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Add USB Host (XHCI) driver and MSC support for Tegra X1 #2

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Add USB Host (XHCI) driver and MSC support for Tegra X1 #2

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33f88f8
usb: add XHCI host driver and USB emuMMC backend
claude May 31, 2026
950fbf2
usbh: fix verification findings; add Falcon firmware load and msc write
claude Jun 9, 2026
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9 changes: 9 additions & 0 deletions bdk/memory_map.h
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Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,15 @@
#define USB_EP_BULK_OUT_BUF_ADDR 0xFF800000
#define USB_EP_BULK_OUT_MAX_XFER SZ_8M

// USB host buffers (device and host modes are mutually exclusive).
#define USBH_BULK_IN_BUF_ADDR 0xFF100000
#define USBH_BULK_OUT_BUF_ADDR 0xFF200000
#define USBH_BULK_BUF_SZ SZ_1M
#define USBH_FW_BUF_ADDR 0xFF300000 // XUSB Falcon firmware (must stay resident).
#define USBH_FW_BUF_SZ SZ_256K
#define USBH_SCRATCHPAD_ADDR 0xFF340000 // XHCI scratchpad array + pages.
#define USBH_SCRATCHPAD_SZ SZ_256K

// #define EXT_PAYLOAD_ADDR 0xC0000000
// #define RCM_PAYLOAD_ADDR (EXT_PAYLOAD_ADDR + ALIGN(PATCHED_RELOC_SZ, 0x10))
// #define COREBOOT_ADDR (0xD0000000 - rom_size)
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4 changes: 4 additions & 0 deletions bdk/usb/usb_t210.h
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Expand Up @@ -256,6 +256,10 @@ typedef struct _t210_usb2d_t
#define XUSB_DEV_INTR_MASK 0x188
#define DEV_INTR_MASK_IP_INT_MASK BIT(16)

/* XUSB HOST IPFS/PCI registers (parallel layout to DEV side) */
#define XUSB_HOST_CONFIGURATION 0x180
#define HOST_CONFIGURATION_EN_FPCI BIT(0)

/* XUSB Pad Control registers */
#define XUSB_PADCTL_USB2_PAD_MUX 0x4
#define PADCTL_USB2_PAD_MUX_USB2_OTG_PAD_PORT0_USB2 (0 << 0)
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