1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2015 Google, Inc
4 */
5
6 #include <debug_uart.h>
7 #include <dm.h>
8 #include <dt-structs.h>
9 #include <ns16550.h>
10 #include <serial.h>
11 #include <asm/arch-rockchip/clock.h>
12 #include <dm/device-internal.h>
13
14 struct rockchip_uart_plat {
15 #if CONFIG_IS_ENABLED(OF_PLATDATA)
16 struct dtd_rockchip_uart dtplat;
17 #endif
18 struct ns16550_plat plat;
19 };
20
21 #if CONFIG_IS_ENABLED(OF_PLATDATA)
22 struct dtd_rockchip_uart *dtplat, s_dtplat;
23 #endif
24
rockchip_serial_probe(struct udevice * dev)25 static int rockchip_serial_probe(struct udevice *dev)
26 {
27 #if CONFIG_IS_ENABLED(OF_PLATDATA)
28 struct rockchip_uart_plat *plat = dev_get_plat(dev);
29
30 /* Create some new platform data for the standard driver */
31 plat->plat.base = plat->dtplat.reg[0];
32 plat->plat.reg_shift = plat->dtplat.reg_shift;
33 plat->plat.clock = plat->dtplat.clock_frequency;
34 plat->plat.fcr = UART_FCR_DEFVAL;
35 dev_set_plat(dev, &plat->plat);
36
37 return ns16550_serial_probe(dev);
38 #else
39 return -ENODEV;
40 #endif
41 }
42
43 U_BOOT_DRIVER(rockchip_uart) = {
44 .name = "rockchip_uart",
45 .id = UCLASS_SERIAL,
46 .priv_auto = sizeof(struct ns16550),
47 .plat_auto = sizeof(struct rockchip_uart_plat),
48 .probe = rockchip_serial_probe,
49 .ops = &ns16550_serial_ops,
50 .flags = DM_FLAG_PRE_RELOC,
51 };
52 DM_DRIVER_ALIAS(rockchip_uart, rockchip_rk3066_uart)
53 DM_DRIVER_ALIAS(rockchip_uart, rockchip_rk3188_uart)
54 DM_DRIVER_ALIAS(rockchip_uart, rockchip_rk3288_uart)
55 DM_DRIVER_ALIAS(rockchip_uart, rockchip_rk3328_uart)
56 DM_DRIVER_ALIAS(rockchip_uart, rockchip_rk3368_uart)
57