55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* Copyright (c) 2014 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <ns16550.h>
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#include <serial.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define DEFAULT_CLK_SPEED 48000000 /* 48Mhz */
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#if CONFIG_IS_ENABLED(OF_CONTROL)
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static const struct udevice_id omap_serial_ids[] = {
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{ .compatible = "ti,omap2-uart" },
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{ .compatible = "ti,omap3-uart" },
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{ .compatible = "ti,omap4-uart" },
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{ .compatible = "ti,am3352-uart" },
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{ .compatible = "ti,am4372-uart" },
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{ .compatible = "ti,dra742-uart" },
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{ }
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};
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static int omap_serial_ofdata_to_platdata(struct udevice *dev)
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{
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struct ns16550_platdata *plat = dev_get_platdata(dev);
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int ret;
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ret = ns16550_serial_ofdata_to_platdata(dev);
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if (ret)
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return ret;
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plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
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"clock-frequency", DEFAULT_CLK_SPEED);
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plat->reg_shift = 2;
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return 0;
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}
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#endif
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U_BOOT_DRIVER(serial_omap_ns16550) = {
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.name = "serial_omap",
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.id = UCLASS_SERIAL,
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.of_match = of_match_ptr(omap_serial_ids),
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.ofdata_to_platdata = of_match_ptr(omap_serial_ofdata_to_platdata),
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.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
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.priv_auto_alloc_size = sizeof(struct NS16550),
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.probe = ns16550_serial_probe,
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.ops = &ns16550_serial_ops,
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.flags = DM_FLAG_PRE_RELOC,
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};
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