Re: [PATCH 12/14] ARM: add CONFIG_PHYS_OFFSET default values
From: Nicolas Pitre <nico@fluxnic.net>
Date: 2021-09-28 16:02:59
Also in:
lkml, llvm
On Tue, 28 Sep 2021, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@arndb.de> For platforms that are not yet converted to ARCH_MULTIPLATFORM, we can disable CONFIG_ARM_PATCH_PHYS_VIRT, which in turn requires setting a correct address here. As we actualy know what all the values are supposed to be based on the old mach/memory.h header file contents (from git history), we can just add them here. This also solves a problem in Kconfig where 'make randconfig' fails to continue if no number is selected for a 'hex' option. Users can still override the number at configuration time, e.g. when the memory visible to the kernel starts at a nonstandard address on some machine, but it should no longer be required now. I originally posted this back in 2016, but the problem still persists. The patch has gotten much simpler though, as almost all platforms rely on ARM_PATCH_PHYS_VIRT now. Acked-by: Nicolas Pitre <redacted>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
quoted hunk ↗ jump to hunk
Link: https://lore.kernel.org/linux-arm-kernel/1455804123-2526139-5-git-send-email-arnd@arndb.de/ (local) Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- arch/arm/Kconfig | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 12a0bd4b315d..0d4f3e2d50ad 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig@@ -264,10 +264,12 @@ config PHYS_OFFSET hex "Physical address of main memory" if MMU depends on !ARM_PATCH_PHYS_VIRT default DRAM_BASE if !MMU - default 0x00000000 if ARCH_FOOTBRIDGE + default 0x00000000 if ARCH_FOOTBRIDGE || ARCH_IXP4XX default 0x10000000 if ARCH_OMAP1 || ARCH_RPC - default 0x20000000 if ARCH_S5PV210 - default 0xc0000000 if ARCH_SA1100 + default 0x30000000 if ARCH_S3C24XX + default 0xa0000000 if ARCH_IOP32X || ARCH_PXA + default 0xc0000000 if ARCH_EP93XX || ARCH_SA1100 + default 0 help Please provide the physical address corresponding to the location of main memory in your system.-- 2.29.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
_______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel