xtensa: rework {CONFIG,PLATFORM}_DEFAULT_MEM_START

Drop PLATFORM_DEFAULT_MEM_START from the platform/hardware.h headers.
Provide definition of CONFIG_DEFAULT_MEM_START always, allow changing it
only in noMMU configurations when PLATFORM_WANT_DEFAULT_MEM is selected.
Change prompt and description so that it's clear that it controls
PAGE_OFFSET and PHYS_OFFSET.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

1 files changed, 7 insertions, 8 deletions

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 787515c6770e..e82ed7216eca 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -530,14 +530,13 @@ config PLATFORM_WANT_DEFAULT_MEM
         def_bool n
 
 config DEFAULT_MEM_START
-        hex "Physical address of the default memory area start"
-        depends on PLATFORM_WANT_DEFAULT_MEM
-        default 0x00000000 if MMU
-        default 0x60000000 if !MMU
-        help
-          This is the base address of the default memory area.
-          Default memory area has platform-specific meaning, it may be used
-          for e.g. early cache initialization.
+        hex
+        prompt "PAGE_OFFSET/PHYS_OFFSET" if !MMU && PLATFORM_WANT_DEFAULT_MEM
+        default 0x60000000 if PLATFORM_WANT_DEFAULT_MEM
+        default 0x00000000
+        help
+          This is the base address used for both PAGE_OFFSET and PHYS_OFFSET
+          in noMMU configurations.
 
           If unsure, leave the default value here.