usb: host: imx21-hcd: Remove the driver

Since commit 4b563a066611 ("ARM: imx: Remove imx21 support") the imx21
SoC is no longer supported.

Get rid of its USB driver too, which is now unused.

Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20201109210813.21382-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 431 deletions

diff --git a/drivers/usb/host/imx21-hcd.h b/drivers/usb/host/imx21-hcd.h
deleted file mode 100644
index 96d16752a73e..000000000000
--- a/drivers/usb/host/imx21-hcd.h
+++ /dev/null
@@ -1,431 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Macros and prototypes for i.MX21
- *
- * Copyright (C) 2006 Loping Dog Embedded Systems
- * Copyright (C) 2009 Martin Fuzzey
- * Originally written by Jay Monkman <jtm@lopingdog.com>
- * Ported to 2.6.30, debugged and enhanced by Martin Fuzzey
- */
-
-#ifndef __LINUX_IMX21_HCD_H__
-#define __LINUX_IMX21_HCD_H__
-
-#ifdef CONFIG_DYNAMIC_DEBUG
-#define DEBUG
-#endif
-
-#include <linux/platform_data/usb-mx2.h>
-
-#define NUM_ISO_ETDS 	2
-#define USB_NUM_ETD	32
-#define DMEM_SIZE   	4096
-
-/* Register definitions */
-#define USBOTG_HWMODE		0x00
-#define USBOTG_HWMODE_ANASDBEN		(1 << 14)
-#define USBOTG_HWMODE_OTGXCVR_SHIFT	6
-#define USBOTG_HWMODE_OTGXCVR_MASK	(3 << 6)
-#define USBOTG_HWMODE_OTGXCVR_TD_RD	(0 << 6)
-#define USBOTG_HWMODE_OTGXCVR_TS_RD	(2 << 6)
-#define USBOTG_HWMODE_OTGXCVR_TD_RS	(1 << 6)
-#define USBOTG_HWMODE_OTGXCVR_TS_RS	(3 << 6)
-#define USBOTG_HWMODE_HOSTXCVR_SHIFT	4
-#define USBOTG_HWMODE_HOSTXCVR_MASK	(3 << 4)
-#define USBOTG_HWMODE_HOSTXCVR_TD_RD	(0 << 4)
-#define USBOTG_HWMODE_HOSTXCVR_TS_RD	(2 << 4)
-#define USBOTG_HWMODE_HOSTXCVR_TD_RS	(1 << 4)
-#define USBOTG_HWMODE_HOSTXCVR_TS_RS	(3 << 4)
-#define USBOTG_HWMODE_CRECFG_MASK	(3 << 0)
-#define USBOTG_HWMODE_CRECFG_HOST	(1 << 0)
-#define USBOTG_HWMODE_CRECFG_FUNC	(2 << 0)
-#define USBOTG_HWMODE_CRECFG_HNP	(3 << 0)
-
-#define USBOTG_CINT_STAT	0x04
-#define USBOTG_CINT_STEN	0x08
-#define USBOTG_ASHNPINT			(1 << 5)
-#define USBOTG_ASFCINT			(1 << 4)
-#define USBOTG_ASHCINT			(1 << 3)
-#define USBOTG_SHNPINT			(1 << 2)
-#define USBOTG_FCINT			(1 << 1)
-#define USBOTG_HCINT			(1 << 0)
-
-#define USBOTG_CLK_CTRL		0x0c
-#define USBOTG_CLK_CTRL_FUNC		(1 << 2)
-#define USBOTG_CLK_CTRL_HST		(1 << 1)
-#define USBOTG_CLK_CTRL_MAIN		(1 << 0)
-
-#define USBOTG_RST_CTRL		0x10
-#define USBOTG_RST_RSTI2C		(1 << 15)
-#define USBOTG_RST_RSTCTRL		(1 << 5)
-#define USBOTG_RST_RSTFC		(1 << 4)
-#define USBOTG_RST_RSTFSKE		(1 << 3)
-#define USBOTG_RST_RSTRH		(1 << 2)
-#define USBOTG_RST_RSTHSIE		(1 << 1)
-#define USBOTG_RST_RSTHC		(1 << 0)
-
-#define USBOTG_FRM_INTVL    	0x14
-#define USBOTG_FRM_REMAIN   	0x18
-#define USBOTG_HNP_CSR	    	0x1c
-#define USBOTG_HNP_ISR	    	0x2c
-#define USBOTG_HNP_IEN	    	0x30
-
-#define USBOTG_I2C_TXCVR_REG(x)	(0x100 + (x))
-#define USBOTG_I2C_XCVR_DEVAD		0x118
-#define USBOTG_I2C_SEQ_OP_REG		0x119
-#define USBOTG_I2C_SEQ_RD_STARTAD	0x11a
-#define USBOTG_I2C_OP_CTRL_REG	     	0x11b
-#define USBOTG_I2C_SCLK_TO_SCK_HPER  	0x11e
-#define USBOTG_I2C_MASTER_INT_REG    	0x11f
-
-#define USBH_HOST_CTRL		0x80
-#define USBH_HOST_CTRL_HCRESET			(1 << 31)
-#define USBH_HOST_CTRL_SCHDOVR(x)		((x) << 16)
-#define USBH_HOST_CTRL_RMTWUEN			(1 << 4)
-#define USBH_HOST_CTRL_HCUSBSTE_RESET		(0 << 2)
-#define USBH_HOST_CTRL_HCUSBSTE_RESUME		(1 << 2)
-#define USBH_HOST_CTRL_HCUSBSTE_OPERATIONAL	(2 << 2)
-#define USBH_HOST_CTRL_HCUSBSTE_SUSPEND	(3 << 2)
-#define USBH_HOST_CTRL_CTLBLKSR_1		(0 << 0)
-#define USBH_HOST_CTRL_CTLBLKSR_2		(1 << 0)
-#define USBH_HOST_CTRL_CTLBLKSR_3		(2 << 0)
-#define USBH_HOST_CTRL_CTLBLKSR_4		(3 << 0)
-
-#define USBH_SYSISR		0x88
-#define USBH_SYSISR_PSCINT		(1 << 6)
-#define USBH_SYSISR_FMOFINT		(1 << 5)
-#define USBH_SYSISR_HERRINT		(1 << 4)
-#define USBH_SYSISR_RESDETINT		(1 << 3)
-#define USBH_SYSISR_SOFINT		(1 << 2)
-#define USBH_SYSISR_DONEINT		(1 << 1)
-#define USBH_SYSISR_SORINT		(1 << 0)
-
-#define USBH_SYSIEN	    	0x8c
-#define USBH_SYSIEN_PSCINT		(1 << 6)
-#define USBH_SYSIEN_FMOFINT		(1 << 5)
-#define USBH_SYSIEN_HERRINT		(1 << 4)
-#define USBH_SYSIEN_RESDETINT		(1 << 3)
-#define USBH_SYSIEN_SOFINT		(1 << 2)
-#define USBH_SYSIEN_DONEINT		(1 << 1)
-#define USBH_SYSIEN_SORINT		(1 << 0)
-
-#define USBH_XBUFSTAT	    	0x98
-#define USBH_YBUFSTAT	    	0x9c
-#define USBH_XYINTEN	    	0xa0
-#define USBH_XFILLSTAT	    	0xa8
-#define USBH_YFILLSTAT	    	0xac
-#define USBH_ETDENSET	    	0xc0
-#define USBH_ETDENCLR	    	0xc4
-#define USBH_IMMEDINT	    	0xcc
-#define USBH_ETDDONESTAT    	0xd0
-#define USBH_ETDDONEEN	    	0xd4
-#define USBH_FRMNUB	    	0xe0
-#define USBH_LSTHRESH	    	0xe4
-
-#define USBH_ROOTHUBA	    	0xe8
-#define USBH_ROOTHUBA_PWRTOGOOD_MASK	(0xff)
-#define USBH_ROOTHUBA_PWRTOGOOD_SHIFT	(24)
-#define USBH_ROOTHUBA_NOOVRCURP	(1 << 12)
-#define USBH_ROOTHUBA_OVRCURPM		(1 << 11)
-#define USBH_ROOTHUBA_DEVTYPE		(1 << 10)
-#define USBH_ROOTHUBA_PWRSWTMD		(1 << 9)
-#define USBH_ROOTHUBA_NOPWRSWT		(1 << 8)
-#define USBH_ROOTHUBA_NDNSTMPRT_MASK	(0xff)
-
-#define USBH_ROOTHUBB		0xec
-#define USBH_ROOTHUBB_PRTPWRCM(x)	(1 << ((x) + 16))
-#define USBH_ROOTHUBB_DEVREMOVE(x)	(1 << (x))
-
-#define USBH_ROOTSTAT		0xf0
-#define USBH_ROOTSTAT_CLRRMTWUE	(1 << 31)
-#define USBH_ROOTSTAT_OVRCURCHG	(1 << 17)
-#define USBH_ROOTSTAT_DEVCONWUE	(1 << 15)
-#define USBH_ROOTSTAT_OVRCURI		(1 << 1)
-#define USBH_ROOTSTAT_LOCPWRS		(1 << 0)
-
-#define USBH_PORTSTAT(x)	(0xf4 + ((x) * 4))
-#define USBH_PORTSTAT_PRTRSTSC		(1 << 20)
-#define USBH_PORTSTAT_OVRCURIC		(1 << 19)
-#define USBH_PORTSTAT_PRTSTATSC	(1 << 18)
-#define USBH_PORTSTAT_PRTENBLSC	(1 << 17)
-#define USBH_PORTSTAT_CONNECTSC	(1 << 16)
-#define USBH_PORTSTAT_LSDEVCON		(1 << 9)
-#define USBH_PORTSTAT_PRTPWRST		(1 << 8)
-#define USBH_PORTSTAT_PRTRSTST		(1 << 4)
-#define USBH_PORTSTAT_PRTOVRCURI	(1 << 3)
-#define USBH_PORTSTAT_PRTSUSPST	(1 << 2)
-#define USBH_PORTSTAT_PRTENABST	(1 << 1)
-#define USBH_PORTSTAT_CURCONST		(1 << 0)
-
-#define USB_DMAREV		0x800
-#define USB_DMAINTSTAT	    	0x804
-#define USB_DMAINTSTAT_EPERR		(1 << 1)
-#define USB_DMAINTSTAT_ETDERR		(1 << 0)
-
-#define USB_DMAINTEN	    	0x808
-#define USB_DMAINTEN_EPERRINTEN	(1 << 1)
-#define USB_DMAINTEN_ETDERRINTEN	(1 << 0)
-
-#define USB_ETDDMAERSTAT    	0x80c
-#define USB_EPDMAERSTAT	    	0x810
-#define USB_ETDDMAEN	    	0x820
-#define USB_EPDMAEN	    	0x824
-#define USB_ETDDMAXTEN	    	0x828
-#define USB_EPDMAXTEN	    	0x82c
-#define USB_ETDDMAENXYT	    	0x830
-#define USB_EPDMAENXYT	    	0x834
-#define USB_ETDDMABST4EN    	0x838
-#define USB_EPDMABST4EN	    	0x83c
-
-#define USB_MISCCONTROL	    	0x840
-#define USB_MISCCONTROL_ISOPREVFRM	(1 << 3)
-#define USB_MISCCONTROL_SKPRTRY	(1 << 2)
-#define USB_MISCCONTROL_ARBMODE	(1 << 1)
-#define USB_MISCCONTROL_FILTCC		(1 << 0)
-
-#define USB_ETDDMACHANLCLR  	0x848
-#define USB_EPDMACHANLCLR   	0x84c
-#define USB_ETDSMSA(x)	    	(0x900 + ((x) * 4))
-#define USB_EPSMSA(x)	    	(0x980 + ((x) * 4))
-#define USB_ETDDMABUFPTR(x) 	(0xa00 + ((x) * 4))
-#define USB_EPDMABUFPTR(x)  	(0xa80 + ((x) * 4))
-
-#define USB_ETD_DWORD(x, w)	(0x200 + ((x) * 16) + ((w) * 4))
-#define DW0_ADDRESS	0
-#define	DW0_ENDPNT	7
-#define	DW0_DIRECT	11
-#define	DW0_SPEED	13
-#define DW0_FORMAT	14
-#define DW0_MAXPKTSIZ	16
-#define DW0_HALTED	27
-#define	DW0_TOGCRY	28
-#define	DW0_SNDNAK	30
-
-#define DW1_XBUFSRTAD	0
-#define DW1_YBUFSRTAD	16
-
-#define DW2_RTRYDELAY	0
-#define DW2_POLINTERV	0
-#define DW2_STARTFRM	0
-#define DW2_RELPOLPOS	8
-#define DW2_DIRPID	16
-#define	DW2_BUFROUND	18
-#define DW2_DELAYINT	19
-#define DW2_DATATOG	22
-#define DW2_ERRORCNT	24
-#define	DW2_COMPCODE	28
-
-#define DW3_TOTBYECNT	0
-#define DW3_PKTLEN0	0
-#define DW3_COMPCODE0	12
-#define DW3_PKTLEN1	16
-#define DW3_BUFSIZE	21
-#define DW3_COMPCODE1	28
-
-#define USBCTRL		    	0x600
-#define USBCTRL_I2C_WU_INT_STAT	(1 << 27)
-#define USBCTRL_OTG_WU_INT_STAT	(1 << 26)
-#define USBCTRL_HOST_WU_INT_STAT	(1 << 25)
-#define USBCTRL_FNT_WU_INT_STAT	(1 << 24)
-#define USBCTRL_I2C_WU_INT_EN		(1 << 19)
-#define USBCTRL_OTG_WU_INT_EN		(1 << 18)
-#define USBCTRL_HOST_WU_INT_EN		(1 << 17)
-#define USBCTRL_FNT_WU_INT_EN		(1 << 16)
-#define USBCTRL_OTC_RCV_RXDP		(1 << 13)
-#define USBCTRL_HOST1_BYP_TLL		(1 << 12)
-#define USBCTRL_OTG_BYP_VAL(x)		((x) << 10)
-#define USBCTRL_HOST1_BYP_VAL(x)	((x) << 8)
-#define USBCTRL_OTG_PWR_MASK		(1 << 6)
-#define USBCTRL_HOST1_PWR_MASK		(1 << 5)
-#define USBCTRL_HOST2_PWR_MASK		(1 << 4)
-#define USBCTRL_USB_BYP			(1 << 2)
-#define USBCTRL_HOST1_TXEN_OE		(1 << 1)
-
-#define USBOTG_DMEM		0x1000
-
-/* Values in TD blocks */
-#define TD_DIR_SETUP	    0
-#define TD_DIR_OUT	    1
-#define TD_DIR_IN	    2
-#define TD_FORMAT_CONTROL   0
-#define TD_FORMAT_ISO	    1
-#define TD_FORMAT_BULK	    2
-#define TD_FORMAT_INT	    3
-#define TD_TOGGLE_CARRY	    0
-#define TD_TOGGLE_DATA0	    2
-#define TD_TOGGLE_DATA1	    3
-
-/* control transfer states */
-#define US_CTRL_SETUP	2
-#define US_CTRL_DATA	1
-#define US_CTRL_ACK	0
-
-/* bulk transfer main state and 0-length packet */
-#define US_BULK		1
-#define US_BULK0	0
-
-/*ETD format description*/
-#define IMX_FMT_CTRL   0x0
-#define IMX_FMT_ISO    0x1
-#define IMX_FMT_BULK   0x2
-#define IMX_FMT_INT    0x3
-
-static char fmt_urb_to_etd[4] = {
-/*PIPE_ISOCHRONOUS*/ IMX_FMT_ISO,
-/*PIPE_INTERRUPT*/ IMX_FMT_INT,
-/*PIPE_CONTROL*/ IMX_FMT_CTRL,
-/*PIPE_BULK*/ IMX_FMT_BULK
-};
-
-/* condition (error) CC codes and mapping (OHCI like) */
-
-#define TD_CC_NOERROR		0x00
-#define TD_CC_CRC		0x01
-#define TD_CC_BITSTUFFING	0x02
-#define TD_CC_DATATOGGLEM	0x03
-#define TD_CC_STALL		0x04
-#define TD_DEVNOTRESP		0x05
-#define TD_PIDCHECKFAIL		0x06
-/*#define TD_UNEXPECTEDPID	0x07 - reserved, not active on MX2*/
-#define TD_DATAOVERRUN		0x08
-#define TD_DATAUNDERRUN		0x09
-#define TD_BUFFEROVERRUN	0x0C
-#define TD_BUFFERUNDERRUN	0x0D
-#define	TD_SCHEDULEOVERRUN	0x0E
-#define TD_NOTACCESSED		0x0F
-
-static const int cc_to_error[16] = {
-	/* No  Error  */ 0,
-	/* CRC Error  */ -EILSEQ,
-	/* Bit Stuff  */ -EPROTO,
-	/* Data Togg  */ -EILSEQ,
-	/* Stall      */ -EPIPE,
-	/* DevNotResp */ -ETIMEDOUT,
-	/* PIDCheck   */ -EPROTO,
-	/* UnExpPID   */ -EPROTO,
-	/* DataOver   */ -EOVERFLOW,
-	/* DataUnder  */ -EREMOTEIO,
-	/* (for hw)   */ -EIO,
-	/* (for hw)   */ -EIO,
-	/* BufferOver */ -ECOMM,
-	/* BuffUnder  */ -ENOSR,
-	/* (for HCD)  */ -ENOSPC,
-	/* (for HCD)  */ -EALREADY
-};
-
-/* HCD data associated with a usb core URB */
-struct urb_priv {
-	struct urb *urb;
-	struct usb_host_endpoint *ep;
-	int active;
-	int state;
-	struct td *isoc_td;
-	int isoc_remaining;
-	int isoc_status;
-};
-
-/* HCD data associated with a usb core endpoint */
-struct ep_priv {
-	struct usb_host_endpoint *ep;
-	struct list_head td_list;
-	struct list_head queue;
-	int etd[NUM_ISO_ETDS];
-	int waiting_etd;
-};
-
-/* isoc packet */
-struct td {
-	struct list_head list;
-	struct urb *urb;
-	struct usb_host_endpoint *ep;
-	dma_addr_t dma_handle;
-	void *cpu_buffer;
-	int len;
-	int frame;
-	int isoc_index;
-};
-
-/* HCD data associated with a hardware ETD */
-struct etd_priv {
-	struct usb_host_endpoint *ep;
-	struct urb *urb;
-	struct td *td;
-	struct list_head queue;
-	dma_addr_t dma_handle;
-	void *cpu_buffer;
-	void *bounce_buffer;
-	int alloc;
-	int len;
-	int dmem_size;
-	int dmem_offset;
-	int active_count;
-#ifdef DEBUG
-	int activated_frame;
-	int disactivated_frame;
-	int last_int_frame;
-	int last_req_frame;
-	u32 submitted_dwords[4];
-#endif
-};
-
-/* Hardware data memory info */
-struct imx21_dmem_area {
-	struct usb_host_endpoint *ep;
-	unsigned int offset;
-	unsigned int size;
-	struct list_head list;
-};
-
-#ifdef DEBUG
-struct debug_usage_stats {
-	unsigned int value;
-	unsigned int maximum;
-};
-
-struct debug_stats {
-	unsigned long submitted;
-	unsigned long completed_ok;
-	unsigned long completed_failed;
-	unsigned long unlinked;
-	unsigned long queue_etd;
-	unsigned long queue_dmem;
-};
-
-struct debug_isoc_trace {
-	int schedule_frame;
-	int submit_frame;
-	int request_len;
-	int done_frame;
-	int done_len;
-	int cc;
-	struct td *td;
-};
-#endif
-
-/* HCD data structure */
-struct imx21 {
-	spinlock_t lock;
-	struct device *dev;
-	struct usb_hcd *hcd;
-	struct mx21_usbh_platform_data *pdata;
-	struct list_head dmem_list;
-	struct list_head queue_for_etd; /* eps queued due to etd shortage */
-	struct list_head queue_for_dmem; /* etds queued due to dmem shortage */
-	struct etd_priv etd[USB_NUM_ETD];
-	struct clk *clk;
-	void __iomem *regs;
-#ifdef DEBUG
-	struct dentry *debug_root;
-	struct debug_stats nonisoc_stats;
-	struct debug_stats isoc_stats;
-	struct debug_usage_stats etd_usage;
-	struct debug_usage_stats dmem_usage;
-	struct debug_isoc_trace isoc_trace[20];
-	struct debug_isoc_trace isoc_trace_failed[20];
-	unsigned long debug_unblocks;
-	int isoc_trace_index;
-	int isoc_trace_index_failed;
-#endif
-};
-
-#endif