Blackfin: bf518f-ezbrd: setup portmux for async flash

The pins for async memory where parallel flash lives are not enabled by
default, so make sure we mux them as needed.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

board/bf518f-ezbrd/bf518f-ezbrd.c

@@ -146,3 +146,19 @@ int misc_init_r(void)
 
 	return 0;
 }
+
+int board_early_init_f(void)
+{
+#if !defined(CONFIG_SYS_NO_FLASH)
+	/* setup BF518-EZBRD GPIO pin PG11 to AMS2. */
+	bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~PORT_x_MUX_6_MASK) | PORT_x_MUX_6_FUNC_2);
+	bfin_write_PORTG_FER(bfin_read_PORTG_FER() | PG11);
+
+# if !defined(CONFIG_BFIN_SPI)
+	/* setup BF518-EZBRD GPIO pin PG15 to AMS3. */
+	bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~PORT_x_MUX_7_MASK) | PORT_x_MUX_7_FUNC_3);
+	bfin_write_PORTG_FER(bfin_read_PORTG_FER() | PG15);
+# endif
+#endif
+	return 0;
+}

include/configs/bf518f-ezbrd.h

@@ -132,6 +132,7 @@
 /*
  * Misc Settings
  */
+#define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_MISC_INIT_R
 #define CONFIG_RTC_BFIN
 #define CONFIG_UART_CONSOLE	0