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