[U-Boot] [PATCH v5 11/27] ARM: tegra: Fix save_boot_params() prototype

Thierry Reding thierry.reding at gmail.com
Mon Apr 15 09:32:23 UTC 2019

From: Thierry Reding <treding at nvidia.com>

The save_boot_params() function takes as its first four arguments the
first four registers. On 32-bit ARM these are r0, r1, r2 and r3, all of
which are 32 bits wide. However, on 64-bit ARM thene registers are x0,
x1, x2 and x3, all of which are 64 bits wide. In order to allow reusing
the save_boot_params() implementation on 64-bit ARM, change it to take
unsigned long parameters rather than the fixed size 32-bit integers.
This ensures that the correct values are passed.

Signed-off-by: Thierry Reding <treding at nvidia.com>
 arch/arm/mach-tegra/board.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c
index b65bdde5a78d..59d2f347485d 100644
--- a/arch/arm/mach-tegra/board.c
+++ b/arch/arm/mach-tegra/board.c
@@ -42,7 +42,8 @@ enum {
 static bool from_spl __attribute__ ((section(".data")));
-void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3)
+void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2,
+		      unsigned long r3)
 	from_spl = r0 != UBOOT_NOT_LOADED_FROM_SPL;

More information about the U-Boot mailing list