mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
f6e7f07c17
In the Linux coding style, it is recommended to include <linux/io.h> rather than <asm/io.h>. Follow this trend. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
75 lines
1.4 KiB
C
75 lines
1.4 KiB
C
/*
|
|
* Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
#include <usb.h>
|
|
#include <mach/mio-regs.h>
|
|
#include <fdtdec.h>
|
|
#include "ehci.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define FDT gd->fdt_blob
|
|
#define COMPAT "socionext,uniphier-ehci"
|
|
|
|
static int get_uniphier_ehci_base(int index, struct ehci_hccr **base)
|
|
{
|
|
int offset;
|
|
|
|
for (offset = fdt_node_offset_by_compatible(FDT, 0, COMPAT);
|
|
offset >= 0;
|
|
offset = fdt_node_offset_by_compatible(FDT, offset, COMPAT)) {
|
|
if (index == 0) {
|
|
*base = (struct ehci_hccr *)
|
|
fdtdec_get_addr(FDT, offset, "reg");
|
|
return 0;
|
|
}
|
|
index--;
|
|
}
|
|
|
|
return -ENODEV; /* not found */
|
|
}
|
|
|
|
static void uniphier_ehci_reset(int index, int on)
|
|
{
|
|
u32 tmp;
|
|
|
|
tmp = readl(MIO_USB_RSTCTRL(index));
|
|
if (on)
|
|
tmp &= ~MIO_USB_RSTCTRL_XRST;
|
|
else
|
|
tmp |= MIO_USB_RSTCTRL_XRST;
|
|
writel(tmp, MIO_USB_RSTCTRL(index));
|
|
}
|
|
|
|
int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
|
|
struct ehci_hcor **hcor)
|
|
{
|
|
int ret;
|
|
struct ehci_hccr *cr;
|
|
struct ehci_hcor *or;
|
|
|
|
uniphier_ehci_reset(index, 0);
|
|
|
|
ret = get_uniphier_ehci_base(index, &cr);
|
|
if (ret < 0)
|
|
return ret;
|
|
or = (void *)cr + HC_LENGTH(ehci_readl(&cr->cr_capbase));
|
|
|
|
*hccr = cr;
|
|
*hcor = or;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ehci_hcd_stop(int index)
|
|
{
|
|
uniphier_ehci_reset(index, 1);
|
|
|
|
return 0;
|
|
}
|