From 5060a7cdf219bd2b3170c9e9901d98ae8bd1c238 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Mon, 3 Jul 2017 13:00:30 -0600
Subject: [PATCH] samv71-xult/mrf24j40:  Add reset logic (but comment out
 because it is not necessary)

---
 configs/samv71-xult/src/sam_mrf24j40.c | 24 ++++++++++++++++++++++++
 configs/samv71-xult/src/samv71-xult.h  |  3 ++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/configs/samv71-xult/src/sam_mrf24j40.c b/configs/samv71-xult/src/sam_mrf24j40.c
index 9748ea08183..370706204d9 100644
--- a/configs/samv71-xult/src/sam_mrf24j40.c
+++ b/configs/samv71-xult/src/sam_mrf24j40.c
@@ -57,6 +57,12 @@
 
 #ifdef HAVE_MRF24J40
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#undef BEE_RESET
+
 /****************************************************************************
  * Private Types
  ****************************************************************************/
@@ -65,6 +71,9 @@ struct sam_priv_s
 {
   struct mrf24j40_lower_s dev;
   uint32_t intcfg;
+#ifdef BEE_RESET
+  uint32_t rstcfg;
+#endif
   uint8_t irq;
   uint8_t spidev;
 };
@@ -108,6 +117,9 @@ static struct sam_priv_s g_mrf24j40_mb1_priv =
   .dev.attach  = sam_attach_irq,
   .dev.enable  = sam_enable_irq,
   .intcfg      = CLICK_MB1_INTR,
+#ifdef BEE_RESET
+  .rstcfg      = CLICK_MB1_RESET,
+#endif
   .irq         = IRQ_MB1,
   .spidev      = 0,
 };
@@ -119,6 +131,9 @@ static struct sam_priv_s g_mrf24j40_mb2_priv =
   .dev.attach  = sam_attach_irq,
   .dev.enable  = sam_enable_irq,
   .intcfg      = CLICK_MB2_INTR,
+#ifdef BEE_RESET
+  .rstcfg      = CLICK_MB2_RESET,
+#endif
   .irq         = IRQ_MB2,
   .spidev      = 0,
 };
@@ -213,6 +228,15 @@ static int sam_mrf24j40_devsetup(FAR struct sam_priv_s *priv)
   FAR struct spi_dev_s *spi;
   int ret;
 
+#ifdef BEE_RESET
+  /* Bring the MRF24J40 out of reset
+   * NOTE: Not necessary.  The RST# input is pulled high on the BEE.
+   */
+
+  (void)sam_configgpio(priv->rstcfg);
+  sam_gpiowrite(priv->rstcfg, true);
+#endif
+
   /* Configure the interrupt pin */
 
   (void)sam_configgpio(priv->intcfg);
diff --git a/configs/samv71-xult/src/samv71-xult.h b/configs/samv71-xult/src/samv71-xult.h
index 789bfb925fc..2db049c86dd 100644
--- a/configs/samv71-xult/src/samv71-xult.h
+++ b/configs/samv71-xult/src/samv71-xult.h
@@ -593,7 +593,8 @@
                             GPIO_PORT_PIOA | GPIO_PIN19)
 #define CLICK_MB2_RESET    (GPIO_OUTPUT | GPIO_CFG_DEFAULT | GPIO_OUTPUT_CLEAR | \
                             GPIO_PORT_PIOD | GPIO_PIN30)
-/* Interrupts */
+
+/* Interrupts. No pull-ups on the BEE; assumig active low. */
 
 #define CLICK_MB1_INTR     (GPIO_INPUT | GPIO_CFG_PULLUP | GPIO_CFG_DEGLITCH | \
                             GPIO_INT_FALLING | GPIO_PORT_PIOA | GPIO_PIN5)