From 120701646f939eb2c360a9917e56fd2cf78631cd Mon Sep 17 00:00:00 2001
From: Amaury Pouly <amaury.pouly@gmail.com>
Date: Thu, 26 Sep 2013 20:12:42 +0200
Subject: [PATCH] imx233: always start SSPCLK before ungating the spp blocks

This should fix some boot hang issues which appeared at random.

Change-Id: I5430690a61c042b45ed26b58f485a1cc5d82987f
---
 firmware/target/arm/imx233/ssp-imx233.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/firmware/target/arm/imx233/ssp-imx233.c b/firmware/target/arm/imx233/ssp-imx233.c
index 2873ab9604..686436af74 100644
--- a/firmware/target/arm/imx233/ssp-imx233.c
+++ b/firmware/target/arm/imx233/ssp-imx233.c
@@ -117,16 +117,8 @@ void imx233_ssp_init(void)
     }
 }
 
-void imx233_ssp_start(int ssp)
+static void start_ssp_clock(void)
 {
-    ASSERT_SSP(ssp)
-    if(ssp_in_use[ssp - 1])
-        return;
-    ssp_in_use[ssp - 1] = true;
-    /* Gate block */
-    imx233_ssp_softreset(ssp);
-    /* Gate dma channel */
-    imx233_dma_clkgate_channel(APB_SSP(ssp), true);
     /* If first block to start, start SSP clock */
     if(ssp_nr_in_use == 0)
     {
@@ -140,6 +132,20 @@ void imx233_ssp_start(int ssp)
 #endif
         imx233_clkctrl_enable(CLK_SSP, true);
     }
+}
+
+void imx233_ssp_start(int ssp)
+{
+    ASSERT_SSP(ssp)
+    if(ssp_in_use[ssp - 1])
+        return;
+    ssp_in_use[ssp - 1] = true;
+    /* Enable SSP clock (need to start block) */
+    start_ssp_clock();
+    /* Gate block */
+    imx233_ssp_softreset(ssp);
+    /* Gate dma channel */
+    imx233_dma_clkgate_channel(APB_SSP(ssp), true);
     ssp_nr_in_use++;
 }