3 Copyright 2002 Broadcom Corp. All Rights Reserved.
5 This program is free software; you can distribute it and/or modify it
6 under the terms of the GNU General Public License (Version 2) as
7 published by the Free Software Foundation.
9 This program is distributed in the hope it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation, Inc.,
16 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
20 * Generic setup routines for Broadcom 963xx MIPS boards
23 #include <linux/config.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/kernel.h>
27 #include <linux/kdev_t.h>
28 #include <linux/types.h>
29 #include <linux/console.h>
30 #include <linux/sched.h>
32 #include <linux/slab.h>
33 #include <linux/module.h>
35 #include <asm/addrspace.h>
36 #include <asm/bcache.h>
39 #include <asm/reboot.h>
40 #include <asm/gdb-stub.h>
42 extern void brcm_timer_setup(struct irqaction *irq);
44 #if defined(CONFIG_BCM96348) && defined(CONFIG_PCI)
45 #include <linux/pci.h>
46 #include <linux/delay.h>
47 #include <bcm_map_part.h>
50 static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE);
53 /* This function should be in a board specific directory. For now,
54 * assume that all boards that include this file use a Broadcom chip
55 * with a soft reset bit in the PLL control register.
57 static void brcm_machine_restart(char *command)
59 const unsigned long ulSoftReset = 0x00000001;
60 unsigned long *pulPllCtrl = (unsigned long *) 0xfffe0008;
61 *pulPllCtrl |= ulSoftReset;
64 static void brcm_machine_halt(void)
66 printk("System halted\n");
70 #if defined(CONFIG_BCM96348) && defined(CONFIG_PCI)
72 static void mpi_SetLocalPciConfigReg(uint32 reg, uint32 value)
74 /* write index then value */
75 mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;;
76 mpi->pcicfgdata = value;
79 static uint32 mpi_GetLocalPciConfigReg(uint32 reg)
81 /* write index then get value */
82 mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;;
83 return mpi->pcicfgdata;
87 * mpi_ResetPcCard: Set/Reset the PcCard
89 static void mpi_ResetPcCard(int cardtype, BOOL bReset)
91 if (cardtype == MPI_CARDTYPE_NONE) {
95 if (cardtype == MPI_CARDTYPE_CARDBUS) {
100 mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET);
102 mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 | PCCARD_CARD_RESET);
107 * mpi_ConfigCs: Configure an MPI/EBI chip select
109 static void mpi_ConfigCs(uint32 cs, uint32 base, uint32 size, uint32 flags)
111 mpi->cs[cs].base = ((base & 0x1FFFFFFF) | size);
112 mpi->cs[cs].config = flags;
116 * mpi_InitPcmciaSpace
118 static void mpi_InitPcmciaSpace(void)
120 // ChipSelect 4 controls PCMCIA Memory accesses
121 mpi_ConfigCs(PCMCIA_COMMON_BASE, pcmciaMem, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE));
122 // ChipSelect 5 controls PCMCIA Attribute accesses
123 mpi_ConfigCs(PCMCIA_ATTRIBUTE_BASE, pcmciaAttr, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE));
124 // ChipSelect 6 controls PCMCIA I/O accesses
125 mpi_ConfigCs(PCMCIA_IO_BASE, pcmciaIo, EBI_SIZE_64K, (EBI_WORD_WIDE|EBI_ENABLE));
127 mpi->pcmcia_cntl2 = ((PCMCIA_ATTR_ACTIVE << RW_ACTIVE_CNT_BIT) |
128 (PCMCIA_ATTR_INACTIVE << INACTIVE_CNT_BIT) |
129 (PCMCIA_ATTR_CE_SETUP << CE_SETUP_CNT_BIT) |
130 (PCMCIA_ATTR_CE_HOLD << CE_HOLD_CNT_BIT));
132 mpi->pcmcia_cntl2 |= (PCMCIA_HALFWORD_EN | PCMCIA_BYTESWAP_DIS);
136 * cardtype_vcc_detect: PC Card's card detect and voltage sense connection
138 * CD1#/ CD2#/ VS1#/ VS2#/ Card Initial Vcc
139 * CCD1# CCD2# CVS1 CVS2 Type
141 * GND GND open open 16-bit 5 vdc
143 * GND GND GND open 16-bit 3.3 vdc
145 * GND GND open GND 16-bit x.x vdc
147 * GND GND GND GND 16-bit 3.3 & x.x vdc
149 *====================================================================
151 * CVS1 GND CCD1# open CardBus 3.3 vdc
153 * GND CVS2 open CCD2# CardBus x.x vdc
155 * GND CVS1 CCD2# open CardBus y.y vdc
157 * GND CVS2 GND CCD2# CardBus 3.3 & x.x vdc
159 * CVS2 GND open CCD1# CardBus x.x & y.y vdc
161 * GND CVS1 CCD2# open CardBus 3.3, x.x & y.y vdc
164 static int cardtype_vcc_detect(void)
169 cardtype = MPI_CARDTYPE_NONE;
170 mpi->pcmcia_cntl1 = 0x0000A000; // Turn on the output enables and drive
171 // the CVS pins to 0.
172 data32 = mpi->pcmcia_cntl1;
173 switch (data32 & 0x00000003) // Test CD1# and CD2#, see if card is plugged in.
175 case 0x00000003: // No Card is in the slot.
176 printk("mpi: No Card is in the PCMCIA slot\n");
179 case 0x00000002: // Partial insertion, No CD2#.
180 printk("mpi: Card in the PCMCIA slot partial insertion, no CD2 signal\n");
183 case 0x00000001: // Partial insertion, No CD1#.
184 printk("mpi: Card in the PCMCIA slot partial insertion, no CD1 signal\n");
188 mpi->pcmcia_cntl1 = 0x0000A0C0; // Turn off the CVS output enables and
189 // float the CVS pins.
191 data32 = mpi->pcmcia_cntl1;
192 // Read the Register.
193 switch (data32 & 0x0000000C) // See what is on the CVS pins.
195 case 0x00000000: // CVS1 and CVS2 are tied to ground, only 1 option.
196 printk("mpi: Detected 3.3 & x.x 16-bit PCMCIA card\n");
197 cardtype = MPI_CARDTYPE_PCMCIA;
200 case 0x00000004: // CVS1 is open or tied to CCD1/CCD2 and CVS2 is tied to ground.
201 // 2 valid voltage options.
202 switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2.
204 case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins.
205 // This is not a valid combination.
206 printk("mpi: Unknown card plugged into slot\n");
209 case 0x00000002: // CCD2 is tied to either CVS1 or CVS2.
210 mpi->pcmcia_cntl1 = 0x0000A080; // Drive CVS1 to a 0.
212 data32 = mpi->pcmcia_cntl1;
213 if (data32 & 0x00000002) { // CCD2 is tied to CVS2, not valid.
214 printk("mpi: Unknown card plugged into slot\n");
215 } else { // CCD2 is tied to CVS1.
216 printk("mpi: Detected 3.3, x.x and y.y Cardbus card\n");
217 cardtype = MPI_CARDTYPE_CARDBUS;
221 case 0x00000001: // CCD1 is tied to either CVS1 or CVS2.
222 // This is not a valid combination.
223 printk("mpi: Unknown card plugged into slot\n");
226 case 0x00000000: // CCD1 and CCD2 are tied to ground.
227 printk("mpi: Detected x.x vdc 16-bit PCMCIA card\n");
228 cardtype = MPI_CARDTYPE_PCMCIA;
233 case 0x00000008: // CVS2 is open or tied to CCD1/CCD2 and CVS1 is tied to ground.
234 // 2 valid voltage options.
235 switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2.
237 case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins.
238 // This is not a valid combination.
239 printk("mpi: Unknown card plugged into slot\n");
242 case 0x00000002: // CCD2 is tied to either CVS1 or CVS2.
243 mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0.
245 data32 = mpi->pcmcia_cntl1;
246 if (data32 & 0x00000002) { // CCD2 is tied to CVS1, not valid.
247 printk("mpi: Unknown card plugged into slot\n");
248 } else {// CCD2 is tied to CVS2.
249 printk("mpi: Detected 3.3 and x.x Cardbus card\n");
250 cardtype = MPI_CARDTYPE_CARDBUS;
254 case 0x00000001: // CCD1 is tied to either CVS1 or CVS2.
255 // This is not a valid combination.
256 printk("mpi: Unknown card plugged into slot\n");
259 case 0x00000000: // CCD1 and CCD2 are tied to ground.
260 cardtype = MPI_CARDTYPE_PCMCIA;
261 printk("mpi: Detected 3.3 vdc 16-bit PCMCIA card\n");
266 case 0x0000000C: // CVS1 and CVS2 are open or tied to CCD1/CCD2.
267 // 5 valid voltage options.
269 switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2.
271 case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins.
272 // This is not a valid combination.
273 printk("mpi: Unknown card plugged into slot\n");
276 case 0x00000002: // CCD2 is tied to either CVS1 or CVS2.
277 // CCD1 is tied to ground.
278 mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0.
280 data32 = mpi->pcmcia_cntl1;
281 if (data32 & 0x00000002) { // CCD2 is tied to CVS1.
282 printk("mpi: Detected y.y vdc Cardbus card\n");
283 } else { // CCD2 is tied to CVS2.
284 printk("mpi: Detected x.x vdc Cardbus card\n");
286 cardtype = MPI_CARDTYPE_CARDBUS;
289 case 0x00000001: // CCD1 is tied to either CVS1 or CVS2.
290 // CCD2 is tied to ground.
292 mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0.
294 data32 = mpi->pcmcia_cntl1;
295 if (data32 & 0x00000001) {// CCD1 is tied to CVS1.
296 printk("mpi: Detected 3.3 vdc Cardbus card\n");
297 } else { // CCD1 is tied to CVS2.
298 printk("mpi: Detected x.x and y.y Cardbus card\n");
300 cardtype = MPI_CARDTYPE_CARDBUS;
303 case 0x00000000: // CCD1 and CCD2 are tied to ground.
304 cardtype = MPI_CARDTYPE_PCMCIA;
305 printk("mpi: Detected 5 vdc 16-bit PCMCIA card\n");
311 printk("mpi: Unknown card plugged into slot\n");
320 * mpi_DetectPcCard: Detect the plugged in PC-Card
321 * Return: < 0 => Unknown card detected
322 * 0 => No card detected
323 * 1 => 16-bit card detected
324 * 2 => 32-bit CardBus card detected
326 static int mpi_DetectPcCard(void)
330 cardtype = cardtype_vcc_detect();
332 case MPI_CARDTYPE_PCMCIA:
333 mpi->pcmcia_cntl1 &= ~0x0000e000; // disable enable bits
334 //mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET);
335 mpi->pcmcia_cntl1 |= (PCMCIA_ENABLE | PCMCIA_GPIO_ENABLE);
336 mpi_InitPcmciaSpace();
337 mpi_ResetPcCard(cardtype, FALSE);
338 // Hold card in reset for 10ms
340 mpi_ResetPcCard(cardtype, TRUE);
341 // Let card come out of reset
344 case MPI_CARDTYPE_CARDBUS:
345 // 8 => CardBus Enable
346 // 1 => PCI Slot Number
347 // C => Float VS1 & VS2
348 mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & 0xFFFF0000) |
353 /* access to this memory window will be to/from CardBus */
354 mpi->l2pmremap1 |= CARDBUS_MEM;
356 // Need to reset the Cardbus Card. There's no CardManager to do this,
357 // and we need to be ready for PCI configuration.
358 mpi_ResetPcCard(cardtype, FALSE);
359 // Hold card in reset for 10ms
361 mpi_ResetPcCard(cardtype, TRUE);
362 // Let card come out of reset
371 static int mpi_init(void)
375 * Init the pci interface
377 data = GPIO->GPIOMode; // GPIO mode register
378 data |= GROUP2_PCI | GROUP1_MII_PCCARD; // PCI internal arbiter + Cardbus
379 GPIO->GPIOMode = data; // PCI internal arbiter
382 * In the BCM6348 CardBus support is defaulted to Slot 0
383 * because there is no external IDSEL for CardBus. To disable
384 * the CardBus and allow a standard PCI card in Slot 0
385 * set the cbus_idsel field to 0x1f.
388 uData = mpi->pcmcia_cntl1;
389 uData |= CARDBUS_IDSEL;
390 mpi->pcmcia_cntl1 = uData;
392 // Setup PCI I/O Window range. Give 64K to PCI I/O
393 mpi->l2piorange = ~(BCM_PCI_IO_SIZE_64KB-1);
394 // UBUS to PCI I/O base address
395 mpi->l2piobase = BCM_PCI_IO_BASE & BCM_PCI_ADDR_MASK;
396 // UBUS to PCI I/O Window remap
397 mpi->l2pioremap = (BCM_PCI_IO_BASE | MEM_WINDOW_EN);
399 // enable PCI related GPIO pins and data swap between system and PCI bus
400 mpi->locbuscntrl = (EN_PCI_GPIO | DIR_U2P_NOSWAP);
402 /* Enable 6348 BusMaster and Memory access mode */
403 data = mpi_GetLocalPciConfigReg(PCI_COMMAND);
404 data |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
405 mpi_SetLocalPciConfigReg(PCI_COMMAND, data);
407 /* Configure two 16 MByte PCI to System memory regions. */
408 /* These memory regions are used when PCI device is a bus master */
409 /* Accesses to the SDRAM from PCI bus will be "byte swapped" for this region */
410 mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_3, BCM_HOST_MEM_SPACE1);
413 /* Accesses to the SDRAM from PCI bus will not be "byte swapped" for this region */
414 mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_4, BCM_HOST_MEM_SPACE2);
416 mpi->pcimodesel |= (PCI_BAR2_NOSWAP | 0x40);
419 * Change 6348 PCI Cfg Reg. offset 0x40 to PCI memory read retry count infinity
420 * by set 0 in bit 8~15. This resolve read Bcm4306 srom return 0xffff in
423 data = mpi_GetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER);
424 data &= ~BRCM_PCI_CONFIG_TIMER_RETRY_MASK;
426 mpi_SetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER, data);
428 /* enable pci interrupt */
429 mpi->locintstat |= (EXT_PCI_INT << 16);
433 ioport_resource.start = BCM_PCI_IO_BASE;
434 ioport_resource.end = BCM_PCI_IO_BASE + BCM_PCI_IO_SIZE_64KB;
436 #if defined(CONFIG_USB)
437 PERF->blkEnables |= USBH_CLK_EN;
439 *USBH_NON_OHCI = NON_OHCI_BYTE_SWAP;
446 static int __init brcm63xx_setup(void)
448 extern int panic_timeout;
450 _machine_restart = brcm_machine_restart;
451 _machine_halt = brcm_machine_halt;
452 _machine_power_off = brcm_machine_halt;
454 board_timer_setup = brcm_timer_setup;
458 #if defined(CONFIG_BCM96348) && defined(CONFIG_PCI)
459 /* mpi initialization */
465 early_initcall(brcm63xx_setup);
467 /***************************************************************************
468 * C++ New and delete operator functions
469 ***************************************************************************/
471 /* void *operator new(unsigned int sz) */
472 void *_Znwj(unsigned int sz)
474 return( kmalloc(sz, GFP_KERNEL) );
477 /* void *operator new[](unsigned int sz)*/
478 void *_Znaj(unsigned int sz)
480 return( kmalloc(sz, GFP_KERNEL) );
483 /* placement new operator */
484 /* void *operator new (unsigned int size, void *ptr) */
485 void *ZnwjPv(unsigned int size, void *ptr)
490 /* void operator delete(void *m) */
496 /* void operator delete[](void *m) */
502 EXPORT_SYMBOL(_Znwj);
503 EXPORT_SYMBOL(_Znaj);
504 EXPORT_SYMBOL(ZnwjPv);
505 EXPORT_SYMBOL(_ZdlPv);
506 EXPORT_SYMBOL(_ZdaPv);