u-boot.git/arch/arm/cpu, branch v2024.10

config: Use CONFIG_SYS_BIG_ENDIAN in code whenever possible

2024-07-31T17:18:37Z

So CONFIG_SYS_BIG_ENDIAN is our cross architecture option for selecting machine endian, while the old CONFIG_CPU_BIG_ENDIAN is defined by Arc only. Use it whenever possible to ensure big endian code path is enabled for all possible big endian machines. Signed-off-by: Jiaxun Yang

arm: cpu: Remove duplicate newlines

2024-07-15T18:12:16Z

Drop all duplicate newlines. No functional change. Signed-off-by: Marek Vasut

Merge patch series "m68k: Implement a default flush_dcache_all"

2024-07-03T20:42:11Z

Tom Rini says: Prior to this series we had some de-facto required cache functions that were either unimplemented on some architectures or differently named. This would lead in some cases to having multiple "weak" functions available as well. Rework things so that an architecture must provide these functions and it is up to that architecture if a "weak" default function makes sense, or not.

arm64: add software pagetable walker

2024-06-25T23:22:30Z

Add a basic software implementation of the ARM64 pagetable walker. This can be used for debugging U-Boot's pagetable, as well as dumping the pagetable from the previous bootloader stage if it used one (by reading out the ttbr address). One can either call dump_pagetable() to print the pagetable to the console with the default formatter, or implement their own pagetable handler using walke_pagetable() with a custom pte_walker_cb_t callback. All of the added code is discarded when unused, hence there is no need to add an additional Kconfig option for this. Signed-off-by: Caleb Connolly

arm: implement invalidate_icache_all on ARM11

2024-06-19T19:10:23Z

In EFI sub-system we rely on invalidate_icache_all() to invalidate the instruction cache after loading binaries. Add the missing implementation on ARM1136, ARM1176. Signed-off-by: Heinrich Schuchardt

arm: move _end to linker symbols

2024-06-07T22:20:29Z

commit 6e2228fb052b ("Merge patch series "Clean up arm linker scripts") was cleaning up linker scripts for armv7 and v8 but was leaving _end and __secure_stack_start/end. commit d0b5d9da5de2 ("arm: make _end compiler-generated") was moving _end to be compiler generated. _end is defined as c variable in its own section to force the compiler emit relative a reference. However, defining those in the linker script will do the same thing since [0]. So let's remove the special sections from the linker scripts, the variable definitions from sections.c and define them as a symbols. It's worth noting that _image_binary_end symbol is now redundant and can be removed in the future. - SPL The .end section has been removed from the new binary [ 5] .end PROGBITS 00000000fffdf488 000000000002f488 0 0000000000000000 0000000000000000 0 1 [0000000000000003]: WRITE, ALLOC $~ bloat-o-meter kria_old/spl/u-boot-spl krina_new/spl/u-boot-spl add/remove: 0/0 grow/shrink: 0/0 up/down: 0/0 (0) Function old new delta Total: Before=115980, After=115980, chg +0.00% $~ readelf -sW kria_old/u-boot kria_new/u-boot | grep -w _end 12047: 000000000813a0f0 0 OBJECT GLOBAL DEFAULT 11 _end 12047: 000000000813a118 0 NOTYPE GLOBAL DEFAULT 11 _end $~ readelf -sW kria_old/spl/u-boot-spl kria_new/spl/u-boot-spl | grep -w _end 1605: 00000000fffdf488 0 OBJECT GLOBAL DEFAULT 5 _end 1603: 00000000fffdf498 0 NOTYPE GLOBAL DEFAULT 4 _end $~ readelf -sW old/u-boot new/u-boot | grep -w _end 8847: 0000000000103710 0 OBJECT GLOBAL DEFAULT 11 _end 8847: 0000000000103738 0 NOTYPE GLOBAL DEFAULT 11 _end $~ readelf -sW old_v7/u-boot new_v7/u-boot | grep -w _end 10638: 000da824 0 OBJECT GLOBAL DEFAULT 10 _end 10637: 000da84c 0 NOTYPE GLOBAL DEFAULT 10 _end - For both QEMU instances $~ bloat-o-meter old/u-boot new/u-boot add/remove: 0/0 grow/shrink: 1/0 up/down: 20/0 (20) Function old new delta version_string 50 70 +20 Total: Before=656915, After=656935, chg +0.00% [0] binutils commit 6b3b0ab89663 ("Make linker assigned symbol dynamic only for shared object") Signed-off-by: Ilias Apalodimas

Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"

2024-05-20T19:35:03Z

As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman Signed-off-by: Tom Rini

Merge tag 'v2024.07-rc3' into next

2024-05-20T16:16:33Z

Prepare v2024.07-rc3

Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""

2024-05-19T14:16:36Z

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman Signed-off-by: Tom Rini

armv8: generic_timer: Use event stream for udelay

2024-05-13T22:51:14Z

Polling cntpct_el0 in a tight loop for delays is inefficient. This is particularly apparent on Arm FVPs, which do not simulate real time, meaning that a 1s sleep can take a couple of orders of magnitude longer to execute in wall time. If running at EL2 or above (where CNTHCTL_EL2 is available), enable the cntpct_el0 event stream temporarily and use wfe to implement the delay more efficiently. The event period is chosen as a trade-off between efficiency and the fact that Arm FVPs do not typically simulate real time. This is only implemented for Armv8 boards, where an architectural timer exists, and only enabled by default for the ARCH_VEXPRESS64 board family. Signed-off-by: Peter Hoyes Reviewed-by: Andre Przywara