3
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5
* SPDX-License-Identifier: GPL-2.0+
7
/* PCI.c - PCI functions */
14
#include "../../Marvell/include/pci.h"
17
#undef IDE_SET_NATIVE_MODE
18
static unsigned int local_buses[] = { 0, 0 };
20
static const unsigned char pci_irq_swizzle[2][PCI_MAX_DEVICES] = {
21
{0, 0, 0, 0, 0, 0, 0, 27, 27, [9 ... PCI_MAX_DEVICES - 1] = 0 },
22
{0, 0, 0, 0, 0, 0, 0, 29, 29, [9 ... PCI_MAX_DEVICES - 1] = 0 },
25
#ifdef CONFIG_USE_CPCIDVI
31
static GT_CPCIDVI_ROM_T gt_cpcidvi_rom = {0, 0};
35
static const unsigned int pci_bus_list[] = { PCI_0_MODE, PCI_1_MODE };
36
static void gt_pci_bus_mode_display (PCI_HOST host)
41
mode = (GTREGREAD (pci_bus_list[host]) & (BIT4 | BIT5)) >> 4;
44
printf ("PCI %d bus mode: Conventional PCI\n", host);
47
printf ("PCI %d bus mode: 66 MHz PCIX\n", host);
50
printf ("PCI %d bus mode: 100 MHz PCIX\n", host);
53
printf ("PCI %d bus mode: 133 MHz PCIX\n", host);
56
printf ("Unknown BUS %d\n", mode);
61
static const unsigned int pci_p2p_configuration_reg[] = {
62
PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION
65
static const unsigned int pci_configuration_address[] = {
66
PCI_0CONFIGURATION_ADDRESS, PCI_1CONFIGURATION_ADDRESS
69
static const unsigned int pci_configuration_data[] = {
70
PCI_0CONFIGURATION_DATA_VIRTUAL_REGISTER,
71
PCI_1CONFIGURATION_DATA_VIRTUAL_REGISTER
74
static const unsigned int pci_error_cause_reg[] = {
75
PCI_0ERROR_CAUSE, PCI_1ERROR_CAUSE
78
static const unsigned int pci_arbiter_control[] = {
79
PCI_0ARBITER_CONTROL, PCI_1ARBITER_CONTROL
82
static const unsigned int pci_address_space_en[] = {
83
PCI_0_BASE_ADDR_REG_ENABLE, PCI_1_BASE_ADDR_REG_ENABLE
86
static const unsigned int pci_snoop_control_base_0_low[] = {
87
PCI_0SNOOP_CONTROL_BASE_0_LOW, PCI_1SNOOP_CONTROL_BASE_0_LOW
89
static const unsigned int pci_snoop_control_top_0[] = {
90
PCI_0SNOOP_CONTROL_TOP_0, PCI_1SNOOP_CONTROL_TOP_0
93
static const unsigned int pci_access_control_base_0_low[] = {
94
PCI_0ACCESS_CONTROL_BASE_0_LOW, PCI_1ACCESS_CONTROL_BASE_0_LOW
96
static const unsigned int pci_access_control_top_0[] = {
97
PCI_0ACCESS_CONTROL_TOP_0, PCI_1ACCESS_CONTROL_TOP_0
100
static const unsigned int pci_scs_bank_size[2][4] = {
101
{PCI_0SCS_0_BANK_SIZE, PCI_0SCS_1_BANK_SIZE,
102
PCI_0SCS_2_BANK_SIZE, PCI_0SCS_3_BANK_SIZE},
103
{PCI_1SCS_0_BANK_SIZE, PCI_1SCS_1_BANK_SIZE,
104
PCI_1SCS_2_BANK_SIZE, PCI_1SCS_3_BANK_SIZE}
107
static const unsigned int pci_p2p_configuration[] = {
108
PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION
112
/********************************************************************
113
* pciWriteConfigReg - Write to a PCI configuration register
114
* - Make sure the GT is configured as a master before writing
115
* to another device on the PCI.
116
* - The function takes care of Big/Little endian conversion.
119
* Inputs: unsigned int regOffset: The register offset as it apears in the GT spec
120
* (or any other PCI device spec)
121
* pciDevNum: The device number needs to be addressed.
123
* Configuration Address 0xCF8:
125
* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
126
* |congif|Reserved| Bus |Device|Function|Register|00|
127
* |Enable| |Number|Number| Number | Number | | <=field Name
129
*********************************************************************/
130
void pciWriteConfigReg (PCI_HOST host, unsigned int regOffset,
131
unsigned int pciDevNum, unsigned int data)
133
volatile unsigned int DataForAddrReg;
134
unsigned int functionNum;
135
unsigned int busNum = 0;
138
if (pciDevNum > 32) /* illegal device Number */
140
if (pciDevNum == SELF) { /* configure our configuration space. */
142
(GTREGREAD (pci_p2p_configuration_reg[host]) >> 24) &
144
busNum = GTREGREAD (pci_p2p_configuration_reg[host]) &
147
functionNum = regOffset & 0x00000700;
148
pciDevNum = pciDevNum << 11;
149
regOffset = regOffset & 0xfc;
151
(regOffset | pciDevNum | functionNum | busNum) | BIT31;
152
GT_REG_WRITE (pci_configuration_address[host], DataForAddrReg);
153
GT_REG_READ (pci_configuration_address[host], &addr);
154
if (addr != DataForAddrReg)
156
GT_REG_WRITE (pci_configuration_data[host], data);
159
/********************************************************************
160
* pciReadConfigReg - Read from a PCI0 configuration register
161
* - Make sure the GT is configured as a master before reading
162
* from another device on the PCI.
163
* - The function takes care of Big/Little endian conversion.
164
* INPUTS: regOffset: The register offset as it apears in the GT spec (or PCI
166
* pciDevNum: The device number needs to be addressed.
167
* RETURNS: data , if the data == 0xffffffff check the master abort bit in the
168
* cause register to make sure the data is valid
170
* Configuration Address 0xCF8:
172
* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
173
* |congif|Reserved| Bus |Device|Function|Register|00|
174
* |Enable| |Number|Number| Number | Number | | <=field Name
176
*********************************************************************/
177
unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,
178
unsigned int pciDevNum)
180
volatile unsigned int DataForAddrReg;
182
unsigned int functionNum;
183
unsigned int busNum = 0;
185
if (pciDevNum > 32) /* illegal device Number */
187
if (pciDevNum == SELF) { /* configure our configuration space. */
189
(GTREGREAD (pci_p2p_configuration_reg[host]) >> 24) &
191
busNum = GTREGREAD (pci_p2p_configuration_reg[host]) &
194
functionNum = regOffset & 0x00000700;
195
pciDevNum = pciDevNum << 11;
196
regOffset = regOffset & 0xfc;
198
(regOffset | pciDevNum | functionNum | busNum) | BIT31;
199
GT_REG_WRITE (pci_configuration_address[host], DataForAddrReg);
200
GT_REG_READ (pci_configuration_address[host], &data);
201
if (data != DataForAddrReg)
203
GT_REG_READ (pci_configuration_data[host], &data);
207
/********************************************************************
208
* pciOverBridgeWriteConfigReg - Write to a PCI configuration register where
209
* the agent is placed on another Bus. For more
210
* information read P2P in the PCI spec.
212
* Inputs: unsigned int regOffset - The register offset as it apears in the
213
* GT spec (or any other PCI device spec).
214
* unsigned int pciDevNum - The device number needs to be addressed.
215
* unsigned int busNum - On which bus does the Target agent connect
217
* unsigned int data - data to be written.
219
* Configuration Address 0xCF8:
221
* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
222
* |congif|Reserved| Bus |Device|Function|Register|01|
223
* |Enable| |Number|Number| Number | Number | | <=field Name
225
* The configuration Address is configure as type-I (bits[1:0] = '01') due to
226
* PCI spec referring to P2P.
228
*********************************************************************/
229
void pciOverBridgeWriteConfigReg (PCI_HOST host,
230
unsigned int regOffset,
231
unsigned int pciDevNum,
232
unsigned int busNum, unsigned int data)
234
unsigned int DataForReg;
235
unsigned int functionNum;
237
functionNum = regOffset & 0x00000700;
238
pciDevNum = pciDevNum << 11;
239
regOffset = regOffset & 0xff;
240
busNum = busNum << 16;
241
if (pciDevNum == SELF) { /* This board */
242
DataForReg = (regOffset | pciDevNum | functionNum) | BIT0;
244
DataForReg = (regOffset | pciDevNum | functionNum | busNum) |
247
GT_REG_WRITE (pci_configuration_address[host], DataForReg);
248
GT_REG_WRITE (pci_configuration_data[host], data);
252
/********************************************************************
253
* pciOverBridgeReadConfigReg - Read from a PCIn configuration register where
254
* the agent target locate on another PCI bus.
255
* - Make sure the GT is configured as a master
256
* before reading from another device on the PCI.
257
* - The function takes care of Big/Little endian
259
* INPUTS: regOffset: The register offset as it apears in the GT spec (or PCI
260
* spec). (configuration register offset.)
261
* pciDevNum: The device number needs to be addressed.
262
* busNum: the Bus number where the agent is place.
263
* RETURNS: data , if the data == 0xffffffff check the master abort bit in the
264
* cause register to make sure the data is valid
266
* Configuration Address 0xCF8:
268
* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
269
* |congif|Reserved| Bus |Device|Function|Register|01|
270
* |Enable| |Number|Number| Number | Number | | <=field Name
272
*********************************************************************/
273
unsigned int pciOverBridgeReadConfigReg (PCI_HOST host,
274
unsigned int regOffset,
275
unsigned int pciDevNum,
278
unsigned int DataForReg;
280
unsigned int functionNum;
282
functionNum = regOffset & 0x00000700;
283
pciDevNum = pciDevNum << 11;
284
regOffset = regOffset & 0xff;
285
busNum = busNum << 16;
286
if (pciDevNum == SELF) { /* This board */
287
DataForReg = (regOffset | pciDevNum | functionNum) | BIT31;
288
} else { /* agent on another bus */
290
DataForReg = (regOffset | pciDevNum | functionNum | busNum) |
293
GT_REG_WRITE (pci_configuration_address[host], DataForReg);
294
GT_REG_READ (pci_configuration_data[host], &data);
299
/********************************************************************
300
* pciGetRegOffset - Gets the register offset for this region config.
302
* INPUT: Bus, Region - The bus and region we ask for its base address.
304
* RETURNS: PCI register base address
305
*********************************************************************/
306
static unsigned int pciGetRegOffset (PCI_HOST host, PCI_REGION region)
312
return PCI_0I_O_LOW_DECODE_ADDRESS;
314
return PCI_0MEMORY0_LOW_DECODE_ADDRESS;
316
return PCI_0MEMORY1_LOW_DECODE_ADDRESS;
318
return PCI_0MEMORY2_LOW_DECODE_ADDRESS;
320
return PCI_0MEMORY3_LOW_DECODE_ADDRESS;
325
return PCI_1I_O_LOW_DECODE_ADDRESS;
327
return PCI_1MEMORY0_LOW_DECODE_ADDRESS;
329
return PCI_1MEMORY1_LOW_DECODE_ADDRESS;
331
return PCI_1MEMORY2_LOW_DECODE_ADDRESS;
333
return PCI_1MEMORY3_LOW_DECODE_ADDRESS;
336
return PCI_0MEMORY0_LOW_DECODE_ADDRESS;
339
static unsigned int pciGetRemapOffset (PCI_HOST host, PCI_REGION region)
345
return PCI_0I_O_ADDRESS_REMAP;
347
return PCI_0MEMORY0_ADDRESS_REMAP;
349
return PCI_0MEMORY1_ADDRESS_REMAP;
351
return PCI_0MEMORY2_ADDRESS_REMAP;
353
return PCI_0MEMORY3_ADDRESS_REMAP;
358
return PCI_1I_O_ADDRESS_REMAP;
360
return PCI_1MEMORY0_ADDRESS_REMAP;
362
return PCI_1MEMORY1_ADDRESS_REMAP;
364
return PCI_1MEMORY2_ADDRESS_REMAP;
366
return PCI_1MEMORY3_ADDRESS_REMAP;
369
return PCI_0MEMORY0_ADDRESS_REMAP;
372
/********************************************************************
373
* pciGetBaseAddress - Gets the base address of a PCI.
374
* - If the PCI size is 0 then this base address has no meaning!!!
377
* INPUT: Bus, Region - The bus and region we ask for its base address.
379
* RETURNS: PCI base address.
380
*********************************************************************/
381
unsigned int pciGetBaseAddress (PCI_HOST host, PCI_REGION region)
383
unsigned int regBase;
385
unsigned int regOffset = pciGetRegOffset (host, region);
387
GT_REG_READ (regOffset, ®Base);
388
GT_REG_READ (regOffset + 8, ®End);
390
if (regEnd <= regBase)
391
return 0xffffffff; /* ERROR !!! */
393
regBase = regBase << 16;
397
bool pciMapSpace (PCI_HOST host, PCI_REGION region, unsigned int remapBase,
398
unsigned int bankBase, unsigned int bankLength)
400
unsigned int low = 0xfff;
401
unsigned int high = 0x0;
402
unsigned int regOffset = pciGetRegOffset (host, region);
403
unsigned int remapOffset = pciGetRemapOffset (host, region);
405
if (bankLength != 0) {
406
low = (bankBase >> 16) & 0xffff;
407
high = ((bankBase + bankLength) >> 16) - 1;
410
GT_REG_WRITE (regOffset, low | (1 << 24)); /* no swapping */
411
GT_REG_WRITE (regOffset + 8, high);
413
if (bankLength != 0) { /* must do AFTER writing maps */
414
GT_REG_WRITE (remapOffset, remapBase >> 16); /* sorry, 32 bits only.
415
dont support upper 32
421
unsigned int pciGetSpaceBase (PCI_HOST host, PCI_REGION region)
424
unsigned int regOffset = pciGetRegOffset (host, region);
426
GT_REG_READ (regOffset, &low);
427
return (low & 0xffff) << 16;
430
unsigned int pciGetSpaceSize (PCI_HOST host, PCI_REGION region)
432
unsigned int low, high;
433
unsigned int regOffset = pciGetRegOffset (host, region);
435
GT_REG_READ (regOffset, &low);
436
GT_REG_READ (regOffset + 8, &high);
437
return ((high & 0xffff) + 1) << 16;
441
/* ronen - 7/Dec/03*/
442
/********************************************************************
443
* gtPciDisable/EnableInternalBAR - This function enable/disable PCI BARS.
444
* Inputs: one of the PCI BAR
445
*********************************************************************/
446
void gtPciEnableInternalBAR (PCI_HOST host, PCI_INTERNAL_BAR pciBAR)
448
RESET_REG_BITS (pci_address_space_en[host], BIT0 << pciBAR);
451
void gtPciDisableInternalBAR (PCI_HOST host, PCI_INTERNAL_BAR pciBAR)
453
SET_REG_BITS (pci_address_space_en[host], BIT0 << pciBAR);
456
/********************************************************************
457
* pciMapMemoryBank - Maps PCI_host memory bank "bank" for the slave.
459
* Inputs: base and size of PCI SCS
460
*********************************************************************/
461
void pciMapMemoryBank (PCI_HOST host, MEMORY_BANK bank,
462
unsigned int pciDramBase, unsigned int pciDramSize)
464
/*ronen different function for 3rd bank. */
465
unsigned int offset = (bank < 2) ? bank * 8 : 0x100 + (bank - 2) * 8;
467
pciDramBase = pciDramBase & 0xfffff000;
468
pciDramBase = pciDramBase | (pciReadConfigReg (host,
469
PCI_SCS_0_BASE_ADDRESS
472
pciWriteConfigReg (host, PCI_SCS_0_BASE_ADDRESS + offset, SELF,
474
if (pciDramSize == 0)
476
GT_REG_WRITE (pci_scs_bank_size[host][bank], pciDramSize - 1);
477
gtPciEnableInternalBAR (host, bank);
480
/********************************************************************
481
* pciSetRegionFeatures - This function modifys one of the 8 regions with
482
* feature bits given as an input.
483
* - Be advised to check the spec before modifying them.
484
* Inputs: PCI_PROTECT_REGION region - one of the eight regions.
485
* unsigned int features - See file: pci.h there are defintion for those
487
* unsigned int baseAddress - The region base Address.
488
* unsigned int topAddress - The region top Address.
489
* Returns: false if one of the parameters is erroneous true otherwise.
490
*********************************************************************/
491
bool pciSetRegionFeatures (PCI_HOST host, PCI_ACCESS_REGIONS region,
492
unsigned int features, unsigned int baseAddress,
493
unsigned int regionLength)
495
unsigned int accessLow;
496
unsigned int accessHigh;
497
unsigned int accessTop = baseAddress + regionLength;
499
if (regionLength == 0) { /* close the region. */
500
pciDisableAccessRegion (host, region);
503
/* base Address is store is bits [11:0] */
504
accessLow = (baseAddress & 0xfff00000) >> 20;
505
/* All the features are update according to the defines in pci.h (to be on
506
the safe side we disable bits: [11:0] */
507
accessLow = accessLow | (features & 0xfffff000);
508
/* write to the Low Access Region register */
509
GT_REG_WRITE (pci_access_control_base_0_low[host] + 0x10 * region,
512
accessHigh = (accessTop & 0xfff00000) >> 20;
514
/* write to the High Access Region register */
515
GT_REG_WRITE (pci_access_control_top_0[host] + 0x10 * region,
520
/********************************************************************
521
* pciDisableAccessRegion - Disable The given Region by writing MAX size
522
* to its low Address and MIN size to its high Address.
524
* Inputs: PCI_ACCESS_REGIONS region - The region we to be Disabled.
526
*********************************************************************/
527
void pciDisableAccessRegion (PCI_HOST host, PCI_ACCESS_REGIONS region)
529
/* writing back the registers default values. */
530
GT_REG_WRITE (pci_access_control_base_0_low[host] + 0x10 * region,
532
GT_REG_WRITE (pci_access_control_top_0[host] + 0x10 * region, 0);
535
/********************************************************************
536
* pciArbiterEnable - Enables PCI-0`s Arbitration mechanism.
540
*********************************************************************/
541
bool pciArbiterEnable (PCI_HOST host)
543
unsigned int regData;
545
GT_REG_READ (pci_arbiter_control[host], ®Data);
546
GT_REG_WRITE (pci_arbiter_control[host], regData | BIT31);
550
/********************************************************************
551
* pciArbiterDisable - Disable PCI-0`s Arbitration mechanism.
555
*********************************************************************/
556
bool pciArbiterDisable (PCI_HOST host)
558
unsigned int regData;
560
GT_REG_READ (pci_arbiter_control[host], ®Data);
561
GT_REG_WRITE (pci_arbiter_control[host], regData & 0x7fffffff);
565
/********************************************************************
566
* pciSetArbiterAgentsPriority - Priority setup for the PCI agents (Hi or Low)
568
* Inputs: PCI_AGENT_PRIO internalAgent - priotity for internal agent.
569
* PCI_AGENT_PRIO externalAgent0 - priotity for external#0 agent.
570
* PCI_AGENT_PRIO externalAgent1 - priotity for external#1 agent.
571
* PCI_AGENT_PRIO externalAgent2 - priotity for external#2 agent.
572
* PCI_AGENT_PRIO externalAgent3 - priotity for external#3 agent.
573
* PCI_AGENT_PRIO externalAgent4 - priotity for external#4 agent.
574
* PCI_AGENT_PRIO externalAgent5 - priotity for external#5 agent.
576
*********************************************************************/
577
bool pciSetArbiterAgentsPriority (PCI_HOST host, PCI_AGENT_PRIO internalAgent,
578
PCI_AGENT_PRIO externalAgent0,
579
PCI_AGENT_PRIO externalAgent1,
580
PCI_AGENT_PRIO externalAgent2,
581
PCI_AGENT_PRIO externalAgent3,
582
PCI_AGENT_PRIO externalAgent4,
583
PCI_AGENT_PRIO externalAgent5)
585
unsigned int regData;
586
unsigned int writeData;
588
GT_REG_READ (pci_arbiter_control[host], ®Data);
589
writeData = (internalAgent << 7) + (externalAgent0 << 8) +
590
(externalAgent1 << 9) + (externalAgent2 << 10) +
591
(externalAgent3 << 11) + (externalAgent4 << 12) +
592
(externalAgent5 << 13);
593
regData = (regData & 0xffffc07f) | writeData;
594
GT_REG_WRITE (pci_arbiter_control[host], regData & regData);
598
/********************************************************************
599
* pciParkingDisable - Park on last option disable, with this function you can
600
* disable the park on last mechanism for each agent.
601
* disabling this option for all agents results parking
602
* on the internal master.
604
* Inputs: PCI_AGENT_PARK internalAgent - parking Disable for internal agent.
605
* PCI_AGENT_PARK externalAgent0 - parking Disable for external#0 agent.
606
* PCI_AGENT_PARK externalAgent1 - parking Disable for external#1 agent.
607
* PCI_AGENT_PARK externalAgent2 - parking Disable for external#2 agent.
608
* PCI_AGENT_PARK externalAgent3 - parking Disable for external#3 agent.
609
* PCI_AGENT_PARK externalAgent4 - parking Disable for external#4 agent.
610
* PCI_AGENT_PARK externalAgent5 - parking Disable for external#5 agent.
612
*********************************************************************/
613
bool pciParkingDisable (PCI_HOST host, PCI_AGENT_PARK internalAgent,
614
PCI_AGENT_PARK externalAgent0,
615
PCI_AGENT_PARK externalAgent1,
616
PCI_AGENT_PARK externalAgent2,
617
PCI_AGENT_PARK externalAgent3,
618
PCI_AGENT_PARK externalAgent4,
619
PCI_AGENT_PARK externalAgent5)
621
unsigned int regData;
622
unsigned int writeData;
624
GT_REG_READ (pci_arbiter_control[host], ®Data);
625
writeData = (internalAgent << 14) + (externalAgent0 << 15) +
626
(externalAgent1 << 16) + (externalAgent2 << 17) +
627
(externalAgent3 << 18) + (externalAgent4 << 19) +
628
(externalAgent5 << 20);
629
regData = (regData & ~(0x7f << 14)) | writeData;
630
GT_REG_WRITE (pci_arbiter_control[host], regData);
634
/********************************************************************
635
* pciEnableBrokenAgentDetection - A master is said to be broken if it fails to
636
* respond to grant assertion within a window specified in
637
* the input value: 'brokenValue'.
639
* Inputs: unsigned char brokenValue - A value which limits the Master to hold the
640
* grant without asserting frame.
641
* Returns: Error for illegal broken value otherwise true.
642
*********************************************************************/
643
bool pciEnableBrokenAgentDetection (PCI_HOST host, unsigned char brokenValue)
646
unsigned int regData;
648
if (brokenValue > 0xf)
649
return false; /* brokenValue must be 4 bit */
650
data = brokenValue << 3;
651
GT_REG_READ (pci_arbiter_control[host], ®Data);
652
regData = (regData & 0xffffff87) | data;
653
GT_REG_WRITE (pci_arbiter_control[host], regData | BIT1);
657
/********************************************************************
658
* pciDisableBrokenAgentDetection - This function disable the Broken agent
659
* Detection mechanism.
660
* NOTE: This operation may cause a dead lock on the
665
*********************************************************************/
666
bool pciDisableBrokenAgentDetection (PCI_HOST host)
668
unsigned int regData;
670
GT_REG_READ (pci_arbiter_control[host], ®Data);
671
regData = regData & 0xfffffffd;
672
GT_REG_WRITE (pci_arbiter_control[host], regData);
676
/********************************************************************
677
* pciP2PConfig - This function set the PCI_n P2P configurate.
678
* For more information on the P2P read PCI spec.
680
* Inputs: unsigned int SecondBusLow - Secondery PCI interface Bus Range Lower
682
* unsigned int SecondBusHigh - Secondry PCI interface Bus Range upper
684
* unsigned int busNum - The CPI bus number to which the PCI interface
686
* unsigned int devNum - The PCI interface's device number.
689
*********************************************************************/
690
bool pciP2PConfig (PCI_HOST host, unsigned int SecondBusLow,
691
unsigned int SecondBusHigh,
692
unsigned int busNum, unsigned int devNum)
694
unsigned int regData;
696
regData = (SecondBusLow & 0xff) | ((SecondBusHigh & 0xff) << 8) |
697
((busNum & 0xff) << 16) | ((devNum & 0x1f) << 24);
698
GT_REG_WRITE (pci_p2p_configuration[host], regData);
702
/********************************************************************
703
* pciSetRegionSnoopMode - This function modifys one of the 4 regions which
704
* supports Cache Coherency in the PCI_n interface.
705
* Inputs: region - One of the four regions.
706
* snoopType - There is four optional Types:
708
* 2. Snoop to WT region.
709
* 3. Snoop to WB region.
710
* 4. Snoop & Invalidate to WB region.
711
* baseAddress - Base Address of this region.
712
* regionLength - Region length.
713
* Returns: false if one of the parameters is wrong otherwise return true.
714
*********************************************************************/
715
bool pciSetRegionSnoopMode (PCI_HOST host, PCI_SNOOP_REGION region,
716
PCI_SNOOP_TYPE snoopType,
717
unsigned int baseAddress,
718
unsigned int regionLength)
720
unsigned int snoopXbaseAddress;
721
unsigned int snoopXtopAddress;
723
unsigned int snoopHigh = baseAddress + regionLength;
725
if ((region > PCI_SNOOP_REGION3) || (snoopType > PCI_SNOOP_WB))
728
pci_snoop_control_base_0_low[host] + 0x10 * region;
729
snoopXtopAddress = pci_snoop_control_top_0[host] + 0x10 * region;
730
if (regionLength == 0) { /* closing the region */
731
GT_REG_WRITE (snoopXbaseAddress, 0x0000ffff);
732
GT_REG_WRITE (snoopXtopAddress, 0);
735
baseAddress = baseAddress & 0xfff00000; /* Granularity of 1MByte */
736
data = (baseAddress >> 20) | snoopType << 12;
737
GT_REG_WRITE (snoopXbaseAddress, data);
738
snoopHigh = (snoopHigh & 0xfff00000) >> 20;
739
GT_REG_WRITE (snoopXtopAddress, snoopHigh - 1);
743
static int gt_read_config_dword (struct pci_controller *hose,
744
pci_dev_t dev, int offset, u32 * value)
746
int bus = PCI_BUS (dev);
748
if ((bus == local_buses[0]) || (bus == local_buses[1])) {
749
*value = pciReadConfigReg ((PCI_HOST) hose->cfg_addr, offset,
752
*value = pciOverBridgeReadConfigReg ((PCI_HOST) hose->
760
static int gt_write_config_dword (struct pci_controller *hose,
761
pci_dev_t dev, int offset, u32 value)
763
int bus = PCI_BUS (dev);
765
if ((bus == local_buses[0]) || (bus == local_buses[1])) {
766
pciWriteConfigReg ((PCI_HOST) hose->cfg_addr, offset,
767
PCI_DEV (dev), value);
769
pciOverBridgeWriteConfigReg ((PCI_HOST) hose->cfg_addr,
770
offset, PCI_DEV (dev), bus,
777
static void gt_setup_ide (struct pci_controller *hose,
778
pci_dev_t dev, struct pci_config_table *entry)
780
static const int ide_bar[] = { 8, 4, 8, 4, 0, 0 };
781
u32 bar_response, bar_value;
784
for (bar = 0; bar < 6; bar++) {
785
/*ronen different function for 3rd bank. */
786
unsigned int offset =
787
(bar < 2) ? bar * 8 : 0x100 + (bar - 2) * 8;
789
pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0 + offset,
791
pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0 + offset,
794
pciauto_region_allocate (bar_response &
795
PCI_BASE_ADDRESS_SPACE_IO ? hose->
796
pci_io : hose->pci_mem, ide_bar[bar],
799
pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0 + bar * 4,
804
#ifdef CONFIG_USE_CPCIDVI
805
static void gt_setup_cpcidvi (struct pci_controller *hose,
806
pci_dev_t dev, struct pci_config_table *entry)
808
u32 bar_value, pci_response;
810
pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &pci_response);
811
pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0, 0xffffffff);
812
pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0, &pci_response);
813
pciauto_region_allocate (hose->pci_mem, 0x01000000, &bar_value);
814
pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0, (bar_value & 0xffffff00));
815
pci_hose_write_config_dword (hose, dev, PCI_ROM_ADDRESS, 0x0);
816
pciauto_region_allocate (hose->pci_mem, 0x40000, &bar_value);
817
pci_hose_write_config_dword (hose, dev, PCI_ROM_ADDRESS, (bar_value & 0xffffff00) | 0x01);
818
gt_cpcidvi_rom.base = bar_value & 0xffffff00;
819
gt_cpcidvi_rom.init = 1;
822
unsigned char gt_cpcidvi_in8(unsigned int offset)
826
if (gt_cpcidvi_rom.init == 0) {
829
data = in8((offset & 0x04) + 0x3f000 + gt_cpcidvi_rom.base);
833
void gt_cpcidvi_out8(unsigned int offset, unsigned char data)
837
if (gt_cpcidvi_rom.init == 0) {
841
off = ((off << 3) & 0x7f8) + (offset & 0x4) + 0x3e000 + gt_cpcidvi_rom.base;
847
/* TODO BJW: Change this for DB64360. This was pulled from the EV64260 */
848
/* and is curently not called *. */
850
static void gt_fixup_irq (struct pci_controller *hose, pci_dev_t dev)
852
unsigned char pin, irq;
854
pci_read_config_byte (dev, PCI_INTERRUPT_PIN, &pin);
856
if (pin == 1) { /* only allow INT A */
857
irq = pci_irq_swizzle[(PCI_HOST) hose->
858
cfg_addr][PCI_DEV (dev)];
860
pci_write_config_byte (dev, PCI_INTERRUPT_LINE, irq);
865
struct pci_config_table gt_config_table[] = {
866
#ifdef CONFIG_USE_CPCIDVI
867
{PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_69030, PCI_CLASS_DISPLAY_VGA,
868
PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, gt_setup_cpcidvi},
870
{PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE,
871
PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, gt_setup_ide},
875
struct pci_controller pci0_hose = {
876
/* fixup_irq: gt_fixup_irq, */
877
config_table:gt_config_table,
880
struct pci_controller pci1_hose = {
881
/* fixup_irq: gt_fixup_irq, */
882
config_table:gt_config_table,
885
void pci_init_board (void)
887
unsigned int command;
888
#ifdef CONFIG_PCI_PNP
892
gt_pci_bus_mode_display (PCI_HOST0);
894
#ifdef CONFIG_USE_CPCIDVI
895
gt_cpcidvi_rom.init = 0;
896
gt_cpcidvi_rom.base = 0;
899
pci0_hose.config_table = gt_config_table;
900
pci1_hose.config_table = gt_config_table;
902
#ifdef CONFIG_USE_CPCIDVI
903
gt_config_table[0].config_device = gt_setup_cpcidvi;
905
gt_config_table[1].config_device = gt_setup_ide;
907
pci0_hose.first_busno = 0;
908
pci0_hose.last_busno = 0xff;
909
local_buses[0] = pci0_hose.first_busno;
911
/* PCI memory space */
912
pci_set_region (pci0_hose.regions + 0,
913
CONFIG_SYS_PCI0_0_MEM_SPACE,
914
CONFIG_SYS_PCI0_0_MEM_SPACE,
915
CONFIG_SYS_PCI0_MEM_SIZE, PCI_REGION_MEM);
918
pci_set_region (pci0_hose.regions + 1,
919
CONFIG_SYS_PCI0_IO_SPACE_PCI,
920
CONFIG_SYS_PCI0_IO_SPACE, CONFIG_SYS_PCI0_IO_SIZE, PCI_REGION_IO);
922
pci_set_ops (&pci0_hose,
923
pci_hose_read_config_byte_via_dword,
924
pci_hose_read_config_word_via_dword,
925
gt_read_config_dword,
926
pci_hose_write_config_byte_via_dword,
927
pci_hose_write_config_word_via_dword,
928
gt_write_config_dword);
929
pci0_hose.region_count = 2;
931
pci0_hose.cfg_addr = (unsigned int *) PCI_HOST0;
933
pci_register_hose (&pci0_hose);
934
pciArbiterDisable(PCI_HOST0); /* on PMC modules no arbiter is used */
935
pciParkingDisable (PCI_HOST0, 1, 1, 1, 1, 1, 1, 1);
936
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
937
command |= PCI_COMMAND_MASTER;
938
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
939
command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
940
command |= PCI_COMMAND_MEMORY;
941
pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
943
#ifdef CONFIG_PCI_PNP
944
pciauto_config_init(&pci0_hose);
945
pciauto_region_allocate(pci0_hose.pci_io, 0x400, &bar);
947
#ifdef CONFIG_PCI_SCAN_SHOW
948
printf("PCI: Bus Dev VenId DevId Class Int\n");
950
pci0_hose.last_busno = pci_hose_scan_bus (&pci0_hose, pci0_hose.first_busno);
953
gt_pci_bus_mode_display (PCI_HOST1);
955
pci1_hose.first_busno = pci0_hose.last_busno + 1;
956
pci1_hose.last_busno = 0xff;
957
pci1_hose.current_busno = pci1_hose.first_busno;
958
local_buses[1] = pci1_hose.first_busno;
960
/* PCI memory space */
961
pci_set_region (pci1_hose.regions + 0,
962
CONFIG_SYS_PCI1_0_MEM_SPACE,
963
CONFIG_SYS_PCI1_0_MEM_SPACE,
964
CONFIG_SYS_PCI1_MEM_SIZE, PCI_REGION_MEM);
967
pci_set_region (pci1_hose.regions + 1,
968
CONFIG_SYS_PCI1_IO_SPACE_PCI,
969
CONFIG_SYS_PCI1_IO_SPACE, CONFIG_SYS_PCI1_IO_SIZE, PCI_REGION_IO);
971
pci_set_ops (&pci1_hose,
972
pci_hose_read_config_byte_via_dword,
973
pci_hose_read_config_word_via_dword,
974
gt_read_config_dword,
975
pci_hose_write_config_byte_via_dword,
976
pci_hose_write_config_word_via_dword,
977
gt_write_config_dword);
979
pci1_hose.region_count = 2;
981
pci1_hose.cfg_addr = (unsigned int *) PCI_HOST1;
983
pci_register_hose (&pci1_hose);
985
pciArbiterEnable (PCI_HOST1);
986
pciParkingDisable (PCI_HOST1, 1, 1, 1, 1, 1, 1, 1);
988
command = pciReadConfigReg (PCI_HOST1, PCI_COMMAND, SELF);
989
command |= PCI_COMMAND_MASTER;
990
pciWriteConfigReg (PCI_HOST1, PCI_COMMAND, SELF, command);
992
#ifdef CONFIG_PCI_PNP
993
pciauto_config_init(&pci1_hose);
994
pciauto_region_allocate(pci1_hose.pci_io, 0x400, &bar);
996
pci1_hose.last_busno = pci_hose_scan_bus (&pci1_hose, pci1_hose.first_busno);
998
command = pciReadConfigReg (PCI_HOST1, PCI_COMMAND, SELF);
999
command |= PCI_COMMAND_MEMORY;
1000
pciWriteConfigReg (PCI_HOST1, PCI_COMMAND, SELF, command);
1003
#endif /* of CONFIG_PCI */