ARM: OMAP: board-am3517evm: Configure McBSP1 CLKR/FSR signal source

am3517evm board uses McBSP1 for audio with 4pin configuration.
The CLKR/FSR signals need to be connected to CLKX/FSX pin of the SoC in
this case.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 18f601096ce1..592812af84da 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -264,6 +264,16 @@ static __init void am3517_evm_musb_init(void)
         usb_musb_init(&musb_board_data);
 }
 
+static __init void am3517_evm_mcbsp1_init(void)
+{
+        u32 devconf0;
+
+        /* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */
+        devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
+        devconf0 |=  OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK;
+        omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0);
+}
+
 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
@@ -373,6 +383,9 @@ static void __init am3517_evm_init(void)
         /* MUSB */
         am3517_evm_musb_init();
 
+        /* McBSP1 */
+        am3517_evm_mcbsp1_init();
+
         /* MMC init function */
         omap_hsmmc_init(mmc);
 }