mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-15 07:43:07 +00:00
c69cda25c9
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
107 lines
2.1 KiB
C
107 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* dwc3-of-simple.c - OF glue layer for simple integrations
|
|
*
|
|
* Copyright (c) 2015 Texas Instruments Incorporated - http://www.ti.com
|
|
*
|
|
* Author: Felipe Balbi <balbi@ti.com>
|
|
*
|
|
* Copyright (C) 2018 BayLibre, SAS
|
|
* Author: Neil Armstrong <narmstron@baylibre.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <reset.h>
|
|
#include <clk.h>
|
|
|
|
struct dwc3_of_simple {
|
|
struct clk_bulk clks;
|
|
struct reset_ctl_bulk resets;
|
|
};
|
|
|
|
static int dwc3_of_simple_reset_init(struct udevice *dev,
|
|
struct dwc3_of_simple *simple)
|
|
{
|
|
int ret;
|
|
|
|
ret = reset_get_bulk(dev, &simple->resets);
|
|
if (ret == -ENOTSUPP)
|
|
return 0;
|
|
else if (ret)
|
|
return ret;
|
|
|
|
ret = reset_deassert_bulk(&simple->resets);
|
|
if (ret) {
|
|
reset_release_bulk(&simple->resets);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_of_simple_clk_init(struct udevice *dev,
|
|
struct dwc3_of_simple *simple)
|
|
{
|
|
int ret;
|
|
|
|
ret = clk_get_bulk(dev, &simple->clks);
|
|
if (ret == -ENOSYS)
|
|
return 0;
|
|
if (ret)
|
|
return ret;
|
|
|
|
#if CONFIG_IS_ENABLED(CLK)
|
|
ret = clk_enable_bulk(&simple->clks);
|
|
if (ret) {
|
|
clk_release_bulk(&simple->clks);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_of_simple_probe(struct udevice *dev)
|
|
{
|
|
struct dwc3_of_simple *simple = dev_get_plat(dev);
|
|
int ret;
|
|
|
|
ret = dwc3_of_simple_clk_init(dev, simple);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = dwc3_of_simple_reset_init(dev, simple);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_of_simple_remove(struct udevice *dev)
|
|
{
|
|
struct dwc3_of_simple *simple = dev_get_plat(dev);
|
|
|
|
reset_release_bulk(&simple->resets);
|
|
|
|
clk_release_bulk(&simple->clks);
|
|
|
|
return dm_scan_fdt_dev(dev);
|
|
}
|
|
|
|
static const struct udevice_id dwc3_of_simple_ids[] = {
|
|
{ .compatible = "amlogic,meson-gxl-dwc3" },
|
|
{ .compatible = "rockchip,rk3399-dwc3" },
|
|
{ .compatible = "ti,dwc3" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(dwc3_of_simple) = {
|
|
.name = "dwc3-of-simple",
|
|
.id = UCLASS_SIMPLE_BUS,
|
|
.of_match = dwc3_of_simple_ids,
|
|
.probe = dwc3_of_simple_probe,
|
|
.remove = dwc3_of_simple_remove,
|
|
.plat_auto = sizeof(struct dwc3_of_simple),
|
|
.flags = DM_FLAG_ALLOC_PRIV_DMA,
|
|
};
|