MX51: Add support for usb host 2

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

diff --git a/arch/arm/mach-mx5/devices.c b/arch/arm/mach-mx5/devices.c
index ac55f7f0c204ed8bed4d2fbeefb49a8ca9ff44bc..1bda5cb339dca4a93485eaf2349bf5ca2c17c535 100644 (file)
--- a/arch/arm/mach-mx5/devices.c
+++ b/arch/arm/mach-mx5/devices.c
@@ -97,6 +97,29 @@ struct platform_device mxc_usbh1_device = {
        },
 };
 
+static struct resource usbh2_resources[] = {
+       {
+               .start = MX51_OTG_BASE_ADDR + 0x400,
+               .end = MX51_OTG_BASE_ADDR + 0x400 + 0x1ff,
+               .flags = IORESOURCE_MEM,
+       },
+       {
+               .start = MX51_MXC_INT_USB_H2,
+               .flags = IORESOURCE_IRQ,
+       },
+};
+
+struct platform_device mxc_usbh2_device = {
+       .name = "mxc-ehci",
+       .id = 2,
+       .num_resources = ARRAY_SIZE(usbh2_resources),
+       .resource = usbh2_resources,
+       .dev = {
+               .dma_mask = &usb_dma_mask,
+               .coherent_dma_mask = DMA_BIT_MASK(32),
+       },
+};
+
 static struct resource mxc_kpp_resources[] = {
        {
                .start = MX51_MXC_INT_KPP,

diff --git a/arch/arm/mach-mx5/devices.h b/arch/arm/mach-mx5/devices.h
index ccb7cdc9921b9c5bd5027167e48ccb7201315be1..16891aa3573c424acb36962d4411786c3fc193a2 100644 (file)
--- a/arch/arm/mach-mx5/devices.h
+++ b/arch/arm/mach-mx5/devices.h
@@ -1,5 +1,6 @@
 extern struct platform_device mxc_usbdr_host_device;
 extern struct platform_device mxc_usbh1_device;
+extern struct platform_device mxc_usbh2_device;
 extern struct platform_device mxc_usbdr_udc_device;
 extern struct platform_device mxc_hsi2c_device;
 extern struct platform_device mxc_keypad_device;

diff --git a/arch/arm/plat-mxc/ehci.c b/arch/arm/plat-mxc/ehci.c
index a45660301b08981ac2ee3b430a66fdbc8d5d1bec..8772ce346a584771764e605dc9331d7f47e0c212 100644 (file)
--- a/arch/arm/plat-mxc/ehci.c
+++ b/arch/arm/plat-mxc/ehci.c
@@ -49,6 +49,7 @@
 
 #define MXC_OTG_OFFSET         0
 #define MXC_H1_OFFSET          0x200
+#define MXC_H2_OFFSET          0x400
 
 /* USB_CTRL */
 #define MXC_OTG_UCTRL_OWIE_BIT         (1 << 27)       /* OTG wakeup intr enable */
@@ -61,6 +62,11 @@
 #define MXC_OTG_PHYCTRL_OC_DIS_BIT     (1 << 8)        /* OTG Disable Overcurrent Event */
 #define MXC_H1_OC_DIS_BIT                      (1 << 5)        /* UH1 Disable Overcurrent Event */
 
+/* USBH2CTRL */
+#define MXC_H2_UCTRL_H2UIE_BIT         (1 << 8)
+#define MXC_H2_UCTRL_H2WIE_BIT         (1 << 7)
+#define MXC_H2_UCTRL_H2PM_BIT          (1 << 4)
+
 #define MXC_USBCMD_OFFSET                      0x140
 
 /* USBCMD */
@@ -266,6 +272,9 @@ int mxc_initialize_usb_hw(int port, unsigned int flags)
                case 1: /* Host 1 port */
                        usbotg_base = usb_base + MXC_H1_OFFSET;
                        break;
+               case 2: /* Host 2 port */
+                       usbotg_base = usb_base + MXC_H2_OFFSET;
+                       break;
                default:
                        printk(KERN_ERR"%s no such port %d\n", __func__, port);
                        ret = -ENOENT;
@@ -329,6 +338,22 @@ int mxc_initialize_usb_hw(int port, unsigned int flags)
                                v &= MXC_UCMD_ITC_NO_THRESHOLD_MASK;
                        __raw_writel(v, usbotg_base + MXC_USBCMD_OFFSET);
                        break;
+               case 2: /* Host 2 ULPI */
+                       v = __raw_readl(usbother_base + MXC_USBH2CTRL_OFFSET);
+                       if (flags & MXC_EHCI_WAKEUP_ENABLED) {
+                               /* HOST1 wakeup/ULPI intr enable */
+                               v |= (MXC_H2_UCTRL_H2WIE_BIT | MXC_H2_UCTRL_H2UIE_BIT);
+                       } else {
+                               /* HOST1 wakeup/ULPI intr disable */
+                               v &= ~(MXC_H2_UCTRL_H2WIE_BIT | MXC_H2_UCTRL_H2UIE_BIT);
+                       }
+
+                       if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+                               v &= ~MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used*/
+                       else
+                               v |= MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used*/
+                       __raw_writel(v, usbother_base + MXC_USBH2CTRL_OFFSET);
+                       break;
                }
 
 error:

diff --git a/arch/arm/plat-mxc/include/mach/mxc_ehci.h b/arch/arm/plat-mxc/include/mach/mxc_ehci.h
index 7fc5f9946199ef66f0353fbd83b78101cee469eb..a523a4079299e987b0af64947409a3a2bb33db8e 100644 (file)
--- a/arch/arm/plat-mxc/include/mach/mxc_ehci.h
+++ b/arch/arm/plat-mxc/include/mach/mxc_ehci.h
@@ -31,6 +31,7 @@
 #define MXC_USBCTRL_OFFSET             0
 #define MXC_USB_PHY_CTR_FUNC_OFFSET    0x8
 #define MXC_USB_PHY_CTR_FUNC2_OFFSET   0xc
+#define MXC_USBH2CTRL_OFFSET           0x14
 
 #define MX5_USBOTHER_REGS_OFFSET       0x800