MPC8245 Internal Duart and Linux

[Greg Allen]

>{ 0, BASE_BAUD_8245_DUART, AMX2275_SERIAL_2, 9, STD_COM_FLAGS, /* ttyS2 */ \
>   iomem_base: (u8 *)AMX2275_SERIAL_2,                             \
>   io_type: SERIAL_IO_MEM },                                       \
>{ 0, BASE_BAUD_8245_DUART, AMX2275_SERIAL_3, 9, STD_COM_FLAGS, /* ttyS3 */ \
>   iomem_base: (u8 *)AMX2275_SERIAL_3,                             \
>   io_type: SERIAL_IO_MEM },

This may or may not be the problem, but your IRQs are faulty.

The internal 8245 IRQs are 137 and 138.

You need to call openpic_set_sources() before openpic_init() to get
these initialized.

My utx8245_init_IRQ() contains:

     openpic_set_sources(0, 32, NULL);       /* up to serial interrupt 15 */
     openpic_set_sources(129, 3, NULL);      /* MPC8245 I2C, DMA0, DMA1 */
     openpic_set_sources(134, 1, NULL);      /* MPC8245 Message Unit */
     openpic_set_sources(137, 2, NULL);      /* MPC8245 DUART */
     openpic_init(1, 0, 0, -1);

L8r,
-Greg
--
  Gregory E. Allen, MSEE Engineering Scientist
  Applied Research Laboratories:
  The University of Texas at Austin

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