u-boot/drivers/serial/serial_tegra.c
Simon Glass bc0b28427a dm: tegra: Add platform data for the SPL uart
Since we currently don't have device tree available in SPL, add platform
data so the uart works.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21 08:14:02 +01:00

55 lines
1.1 KiB
C

/*
* Copyright (c) 2014 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <ns16550.h>
#include <serial.h>
#ifdef CONFIG_OF_CONTROL
static const struct udevice_id tegra_serial_ids[] = {
{ .compatible = "nvidia,tegra20-uart" },
{ }
};
static int tegra_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 = V_NS16550_CLK;
return 0;
}
#else
struct ns16550_platdata tegra_serial = {
.base = CONFIG_SYS_NS16550_COM1,
.reg_shift = 2,
.clock = V_NS16550_CLK,
};
U_BOOT_DEVICE(ns16550_serial) = {
"serial_tegra20", &tegra_serial
};
#endif
U_BOOT_DRIVER(serial_ns16550) = {
.name = "serial_tegra20",
.id = UCLASS_SERIAL,
#ifdef CONFIG_OF_CONTROL
.of_match = tegra_serial_ids,
.ofdata_to_platdata = tegra_serial_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
#endif
.priv_auto_alloc_size = sizeof(struct NS16550),
.probe = ns16550_serial_probe,
.ops = &ns16550_serial_ops,
.flags = DM_FLAG_PRE_RELOC,
};