u-boot.git/arch/arm/lib/cache.c, branch v2024.01

arm64: Initialize TLB memory if CMO_BY_VA_ONLY

2023-03-06T22:03:55Z

Memory used to hold the page tables is allocated from the top of RAM with no prior initialization and could therefore hold invalid data. As invalidate_dcache_all() will be called before the MMU has been initialized and as that function relies indirectly on the page tables when using CMO_BY_VA_ONLY, these must be in a valid state from their allocation. Signed-off-by: Pierre-Clément Tosi [ Paul: pick from the Android tree. Fix checkpatch warnings, and rebased to the upstream. ] Signed-off-by: Ying-Chun Liu (PaulLiu) Cc: Tom Rini Link: https://android.googlesource.com/platform/external/u-boot/+/e3ceef4230b772186c6853cace4a676a407e6ab7

global: Move remaining CONFIG_SYS_* to CFG_SYS_*

2022-12-05T21:06:08Z

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini Reviewed-by: Simon Glass

common: Drop asm/global_data.h from common header

2021-02-02T20:33:42Z

Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include at all, so remove that include. Signed-off-by: Simon Glass Signed-off-by: Tom Rini

common: board_r: Drop initr_noncached wrapper

2021-01-15T19:36:12Z

Add a return value to noncached_init and use it directly in the post-relocation init sequence, rather than using a wrapper stub. Signed-off-by: Ovidiu Panait Reviewed-by: Simon Glass

common: Drop log.h from common header

2020-05-19T01:19:18Z

Move this header out of the common header. Signed-off-by: Simon Glass

common: Drop net.h from common header

2020-05-18T21:33:31Z

Move this header out of the common header. Network support is used in quite a few places but it still does not warrant blanket inclusion. Note that this net.h header itself has quite a lot in it. It could be split into the driver-mode support, functions, structures, checksumming, etc. Signed-off-by: Simon Glass

cmd: cache: Fix non-cached memory cachability

2020-05-07T13:01:42Z

If dcache is switched OFF to ON state and if non-cached memory is used, this non-cached memory must be re-declared as uncached to mmu each time dcache is set ON. Introduce noncached_set_region() to set this non-cached region's mmu settings. Let architecture override it by defining it as a weak function. For ARM architecture, noncached_set_region() defines all noncached region as non-cacheable. Issue found on STM32MP1 platform using dwc_eth_qos ethernet driver, when going from dcache OFF to dcache ON state, ethernet driver issued TX timeout errors when performing dhcp or ping. It can be reproduced with the following sequence: dhcp while true ; do ping 192.168.1.300 ; dcache off ; ping 192.168.1.300 ; dcache on ; done Signed-off-by: Patrice Chotard Cc: Marek Vasut Cc: Joe Hershberger Cc: Ramon Fried Cc: Stephen Warren Reviewed-by: Marek Vasut

common/board_f: Make reserve_mmu generic

2020-04-24T19:17:14Z

Introduce arch_reserve_mmu to allow for architecture-specific reserve_mmu routines. Also, define a weak nop stub for it. Signed-off-by: Ovidiu Panait Reviewed-by: Simon Glass

arm: asm/cache.c: Introduce arm_reserve_mmu

2020-04-24T19:17:14Z

As a preparation for turning reserve_mmu into an arch-specific variant, introduce arm_reserve_mmu on ARM. It implements the default routine for reserving memory for MMU TLB and needs to be weakly defined in order to allow for machines to override it. Without this decoupling, after introducing arch_reserve_mmu, there would be two weak definitions for it, one in common/board_f.c and one in arch/arm/lib/cache.c. Signed-off-by: Ovidiu Panait Reviewed-by: Simon Glass

common/board_f: Move arm-specific reserve_mmu to arch/arm/lib/cache.c

2020-04-24T19:17:14Z

Move the ARM-specific reserve_mmu definition from common/board_f.c to arch/arm/lib/cache.c. Signed-off-by: Ovidiu Panait Reviewed-by: Simon Glass