[PATCH v2 1/2] armv8: Fix get_sctlr() return type

[Sam Protsenko]

SCTLR_EL2 is a 64-bit register [1]. Return its value as long (64 bit)
instead of int (32 bit) in get_sctlr() to make sure it's not trimmed.

[1] https://developer.arm.com/documentation/ddi0595/2021-06/AArch64-Registers/SCTLR-EL2--System-Control-Register--EL2-?lang=en

Fixes: 0ae7653128c8 ("arm64: core support")
Suggested-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
Signed-off-by: Sam Protsenko <semen.protsenko at linaro.org>
---
Changes in v2:
  - None (this patch was introduced in v2)

 arch/arm/cpu/armv8/cache_v8.c | 2 +-
 arch/arm/include/asm/system.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c
index e6be6359c5d9..5d6953ffedd1 100644
--- a/arch/arm/cpu/armv8/cache_v8.c
+++ b/arch/arm/cpu/armv8/cache_v8.c
@@ -825,7 +825,7 @@ void dcache_enable(void)
 
 void dcache_disable(void)
 {
-	uint32_t sctlr;
+	unsigned long sctlr;
 
 	sctlr = get_sctlr();
 
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 52f6c9b934d7..dbf9ab43e280 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -171,7 +171,7 @@ static inline unsigned int current_el(void)
 	return 3 & (el >> 2);
 }
 
-static inline unsigned int get_sctlr(void)
+static inline unsigned long get_sctlr(void)
 {
 	unsigned int el;
 	unsigned long val;
-- 
2.39.5