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 ac55f7f..1bda5cb 100644
--- a/arch/arm/mach-mx5/devices.c
+++ b/arch/arm/mach-mx5/devices.c
@@ -97,6 +97,29 @@
},
};
+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 ccb7cdc..16891aa 100644
--- 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 a456603..8772ce3 100644
--- 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 @@
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 @@
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 7fc5f99..a523a40 100644
--- 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
