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authorPeng Fan <Peng.Fan@freescale.com>2014-12-02 09:55:28 +0800
committerStefano Babic <sbabic@denx.de>2014-12-19 15:32:13 +0100
commitfb00bda705cd983bc261fba66ca4b7f5f056fdeb (patch)
tree75df0a886b859d786edae3ff69176c7aa7ab5ef0 /board/freescale/mx6qarm2/mx6qarm2.c
parent5a3d63c5cdd839d938a535555d9d57448d212ad9 (diff)
downloadblackbird-obmc-uboot-fb00bda705cd983bc261fba66ca4b7f5f056fdeb.tar.gz
blackbird-obmc-uboot-fb00bda705cd983bc261fba66ca4b7f5f056fdeb.zip
imx:mx6qarm2 add board level support for usb
Add pinmux settings and implement board_ehci_hcd_init Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'board/freescale/mx6qarm2/mx6qarm2.c')
-rw-r--r--board/freescale/mx6qarm2/mx6qarm2.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/board/freescale/mx6qarm2/mx6qarm2.c b/board/freescale/mx6qarm2/mx6qarm2.c
index 3a5b26dde7..98ccdb785b 100644
--- a/board/freescale/mx6qarm2/mx6qarm2.c
+++ b/board/freescale/mx6qarm2/mx6qarm2.c
@@ -16,6 +16,7 @@
#include <fsl_esdhc.h>
#include <miiphy.h>
#include <netdev.h>
+#include <usb.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -213,6 +214,43 @@ int board_eth_init(bd_t *bis)
return 0;
}
+#ifdef CONFIG_USB_EHCI_MX6
+#define USB_OTHERREGS_OFFSET 0x800
+#define UCTRL_PWR_POL (1 << 9)
+
+static iomux_v3_cfg_t const usb_otg_pads[] = {
+ MX6_PAD_EIM_D22__USB_OTG_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void setup_usb(void)
+{
+ imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
+ ARRAY_SIZE(usb_otg_pads));
+
+ /*
+ * set daisy chain for otg_pin_id on 6q.
+ * for 6dl, this bit is reserved
+ */
+ imx_iomux_set_gpr_register(1, 13, 1, 1);
+}
+
+int board_ehci_hcd_init(int port)
+{
+ u32 *usbnc_usb_ctrl;
+
+ if (port > 0)
+ return -EINVAL;
+
+ usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
+ port * 4);
+
+ setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
+
+ return 0;
+}
+#endif
+
int board_early_init_f(void)
{
setup_iomux_uart();
@@ -226,6 +264,10 @@ int board_init(void)
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+#ifdef CONFIG_USB_EHCI_MX6
+ setup_usb();
+#endif
+
return 0;
}
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