[U-Boot-Users] PATCH: CFG_GPIO0_OR and CFG_GPIO0_ODR to setup GPIO completely

[U-Boot-Users] PATCH: CFG_GPIO0_OR and CFG_GPIO0_ODR to setup GPIO completely

[Tolunay Orkun]

Re: http://sf.net/mailarchive/forum.php?thread_id=10122605&forum_id=12898

CHANGELOG:

* (ppc4xx) Add CFG_GPIO0_OR, CFG_GPIO0_ODR to setup GPIO completely.
   - Add configuration of Open Drain GPIO Output selection
   - Add configuration of initial value of GPIO output pins

Sign-off-by: Tolunay Orkun <listmember@orkun.us>

diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c
index 1a139d7..761fcf7 100644
--- a/cpu/ppc4xx/cpu_init.c
+++ b/cpu/ppc4xx/cpu_init.c
@@ -115,6 +115,12 @@ cpu_init_f (void)
  	/*
  	 * GPIO0 setup (select GPIO or alternate function)
  	 */
+#if defined(CFG_GPIO0_OR)
+	out32(GPIO0_OR, CFG_GPIO0_OR);       /* set initial state of output pins */
+#endif
+#if defined(CFG_GPIO0_ODR)
+	out32(GPIO0_ODR, CFG_GPIO0_ODR);     /* open-drain select */
+#endif
  	out32(GPIO0_OSRH, CFG_GPIO0_OSRH);   /* output select */
  	out32(GPIO0_OSRL, CFG_GPIO0_OSRL);
  	out32(GPIO0_ISR1H, CFG_GPIO0_ISR1H); /* input select */