drivers/serial/serial_rockchip.c

   1 /*
   2  * Copyright (c) 2015 Google, Inc
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <debug_uart.h>
   9 #include <dm.h>
  10 #include <dt-structs.h>
  11 #include <ns16550.h>
  12 #include <serial.h>
  13 #include <asm/arch/clock.h>
  14
  15 struct rockchip_uart_platdata {
  16         struct dtd_rockchip_rk3288_uart dtplat;
  17         struct ns16550_platdata plat;
  18 };
  19
  20 struct dtd_rockchip_rk3288_uart *dtplat, s_dtplat;
  21
  22 static int rockchip_serial_probe(struct udevice *dev)
  23 {
  24         struct rockchip_uart_platdata *plat = dev_get_platdata(dev);
  25
  26         /* Create some new platform data for the standard driver */
  27         plat->plat.base = plat->dtplat.reg[0];
  28         plat->plat.reg_shift = plat->dtplat.reg_shift;
  29         plat->plat.clock = plat->dtplat.clock_frequency;
  30         dev->platdata = &plat->plat;
  31
  32         return ns16550_serial_probe(dev);
  33 }
  34
  35 U_BOOT_DRIVER(rockchip_rk3288_uart) = {
  36         .name   = "rockchip_rk3288_uart",
  37         .id     = UCLASS_SERIAL,
  38         .priv_auto_alloc_size = sizeof(struct NS16550),
  39         .platdata_auto_alloc_size = sizeof(struct rockchip_uart_platdata),
  40         .probe  = rockchip_serial_probe,
  41         .ops    = &ns16550_serial_ops,
  42         .flags  = DM_FLAG_PRE_RELOC,
  43 };