drivers/usb/host/xhci-rcar-regs.h

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/xhci-rcar-regs.h

Extension

.h

Size

1726 bytes

Lines

50

Domain

Driver Families

Bucket

drivers/usb

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __XHCI_RCAR_H
#define __XHCI_RCAR_H

/*** Register Offset ***/
#define RCAR_USB3_AXH_STA	0x104	/* AXI Host Control Status */
#define RCAR_USB3_INT_ENA	0x224	/* Interrupt Enable */
#define RCAR_USB3_DL_CTRL	0x250	/* FW Download Control & Status */
#define RCAR_USB3_FW_DATA0	0x258	/* FW Data0 */

#define RCAR_USB3_LCLK		0xa44	/* LCLK Select */
#define RCAR_USB3_CONF1		0xa48	/* USB3.0 Configuration1 */
#define RCAR_USB3_CONF2		0xa5c	/* USB3.0 Configuration2 */
#define RCAR_USB3_CONF3		0xaa8	/* USB3.0 Configuration3 */
#define RCAR_USB3_RX_POL	0xab0	/* USB3.0 RX Polarity */
#define RCAR_USB3_TX_POL	0xab8	/* USB3.0 TX Polarity */

/*** Register Settings ***/
/* AXI Host Control Status */
#define RCAR_USB3_AXH_STA_B3_PLL_ACTIVE		0x00010000
#define RCAR_USB3_AXH_STA_B2_PLL_ACTIVE		0x00000001
#define RCAR_USB3_AXH_STA_PLL_ACTIVE_MASK (RCAR_USB3_AXH_STA_B3_PLL_ACTIVE | \
					   RCAR_USB3_AXH_STA_B2_PLL_ACTIVE)

/* Interrupt Enable */
#define RCAR_USB3_INT_XHC_ENA	0x00000001
#define RCAR_USB3_INT_PME_ENA	0x00000002
#define RCAR_USB3_INT_HSE_ENA	0x00000004
#define RCAR_USB3_INT_ENA_VAL	(RCAR_USB3_INT_XHC_ENA | \
				RCAR_USB3_INT_PME_ENA | RCAR_USB3_INT_HSE_ENA)

/* FW Download Control & Status */
#define RCAR_USB3_DL_CTRL_ENABLE	0x00000001
#define RCAR_USB3_DL_CTRL_FW_SUCCESS	0x00000010
#define RCAR_USB3_DL_CTRL_FW_SET_DATA0	0x00000100

/* LCLK Select */
#define RCAR_USB3_LCLK_ENA_VAL	0x01030001

/* USB3.0 Configuration */
#define RCAR_USB3_CONF1_VAL	0x00030204
#define RCAR_USB3_CONF2_VAL	0x00030300
#define RCAR_USB3_CONF3_VAL	0x13802007

/* USB3.0 Polarity */
#define RCAR_USB3_RX_POL_VAL	BIT(21)
#define RCAR_USB3_TX_POL_VAL	BIT(4)

#endif /* __XHCI_RCAR_H */

Annotation

• Atlas domain: Driver Families / drivers/usb.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.