1 files changed, 154 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/mach-pcm043.c b/arch/arm/mach-mx3/mach-pcm043.c
index 25942b8e8bed..1bf1ec2eef5e 100644
--- a/arch/arm/mach-mx3/mach-pcm043.c
+++ b/arch/arm/mach-mx3/mach-pcm043.c
@@ -26,8 +26,12 @@
 #include <linux/gpio.h>
 #include <linux/smc911x.h>
 #include <linux/interrupt.h>
+#include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/i2c/at24.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/fsl_devices.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -44,6 +48,10 @@
 #include <mach/ipu.h>
 #include <mach/mx3fb.h>
 #include <mach/mxc_nand.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
+#include <mach/audmux.h>
+#include <mach/ssi.h>
 
 #include "devices.h"
 
@@ -205,6 +213,94 @@ static struct pad_desc pcm043_pads[] = {
         MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
         /* gpio */
         MX35_PAD_ATA_CS0__GPIO2_6,
+        /* USB host */
+        MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
+        MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
+        /* SSI */
+        MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
+        MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
+        MX35_PAD_SRXD4__AUDMUX_AUD4_RXD,
+        MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
+};
+
+#define AC97_GPIO_TXFS  (1 * 32 + 31)
+#define AC97_GPIO_TXD   (1 * 32 + 28)
+#define AC97_GPIO_RESET (1 * 32 + 0)
+
+static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+        struct pad_desc txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
+        struct pad_desc txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
+        int ret;
+
+        ret = gpio_request(AC97_GPIO_TXFS, "SSI");
+        if (ret) {
+                printk("failed to get GPIO_TXFS: %d\n", ret);
+                return;
+        }
+
+        mxc_iomux_v3_setup_pad(&txfs_gpio);
+
+        /* warm reset */
+        gpio_direction_output(AC97_GPIO_TXFS, 1);
+        udelay(2);
+        gpio_set_value(AC97_GPIO_TXFS, 0);
+
+        gpio_free(AC97_GPIO_TXFS);
+        mxc_iomux_v3_setup_pad(&txfs);
+}
+
+static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97)
+{
+        struct pad_desc txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
+        struct pad_desc txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
+        struct pad_desc txd_gpio = MX35_PAD_STXD4__GPIO2_28;
+        struct pad_desc txd = MX35_PAD_STXD4__AUDMUX_AUD4_TXD;
+        struct pad_desc reset_gpio = MX35_PAD_SD2_CMD__GPIO2_0;
+        int ret;
+
+        ret = gpio_request(AC97_GPIO_TXFS, "SSI");
+        if (ret)
+                goto err1;
+
+        ret = gpio_request(AC97_GPIO_TXD, "SSI");
+        if (ret)
+                goto err2;
+
+        ret = gpio_request(AC97_GPIO_RESET, "SSI");
+        if (ret)
+                goto err3;
+
+        mxc_iomux_v3_setup_pad(&txfs_gpio);
+        mxc_iomux_v3_setup_pad(&txd_gpio);
+        mxc_iomux_v3_setup_pad(&reset_gpio);
+
+        gpio_direction_output(AC97_GPIO_TXFS, 0);
+        gpio_direction_output(AC97_GPIO_TXD, 0);
+
+        /* cold reset */
+        gpio_direction_output(AC97_GPIO_RESET, 0);
+        udelay(10);
+        gpio_direction_output(AC97_GPIO_RESET, 1);
+
+        mxc_iomux_v3_setup_pad(&txd);
+        mxc_iomux_v3_setup_pad(&txfs);
+
+        gpio_free(AC97_GPIO_RESET);
+err3:
+        gpio_free(AC97_GPIO_TXD);
+err2:
+        gpio_free(AC97_GPIO_TXFS);
+err1:
+        if (ret)
+                printk("%s failed with %d\n", __func__, ret);
+        mdelay(1);
+}
+
+static struct imx_ssi_platform_data pcm043_ssi_pdata = {
+        .ac97_reset = pcm043_ac97_cold_reset,
+        .ac97_warm_reset = pcm043_ac97_warm_reset,
+        .flags = IMX_SSI_USE_AC97,
 };
 
 static struct mxc_nand_platform_data pcm037_nand_board_info = {
@@ -212,6 +308,37 @@ static struct mxc_nand_platform_data pcm037_nand_board_info = {
         .hw_ecc = 1,
 };
 
+static struct mxc_usbh_platform_data otg_pdata = {
+        .portsc = MXC_EHCI_MODE_UTMI,
+        .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static struct mxc_usbh_platform_data usbh1_pdata = {
+        .portsc = MXC_EHCI_MODE_SERIAL,
+        .flags  = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
+                  MXC_EHCI_IPPUE_DOWN,
+};
+
+static struct fsl_usb2_platform_data otg_device_pdata = {
+        .operating_mode = FSL_USB2_DR_DEVICE,
+        .phy_mode       = FSL_USB2_PHY_UTMI,
+};
+
+static int otg_mode_host;
+
+static int __init pcm043_otg_mode(char *options)
+{
+        if (!strcmp(options, "host"))
+                otg_mode_host = 1;
+        else if (!strcmp(options, "device"))
+                otg_mode_host = 0;
+        else
+                pr_info("otg_mode neither \"host\" nor \"device\". "
+                        "Defaulting to device\n");
+        return 0;
+}
+__setup("otg_mode=", pcm043_otg_mode);
+
 /*
  * Board specific initialization.
  */
@@ -219,10 +346,23 @@ static void __init mxc_board_init(void)
 {
         mxc_iomux_v3_setup_multiple_pads(pcm043_pads, ARRAY_SIZE(pcm043_pads));
 
+        mxc_audmux_v2_configure_port(3,
+                        MXC_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
+                        MXC_AUDMUX_V2_PTCR_TFSEL(0) |
+                        MXC_AUDMUX_V2_PTCR_TFSDIR,
+                        MXC_AUDMUX_V2_PDCR_RXDSEL(0));
+
+        mxc_audmux_v2_configure_port(0,
+                        MXC_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
+                        MXC_AUDMUX_V2_PTCR_TCSEL(3) |
+                        MXC_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
+                        MXC_AUDMUX_V2_PDCR_RXDSEL(3));
+
         platform_add_devices(devices, ARRAY_SIZE(devices));
 
         mxc_register_device(&mxc_uart_device0, &uart_pdata);
         mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
+        mxc_register_device(&imx_ssi_device0, &pcm043_ssi_pdata);
 
         mxc_register_device(&mxc_uart_device1, &uart_pdata);
 
@@ -235,6 +375,20 @@ static void __init mxc_board_init(void)
 
         mxc_register_device(&mx3_ipu, &mx3_ipu_data);
         mxc_register_device(&mx3_fb, &mx3fb_pdata);
+
+#if defined(CONFIG_USB_ULPI)
+        if (otg_mode_host) {
+                otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                                USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+                mxc_register_device(&mxc_otg_host, &otg_pdata);
+        }
+
+        mxc_register_device(&mxc_usbh1, &usbh1_pdata);
+#endif
+        if (!otg_mode_host)
+                mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
+
 }
 
 static void __init pcm043_timer_init(void)