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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>
hifive-unleashed-5.1
Arnaud Patard (Rtp) 2010-12-20 16:48:57 +01:00 committed by Sascha Hauer
parent 08406f540c
commit 8305ed75d1
4 changed files with 50 additions and 0 deletions
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23
arch/arm/mach-mx5/devices.c
View File

@ -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,

1
arch/arm/mach-mx5/devices.h
View File

@ -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;

25
arch/arm/plat-mxc/ehci.c
View File

@ -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:

1
arch/arm/plat-mxc/include/mach/mxc_ehci.h
View File

@ -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