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 #if defined(CONFIG_ROCKCHIP_RK3188)
  16 struct rockchip_uart_platdata {
  17         struct dtd_rockchip_rk3188_uart dtplat;
  18         struct ns16550_platdata plat;
  19 };
  20 struct dtd_rockchip_rk3188_uart *dtplat, s_dtplat;
  21 #elif defined(CONFIG_ROCKCHIP_RK3288)
  22 struct rockchip_uart_platdata {
  23         struct dtd_rockchip_rk3288_uart dtplat;
  24         struct ns16550_platdata plat;
  25 };
  26 struct dtd_rockchip_rk3288_uart *dtplat, s_dtplat;
  27 #endif
  28
  29 static int rockchip_serial_probe(struct udevice *dev)
  30 {
  31         struct rockchip_uart_platdata *plat = dev_get_platdata(dev);
  32
  33         /* Create some new platform data for the standard driver */
  34         plat->plat.base = plat->dtplat.reg[0];
  35         plat->plat.reg_shift = plat->dtplat.reg_shift;
  36         plat->plat.clock = plat->dtplat.clock_frequency;
  37         plat->plat.fcr = UART_FCR_DEFVAL;
  38         dev->platdata = &plat->plat;
  39
  40         return ns16550_serial_probe(dev);
  41 }
  42
  43 U_BOOT_DRIVER(rockchip_rk3188_uart) = {
  44         .name   = "rockchip_rk3188_uart",
  45         .id     = UCLASS_SERIAL,
  46         .priv_auto_alloc_size = sizeof(struct NS16550),
  47         .platdata_auto_alloc_size = sizeof(struct rockchip_uart_platdata),
  48         .probe  = rockchip_serial_probe,
  49         .ops    = &ns16550_serial_ops,
  50         .flags  = DM_FLAG_PRE_RELOC,
  51 };
  52
  53 U_BOOT_DRIVER(rockchip_rk3288_uart) = {
  54         .name   = "rockchip_rk3288_uart",
  55         .id     = UCLASS_SERIAL,
  56         .priv_auto_alloc_size = sizeof(struct NS16550),
  57         .platdata_auto_alloc_size = sizeof(struct rockchip_uart_platdata),
  58         .probe  = rockchip_serial_probe,
  59         .ops    = &ns16550_serial_ops,
  60         .flags  = DM_FLAG_PRE_RELOC,
  61 };