smsc_lpc47m.c 893 B

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
  4. */
  5. #include <common.h>
  6. #include <asm/io.h>
  7. #include <asm/pnp_def.h>
  8. static void pnp_enter_conf_state(u16 dev)
  9. {
  10. u16 port = dev >> 8;
  11. outb(0x55, port);
  12. }
  13. static void pnp_exit_conf_state(u16 dev)
  14. {
  15. u16 port = dev >> 8;
  16. outb(0xaa, port);
  17. }
  18. void lpc47m_enable_serial(uint dev, uint iobase, uint irq)
  19. {
  20. pnp_enter_conf_state(dev);
  21. pnp_set_logical_device(dev);
  22. pnp_set_enable(dev, 0);
  23. pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
  24. pnp_set_irq(dev, PNP_IDX_IRQ0, irq);
  25. pnp_set_enable(dev, 1);
  26. pnp_exit_conf_state(dev);
  27. }
  28. void lpc47m_enable_kbc(uint dev, uint irq0, uint irq1)
  29. {
  30. pnp_enter_conf_state(dev);
  31. pnp_set_logical_device(dev);
  32. pnp_set_enable(dev, 0);
  33. pnp_set_irq(dev, PNP_IDX_IRQ0, irq0);
  34. pnp_set_irq(dev, PNP_IDX_IRQ1, irq1);
  35. pnp_set_enable(dev, 1);
  36. pnp_exit_conf_state(dev);
  37. }