u-boot/drivers/serial/serial_rockchip.c
Simon Glass 765a1b1eb3 rockchip: Add serial support
Add support for the Rockchip serial device using the ns16550 driver.
This uses driver model and device tree for both SPL and U-Boot proper.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02 21:28:23 -06:00

43 lines
970 B
C

/*
* Copyright (c) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <ns16550.h>
#include <serial.h>
#include <asm/arch/clock.h>
static const struct udevice_id rockchip_serial_ids[] = {
{ .compatible = "rockchip,rk3288-uart" },
{ }
};
static int rockchip_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;
/* Do all Rockchip parts use 24MHz? */
plat->clock = 24 * 1000000;
return 0;
}
U_BOOT_DRIVER(serial_ns16550) = {
.name = "serial_rockchip",
.id = UCLASS_SERIAL,
.of_match = rockchip_serial_ids,
.ofdata_to_platdata = rockchip_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,
};