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