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authorPeng Fan <Peng.Fan@freescale.com>2014-12-02 09:55:27 +0800
committerStefano Babic <sbabic@denx.de>2014-12-19 15:32:13 +0100
commit5a3d63c5cdd839d938a535555d9d57448d212ad9 (patch)
tree7b88126480c59a3fd7eb94075165dfffa81ce601 /board
parenteb412d79e476e871374ed1b8e561287746609018 (diff)
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imx:mx6sabresd add board level support for usb
Add pinmux settings, implement board_ehci_hcd_init and board_ehci_power Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'board')
-rw-r--r--board/freescale/mx6sabresd/mx6sabresd.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index ac3757f..2f7198d 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -29,6 +29,7 @@
#include <power/pfuze100_pmic.h>
#include "../common/pfuze.h"
#include <asm/arch/mx6-ddr.h>
+#include <usb.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -537,6 +538,69 @@ int board_eth_init(bd_t *bis)
return cpu_eth_init(bis);
}
+#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_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usb_hc1_pads[] = {
+ MX6_PAD_ENET_TXD1__GPIO1_IO29 | 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, 0);
+
+ imx_iomux_v3_setup_multiple_pads(usb_hc1_pads,
+ ARRAY_SIZE(usb_hc1_pads));
+}
+
+int board_ehci_hcd_init(int port)
+{
+ u32 *usbnc_usb_ctrl;
+
+ if (port > 1)
+ return -EINVAL;
+
+ usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
+ port * 4);
+
+ setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
+
+ return 0;
+}
+
+int board_ehci_power(int port, int on)
+{
+ switch (port) {
+ case 0:
+ break;
+ case 1:
+ if (on)
+ gpio_direction_output(IMX_GPIO_NR(1, 29), 1);
+ else
+ gpio_direction_output(IMX_GPIO_NR(1, 29), 0);
+ break;
+ default:
+ printf("MXC USB port %d not yet supported\n", port);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+#endif
+
int board_early_init_f(void)
{
setup_iomux_uart();
@@ -557,6 +621,10 @@ int board_init(void)
#endif
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+#ifdef CONFIG_USB_EHCI_MX6
+ setup_usb();
+#endif
+
return 0;
}