include/asm-v850/rte_nb85e_cb.h

   1 /*
   2  * include/asm-v850/rte_nb85e_cb.h -- Midas labs RTE-V850/NB85E-CB board
   3  *
   4  *  Copyright (C) 2001,02,03  NEC Electronics Corporation
   5  *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General
   8  * Public License.  See the file COPYING in the main directory of this
   9  * archive for more details.
  10  *
  11  * Written by Miles Bader <miles@gnu.org>
  12  */
  13
  14 #ifndef __V850_RTE_NB85E_CB_H__
  15 #define __V850_RTE_NB85E_CB_H__
  16
  17 #include <asm/rte_cb.h>         /* Common defs for Midas RTE-CB boards.  */
  18
  19
  20 #define PLATFORM                "rte-v850e/nb85e-cb"
  21 #define PLATFORM_LONG           "Midas lab RTE-V850E/NB85E-CB"
  22
  23 #define CPU_CLOCK_FREQ          50000000 /* 50MHz */
  24
  25 /* 1MB of onboard SRAM.  Note that the monitor ROM uses parts of this
  26    for its own purposes, so care must be taken.  */
  27 #define SRAM_ADDR               0x03C00000
  28 #define SRAM_SIZE               0x00100000 /* 1MB */
  29
  30 /* 16MB of onbard SDRAM.  */
  31 #define SDRAM_ADDR              0x01000000
  32 #define SDRAM_SIZE              0x01000000 /* 16MB */
  33
  34
  35 /* CPU addresses of GBUS memory spaces.  */
  36 #define GCS0_ADDR               0x00400000 /* GCS0 - Common SRAM (2MB) */
  37 #define GCS0_SIZE               0x00400000 /*   4MB */
  38 #define GCS1_ADDR               0x02000000 /* GCS1 - Flash ROM (8MB) */
  39 #define GCS1_SIZE               0x00800000 /*   8MB */
  40 #define GCS2_ADDR               0x03900000 /* GCS2 - I/O registers */
  41 #define GCS2_SIZE               0x00080000 /*   512KB */
  42 #define GCS3_ADDR               0x02800000 /* GCS3 - EXT-bus: memory space */
  43 #define GCS3_SIZE               0x00800000 /*   8MB */
  44 #define GCS4_ADDR               0x03A00000 /* GCS4 - EXT-bus: I/O space */
  45 #define GCS4_SIZE               0x00200000 /*   2MB */
  46 #define GCS5_ADDR               0x00800000 /* GCS5 - PCI bus space */
  47 #define GCS5_SIZE               0x00800000 /*   8MB */
  48 #define GCS6_ADDR               0x03980000 /* GCS6 - PCI control registers */
  49 #define GCS6_SIZE               0x00010000 /*   64KB */
  50
  51
  52 /* The GBUS GINT0 - GINT3 interrupts are connected to CPU interrupts 10-12.
  53    These are shared among the GBUS interrupts.  */
  54 #define IRQ_GINT(n)             (10 + (n))
  55 #define IRQ_GINT_NUM            3
  56
  57 /* Used by <asm/rte_cb.h> to derive NUM_MACH_IRQS.  */
  58 #define NUM_RTE_CB_IRQS         NUM_CPU_IRQS
  59
  60
  61 #ifdef CONFIG_ROM_KERNEL
  62 /* Kernel is in ROM, starting at address 0.  */
  63
  64 #define INTV_BASE       0
  65
  66 #else /* !CONFIG_ROM_KERNEL */
  67 /* We're using the ROM monitor.  */
  68
  69 /* The chip's real interrupt vectors are in ROM, but they jump to a
  70    secondary interrupt vector table in RAM.  */
  71 #define INTV_BASE               0x03CF8000
  72
  73 /* Scratch memory used by the ROM monitor, which shouldn't be used by
  74    linux (except for the alternate interrupt vector area, defined
  75    above).  */
  76 #define MON_SCRATCH_ADDR        0x03CE8000
  77 #define MON_SCRATCH_SIZE        0x00018000 /* 96KB */
  78
  79 #endif /* CONFIG_ROM_KERNEL */
  80
  81
  82 /* Some misc. on-board devices.  */
  83
  84 /* Seven-segment LED display (two digits).  Write-only.  */
  85 #define LED_ADDR(n)     (0x03802000 + (n))
  86 #define LED(n)          (*(volatile unsigned char *)LED_ADDR(n))
  87 #define LED_NUM_DIGITS  4
  88
  89
  90 /* Override the basic TEG UART pre-initialization so that we can
  91    initialize extra stuff.  */
  92 #undef V850E_UART_PRE_CONFIGURE /* should be defined by <asm/teg.h> */
  93 #define V850E_UART_PRE_CONFIGURE        rte_nb85e_cb_uart_pre_configure
  94 #ifndef __ASSEMBLY__
  95 extern void rte_nb85e_cb_uart_pre_configure (unsigned chan,
  96                                              unsigned cflags, unsigned baud);
  97 #endif
  98
  99 /* This board supports RTS/CTS for the on-chip UART. */
 100
 101 /* CTS is pin P00.  */
 102 #define V850E_UART_CTS(chan)    (! (TEG_PORT0_IO & 0x1))
 103 /* RTS is pin P02.  */
 104 #define V850E_UART_SET_RTS(chan, val)                                         \
 105    do {                                                                       \
 106            unsigned old = TEG_PORT0_IO;                                       \
 107            TEG_PORT0_IO = val ? (old & ~0x4) : (old | 0x4);                   \
 108    } while (0)
 109
 110
 111 #endif /* __V850_RTE_NB85E_CB_H__ */