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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2021 Linaro, Rui Miguel Silva <rui.silva@linaro.org>
*
* based on original code from:
* (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
*/
#include <common.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/device_compat.h>
#include <dm/devres.h>
#include <dm/lists.h>
#include <linux/bug.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/usb/otg.h>
#include <log.h>
#include <usb.h>
#include "isp1760-core.h"
#include "isp1760-regs.h"
#include "isp1760-uboot.h"
static int isp1760_of_to_plat(struct udevice *dev)
{
struct isp1760_device *isp = dev_get_plat(dev);
unsigned int devflags = 0;
u32 bus_width = 0;
ofnode dp;
if (!dev_has_ofnode(dev)) {
/* select isp1763 as the default device */
devflags = ISP1760_FLAG_ISP1763 | ISP1760_FLAG_BUS_WIDTH_16;
pr_err("isp1760: no platform data\n");
goto isp_setup;
}
dp = dev_ofnode(dev);
if (ofnode_device_is_compatible(dp, "nxp,usb-isp1761"))
devflags |= ISP1760_FLAG_ISP1761;
if (ofnode_device_is_compatible(dp, "nxp,usb-isp1763"))
devflags |= ISP1760_FLAG_ISP1763;
/*
* Some systems wire up only 8 of 16 data lines or
* 16 of the 32 data lines
*/
bus_width = ofnode_read_u32_default(dp, "bus-width", 16);
if (bus_width == 16)
devflags |= ISP1760_FLAG_BUS_WIDTH_16;
else if (bus_width == 8)
devflags |= ISP1760_FLAG_BUS_WIDTH_8;
if (usb_get_dr_mode(dev_ofnode(dev)) == USB_DR_MODE_PERIPHERAL)
devflags |= ISP1760_FLAG_PERIPHERAL_EN;
if (ofnode_read_bool(dp, "analog-oc"))
devflags |= ISP1760_FLAG_ANALOG_OC;
if (ofnode_read_bool(dp, "dack-polarity"))
devflags |= ISP1760_FLAG_DACK_POL_HIGH;
if (ofnode_read_bool(dp, "dreq-polarity"))
devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
isp_setup:
isp->devflags = devflags;
isp->dev = dev;
return 0;
}
static int isp1760_plat_probe(struct udevice *dev)
{
struct isp1760_device *isp = dev_get_plat(dev);
struct resource mem_res;
struct resource irq_res;
int ret;
dev_read_resource(dev, 0, &mem_res);
dev_read_resource(dev, 1, &irq_res);
isp1760_init_kmem_once();
ret = isp1760_register(isp, &mem_res, irq_res.start, irq_res.flags);
if (ret < 0) {
isp1760_deinit_kmem_cache();
return ret;
}
return 0;
}
static int isp1760_plat_remove(struct udevice *dev)
{
struct isp1760_device *isp = dev_get_plat(dev);
isp1760_deinit_kmem_cache();
isp1760_unregister(isp);
return 0;
}
static const struct udevice_id isp1760_ids[] = {
{ .compatible = "nxp,usb-isp1760", },
{ .compatible = "nxp,usb-isp1761", },
{ .compatible = "nxp,usb-isp1763", },
{ },
};
U_BOOT_DRIVER(isp1760) = {
.name = "isp1760",
.id = UCLASS_USB,
.of_match = isp1760_ids,
.of_to_plat = isp1760_of_to_plat,
.ops = &isp1760_usb_ops,
.probe = isp1760_plat_probe,
.remove = isp1760_plat_remove,
.plat_auto = sizeof(struct isp1760_device),
.priv_auto = sizeof(struct isp1760_host_data),
};
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