* [PATCH v2 2/5] usb: musb: drop musb legacy drivers
2025-09-26 15:30 [PATCH v2 1/5] omap3: evm: Drop old musb omap3 driver Tom Rini
@ 2025-09-26 15:30 ` Tom Rini
2025-09-26 15:30 ` [PATCH v2 3/5] usb: gadget: Tighten the dependency for DWC2 OTG support Tom Rini
` (2 subsequent siblings)
3 siblings, 0 replies; 9+ messages in thread
From: Tom Rini @ 2025-09-26 15:30 UTC (permalink / raw)
To: u-boot; +Cc: Peter Robinson
From: Peter Robinson <pbrobinson@gmail.com>
The last of the users of the legacy musb drivers have been
migrated so now remove the old musb stack, all users should
now be using the new musb stack if they need this functionality.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
[trini: Remove a Makefile reference that was missed in v1]
Signed-off-by: Tom Rini <trini@konsulko.com>
---
Changes in v2:
- Remove a reference to the old musb code directory from the top-level
Makefile
---
Makefile | 1 -
drivers/usb/Kconfig | 2 -
drivers/usb/musb/Kconfig | 20 -
drivers/usb/musb/Makefile | 9 -
drivers/usb/musb/am35x.c | 138 ----
drivers/usb/musb/am35x.h | 81 ---
drivers/usb/musb/musb_core.c | 150 -----
drivers/usb/musb/musb_core.h | 343 ----------
drivers/usb/musb/musb_debug.h | 191 ------
drivers/usb/musb/musb_hcd.c | 1161 ---------------------------------
drivers/usb/musb/musb_hcd.h | 93 ---
drivers/usb/musb/musb_udc.c | 953 ---------------------------
drivers/usb/musb/omap3.c | 129 ----
drivers/usb/musb/omap3.h | 38 --
14 files changed, 3309 deletions(-)
delete mode 100644 drivers/usb/musb/Kconfig
delete mode 100644 drivers/usb/musb/Makefile
delete mode 100644 drivers/usb/musb/am35x.c
delete mode 100644 drivers/usb/musb/am35x.h
delete mode 100644 drivers/usb/musb/musb_core.c
delete mode 100644 drivers/usb/musb/musb_core.h
delete mode 100644 drivers/usb/musb/musb_debug.h
delete mode 100644 drivers/usb/musb/musb_hcd.c
delete mode 100644 drivers/usb/musb/musb_hcd.h
delete mode 100644 drivers/usb/musb/musb_udc.c
delete mode 100644 drivers/usb/musb/omap3.c
delete mode 100644 drivers/usb/musb/omap3.h
diff --git a/Makefile b/Makefile
index 0dc7da6ddac7..1697e95c0a06 100644
--- a/Makefile
+++ b/Makefile
@@ -1040,7 +1040,6 @@ libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
libs-y += drivers/usb/host/
libs-y += drivers/usb/mtu3/
-libs-y += drivers/usb/musb/
libs-y += drivers/usb/musb-new/
libs-y += drivers/usb/isp1760/
libs-y += drivers/usb/phy/
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index daf2240ffd92..93c5ee69b253 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -78,8 +78,6 @@ source "drivers/usb/dwc3/Kconfig"
source "drivers/usb/mtu3/Kconfig"
-source "drivers/usb/musb/Kconfig"
-
source "drivers/usb/musb-new/Kconfig"
source "drivers/usb/emul/Kconfig"
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
deleted file mode 100644
index 2508b6ed0d13..000000000000
--- a/drivers/usb/musb/Kconfig
+++ /dev/null
@@ -1,20 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0+
-#
-# (C) Copyright 2017
-# Adam Ford, Logic PD, aford173@gmail.com
-
-comment "Legacy MUSB Support"
-
-config USB_MUSB_HCD
- bool "Legacy MUSB Host Controller"
-
-config USB_MUSB_UDC
- bool "Legacy USB Device Controller"
-
-config USB_OMAP3
- bool "Legacy MUSB OMAP3 / OMAP4"
- depends on ARCH_OMAP2PLUS
-
-config USB_AM35X
- bool"Legacy MUSB AM35x"
- depends on ARCH_OMAP2PLUS && !USB_OMAP3
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
deleted file mode 100644
index 744f2cfaa294..000000000000
--- a/drivers/usb/musb/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0+
-#
-# (C) Copyright 2000-2007
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-
-obj-$(CONFIG_USB_MUSB_HCD) += musb_hcd.o musb_core.o
-obj-$(CONFIG_USB_MUSB_UDC) += musb_udc.o musb_core.o
-obj-$(CONFIG_USB_OMAP3) += omap3.o
-obj-$(CONFIG_USB_AM35X) += am35x.o
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
deleted file mode 100644
index 2c23043d40e9..000000000000
--- a/drivers/usb/musb/am35x.c
+++ /dev/null
@@ -1,138 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * am35x.c - TI's AM35x platform specific usb wrapper functions.
- *
- * Author: Ajay Kumar Gupta <ajay.gupta@ti.com>
- *
- * Based on drivers/usb/musb/da8xx.c
- *
- * Copyright (c) 2010 Texas Instruments Incorporated
- */
-
-#include <linux/delay.h>
-
-#include "am35x.h"
-
-/* MUSB platform configuration */
-struct musb_config musb_cfg = {
- .regs = (struct musb_regs *)AM35X_USB_OTG_CORE_BASE,
- .timeout = AM35X_USB_OTG_TIMEOUT,
- .musb_speed = 0,
-};
-
-/*
- * Enable the USB phy
- */
-static u8 phy_on(void)
-{
- u32 devconf2;
- u32 timeout;
-
- devconf2 = readl(&am35x_scm_general_regs->devconf2);
-
- devconf2 &= ~(DEVCONF2_RESET | DEVCONF2_PHYPWRDN | DEVCONF2_OTGPWRDN |
- DEVCONF2_OTGMODE | DEVCONF2_REFFREQ |
- DEVCONF2_PHY_GPIOMODE);
- devconf2 |= DEVCONF2_SESENDEN | DEVCONF2_VBDTCTEN | DEVCONF2_PHY_PLLON |
- DEVCONF2_REFFREQ_13MHZ | DEVCONF2_DATPOL;
-
- writel(devconf2, &am35x_scm_general_regs->devconf2);
-
- /* wait until the USB phy is turned on */
- timeout = musb_cfg.timeout;
- while (timeout--)
- if (readl(&am35x_scm_general_regs->devconf2) & DEVCONF2_PHYCKGD)
- return 1;
-
- /* USB phy was not turned on */
- return 0;
-}
-
-/*
- * Disable the USB phy
- */
-static void phy_off(void)
-{
- u32 devconf2;
-
- /*
- * Power down the on-chip PHY.
- */
- devconf2 = readl(&am35x_scm_general_regs->devconf2);
-
- devconf2 &= ~DEVCONF2_PHY_PLLON;
- devconf2 |= DEVCONF2_PHYPWRDN | DEVCONF2_OTGPWRDN;
- writel(devconf2, &am35x_scm_general_regs->devconf2);
-}
-
-/*
- * This function performs platform specific initialization for usb0.
- */
-int musb_platform_init(void)
-{
- u32 revision;
- u32 sw_reset;
-
- /* global usb reset */
- sw_reset = readl(&am35x_scm_general_regs->ip_sw_reset);
- sw_reset |= (1 << 0);
- writel(sw_reset, &am35x_scm_general_regs->ip_sw_reset);
- sw_reset &= ~(1 << 0);
- writel(sw_reset, &am35x_scm_general_regs->ip_sw_reset);
-
- /* reset the controller */
- writel(0x1, &am35x_usb_regs->control);
- udelay(5000);
-
- /* start the on-chip usb phy and its pll */
- if (phy_on() == 0)
- return -1;
-
- /* Returns zero if e.g. not clocked */
- revision = readl(&am35x_usb_regs->revision);
- if (revision == 0)
- return -1;
-
- return 0;
-}
-
-/*
- * This function performs platform specific deinitialization for usb0.
- */
-void musb_platform_deinit(void)
-{
- /* Turn off the phy */
- phy_off();
-}
-
-/*
- * This function reads data from endpoint fifo for AM35x
- * which supports only 32bit read operation.
- *
- * ep - endpoint number
- * length - number of bytes to read from FIFO
- * fifo_data - pointer to data buffer into which data is read
- */
-__attribute__((weak))
-void read_fifo(u8 ep, u32 length, void *fifo_data)
-{
- u8 *data = (u8 *)fifo_data;
- u32 val;
- int i;
-
- /* select the endpoint index */
- writeb(ep, &musbr->index);
-
- if (length > 4) {
- for (i = 0; i < (length >> 2); i++) {
- val = readl(&musbr->fifox[ep]);
- memcpy(data, &val, 4);
- data += 4;
- }
- length %= 4;
- }
- if (length > 0) {
- val = readl(&musbr->fifox[ep]);
- memcpy(data, &val, length);
- }
-}
diff --git a/drivers/usb/musb/am35x.h b/drivers/usb/musb/am35x.h
deleted file mode 100644
index 82ad94329cb7..000000000000
--- a/drivers/usb/musb/am35x.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * am35x.h - TI's AM35x platform specific usb wrapper definitions.
- *
- * Author: Ajay Kumar Gupta <ajay.gupta@ti.com>
- *
- * Based on drivers/usb/musb/da8xx.h
- *
- * Copyright (c) 2010 Texas Instruments Incorporated
- */
-
-#ifndef __AM35X_USB_H__
-#define __AM35X_USB_H__
-
-#include <asm/arch/am35x_def.h>
-#include "musb_core.h"
-
-/* Base address of musb wrapper */
-#define AM35X_USB_OTG_BASE 0x5C040000
-
-/* Base address of musb core */
-#define AM35X_USB_OTG_CORE_BASE (AM35X_USB_OTG_BASE + 0x400)
-
-/* Timeout for AM35x usb module */
-#define AM35X_USB_OTG_TIMEOUT 0x3FFFFFF
-
-/*
- * AM35x platform USB wrapper register overlay.
- */
-struct am35x_usb_regs {
- u32 revision;
- u32 control;
- u32 status;
- u32 emulation;
- u32 reserved0[1];
- u32 autoreq;
- u32 srpfixtime;
- u32 ep_intsrc;
- u32 ep_intsrcset;
- u32 ep_intsrcclr;
- u32 ep_intmsk;
- u32 ep_intmskset;
- u32 ep_intmskclr;
- u32 ep_intsrcmsked;
- u32 reserved1[1];
- u32 core_intsrc;
- u32 core_intsrcset;
- u32 core_intsrcclr;
- u32 core_intmsk;
- u32 core_intmskset;
- u32 core_intmskclr;
- u32 core_intsrcmsked;
- u32 reserved2[1];
- u32 eoi;
- u32 mop_sop_en;
- u32 reserved3[2];
- u32 txmode;
- u32 rxmode;
- u32 epcount_mode;
-};
-
-#define am35x_usb_regs ((struct am35x_usb_regs *)AM35X_USB_OTG_BASE)
-
-/* USB 2.0 PHY Control */
-#define DEVCONF2_PHY_GPIOMODE (1 << 23)
-#define DEVCONF2_OTGMODE (3 << 14)
-#define DEVCONF2_SESENDEN (1 << 13) /* Vsess_end comparator */
-#define DEVCONF2_VBDTCTEN (1 << 12) /* Vbus comparator */
-#define DEVCONF2_REFFREQ_24MHZ (2 << 8)
-#define DEVCONF2_REFFREQ_26MHZ (7 << 8)
-#define DEVCONF2_REFFREQ_13MHZ (6 << 8)
-#define DEVCONF2_REFFREQ (0xf << 8)
-#define DEVCONF2_PHYCKGD (1 << 7)
-#define DEVCONF2_VBUSSENSE (1 << 6)
-#define DEVCONF2_PHY_PLLON (1 << 5) /* override PLL suspend */
-#define DEVCONF2_RESET (1 << 4)
-#define DEVCONF2_PHYPWRDN (1 << 3)
-#define DEVCONF2_OTGPWRDN (1 << 2)
-#define DEVCONF2_DATPOL (1 << 1)
-
-#endif /* __AM35X_USB_H__ */
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
deleted file mode 100644
index 260552e4dbd4..000000000000
--- a/drivers/usb/musb/musb_core.c
+++ /dev/null
@@ -1,150 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Mentor USB OTG Core functionality common for both Host and Device
- * functionality.
- *
- * Copyright (c) 2008 Texas Instruments
- *
- * Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
- */
-
-#include <linux/bitops.h>
-
-#include "musb_core.h"
-struct musb_regs *musbr;
-
-/*
- * program the mentor core to start (enable interrupts, dma, etc.)
- */
-void musb_start(void)
-{
-#if defined(CONFIG_USB_MUSB_HCD)
- u8 devctl;
- u8 busctl;
-#endif
-
- /* disable all interrupts */
- writew(0, &musbr->intrtxe);
- writew(0, &musbr->intrrxe);
- writeb(0, &musbr->intrusbe);
- writeb(0, &musbr->testmode);
-
- /* put into basic highspeed mode and start session */
- writeb(MUSB_POWER_HSENAB, &musbr->power);
-#if defined(CONFIG_USB_MUSB_HCD)
- /* Program PHY to use EXT VBUS if required */
- if (musb_cfg.extvbus == 1) {
- busctl = musb_read_ulpi_buscontrol(musbr);
- musb_write_ulpi_buscontrol(musbr, busctl | ULPI_USE_EXTVBUS);
- }
-
- devctl = readb(&musbr->devctl);
- writeb(devctl | MUSB_DEVCTL_SESSION, &musbr->devctl);
-#endif
-}
-
-#ifdef MUSB_NO_DYNAMIC_FIFO
-# define config_fifo(dir, idx, addr)
-#else
-# define config_fifo(dir, idx, addr) \
- do { \
- writeb(idx, &musbr->dir##fifosz); \
- writew(addr, &musbr->dir##fifoadd); \
- } while (0)
-#endif
-
-/*
- * This function configures the endpoint configuration. The musb hcd or musb
- * device implementation can use this function to configure the endpoints
- * and set the FIFO sizes. Note: The summation of FIFO sizes of all endpoints
- * should not be more than the available FIFO size.
- *
- * epinfo - Pointer to EP configuration table
- * cnt - Number of entries in the EP conf table.
- */
-void musb_configure_ep(const struct musb_epinfo *epinfo, u8 cnt)
-{
- u16 csr;
- u16 fifoaddr = 64 >> 3; /* First 64 bytes of FIFO reserved for EP0 */
- u32 fifosize;
- u8 idx;
-
- while (cnt--) {
- /* prepare fifosize to write to register */
- fifosize = epinfo->epsize >> 3;
- idx = fifosize ? ((ffs(fifosize) - 1) & 0xF) : 0;
-
- writeb(epinfo->epnum, &musbr->index);
- if (epinfo->epdir) {
- /* Configure fifo size and fifo base address */
- config_fifo(tx, idx, fifoaddr);
-
- csr = readw(&musbr->txcsr);
- /* clear the data toggle bit */
- writew(csr | MUSB_TXCSR_CLRDATATOG, &musbr->txcsr);
- /* Flush fifo if required */
- if (csr & MUSB_TXCSR_TXPKTRDY)
- writew(csr | MUSB_TXCSR_FLUSHFIFO,
- &musbr->txcsr);
- } else {
- /* Configure fifo size and fifo base address */
- config_fifo(rx, idx, fifoaddr);
-
- csr = readw(&musbr->rxcsr);
- /* clear the data toggle bit */
- writew(csr | MUSB_RXCSR_CLRDATATOG, &musbr->rxcsr);
- /* Flush fifo if required */
- if (csr & MUSB_RXCSR_RXPKTRDY)
- writew(csr | MUSB_RXCSR_FLUSHFIFO,
- &musbr->rxcsr);
- }
- fifoaddr += 1 << idx;
- epinfo++;
- }
-}
-
-/*
- * This function writes data to endpoint fifo
- *
- * ep - endpoint number
- * length - number of bytes to write to FIFO
- * fifo_data - Pointer to data buffer that contains the data to write
- */
-__attribute__((weak))
-void write_fifo(u8 ep, u32 length, void *fifo_data)
-{
- u8 *data = (u8 *)fifo_data;
-
- /* select the endpoint index */
- writeb(ep, &musbr->index);
-
- /* write the data to the fifo */
- while (length--)
- writeb(*data++, &musbr->fifox[ep]);
-}
-
-/*
- * AM35x supports only 32bit read operations so
- * use seperate read_fifo() function for it.
- */
-#ifndef CONFIG_USB_AM35X
-/*
- * This function reads data from endpoint fifo
- *
- * ep - endpoint number
- * length - number of bytes to read from FIFO
- * fifo_data - pointer to data buffer into which data is read
- */
-__attribute__((weak))
-void read_fifo(u8 ep, u32 length, void *fifo_data)
-{
- u8 *data = (u8 *)fifo_data;
-
- /* select the endpoint index */
- writeb(ep, &musbr->index);
-
- /* read the data to the fifo */
- while (length--)
- *data++ = readb(&musbr->fifox[ep]);
-}
-#endif /* CONFIG_USB_AM35X */
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
deleted file mode 100644
index 47b839c08353..000000000000
--- a/drivers/usb/musb/musb_core.h
+++ /dev/null
@@ -1,343 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/******************************************************************
- * Copyright 2008 Mentor Graphics Corporation
- * Copyright (C) 2008 by Texas Instruments
- *
- * This file is part of the Inventra Controller Driver for Linux.
- ******************************************************************/
-
-#ifndef __MUSB_HDRC_DEFS_H__
-#define __MUSB_HDRC_DEFS_H__
-
-#include <usb_defs.h>
-#include <asm/io.h>
-
-#define MUSB_EP0_FIFOSIZE 64 /* This is non-configurable */
-
-/* EP0 */
-struct musb_ep0_regs {
- u16 reserved4;
- u16 csr0;
- u16 reserved5;
- u16 reserved6;
- u16 count0;
- u8 host_type0;
- u8 host_naklimit0;
- u8 reserved7;
- u8 reserved8;
- u8 reserved9;
- u8 configdata;
-};
-
-/* EP 1-15 */
-struct musb_epN_regs {
- u16 txmaxp;
- u16 txcsr;
- u16 rxmaxp;
- u16 rxcsr;
- u16 rxcount;
- u8 txtype;
- u8 txinterval;
- u8 rxtype;
- u8 rxinterval;
- u8 reserved0;
- u8 fifosize;
-};
-
-/* Mentor USB core register overlay structure */
-#ifndef musb_regs
-struct musb_regs {
- /* common registers */
- u8 faddr;
- u8 power;
- u16 intrtx;
- u16 intrrx;
- u16 intrtxe;
- u16 intrrxe;
- u8 intrusb;
- u8 intrusbe;
- u16 frame;
- u8 index;
- u8 testmode;
- /* indexed registers */
- u16 txmaxp;
- u16 txcsr;
- u16 rxmaxp;
- u16 rxcsr;
- u16 rxcount;
- u8 txtype;
- u8 txinterval;
- u8 rxtype;
- u8 rxinterval;
- u8 reserved0;
- u8 fifosize;
- /* fifo */
- u32 fifox[16];
- /* OTG, dynamic FIFO, version & vendor registers */
- u8 devctl;
- u8 reserved1;
- u8 txfifosz;
- u8 rxfifosz;
- u16 txfifoadd;
- u16 rxfifoadd;
- u32 vcontrol;
- u16 hwvers;
- u16 reserved2a[1];
- u8 ulpi_busctl;
- u8 reserved2b[1];
- u16 reserved2[3];
- u8 epinfo;
- u8 raminfo;
- u8 linkinfo;
- u8 vplen;
- u8 hseof1;
- u8 fseof1;
- u8 lseof1;
- u8 reserved3;
- /* target address registers */
- struct musb_tar_regs {
- u8 txfuncaddr;
- u8 reserved0;
- u8 txhubaddr;
- u8 txhubport;
- u8 rxfuncaddr;
- u8 reserved1;
- u8 rxhubaddr;
- u8 rxhubport;
- } tar[16];
- /*
- * endpoint registers
- * ep0 elements are valid when array index is 0
- * otherwise epN is valid
- */
- union musb_ep_regs {
- struct musb_ep0_regs ep0;
- struct musb_epN_regs epN;
- } ep[16];
-
-} __attribute__((packed));
-#endif
-
-/*
- * MUSB Register bits
- */
-
-/* POWER */
-#define MUSB_POWER_ISOUPDATE 0x80
-#define MUSB_POWER_SOFTCONN 0x40
-#define MUSB_POWER_HSENAB 0x20
-#define MUSB_POWER_HSMODE 0x10
-#define MUSB_POWER_RESET 0x08
-#define MUSB_POWER_RESUME 0x04
-#define MUSB_POWER_SUSPENDM 0x02
-#define MUSB_POWER_ENSUSPEND 0x01
-#define MUSB_POWER_HSMODE_SHIFT 4
-
-/* INTRUSB */
-#define MUSB_INTR_SUSPEND 0x01
-#define MUSB_INTR_RESUME 0x02
-#define MUSB_INTR_RESET 0x04
-#define MUSB_INTR_BABBLE 0x04
-#define MUSB_INTR_SOF 0x08
-#define MUSB_INTR_CONNECT 0x10
-#define MUSB_INTR_DISCONNECT 0x20
-#define MUSB_INTR_SESSREQ 0x40
-#define MUSB_INTR_VBUSERROR 0x80 /* For SESSION end */
-
-/* DEVCTL */
-#define MUSB_DEVCTL_BDEVICE 0x80
-#define MUSB_DEVCTL_FSDEV 0x40
-#define MUSB_DEVCTL_LSDEV 0x20
-#define MUSB_DEVCTL_VBUS 0x18
-#define MUSB_DEVCTL_VBUS_SHIFT 3
-#define MUSB_DEVCTL_HM 0x04
-#define MUSB_DEVCTL_HR 0x02
-#define MUSB_DEVCTL_SESSION 0x01
-
-/* ULPI VBUSCONTROL */
-#define ULPI_USE_EXTVBUS 0x01
-#define ULPI_USE_EXTVBUSIND 0x02
-
-/* TESTMODE */
-#define MUSB_TEST_FORCE_HOST 0x80
-#define MUSB_TEST_FIFO_ACCESS 0x40
-#define MUSB_TEST_FORCE_FS 0x20
-#define MUSB_TEST_FORCE_HS 0x10
-#define MUSB_TEST_PACKET 0x08
-#define MUSB_TEST_K 0x04
-#define MUSB_TEST_J 0x02
-#define MUSB_TEST_SE0_NAK 0x01
-
-/* Allocate for double-packet buffering (effectively doubles assigned _SIZE) */
-#define MUSB_FIFOSZ_DPB 0x10
-/* Allocation size (8, 16, 32, ... 4096) */
-#define MUSB_FIFOSZ_SIZE 0x0f
-
-/* CSR0 */
-#define MUSB_CSR0_FLUSHFIFO 0x0100
-#define MUSB_CSR0_TXPKTRDY 0x0002
-#define MUSB_CSR0_RXPKTRDY 0x0001
-
-/* CSR0 in Peripheral mode */
-#define MUSB_CSR0_P_SVDSETUPEND 0x0080
-#define MUSB_CSR0_P_SVDRXPKTRDY 0x0040
-#define MUSB_CSR0_P_SENDSTALL 0x0020
-#define MUSB_CSR0_P_SETUPEND 0x0010
-#define MUSB_CSR0_P_DATAEND 0x0008
-#define MUSB_CSR0_P_SENTSTALL 0x0004
-
-/* CSR0 in Host mode */
-#define MUSB_CSR0_H_DIS_PING 0x0800
-#define MUSB_CSR0_H_WR_DATATOGGLE 0x0400 /* Set to allow setting: */
-#define MUSB_CSR0_H_DATATOGGLE 0x0200 /* Data toggle control */
-#define MUSB_CSR0_H_NAKTIMEOUT 0x0080
-#define MUSB_CSR0_H_STATUSPKT 0x0040
-#define MUSB_CSR0_H_REQPKT 0x0020
-#define MUSB_CSR0_H_ERROR 0x0010
-#define MUSB_CSR0_H_SETUPPKT 0x0008
-#define MUSB_CSR0_H_RXSTALL 0x0004
-
-/* CSR0 bits to avoid zeroing (write zero clears, write 1 ignored) */
-#define MUSB_CSR0_P_WZC_BITS \
- (MUSB_CSR0_P_SENTSTALL)
-#define MUSB_CSR0_H_WZC_BITS \
- (MUSB_CSR0_H_NAKTIMEOUT | MUSB_CSR0_H_RXSTALL \
- | MUSB_CSR0_RXPKTRDY)
-
-/* TxType/RxType */
-#define MUSB_TYPE_SPEED 0xc0
-#define MUSB_TYPE_SPEED_SHIFT 6
-#define MUSB_TYPE_SPEED_HIGH 1
-#define MUSB_TYPE_SPEED_FULL 2
-#define MUSB_TYPE_SPEED_LOW 3
-#define MUSB_TYPE_PROTO 0x30 /* Implicitly zero for ep0 */
-#define MUSB_TYPE_PROTO_SHIFT 4
-#define MUSB_TYPE_REMOTE_END 0xf /* Implicitly zero for ep0 */
-#define MUSB_TYPE_PROTO_BULK 2
-#define MUSB_TYPE_PROTO_INTR 3
-
-/* CONFIGDATA */
-#define MUSB_CONFIGDATA_MPRXE 0x80 /* Auto bulk pkt combining */
-#define MUSB_CONFIGDATA_MPTXE 0x40 /* Auto bulk pkt splitting */
-#define MUSB_CONFIGDATA_BIGENDIAN 0x20
-#define MUSB_CONFIGDATA_HBRXE 0x10 /* HB-ISO for RX */
-#define MUSB_CONFIGDATA_HBTXE 0x08 /* HB-ISO for TX */
-#define MUSB_CONFIGDATA_DYNFIFO 0x04 /* Dynamic FIFO sizing */
-#define MUSB_CONFIGDATA_SOFTCONE 0x02 /* SoftConnect */
-#define MUSB_CONFIGDATA_UTMIDW 0x01 /* Data width 0/1 => 8/16bits */
-
-/* TXCSR in Peripheral and Host mode */
-#define MUSB_TXCSR_AUTOSET 0x8000
-#define MUSB_TXCSR_MODE 0x2000
-#define MUSB_TXCSR_DMAENAB 0x1000
-#define MUSB_TXCSR_FRCDATATOG 0x0800
-#define MUSB_TXCSR_DMAMODE 0x0400
-#define MUSB_TXCSR_CLRDATATOG 0x0040
-#define MUSB_TXCSR_FLUSHFIFO 0x0008
-#define MUSB_TXCSR_FIFONOTEMPTY 0x0002
-#define MUSB_TXCSR_TXPKTRDY 0x0001
-
-/* TXCSR in Peripheral mode */
-#define MUSB_TXCSR_P_ISO 0x4000
-#define MUSB_TXCSR_P_INCOMPTX 0x0080
-#define MUSB_TXCSR_P_SENTSTALL 0x0020
-#define MUSB_TXCSR_P_SENDSTALL 0x0010
-#define MUSB_TXCSR_P_UNDERRUN 0x0004
-
-/* TXCSR in Host mode */
-#define MUSB_TXCSR_H_WR_DATATOGGLE 0x0200
-#define MUSB_TXCSR_H_DATATOGGLE 0x0100
-#define MUSB_TXCSR_H_NAKTIMEOUT 0x0080
-#define MUSB_TXCSR_H_RXSTALL 0x0020
-#define MUSB_TXCSR_H_ERROR 0x0004
-#define MUSB_TXCSR_H_DATATOGGLE_SHIFT 8
-
-/* TXCSR bits to avoid zeroing (write zero clears, write 1 ignored) */
-#define MUSB_TXCSR_P_WZC_BITS \
- (MUSB_TXCSR_P_INCOMPTX | MUSB_TXCSR_P_SENTSTALL \
- | MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_FIFONOTEMPTY)
-#define MUSB_TXCSR_H_WZC_BITS \
- (MUSB_TXCSR_H_NAKTIMEOUT | MUSB_TXCSR_H_RXSTALL \
- | MUSB_TXCSR_H_ERROR | MUSB_TXCSR_FIFONOTEMPTY)
-
-/* RXCSR in Peripheral and Host mode */
-#define MUSB_RXCSR_AUTOCLEAR 0x8000
-#define MUSB_RXCSR_DMAENAB 0x2000
-#define MUSB_RXCSR_DISNYET 0x1000
-#define MUSB_RXCSR_PID_ERR 0x1000
-#define MUSB_RXCSR_DMAMODE 0x0800
-#define MUSB_RXCSR_INCOMPRX 0x0100
-#define MUSB_RXCSR_CLRDATATOG 0x0080
-#define MUSB_RXCSR_FLUSHFIFO 0x0010
-#define MUSB_RXCSR_DATAERROR 0x0008
-#define MUSB_RXCSR_FIFOFULL 0x0002
-#define MUSB_RXCSR_RXPKTRDY 0x0001
-
-/* RXCSR in Peripheral mode */
-#define MUSB_RXCSR_P_ISO 0x4000
-#define MUSB_RXCSR_P_SENTSTALL 0x0040
-#define MUSB_RXCSR_P_SENDSTALL 0x0020
-#define MUSB_RXCSR_P_OVERRUN 0x0004
-
-/* RXCSR in Host mode */
-#define MUSB_RXCSR_H_AUTOREQ 0x4000
-#define MUSB_RXCSR_H_WR_DATATOGGLE 0x0400
-#define MUSB_RXCSR_H_DATATOGGLE 0x0200
-#define MUSB_RXCSR_H_RXSTALL 0x0040
-#define MUSB_RXCSR_H_REQPKT 0x0020
-#define MUSB_RXCSR_H_ERROR 0x0004
-#define MUSB_S_RXCSR_H_DATATOGGLE 9
-
-/* RXCSR bits to avoid zeroing (write zero clears, write 1 ignored) */
-#define MUSB_RXCSR_P_WZC_BITS \
- (MUSB_RXCSR_P_SENTSTALL | MUSB_RXCSR_P_OVERRUN \
- | MUSB_RXCSR_RXPKTRDY)
-#define MUSB_RXCSR_H_WZC_BITS \
- (MUSB_RXCSR_H_RXSTALL | MUSB_RXCSR_H_ERROR \
- | MUSB_RXCSR_DATAERROR | MUSB_RXCSR_RXPKTRDY)
-
-/* HUBADDR */
-#define MUSB_HUBADDR_MULTI_TT 0x80
-
-/* Endpoint configuration information. Note: The value of endpoint fifo size
- * element should be either 8,16,32,64,128,256,512,1024,2048 or 4096. Other
- * values are not supported
- */
-struct musb_epinfo {
- u8 epnum; /* endpoint number */
- u8 epdir; /* endpoint direction */
- u16 epsize; /* endpoint FIFO size */
-};
-
-/*
- * Platform specific MUSB configuration. Any platform using the musb
- * functionality should create one instance of this structure in the
- * platform specific file.
- */
-struct musb_config {
- struct musb_regs *regs;
- u32 timeout;
- u8 musb_speed;
- u8 extvbus;
-};
-
-/* externally defined data */
-extern struct musb_config musb_cfg;
-extern struct musb_regs *musbr;
-
-/* exported functions */
-extern void musb_start(void);
-extern void musb_configure_ep(const struct musb_epinfo *epinfo, u8 cnt);
-extern void write_fifo(u8 ep, u32 length, void *fifo_data);
-extern void read_fifo(u8 ep, u32 length, void *fifo_data);
-
-static inline u8 musb_read_ulpi_buscontrol(struct musb_regs *musbr)
-{
- return readb(&musbr->ulpi_busctl);
-}
-static inline void musb_write_ulpi_buscontrol(struct musb_regs *musbr, u8 val)
-{
- writeb(val, &musbr->ulpi_busctl);
-}
-
-#endif /* __MUSB_HDRC_DEFS_H__ */
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
deleted file mode 100644
index 2c5e192ab217..000000000000
--- a/drivers/usb/musb/musb_debug.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (c) 2009 Wind River Systems, Inc.
- * Tom Rix <Tom.Rix@windriver.com>
- */
-
-/* Define MUSB_DEBUG before including this file to get debug macros */
-#ifdef MUSB_DEBUG
-
-#define MUSB_FLAGS_PRINT(v, x, y) \
- if (((v) & MUSB_##x##_##y)) \
- serial_printf("\t\t"#y"\n")
-
-static inline void musb_print_pwr(u8 b)
-{
- serial_printf("\tpower 0x%2.2x\n", b);
- MUSB_FLAGS_PRINT(b, POWER, ISOUPDATE);
- MUSB_FLAGS_PRINT(b, POWER, SOFTCONN);
- MUSB_FLAGS_PRINT(b, POWER, HSENAB);
- MUSB_FLAGS_PRINT(b, POWER, HSMODE);
- MUSB_FLAGS_PRINT(b, POWER, RESET);
- MUSB_FLAGS_PRINT(b, POWER, RESUME);
- MUSB_FLAGS_PRINT(b, POWER, SUSPENDM);
- MUSB_FLAGS_PRINT(b, POWER, ENSUSPEND);
-}
-
-static inline void musb_print_csr0(u16 w)
-{
- serial_printf("\tcsr0 0x%4.4x\n", w);
- MUSB_FLAGS_PRINT(w, CSR0, FLUSHFIFO);
- MUSB_FLAGS_PRINT(w, CSR0_P, SVDSETUPEND);
- MUSB_FLAGS_PRINT(w, CSR0_P, SVDRXPKTRDY);
- MUSB_FLAGS_PRINT(w, CSR0_P, SENDSTALL);
- MUSB_FLAGS_PRINT(w, CSR0_P, SETUPEND);
- MUSB_FLAGS_PRINT(w, CSR0_P, DATAEND);
- MUSB_FLAGS_PRINT(w, CSR0_P, SENTSTALL);
- MUSB_FLAGS_PRINT(w, CSR0, TXPKTRDY);
- MUSB_FLAGS_PRINT(w, CSR0, RXPKTRDY);
-}
-
-static inline void musb_print_intrusb(u8 b)
-{
- serial_printf("\tintrusb 0x%2.2x\n", b);
- MUSB_FLAGS_PRINT(b, INTR, VBUSERROR);
- MUSB_FLAGS_PRINT(b, INTR, SESSREQ);
- MUSB_FLAGS_PRINT(b, INTR, DISCONNECT);
- MUSB_FLAGS_PRINT(b, INTR, CONNECT);
- MUSB_FLAGS_PRINT(b, INTR, SOF);
- MUSB_FLAGS_PRINT(b, INTR, RESUME);
- MUSB_FLAGS_PRINT(b, INTR, SUSPEND);
-
- if (b & MUSB_INTR_BABBLE)
- serial_printf("\t\tMUSB_INTR_RESET or MUSB_INTR_BABBLE\n");
-
-}
-
-static inline void musb_print_intrtx(u16 w)
-{
- serial_printf("\tintrtx 0x%4.4x\n", w);
-}
-
-static inline void musb_print_intrrx(u16 w)
-{
- serial_printf("\tintrx 0x%4.4x\n", w);
-}
-
-static inline void musb_print_devctl(u8 b)
-{
- serial_printf("\tdevctl 0x%2.2x\n", b);
- if (b & MUSB_DEVCTL_BDEVICE)
- serial_printf("\t\tB device\n");
- else
- serial_printf("\t\tA device\n");
- if (b & MUSB_DEVCTL_FSDEV)
- serial_printf("\t\tFast Device -(host mode)\n");
- if (b & MUSB_DEVCTL_LSDEV)
- serial_printf("\t\tSlow Device -(host mode)\n");
- if (b & MUSB_DEVCTL_HM)
- serial_printf("\t\tHost mode\n");
- else
- serial_printf("\t\tPeripherial mode\n");
- if (b & MUSB_DEVCTL_HR)
- serial_printf("\t\tHost request started(B device)\n");
- else
- serial_printf("\t\tHost request finished(B device)\n");
- if (b & MUSB_DEVCTL_BDEVICE) {
- if (b & MUSB_DEVCTL_SESSION)
- serial_printf("\t\tStart of session(B device)\n");
- else
- serial_printf("\t\tEnd of session(B device)\n");
- } else {
- if (b & MUSB_DEVCTL_SESSION)
- serial_printf("\t\tStart of session(A device)\n");
- else
- serial_printf("\t\tEnd of session(A device)\n");
- }
-}
-
-static inline void musb_print_config(u8 b)
-{
- serial_printf("\tconfig 0x%2.2x\n", b);
- if (b & MUSB_CONFIGDATA_MPRXE)
- serial_printf("\t\tAuto combine rx bulk packets\n");
- if (b & MUSB_CONFIGDATA_MPTXE)
- serial_printf("\t\tAuto split tx bulk packets\n");
- if (b & MUSB_CONFIGDATA_BIGENDIAN)
- serial_printf("\t\tBig Endian ordering\n");
- else
- serial_printf("\t\tLittle Endian ordering\n");
- if (b & MUSB_CONFIGDATA_HBRXE)
- serial_printf("\t\tHigh speed rx iso endpoint\n");
- if (b & MUSB_CONFIGDATA_HBTXE)
- serial_printf("\t\tHigh speed tx iso endpoint\n");
- if (b & MUSB_CONFIGDATA_DYNFIFO)
- serial_printf("\t\tDynamic fifo sizing\n");
- if (b & MUSB_CONFIGDATA_SOFTCONE)
- serial_printf("\t\tSoft Connect\n");
- if (b & MUSB_CONFIGDATA_UTMIDW)
- serial_printf("\t\t16 bit data width\n");
- else
- serial_printf("\t\t8 bit data width\n");
-}
-
-static inline void musb_print_rxmaxp(u16 w)
-{
- serial_printf("\trxmaxp 0x%4.4x\n", w);
-}
-
-static inline void musb_print_rxcsr(u16 w)
-{
- serial_printf("\trxcsr 0x%4.4x\n", w);
- MUSB_FLAGS_PRINT(w, RXCSR, AUTOCLEAR);
- MUSB_FLAGS_PRINT(w, RXCSR, DMAENAB);
- MUSB_FLAGS_PRINT(w, RXCSR, DISNYET);
- MUSB_FLAGS_PRINT(w, RXCSR, PID_ERR);
- MUSB_FLAGS_PRINT(w, RXCSR, DMAMODE);
- MUSB_FLAGS_PRINT(w, RXCSR, CLRDATATOG);
- MUSB_FLAGS_PRINT(w, RXCSR, FLUSHFIFO);
- MUSB_FLAGS_PRINT(w, RXCSR, DATAERROR);
- MUSB_FLAGS_PRINT(w, RXCSR, FIFOFULL);
- MUSB_FLAGS_PRINT(w, RXCSR, RXPKTRDY);
- MUSB_FLAGS_PRINT(w, RXCSR_P, SENTSTALL);
- MUSB_FLAGS_PRINT(w, RXCSR_P, SENDSTALL);
- MUSB_FLAGS_PRINT(w, RXCSR_P, OVERRUN);
-
- if (w & MUSB_RXCSR_P_ISO)
- serial_printf("\t\tiso mode\n");
- else
- serial_printf("\t\tbulk mode\n");
-
-}
-
-static inline void musb_print_txmaxp(u16 w)
-{
- serial_printf("\ttxmaxp 0x%4.4x\n", w);
-}
-
-static inline void musb_print_txcsr(u16 w)
-{
- serial_printf("\ttxcsr 0x%4.4x\n", w);
- MUSB_FLAGS_PRINT(w, TXCSR, TXPKTRDY);
- MUSB_FLAGS_PRINT(w, TXCSR, FIFONOTEMPTY);
- MUSB_FLAGS_PRINT(w, TXCSR, FLUSHFIFO);
- MUSB_FLAGS_PRINT(w, TXCSR, CLRDATATOG);
- MUSB_FLAGS_PRINT(w, TXCSR_P, UNDERRUN);
- MUSB_FLAGS_PRINT(w, TXCSR_P, SENTSTALL);
- MUSB_FLAGS_PRINT(w, TXCSR_P, SENDSTALL);
-
- if (w & MUSB_TXCSR_MODE)
- serial_printf("\t\tTX mode\n");
- else
- serial_printf("\t\tRX mode\n");
-}
-
-#else
-
-/* stubs */
-
-#define musb_print_pwr(b)
-#define musb_print_csr0(w)
-#define musb_print_intrusb(b)
-#define musb_print_intrtx(w)
-#define musb_print_intrrx(w)
-#define musb_print_devctl(b)
-#define musb_print_config(b)
-#define musb_print_rxmaxp(w)
-#define musb_print_rxcsr(w)
-#define musb_print_txmaxp(w)
-#define musb_print_txcsr(w)
-
-#endif /* MUSB_DEBUG */
diff --git a/drivers/usb/musb/musb_hcd.c b/drivers/usb/musb/musb_hcd.c
deleted file mode 100644
index c95c6a482812..000000000000
--- a/drivers/usb/musb/musb_hcd.c
+++ /dev/null
@@ -1,1161 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Mentor USB OTG Core host controller driver.
- *
- * Copyright (c) 2008 Texas Instruments
- *
- * Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
- */
-
-#include <log.h>
-#include <usb.h>
-#include <linux/delay.h>
-#include "musb_hcd.h"
-
-/* MSC control transfers */
-#define USB_MSC_BBB_RESET 0xFF
-#define USB_MSC_BBB_GET_MAX_LUN 0xFE
-
-/* Endpoint configuration information */
-static const struct musb_epinfo epinfo[3] = {
- {MUSB_BULK_EP, 1, 512}, /* EP1 - Bluk Out - 512 Bytes */
- {MUSB_BULK_EP, 0, 512}, /* EP1 - Bluk In - 512 Bytes */
- {MUSB_INTR_EP, 0, 64} /* EP2 - Interrupt IN - 64 Bytes */
-};
-
-/* --- Virtual Root Hub ---------------------------------------------------- */
-#ifdef MUSB_NO_MULTIPOINT
-static int rh_devnum;
-static u32 port_status;
-
-#include <usbroothubdes.h>
-
-#endif
-
-/*
- * This function writes the data toggle value.
- */
-static void write_toggle(struct usb_device *dev, u8 ep, u8 dir_out)
-{
- u16 toggle = usb_gettoggle(dev, ep, dir_out);
- u16 csr;
-
- if (dir_out) {
- csr = readw(&musbr->txcsr);
- if (!toggle) {
- if (csr & MUSB_TXCSR_MODE)
- csr = MUSB_TXCSR_CLRDATATOG;
- else
- csr = 0;
- writew(csr, &musbr->txcsr);
- } else {
- csr |= MUSB_TXCSR_H_WR_DATATOGGLE;
- writew(csr, &musbr->txcsr);
- csr |= (toggle << MUSB_TXCSR_H_DATATOGGLE_SHIFT);
- writew(csr, &musbr->txcsr);
- }
- } else {
- if (!toggle) {
- csr = readw(&musbr->txcsr);
- if (csr & MUSB_TXCSR_MODE)
- csr = MUSB_RXCSR_CLRDATATOG;
- else
- csr = 0;
- writew(csr, &musbr->rxcsr);
- } else {
- csr = readw(&musbr->rxcsr);
- csr |= MUSB_RXCSR_H_WR_DATATOGGLE;
- writew(csr, &musbr->rxcsr);
- csr |= (toggle << MUSB_S_RXCSR_H_DATATOGGLE);
- writew(csr, &musbr->rxcsr);
- }
- }
-}
-
-/*
- * This function checks if RxStall has occurred on the endpoint. If a RxStall
- * has occurred, the RxStall is cleared and 1 is returned. If RxStall has
- * not occurred, 0 is returned.
- */
-static u8 check_stall(u8 ep, u8 dir_out)
-{
- u16 csr;
-
- /* For endpoint 0 */
- if (!ep) {
- csr = readw(&musbr->txcsr);
- if (csr & MUSB_CSR0_H_RXSTALL) {
- csr &= ~MUSB_CSR0_H_RXSTALL;
- writew(csr, &musbr->txcsr);
- return 1;
- }
- } else { /* For non-ep0 */
- if (dir_out) { /* is it tx ep */
- csr = readw(&musbr->txcsr);
- if (csr & MUSB_TXCSR_H_RXSTALL) {
- csr &= ~MUSB_TXCSR_H_RXSTALL;
- writew(csr, &musbr->txcsr);
- return 1;
- }
- } else { /* is it rx ep */
- csr = readw(&musbr->rxcsr);
- if (csr & MUSB_RXCSR_H_RXSTALL) {
- csr &= ~MUSB_RXCSR_H_RXSTALL;
- writew(csr, &musbr->rxcsr);
- return 1;
- }
- }
- }
- return 0;
-}
-
-/*
- * waits until ep0 is ready. Returns 0 if ep is ready, -1 for timeout
- * error and -2 for stall.
- */
-static int wait_until_ep0_ready(struct usb_device *dev, u32 bit_mask)
-{
- u16 csr;
- int result = 1;
- int timeout = MUSB_TIMEOUT;
-
- while (result > 0) {
- csr = readw(&musbr->txcsr);
- if (csr & MUSB_CSR0_H_ERROR) {
- csr &= ~MUSB_CSR0_H_ERROR;
- writew(csr, &musbr->txcsr);
- dev->status = USB_ST_CRC_ERR;
- result = -1;
- break;
- }
-
- switch (bit_mask) {
- case MUSB_CSR0_TXPKTRDY:
- if (!(csr & MUSB_CSR0_TXPKTRDY)) {
- if (check_stall(MUSB_CONTROL_EP, 0)) {
- dev->status = USB_ST_STALLED;
- result = -2;
- } else
- result = 0;
- }
- break;
-
- case MUSB_CSR0_RXPKTRDY:
- if (check_stall(MUSB_CONTROL_EP, 0)) {
- dev->status = USB_ST_STALLED;
- result = -2;
- } else
- if (csr & MUSB_CSR0_RXPKTRDY)
- result = 0;
- break;
-
- case MUSB_CSR0_H_REQPKT:
- if (!(csr & MUSB_CSR0_H_REQPKT)) {
- if (check_stall(MUSB_CONTROL_EP, 0)) {
- dev->status = USB_ST_STALLED;
- result = -2;
- } else
- result = 0;
- }
- break;
- }
-
- /* Check the timeout */
- if (--timeout)
- udelay(1);
- else {
- dev->status = USB_ST_CRC_ERR;
- result = -1;
- break;
- }
- }
-
- return result;
-}
-
-/*
- * waits until tx ep is ready. Returns 1 when ep is ready and 0 on error.
- */
-static int wait_until_txep_ready(struct usb_device *dev, u8 ep)
-{
- u16 csr;
- int timeout = MUSB_TIMEOUT;
-
- do {
- if (check_stall(ep, 1)) {
- dev->status = USB_ST_STALLED;
- return 0;
- }
-
- csr = readw(&musbr->txcsr);
- if (csr & MUSB_TXCSR_H_ERROR) {
- dev->status = USB_ST_CRC_ERR;
- return 0;
- }
-
- /* Check the timeout */
- if (--timeout)
- udelay(1);
- else {
- dev->status = USB_ST_CRC_ERR;
- return -1;
- }
-
- } while (csr & MUSB_TXCSR_TXPKTRDY);
- return 1;
-}
-
-/*
- * waits until rx ep is ready. Returns 1 when ep is ready and 0 on error.
- */
-static int wait_until_rxep_ready(struct usb_device *dev, u8 ep)
-{
- u16 csr;
- int timeout = MUSB_TIMEOUT;
-
- do {
- if (check_stall(ep, 0)) {
- dev->status = USB_ST_STALLED;
- return 0;
- }
-
- csr = readw(&musbr->rxcsr);
- if (csr & MUSB_RXCSR_H_ERROR) {
- dev->status = USB_ST_CRC_ERR;
- return 0;
- }
-
- /* Check the timeout */
- if (--timeout)
- udelay(1);
- else {
- dev->status = USB_ST_CRC_ERR;
- return -1;
- }
-
- } while (!(csr & MUSB_RXCSR_RXPKTRDY));
- return 1;
-}
-
-/*
- * This function performs the setup phase of the control transfer
- */
-static int ctrlreq_setup_phase(struct usb_device *dev, struct devrequest *setup)
-{
- int result;
- u16 csr;
-
- /* write the control request to ep0 fifo */
- write_fifo(MUSB_CONTROL_EP, sizeof(struct devrequest), (void *)setup);
-
- /* enable transfer of setup packet */
- csr = readw(&musbr->txcsr);
- csr |= (MUSB_CSR0_TXPKTRDY|MUSB_CSR0_H_SETUPPKT);
- writew(csr, &musbr->txcsr);
-
- /* wait until the setup packet is transmitted */
- result = wait_until_ep0_ready(dev, MUSB_CSR0_TXPKTRDY);
- dev->act_len = 0;
- return result;
-}
-
-/*
- * This function handles the control transfer in data phase
- */
-static int ctrlreq_in_data_phase(struct usb_device *dev, u32 len, void *buffer)
-{
- u16 csr;
- u32 rxlen = 0;
- u32 nextlen = 0;
- u8 maxpktsize = (1 << dev->maxpacketsize) * 8;
- u8 *rxbuff = (u8 *)buffer;
- u8 rxedlength;
- int result;
-
- while (rxlen < len) {
- /* Determine the next read length */
- nextlen = ((len-rxlen) > maxpktsize) ? maxpktsize : (len-rxlen);
-
- /* Set the ReqPkt bit */
- csr = readw(&musbr->txcsr);
- writew(csr | MUSB_CSR0_H_REQPKT, &musbr->txcsr);
- result = wait_until_ep0_ready(dev, MUSB_CSR0_RXPKTRDY);
- if (result < 0)
- return result;
-
- /* Actual number of bytes received by usb */
- rxedlength = readb(&musbr->rxcount);
-
- /* Read the data from the RxFIFO */
- read_fifo(MUSB_CONTROL_EP, rxedlength, &rxbuff[rxlen]);
-
- /* Clear the RxPktRdy Bit */
- csr = readw(&musbr->txcsr);
- csr &= ~MUSB_CSR0_RXPKTRDY;
- writew(csr, &musbr->txcsr);
-
- /* short packet? */
- if (rxedlength != nextlen) {
- dev->act_len += rxedlength;
- break;
- }
- rxlen += nextlen;
- dev->act_len = rxlen;
- }
- return 0;
-}
-
-/*
- * This function handles the control transfer out data phase
- */
-static int ctrlreq_out_data_phase(struct usb_device *dev, u32 len, void *buffer)
-{
- u16 csr;
- u32 txlen = 0;
- u32 nextlen = 0;
- u8 maxpktsize = (1 << dev->maxpacketsize) * 8;
- u8 *txbuff = (u8 *)buffer;
- int result = 0;
-
- while (txlen < len) {
- /* Determine the next write length */
- nextlen = ((len-txlen) > maxpktsize) ? maxpktsize : (len-txlen);
-
- /* Load the data to send in FIFO */
- write_fifo(MUSB_CONTROL_EP, txlen, &txbuff[txlen]);
-
- /* Set TXPKTRDY bit */
- csr = readw(&musbr->txcsr);
-
- csr |= MUSB_CSR0_TXPKTRDY;
- csr |= MUSB_CSR0_H_DIS_PING;
- writew(csr, &musbr->txcsr);
- result = wait_until_ep0_ready(dev, MUSB_CSR0_TXPKTRDY);
- if (result < 0)
- break;
-
- txlen += nextlen;
- dev->act_len = txlen;
- }
- return result;
-}
-
-/*
- * This function handles the control transfer out status phase
- */
-static int ctrlreq_out_status_phase(struct usb_device *dev)
-{
- u16 csr;
- int result;
-
- /* Set the StatusPkt bit */
- csr = readw(&musbr->txcsr);
- csr |= (MUSB_CSR0_TXPKTRDY | MUSB_CSR0_H_STATUSPKT);
- csr |= MUSB_CSR0_H_DIS_PING;
- writew(csr, &musbr->txcsr);
-
- /* Wait until TXPKTRDY bit is cleared */
- result = wait_until_ep0_ready(dev, MUSB_CSR0_TXPKTRDY);
- return result;
-}
-
-/*
- * This function handles the control transfer in status phase
- */
-static int ctrlreq_in_status_phase(struct usb_device *dev)
-{
- u16 csr;
- int result;
-
- /* Set the StatusPkt bit and ReqPkt bit */
- csr = MUSB_CSR0_H_REQPKT | MUSB_CSR0_H_STATUSPKT;
- csr |= MUSB_CSR0_H_DIS_PING;
- writew(csr, &musbr->txcsr);
- result = wait_until_ep0_ready(dev, MUSB_CSR0_H_REQPKT);
-
- /* clear StatusPkt bit and RxPktRdy bit */
- csr = readw(&musbr->txcsr);
- csr &= ~(MUSB_CSR0_RXPKTRDY | MUSB_CSR0_H_STATUSPKT);
- writew(csr, &musbr->txcsr);
- return result;
-}
-
-/*
- * determines the speed of the device (High/Full/Slow)
- */
-static u8 get_dev_speed(struct usb_device *dev)
-{
- return (dev->speed == USB_SPEED_HIGH) ? MUSB_TYPE_SPEED_HIGH :
- ((dev->speed == USB_SPEED_LOW) ? MUSB_TYPE_SPEED_LOW :
- MUSB_TYPE_SPEED_FULL);
-}
-
-/*
- * configure the hub address and the port address.
- */
-static void config_hub_port(struct usb_device *dev, u8 ep)
-{
- u8 chid;
- u8 hub;
-
- /* Find out the nearest parent which is high speed */
- while (dev->parent->parent != NULL)
- if (get_dev_speed(dev->parent) != MUSB_TYPE_SPEED_HIGH)
- dev = dev->parent;
- else
- break;
-
- /* determine the port address at that hub */
- hub = dev->parent->devnum;
- for (chid = 0; chid < USB_MAXCHILDREN; chid++)
- if (dev->parent->children[chid] == dev)
- break;
-
-#ifndef MUSB_NO_MULTIPOINT
- /* configure the hub address and the port address */
- writeb(hub, &musbr->tar[ep].txhubaddr);
- writeb((chid + 1), &musbr->tar[ep].txhubport);
- writeb(hub, &musbr->tar[ep].rxhubaddr);
- writeb((chid + 1), &musbr->tar[ep].rxhubport);
-#endif
-}
-
-#ifdef MUSB_NO_MULTIPOINT
-
-static void musb_port_reset(int do_reset)
-{
- u8 power = readb(&musbr->power);
-
- if (do_reset) {
- power &= 0xf0;
- writeb(power | MUSB_POWER_RESET, &musbr->power);
- port_status |= USB_PORT_STAT_RESET;
- port_status &= ~USB_PORT_STAT_ENABLE;
- udelay(30000);
- } else {
- writeb(power & ~MUSB_POWER_RESET, &musbr->power);
-
- power = readb(&musbr->power);
- if (power & MUSB_POWER_HSMODE)
- port_status |= USB_PORT_STAT_HIGH_SPEED;
-
- port_status &= ~(USB_PORT_STAT_RESET | (USB_PORT_STAT_C_CONNECTION << 16));
- port_status |= USB_PORT_STAT_ENABLE
- | (USB_PORT_STAT_C_RESET << 16)
- | (USB_PORT_STAT_C_ENABLE << 16);
- }
-}
-
-/*
- * root hub control
- */
-static int musb_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
- void *buffer, int transfer_len,
- struct devrequest *cmd)
-{
- int leni = transfer_len;
- int len = 0;
- int stat = 0;
- u32 datab[4];
- const u8 *data_buf = (u8 *) datab;
- u16 bmRType_bReq;
- u16 wValue;
- u16 wIndex;
- u16 wLength;
- u16 int_usb;
-
- if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
- debug("Root-Hub submit IRQ: NOT implemented\n");
- return 0;
- }
-
- bmRType_bReq = cmd->requesttype | (cmd->request << 8);
- wValue = swap_16(cmd->value);
- wIndex = swap_16(cmd->index);
- wLength = swap_16(cmd->length);
-
- debug("--- HUB ----------------------------------------\n");
- debug("submit rh urb, req=%x val=%#x index=%#x len=%d\n",
- bmRType_bReq, wValue, wIndex, wLength);
- debug("------------------------------------------------\n");
-
- switch (bmRType_bReq) {
- case RH_GET_STATUS:
- debug("RH_GET_STATUS\n");
-
- *(__u16 *) data_buf = swap_16(1);
- len = 2;
- break;
-
- case RH_GET_STATUS | RH_INTERFACE:
- debug("RH_GET_STATUS | RH_INTERFACE\n");
-
- *(__u16 *) data_buf = swap_16(0);
- len = 2;
- break;
-
- case RH_GET_STATUS | RH_ENDPOINT:
- debug("RH_GET_STATUS | RH_ENDPOINT\n");
-
- *(__u16 *) data_buf = swap_16(0);
- len = 2;
- break;
-
- case RH_GET_STATUS | RH_CLASS:
- debug("RH_GET_STATUS | RH_CLASS\n");
-
- *(__u32 *) data_buf = swap_32(0);
- len = 4;
- break;
-
- case RH_GET_STATUS | RH_OTHER | RH_CLASS:
- debug("RH_GET_STATUS | RH_OTHER | RH_CLASS\n");
-
- int_usb = readw(&musbr->intrusb);
- if (int_usb & MUSB_INTR_CONNECT) {
- port_status |= USB_PORT_STAT_CONNECTION
- | (USB_PORT_STAT_C_CONNECTION << 16);
- port_status |= USB_PORT_STAT_HIGH_SPEED
- | USB_PORT_STAT_ENABLE;
- }
-
- if (port_status & USB_PORT_STAT_RESET)
- musb_port_reset(0);
-
- *(__u32 *) data_buf = swap_32(port_status);
- len = 4;
- break;
-
- case RH_CLEAR_FEATURE | RH_ENDPOINT:
- debug("RH_CLEAR_FEATURE | RH_ENDPOINT\n");
-
- switch (wValue) {
- case RH_ENDPOINT_STALL:
- debug("C_HUB_ENDPOINT_STALL\n");
- len = 0;
- break;
- }
- port_status &= ~(1 << wValue);
- break;
-
- case RH_CLEAR_FEATURE | RH_CLASS:
- debug("RH_CLEAR_FEATURE | RH_CLASS\n");
-
- switch (wValue) {
- case RH_C_HUB_LOCAL_POWER:
- debug("C_HUB_LOCAL_POWER\n");
- len = 0;
- break;
-
- case RH_C_HUB_OVER_CURRENT:
- debug("C_HUB_OVER_CURRENT\n");
- len = 0;
- break;
- }
- port_status &= ~(1 << wValue);
- break;
-
- case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
- debug("RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS\n");
-
- switch (wValue) {
- case RH_PORT_ENABLE:
- len = 0;
- break;
-
- case RH_PORT_SUSPEND:
- len = 0;
- break;
-
- case RH_PORT_POWER:
- len = 0;
- break;
-
- case RH_C_PORT_CONNECTION:
- len = 0;
- break;
-
- case RH_C_PORT_ENABLE:
- len = 0;
- break;
-
- case RH_C_PORT_SUSPEND:
- len = 0;
- break;
-
- case RH_C_PORT_OVER_CURRENT:
- len = 0;
- break;
-
- case RH_C_PORT_RESET:
- len = 0;
- break;
-
- default:
- debug("invalid wValue\n");
- stat = USB_ST_STALLED;
- }
-
- port_status &= ~(1 << wValue);
- break;
-
- case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
- debug("RH_SET_FEATURE | RH_OTHER | RH_CLASS\n");
-
- switch (wValue) {
- case RH_PORT_SUSPEND:
- len = 0;
- break;
-
- case RH_PORT_RESET:
- musb_port_reset(1);
- len = 0;
- break;
-
- case RH_PORT_POWER:
- len = 0;
- break;
-
- case RH_PORT_ENABLE:
- len = 0;
- break;
-
- default:
- debug("invalid wValue\n");
- stat = USB_ST_STALLED;
- }
-
- port_status |= 1 << wValue;
- break;
-
- case RH_SET_ADDRESS:
- debug("RH_SET_ADDRESS\n");
-
- rh_devnum = wValue;
- len = 0;
- break;
-
- case RH_GET_DESCRIPTOR:
- debug("RH_GET_DESCRIPTOR: %x, %d\n", wValue, wLength);
-
- switch (wValue) {
- case (USB_DT_DEVICE << 8): /* device descriptor */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_dev_des),
- wLength));
- data_buf = root_hub_dev_des;
- break;
-
- case (USB_DT_CONFIG << 8): /* configuration descriptor */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_config_des),
- wLength));
- data_buf = root_hub_config_des;
- break;
-
- case ((USB_DT_STRING << 8) | 0x00): /* string 0 descriptors */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_str_index0),
- wLength));
- data_buf = root_hub_str_index0;
- break;
-
- case ((USB_DT_STRING << 8) | 0x01): /* string 1 descriptors */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_str_index1),
- wLength));
- data_buf = root_hub_str_index1;
- break;
-
- default:
- debug("invalid wValue\n");
- stat = USB_ST_STALLED;
- }
-
- break;
-
- case RH_GET_DESCRIPTOR | RH_CLASS: {
- u8 *_data_buf = (u8 *) datab;
- debug("RH_GET_DESCRIPTOR | RH_CLASS\n");
-
- _data_buf[0] = 0x09; /* min length; */
- _data_buf[1] = 0x29;
- _data_buf[2] = 0x1; /* 1 port */
- _data_buf[3] = 0x01; /* per-port power switching */
- _data_buf[3] |= 0x10; /* no overcurrent reporting */
-
- /* Corresponds to data_buf[4-7] */
- _data_buf[4] = 0;
- _data_buf[5] = 5;
- _data_buf[6] = 0;
- _data_buf[7] = 0x02;
- _data_buf[8] = 0xff;
-
- len = min_t(unsigned int, leni,
- min_t(unsigned int, data_buf[0], wLength));
- break;
- }
-
- case RH_GET_CONFIGURATION:
- debug("RH_GET_CONFIGURATION\n");
-
- *(__u8 *) data_buf = 0x01;
- len = 1;
- break;
-
- case RH_SET_CONFIGURATION:
- debug("RH_SET_CONFIGURATION\n");
-
- len = 0;
- break;
-
- default:
- debug("*** *** *** unsupported root hub command *** *** ***\n");
- stat = USB_ST_STALLED;
- }
-
- len = min_t(int, len, leni);
- if (buffer != data_buf)
- memcpy(buffer, data_buf, len);
-
- dev->act_len = len;
- dev->status = stat;
- debug("dev act_len %d, status %lu\n", dev->act_len, dev->status);
-
- return stat;
-}
-
-static void musb_rh_init(void)
-{
- rh_devnum = 0;
- port_status = 0;
-}
-
-#else
-
-static void musb_rh_init(void) {}
-
-#endif
-
-/*
- * do a control transfer
- */
-int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int len, struct devrequest *setup)
-{
- int devnum = usb_pipedevice(pipe);
- u8 devspeed;
-
-#ifdef MUSB_NO_MULTIPOINT
- /* Control message is for the HUB? */
- if (devnum == rh_devnum) {
- int stat = musb_submit_rh_msg(dev, pipe, buffer, len, setup);
- if (stat)
- return stat;
- }
-#endif
-
- /* select control endpoint */
- writeb(MUSB_CONTROL_EP, &musbr->index);
- readw(&musbr->txcsr);
-
-#ifndef MUSB_NO_MULTIPOINT
- /* target addr and (for multipoint) hub addr/port */
- writeb(devnum, &musbr->tar[MUSB_CONTROL_EP].txfuncaddr);
- writeb(devnum, &musbr->tar[MUSB_CONTROL_EP].rxfuncaddr);
-#endif
-
- /* configure the hub address and the port number as required */
- devspeed = get_dev_speed(dev);
- if ((musb_ishighspeed()) && (dev->parent != NULL) &&
- (devspeed != MUSB_TYPE_SPEED_HIGH)) {
- config_hub_port(dev, MUSB_CONTROL_EP);
- writeb(devspeed << 6, &musbr->txtype);
- } else {
- writeb(musb_cfg.musb_speed << 6, &musbr->txtype);
-#ifndef MUSB_NO_MULTIPOINT
- writeb(0, &musbr->tar[MUSB_CONTROL_EP].txhubaddr);
- writeb(0, &musbr->tar[MUSB_CONTROL_EP].txhubport);
- writeb(0, &musbr->tar[MUSB_CONTROL_EP].rxhubaddr);
- writeb(0, &musbr->tar[MUSB_CONTROL_EP].rxhubport);
-#endif
- }
-
- /* Control transfer setup phase */
- if (ctrlreq_setup_phase(dev, setup) < 0)
- return 0;
-
- switch (setup->request) {
- case USB_REQ_GET_DESCRIPTOR:
- case USB_REQ_GET_CONFIGURATION:
- case USB_REQ_GET_INTERFACE:
- case USB_REQ_GET_STATUS:
- case USB_MSC_BBB_GET_MAX_LUN:
- /* control transfer in-data-phase */
- if (ctrlreq_in_data_phase(dev, len, buffer) < 0)
- return 0;
- /* control transfer out-status-phase */
- if (ctrlreq_out_status_phase(dev) < 0)
- return 0;
- break;
-
- case USB_REQ_SET_ADDRESS:
- case USB_REQ_SET_CONFIGURATION:
- case USB_REQ_SET_FEATURE:
- case USB_REQ_SET_INTERFACE:
- case USB_REQ_CLEAR_FEATURE:
- case USB_MSC_BBB_RESET:
- /* control transfer in status phase */
- if (ctrlreq_in_status_phase(dev) < 0)
- return 0;
- break;
-
- case USB_REQ_SET_DESCRIPTOR:
- /* control transfer out data phase */
- if (ctrlreq_out_data_phase(dev, len, buffer) < 0)
- return 0;
- /* control transfer in status phase */
- if (ctrlreq_in_status_phase(dev) < 0)
- return 0;
- break;
-
- default:
- /* unhandled control transfer */
- return -1;
- }
-
- dev->status = 0;
- dev->act_len = len;
-
-#ifdef MUSB_NO_MULTIPOINT
- /* Set device address to USB_FADDR register */
- if (setup->request == USB_REQ_SET_ADDRESS)
- writeb(dev->devnum, &musbr->faddr);
-#endif
-
- return len;
-}
-
-/*
- * do a bulk transfer
- */
-int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
- void *buffer, int len)
-{
- int dir_out = usb_pipeout(pipe);
- int ep = usb_pipeendpoint(pipe);
-#ifndef MUSB_NO_MULTIPOINT
- int devnum = usb_pipedevice(pipe);
-#endif
- u8 type;
- u16 csr;
- u32 txlen = 0;
- u32 nextlen = 0;
- u8 devspeed;
-
- /* select bulk endpoint */
- writeb(MUSB_BULK_EP, &musbr->index);
-
-#ifndef MUSB_NO_MULTIPOINT
- /* write the address of the device */
- if (dir_out)
- writeb(devnum, &musbr->tar[MUSB_BULK_EP].txfuncaddr);
- else
- writeb(devnum, &musbr->tar[MUSB_BULK_EP].rxfuncaddr);
-#endif
-
- /* configure the hub address and the port number as required */
- devspeed = get_dev_speed(dev);
- if ((musb_ishighspeed()) && (dev->parent != NULL) &&
- (devspeed != MUSB_TYPE_SPEED_HIGH)) {
- /*
- * MUSB is in high speed and the destination device is full
- * speed device. So configure the hub address and port
- * address registers.
- */
- config_hub_port(dev, MUSB_BULK_EP);
- } else {
-#ifndef MUSB_NO_MULTIPOINT
- if (dir_out) {
- writeb(0, &musbr->tar[MUSB_BULK_EP].txhubaddr);
- writeb(0, &musbr->tar[MUSB_BULK_EP].txhubport);
- } else {
- writeb(0, &musbr->tar[MUSB_BULK_EP].rxhubaddr);
- writeb(0, &musbr->tar[MUSB_BULK_EP].rxhubport);
- }
-#endif
- devspeed = musb_cfg.musb_speed;
- }
-
- /* Write the saved toggle bit value */
- write_toggle(dev, ep, dir_out);
-
- if (dir_out) { /* bulk-out transfer */
- /* Program the TxType register */
- type = (devspeed << MUSB_TYPE_SPEED_SHIFT) |
- (MUSB_TYPE_PROTO_BULK << MUSB_TYPE_PROTO_SHIFT) |
- (ep & MUSB_TYPE_REMOTE_END);
- writeb(type, &musbr->txtype);
-
- /* Write maximum packet size to the TxMaxp register */
- writew(dev->epmaxpacketout[ep], &musbr->txmaxp);
- while (txlen < len) {
- nextlen = ((len-txlen) < dev->epmaxpacketout[ep]) ?
- (len-txlen) : dev->epmaxpacketout[ep];
-
- /* Write the data to the FIFO */
- write_fifo(MUSB_BULK_EP, nextlen,
- (void *)(((u8 *)buffer) + txlen));
-
- /* Set the TxPktRdy bit */
- csr = readw(&musbr->txcsr);
- writew(csr | MUSB_TXCSR_TXPKTRDY, &musbr->txcsr);
-
- /* Wait until the TxPktRdy bit is cleared */
- if (wait_until_txep_ready(dev, MUSB_BULK_EP) != 1) {
- readw(&musbr->txcsr);
- usb_settoggle(dev, ep, dir_out,
- (csr >> MUSB_TXCSR_H_DATATOGGLE_SHIFT) & 1);
- dev->act_len = txlen;
- return 0;
- }
- txlen += nextlen;
- }
-
- /* Keep a copy of the data toggle bit */
- csr = readw(&musbr->txcsr);
- usb_settoggle(dev, ep, dir_out,
- (csr >> MUSB_TXCSR_H_DATATOGGLE_SHIFT) & 1);
- } else { /* bulk-in transfer */
- /* Write the saved toggle bit value */
- write_toggle(dev, ep, dir_out);
-
- /* Program the RxType register */
- type = (devspeed << MUSB_TYPE_SPEED_SHIFT) |
- (MUSB_TYPE_PROTO_BULK << MUSB_TYPE_PROTO_SHIFT) |
- (ep & MUSB_TYPE_REMOTE_END);
- writeb(type, &musbr->rxtype);
-
- /* Write the maximum packet size to the RxMaxp register */
- writew(dev->epmaxpacketin[ep], &musbr->rxmaxp);
- while (txlen < len) {
- nextlen = ((len-txlen) < dev->epmaxpacketin[ep]) ?
- (len-txlen) : dev->epmaxpacketin[ep];
-
- /* Set the ReqPkt bit */
- csr = readw(&musbr->rxcsr);
- writew(csr | MUSB_RXCSR_H_REQPKT, &musbr->rxcsr);
-
- /* Wait until the RxPktRdy bit is set */
- if (wait_until_rxep_ready(dev, MUSB_BULK_EP) != 1) {
- csr = readw(&musbr->rxcsr);
- usb_settoggle(dev, ep, dir_out,
- (csr >> MUSB_S_RXCSR_H_DATATOGGLE) & 1);
- csr &= ~MUSB_RXCSR_RXPKTRDY;
- writew(csr, &musbr->rxcsr);
- dev->act_len = txlen;
- return 0;
- }
-
- /* Read the data from the FIFO */
- read_fifo(MUSB_BULK_EP, nextlen,
- (void *)(((u8 *)buffer) + txlen));
-
- /* Clear the RxPktRdy bit */
- csr = readw(&musbr->rxcsr);
- csr &= ~MUSB_RXCSR_RXPKTRDY;
- writew(csr, &musbr->rxcsr);
- txlen += nextlen;
- }
-
- /* Keep a copy of the data toggle bit */
- csr = readw(&musbr->rxcsr);
- usb_settoggle(dev, ep, dir_out,
- (csr >> MUSB_S_RXCSR_H_DATATOGGLE) & 1);
- }
-
- /* bulk transfer is complete */
- dev->status = 0;
- dev->act_len = len;
- return 0;
-}
-
-/*
- * This function initializes the usb controller module.
- */
-int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
-{
- u8 power;
- u32 timeout;
-
- musb_rh_init();
-
- if (musb_platform_init() == -1)
- return -1;
-
- /* Configure all the endpoint FIFO's and start usb controller */
- musbr = musb_cfg.regs;
- musb_configure_ep(&epinfo[0], ARRAY_SIZE(epinfo));
- musb_start();
-
- /*
- * Wait until musb is enabled in host mode with a timeout. There
- * should be a usb device connected.
- */
- timeout = musb_cfg.timeout;
- while (--timeout)
- if (readb(&musbr->devctl) & MUSB_DEVCTL_HM)
- break;
-
- /* if musb core is not in host mode, then return */
- if (!timeout)
- return -1;
-
- /* start usb bus reset */
- power = readb(&musbr->power);
- writeb(power | MUSB_POWER_RESET, &musbr->power);
-
- /* After initiating a usb reset, wait for about 20ms to 30ms */
- udelay(30000);
-
- /* stop usb bus reset */
- power = readb(&musbr->power);
- power &= ~MUSB_POWER_RESET;
- writeb(power, &musbr->power);
-
- /* Determine if the connected device is a high/full/low speed device */
- musb_cfg.musb_speed = (readb(&musbr->power) & MUSB_POWER_HSMODE) ?
- MUSB_TYPE_SPEED_HIGH :
- ((readb(&musbr->devctl) & MUSB_DEVCTL_FSDEV) ?
- MUSB_TYPE_SPEED_FULL : MUSB_TYPE_SPEED_LOW);
- return 0;
-}
-
-/*
- * This function stops the operation of the davinci usb module.
- */
-int usb_lowlevel_stop(int index)
-{
- /* Reset the USB module */
- musb_platform_deinit();
- writeb(0, &musbr->devctl);
- return 0;
-}
-
-/*
- * This function supports usb interrupt transfers. Currently, usb interrupt
- * transfers are not supported.
- */
-int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int len, int interval, bool nonblock)
-{
- int dir_out = usb_pipeout(pipe);
- int ep = usb_pipeendpoint(pipe);
-#ifndef MUSB_NO_MULTIPOINT
- int devnum = usb_pipedevice(pipe);
-#endif
- u8 type;
- u16 csr;
- u32 txlen = 0;
- u32 nextlen = 0;
- u8 devspeed;
-
- /* select interrupt endpoint */
- writeb(MUSB_INTR_EP, &musbr->index);
-
-#ifndef MUSB_NO_MULTIPOINT
- /* write the address of the device */
- if (dir_out)
- writeb(devnum, &musbr->tar[MUSB_INTR_EP].txfuncaddr);
- else
- writeb(devnum, &musbr->tar[MUSB_INTR_EP].rxfuncaddr);
-#endif
-
- /* configure the hub address and the port number as required */
- devspeed = get_dev_speed(dev);
- if ((musb_ishighspeed()) && (dev->parent != NULL) &&
- (devspeed != MUSB_TYPE_SPEED_HIGH)) {
- /*
- * MUSB is in high speed and the destination device is full
- * speed device. So configure the hub address and port
- * address registers.
- */
- config_hub_port(dev, MUSB_INTR_EP);
- } else {
-#ifndef MUSB_NO_MULTIPOINT
- if (dir_out) {
- writeb(0, &musbr->tar[MUSB_INTR_EP].txhubaddr);
- writeb(0, &musbr->tar[MUSB_INTR_EP].txhubport);
- } else {
- writeb(0, &musbr->tar[MUSB_INTR_EP].rxhubaddr);
- writeb(0, &musbr->tar[MUSB_INTR_EP].rxhubport);
- }
-#endif
- devspeed = musb_cfg.musb_speed;
- }
-
- /* Write the saved toggle bit value */
- write_toggle(dev, ep, dir_out);
-
- if (!dir_out) { /* intrrupt-in transfer */
- /* Write the saved toggle bit value */
- write_toggle(dev, ep, dir_out);
- writeb(interval, &musbr->rxinterval);
-
- /* Program the RxType register */
- type = (devspeed << MUSB_TYPE_SPEED_SHIFT) |
- (MUSB_TYPE_PROTO_INTR << MUSB_TYPE_PROTO_SHIFT) |
- (ep & MUSB_TYPE_REMOTE_END);
- writeb(type, &musbr->rxtype);
-
- /* Write the maximum packet size to the RxMaxp register */
- writew(dev->epmaxpacketin[ep], &musbr->rxmaxp);
-
- while (txlen < len) {
- nextlen = ((len-txlen) < dev->epmaxpacketin[ep]) ?
- (len-txlen) : dev->epmaxpacketin[ep];
-
- /* Set the ReqPkt bit */
- csr = readw(&musbr->rxcsr);
- writew(csr | MUSB_RXCSR_H_REQPKT, &musbr->rxcsr);
-
- /* Wait until the RxPktRdy bit is set */
- if (wait_until_rxep_ready(dev, MUSB_INTR_EP) != 1) {
- csr = readw(&musbr->rxcsr);
- usb_settoggle(dev, ep, dir_out,
- (csr >> MUSB_S_RXCSR_H_DATATOGGLE) & 1);
- csr &= ~MUSB_RXCSR_RXPKTRDY;
- writew(csr, &musbr->rxcsr);
- dev->act_len = txlen;
- return 0;
- }
-
- /* Read the data from the FIFO */
- read_fifo(MUSB_INTR_EP, nextlen,
- (void *)(((u8 *)buffer) + txlen));
-
- /* Clear the RxPktRdy bit */
- csr = readw(&musbr->rxcsr);
- csr &= ~MUSB_RXCSR_RXPKTRDY;
- writew(csr, &musbr->rxcsr);
- txlen += nextlen;
- }
-
- /* Keep a copy of the data toggle bit */
- csr = readw(&musbr->rxcsr);
- usb_settoggle(dev, ep, dir_out,
- (csr >> MUSB_S_RXCSR_H_DATATOGGLE) & 1);
- }
-
- /* interrupt transfer is complete */
- dev->irq_status = 0;
- dev->irq_act_len = len;
- dev->irq_handle(dev);
- dev->status = 0;
- dev->act_len = len;
- return 0;
-}
diff --git a/drivers/usb/musb/musb_hcd.h b/drivers/usb/musb/musb_hcd.h
deleted file mode 100644
index a492e99ef9d1..000000000000
--- a/drivers/usb/musb/musb_hcd.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Mentor USB OTG Core host controller driver.
- *
- * Copyright (c) 2008 Texas Instruments
- *
- * Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
- */
-
-#ifndef __MUSB_HCD_H__
-#define __MUSB_HCD_H__
-
-#include "musb_core.h"
-#ifdef CONFIG_USB_KEYBOARD
-#include <stdio_dev.h>
-extern unsigned char new[];
-#endif
-
-#define MUSB_TIMEOUT 100000
-
-/* This defines the endpoint number used for control transfers */
-#define MUSB_CONTROL_EP 0
-
-/* This defines the endpoint number used for bulk transfer */
-#ifndef MUSB_BULK_EP
-# define MUSB_BULK_EP 1
-#endif
-
-/* This defines the endpoint number used for interrupt transfer */
-#define MUSB_INTR_EP 2
-
-/* Determine the operating speed of MUSB core */
-#define musb_ishighspeed() \
- ((readb(&musbr->power) & MUSB_POWER_HSMODE) \
- >> MUSB_POWER_HSMODE_SHIFT)
-
-/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */
-
-/* destination of request */
-#define RH_INTERFACE 0x01
-#define RH_ENDPOINT 0x02
-#define RH_OTHER 0x03
-
-#define RH_CLASS 0x20
-#define RH_VENDOR 0x40
-
-/* Requests: bRequest << 8 | bmRequestType */
-#define RH_GET_STATUS 0x0080
-#define RH_CLEAR_FEATURE 0x0100
-#define RH_SET_FEATURE 0x0300
-#define RH_SET_ADDRESS 0x0500
-#define RH_GET_DESCRIPTOR 0x0680
-#define RH_SET_DESCRIPTOR 0x0700
-#define RH_GET_CONFIGURATION 0x0880
-#define RH_SET_CONFIGURATION 0x0900
-#define RH_GET_STATE 0x0280
-#define RH_GET_INTERFACE 0x0A80
-#define RH_SET_INTERFACE 0x0B00
-#define RH_SYNC_FRAME 0x0C80
-/* Our Vendor Specific Request */
-#define RH_SET_EP 0x2000
-
-/* Hub port features */
-#define RH_PORT_CONNECTION 0x00
-#define RH_PORT_ENABLE 0x01
-#define RH_PORT_SUSPEND 0x02
-#define RH_PORT_OVER_CURRENT 0x03
-#define RH_PORT_RESET 0x04
-#define RH_PORT_POWER 0x08
-#define RH_PORT_LOW_SPEED 0x09
-
-#define RH_C_PORT_CONNECTION 0x10
-#define RH_C_PORT_ENABLE 0x11
-#define RH_C_PORT_SUSPEND 0x12
-#define RH_C_PORT_OVER_CURRENT 0x13
-#define RH_C_PORT_RESET 0x14
-
-/* Hub features */
-#define RH_C_HUB_LOCAL_POWER 0x00
-#define RH_C_HUB_OVER_CURRENT 0x01
-
-#define RH_DEVICE_REMOTE_WAKEUP 0x00
-#define RH_ENDPOINT_STALL 0x01
-
-#define RH_ACK 0x01
-#define RH_REQ_ERR -1
-#define RH_NACK 0x00
-
-/* extern functions */
-extern int musb_platform_init(void);
-extern void musb_platform_deinit(void);
-
-#endif /* __MUSB_HCD_H__ */
diff --git a/drivers/usb/musb/musb_udc.c b/drivers/usb/musb/musb_udc.c
deleted file mode 100644
index 696855ee3a61..000000000000
--- a/drivers/usb/musb/musb_udc.c
+++ /dev/null
@@ -1,953 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (c) 2009 Wind River Systems, Inc.
- * Tom Rix <Tom.Rix@windriver.com>
- *
- * This file is a rewrite of the usb device part of
- * repository git.omapzoom.org/repo/u-boot.git, branch master,
- * file cpu/omap3/fastboot.c
- *
- * This is the unique part of its copyright :
- *
- * -------------------------------------------------------------------------
- *
- * (C) Copyright 2008 - 2009
- * Windriver, <www.windriver.com>
- * Tom Rix <Tom.Rix@windriver.com>
- *
- * -------------------------------------------------------------------------
- *
- * The details of connecting the device to the uboot usb device subsystem
- * came from the old omap3 repository www.sakoman.net/u-boot-omap3.git,
- * branch omap3-dev-usb, file drivers/usb/usbdcore_musb.c
- *
- * This is the unique part of its copyright :
- *
- * -------------------------------------------------------------------------
- *
- * (C) Copyright 2008 Texas Instruments Incorporated.
- *
- * Based on
- * u-boot OMAP1510 USB drivers (drivers/usbdcore_omap1510.c)
- * twl4030 init based on linux (drivers/i2c/chips/twl4030_usb.c)
- *
- * Author: Diego Dompe (diego.dompe@ridgerun.com)
- * Atin Malaviya (atin.malaviya@gmail.com)
- *
- * -------------------------------------------------------------------------
- */
-
-#include <hang.h>
-#include <serial.h>
-#include <usbdevice.h>
-#include <linux/delay.h>
-#include <usb/udc.h>
-#include "../gadget/ep0.h"
-#include "musb_core.h"
-#if defined(CONFIG_USB_OMAP3)
-#include "omap3.h"
-#elif defined(CONFIG_USB_AM35X)
-#include "am35x.h"
-#endif
-
-/* Define MUSB_DEBUG for debugging */
-/* #define MUSB_DEBUG */
-#include "musb_debug.h"
-
-#define MAX_ENDPOINT 15
-
-#define GET_ENDPOINT(dev,ep) \
-(((struct usb_device_instance *)(dev))->bus->endpoint_array + ep)
-
-#define SET_EP0_STATE(s) \
-do { \
- if ((0 <= (s)) && (SET_ADDRESS >= (s))) { \
- if ((s) != ep0_state) { \
- if ((debug_setup) && (debug_level > 1)) \
- serial_printf("INFO : Changing state " \
- "from %s to %s in %s at " \
- "line %d\n", \
- ep0_state_strings[ep0_state],\
- ep0_state_strings[s], \
- __PRETTY_FUNCTION__, \
- __LINE__); \
- ep0_state = s; \
- } \
- } else { \
- if (debug_level > 0) \
- serial_printf("Error at %s %d with setting " \
- "state %d is invalid\n", \
- __PRETTY_FUNCTION__, __LINE__, s); \
- } \
-} while (0)
-
-/* static implies these initialized to 0 or NULL */
-static int debug_setup;
-static int debug_level;
-static struct musb_epinfo epinfo[MAX_ENDPOINT * 2 + 2];
-static enum ep0_state_enum {
- IDLE = 0,
- TX,
- RX,
- SET_ADDRESS
-} ep0_state = IDLE;
-static char *ep0_state_strings[4] = {
- "IDLE",
- "TX",
- "RX",
- "SET_ADDRESS",
-};
-
-static struct urb *ep0_urb;
-struct usb_endpoint_instance *ep0_endpoint;
-static struct usb_device_instance *udc_device;
-static int enabled;
-
-static u16 pending_intrrx;
-
-#ifdef MUSB_DEBUG
-static void musb_db_regs(void)
-{
- u8 b;
- u16 w;
-
- b = readb(&musbr->faddr);
- serial_printf("\tfaddr 0x%2.2x\n", b);
-
- b = readb(&musbr->power);
- musb_print_pwr(b);
-
- w = readw(&musbr->ep[0].ep0.csr0);
- musb_print_csr0(w);
-
- b = readb(&musbr->devctl);
- musb_print_devctl(b);
-
- b = readb(&musbr->ep[0].ep0.configdata);
- musb_print_config(b);
-
- w = readw(&musbr->frame);
- serial_printf("\tframe 0x%4.4x\n", w);
-
- b = readb(&musbr->index);
- serial_printf("\tindex 0x%2.2x\n", b);
-
- w = readw(&musbr->ep[1].epN.rxmaxp);
- musb_print_rxmaxp(w);
-
- w = readw(&musbr->ep[1].epN.rxcsr);
- musb_print_rxcsr(w);
-
- w = readw(&musbr->ep[1].epN.txmaxp);
- musb_print_txmaxp(w);
-
- w = readw(&musbr->ep[1].epN.txcsr);
- musb_print_txcsr(w);
-}
-#else
-#define musb_db_regs()
-#endif /* DEBUG_MUSB */
-
-static void musb_peri_softconnect(void)
-{
- u8 power, devctl;
-
- /* Power off MUSB */
- power = readb(&musbr->power);
- power &= ~MUSB_POWER_SOFTCONN;
- writeb(power, &musbr->power);
-
- /* Read intr to clear */
- readb(&musbr->intrusb);
- readw(&musbr->intrrx);
- readw(&musbr->intrtx);
-
- udelay(1000 * 1000); /* 1 sec */
-
- /* Power on MUSB */
- power = readb(&musbr->power);
- power |= MUSB_POWER_SOFTCONN;
- /*
- * The usb device interface is usb 1.1
- * Disable 2.0 high speed by clearring the hsenable bit.
- */
- power &= ~MUSB_POWER_HSENAB;
- writeb(power, &musbr->power);
-
- /* Check if device is in b-peripheral mode */
- devctl = readb(&musbr->devctl);
- if (!(devctl & MUSB_DEVCTL_BDEVICE) ||
- (devctl & MUSB_DEVCTL_HM)) {
- serial_printf("ERROR : Unsupport USB mode\n");
- serial_printf("Check that mini-B USB cable is attached "
- "to the device\n");
- }
-
- if (debug_setup && (debug_level > 1))
- musb_db_regs();
-}
-
-static void musb_peri_reset(void)
-{
- if ((debug_setup) && (debug_level > 1))
- serial_printf("INFO : %s reset\n", __PRETTY_FUNCTION__);
-
- if (ep0_endpoint)
- ep0_endpoint->endpoint_address = 0xff;
-
- /* Sync sw and hw addresses */
- writeb(udc_device->address, &musbr->faddr);
-
- SET_EP0_STATE(IDLE);
-}
-
-static void musb_peri_resume(void)
-{
- /* noop */
-}
-
-static void musb_peri_ep0_stall(void)
-{
- u16 csr0;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- csr0 |= MUSB_CSR0_P_SENDSTALL;
- writew(csr0, &musbr->ep[0].ep0.csr0);
- if ((debug_setup) && (debug_level > 1))
- serial_printf("INFO : %s stall\n", __PRETTY_FUNCTION__);
-}
-
-static void musb_peri_ep0_ack_req(void)
-{
- u16 csr0;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- csr0 |= MUSB_CSR0_P_SVDRXPKTRDY;
- writew(csr0, &musbr->ep[0].ep0.csr0);
-}
-
-static void musb_ep0_tx_ready(void)
-{
- u16 csr0;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- csr0 |= MUSB_CSR0_TXPKTRDY;
- writew(csr0, &musbr->ep[0].ep0.csr0);
-}
-
-static void musb_ep0_tx_ready_and_last(void)
-{
- u16 csr0;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- csr0 |= (MUSB_CSR0_TXPKTRDY | MUSB_CSR0_P_DATAEND);
- writew(csr0, &musbr->ep[0].ep0.csr0);
-}
-
-static void musb_peri_ep0_last(void)
-{
- u16 csr0;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- csr0 |= MUSB_CSR0_P_DATAEND;
- writew(csr0, &musbr->ep[0].ep0.csr0);
-}
-
-static void musb_peri_ep0_set_address(void)
-{
- u8 faddr;
- writeb(udc_device->address, &musbr->faddr);
-
- /* Verify */
- faddr = readb(&musbr->faddr);
- if (udc_device->address == faddr) {
- SET_EP0_STATE(IDLE);
- usbd_device_event_irq(udc_device, DEVICE_ADDRESS_ASSIGNED, 0);
- if ((debug_setup) && (debug_level > 1))
- serial_printf("INFO : %s Address set to %d\n",
- __PRETTY_FUNCTION__, udc_device->address);
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s Address mismatch "
- "sw %d vs hw %d\n",
- __PRETTY_FUNCTION__,
- udc_device->address, faddr);
- }
-}
-
-static void musb_peri_rx_ack(unsigned int ep)
-{
- u16 peri_rxcsr;
-
- peri_rxcsr = readw(&musbr->ep[ep].epN.rxcsr);
- peri_rxcsr &= ~MUSB_RXCSR_RXPKTRDY;
- writew(peri_rxcsr, &musbr->ep[ep].epN.rxcsr);
-}
-
-static void musb_peri_tx_ready(unsigned int ep)
-{
- u16 peri_txcsr;
-
- peri_txcsr = readw(&musbr->ep[ep].epN.txcsr);
- peri_txcsr |= MUSB_TXCSR_TXPKTRDY;
- writew(peri_txcsr, &musbr->ep[ep].epN.txcsr);
-}
-
-static void musb_peri_ep0_zero_data_request(int err)
-{
- musb_peri_ep0_ack_req();
-
- if (err) {
- musb_peri_ep0_stall();
- SET_EP0_STATE(IDLE);
- } else {
-
- musb_peri_ep0_last();
-
- /* USBD state */
- switch (ep0_urb->device_request.bRequest) {
- case USB_REQ_SET_ADDRESS:
- if ((debug_setup) && (debug_level > 1))
- serial_printf("INFO : %s received set "
- "address\n", __PRETTY_FUNCTION__);
- break;
-
- case USB_REQ_SET_CONFIGURATION:
- if ((debug_setup) && (debug_level > 1))
- serial_printf("INFO : %s Configured\n",
- __PRETTY_FUNCTION__);
- usbd_device_event_irq(udc_device, DEVICE_CONFIGURED, 0);
- break;
- }
-
- /* EP0 state */
- if (USB_REQ_SET_ADDRESS == ep0_urb->device_request.bRequest) {
- SET_EP0_STATE(SET_ADDRESS);
- } else {
- SET_EP0_STATE(IDLE);
- }
- }
-}
-
-static void musb_peri_ep0_rx_data_request(void)
-{
- /*
- * This is the completion of the data OUT / RX
- *
- * Host is sending data to ep0 that is not
- * part of setup. This comes from the cdc_recv_setup
- * op that is device specific.
- *
- */
- musb_peri_ep0_ack_req();
-
- ep0_endpoint->rcv_urb = ep0_urb;
- ep0_urb->actual_length = 0;
- SET_EP0_STATE(RX);
-}
-
-static void musb_peri_ep0_tx_data_request(int err)
-{
- if (err) {
- musb_peri_ep0_stall();
- SET_EP0_STATE(IDLE);
- } else {
- musb_peri_ep0_ack_req();
-
- ep0_endpoint->tx_urb = ep0_urb;
- ep0_endpoint->sent = 0;
- SET_EP0_STATE(TX);
- }
-}
-
-static void musb_peri_ep0_idle(void)
-{
- u16 count0;
- int err;
- u16 csr0;
-
- /*
- * Verify addresses
- * A lot of confusion can be caused if the address
- * in software, udc layer, does not agree with the
- * hardware. Since the setting of the hardware address
- * must be set after the set address request, the
- * usb state machine is out of sync for a few frame.
- * It is a good idea to run this check when changes
- * are made to the state machine.
- */
- if ((debug_level > 0) &&
- (ep0_state != SET_ADDRESS)) {
- u8 faddr;
-
- faddr = readb(&musbr->faddr);
- if (udc_device->address != faddr) {
- serial_printf("ERROR : %s addresses do not"
- "match sw %d vs hw %d\n",
- __PRETTY_FUNCTION__,
- udc_device->address, faddr);
- udelay(1000 * 1000);
- hang();
- }
- }
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
-
- if (!(MUSB_CSR0_RXPKTRDY & csr0))
- goto end;
-
- count0 = readw(&musbr->ep[0].ep0.count0);
- if (count0 == 0)
- goto end;
-
- if (count0 != 8) {
- if ((debug_setup) && (debug_level > 1))
- serial_printf("WARN : %s SETUP incorrect size %d\n",
- __PRETTY_FUNCTION__, count0);
- musb_peri_ep0_stall();
- goto end;
- }
-
- read_fifo(0, count0, &ep0_urb->device_request);
-
- if (debug_level > 2)
- print_usb_device_request(&ep0_urb->device_request);
-
- if (ep0_urb->device_request.wLength == 0) {
- err = ep0_recv_setup(ep0_urb);
-
- /* Zero data request */
- musb_peri_ep0_zero_data_request(err);
- } else {
- /* Is data coming or going ? */
- u8 reqType = ep0_urb->device_request.bmRequestType;
-
- if (USB_REQ_DEVICE2HOST == (reqType & USB_REQ_DIRECTION_MASK)) {
- err = ep0_recv_setup(ep0_urb);
- /* Device to host */
- musb_peri_ep0_tx_data_request(err);
- } else {
- /*
- * Host to device
- *
- * The RX routine will call ep0_recv_setup
- * when the data packet has arrived.
- */
- musb_peri_ep0_rx_data_request();
- }
- }
-
-end:
- return;
-}
-
-static void musb_peri_ep0_rx(void)
-{
- /*
- * This is the completion of the data OUT / RX
- *
- * Host is sending data to ep0 that is not
- * part of setup. This comes from the cdc_recv_setup
- * op that is device specific.
- *
- * Pass the data back to driver ep0_recv_setup which
- * should give the cdc_recv_setup the chance to handle
- * the rx
- */
- u16 csr0;
- u16 count0;
-
- if (debug_level > 3) {
- if (0 != ep0_urb->actual_length) {
- serial_printf("%s finished ? %d of %d\n",
- __PRETTY_FUNCTION__,
- ep0_urb->actual_length,
- ep0_urb->device_request.wLength);
- }
- }
-
- if (ep0_urb->device_request.wLength == ep0_urb->actual_length) {
- musb_peri_ep0_last();
- SET_EP0_STATE(IDLE);
- ep0_recv_setup(ep0_urb);
- return;
- }
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- if (!(MUSB_CSR0_RXPKTRDY & csr0))
- return;
-
- count0 = readw(&musbr->ep[0].ep0.count0);
-
- if (count0) {
- struct usb_endpoint_instance *endpoint;
- u32 length;
- u8 *data;
-
- endpoint = ep0_endpoint;
- if (endpoint && endpoint->rcv_urb) {
- struct urb *urb = endpoint->rcv_urb;
- unsigned int remaining_space = urb->buffer_length -
- urb->actual_length;
-
- if (remaining_space) {
- int urb_bad = 0; /* urb is good */
-
- if (count0 > remaining_space)
- length = remaining_space;
- else
- length = count0;
-
- data = (u8 *) urb->buffer_data;
- data += urb->actual_length;
-
- /* The common musb fifo reader */
- read_fifo(0, length, data);
-
- musb_peri_ep0_ack_req();
-
- /*
- * urb's actual_length is updated in
- * usbd_rcv_complete
- */
- usbd_rcv_complete(endpoint, length, urb_bad);
-
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s no space in "
- "rcv buffer\n",
- __PRETTY_FUNCTION__);
- }
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s problem with "
- "endpoint\n",
- __PRETTY_FUNCTION__);
- }
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s with nothing to do\n",
- __PRETTY_FUNCTION__);
- }
-}
-
-static void musb_peri_ep0_tx(void)
-{
- u16 csr0;
- int transfer_size = 0;
- unsigned int p, pm;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
-
- /* Check for pending tx */
- if (csr0 & MUSB_CSR0_TXPKTRDY)
- goto end;
-
- /* Check if this is the last packet sent */
- if (ep0_endpoint->sent >= ep0_urb->actual_length) {
- SET_EP0_STATE(IDLE);
- goto end;
- }
-
- transfer_size = ep0_urb->actual_length - ep0_endpoint->sent;
- /* Is the transfer size negative ? */
- if (transfer_size <= 0) {
- if (debug_level > 0)
- serial_printf("ERROR : %s problem with the"
- " transfer size %d\n",
- __PRETTY_FUNCTION__,
- transfer_size);
- SET_EP0_STATE(IDLE);
- goto end;
- }
-
- /* Truncate large transfers to the fifo size */
- if (transfer_size > ep0_endpoint->tx_packetSize)
- transfer_size = ep0_endpoint->tx_packetSize;
-
- write_fifo(0, transfer_size, &ep0_urb->buffer[ep0_endpoint->sent]);
- ep0_endpoint->sent += transfer_size;
-
- /* Done or more to send ? */
- if (ep0_endpoint->sent >= ep0_urb->actual_length)
- musb_ep0_tx_ready_and_last();
- else
- musb_ep0_tx_ready();
-
- /* Wait a bit */
- pm = 10;
- for (p = 0; p < pm; p++) {
- csr0 = readw(&musbr->ep[0].ep0.csr0);
- if (!(csr0 & MUSB_CSR0_TXPKTRDY))
- break;
-
- /* Double the delay. */
- udelay(1 << pm);
- }
-
- if ((ep0_endpoint->sent >= ep0_urb->actual_length) && (p < pm))
- SET_EP0_STATE(IDLE);
-
-end:
- return;
-}
-
-static void musb_peri_ep0(void)
-{
- u16 csr0;
-
- if (SET_ADDRESS == ep0_state)
- return;
-
- csr0 = readw(&musbr->ep[0].ep0.csr0);
-
- /* Error conditions */
- if (MUSB_CSR0_P_SENTSTALL & csr0) {
- csr0 &= ~MUSB_CSR0_P_SENTSTALL;
- writew(csr0, &musbr->ep[0].ep0.csr0);
- SET_EP0_STATE(IDLE);
- }
- if (MUSB_CSR0_P_SETUPEND & csr0) {
- csr0 |= MUSB_CSR0_P_SVDSETUPEND;
- writew(csr0, &musbr->ep[0].ep0.csr0);
- SET_EP0_STATE(IDLE);
- if ((debug_setup) && (debug_level > 1))
- serial_printf("WARN: %s SETUPEND\n",
- __PRETTY_FUNCTION__);
- }
-
- /* Normal states */
- if (IDLE == ep0_state)
- musb_peri_ep0_idle();
-
- if (TX == ep0_state)
- musb_peri_ep0_tx();
-
- if (RX == ep0_state)
- musb_peri_ep0_rx();
-}
-
-static void musb_peri_rx_ep(unsigned int ep)
-{
- u16 peri_rxcount;
- u16 peri_rxcsr = readw(&musbr->ep[ep].epN.rxcsr);
-
- if (!(peri_rxcsr & MUSB_RXCSR_RXPKTRDY)) {
- if (debug_level > 0)
- serial_printf("ERROR : %s %d without MUSB_RXCSR_RXPKTRDY set\n",
- __PRETTY_FUNCTION__, ep);
- return;
- }
-
- peri_rxcount = readw(&musbr->ep[ep].epN.rxcount);
- if (peri_rxcount) {
- struct usb_endpoint_instance *endpoint;
- u32 length;
- u8 *data;
-
- endpoint = GET_ENDPOINT(udc_device, ep);
- if (endpoint && endpoint->rcv_urb) {
- struct urb *urb = endpoint->rcv_urb;
- unsigned int remaining_space = urb->buffer_length -
- urb->actual_length;
-
- if (remaining_space) {
- int urb_bad = 0; /* urb is good */
-
- if (peri_rxcount > remaining_space)
- length = remaining_space;
- else
- length = peri_rxcount;
-
- data = (u8 *) urb->buffer_data;
- data += urb->actual_length;
-
- /* The common musb fifo reader */
- read_fifo(ep, length, data);
-
- if (length == peri_rxcount)
- musb_peri_rx_ack(ep);
- else
- pending_intrrx |= (1 << ep);
-
- /*
- * urb's actual_length is updated in
- * usbd_rcv_complete
- */
- usbd_rcv_complete(endpoint, length, urb_bad);
-
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s %d no space "
- "in rcv buffer\n",
- __PRETTY_FUNCTION__, ep);
-
- pending_intrrx |= (1 << ep);
- }
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s %d problem with "
- "endpoint\n",
- __PRETTY_FUNCTION__, ep);
-
- pending_intrrx |= (1 << ep);
- }
-
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s %d with nothing to do\n",
- __PRETTY_FUNCTION__, ep);
-
- musb_peri_rx_ack(ep);
- }
-}
-
-static void musb_peri_rx(u16 intr)
-{
- unsigned int ep;
-
- /* First bit is reserved and does not indicate interrupt for EP0 */
-
- for (ep = 1; ep < 16; ep++) {
- if ((1 << ep) & intr)
- musb_peri_rx_ep(ep);
- }
-}
-
-static void musb_peri_tx(u16 intr)
-{
- unsigned int ep;
-
- /* Check for EP0: first bit indicates interrupt for both RX and TX */
- if (0x01 & intr)
- musb_peri_ep0();
-
- for (ep = 1; ep < 16; ep++) {
- if ((1 << ep) & intr)
- udc_endpoint_write(GET_ENDPOINT(udc_device, ep));
- }
-}
-
-void udc_irq(void)
-{
- /* This is a high freq called function */
- if (enabled) {
- u8 intrusb;
-
- intrusb = readb(&musbr->intrusb);
-
- /*
- * See drivers/usb/gadget/mpc8xx_udc.c for
- * state diagram going from detached through
- * configuration.
- */
- if (MUSB_INTR_RESUME & intrusb) {
- usbd_device_event_irq(udc_device,
- DEVICE_BUS_ACTIVITY, 0);
- musb_peri_resume();
- }
-
- if (MUSB_INTR_RESET & intrusb) {
- usbd_device_event_irq(udc_device, DEVICE_RESET, 0);
- musb_peri_reset();
- }
-
- if (MUSB_INTR_DISCONNECT & intrusb) {
- /* cable unplugged from hub/host */
- usbd_device_event_irq(udc_device, DEVICE_RESET, 0);
- musb_peri_reset();
- usbd_device_event_irq(udc_device, DEVICE_HUB_RESET, 0);
- }
-
- if (MUSB_INTR_SOF & intrusb) {
- usbd_device_event_irq(udc_device,
- DEVICE_BUS_ACTIVITY, 0);
- musb_peri_resume();
- }
-
- if (MUSB_INTR_SUSPEND & intrusb) {
- usbd_device_event_irq(udc_device,
- DEVICE_BUS_INACTIVE, 0);
- }
-
- if (ep0_state != SET_ADDRESS) {
- u16 intrrx, intrtx;
-
- intrrx = readw(&musbr->intrrx);
- intrtx = readw(&musbr->intrtx);
-
- intrrx |= pending_intrrx;
- pending_intrrx = 0;
-
- if (intrrx)
- musb_peri_rx(intrrx);
-
- if (intrtx)
- musb_peri_tx(intrtx);
- } else {
- if (readw(&musbr->intrtx) & 0x1) {
- u8 faddr;
- faddr = readb(&musbr->faddr);
- /*
- * Setting of the address can fail.
- * Normally it succeeds the second time.
- */
- if (udc_device->address != faddr)
- musb_peri_ep0_set_address();
- }
- }
- }
-}
-
-void udc_set_nak(int ep_num)
-{
- /* noop */
-}
-
-void udc_unset_nak(int ep_num)
-{
- /* noop */
-}
-
-int udc_endpoint_write(struct usb_endpoint_instance *endpoint)
-{
- int ret = 0;
-
- /* Transmit only if the hardware is available */
- if (endpoint->tx_urb && endpoint->state == 0) {
- unsigned int ep = endpoint->endpoint_address &
- USB_ENDPOINT_NUMBER_MASK;
-
- u16 peri_txcsr = readw(&musbr->ep[ep].epN.txcsr);
-
- /* Error conditions */
- if (peri_txcsr & MUSB_TXCSR_P_UNDERRUN) {
- peri_txcsr &= ~MUSB_TXCSR_P_UNDERRUN;
- writew(peri_txcsr, &musbr->ep[ep].epN.txcsr);
- }
-
- if (debug_level > 1)
- musb_print_txcsr(peri_txcsr);
-
- /* Check if a packet is waiting to be sent */
- if (!(peri_txcsr & MUSB_TXCSR_TXPKTRDY)) {
- u32 length;
- u8 *data;
- struct urb *urb = endpoint->tx_urb;
- unsigned int remaining_packet = urb->actual_length -
- endpoint->sent;
-
- if (endpoint->tx_packetSize < remaining_packet)
- length = endpoint->tx_packetSize;
- else
- length = remaining_packet;
-
- data = (u8 *) urb->buffer;
- data += endpoint->sent;
-
- /* common musb fifo function */
- write_fifo(ep, length, data);
-
- musb_peri_tx_ready(ep);
-
- endpoint->last = length;
- /* usbd_tx_complete will take care of updating 'sent' */
- usbd_tx_complete(endpoint);
- }
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s Problem with urb %p "
- "or ep state %d\n",
- __PRETTY_FUNCTION__,
- endpoint->tx_urb, endpoint->state);
- }
-
- return ret;
-}
-
-void udc_setup_ep(struct usb_device_instance *device, unsigned int id,
- struct usb_endpoint_instance *endpoint)
-{
- if (0 == id) {
- /* EP0 */
- ep0_endpoint = endpoint;
- ep0_endpoint->endpoint_address = 0xff;
- ep0_urb = usbd_alloc_urb(device, endpoint);
- } else if (MAX_ENDPOINT >= id) {
- epinfo[(id * 2) + 0].epsize = endpoint->rcv_packetSize;
- epinfo[(id * 2) + 1].epsize = endpoint->tx_packetSize;
- musb_configure_ep(&epinfo[0], ARRAY_SIZE(epinfo));
- } else {
- if (debug_level > 0)
- serial_printf("ERROR : %s endpoint request %d "
- "exceeds maximum %d\n",
- __PRETTY_FUNCTION__, id, MAX_ENDPOINT);
- }
-}
-
-void udc_connect(void)
-{
- /* noop */
-}
-
-void udc_disconnect(void)
-{
- /* noop */
-}
-
-void udc_enable(struct usb_device_instance *device)
-{
- /* Save the device structure pointer */
- udc_device = device;
-
- enabled = 1;
-}
-
-void udc_disable(void)
-{
- enabled = 0;
-}
-
-void udc_startup_events(struct usb_device_instance *device)
-{
- /* The DEVICE_INIT event puts the USB device in the state STATE_INIT. */
- usbd_device_event_irq(device, DEVICE_INIT, 0);
-
- /*
- * The DEVICE_CREATE event puts the USB device in the state
- * STATE_ATTACHED.
- */
- usbd_device_event_irq(device, DEVICE_CREATE, 0);
-
- /* Resets the address to 0 */
- usbd_device_event_irq(device, DEVICE_RESET, 0);
-
- udc_enable(device);
-}
-
-int udc_init(void)
-{
- int ret;
- int ep_loop;
-
- ret = musb_platform_init();
- if (ret < 0)
- goto end;
-
- /* Configure all the endpoint FIFO's and start usb controller */
- musbr = musb_cfg.regs;
-
- /* Initialize the endpoints */
- for (ep_loop = 0; ep_loop <= MAX_ENDPOINT * 2; ep_loop++) {
- epinfo[ep_loop].epnum = (ep_loop / 2) + 1;
- epinfo[ep_loop].epdir = ep_loop % 2; /* OUT, IN */
- epinfo[ep_loop].epsize = 0;
- }
-
- musb_peri_softconnect();
-
- ret = 0;
-end:
-
- return ret;
-}
diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c
deleted file mode 100644
index e5238bc02f89..000000000000
--- a/drivers/usb/musb/omap3.c
+++ /dev/null
@@ -1,129 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (c) 2009 Wind River Systems, Inc.
- * Tom Rix <Tom.Rix@windriver.com>
- *
- * This is file is based on
- * repository git.gitorious.org/u-boot-omap3/mainline.git,
- * branch omap3-dev-usb, file drivers/usb/host/omap3530_usb.c
- *
- * This is the unique part of its copyright :
- *
- * ------------------------------------------------------------------------
- *
- * Copyright (c) 2009 Texas Instruments
- *
- * ------------------------------------------------------------------------
- */
-
-#include <serial.h>
-#include <asm/omap_common.h>
-#include <twl4030.h>
-#include "omap3.h"
-
-static int platform_needs_initialization = 1;
-
-struct musb_config musb_cfg = {
- .regs = (struct musb_regs *)MENTOR_USB0_BASE,
- .timeout = OMAP3_USB_TIMEOUT,
- .musb_speed = 0,
-};
-
-/*
- * OMAP3 USB OTG registers.
- */
-struct omap3_otg_regs {
- u32 revision;
- u32 sysconfig;
- u32 sysstatus;
- u32 interfsel;
- u32 simenable;
- u32 forcestdby;
-};
-
-static struct omap3_otg_regs *otg;
-
-#define OMAP3_OTG_SYSCONFIG_SMART_STANDBY_MODE 0x2000
-#define OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE 0x1000
-#define OMAP3_OTG_SYSCONFIG_SMART_IDLE_MODE 0x0010
-#define OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE 0x0008
-#define OMAP3_OTG_SYSCONFIG_ENABLEWAKEUP 0x0004
-#define OMAP3_OTG_SYSCONFIG_SOFTRESET 0x0002
-#define OMAP3_OTG_SYSCONFIG_AUTOIDLE 0x0001
-
-#define OMAP3_OTG_SYSSTATUS_RESETDONE 0x0001
-
-#define OMAP3_OTG_INTERFSEL_OMAP 0x0001
-
-#define OMAP3_OTG_FORCESTDBY_STANDBY 0x0001
-
-#ifdef DEBUG_MUSB_OMAP3
-static void musb_db_otg_regs(void)
-{
- u32 l;
- l = readl(&otg->revision);
- serial_printf("OTG_REVISION 0x%x\n", l);
- l = readl(&otg->sysconfig);
- serial_printf("OTG_SYSCONFIG 0x%x\n", l);
- l = readl(&otg->sysstatus);
- serial_printf("OTG_SYSSTATUS 0x%x\n", l);
- l = readl(&otg->interfsel);
- serial_printf("OTG_INTERFSEL 0x%x\n", l);
- l = readl(&otg->forcestdby);
- serial_printf("OTG_FORCESTDBY 0x%x\n", l);
-}
-#endif
-
-int musb_platform_init(void)
-{
- int ret = -1;
-
- if (platform_needs_initialization) {
- u32 stdby;
-
- /*
- * OMAP3EVM uses ISP1504 phy and so
- * twl4030 related init is not required.
- */
-#ifdef CONFIG_TWL4030_USB
- if (twl4030_usb_ulpi_init()) {
- serial_printf("ERROR: %s Could not initialize PHY\n",
- __PRETTY_FUNCTION__);
- goto end;
- }
-#endif
-
- otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE;
-
- /* Set OTG to always be on */
- writel(OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE |
- OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE, &otg->sysconfig);
-
- /* Set the interface */
- writel(OMAP3_OTG_INTERFSEL_OMAP, &otg->interfsel);
-
- /* Clear force standby */
- stdby = readl(&otg->forcestdby);
- stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY;
- writel(stdby, &otg->forcestdby);
-
-#ifdef CONFIG_TARGET_OMAP3_EVM
- musb_cfg.extvbus = omap3_evm_need_extvbus();
-#endif
-
- platform_needs_initialization = 0;
- }
-
- ret = platform_needs_initialization;
-
-#ifdef CONFIG_TWL4030_USB
-end:
-#endif
- return ret;
-
-}
-
-void musb_platform_deinit(void)
-{
- /* noop */
-}
diff --git a/drivers/usb/musb/omap3.h b/drivers/usb/musb/omap3.h
deleted file mode 100644
index 78fdb2959bbf..000000000000
--- a/drivers/usb/musb/omap3.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (c) 2009 Wind River Systems, Inc.
- * Tom Rix <Tom.Rix@windriver.com>
- *
- * This file is based on the file drivers/usb/musb/davinci.h
- *
- * This is the unique part of its copyright:
- *
- * --------------------------------------------------------------------
- *
- * Copyright (c) 2008 Texas Instruments
- * Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
- *
- * --------------------------------------------------------------------
- */
-#ifndef _MUSB_OMAP3_H_
-#define _MUSB_OMAP3_H_
-
-#include <asm/arch/cpu.h>
-#include "musb_core.h"
-
-/* Base address of MUSB registers */
-#define MENTOR_USB0_BASE MUSB_BASE
-
-/* Base address of OTG registers */
-#define OMAP3_OTG_BASE (MENTOR_USB0_BASE + 0x400)
-
-/* Timeout for USB module */
-#define OMAP3_USB_TIMEOUT 0x3FFFFFF
-
-int musb_platform_init(void);
-
-#ifdef CONFIG_TARGET_OMAP3_EVM
-extern u8 omap3_evm_need_extvbus(void);
-#endif
-
-#endif /* _MUSB_OMAP3_H */
--
2.43.0
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