[PATCH 3/6] arch: Define ARCH_HAS_PHYS_INITRD for ARM and Unicore32

From: Florian Fainelli
Date: Mon Oct 29 2018 - 19:52:44 EST


Make ARM and Unicore32 select ARCH_HAS_PHYS_INITRD meaning that they do
define phys_initrd_start/phys_initrd_size and make use of it.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
arch/Kconfig | 7 +++++++
arch/arm/Kconfig | 1 +
arch/unicore32/Kconfig | 1 +
3 files changed, 9 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index 9d329608913e..0926f8291782 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -865,6 +865,13 @@ config HAVE_ARCH_PREL32_RELOCATIONS
architectures, and don't require runtime relocation on relocatable
kernels.

+config ARCH_HAS_PHYS_INITRD
+ bool
+ help
+ An architecture selects this when it needs to act on the physical
+ address of the initial ramdisk and allow generic code such as
+ FDT to populate that address.
+
source "kernel/gcov/Kconfig"

source "scripts/gcc-plugins/Kconfig"
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e8cd55a5b04c..b87c40701b0e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -11,6 +11,7 @@ config ARM
select ARCH_HAS_KCOV
select ARCH_HAS_MEMBARRIER_SYNC_CORE
select ARCH_HAS_PTE_SPECIAL if ARM_LPAE
+ select ARCH_HAS_PHYS_INITRD
select ARCH_HAS_PHYS_TO_DMA
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0c5111b206bd..28a66ae61dcf 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -2,6 +2,7 @@
config UNICORE32
def_bool y
select ARCH_HAS_DEVMEM_IS_ALLOWED
+ select ARCH_HAS_PHYS_INITRD
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select DMA_DIRECT_OPS
--
2.17.1