u-boot.git/arch/arm/cpu, branch v2023.07

sunxi: u-boot-spl.lds: Pass _image_binary_end

2023-07-03T14:20:13Z

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 Reviewed-by: Marek Vasut

ARM: arm11: Add C wrapper for allow_unaligned()

2023-07-01T15:29:15Z

Rename current assembler implementation of allow_unaligned() to arm11_arch_cp15_allow_unaligned() and add it into arm11.h header, then add C wrapper of allow_unaligned(). This fixes misbehavior when linking U-Boot, where the CPU specific allow_unaligned() implementation was ignored and instead the __weak allow_unaligned() implementation from lib/efi_loader/efi_setup.c was used, which led to "data abort" just before booting Linux via tftp, in efi_dp_from_file() -> path_to_uefi() -> utf16_put() . The problem is triggerd by c7c0ca37673 ("efi_loader: fix efi_dp_from_file()") . Adding the wrapper fixes the problem. Fixes: d47a774680d ("arm: arm11: allow unaligned memory access") Signed-off-by: Marek Vasut

ARM: armv7: Add C wrapper for allow_unaligned()

2023-07-01T15:29:15Z

Rename current assembler implementation of allow_unaligned() to v7_arch_cp15_allow_unaligned() and add it into armv7.h header, then add C wrapper of allow_unaligned(). This fixes misbehavior when linking U-Boot on ARMv7a i.MX6Q, where the CPU specific allow_unaligned() implementation was ignored and instead the __weak allow_unaligned() implementation from lib/efi_loader/efi_setup.c was used, which led to "data abort" just before booting Linux via tftp, in efi_dp_from_file() -> path_to_uefi() -> utf16_put() . The problem is triggerd by c7c0ca37673 ("efi_loader: fix efi_dp_from_file()") . Adding the wrapper fixes the problem. Fixes: 78f90aaeecc ("arm: armv7: allow unaligned memory access") Signed-off-by: Marek Vasut

ARM: armv7: add non-SPL enable for Cortex SMPEN

2023-05-13T02:01:30Z

Commit 2564fce7eea3 ("sunxi: move Cortex SMPEN setting into start.S") added SPL_ARMV7_SET_CORTEX_SMPEN to enable setting SMP bit. For platforms not using SPL boot, add the corresponding non-SPL config, so that CONFIG_IS_ENABLED(ARMV7_SET_CORTEX_SMPEN) works as expected. Signed-off-by: Ralph Siemsen Reviewed-by: Marek Vasut

armv8: fsl-layerscape: check for crypto node first in fdt_fixup_remove_jr

2023-05-05T01:46:03Z

This a problem I found while updating the U-Boot fsl-ls1088a.dtsi to match the Linux version. fdt_fixup_remove_jr did not check whether there was a "crypto" alias in the device tree before calling more fdt_* functions, which resulted in a crash. Fixes: a797f274 ("ARMv8/sec_firmware : Update chosen/kaslr-seed with random number") Signed-off-by: Mathew McBride Reviewed-by: Peng Fan Signed-off-by: Peng Fan Reviewed-by: Ioana Ciornei Tested-by: Ioana Ciornei # on LS1088A-RDB

armv7: Use isb/dsb directly in start.S

2023-04-25T19:31:27Z

Toolchains which do not directly support using "isb" and "dsb" directly are no longer functionally supported in U-Boot. Furthermore, clang has for a long time warned about using the alternate form that we were. Update the code. Signed-off-by: Tom Rini Reviewed-by: Simon Glass

arm: Centralize fixed register logic

2023-04-25T19:31:27Z

When building for ARM64, we need to pass -ffixed-x18 and otherwise pass -ffixed-r9. Rather than having this logic in two places, we can do this once in arch/arm/config.mk. Further, while gcc will ignore being passed both -ffixed-r9 and -ffixed-x18 and simply use -ffixed-x18, clang will note that -ffixed-r9 is not used. Remove this duplication to also remove the warning. Signed-off-by: Tom Rini Reviewed-by: Simon Glass

armv8: enable HAFDBS for other ELx when FEAT_HAFDBS is present

2023-04-25T19:31:27Z

u-boot could be run at EL1/EL2/EL3. so we set it as same as EL1 does. otherwise it will hang when enable mmu, that is what we encounter in our SOC. Signed-off-by: meitao [ Paul: pick from the Android tree. Rebase to the upstream ] Signed-off-by: Ying-Chun Liu (PaulLiu) Cc: Tom Rini Link: https://android.googlesource.com/platform/external/u-boot/+/3bf38943aeab4700c2319bff2a1477d99c6afd2f

arm64: Use level-2 for largest block mappings when FEAT_HAFDBS is present

2023-04-25T19:31:27Z

In order to make invalidation by VA more efficient, set the largest block mapping to 2MB, mapping it onto level-2. This has no material impact on u-boot's runtime performance, and allows a huge speedup when cleaning the cache. Signed-off-by: Marc Zyngier [ Paul: pick from the Android tree. Rebase to the upstream ] Signed-off-by: Ying-Chun Liu (PaulLiu) Cc: Tom Rini Link: https://android.googlesource.com/platform/external/u-boot/+/417a73581a72ff6d6ee4b0938117b8a23e32f7e8

arm64: Use FEAT_HAFDBS to track dirty pages when available

2023-04-25T19:31:27Z

Some recent arm64 cores have a facility that allows the page table walker to track the dirty state of a page. This makes it really efficient to perform CMOs by VA as we only need to look at dirty pages. Signed-off-by: Marc Zyngier [ Paul: pick from the Android tree. Rebase to the upstream ] Signed-off-by: Ying-Chun Liu (PaulLiu) Cc: Tom Rini Link: https://android.googlesource.com/platform/external/u-boot/+/3c433724e6f830a6b2edd5ec3d4a504794887263