Signed-off-by: Wolfgang Grandegger <w...@denx.de>
CC: Stefano Babic <sba...@denx.de>
---
board/freescale/mx51evk/mx51evk.c | 92 +++++++++++++++++++++++++++++++++++++
include/configs/mx51evk.h | 13 +++++
2 files changed, 105 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mx51evk/mx51evk.c
b/board/freescale/mx51evk/mx51evk.c
index 37e6e4d..12354b3 100644
--- a/board/freescale/mx51evk/mx51evk.c
+++ b/board/freescale/mx51evk/mx51evk.c
@@ -172,6 +172,95 @@ static void setup_iomux_spi(void)
}
#endif
+#ifdef CONFIG_USB_EHCI_MX5
+#define MX51EVK_USBH1_HUB_RST IMX_GPIO_NR(1, 7) /* GPIO_1_7 */
+#define MX51EVK_USBH1_STP IMX_GPIO_NR(1, 27) /* GPIO_1_27 */
+#define MX51EVK_USB_CLK_EN_B IMX_GPIO_NR(2, 1) /* GPIO_2_1 */
+#define MX51EVK_USB_PHY_RESET IMX_GPIO_NR(2, 5) /* GPIO_2_5 */
+
+#define USBH1_PAD (PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH | \
+ PAD_CTL_100K_PU | PAD_CTL_PUE_PULL | \
+ PAD_CTL_PKE_ENABLE | PAD_CTL_HYS_ENABLE)
+#define GPIO_PAD (PAD_CTL_DRV_HIGH | PAD_CTL_PKE_ENABLE | \
+ PAD_CTL_SRE_FAST)
+#define NO_PAD (1 << 16)
+
+static void setup_usb_h1(void)
+{
+ mxc_request_iomux(MX51_PIN_USBH1_CLK, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_CLK, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DIR, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DIR, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_NXT, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_NXT, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA0, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA0, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA1, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA1, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA2, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA2, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA3, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA3, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA4, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA4, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA5, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA5, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA6, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA6, USBH1_PAD);
+
+ mxc_request_iomux(MX51_PIN_USBH1_DATA7, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_DATA7, USBH1_PAD);
+
+ /* GPIO_1_7 for USBH1 hub reset */
+ mxc_request_iomux(MX51_PIN_GPIO1_7, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_7, NO_PAD);
+
+ /* GPIO_2_1 */
+ mxc_request_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_ALT1);
+ mxc_iomux_set_pad(MX51_PIN_EIM_D17, GPIO_PAD);
+
+ /* GPIO_2_5 for USB PHY reset */
+ mxc_request_iomux(MX51_PIN_EIM_D21, IOMUX_CONFIG_ALT1);
+ mxc_iomux_set_pad(MX51_PIN_EIM_D21, GPIO_PAD);
+}
+
+void board_ehci_hcd_init(int port)
+{
+ /* Set USBH1_STP to GPIO and toggle it */
+ mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_GPIO);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_STP, USBH1_PAD);
+
+ gpio_direction_output(MX51EVK_USBH1_STP, 0);
+ gpio_direction_output(MX51EVK_USB_PHY_RESET, 0);
+ mdelay(10);
+ gpio_set_value(MX51EVK_USBH1_STP, 1);
+
+ /* Set back USBH1_STP to be function */
+ mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_USBH1_STP, USBH1_PAD);
+
+ /* De-assert USB PHY RESETB */
+ gpio_set_value(MX51EVK_USB_PHY_RESET, 1);
+
+ /* Drive USB_CLK_EN_B line low */
+ gpio_direction_output(MX51EVK_USB_CLK_EN_B, 0);
+
+ /* Reset USB hub */
+ gpio_direction_output(MX51EVK_USBH1_HUB_RST, 0);
+ mdelay(2);
+ gpio_set_value(MX51EVK_USBH1_HUB_RST, 1);
+}
+#endif
+
static void power_init(void)
{
unsigned int val;
@@ -391,6 +480,9 @@ int board_early_init_f(void)
{
setup_iomux_uart();
setup_iomux_fec();
+#ifdef CONFIG_USB_EHCI_MX5
+ setup_usb_h1();
+#endif
return 0;
}
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index 7c7544f..18f1ebd 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -110,6 +110,19 @@
#define CONFIG_CMD_MII
#define CONFIG_CMD_NET
+/* USB Configs */
+#define CONFIG_CMD_USB
+#define CONFIG_CMD_FAT
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_MX5
+#define CONFIG_USB_STORAGE
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_ASIX
+#define CONFIG_USB_ETHER_SMSC95XX
+#define CONFIG_MXC_USB_PORT 1
+#define CONFIG_MXC_USB_PORTSC PORT_PTS_ULPI
+#define CONFIG_MXC_USB_FLAGS MXC_EHCI_POWER_PINS_ENABLED
+
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1
--
1.7.4.1
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