blackfin: make name_to_gpio be a weak symbol

[karo-tx-uboot.git] / arch / blackfin / cpu / gpio.c

diff --git a/arch/blackfin/cpu/gpio.c b/arch/blackfin/cpu/gpio.c
index 86da706f08d2164349b485c47c988b566916d2c5..4b4cf93c2dc06d2c3aab7ad4dfb8f59cfc011dfe 100644 (file)
--- a/arch/blackfin/cpu/gpio.c
+++ b/arch/blackfin/cpu/gpio.c
@@ -759,6 +759,54 @@ void bfin_reset_boot_spi_cs(unsigned short pin)
        udelay(1);
 }
 
+int name_to_gpio(const char *name)
+{
+       int port_base;
+
+       if (tolower(*name) == 'p') {
+               ++name;
+
+               switch (tolower(*name)) {
+#ifdef GPIO_PA0
+               case 'a': port_base = GPIO_PA0; break;
+#endif
+#ifdef GPIO_PB0
+               case 'b': port_base = GPIO_PB0; break;
+#endif
+#ifdef GPIO_PC0
+               case 'c': port_base = GPIO_PC0; break;
+#endif
+#ifdef GPIO_PD0
+               case 'd': port_base = GPIO_PD0; break;
+#endif
+#ifdef GPIO_PE0
+               case 'e': port_base = GPIO_PE0; break;
+#endif
+#ifdef GPIO_PF0
+               case 'f': port_base = GPIO_PF0; break;
+#endif
+#ifdef GPIO_PG0
+               case 'g': port_base = GPIO_PG0; break;
+#endif
+#ifdef GPIO_PH0
+               case 'h': port_base = GPIO_PH0; break;
+#endif
+#ifdef GPIO_PI0
+               case 'i': port_base = GPIO_PI0; break;
+#endif
+#ifdef GPIO_PJ
+               case 'j': port_base = GPIO_PJ0; break;
+#endif
+               default:  return -1;
+               }
+
+               ++name;
+       } else
+               port_base = 0;
+
+       return port_base + simple_strtoul(name, NULL, 10);
+}
+
 void gpio_labels(void)
 {
        int c, gpio;