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8#include <common.h>
9#include <dm.h>
10#include <ns16550.h>
11#include <serial.h>
12#include <asm/cb_sysinfo.h>
13
14static int coreboot_of_to_plat(struct udevice *dev)
15{
16 struct ns16550_plat *plat = dev_get_plat(dev);
17 struct cb_serial *cb_info = lib_sysinfo.serial;
18
19 plat->base = cb_info->baseaddr;
20 plat->reg_shift = cb_info->regwidth == 4 ? 2 : 0;
21 plat->reg_width = cb_info->regwidth;
22 plat->clock = cb_info->input_hertz;
23 plat->fcr = UART_FCR_DEFVAL;
24 plat->flags = 0;
25 if (cb_info->type == CB_SERIAL_TYPE_IO_MAPPED)
26 plat->flags |= NS16550_FLAG_IO;
27
28 return 0;
29}
30
31static const struct udevice_id coreboot_serial_ids[] = {
32 { .compatible = "coreboot-serial" },
33 { },
34};
35
36U_BOOT_DRIVER(coreboot_uart) = {
37 .name = "coreboot_uart",
38 .id = UCLASS_SERIAL,
39 .of_match = coreboot_serial_ids,
40 .priv_auto = sizeof(struct ns16550),
41 .plat_auto = sizeof(struct ns16550_plat),
42 .of_to_plat = coreboot_of_to_plat,
43 .probe = ns16550_serial_probe,
44 .ops = &ns16550_serial_ops,
45 .flags = DM_FLAG_PRE_RELOC,
46};
47