u-boot.git/arch/powerpc/lib, branch v2024.01

powerpc: Fix flush_cache() speed regression

2023-07-14T19:21:08Z

Flushing kernel image after decompression was taking 113 milliseconds with U-boot 2022.10. With U-boot 2023.01 and 2023.04, flushing the same amount of memory takes approx 1.5 seconds. With U-boot 2023.07-rc6, it takes 6.5 seconds. powerpc flush_cache() function used to call WATCHDOG_RESET() after flushing every cacheline. At that time WATCHDOG_RESET() was light so the operation was almost seamless. But commit 29caf9305b6 ("cyclic: Use schedule() instead of WATCHDOG_RESET()") replaced WATCHDOG_RESET() by schedule() and that started to hurt with U-boot 2022.10. And in U-boot 2023.07-rc6 that's even worse after commit 26e8ebcd7cb ("watchdog: mpc8xxx: Make it generic"). In the meantime commit 729c1fe656 ("powerpc: introduce CONFIG_CACHE_FLUSH_WATCHDOG_THRESHOLD") gives us the opportinity to only call schedule() every given chunk of data instead of every cacheline. As explained in that commit there is no point in pinging the watchdog after every cacheline flush, so lets define a sensible default chunk size of 4k which matches to size of a page on most powerpc platforms. With that new default threshold, the culprit flushing performed after kernel image decompression now takes 85 milliseconds on a powerpc 8xx. Fixes: 29caf9305b6 ("cyclic: Use schedule() instead of WATCHDOG_RESET()") Signed-off-by: Christophe Leroy

Correct SPL uses of LMB

2023-02-10T12:41:39Z

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

ppc: Drop bat_rw

2023-02-07T19:33:47Z

Drop this unused driver. Signed-off-by: Simon Glass

global: Finish CONFIG -> CFG migration

2023-01-20T17:27:24Z

At this point, the remaining places where we have a symbol that is defined as CONFIG_... are in fairly odd locations. While as much dead code has been removed as possible, some of these locations are simply less obvious at first. In other cases, this code is used, but was defined in such a way as to have been missed by earlier checks. Perform a rename of all such remaining symbols to be CFG_... rather than CONFIG_... Signed-off-by: Tom Rini Reviewed-by: Simon Glass

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

global: Move remaining CONFIG_SYS_SDRAM_* to CFG_SYS_SDRAM_*

2022-12-05T21:06:07Z

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM 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

treewide: Remove the unnecessary space before semicolon

2022-11-02T17:58:17Z

%s/return ;/return; Signed-off-by: Bin Meng

common/board_f: introduce arch_setup_dest_addr()

2022-10-07T01:05:17Z

In order to move ppc-specific code out of setup_dest_addr(), provide an arch-specific variant arch_setup_dest_addr(), that can be used by architecture code to fix up the initial reloc address. It is called at the end of setup_dest_addr() initcall and the default implementation is a nop stub. Reviewed-by: Simon Glass Signed-off-by: Ovidiu Panait

treewide: Drop bootm_headers_t typedef

2022-09-29T20:07:57Z

This is not needed and we should avoid typedefs. Use the struct instead. Signed-off-by: Simon Glass

watchdog: Get rid of ASSEMBLY hacks

2022-09-18T08:26:39Z

Only one occurance of WATCHDOG_RESET is left in one assembler file. This patch changes this occurance to a direct call to watchdog_reset and then removes all the ASSEMBLY ifdef'ery in watchdog.h, as it's not needed any more to clean this mess a bit up. Signed-off-by: Stefan Roese Tested-by: Tom Rini [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]