[U-Boot] [PATCH] imx: mx6q_4x_mt41j128.cfg: Setup CCM_CCOSR register

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at freescale.com>

Setup CCM_CCOSR register to provide a CKO1 clock frequency of 16.5 MHz.

CKO1 drives sgtl5000 codec clock on mx6qsabrelite and doing this setup in the 
bootloader will allow us to remove a lot of code in arch/arm/mach-imx/mach-imx6q.c 
from the mainline kernel.

mx6q_4x_mt41j128.cfg is also used by mx6qsabresd, and it is safe to use it for
this board as well.

Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
---
 board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg b/board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
index f4cae5e..4661775 100644
--- a/board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
+++ b/board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
@@ -172,3 +172,14 @@ DATA 4 0x020e0010 0xF00000CF
 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
 DATA 4 0x020e0018 0x007F007F
 DATA 4 0x020e001c 0x007F007F
+
+/*
+ * Setup CCM_CCOSR register as follows:
+ *
+ * cko1_en  = 1	   --> CKO1 enabled
+ * cko1_div = 111  --> divide by 8
+ * cko1_sel = 1011 --> ahb_clk_root
+ *
+ * This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz
+ */
+DATA 4 0x020c4060 0x000000fb
-- 
1.7.9.5