsystem that makes use of these bindings. [1]: https://lore.kernel.org/linux-arm-kernel/20210709182234.47232-1-stephan@gerhold.net/ Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-09-01arm: u8500: Imply options for new driversStephan Gerhold1-0/+7
Imply the options for new drivers added for ARM U8500 during the U-Boot 2021.10 merge window. Adding these as "imply" in the Kconfig avoids having to add them to all the board defconfigs but still allows disabling them if wanted. Also select DM_USB_GADGET if DM_USB is selected because otherwise the Ux500 MUSB glue driver does not show up in the configuration. Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-08-31Merge branch 'next' of ↵WIP/31Aug2021-nextTom Rini1-0/+8
https://gitlab.denx.de/u-boot/custodians/u-boot-marvell into next - Handling all DM watchdogs in watchdog_reset() (Rasmus)
2021-08-31Kconfig: Remove all default n/no optionsMichal Simek18-63/+1
default n/no doesn't need to be specified. It is default option anyway. Signed-off-by: Michal Simek <michal.simek@xilinx.com> [trini: Rework FSP_USE_UPD portion] Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31Convert CONFIG_SKIP_LOWLEVEL_INIT et al to KconfigTom Rini30-59/+121
This converts the following to Kconfig: CONFIG_SKIP_LOWLEVEL_INIT CONFIG_SKIP_LOWLEVEL_INIT_ONLY In order to do this, we need to introduce SPL and TPL variants of these options so that we can clearly disable these options only in SPL in some cases, and both instances in other cases. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31Finish converting CONFIG_SYS_CACHELINE_SIZE to KconfigTom Rini15-79/+68
We move the SYS_CACHE_SHIFT_N options from arch/arm/Kconfig to arch/Kconfig, and introduce SYS_CACHE_SHIFT_4 to provide a size of 16. Introduce select statements for other architectures based on current usage. For MIPS, we take the existing arch-specific symbol and migrate to the generic symbol. This lets us remove a little bit of otherwise unused code. Cc: Alexey Brodkin <alexey.brodkin@synopsys.com> Cc: Anup Patel <anup.patel@wdc.com> Cc: Atish Patra <atish.patra@wdc.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Leo <ycliang@andestech.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com>
2021-08-31imx: Finish migration of IMX_CONFIG to KconfigTom Rini2-2/+6
- Provide a default Kconfig value of the default script - Largely continue to define this via the board Kconfig file - For the boards that select a script based on defconfig rather than TARGET, keep this within the defconfig. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31imx: Introduce CONFIG_MACH_IMXTom Rini2-0/+16
Currently, there is no over-arching symbol for access to arch/arm/mach-imx nor the CONFIG symbols that are common over all of these related platforms. This new CONFIG symbol will allow us to start down this path. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31Convert CONFIG_MX7D to KconfigTom Rini1-0/+1
This converts the following to Kconfig: CONFIG_MX7D Cc: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31nxp: Migrate a number of DDR related symbols to KconfigTom Rini3-11/+1
- Guard most of the options in drivers/ddr/fsl/Kconfig with SYS_FSL_DDR || SYS_FSL_MMDC. - Migrate FSL_DMA, DDR_ECC, DDR_ECC_CMD, and ECC_INIT_VIA_DDRCONTROLLER to Kconfig. - Clean up the logic for including the DDR_ECC_CMD code. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31nxp: Migrate CONFIG_DDR_CLK_FREQ to KconfigTom Rini5-14/+17
As this symbol can either be a fixed value or the function get_board_ddr_clk, migration is tricky. Introduce a choice of DYNAMIC or STATIC_DDR_CLK_FREQ. If DYNAMIC, we continue to use the board defined get_board_ddr_clk function. If STATIC, set CONFIG_DDR_CLK_FREQ to that value and now include/clock_legacy.h contains the function prototype or defines get_board_ddr_clk() to that static value. Update callers to test for DYNAMIC or STATIC. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31ddr: Migrate DDR_SPD to KconfigTom Rini1-0/+1
Move the symbol that controls building some JEDEC SPD support functions to Kconfig. This is required on the TI keystone 2 platforms and very frequently (but not always) used on large number of Freescale/NXP platforms, so use imply there. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31mvebe: Migrate CONFIG_DDR_LOG_LEVEL to KconfigTom Rini1-0/+14
Move this specific option to Kconfig. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31mvebu: Migrate CONFIG_DDR_32BIT/64BIT to KconfigTom Rini1-0/+13
Move CONFIG_DDR_32BIT/64BIT to Kconfig as a choice for Armada XP platforms. Make 64bit the default as this mirrors the current code. Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
2021-08-31sandbox: add test of wdt-uclass' watchdog_reset()Rasmus Villemoes1-0/+2
Check that the watchdog_reset() implementation in wdt-uclass behaves as expected: - resets all activated watchdog devices - leaves unactivated/stopped devices alone - that the rate-limiting works, with a per-device threshold Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-08-31sandbox: add test of wdt_gpio driverRasmus Villemoes1-0/+6
It seems that no other test has claimed gpio_a:7 yet, so use that. The only small wrinkle is modifying the existing wdt test to use uclass_get_device_by_driver() since we now have two UCLASS_WDT instances in play, so it's a little more robust to fetch the device by driver and not merely uclass+index. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-08-30global: Remove unused or unnecessary CONFIG symbols related to DDRTom Rini2-12/+1
These symbols are now either unused or were only used within the config file to determine other logic, which could be done in a way that doesn't further pollute the CONFIG namespace. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Kconfig: Use spaces not tabs in Kconfig entiresWIP/2021-08-30-kconfig-migrations-part1-nextTom Rini1-1/+1
While the Kconfig language seems to accept either form of whitespace, we use a space throughout the project, except in these spots. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30global: Remove dead code that starts with CONFIG_[0-9A]Tom Rini2-148/+0
This removes a number of spots of dead code based on symbols that start with CONFIG_[0-9] or CONFIG_A. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30arm: Migrate GICV2 / GICV3 to KconfigTom Rini6-5/+32
Migrate CONFIG_GICV2 and CONFIG_GICV3 to Kconfig. We still have the GIC related registers that need to be handled more cleanly but start by moving this symbol to Kconfig. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30rcar: i2c: Migrate SYS_I2C_SH to KconfigTom Rini7-28/+0
- Migrate SYS_I2C_SH and related defines to Kconfig - Remove currently unused SYS_I2C_SH related defines - Cleanup related README section. Cc: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Convert CONFIG_SYS_I2C_MXC et al to KconfigTom Rini2-0/+2
This converts the following to Kconfig: CONFIG_SYS_I2C_MXC CONFIG_SYS_I2C_MXC_I2C1 CONFIG_SYS_I2C_MXC_I2C2 CONFIG_SYS_I2C_MXC_I2C3 CONFIG_SYS_I2C_MXC_I2C4 Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Convert CONFIG_SYS_I2C_SPEED et al to KconfigTom Rini2-10/+0
This converts the following to Kconfig: CONFIG_SYS_I2C_SPEED CONFIG_SYS_I2C_SLAVE Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30ti: i2c: Convert CONFIG_SYS_OMAP24_I2C to CONFIG_SYS_I2C namespaceTom Rini2-3/+3
The omap24xx I2C driver uses its own CONFIG namespace for common I2C variables. Rather than convert more of them to Kconfig, rename these to the common I2C ones and remove the entirely unused functionality. As part of this, we make the am335x_shc platforms consistent with their intended speed values. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Convert CONFIG_SYS_I2C_EARLY_INIT to KconfigTom Rini1-3/+0
Convert SYS_I2C_EARLY_INIT to Kconfig, and make it depend on SPL_SYS_I2C_LEGACY. Remove the weak implementation as it's either something that needs to exist for real, or shouldn't be called. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Convert CONFIG_SYS_I2C_LEGACY to Kconfig and add CONFIG_[ST]PL_SYS_I2C_LEGACYTom Rini6-6/+14
First, we convert CONFIG_SYS_I2C_LEGACY to Kconfig. Next, as you cannot have SYS_I2C_LEGACY and DM_I2C at the same time, introduce CONFIG_SPL_SYS_I2C_LEGACY so that we can enable the legacy option only in SPL. Finally, for some PowerPC cases we also need CONFIG_TPL_SYS_I2C_LEGACY support. Convert all of the existing users to one or more symbols. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Convert CONFIG_SYS_I2C_MVTWSI to KconfigTom Rini1-1/+0
This converts the following to Kconfig: CONFIG_SYS_I2C_MVTWSI Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30Convert CONFIG_ID_EEPROM to KconfigTom Rini2-0/+6
This converts the following to Kconfig: CONFIG_ID_EEPROM Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30davinci: Drop CONFIG_MAC_ADDR_IN_EEPROMTom Rini2-28/+0
Looking over the current boards, there are no users of CONFIG_MAC_ADDR_IN_EEPROM. Further, omapl138_lcdk uses CONFIG_NET_RANDOM_ETHADDR. Drop various unused code paths. Cc: Adam Ford <aford173@gmail.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30powerpc: Remove unused FCC ethernet codeTom Rini3-465/+0
This code is no longer used, remove it. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-27Merge tag 'xilinx-for-v2021.10-rc3' of ↵WIP/27Aug2021Tom Rini19-38/+148
https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze Xilinx changes for v2021.10-rc3 xilinx: - Disable CONFIG_ARCH_FIXUP_FDT_MEMORY - Print information about cpu via soc drivers and enable DISPLAY_CPUINFO - Wire infrastructure for DTB_RESELECT and MULTI_DTB_FIT zynq: - Wire single QSPI - Use power-source instead of io-standard properties - Enable nor on zc770-xm012 zynqmp: - Change handling around multi_boot() - Setup offset for u-boot.itb in spi - Generate run time dfu_alt_info for capsule update - Use explicit values for enums (zynqmp_firmware.h) - Enable RTC/SHA1/BUTTON/BUTTON_GPIO command - Disable WDT driver by default - Bind usb/scsi via preboot because of EFI - DT updates/fixes - Add soc driver - Fix SPL SPI boot mode versal: - Add soc driver sdhci: - Update tap delay programming for zynq_sdhci driver cmd: - Fix RTC uclass handling in date command - Update pwm help message - Update reset help message watchdog: - Fix wwdt compilation rtc: - Deal with seq alias in rtc uclass - Add zynqmp RTC driver fdt: - Add kernel-doc for fdt_fixup_memory_banks()
2021-08-26xilinx: zynqmp: Update descriptions for u-boot.itsMichal Simek1-2/+2
Use TF-A instead of ATF in description. And update generic description with removing ATF because also configurations without it are supported. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2021-08-26xilinx: common: Enabling generic function for DT reselectionMichal Simek1-0/+3
U-Boot support board detection at run time and based on it change DT. This feature is implemented for SOM Kria platforms which contain two eeproms which contain information about SOM module and CC (Carrier card). Full U-Boot starts with minimal DT file defined by CONFIG_DEFAULT_DEVICE_TREE which is available in multi DTB fit image. It is using default setup of board_name variable initializaed to DEVICE_TREE which corresponds to CONFIG_DEFAULT_DEVICE_TREE option. When DTB_RESELECT is enabled board_detection() is called. Keep it your mind that this code is called before relocation. board_detection() is calling xilinx_read_eeprom() which fills board_info (xilinx_board_description) structure which are parsed in board_name_decode(). Based on DT configuration and amount of nvmemX aliases name of the board is composed by concatenating CONFIG_SYS_BOARD "-" <board_name> "-rev" <board_revision> "-" <cc_name> "-rev" <cc_revision>. If CC is not present or more are available it keeps going. When board name is composed and returned from board_name_decode() it is assigned to board_name variable which is used by board_fit_config_name_match() which is called via fdtdec_setup() when it goes over config options in multi dtb FIT image. From practical point of view multi DTB image is key point here which has to contain configs for detected combinations. Unfortunately as of now they have to be full DTBs and DTBOs are not supported. That's why configuration like: config_X { description = "zynqmp-board-cc"; fdt = "board", "cc"; }; needs to be squashed together with: fdtoverlay -o zynqmp-board-cc -i arch/arm/dts/zynqmp-board.dtb \ arch/arm/dts/zynqmp-cc.dtbo and only one dtb is in fit: config_X { description = "zynqmp-board-cc"; fdt = "board-cc"; }; For creating multi DTBs fit image use mkimage -E, e.g.: mkimage -E -f all.its all.dtb When DTB_RESELECT is enabled xilinx_read_eeprom() is called before relocation and it uses calloc for getting a buffer. Because this is dynamic memory it is not relocated that's why xilinx_read_eeprom() is called again as the part of board_init(). This second read with calloc buffer placed in proper position board_late_init_xilinx() can setup u-boot variables as before. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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