Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * drivers/usb/host/xhci-rcar.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2014 Renesas Electronics Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #ifndef _XHCI_RCAR_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #define _XHCI_RCAR_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define XHCI_RCAR_FIRMWARE_NAME_V1	"r8a779x_usb3_v1.dlmem"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define XHCI_RCAR_FIRMWARE_NAME_V2	"r8a779x_usb3_v2.dlmem"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define XHCI_RCAR_FIRMWARE_NAME_V3	"r8a779x_usb3_v3.dlmem"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #if IS_ENABLED(CONFIG_USB_XHCI_RCAR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) void xhci_rcar_start(struct usb_hcd *hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) int xhci_rcar_init_quirk(struct usb_hcd *hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) int xhci_rcar_resume_quirk(struct usb_hcd *hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static inline void xhci_rcar_start(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static inline int xhci_rcar_init_quirk(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static inline int xhci_rcar_resume_quirk(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  * On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  * to 1. However, these SoCs don't support 64-bit address memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  * pointers. So, this driver clears the AC64 bit of xhci->hcc_params
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  * to call dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)  * xhci_gen_setup() by using the XHCI_NO_64BIT_SUPPORT quirk.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)  * And, since the firmware/internal CPU control the USBSTS.STS_HALT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)  * and the process speed is down when the roothub port enters U3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)  * long delay for the handshake of STS_HALT is neeed in xhci_suspend()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)  * by using the XHCI_SLOW_SUSPEND quirk.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define SET_XHCI_PLAT_PRIV_FOR_RCAR(firmware)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	.firmware_name = firmware,					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	.quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH |	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		  XHCI_SLOW_SUSPEND,					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	.init_quirk = xhci_rcar_init_quirk,				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	.plat_start = xhci_rcar_start,					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	.resume_quirk = xhci_rcar_resume_quirk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #endif /* _XHCI_RCAR_H */