In arch/arm/mach-mvebu/dram.c we always include axp's xor.h for common XOR definitions, regardless whether we compile for axp or a38x.
But the declaration of this function has a different signature in axp's xor.h from the one used in a38x' implementation - one parameter is u64 instead of u32. This can result in wrong argument's being passed to that function on a38x with no one the wiser.
I discovered this when building U-Boot for Turris Omnia with LTO. The compiler complains about the different signatures being thrown into the same linking process:
axp/xor.h:67:5: warning: type of ‘mv_xor_mem_init’ does not match original declaration [-Wlto-type-mismatch] 67 | int mv_xor_mem_init(u32 chan, u32 start_ptr, u32 block_size, | ^ a38x/xor.c:165:5: note: type mismatch in parameter 3 165 | int mv_xor_mem_init(u32 chan, u32 start_ptr, unsigned long long | ^ a38x/xor.c:165:5: note: type ‘long long unsigned int’ should match type ‘u32’
Fix this by changing the type of the block_size argument in the axp's implementation and header file to the one used in a38x (and upstream mv-ddr-marvell).
Signed-off-by: Marek Behún marek.behun@nic.cz --- drivers/ddr/marvell/axp/xor.c | 4 ++-- drivers/ddr/marvell/axp/xor.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/ddr/marvell/axp/xor.c b/drivers/ddr/marvell/axp/xor.c index 17bfe6a7bf..76aea96682 100644 --- a/drivers/ddr/marvell/axp/xor.c +++ b/drivers/ddr/marvell/axp/xor.c @@ -152,8 +152,8 @@ static int mv_xor_ctrl_set(u32 chan, u32 xor_ctrl) return MV_OK; }
-int mv_xor_mem_init(u32 chan, u32 start_ptr, u32 block_size, u32 init_val_high, - u32 init_val_low) +int mv_xor_mem_init(u32 chan, u32 start_ptr, unsigned long long block_size, + u32 init_val_high, u32 init_val_low) { u32 tmp;
diff --git a/drivers/ddr/marvell/axp/xor.h b/drivers/ddr/marvell/axp/xor.h index 97d1056432..a7c6ae840c 100644 --- a/drivers/ddr/marvell/axp/xor.h +++ b/drivers/ddr/marvell/axp/xor.h @@ -64,7 +64,7 @@ int mv_xor_state_get(u32 chan); void mv_sys_xor_init(MV_DRAM_INFO *dram_info); void mv_sys_xor_finish(void); int mv_xor_transfer(u32 chan, int xor_type, u32 xor_chain_ptr); -int mv_xor_mem_init(u32 chan, u32 start_ptr, u32 block_size, u32 init_val_high, - u32 init_val_low); +int mv_xor_mem_init(u32 chan, u32 start_ptr, unsigned long long block_size, + u32 init_val_high, u32 init_val_low);
#endif /* __XOR_H */