RTEMS 6.3
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bsp.h
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1
8
9/*
10 * Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
11 *
12 * The license and distribution terms for this file may be
13 * found in the file LICENSE in this distribution or at
14 * http://www.rtems.org/license/LICENSE.
15 *
16 * Adapted for the mvme3100 BSP by T. Straumann, 2007.
17 */
18#ifndef LIBBSP_POWERPC_MVME3100_BSP_H
19#define LIBBSP_POWERPC_MVME3100_BSP_H
20
21#ifndef ASM
22
23#include <bspopts.h>
24#include <bsp/default-initial-extension.h>
25
26#include <rtems.h>
27#include <libcpu/io.h>
28#include <bsp/vectors.h>
29
39
40#define BSP_INTERRUPT_STACK_SIZE (16 * 1024)
41
42/*
43 * diagram illustrating the role of the configuration
44 * constants
45 * PCI_MEM_WIN0: CPU starting addr where PCI memory space is visible
46 * PCI_MEM_BASE: CPU address of PCI mem addr. zero. (regardless of this
47 * address being 'visible' or not!).
48 * _VME_A32_WIN0_ON_PCI: PCI starting addr of the 1st window to VME
49 * _VME_A32_WIN0_ON_VME: VME address of that same window
50 *
51 * AFAIK, only PreP boards have a non-zero PCI_MEM_BASE (i.e., an offset between
52 * CPU and PCI addresses). The mvme2300 'ppcbug' firmware configures the PCI
53 * bus using PCI base addresses! I.e., drivers need to add PCI_MEM_BASE to
54 * the base address read from PCI config.space in order to translate that
55 * into a CPU address.
56 *
57 * NOTE: VME addresses should NEVER be translated using these constants!
58 * they are strictly for BSP internal use. Drivers etc. should use
59 * the translation routines int VME.h (BSP_vme2local_adrs/BSP_local2vme_adrs).
60 *
61 * CPU ADDR PCI_ADDR VME ADDR
62 *
63 * 00000000 XXXXXXXX XXXXXXXX
64 * ^ ^ ........
65 * | |
66 * | | e.g., RAM XXXXXXXX
67 * | | 00000000
68 * | | ......... ^
69 * | | (possible offset |
70 * | | between pci and XXXXXXXX | ......
71 * | | cpu addresses) |
72 * | v |
73 * | PCI_MEM_BASE -------------> 00000000 --------------- |
74 * | ........ ........ ^ |
75 * | invisible | |
76 * | ........ from CPU | |
77 * v | |
78 * PCI_MEM_WIN0 ============= first visible PCI addr | |
79 * | |
80 * pci devices pci window | |
81 * visible here v v
82 * mapped by ========== _VME_A32_WIN0_ON_PCI ======= _VME_A32_WIN0_ON_VME
83 * vme window
84 * VME devices hostbridge mapped by
85 * visible here universe
86 * =====================================================
87 *
88 */
89
90/* fundamental addresses for BSP (CHRPxxx and PREPxxx are from libcpu/io.h) */
91#define _IO_BASE 0xe0000000 /* Motload's PCI IO base */
92#define _ISA_MEM_BASE CHRP_ISA_MEM_BASE
93/* address of our ram on the PCI bus */
94#define PCI_DRAM_OFFSET CHRP_PCI_DRAM_OFFSET
95/* offset of pci memory as seen from the CPU */
96#define PCI_MEM_BASE 0
97/* where (in CPU addr. space) does the PCI window start */
98#define PCI_MEM_WIN0 0x80000000
99
100/*
101 * Base address definitions for several devices
102 */
103
104#define BSP_OPEN_PIC_BASE_OFFSET 0x40000
105#define BSP_OPEN_PIC_BIG_ENDIAN
106
107#define BSP_8540_CCSR_BASE (0xe1000000)
108
109#define BSP_UART_IOBASE_COM1 (BSP_8540_CCSR_BASE+0x4500)
110#define BSP_UART_IOBASE_COM2 (BSP_8540_CCSR_BASE+0x4600)
111#define PCI_CONFIG_ADDR (BSP_8540_CCSR_BASE+0x8000)
112#define PCI_CONFIG_DATA (BSP_8540_CCSR_BASE+0x8004)
113#define PCI_CONFIG_WR_ADDR( addr, val ) out_be32((uint32_t*)(addr), (val))
114
115#define BSP_CONSOLE_PORT BSP_UART_COM1
116#define BSP_UART_BAUD_BASE (-9600) /* use existing divisor to determine clock rate */
117#define BSP_UART_USE_SHARED_IRQS
118
119#define BSP_MVME3100_IRQ_DETECT_REG ((volatile uint8_t *)0xe2000007)
120
121/* I2C Devices */
122/* Note that the i2c addresses stated in the manual are
123 * left-shifted by one bit.
124 */
125#define BSP_VPD_I2C_ADDR (0xA8>>1) /* the VPD EEPROM */
126#define BSP_USR0_I2C_ADDR (0xA4>>1) /* the 1st user EEPROM */
127#define BSP_USR1_I2C_ADDR (0xA6>>1) /* the 2nd user EEPROM */
128#define BSP_THM_I2C_ADDR (0x90>>1) /* the DS1621 temperature sensor & thermostat */
129#define BSP_RTC_I2C_ADDR (0xD0>>1) /* the DS1375 wall-clock */
130
131#define BSP_I2C_BUS_DESCRIPTOR mpc8540_i2c_bus_descriptor
132
133#define BSP_I2C_BUS0_NAME "/dev/i2c0"
134
135#define BSP_I2C_VPD_EEPROM_NAME "vpd-eeprom"
136#define BSP_I2C_USR_EEPROM_NAME "usr-eeprom"
137#define BSP_I2C_USR1_EEPROM_NAME "usr1-eeprom"
138#define BSP_I2C_DS1621_NAME "ds1621"
139#define BSP_I2C_THM_NAME BSP_I2C_DS1621_NAME
140#define BSP_I2C_DS1621_RAW_NAME "ds1621-raw"
141#define BSP_I2C_DS1375_RAW_NAME "ds1375-raw"
142#define BSP_I2C_RTC_RAW_NAME BSP_I2C_DS1375_RAW_NAME
143
144#define BSP_I2C_VPD_EEPROM_DEV_NAME (BSP_I2C_BUS0_NAME "." BSP_I2C_VPD_EEPROM_NAME)
145#define BSP_I2C_USR_EEPROM_DEV_NAME (BSP_I2C_BUS0_NAME "." BSP_I2C_USR_EEPROM_NAME)
146#define BSP_I2C_USR1_EEPROM_DEV_NAME (BSP_I2C_BUS0_NAME "." BSP_I2C_USR1_EEPROM_NAME)
147#define BSP_I2C_DS1621_DEV_NAME (BSP_I2C_BUS0_NAME "." BSP_I2C_DS1621_NAME)
148#define BSP_I2C_THM_DEV_NAME BSP_I2C_DS1621_DEV_NAME
149#define BSP_I2C_DS1621_RAW_DEV_NAME (BSP_I2C_BUS0_NAME "." BSP_I2C_DS1621_RAW_NAME)
150#define BSP_I2C_DS1375_RAW_DEV_NAME (BSP_I2C_BUS0_NAME "." BSP_I2C_DS1375_RAW_NAME)
151
152/* Definitions useful for bootloader (netboot); where to find
153 * boot/'environment' parameters.
154 */
155#define BSP_EEPROM_BOOTPARMS_NAME BSP_I2C_USR1_EEPROM_DEV_NAME
156#define BSP_EEPROM_BOOTPARMS_SIZE 1024
157#define BSP_EEPROM_BOOTPARMS_OFFSET 0
158#define BSP_BOOTPARMS_WRITE_ENABLE() do { BSP_eeprom_write_enable(); } while (0)
159#define BSP_BOOTPARMS_WRITE_DISABLE() do { BSP_eeprom_write_protect();} while (0)
160
161
162#ifdef __cplusplus
163extern "C" {
164#endif
165/* Initialize the I2C driver and register all devices
166 * RETURNS 0 on success, -1 on error.
167 *
168 * Access to the VPD and user EEPROMS as well
169 * as the ds1621 temperature sensor is possible
170 * by means of file nodes
171 *
172 * /dev/i2c0.vpd-eeprom (read-only)
173 * /dev/i2c0.usr-eeprom (read-write)
174 * /dev/i2c0.usr1-eeprom (read-write)
175 * /dev/i2c0.ds1621 (read-only; one byte: board-temp in degC)
176 * /dev/i2c0.ds1621-raw (read-write; transfer bytes to/from the ds1621)
177 * /dev/i2c0.ds1375-raw (read-write; transfer bytes to/from the ds1375)
178 *
179 */
180int BSP_i2c_initialize(void);
181
182/* System Control Register */
183#define BSP_MVME3100_SYS_CR ((volatile uint8_t *)0xe2000001)
184#define BSP_MVME3100_SYS_CR_RESET_MSK (7<<5)
185#define BSP_MVME3100_SYS_CR_RESET (5<<5)
186#define BSP_MVME3100_SYS_CR_EEPROM_WP (1<<1)
187#define BSP_MVME3100_SYS_CR_TSTAT_MSK (1<<0)
188
189/* LED support */
190#define BSP_MVME3100_SYS_IND_REG ((volatile uint8_t *)0xe2000002)
191#define BSP_LED_BRD_FAIL (1<<0)
192#define BSP_LED_USR1 (1<<1)
193#define BSP_LED_USR2 (1<<2)
194#define BSP_LED_USR3 (1<<3)
195
196/* Flash CSR */
197#define BSP_MVME3100_FLASH_CSR ((volatile uint8_t *)0xe2000003)
198#define BSP_MVME3100_FLASH_CSR_FLASH_RDY (1<<0)
199#define BSP_MVME3100_FLASH_CSR_FBT_BLK_SEL (1<<1)
200#define BSP_MVME3100_FLASH_CSR_F_WP_HW (1<<2)
201#define BSP_MVME3100_FLASH_CSR_F_WP_SW (1<<3)
202#define BSP_MVME3100_FLASH_CSR_MAP_SEL (1<<4)
203
204/* Phy interrupt detect */
205#define BSP_MVME3100_IRQ_DETECT_REG ((volatile uint8_t *)0xe2000007)
206
207/* Atomically set bits in a sys-register; The bits set in 'mask'
208 * are set in the register others; are left unmodified.
209 *
210 * RETURNS: old state.
211 *
212 * NOTE : since BSP_setSysReg( reg, 0 ) does not make
213 * any changes this call may be used
214 * to read the current status w/o modifying it.
215 */
216uint8_t BSP_setSysReg(volatile uint8_t *r, uint8_t mask);
217
218/* Atomically clear bits in a sys-register; The bits set in 'mask'
219 * are cleared in the register; others are left unmodified.
220 *
221 * RETURNS: old state.
222 *
223 * NOTE : since BSP_clrSysReg( reg, 0 ) does not make
224 * any changes this call may be used
225 * to read the current status w/o modifying it.
226 */
227
228uint8_t BSP_clrSysReg(volatile uint8_t *r, uint8_t mask);
229
230/* Convenience wrappers around BSP_setSysReg()/BSP_clrSysReg() */
231
232/* Set write-protection for all EEPROM devices
233 * RETURNS: old status
234 */
235uint8_t BSP_eeprom_write_protect(void);
236
237/* Disengage write-protection for all EEPROM devices
238 * RETURNS: old status
239 */
240uint8_t BSP_eeprom_write_enable(void);
241
242/* Set LEDs that have their bit set in the mask
243 *
244 * RETURNS: old status.
245 *
246 * NOTE : since BSP_setLEDs( 0 ) does not make
247 * any changes this call may be used
248 * to read the current status w/o modifying it.
249 */
250uint8_t BSP_setLEDs(uint8_t mask);
251
252/* Clear LEDs that have their bit set in the mask
253 *
254 * RETURNS: old status
255 *
256 * NOTE: : see above (BSP_setLEDs)
257 */
258uint8_t BSP_clrLEDs(uint8_t mask);
259
260#if 0
261#define outport_byte(port,value) outb(value,port)
262#define outport_word(port,value) outw(value,port)
263#define outport_long(port,value) outl(value,port)
264
265#define inport_byte(port,value) (value = inb(port))
266#define inport_word(port,value) (value = inw(port))
267#define inport_long(port,value) (value = inl(port))
268#endif
269
270/*
271 * Total memory using RESIDUAL DATA
272 */
273extern unsigned int BSP_mem_size;
274/*
275 * PCI Bus Frequency
276 */
277extern unsigned int BSP_bus_frequency;
278/*
279 * processor clock frequency
280 */
281extern unsigned int BSP_processor_frequency;
282/*
283 * Time base divisior (how many tick for 1 second).
284 */
285extern unsigned int BSP_time_base_divisor;
286/*
287 * The commandline as passed from the bootloader.
288 */
289extern char *BSP_commandline_string;
290
291#define BSP_Convert_decrementer( _value ) \
292 ((unsigned long long) ((((unsigned long long)BSP_time_base_divisor) * 1000000ULL) /((unsigned long long) BSP_bus_frequency)) * ((unsigned long long) (_value)))
293
294extern int BSP_disconnect_clock_handler (void);
295extern int BSP_connect_clock_handler (void);
296
297/* clear hostbridge errors
298 *
299 * NOTE: The routine returns always (-1) if 'enableMCP==1'
300 * [semantics needed by libbspExt] if the MCP input is not wired.
301 * It returns and clears the error bits of the PCI status register.
302 * MCP support is disabled because:
303 * a) the 2100 has no raven chip
304 * b) the raven (2300) would raise machine check interrupts
305 * on PCI config space access to empty slots.
306 */
307extern unsigned long _BSP_clear_hostbridge_errors(int enableMCP, int quiet);
308extern void BSP_motload_pci_fixup(void);
309
310struct rtems_bsdnet_ifconfig;
311
312int
313rtems_tsec_attach(struct rtems_bsdnet_ifconfig *ifcfg, int attaching);
314
315#define RTEMS_BSP_NETWORK_DRIVER_NAME "tse1"
316#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_tsec_attach
317
318/*
319 * Prototypes for methods called only from .S for dependency tracking
320 */
321char *save_boot_params(
322 void *r3,
323 void *r4,
324 void *r5,
325 char *cmdline_start,
326 char *cmdline_end
327);
328void zero_bss(void);
329
330/*
331 * Prototypes for methods in the BSP that cross file boundaries
332 */
333extern void BSP_vme_config(void);
334extern void BSP_pciConfigDump_early( void );
335
336#ifdef __cplusplus
337}
338#endif
339
340#endif /* !ASM */
341
343
344#endif
vectors.h
PowerPC Exceptions API.
default-initial-extension.h
This header file provides the default definition of BSP_INITIAL_EXTENSION.
rtems.h
This header file defines the RTEMS Classic API.
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