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usb: musb: Remove legacy CONFIG_USB_DA8XX

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There don't appear to be any boards enabling CONFIG_USB_DA8XX,
and there is a newer version of the MUSB driver, so let's remove
the legacy version of it.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Adam Ford 2018-12-12 08:17:41 -06:00 committed by Marek Vasut
parent 66c65f0a91
commit f187ace80e
3 changed files with 0 additions and 132 deletions
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4
drivers/usb/musb/Kconfig
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@ -15,10 +15,6 @@ config USB_OMAP3
bool "Legacy MUSB OMAP3 / OMAP4"
depends on ARCH_OMAP2PLUS
config USB_DA8XX
bool "Legacy MUSB DA8xx/OMAP-L1x"
depends on ARCH_DAVINCI
config USB_AM35X
bool"Legacy MUSB AM35x"
depends on ARCH_OMAP2PLUS && !USB_OMAP3

1
drivers/usb/musb/Makefile
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@ -6,5 +6,4 @@
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_DA8XX) += da8xx.o
obj-$(CONFIG_USB_AM35X) += am35x.o

127
drivers/usb/musb/da8xx.c
View File

@ -1,127 +0,0 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* da8xx.c - TI's DA8xx platform specific usb wrapper functions.
*
* Author: Ajay Kumar Gupta <ajay.gupta@ti.com>
*
* Based on drivers/usb/musb/davinci.c
*
* Copyright (C) 2009 Texas Instruments Incorporated
*/
#include <common.h>
#include "musb_core.h"
#include <asm/arch/da8xx-usb.h>
/* MUSB platform configuration */
struct musb_config musb_cfg = {
.regs = (struct musb_regs *)DA8XX_USB_OTG_CORE_BASE,
.timeout = DA8XX_USB_OTG_TIMEOUT,
.musb_speed = 0,
};
/*
* This function enables VBUS by driving the GPIO Bank4 Pin 15 high.
*/
static void enable_vbus(void)
{
u32 value;
/* configure GPIO bank4 pin 15 in output direction */
value = readl(&davinci_gpio_bank45->dir);
writel((value & (~DA8XX_USB_VBUS_GPIO)), &davinci_gpio_bank45->dir);
/* set GPIO bank4 pin 15 high to drive VBUS */
value = readl(&davinci_gpio_bank45->set_data);
writel((value | DA8XX_USB_VBUS_GPIO), &davinci_gpio_bank45->set_data);
}
/*
* Enable the usb0 phy. This initialization procedure is explained in
* the DA8xx USB user guide document.
*/
static u8 phy_on(void)
{
u32 timeout;
u32 cfgchip2;
cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN |
CFGCHIP2_OTGMODE | CFGCHIP2_REFFREQ);
cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN | CFGCHIP2_PHY_PLLON |
CFGCHIP2_REFFREQ_24MHZ;
writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
/* wait until the usb phy pll locks */
timeout = musb_cfg.timeout;
while (timeout--)
if (readl(&davinci_syscfg_regs->cfgchip2) & CFGCHIP2_PHYCLKGD)
return 1;
/* USB phy was not turned on */
return 0;
}
/*
* Disable the usb phy
*/
static void phy_off(void)
{
u32 cfgchip2;
/*
* Power down the on-chip PHY.
*/
cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
cfgchip2 &= ~CFGCHIP2_PHY_PLLON;
cfgchip2 |= CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN;
writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
}
/*
* This function performs DA8xx platform specific initialization for usb0.
*/
int musb_platform_init(void)
{
u32 revision;
/* enable psc for usb2.0 */
lpsc_on(33);
/* enable usb vbus */
enable_vbus();
/* reset the controller */
writel(0x1, &da8xx_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(&da8xx_usb_regs->revision);
if (revision == 0)
return -1;
/* Disable all interrupts */
writel((DA8XX_USB_USBINT_MASK | DA8XX_USB_TXINT_MASK |
DA8XX_USB_RXINT_MASK), &da8xx_usb_regs->intmsk_set);
return 0;
}
/*
* This function performs DA8xx platform specific deinitialization for usb0.
*/
void musb_platform_deinit(void)
{
/* Turn of the phy */
phy_off();
/* flush any interrupts */
writel((DA8XX_USB_USBINT_MASK | DA8XX_USB_TXINT_MASK |
DA8XX_USB_RXINT_MASK), &da8xx_usb_regs->intmsk_clr);
writel(0, &da8xx_usb_regs->eoi);
}