serial.h 1.5 KB

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  1. /*
  2. * Copyright (C) 2009 Texas Instruments
  3. * Added OMAP4 support- Santosh Shilimkar <santosh.shilimkar@ti.com>
  4. *
  5. * This program is distributed in the hope that it will be useful,
  6. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  7. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  8. * GNU General Public License for more details.
  9. */
  10. #ifndef __ASM_ARCH_SERIAL_H
  11. #define __ASM_ARCH_SERIAL_H
  12. #include <linux/init.h>
  13. /*
  14. * Memory entry used for the DEBUG_LL UART configuration, relative to
  15. * start of RAM. See also uncompress.h and debug-macro.S.
  16. *
  17. * Note that using a memory location for storing the UART configuration
  18. * has at least two limitations:
  19. *
  20. * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the
  21. * uncompress code could then partially overwrite itself
  22. * 2. We assume printascii is called at least once before paging_init,
  23. * and addruart has a chance to read OMAP_UART_INFO
  24. */
  25. #define OMAP_UART_INFO_OFS 0x3ffc
  26. /* OMAP1 serial ports */
  27. #define OMAP1_UART1_BASE 0xfffb0000
  28. #define OMAP1_UART2_BASE 0xfffb0800
  29. #define OMAP1_UART3_BASE 0xfffb9800
  30. #define OMAP_PORT_SHIFT 2
  31. #define OMAP7XX_PORT_SHIFT 0
  32. #define OMAP1510_BASE_BAUD (12000000/16)
  33. #define OMAP16XX_BASE_BAUD (48000000/16)
  34. /*
  35. * DEBUG_LL port encoding stored into the UART1 scratchpad register by
  36. * decomp_setup in uncompress.h
  37. */
  38. #define OMAP1UART1 11
  39. #define OMAP1UART2 12
  40. #define OMAP1UART3 13
  41. #ifndef __ASSEMBLER__
  42. extern void omap_serial_init(void);
  43. #endif
  44. #endif