[PATCH v2] loongarch: Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled

[Jiaxun Yang]

When ARCH_IOREMAP is enabled, we are using always accessible DMW
for ioremap. It makes no sense to create a dedicated mapping for
earlycon given that we can access the region via DMW.

Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is selected. This can
ease debugging for early mapping issues.

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
---
Changes in v2:
- Drop changes to fixedmap.h
- Link to v1: https://lore.kernel.org/r/20250102-la-earlycon-fixed-map-v1-1-23fe3a6681c4@xxxxxxxxxxx
---
 arch/loongarch/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 1c4d13aa677e2e04b9791882fba7523f93d6a69d..ad8a8cf75343799ea626be52f521fa75e7cbe07b 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -246,7 +246,7 @@ config MACH_LOONGSON64
 	def_bool 64BIT
 
 config FIX_EARLYCON_MEM
-	def_bool y
+	def_bool !ARCH_IOREMAP
 
 config PGTABLE_2LEVEL
 	bool

---
base-commit: 8155b4ef3466f0e289e8fcc9e6e62f3f4dceeac2
change-id: 20250102-la-earlycon-fixed-map-d6a48bd5b831

Best regards,
-- 
Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>