mx6sabreauto: Do not enable WEIM by default
WEIM cannot be used when I2C3 is enabled due to pin conflict, so keep
WEIM disabled by default.
I2C3 controls GPIO I2C expander (USB host and OTG have VBUS controlled by
the GPIO I2C expander), magnetometer, accelerometer.
Not disabling WEIM in U-Boot causes I2C3 to behave badly when booting
a NXP 4.1 kernel, which leads to probe failure on several devices,
including the lack of USB:
imx_usb 2184000.usb: Can't register ci_hdrc platform device, err=-517
By keeping WEIM disabled in U-Boot these kernel issues are gone.
Reported-by: Takashi Matsuzawa <tmatsuzawa@xevo.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/board/freescale/mx6sabreauto/mx6sabreauto.c b/board/freescale/mx6sabreauto/mx6sabreauto.c
index 13af9ca..bfd5ffa 100644
--- a/board/freescale/mx6sabreauto/mx6sabreauto.c
+++ b/board/freescale/mx6sabreauto/mx6sabreauto.c
@@ -197,6 +197,7 @@
return 0;
}
+#ifdef CONFIG_MTD_NOR_FLASH
static iomux_v3_cfg_t const eimnor_pads[] = {
IOMUX_PADS(PAD_EIM_D16__EIM_DATA16 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_D17__EIM_DATA17 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL)),
@@ -292,6 +293,7 @@
eimnor_cs_setup();
}
+#endif
static void setup_iomux_enet(void)
{
@@ -571,8 +573,10 @@
#ifdef CONFIG_NAND_MXS
setup_gpmi_nand();
#endif
- eim_clk_setup();
+#ifdef CONFIG_MTD_NOR_FLASH
+ eim_clk_setup();
+#endif
return 0;
}
@@ -601,7 +605,10 @@
#ifdef CONFIG_VIDEO_IPUV3
setup_display();
#endif
+
+#ifdef CONFIG_MTD_NOR_FLASH
setup_iomux_eimnor();
+#endif
return 0;
}