git.sur5r.net Git - u-boot/blob - drivers/serial/serial_keystone.c

   1 /*
   2  * Copyright (c) 2015 Texas Instruments, <www.ti.com>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <fdtdec.h>
  10 #include <ns16550.h>
  11 #include <serial.h>
  12 #include <asm/arch/clock.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 #if CONFIG_IS_ENABLED(OF_CONTROL)
  17 static const struct udevice_id keystone_serial_ids[] = {
  18         { .compatible = "ti,keystone-uart" },
  19         { .compatible = "ns16550a" },
  20         { }
  21 };
  22
  23 static int keystone_serial_ofdata_to_platdata(struct udevice *dev)
  24 {
  25         struct ns16550_platdata *plat = dev_get_platdata(dev);
  26         int ret;
  27
  28         ret = ns16550_serial_ofdata_to_platdata(dev);
  29         if (ret)
  30                 return ret;
  31         plat->clock = CONFIG_SYS_NS16550_CLK;
  32         return 0;
  33 }
  34 #endif
  35
  36 U_BOOT_DRIVER(serial_keystone_ns16550) = {
  37         .name   = "serial_keystone",
  38         .id     = UCLASS_SERIAL,
  39 #if CONFIG_IS_ENABLED(OF_CONTROL)
  40         .of_match = of_match_ptr(keystone_serial_ids),
  41         .ofdata_to_platdata = of_match_ptr(keystone_serial_ofdata_to_platdata),
  42         .platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
  43 #endif
  44         .priv_auto_alloc_size = sizeof(struct NS16550),
  45         .probe = ns16550_serial_probe,
  46         .ops    = &ns16550_serial_ops,
  47         .flags  = DM_FLAG_PRE_RELOC,
  48 };