mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-23 16:11:54 +00:00
6e7df1d151
At this point, the remaining places where we have a symbol that is defined as CONFIG_... are in fairly odd locations. While as much dead code has been removed as possible, some of these locations are simply less obvious at first. In other cases, this code is used, but was defined in such a way as to have been missed by earlier checks. Perform a rename of all such remaining symbols to be CFG_... rather than CONFIG_... Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* OMAP ulpi viewport support
|
|
* Based on drivers/usb/ulpi/ulpi-viewport.c
|
|
*
|
|
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
|
|
* Author: Govindraj R <govindraj.raja@ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <log.h>
|
|
#include <asm/io.h>
|
|
#include <linux/delay.h>
|
|
#include <usb/ulpi.h>
|
|
|
|
#define OMAP_ULPI_WR_OPSEL (2 << 22)
|
|
#define OMAP_ULPI_RD_OPSEL (3 << 22)
|
|
#define OMAP_ULPI_START (1 << 31)
|
|
|
|
/*
|
|
* Wait for having ulpi in done state
|
|
*/
|
|
static int ulpi_wait(struct ulpi_viewport *ulpi_vp, u32 mask)
|
|
{
|
|
int timeout = CFG_USB_ULPI_TIMEOUT;
|
|
|
|
while (--timeout) {
|
|
if (!(readl(ulpi_vp->viewport_addr) & mask))
|
|
return 0;
|
|
|
|
udelay(1);
|
|
}
|
|
|
|
return ULPI_ERROR;
|
|
}
|
|
|
|
/*
|
|
* Issue a ULPI read/write request
|
|
*/
|
|
static int ulpi_request(struct ulpi_viewport *ulpi_vp, u32 value)
|
|
{
|
|
int err;
|
|
|
|
writel(value, ulpi_vp->viewport_addr);
|
|
|
|
err = ulpi_wait(ulpi_vp, OMAP_ULPI_START);
|
|
if (err)
|
|
debug("ULPI request timed out\n");
|
|
|
|
return err;
|
|
}
|
|
|
|
int ulpi_write(struct ulpi_viewport *ulpi_vp, u8 *reg, u32 value)
|
|
{
|
|
u32 val = OMAP_ULPI_START | (((ulpi_vp->port_num + 1) & 0xf) << 24) |
|
|
OMAP_ULPI_WR_OPSEL | ((u32)reg << 16) | (value & 0xff);
|
|
|
|
return ulpi_request(ulpi_vp, val);
|
|
}
|
|
|
|
u32 ulpi_read(struct ulpi_viewport *ulpi_vp, u8 *reg)
|
|
{
|
|
int err;
|
|
u32 val = OMAP_ULPI_START | (((ulpi_vp->port_num + 1) & 0xf) << 24) |
|
|
OMAP_ULPI_RD_OPSEL | ((u32)reg << 16);
|
|
|
|
err = ulpi_request(ulpi_vp, val);
|
|
if (err)
|
|
return err;
|
|
|
|
return readl(ulpi_vp->viewport_addr) & 0xff;
|
|
}
|