efikamx: add usb h1 support

Now that usb has been fixed, we can enable usb h1 on efikamx

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

4 files changed, 122 insertions, 4 deletions

diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index aa20a38ccc8..1405464c103 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -119,6 +119,7 @@ config MX51_EFIKA_COMMON
         select IMX_HAVE_PLATFORM_IMX_UART
         select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
         select IMX_HAVE_PLATFORM_SPI_IMX
+        select MXC_ULPI if USB_ULPI
 
 config MACH_MX51_EFIKAMX
         bool "Support MX51 Genesi Efika MX nettop"
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c
index 272de6e883e..8f173366b29 100644
--- a/arch/arm/mach-mx5/board-mx51_efikamx.c
+++ b/arch/arm/mach-mx5/board-mx51_efikamx.c
@@ -211,6 +211,20 @@ static void __init mx51_efikamx_init(void)
                 gpio_request(EFIKAMX_RESET, "reset");
                 gpio_direction_output(EFIKAMX_RESET, 1);
         }
+
+        /*
+         * enable wifi by default only on mx
+         * sb and mx have same wlan pin but the value to enable it are
+         * different :/
+         */
+        gpio_request(EFIKA_WLAN_EN, "wlan_en");
+        gpio_direction_output(EFIKA_WLAN_EN, 0);
+        msleep(10);
+
+        gpio_request(EFIKA_WLAN_RESET, "wlan_rst");
+        gpio_direction_output(EFIKA_WLAN_RESET, 0);
+        msleep(10);
+        gpio_set_value(EFIKA_WLAN_RESET, 1);
 }
 
 static void __init mx51_efikamx_timer_init(void)
diff --git a/arch/arm/mach-mx5/efika.h b/arch/arm/mach-mx5/efika.h
index c8280435934..014aa985faa 100644
--- a/arch/arm/mach-mx5/efika.h
+++ b/arch/arm/mach-mx5/efika.h
@@ -1,6 +1,10 @@
 #ifndef _EFIKA_H
 #define _EFIKA_H
 
+#define EFIKA_WLAN_EN           IMX_GPIO_NR(2, 16)
+#define EFIKA_WLAN_RESET        IMX_GPIO_NR(2, 10)
+#define EFIKA_USB_PHY_RESET     IMX_GPIO_NR(2, 9)
+
 void __init efika_board_common_init(void);
 
 #endif
diff --git a/arch/arm/mach-mx5/mx51_efika.c b/arch/arm/mach-mx5/mx51_efika.c
index a249ca3c413..c08ec63415e 100644
--- a/arch/arm/mach-mx5/mx51_efika.c
+++ b/arch/arm/mach-mx5/mx51_efika.c
@@ -30,6 +30,10 @@
 #include <mach/i2c.h>
 #include <mach/mxc_ehci.h>
 
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <mach/ulpi.h>
+
 #include <asm/irq.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
@@ -40,7 +44,12 @@
 #include "devices.h"
 #include "efika.h"
 
-#define MX51_USB_PLL_DIV_24_MHZ 0x01
+#define MX51_USB_CTRL_1_OFFSET          0x10
+#define MX51_USB_CTRL_UH1_EXT_CLK_EN    (1 << 25)
+#define MX51_USB_PLL_DIV_19_2_MHZ       0x01
+
+#define EFIKAMX_USB_HUB_RESET   IMX_GPIO_NR(1, 5)
+#define EFIKAMX_USBH1_STP       IMX_GPIO_NR(1, 27)
 
 #define EFIKAMX_SPI_CS0         IMX_GPIO_NR(4, 24)
 #define EFIKAMX_SPI_CS1         IMX_GPIO_NR(4, 25)
@@ -81,6 +90,29 @@ static iomux_v3_cfg_t mx51efika_pads[] = {
         MX51_PAD_CSPI1_SS1__GPIO4_25,
         MX51_PAD_CSPI1_RDY__ECSPI1_RDY,
         MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,
+
+        /* USB HOST1 */
+        MX51_PAD_USBH1_CLK__USBH1_CLK,
+        MX51_PAD_USBH1_DIR__USBH1_DIR,
+        MX51_PAD_USBH1_NXT__USBH1_NXT,
+        MX51_PAD_USBH1_DATA0__USBH1_DATA0,
+        MX51_PAD_USBH1_DATA1__USBH1_DATA1,
+        MX51_PAD_USBH1_DATA2__USBH1_DATA2,
+        MX51_PAD_USBH1_DATA3__USBH1_DATA3,
+        MX51_PAD_USBH1_DATA4__USBH1_DATA4,
+        MX51_PAD_USBH1_DATA5__USBH1_DATA5,
+        MX51_PAD_USBH1_DATA6__USBH1_DATA6,
+        MX51_PAD_USBH1_DATA7__USBH1_DATA7,
+
+        /* USB HUB RESET */
+        MX51_PAD_GPIO1_5__GPIO1_5,
+
+        /* WLAN */
+        MX51_PAD_EIM_A22__GPIO2_16,
+        MX51_PAD_EIM_A16__GPIO2_10,
+
+        /* USB PHY RESET */
+        MX51_PAD_EIM_D27__GPIO2_9,
 };
 
 /* Serial ports */
@@ -105,13 +137,13 @@ static int initialize_otg_port(struct platform_device *pdev)
         /* Set the PHY clock to 19.2MHz */
         v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
         v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK;
-        v |= MX51_USB_PLL_DIV_24_MHZ;
+        v |= MX51_USB_PLL_DIV_19_2_MHZ;
         __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
         iounmap(usb_base);
 
         mdelay(10);
 
-        return mx51_initialize_usb_hw(0, MXC_EHCI_INTERNAL_PHY);
+        return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
 }
 
 static struct mxc_usbh_platform_data dr_utmi_config = {
@@ -119,6 +151,73 @@ static struct mxc_usbh_platform_data dr_utmi_config = {
         .portsc = MXC_EHCI_UTMI_16BIT,
 };
 
+static int initialize_usbh1_port(struct platform_device *pdev)
+{
+        iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP;
+        iomux_v3_cfg_t usbh1gpio = MX51_PAD_USBH1_STP__GPIO1_27;
+        u32 v;
+        void __iomem *usb_base;
+        void __iomem *socregs_base;
+
+        mxc_iomux_v3_setup_pad(usbh1gpio);
+        gpio_request(EFIKAMX_USBH1_STP, "usbh1_stp");
+        gpio_direction_output(EFIKAMX_USBH1_STP, 0);
+        msleep(1);
+        gpio_set_value(EFIKAMX_USBH1_STP, 1);
+        msleep(1);
+
+        usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+        socregs_base = (void __iomem *)(usb_base + MX5_USBOTHER_REGS_OFFSET);
+
+        /* The clock for the USBH1 ULPI port will come externally */
+        /* from the PHY. */
+        v = __raw_readl(socregs_base + MX51_USB_CTRL_1_OFFSET);
+        __raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN,
+                        socregs_base + MX51_USB_CTRL_1_OFFSET);
+
+        iounmap(usb_base);
+
+        gpio_free(EFIKAMX_USBH1_STP);
+        mxc_iomux_v3_setup_pad(usbh1stp);
+
+        mdelay(10);
+
+        return mx51_initialize_usb_hw(0, MXC_EHCI_ITC_NO_THRESHOLD);
+}
+
+static struct mxc_usbh_platform_data usbh1_config = {
+        .init   = initialize_usbh1_port,
+        .portsc = MXC_EHCI_MODE_ULPI,
+};
+
+static void mx51_efika_hubreset(void)
+{
+        gpio_request(EFIKAMX_USB_HUB_RESET, "usb_hub_rst");
+        gpio_direction_output(EFIKAMX_USB_HUB_RESET, 1);
+        msleep(1);
+        gpio_set_value(EFIKAMX_USB_HUB_RESET, 0);
+        msleep(1);
+        gpio_set_value(EFIKAMX_USB_HUB_RESET, 1);
+}
+
+static void __init mx51_efika_usb(void)
+{
+        mx51_efika_hubreset();
+
+        /* pulling it low, means no USB at all... */
+        gpio_request(EFIKA_USB_PHY_RESET, "usb_phy_reset");
+        gpio_direction_output(EFIKA_USB_PHY_RESET, 0);
+        msleep(1);
+        gpio_set_value(EFIKA_USB_PHY_RESET, 1);
+
+        usbh1_config.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                                ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT |
+                                ULPI_OTG_EXTVBUSIND);
+
+        mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config);
+        mxc_register_device(&mxc_usbh1_device, &usbh1_config);
+}
+
 static struct mtd_partition mx51_efika_spi_nor_partitions[] = {
         {
          .name = "u-boot",
@@ -164,8 +263,8 @@ void __init efika_board_common_init(void)
 {
         mxc_iomux_v3_setup_multiple_pads(mx51efika_pads,
                                         ARRAY_SIZE(mx51efika_pads));
-        mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config);
         imx51_add_imx_uart(0, &uart_pdata);
+        mx51_efika_usb();
         imx51_add_sdhci_esdhc_imx(0, NULL);
 
         spi_register_board_info(mx51_efika_spi_board_info,