[U-Boot] [PATCH] arm: am33xx: Make pin multiplexing functions optional

[Felix Brack <fb@ltec.ch>]

Boards using the single-register-pin-controller can  configure all
pins by means of the device tree. This renders the implementation of
the two functions set_uart_mux_conf and set_mux_conf_regs obsolete.
Using the weak attribute for these two function declarations allows
the omission of the respective definitions.

Signed-off-by: Felix Brack <fb@ltec.ch>
---

 arch/arm/include/asm/arch-am33xx/sys_proto.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h
index 4e78aaf..e31c25c 100644
--- a/arch/arm/include/asm/arch-am33xx/sys_proto.h
+++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h
@@ -31,8 +31,8 @@ void enable_gpmc_cs_config(const u32 *gpmc_config, const struct gpmc_cs *cs, u32
 			u32 size);
 int omap_nand_switch_ecc(uint32_t, uint32_t);
 
-void set_uart_mux_conf(void);
-void set_mux_conf_regs(void);
+__weak void set_uart_mux_conf(void);
+__weak void set_mux_conf_regs(void);
 void sdram_init(void);
 u32 wait_on_value(u32, u32, void *, u32);
 #ifdef CONFIG_NOR_BOOT
-- 
2.7.4