Hi Tom Thanks for your understanding. but this patch is an incomplete patch. After I applied this patch I had another error.
arch/arm/cpu/armv8/cache_v8.c:773:2: error: #error Please describe your MMU layout in CONFIG_SYS_MEM_MAP and enable dcache. 773 | #error Please describe your MMU layout in CONFIG_SYS_MEM_MAP and enable dcache. This error is the same as that link. Best regards, Jim On Thu, Sep 28, 2023 at 8:23 PM Tom Rini <tr...@konsulko.com> wrote: > > On Thu, Sep 28, 2023 at 08:49:23AM +0800, Jim Liu wrote: > > Hi Tom > > > > Thanks for the quick review. > > > > if we set the CONFIG_SYS_DCACHE_OFF the armv8 will build error. > > So we added a workaround for our bmc uboot. > > > > the error message as below: > > > > CONFIG_SYS_DCACHE_OFF can't be enabled on armv8, or the following > > build error would happen. > > > > arch/arm/cpu/armv8/cpu.o: in function `cleanup_before_linux': > > arch/arm/cpu/armv8/cpu.c:60: undefined reference to `icache_disable' > > arch/arm/cpu/armv8/cpu.c:68: undefined reference to `dcache_disable' > > arch/arm/cpu/armv8/cpu.c:69: undefined reference to `invalidate_dcache_all' > > OK, so you need > https://patchwork.ozlabs.org/project/uboot/patch/20230811054228.3721455-1-bhupesh.sha...@linaro.org/ > to be applied, as-is, yes? Thanks! > > > > > Best regards, > > Jim > > > > On Tue, Sep 26, 2023 at 9:48 PM Tom Rini <tr...@konsulko.com> wrote: > > > > > > On Tue, Sep 26, 2023 at 04:56:50PM +0800, Jim Liu wrote: > > > > > > > do not enable dcache by setting CONFIG_SYS_NPCM_DCACHE_OFF=y > > > > > > > > Signed-off-by: Jim Liu <jjl...@nuvoton.com> > > > > --- > > > > arch/arm/mach-npcm/npcm8xx/Kconfig | 4 ++++ > > > > arch/arm/mach-npcm/npcm8xx/cpu.c | 12 +++++++++++- > > > > 2 files changed, 15 insertions(+), 1 deletion(-) > > > > > > > > diff --git a/arch/arm/mach-npcm/npcm8xx/Kconfig > > > > b/arch/arm/mach-npcm/npcm8xx/Kconfig > > > > index 5f4a0506dc..163e7e7d48 100644 > > > > --- a/arch/arm/mach-npcm/npcm8xx/Kconfig > > > > +++ b/arch/arm/mach-npcm/npcm8xx/Kconfig > > > > @@ -6,6 +6,10 @@ config SYS_CPU > > > > config SYS_SOC > > > > default "npcm8xx" > > > > > > > > +config SYS_NPCM_DCACHE_OFF > > > > + bool "Do not enable dcache" > > > > + default n > > > > + > > > > config TARGET_ARBEL_EVB > > > > bool "Arbel Evaluation Board" > > > > help > > > > > > Why do we need a new Kconfig option here on top of the existing generic > > > ones to control cache? > > > > > > -- > > > Tom > > -- > Tom
