The pin muxing and clock definitions for the MUSB controller are
not done through the same registers/pin mux options, so this
explicitly configures the registers and pin-mux options for MUSB
on AM3517-EVM
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 7f02743edbe4..e0c7ac2c87c1 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -258,9 +258,28 @@ static void __init omap3_sbc_t3517_legacy_init(void)
omap3_sbc_t3517_wifi_init();
}
+/* The pin muxing for AM3517 OTG isn't done through the normal means */
+static __init void am3517_evm_musb_init(void)
+{
+ u32 devconf2;
+
+ /*
+ * Set up USB clock/mode in the DEVCONF2 register.
+ */
+ devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
+
+ /* USB2.0 PHY reference clock is 13 MHz */
+ devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
+ devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
+ | CONF2_DATPOL;
+
+ omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
+}
+
static void __init am3517_evm_legacy_init(void)
{
am35xx_emac_reset();
+ am3517_evm_musb_init();
}
static struct platform_device omap3_rom_rng_device = {
--
2.17.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
