diff options
Diffstat (limited to 'drivers/usb/host/ehci-orion.c')
| -rw-r--r-- | drivers/usb/host/ehci-orion.c | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index e129981f139..d187d031374 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -11,15 +11,18 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <asm/arch/orion.h> +#include <linux/mbus.h> +#include <asm/plat-orion/ehci-orion.h> #define rdl(off) __raw_readl(hcd->regs + (off)) #define wrl(off, val) __raw_writel((val), hcd->regs + (off)) -#define USB_CAUSE 0x310 -#define USB_MASK 0x314 #define USB_CMD 0x140 #define USB_MODE 0x1a8 +#define USB_CAUSE 0x310 +#define USB_MASK 0x314 +#define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4)) +#define USB_WINDOW_BASE(i) (0x324 + ((i) << 4)) #define USB_IPG 0x360 #define USB_PHY_PWR_CTRL 0x400 #define USB_PHY_TX_CTRL 0x420 @@ -162,8 +165,30 @@ static const struct hc_driver ehci_orion_hc_driver = { .bus_resume = ehci_bus_resume, }; +static void __init +ehci_orion_conf_mbus_windows(struct usb_hcd *hcd, + struct mbus_dram_target_info *dram) +{ + int i; + + for (i = 0; i < 4; i++) { + wrl(USB_WINDOW_CTRL(i), 0); + wrl(USB_WINDOW_BASE(i), 0); + } + + for (i = 0; i < dram->num_cs; i++) { + struct mbus_dram_window *cs = dram->cs + i; + + wrl(USB_WINDOW_CTRL(i), ((cs->size - 1) & 0xffff0000) | + (cs->mbus_attr << 8) | + (dram->mbus_dram_target_id << 4) | 1); + wrl(USB_WINDOW_BASE(i), cs->base); + } +} + static int __init ehci_orion_drv_probe(struct platform_device *pdev) { + struct orion_ehci_data *pd = pdev->dev.platform_data; struct resource *res; struct usb_hcd *hcd; struct ehci_hcd *ehci; @@ -227,6 +252,12 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) ehci->sbrn = 0x20; /* + * (Re-)program MBUS remapping windows if we are asked to. + */ + if (pd != NULL && pd->dram != NULL) + ehci_orion_conf_mbus_windows(hcd, pd->dram); + + /* * setup Orion USB controller */ orion_usb_setup(hcd); |