source: rtems/c/src/lib/libbsp/powerpc/gen5200/include/bsp.h @ 6e2fcea

4.104.114.9
Last change on this file since 6e2fcea was 6e2fcea, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 1, 2008 at 7:12:48 PM

2008-07-01 Joel Sherrill <joel.sherrill@…>

  • Makefile.am, include/bsp.h: Add bsp_uboot_getenv() to obtain U-Boot environment variables.
  • startup/uboot_support.c: New file.
  • Property mode set to 100644
File size: 6.9 KB
Line 
1/*===============================================================*\
2| Project: RTEMS generic MPC5200 BSP                              |
3+-----------------------------------------------------------------+
4| Partially based on the code references which are named below.   |
5| Adaptions, modifications, enhancements and any recent parts of  |
6| the code are:                                                   |
7|                    Copyright (c) 2005                           |
8|                    Embedded Brains GmbH                         |
9|                    Obere Lagerstr. 30                           |
10|                    D-82178 Puchheim                             |
11|                    Germany                                      |
12|                    rtems@embedded-brains.de                     |
13+-----------------------------------------------------------------+
14| The license and distribution terms for this file may be         |
15| found in the file LICENSE in this distribution or at            |
16|                                                                 |
17| http://www.rtems.com/license/LICENSE.                           |
18|                                                                 |
19+-----------------------------------------------------------------+
20| this file contains board specific definitions                   |
21\*===============================================================*/
22
23#ifndef __GEN5200_BSP_h
24#define __GEN5200_BSP_h
25
26/*
27 * distinguish board characteristics
28 */
29/*
30 * for PM520 mdule on a ZE30 carrier
31 */
32#if defined(PM520_ZE30)
33#define PM520
34#define GPIOPCR_INITMASK 0x337F3F77
35#define GPIOPCR_INITVAL  0x01552114
36/* we have PSC1/4/5/6 */
37/* #define GEN5200_UART_AVAIL_MASK 0x39 */
38#define GEN5200_UART_AVAIL_MASK 0x39
39#endif
40/*
41 * for PM520 mdule on a CR825 carrier
42 */
43#if defined(PM520_CR825)
44#define PM520
45#define GPIOPCR_INITMASK 0x330F0F77
46#define GPIOPCR_INITVAL  0x01050444
47/* we have PSC1/2/3*/
48#define GEN5200_UART_AVAIL_MASK 0x07
49#endif
50
51#if defined(BRS5L)
52/*
53 * IMD Custom Board BRS5L
54 */
55#define GPIOPCR_INITMASK 0xb30F0F77
56#define GPIOPCR_INITVAL  0x91050444
57/* we have PSC1/2/3 */
58#define GEN5200_UART_AVAIL_MASK 0x07
59/*
60 * address range definitions
61 */
62/* ROM definitions (2 MB) */
63#define ROM_START       0xFFE00000
64#define ROM_SIZE        0x00200000
65#define ROM_END         (ROM_START+ROM_SIZE-1)
66#define BOOT_START      ROM_START
67#define BOOT_END        ROM_END
68
69/* SDRAM definitions (256 MB) */
70#define RAM_START       0x00000000
71#define RAM_SIZE        0x10000000
72#define RAM_END         (RAM_START+RAM_SIZE-1)
73
74/* DPRAM definitions (64 KB) */
75#define DPRAM_START  0xFF000000
76#define DPRAM_END    0xFF0003FF
77
78/* internal memory map definitions (64 KB) */
79#define MBAR         0xF0000000
80
81/* we need the low level initialization in start.S*/
82#define NEED_LOW_LEVEL_INIT
83
84#define HAS_NVRAM_93CXX
85#elif defined (PM520)
86
87/*
88 * MicroSys PM520 internal memory map definitions
89 */
90#define MBAR         0xF0000000
91#define HAS_UBOOT
92
93#elif defined (icecube)
94/*
95 *  Codename: IceCube
96 *  Compatible Boards:
97 *     Freescape MPC5200LITE
98 *     Embedded Planet EP5200
99 */
100
101#define HAS_UBOOT
102
103/* These are copied from PM520 but seem to work so OK */
104#define GPIOPCR_INITMASK 0x330F0F77
105#define GPIOPCR_INITVAL  0x01050444
106
107/* we only have PSC1 */
108#define GEN5200_UART_AVAIL_MASK 0x01
109
110#define MBAR         0xF0000000
111
112/* We want to prompt for a reset and then reset the board */
113#define BSP_PRESS_KEY_FOR_RESET 1
114#define BSP_RESET_BOARD_AT_EXIT 1
115
116#else
117#error "board type not defined"
118#endif
119
120#ifndef ASM
121
122#ifdef __cplusplus
123extern "C" {
124#endif
125
126#include "bspopts.h"
127
128#include <rtems.h>
129#include <rtems/console.h>
130#include <rtems/clockdrv.h>
131#include <i2cdrv.h>
132#include <bsp/irq.h>
133#include <bsp/vectors.h>
134
135#if defined(HAS_UBOOT)
136/* This is the define U-Boot uses to configure which entries in the structure are valid */
137#define CONFIG_MPC5xxx
138#include <u-boot.h>
139
140extern bd_t *uboot_bdinfo_ptr;
141extern bd_t uboot_bdinfo_copy;
142#endif
143
144/*
145 * Network driver configuration
146 */
147struct rtems_bsdnet_ifconfig;
148extern int rtems_mpc5200_fec_driver_attach_detach (struct rtems_bsdnet_ifconfig *config, int attaching);
149#define RTEMS_BSP_NETWORK_DRIVER_NAME   "eth1"
150#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_mpc5200_fec_driver_attach_detach
151
152/* miscellaneous stuff assumed to exist */
153
154/*
155 * We need to decide how much memory will be non-cacheable. This
156 * will mainly be memory that will be used in DMA (network and serial
157 * buffers).
158 */
159/*
160#define NOCACHE_MEM_SIZE 512*1024
161*/
162
163/*
164 *  Stuff for Time Test 27
165 */
166#define MUST_WAIT_FOR_INTERRUPT 0
167
168/*
169 *  Device Driver Table Entries
170 */
171
172/*
173 * NOTE: Use the standard Console driver entry
174 */
175
176/*
177 * NOTE: Use the standard Clock driver entry
178 */
179
180#ifdef HAS_NVRAM_93CXX
181#define NVRAM_DRIVER_TABLE_ENTRY \
182  { nvram_driver_initialize, nvram_driver_open, nvram_driver_close, \
183    nvram_driver_read, nvram_driver_write, NULL }
184#endif
185
186#define RTC_DRIVER_TABLE_ENTRY \
187    { rtc_initialize, NULL, NULL, NULL, NULL, NULL }
188extern rtems_device_driver rtc_initialize(
189    rtems_device_major_number major,
190    rtems_device_minor_number minor,
191    void *arg
192);
193
194/*
195 * indicate, that BSP has IDE driver
196 */
197#define RTEMS_BSP_HAS_IDE_DRIVER
198
199/*
200 * How many libio files we want
201 */
202#define BSP_LIBIO_MAX_FDS       20
203
204/* functions */
205
206void bsp_cleanup(void);
207
208/* console modes (only termios) */
209#ifdef  PRINTK_MINOR
210#undef  PRINTK_MINOR
211#endif
212#define PRINTK_MINOR PSC1_MINOR
213
214#define SINGLE_CHAR_MODE
215/* #define UARTS_USE_TERMIOS_INT   1 */
216/* #define SHOW_MORE_INIT_SETTINGS 1 */
217
218/* ata modes */
219/* #undef ATA_USE_INT */
220#define ATA_USE_INT
221
222/* clock settings */
223#if defined(HAS_UBOOT)
224#define IPB_CLOCK (uboot_bdinfo_ptr->bi_ipbfreq)
225#define XLB_CLOCK (uboot_bdinfo_ptr->bi_busfreq)
226#define G2_CLOCK  (uboot_bdinfo_ptr->bi_intfreq)
227#else
228#define IPB_CLOCK 33000000   /* 33 MHz */
229#define XLB_CLOCK 66000000   /* 66 MHz */
230#define G2_CLOCK  231000000  /* 231 MHz */
231#endif
232
233#if defined(HAS_UBOOT)
234#define GEN5200_CONSOLE_BAUD (uboot_bdinfo_ptr->bi_baudrate)
235#else
236#define GEN5200_CONSOLE_BAUD 9600
237#endif
238
239/*
240 *  Convert decrement value to tenths of microsecnds (used by
241 *  shared timer driver).
242 *
243 *    + CPU has a XLB_CLOCK bus,
244 *    + There are 4 bus cycles per click
245 *    + We return value in 1/10 microsecond units.
246 *   Modified following equation to integer equation to remove
247 *   floating point math.
248 *   (int) ((float)(_value) / ((XLB_CLOCK/1000000 * 0.1) / 4.0))
249 */
250
251#define BSP_Convert_decrementer( _value ) \
252  (int) (((_value) * 4000) / (XLB_CLOCK/10000))
253
254/* slicetimer settings */
255#define USE_SLICETIMER_0     TRUE
256#define USE_SLICETIMER_1     FALSE
257
258Thread _Thread_Idle_body(uint32_t ignored);
259#define BSP_IDLE_TASK_BODY _Thread_Idle_body
260
261/* BSP specific IRQ Benchmarking support */
262void BSP_IRQ_Benchmarking_Reset(void);
263void BSP_IRQ_Benchmarking_Report(void);
264
265#if defined(HAS_UBOOT)
266  /* Routine to obtain U-Boot environment variables */
267  const char *bsp_uboot_getenv(
268    const char *name
269  );
270#endif
271
272#ifdef __cplusplus
273}
274#endif
275
276#endif /* ASM */
277
278#endif /* GEN5200 */
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