blackfin: make name_to_gpio be a weak symbol
This required moving it into a C file from the header.
The only user of a non-default name_to_gpio is blackfin, therefore build tested
with the blackfin bct-brettl2 build, which is one I picked at random. Also
tested with a build for the ARM tec board which uses the default/fallback
implementation. Inspection with objdump shows that both have done the right
thing.
This change was requested by Marek during review of the sunxi patch series.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Sonic Zhang <sonic.adi@gmail.com>
diff --git a/common/cmd_gpio.c b/common/cmd_gpio.c
index 778aa5f..aff0445 100644
--- a/common/cmd_gpio.c
+++ b/common/cmd_gpio.c
@@ -11,9 +11,10 @@
#include <dm.h>
#include <asm/gpio.h>
-#ifndef name_to_gpio
-#define name_to_gpio(name) simple_strtoul(name, NULL, 10)
-#endif
+int __weak name_to_gpio(const char *name)
+{
+ return simple_strtoul(name, NULL, 10);
+}
enum gpio_cmd {
GPIO_INPUT,