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2023-10-24microblaze: Remove common.h usageTom Rini
We can remove common.h from most cases of the code here, and only a few places need an additional header instead. Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Michal Simek <michal.simek@amd.com>
2023-08-09treewide: rework linker symbol declarations in sections headerShiji Yang
1. Convert all linker symbols to char[] type so that we can get the corresponding address by calling array name 'var' or its address '&var'. In this way, we can avoid some potential issues[1]. 2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has not been referenced by any source code. 3. Move '__data_end' to the arch x86's own sections header as it's only used by x86 arch. 4. Remove some duplicate declared linker symbols. Now we use the standard header file to declare them. [1] This patch fixes the boot failure on MIPS target. Error log: SPL: Image overlaps SPL Fixes: 1b8a1be1a1f1 ("spl: spl_legacy: Fix spl_end address") Signed-off-by: Shiji Yang <yangshiji66@outlook.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2023-07-21arm64: zynqmp: Switch to amd.com emailsMichal Simek
Update my and DPs email address to match current setup. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/aba5b19b9c5a95608829e86ad5cc4671c940f1bb.1688992543.git.michal.simek@amd.com
2023-07-03microblaze: u-boot-spl.lds: Pass _image_binary_endFabio Estevam
Pass _image_binary_end to make a standard way to indicate the end of the text section in SPL. The motivation for this is to have a uniform way to handle the SPL boundary checks. Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Marek Vasut <marex@denx.de>
2023-03-13microblaze: drop remnants of manual relocOvidiu Panait
Runtime relocation has been made the default for microblaze, so do the following cleanups: - drop all manual reloc codepaths in start.S - drop all STATIC_RELA ifdefs, as it is now enabled unconditionally in Kconfig Reviewed-by: Michal Simek <michal.simek@amd.com> Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20230311173838.521804-5-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2023-03-13microblaze: drop CONFIG_NEEDS_MANUAL_RELOCOvidiu Panait
Microblaze and m68k are the only remaining architectures that still enable CONFIG_NEEDS_MANUAL_RELOC by default. Microblaze has had runtime relocation support using CONFIG_STATIC_RELA for quite some time, since commit d58c007498 ("microblaze: Add support for run time relocation"). Drop support for CONFIG_NEEDS_MANUAL_RELOC and make runtime relocation the default, as the rest of the architectures do. Reviewed-by: Michal Simek <michal.simek@amd.com> Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20230311173838.521804-4-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2023-02-10Correct SPL uses of LMBSimon Glass
This converts 9 usages of this option to the non-SPL form, since there is no SPL_LMB defined in Kconfig Signed-off-by: Simon Glass <sjg@chromium.org>
2023-02-09Correct SPL uses of CPU_MICROBLAZESimon Glass
This converts 2 usages of this option to the non-SPL form, since there is no SPL_CPU_MICROBLAZE defined in Kconfig Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-27microblaze: spl: drop boot_linuxOvidiu Panait
Drop boot_linux variable as it is not assigned anywhere. Now that there is no variable controlling linux boot in spl_start_uboot(), make this function always return false when falcon mode is enabled. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20230125164157.1638680-2-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2023-01-27microblaze: spl: wrap spl_start_uboot() in SPL_OS_BOOT ifdefsOvidiu Panait
Make spl_start_uboot() available only if CONFIG_SPL_OS_BOOT is enabled, since it is only used for falcon mode. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20230125164157.1638680-1-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-12-22Convert CONFIG_STANDALONE_LOAD_ADDR to KconfigTom Rini
This converts the following to Kconfig: CONFIG_STANDALONE_LOAD_ADDR Signed-off-by: Tom Rini <trini@konsulko.com>
2022-10-31Rename CONFIG_SYS_TEXT_BASE to CONFIG_TEXT_BASESimon Glass
The current name is inconsistent with SPL which uses CONFIG_SPL_TEXT_BASE and this makes it imposible to use CONFIG_VAL(). Rename it to resolve this problem. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29treewide: Drop bootm_headers_t typedefSimon Glass
This is not needed and we should avoid typedefs. Use the struct instead. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-13microblaze: add arch_print_bdinfo() implementationOvidiu Panait
Allow bdinfo command to print icache/dcache information: U-Boot-mONStR> bdinfo boot_params = 0x00000000 DRAM bank = 0x00000000 -> start = 0x04000000 -> size = 0x04000000 flashstart = 0x00000000 flashsize = 0x00000000 flashoffset = 0x00000000 baudrate = 9600 bps relocaddr = 0x07f76000 reloc off = 0x02f76000 Build = 32-bit current eth = unknown ethaddr = (not set) IP addr = <NULL> fdt_blob = 0x07fec7e0 new_fdt = 0x00000000 fdt_size = 0x00000000 lmb_dump_all: memory.cnt = 0x1 memory[0] [0x4000000-0x7ffffff], 0x04000000 bytes flags: 0 reserved.cnt = 0x1 reserved[0] [0x7e94b8c-0x7ffffff], 0x0016b474 bytes flags: 0 devicetree = embed icache = 32 KiB icache line = 4 Bytes dcache = 32 KiB dcache line = 4 Bytes Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220829170205.1274484-4-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-07-26zynqmp: Run board_get_usable_ram_top() only on main U-BootAshok Reddy Soma
With commit ce39ee28ec31 ("zynqmp: Do not place u-boot to reserved memory location"), the function board_get_usable_ram_top() is allocating MMU_SECTION_SIZE of about 2MB using lmb_alloc(). But we dont have this much memory in case of mini U-Boot. Keep these functions which use lmb under CONFIG_LMB so that they are compiled and used only when LMB is enabled. Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/75e52def75f573e554a6b177a78504c128cb0c4a.1657183534.git.michal.simek@amd.com
2022-07-07Convert CONFIG_SYS_BOOT_RAMDISK_HIGH to KconfigTom Rini
This converts the following to Kconfig: CONFIG_SYS_BOOT_RAMDISK_HIGH Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-27Merge tag 'xilinx-for-v2022.10' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-microblaze into next Xilinx changes for v2022.10 cpu: - Add driver for microblaze cpu net: - Add support for DM_ETH_PHY to AXI emac and emaclite xilinx: - Switch platforms to DM_ETH_PHY - DT chagnes in ZynqMP and Zynq - Enable support for SquashFS zynqmp: - Add support for KR260 boards - Move BSS from address 0 - Move platform identification from board code to soc driver - Improve zynqmp_psu_init_minimize versal: - Enable loading app at EL1 serial: - Setup default address and clock rates for DEBUG uarts pinctrl: - Add support for tri state and output enable properties relocate-rela: - Clean relocate-rela implementation for ARM64 - Add support for Microblaze microblaze: - Add support for runtime relocation - Rework cache handling (wiring, Kconfig) based on cpuinfo - Remove interrupt support timer: - Extract axi timer driver from Microblaze to generic location
2022-06-24microblaze: Remove interrupt handlerMichal Simek
The primary purpose for this code was timer. By converting it to CONFIG_TIMER there is no code which uses this implementation that's why remove it. If there is a need to handle interrupts this patch can be reverted in future. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/5f2decc5a30a5678490ebde26d8c6f5a5f873cda.1654684731.git.michal.simek@amd.com
2022-06-24microblaze: Convert axi timer to DM driverMichal Simek
Move axi timer driver from Microblaze to generic location. Origin implementation was irq based with counting down timer. CONFIG_TIMER drivers are designed differently that timer is free running up timer with automatic reload without any interrupt. Information about clock rates are find out in timer_pre_probe() that's why there is no need to get any additional information from DT in the driver itself (only register offset). Signed-off-by: Michal Simek <michal.simek@amd.com> Tested-by: Ovidiu Panait <ovidiu.panait@windriver.com> Link: https://lore.kernel.org/r/6c12fc86bbc1f17d05c25018862e7b7b03346b36.1654684731.git.michal.simek@amd.com
2022-06-24cpu: add CPU driver for microblazeOvidiu Panait
Add a basic CPU driver that retrieves information about the microblaze CPU core. cpu_ops handlers are implemented so that the "cpu" command can work properly: U-Boot-mONStR> cpu list 0: cpu@0 MicroBlaze @ 50MHz, Rev: 11.0, FPGA family: zynq7000 U-Boot-mONStR> cpu detail 0: cpu@0 MicroBlaze @ 50MHz, Rev: 11.0, FPGA family: zynq7000 ID = 0, freq = 50 MHz: L1 cache, MMU Note: cpu_ver_lookup[] and family_string_lookup[] arrays were imported from linux. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-14-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: add support for handling PVR dataOvidiu Panait
Add helper code for PVR (Processor Version Register) data handling. It will be used by the UCLASS_CPU driver to populate cpuinfo fields at runtime. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-13-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: cache: introduce flush_dcache_range()Ovidiu Panait
Align microblaze with the other architectures and provide an implementation for flush_dcache_range(). Also, remove the microblaze exception in drivers/core/device.c. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-11-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: cache: introduce cpuinfo structureOvidiu Panait
Introduce a minimal cpuinfo structure to hold cache related info. The instruction/data cache size and cache line size are initialized early in the boot to default Kconfig values. They will be overwritten with data from PVR/dtb if the microblaze UCLASS_CPU driver is enabled. The cpuinfo struct was placed in global_data to allow the microblaze UCLASS_CPU driver to also run before relocation (initialized global data should be read-only before relocation). gd_cpuinfo() helper macro was added to avoid volatile "-Wdiscarded-qualifiers" warnings when using the pointer directly. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-10-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com> (s/bralid/brlid/)
2022-06-24microblaze: cache: introduce flush_cache_all()Ovidiu Panait
All flush_cache() calls in microblaze code are supposed to flush the entire instruction and data caches, so introduce flush_cache_all() helper to handle this. Also, provide implementations for flush_dcache_all() and invalidate_icache_all() so that icache and dcache u-boot commands can work. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-9-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: cache: introduce Kconfig options for icache/dcache sizesOvidiu Panait
Replace XILINX_DCACHE_BYTE_SIZE macro with two Kconfig symbols for instruction and data caches sizes, respectively: CONFIG_XILINX_MICROBLAZE0_ICACHE_SIZE CONFIG_XILINX_MICROBLAZE0_DCACHE_SIZE Also, get rid of the hardcoded value in icache_disable(). Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-8-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com> (s/bralid/brlid/g)
2022-06-24microblaze: cache: split flush_cache() functionOvidiu Panait
Factor out icache/dcache components from flush_cache() function. Call the newly added __flush_icache()/__flush_dcache() functions inside icache_disable() and dcache_disable(), respectively. There is no need to flush both caches when disabling a particular cache type. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-7-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: cache: improve icache Kconfig optionsOvidiu Panait
Replace CONFIG_ICACHE with a Kconfig option more limited in scope - XILINX_MICROBLAZE0_USE_WIC. It should be enabled if the processor supports the "wic" (Write to Instruction Cache) instruction. It will be used to guard "wic" invocations in microblaze cache code. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-6-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: cache: improve dcache Kconfig optionsOvidiu Panait
Replace CONFIG_DCACHE with a Kconfig option more limited in scope - XILINX_MICROBLAZE0_USE_WDC. It should be enabled if the processor supports the "wdc" (Write to Data Cache) instruction. It will be used to guard "wdc" invocations in microblaze cache code. Also, drop all ifdefs around flush_cache() calls and only keep one CONFIG_IS_ENABLED() guard within flush_cache() itself. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-5-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: cache: replace XILINX_USE_DCACHE -> CONFIG_DCACHEOvidiu Panait
XILINX_USE_DCACHE macro was removed in 7556fa09e0e ("microblaze: Simplify cache handling"), but it was still used in a couple of places. Replace those occurences with CONFIG_DCACHE. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-4-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: start.S: remove unused codeOvidiu Panait
in16/out16 routines seem to not be used anywhere in microblaze code, so remove them. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-3-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-24microblaze: Add support for run time relocationMichal Simek
Microblaze is using NEEDS_MANUAL_RELOC from the beginnging. This is causing issues with function pointer arrays which need to be updated manually after relocation. Building code with -fPIC and linking with -pic will remove this limitation and there is no longer need to run manual update. By default still old option is enabled but by disabling NEEDS_MANUAL_RELOC code will be compiled for full relocation. The patch does couple of things which are connected to each other. - Define STATIC_RELA dependency to call relocate-rela to fill sections. - REMAKE_ELF was already enabled but u-boot file can't be used because sections are empty. relocate-rela will fill them and output file is u-boot.elf which should be used. - Add support for full relocation (u-boot.elf) - Add support for early relocation when u-boot.bin is loaded to different address then CONFIG_SYS_TEXT_BASE - Add rela.dyn and dynsym sections Disabling NEEDS_MANUAL_RELOC U-Boot size increased by 10% of it's original size (550kB to 608kB). Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/a845670b34925859b2e321875f7588a29f6655f9.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Create SYM_ADDR macro to deal with symbolsMichal Simek
Symbol handling depends on compilation flags. Right now manual relocation is used that's why symbols can be referenced just by name and there is no need to find them out. But when position independent code (PIC) is used symbols need to be described differently. That's why having one macro change is easier than changing the whole code. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/d704e9a267c8b536452fb999111dbfbc9d652be5.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Add comment about reset locationMichal Simek
Better to add comment to explain why reset vector points all the time to origin U-Boot location. If reset happens U-Boot should start from it's origin location. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/5ca6341b7487708247fe2948d7e496ea6f7c2e02.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Remove _start symbol handling at U-Boot startMichal Simek
Right now U-Boot runs all the time from the same address where it is loaded but going to full relocation code starting address doesn't need to be fixed and can be simply discovered from reading PC register. That's why use r20 to get PC address and subtract offset from the beginning to get starting address. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/044b727c33dfbe662f68512d0da0775a4805f360.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Remove code around r20 in relocate_code()Michal Simek
r20 is not used that's why remove logic around it. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/1b32bab5c050d099b2f6d49bc4896322ed03d788.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Optimize register usage in relocate_codeMichal Simek
There are additional operations which can be done simpler that's why improve logic around relocation address r7 handling and _start symbol. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/c8b60f72f1605c2ba6b4b7be1893d7e6ec3d8597.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Change stack protection address to new stack addressMichal Simek
SLR low address is still setup to 0 that's why only high limit should be updated. STACK_SIZE macro is present and could be possible used for low address alignment but it is not done by this patch. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/c00cb843df848703b760a65934ed3ce31fafcf19.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Separate code end substractionMichal Simek
Follow up patch will convert symbol handling that's why it is necessary to separate logic around symbols to special instruction. It adds 4B for new instruction but it is worth to do it to have code ready for for full relocation. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/030863fa9a9c1ca0a9b082fe498522da09189fbc.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Enable REMAKE_ELFMichal Simek
Enable u-boot.elf recreation from u-boot.bin to prepare for removing manul relocation. Enable option for big endian configuration but it is not used too much that's why it is completely untested. By supporting this system there is a need to define LITTLE/BIG endian Kconfig options to pass -EL/-EB flags. Full command line for u-boot.elf recreation looks like this: microblazeel-xilinx-linux-gnu-objcopy -I binary -B microblaze \ -O elf32-microblazeel u-boot.bin u-boot-elf.o Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/7e242a519fcd1c693b9103c5599b515af555ca43.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Fix typo in exception.cMichal Simek
Trivial fix. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/c4ede6dc738c5bd7c518f3bb2c9410b15c102e20.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Remove CONFIG_TEXT_BASE from codeMichal Simek
Use symbol instead macro to find where U-Boot starts. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/d5d4c201bee6171e85b47783d916387d84db0456.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Fix early stack allocationMichal Simek
CONFIG_SYS_INIT_SP_OFFSET macro place stack to TEXT_BASE - SYS_MALLOC_F_LEN but there is no reason to do it now because board_init_f_alloc_reserve() returns exact location where stack should be. That's why stack location is calculated at run time and there is no need to hardcode it via macro. This change will help with placing U-Boot to any address. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/e9aee69646e022fd8a96cbee2d2a07ab81fb6e05.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Fix stack protection behaviorMichal Simek
When U-Boot starts stack protection can be already enabled that's why setup the lowest possible SLR value which is address 0. And the highest possible stack in front of U-Boot. That's why you should never load U-Boot to the beginning of DDR. There must be some space reserved. Code is using this location for early malloc space, early global data and stack. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/86b9748bad12142659804d6381bc6bbf20be44f1.1655299267.git.michal.simek@amd.com
2022-06-24microblaze: Switch absolute branches to relativeMichal Simek
There is no reason to use absolute branches and use just relative. This change helps with moving binary to different location and start it from there. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/83a5103b85c1c2220cd3ab4d5365169c6660e40a.1655299267.git.michal.simek@amd.com
2022-06-23linker_lists: Rename sections to remove . prefixAndrew Scull
Rename the sections used to implement linker lists so they begin with '__u_boot_list' rather than '.u_boot_list'. The double underscore at the start is still distinct from the single underscore used by the symbol names. Having a '.' in the section names conflicts with clang's ASAN instrumentation which tries to add redzones between the linker list elements, causing expected accesses to fail. However, clang doesn't try to add redzones to user sections, which are names with all alphanumeric and underscore characters. Signed-off-by: Andrew Scull <ascull@google.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-06Convert CONFIG_SPL_STACK to KconfigTom Rini
This converts the following to Kconfig: CONFIG_SPL_STACK Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-08microblaze: Migrate DCACHE/ICACHE to KconfigTom Rini
Move these two options to the arch Kconfig file. Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
2022-03-07microblaze: Do not place u-boot to reserved memory locationMichal Simek
Microblaze can also have reserved space in DT which u-boot has to avoid to placing self to that location. The same change was done in Zynqmp by commit ce39ee28ec31 ("zynqmp: Do not place u-boot to reserved memory location"). This feature was tested with this memory description on kc705: memory { device_type = "memory"; reg = <0x80000000 0x40000000>; }; reserved-memory { #address-cells = <1>; #size-cells = <1>; ranges; alloc@b00000000 { reg = <0xb0000000 0x10000000>; no-map; }; alloc@a8000000 { reg = <0xa8000000 0x00010000>; no-map; }; }; And in U-Boot log you can check u-boot relocation address and reserved locations. U-Boot 2022.01-03974-gb1b4c2dea9b9 (Feb 25 2022 - 11:59:48 +0100) Model: Xilinx MicroBlaze DRAM: 1 GiB Flash: 128 MiB Loading Environment from nowhere... OK In: serial Out: serial Err: serial Model: Xilinx MicroBlaze Net: AXI EMAC: 40c00000, phyaddr 7, interface gmii eth0: ethernet@40c00000 U-BOOT for microblaze-generic U-Boot-mONStR> bdi ... DRAM bank = 0x00000000 -> start = 0x80000000 -> size = 0x40000000 ... relocaddr = 0xaff69000 ... lmb_dump_all: memory.cnt = 0x1 memory[0] [0x80000000-0xbfffffff], 0x40000000 bytes flags: 0 reserved.cnt = 0x3 reserved[0] [0xa8000000-0xa800ffff], 0x00010000 bytes flags: 4 reserved[1] [0xafe87bb0-0xafffffff], 0x00178450 bytes flags: 0 reserved[2] [0xb0000000-0xbfffffff], 0x10000000 bytes flags: 4 Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/ea0a8ccce723478eb518f6fdceb91d4f129efb68.1646122398.git.michal.simek@xilinx.com
2022-02-21Merge tag 'xilinx-for-v2022.04-rc3' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze Xilinx changes for v2022.04-rc3 microblaze: - Fix exception handler zynqmp: - Show information about secure images - DT changes (som u-boot file removal) - Fix zynqmp_pm_cfg_obj_convert.py - Fix platform boot xilinx: - Fix bootm_size calculation - Remove GPIO_EXTRA_HEADER selection power: - Add zynqmp power management driver scsi: - Add phy support to ceva driver zynq qspi: - Fix unaligned accesses and check baudrate setup - Add support for spi memory operations net: - Fix 64bit calculation in axi_emac video: - Add missing gpio dependency for seps driver
2022-02-15microblaze: exception: fix unaligned data access register maskOvidiu Panait
The correct mask for getting the source/destination register from ESR in the case of an unaligned access exception is 0x3E0. With this change, a dummy unaligned store produces the expected info: """ >> swi r5, r0, 0x111 ... Hardware exception at 0x111 address Unaligned data access exception Unaligned word access Unaligned store access Register R5 Return address from exception 0x7f99dfc ### ERROR ### Please RESET the board ### """ Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> Link: https://lore.kernel.org/r/20220213080925.1548411-6-ovidiu.panait@windriver.com Signed-off-by: Michal Simek <michal.simek@xilinx.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 17:36:25 +0000