serial.h 1.4 KB

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  1. /*
  2. * DaVinci serial device definitions
  3. *
  4. * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
  5. *
  6. * 2007 (c) MontaVista Software, Inc. This file is licensed under
  7. * the terms of the GNU General Public License version 2. This program
  8. * is licensed "as is" without any warranty of any kind, whether express
  9. * or implied.
  10. */
  11. #ifndef __ASM_ARCH_SERIAL_H
  12. #define __ASM_ARCH_SERIAL_H
  13. #include <asm/memory.h>
  14. #include <mach/hardware.h>
  15. /*
  16. * Stolen area that contains debug uart physical and virtual addresses. These
  17. * addresses are filled in by the uncompress.h code, and are used by the debug
  18. * macros in debug-macro.S.
  19. *
  20. * This area sits just below the page tables (see arch/arm/kernel/head.S).
  21. */
  22. #define DAVINCI_UART_INFO (PHYS_OFFSET + 0x3ff8)
  23. #define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
  24. #define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
  25. #define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
  26. #define DA8XX_UART0_BASE (IO_PHYS + 0x042000)
  27. #define DA8XX_UART1_BASE (IO_PHYS + 0x10c000)
  28. #define DA8XX_UART2_BASE (IO_PHYS + 0x10d000)
  29. /* DaVinci UART register offsets */
  30. #define UART_DAVINCI_PWREMU 0x0c
  31. #define UART_DM646X_SCR 0x10
  32. #define UART_DM646X_SCR_TX_WATERMARK 0x08
  33. #ifndef __ASSEMBLY__
  34. struct davinci_uart_config {
  35. /* Bit field of UARTs present; bit 0 --> UART1 */
  36. unsigned int enabled_uarts;
  37. };
  38. extern int davinci_serial_init(struct davinci_uart_config *);
  39. #endif
  40. #endif /* __ASM_ARCH_SERIAL_H */