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| author | Arnd Bergmann <arnd@arndb.de> | 2021-10-18 16:30:39 +0200 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-10-25 14:12:35 +0200 |
| commit | c6e77bb61a557dcf6f7440497634a5dc7ada0b3f (patch) | |
| tree | be985967b4d1b00bfa0818bacb398070271dee82 /arch | |
| parent | ARM: 9142/1: kasan: work around LPAE build warning (diff) | |
| download | linux-c6e77bb61a557dcf6f7440497634a5dc7ada0b3f.tar.xz linux-c6e77bb61a557dcf6f7440497634a5dc7ada0b3f.zip | |
ARM: 9143/1: add CONFIG_PHYS_OFFSET default values
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.
Link: https://lore.kernel.org/linux-arm-kernel/1455804123-2526139-5-git-send-email-arnd@arndb.de/
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index fc196421b2ce..680920f78fcb 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. |