arch/ppc/platforms/sandpoint.h

   1 /*
   2  * Definitions for Motorola SPS Sandpoint Test Platform
   3  *
   4  * Author: Mark A. Greer
   5  *         mgreer@mvista.com
   6  *
   7  * 2000-2003 (c) MontaVista, Software, Inc.  This file is licensed under
   8  * the terms of the GNU General Public License version 2.  This program
   9  * is licensed "as is" without any warranty of any kind, whether express
  10  * or implied.
  11  */
  12
  13 /*
  14  * Sandpoint uses the CHRP map (Map B).
  15  */
  16
  17 #ifndef __PPC_PLATFORMS_SANDPOINT_H
  18 #define __PPC_PLATFORMS_SANDPOINT_H
  19
  20 #include <asm/ppcboot.h>
  21
  22 #if 0
  23 /* The Sandpoint X3 allows the IDE interrupt to be directly connected
  24  * from the Windbond (PCI INTC or INTD) to the serial EPIC.  Someday
  25  * we should try this, but it was easier to use the existing 83c553
  26  * initialization than change it to route the different interrupts :-).
  27  *      -- Dan
  28  */
  29 #define SANDPOINT_IDE_INT0              23      /* EPIC 7 */
  30 #define SANDPOINT_IDE_INT1              24      /* EPIC 8 */
  31 #else
  32 #define SANDPOINT_IDE_INT0              14      /* 8259 Test */
  33 #define SANDPOINT_IDE_INT1              15      /* 8259 Test */
  34 #endif
  35
  36 /*
  37  * The sandpoint boards have processor modules that either have an 8240 or
  38  * an MPC107 host bridge on them.  These bridges have an IDSEL line that allows
  39  * them to respond to PCI transactions as if they were a normal PCI devices.
  40  * However, the processor on the processor side of the bridge can not reach
  41  * out onto the PCI bus and then select the bridge or bad things will happen
  42  * (documented in the 8240 and 107 manuals).
  43  * Because of this, we always skip the bridge PCI device when accessing the
  44  * PCI bus.  The PCI slot that the bridge occupies is defined by the macro
  45  * below.
  46  */
  47 #define SANDPOINT_HOST_BRIDGE_IDSEL     12
  48
  49 /*
  50  * Serial defines.
  51  */
  52 #define SANDPOINT_SERIAL_0              0xfe0003f8
  53 #define SANDPOINT_SERIAL_1              0xfe0002f8
  54
  55 #define RS_TABLE_SIZE  2
  56
  57 /* Rate for the 1.8432 Mhz clock for the onboard serial chip */
  58 #define BASE_BAUD                       ( 1843200 / 16 )
  59 #define UART_CLK                        1843200
  60
  61 #ifdef CONFIG_SERIAL_DETECT_IRQ
  62 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_AUTO_IRQ)
  63 #else
  64 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF)
  65 #endif
  66
  67 #define STD_SERIAL_PORT_DFNS \
  68         { 0, BASE_BAUD, SANDPOINT_SERIAL_0, 4, STD_COM_FLAGS, /* ttyS0 */ \
  69                 iomem_base: (u8 *)SANDPOINT_SERIAL_0,                     \
  70                 io_type: SERIAL_IO_MEM },                                 \
  71         { 0, BASE_BAUD, SANDPOINT_SERIAL_1, 3, STD_COM_FLAGS, /* ttyS1 */ \
  72                 iomem_base: (u8 *)SANDPOINT_SERIAL_1,                     \
  73                 io_type: SERIAL_IO_MEM },
  74
  75 #define SERIAL_PORT_DFNS \
  76         STD_SERIAL_PORT_DFNS
  77
  78 #endif /* __PPC_PLATFORMS_SANDPOINT_H */