linux-dev/arch/arc/configs/hsdk_defconfig, branch master

arc: update config files

2022-10-17T23:32:12Z

Clean up config files by: - removing configs that were deleted in the past - removing configs not in tree and without recently pending patches - adding new configs that are replacements for old configs in the file For some detailed information, see Link. Link: https://lore.kernel.org/kernel-janitors/20220929090645.1389-1-lukas.bulwahn@gmail.com/ Signed-off-by: Lukas Bulwahn Signed-off-by: Vineet Gupta

kbuild: drop support for CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3

2022-07-27T12:17:59Z

The difference in most compilers between `-O3` and `-O2` is mostly down to whether loops with statically determinable trip counts are fully unrolled vs unrolled to a multiple of SIMD width. This patch is effectively a revert of commit 15f5db60a137 ("kbuild,arc: add CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 for ARC") without re-adding ARCH_CFLAGS Ever since commit cfdbc2e16e65 ("ARC: Build system: Makefiles, Kconfig, Linker script") ARC has been built with -O3, though the reason for doing so was not specified in inline comments or the commit message. This commit does not re-add -O3 to arch/arc/Makefile. Folks looking to experiment with `-O3` (or any compiler flag for that matter) may pass them along to the command line invocation of make: $ make KCFLAGS=-O3 Code that looks to re-add an explicit Kconfig option for `-O3` should provide: 1. A rigorous and reproducible performance profile of a reasonable userspace workload that demonstrates a hot loop in the kernel that would benefit from `-O3` over `-O2`. 2. Disassembly of said loop body before and after. 3. Provides stats on terms of increase in file size. Link: https://lore.kernel.org/linux-kbuild/CA+55aFz2sNBbZyg-_i8_Ldr2e8o9dfvdSfHHuRzVtP2VMAUWPg@mail.gmail.com/ Signed-off-by: Nick Desaulniers Signed-off-by: Masahiro Yamada

ARC: [plat-hsdk]: fix USB regression

2020-04-12T23:17:00Z

As of today the CONFIG_USB isn't explicitly present in HSDK defconfig as it is implicitly forcibly enabled by UDL driver which selects CONFIG_USB in its kconfig. The commit 5d50bd440bc2 ("drm/udl: Make udl driver depend on CONFIG_USB") reverse the dependencies between UDL and USB so UDL now depends on CONFIG_USB and not selects it. This introduces regression for ARC HSDK board as HSDK defconfig wasn't adjusted and now it misses USB support due to lack of CONFIG_USB enabled. Fix that. Cc: # 5.6.x Fixes: 5d50bd440bc2 ("drm/udl: Make udl driver depend on CONFIG_USB") Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta

ARC: [plat-hsdk]: Enable on-boardi SPI ADC IC

2019-10-22T16:58:29Z

HSDK board has adc108s102 SPI ADC IC installed, enable it. Acked-by: Alexey Brodkin Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta

ARC: [plat-hsdk]: Enable on-board SPI NOR flash IC

2019-10-22T16:58:29Z

HSDK board has sst26wf016b SPI NOR flash IC installed, enable it. Acked-by: Alexey Brodkin Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta

kbuild,arc: add CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 for ARC

2019-09-04T01:01:17Z

arch/arc/Makefile overrides -O2 with -O3. This is the only user of ARCH_CFLAGS. There is no user of ARCH_CPPFLAGS or ARCH_AFLAGS. My plan is to remove ARCH_{CPP,A,C}FLAGS after refactoring the ARC Makefile. Currently, ARC has no way to enable -Wmaybe-uninitialized because both -O3 and -Os disable it. Enabling it will be useful for compile-testing. This commit allows allmodconfig (, which defaults to -O2) to enable it. Add CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3=y to all the defconfig files in arch/arc/configs/ in order to keep the current config settings. Signed-off-by: Masahiro Yamada Acked-by: Vineet Gupta

ARC: [plat-hsdk]: Enable AXI DW DMAC in defconfig

2019-07-08T08:24:47Z

For some reasons my previous patch "Enable AXI DW DMAC support" was applied only partially (only device tree part). So enable AXI DW DMAC in HSDK defconfig to be able to use it in verification flow. Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta

ARC: [plat-hsdk]: enable DW SPI controller

2019-07-08T08:24:46Z

HSDK SoC has DW SPI controller. Enable it in preparation of enabling on-board SPI peripherals. Acked-by: Alexey Brodkin Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta

ARC: [plat-hsdk]: Add support of Vivante GPU

2019-05-28T17:08:16Z

HSDK board has built-in Vivante GPU IP which works perfectly fine with Etnaviv driver, so let's use it. Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta

ARC: [plat-hsdk]: enable creg-gpio controller

2019-05-28T17:06:42Z

HSDK SOC has CREG GPIO controller which can be used to control SPI chip select lines. Enable it in preparation of enabling SPI peripherals. Acked-by: Alexey Brodkin Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta