3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
7 * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
10 * Texas Instruments, <www.ti.com>
11 * Kshitij Gupta <Kshitij@ti.com>
15 * Philippe Robin, <philippe.robin@arm.com>
17 * See file CREDITS for list of people who contributed to this
20 * This program is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU General Public License as
22 * published by the Free Software Foundation; either version 2 of
23 * the License, or (at your option) any later version.
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
42 void flash__init (void);
43 void ether__init (void);
44 void peripheral_power_enable (void);
46 #if defined(CONFIG_SHOW_BOOT_PROGRESS)
47 void show_boot_progress(int progress)
49 printf("Boot reached stage %d\n", progress);
53 #define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
55 static inline void delay (unsigned long loops)
57 __asm__ volatile ("1:\n"
59 "bne 1b":"=r" (loops):"0" (loops));
63 * Miscellaneous platform dependent initialisations
68 DECLARE_GLOBAL_DATA_PTR;
70 /* arch number of Integrator Board */
71 gd->bd->bi_arch_number = 21;
73 /* adress of boot parameters */
74 gd->bd->bi_boot_params = 0x00000100;
83 int misc_init_r (void)
88 setenv("verify", "n");
93 * Initialize PCI Devices, report devices found.
97 #ifndef CONFIG_PCI_PNP
99 static struct pci_config_table pci_integrator_config_table[] = {
100 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
101 pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
103 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
108 // V3 access routines
109 #define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v))
110 #define _V3Read16(o) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)))
112 #define _V3Write32(o,v) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned int)(v))
113 #define _V3Read32(o) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)))
115 // Compute address necessary to access PCI config space for the given
117 #define PCI_CONFIG_ADDRESS( __bus, __devfn, __offset ) \
119 unsigned int __address, __devicebit; \
120 unsigned short __mapaddress; \
121 unsigned int __dev = PCI_DEV(__devfn); /* FIXME to check!! (slot?) */ \
124 /* local bus segment so need a type 0 config cycle */ \
125 /* build the PCI configuration "address" with one-hot in A31-A11 */ \
126 __address = PCI_CONFIG_BASE; \
127 __address |= ((__devfn & 0x07) << 8); \
128 __address |= __offset & 0xFF; \
129 __mapaddress = 0x000A; /* 101=>config cycle, 0=>A1=A0=0 */ \
130 __devicebit = (1 << (__dev + 11)); \
132 if ((__devicebit & 0xFF000000) != 0) { \
133 /* high order bits are handled by the MAP register */ \
134 __mapaddress |= (__devicebit >> 16); \
136 /* low order bits handled directly in the address */ \
137 __address |= __devicebit; \
139 } else { /* bus !=0 */ \
140 /* not the local bus segment so need a type 1 config cycle */ \
141 /* A31-A24 are don't care (so clear to 0) */ \
142 __mapaddress = 0x000B; /* 101=>config cycle, 1=>A1&A0 from PCI_CFG */ \
143 __address = PCI_CONFIG_BASE; \
144 __address |= ((__bus & 0xFF) << 16); /* bits 23..16 = bus number */ \
145 __address |= ((__dev & 0x1F) << 11); /* bits 15..11 = device number */ \
146 __address |= ((__devfn & 0x07) << 8); /* bits 10..8 = function number*/ \
147 __address |= __offset & 0xFF; /* bits 7..0 = register number*/ \
149 _V3Write16(V3_LB_MAP1, __mapaddress); \
154 // _V3OpenConfigWindow - open V3 configuration window
155 #define _V3OpenConfigWindow() \
157 /* Set up base0 to see all 512Mbytes of memory space (not */ \
158 /* prefetchable), this frees up base1 for re-use by configuration*/ \
161 _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \
162 0x90 | V3_LB_BASE_M_ENABLE)); \
163 /* Set up base1 to point into configuration space, note that MAP1 */ \
164 /* register is set up by pciMakeConfigAddress(). */ \
166 _V3Write32 (V3_LB_BASE1, ((CPU_PCI_CNFG_ADRS & 0xFFF00000) | \
167 0x40 | V3_LB_BASE_M_ENABLE)); \
170 // _V3CloseConfigWindow - close V3 configuration window
171 #define _V3CloseConfigWindow() \
173 /* Reassign base1 for use by prefetchable PCI memory */ \
174 _V3Write32 (V3_LB_BASE1, (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) \
175 | 0x84 | V3_LB_BASE_M_ENABLE)); \
176 _V3Write16 (V3_LB_MAP1, \
177 (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) >> 16) | 0x0006); \
179 /* And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */ \
181 _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \
182 0x80 | V3_LB_BASE_M_ENABLE)); \
186 static int pci_integrator_read_byte(struct pci_controller *hose, pci_dev_t dev,
187 int offset, unsigned char *val)
189 _V3OpenConfigWindow();
190 *val = *(volatile unsigned char *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset);
191 _V3CloseConfigWindow();
196 static int pci_integrator_read__word(struct pci_controller *hose, pci_dev_t dev,
197 int offset, unsigned short *val)
199 _V3OpenConfigWindow();
200 *val = *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset);
201 _V3CloseConfigWindow();
206 static int pci_integrator_read_dword(struct pci_controller *hose, pci_dev_t dev,
207 int offset, unsigned int *val)
209 _V3OpenConfigWindow();
210 *val = *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset);
211 *val |= (*(volatile unsigned int *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), (offset+2))) << 16;
212 _V3CloseConfigWindow();
217 static int pci_integrator_write_byte(struct pci_controller *hose, pci_dev_t dev,
218 int offset, unsigned char val)
220 _V3OpenConfigWindow();
221 *(volatile unsigned char *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset) = val;
222 _V3CloseConfigWindow();
227 static int pci_integrator_write_word(struct pci_controller *hose, pci_dev_t dev,
228 int offset,unsigned short val)
230 _V3OpenConfigWindow();
231 *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset) = val;
232 _V3CloseConfigWindow();
237 static int pci_integrator_write_dword(struct pci_controller *hose, pci_dev_t dev,
238 int offset, unsigned int val)
240 _V3OpenConfigWindow();
241 *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset) = (val & 0xFFFF);
242 *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), (offset + 2)) = ((val >> 16) & 0xFFFF);
243 _V3CloseConfigWindow();
248 /******************************
250 ******************************/
252 struct pci_controller integrator_hose = {
253 #ifndef CONFIG_PCI_PNP
254 config_table: pci_integrator_config_table,
258 void pci_init_board(void)
261 struct pci_controller *hose = &integrator_hose;
263 /* setting this register will take the V3 out of reset */
265 *(volatile unsigned int *)(INTEGRATOR_SC_PCIENABLE) = 1;
267 /* wait a few usecs to settle the device and the PCI bus */
269 for (i = 0; i < 100 ; i++)
272 /* Now write the Base I/O Address Word to V3_BASE + 0x6C */
274 *(volatile unsigned short *)(V3_BASE + V3_LB_IO_BASE) = (unsigned short)(V3_BASE >> 16);
277 *(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA) = 0xAA;
278 *(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA + 4) = 0x55;
279 } while (*(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA) != 0xAA ||
280 *(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA + 4) != 0x55);
282 /* Make sure that V3 register access is not locked, if it is, unlock it */
284 if ((*(volatile unsigned short *)(V3_BASE + V3_SYSTEM) & V3_SYSTEM_M_LOCK)
286 *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) = 0xA05F;
288 /* Ensure that the slave accesses from PCI are disabled while we */
291 *(volatile unsigned short *)(V3_BASE + V3_PCI_CMD) &=
292 ~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN);
294 /* Clear RST_OUT to 0; keep the PCI bus in reset until we've finished */
296 *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) &= ~V3_SYSTEM_M_RST_OUT;
298 /* Make all accesses from PCI space retry until we're ready for them */
300 *(volatile unsigned short *)(V3_BASE + V3_PCI_CFG) |= V3_PCI_CFG_M_RETRY_EN;
302 /* Set up any V3 PCI Configuration Registers that we absolutely have to */
303 /* LB_CFG controls Local Bus protocol. */
304 /* Enable LocalBus byte strobes for READ accesses too. */
305 /* set bit 7 BE_IMODE and bit 6 BE_OMODE */
307 *(volatile unsigned short *)(V3_BASE + V3_LB_CFG) |= 0x0C0;
309 /* PCI_CMD controls overall PCI operation. */
310 /* Enable PCI bus master. */
312 *(volatile unsigned short *)(V3_BASE + V3_PCI_CMD) |= 0x04;
314 /* PCI_MAP0 controls where the PCI to CPU memory window is on Local Bus*/
316 *(volatile unsigned int *)(V3_BASE + V3_PCI_MAP0) = (INTEGRATOR_BOOT_ROM_BASE) |
317 (V3_PCI_MAP_M_ADR_SIZE_512M |
318 V3_PCI_MAP_M_REG_EN |
319 V3_PCI_MAP_M_ENABLE);
321 /* PCI_BASE0 is the PCI address of the start of the window */
323 *(volatile unsigned int *)(V3_BASE + V3_PCI_BASE0) = INTEGRATOR_BOOT_ROM_BASE;
325 /* PCI_MAP1 is LOCAL address of the start of the window */
327 *(volatile unsigned int *)(V3_BASE + V3_PCI_MAP1) = (INTEGRATOR_HDR0_SDRAM_BASE) |
328 (V3_PCI_MAP_M_ADR_SIZE_1024M | V3_PCI_MAP_M_REG_EN |
329 V3_PCI_MAP_M_ENABLE);
331 /* PCI_BASE1 is the PCI address of the start of the window */
333 *(volatile unsigned int *)(V3_BASE + V3_PCI_BASE1) = INTEGRATOR_HDR0_SDRAM_BASE;
335 /* Set up the windows from local bus memory into PCI configuration, */
336 /* I/O and Memory. */
337 /* PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this. */
339 *(volatile unsigned short *)(V3_BASE +V3_LB_BASE2) =
340 ((CPU_PCI_IO_ADRS >> 24) << 8) | V3_LB_BASE_M_ENABLE;
341 *(volatile unsigned short *)(V3_BASE + V3_LB_MAP2) = 0;
343 /* PCI Configuration, use LB_BASE1/LB_MAP1. */
345 /* PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1 */
346 /* Map first 256Mbytes as non-prefetchable via BASE0/MAP0 */
347 /* (INTEGRATOR_PCI_BASE == PCI_MEM_BASE) */
349 *(volatile unsigned int *)(V3_BASE + V3_LB_BASE0) =
350 INTEGRATOR_PCI_BASE | (0x80 | V3_LB_BASE_M_ENABLE);
352 *(volatile unsigned short *)(V3_BASE + V3_LB_MAP0) =
353 ((INTEGRATOR_PCI_BASE >> 20) << 0x4) | 0x0006;
355 /* Map second 256 Mbytes as prefetchable via BASE1/MAP1 */
357 *(volatile unsigned int *)(V3_BASE + V3_LB_BASE1) =
358 INTEGRATOR_PCI_BASE | (0x84 | V3_LB_BASE_M_ENABLE);
360 *(volatile unsigned short *)(V3_BASE + V3_LB_MAP1) =
361 (((INTEGRATOR_PCI_BASE + 0x10000000) >> 20) << 4) | 0x0006;
363 /* Allow accesses to PCI Configuration space */
364 /* and set up A1, A0 for type 1 config cycles */
366 *(volatile unsigned short *)(V3_BASE + V3_PCI_CFG) =
367 ((*(volatile unsigned short *)(V3_BASE + V3_PCI_CFG)) &
368 ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1) ) |
369 V3_PCI_CFG_M_AD_LOW0;
371 /* now we can allow in PCI MEMORY accesses */
373 *(volatile unsigned short *)(V3_BASE + V3_PCI_CMD) =
374 (*(volatile unsigned short *)(V3_BASE + V3_PCI_CMD)) | V3_COMMAND_M_MEM_EN;
376 /* Set RST_OUT to take the PCI bus is out of reset, PCI devices can */
377 /* initialise and lock the V3 system register so that no one else */
378 /* can play with it */
380 *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) =
381 (*(volatile unsigned short *)(V3_BASE + V3_SYSTEM)) | V3_SYSTEM_M_RST_OUT;
383 *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) =
384 (*(volatile unsigned short *)(V3_BASE + V3_SYSTEM)) | V3_SYSTEM_M_LOCK;
389 hose->first_busno = 0;
390 hose->last_busno = 0xff;
392 /* System memory space */
393 pci_set_region(hose->regions + 0,
394 0x00000000, 0x40000000, 0x01000000,
395 PCI_REGION_MEM | PCI_REGION_MEMORY);
397 /* PCI Memory - config space */
398 pci_set_region(hose->regions + 1,
399 0x00000000, 0x62000000, 0x01000000,
403 pci_set_region(hose->regions + 2,
404 0x00000000, 0x61000000, 0x00080000,
408 pci_set_region(hose->regions + 3,
409 0x00000000, 0x60000000, 0x00010000,
413 pci_integrator_read_byte,
414 pci_integrator_read__word,
415 pci_integrator_read_dword,
416 pci_integrator_write_byte,
417 pci_integrator_write_word,
418 pci_integrator_write_dword);
420 hose->region_count = 4;
422 pci_register_hose(hose);
424 pciauto_config_init(hose);
425 pciauto_config_device(hose, 0);
427 hose->last_busno = pci_hose_scan(hose);
431 /******************************
434 ******************************/
435 void flash__init (void)
438 /*************************************************************
440 Description: take the Ethernet controller out of reset and wait
441 for the EEPROM load to complete.
442 *************************************************************/
443 void ether__init (void)
447 /******************************
450 ******************************/