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authorwdenk <wdenk>2002-11-03 00:24:07 +0000
committerwdenk <wdenk>2002-11-03 00:24:07 +0000
commitc609719b8d1b2dca590e0ed499016d041203e403 (patch)
tree7ea1755d80903ff972f312a249eb856061d40e15 /board/evb64260/pci.c
parent5b1d713721c3ea02549940133f09236783dda1f9 (diff)
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Initial revision
Diffstat (limited to 'board/evb64260/pci.c')
-rw-r--r--board/evb64260/pci.c691
1 files changed, 691 insertions, 0 deletions
diff --git a/board/evb64260/pci.c b/board/evb64260/pci.c
new file mode 100644
index 0000000..8e9178d
--- /dev/null
+++ b/board/evb64260/pci.c
@@ -0,0 +1,691 @@
+/* PCI.c - PCI functions */
+
+/* Copyright - Galileo technology. */
+
+#include <common.h>
+#include <pci.h>
+
+#include <galileo/pci.h>
+
+static const unsigned char pci_irq_swizzle[2][PCI_MAX_DEVICES] = {
+#ifdef CONFIG_ZUMA_V2
+ {0,0,0,0,0,0,0,29, [8 ... PCI_MAX_DEVICES-1]=0},
+ {0,0,0,0,0,0,0,28, [8 ... PCI_MAX_DEVICES-1]=0}
+#else /* EVB??? This is a guess */
+ {0,0,0,0,0,0,0,27,27, [9 ... PCI_MAX_DEVICES-1]=0},
+ {0,0,0,0,0,0,0,29,29, [9 ... PCI_MAX_DEVICES-1]=0}
+#endif
+};
+
+static const unsigned int pci_p2p_configuration_reg[]={
+ PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION};
+
+static const unsigned int pci_configuration_address[]={
+ PCI_0CONFIGURATION_ADDRESS, PCI_1CONFIGURATION_ADDRESS};
+
+static const unsigned int pci_configuration_data[]={
+ PCI_0CONFIGURATION_DATA_VIRTUAL_REGISTER,
+ PCI_1CONFIGURATION_DATA_VIRTUAL_REGISTER};
+
+static const unsigned int pci_error_cause_reg[]={
+ PCI_0ERROR_CAUSE, PCI_1ERROR_CAUSE};
+
+static const unsigned int pci_arbiter_control[]={
+ PCI_0ARBITER_CONTROL, PCI_1ARBITER_CONTROL};
+
+static const unsigned int pci_snoop_control_base_0_low[]={
+ PCI_0SNOOP_CONTROL_BASE_0_LOW, PCI_1SNOOP_CONTROL_BASE_0_LOW};
+static const unsigned int pci_snoop_control_top_0[]={
+ PCI_0SNOOP_CONTROL_TOP_0, PCI_1SNOOP_CONTROL_TOP_0};
+
+static const unsigned int pci_access_control_base_0_low[]={
+ PCI_0ACCESS_CONTROL_BASE_0_LOW, PCI_1ACCESS_CONTROL_BASE_0_LOW};
+static const unsigned int pci_access_control_top_0[]={
+ PCI_0ACCESS_CONTROL_TOP_0, PCI_1ACCESS_CONTROL_TOP_0};
+
+static const unsigned int pci_scs_bank_size[2][4] = {
+ {PCI_0SCS_0_BANK_SIZE, PCI_0SCS_1_BANK_SIZE,
+ PCI_0SCS_2_BANK_SIZE, PCI_0SCS_3_BANK_SIZE},
+ {PCI_1SCS_0_BANK_SIZE, PCI_1SCS_1_BANK_SIZE,
+ PCI_1SCS_2_BANK_SIZE, PCI_1SCS_3_BANK_SIZE}};
+
+static const unsigned int pci_p2p_configuration[] = {
+ PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION};
+
+/********************************************************************
+* pciWriteConfigReg - Write to a PCI configuration register
+* - Make sure the GT is configured as a master before writing
+* to another device on the PCI.
+* - The function takes care of Big/Little endian conversion.
+*
+*
+* Inputs: unsigned int regOffset: The register offset as it apears in the GT spec
+* (or any other PCI device spec)
+* pciDevNum: The device number needs to be addressed.
+*
+* Configuration Address 0xCF8:
+*
+* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
+* |congif|Reserved| Bus |Device|Function|Register|00|
+* |Enable| |Number|Number| Number | Number | | <=field Name
+*
+*********************************************************************/
+void pciWriteConfigReg(PCI_HOST host, unsigned int regOffset,unsigned int pciDevNum,unsigned int data)
+{
+ volatile unsigned int DataForAddrReg;
+ unsigned int functionNum;
+ unsigned int busNum = 0;
+ unsigned int addr;
+
+ if(pciDevNum > 32) /* illegal device Number */
+ return;
+ if(pciDevNum == SELF) /* configure our configuration space. */
+ {
+ pciDevNum = (GTREGREAD(pci_p2p_configuration_reg[host]) >> 24) & 0x1f;
+ busNum = GTREGREAD(pci_p2p_configuration_reg[host]) & 0xff0000;
+ }
+ functionNum = regOffset & 0x00000700;
+ pciDevNum = pciDevNum << 11;
+ regOffset = regOffset & 0xfc;
+ DataForAddrReg = ( regOffset | pciDevNum | functionNum | busNum) | BIT31;
+ GT_REG_WRITE(pci_configuration_address[host],DataForAddrReg);
+ GT_REG_READ(pci_configuration_address[host], &addr);
+ if (addr != DataForAddrReg) return;
+ GT_REG_WRITE(pci_configuration_data[host],data);
+}
+
+/********************************************************************
+* pciReadConfigReg - Read from a PCI0 configuration register
+* - Make sure the GT is configured as a master before reading
+* from another device on the PCI.
+* - The function takes care of Big/Little endian conversion.
+* INPUTS: regOffset: The register offset as it apears in the GT spec (or PCI
+* spec)
+* pciDevNum: The device number needs to be addressed.
+* RETURNS: data , if the data == 0xffffffff check the master abort bit in the
+* cause register to make sure the data is valid
+*
+* Configuration Address 0xCF8:
+*
+* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
+* |congif|Reserved| Bus |Device|Function|Register|00|
+* |Enable| |Number|Number| Number | Number | | <=field Name
+*
+*********************************************************************/
+unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,unsigned int pciDevNum)
+{
+ volatile unsigned int DataForAddrReg;
+ unsigned int data;
+ unsigned int functionNum;
+ unsigned int busNum = 0;
+
+ if(pciDevNum > 32) /* illegal device Number */
+ return 0xffffffff;
+ if(pciDevNum == SELF) /* configure our configuration space. */
+ {
+ pciDevNum = (GTREGREAD(pci_p2p_configuration_reg[host]) >> 24) & 0x1f;
+ busNum = GTREGREAD(pci_p2p_configuration_reg[host]) & 0xff0000;
+ }
+ functionNum = regOffset & 0x00000700;
+ pciDevNum = pciDevNum << 11;
+ regOffset = regOffset & 0xfc;
+ DataForAddrReg = (regOffset | pciDevNum | functionNum | busNum) | BIT31 ;
+ GT_REG_WRITE(pci_configuration_address[host],DataForAddrReg);
+ GT_REG_READ(pci_configuration_address[host], &data);
+ if (data != DataForAddrReg)
+ return 0xffffffff;
+ GT_REG_READ(pci_configuration_data[host], &data);
+ return data;
+}
+
+/********************************************************************
+* pciOverBridgeWriteConfigReg - Write to a PCI configuration register where
+* the agent is placed on another Bus. For more
+* information read P2P in the PCI spec.
+*
+* Inputs: unsigned int regOffset - The register offset as it apears in the
+* GT spec (or any other PCI device spec).
+* unsigned int pciDevNum - The device number needs to be addressed.
+* unsigned int busNum - On which bus does the Target agent connect
+* to.
+* unsigned int data - data to be written.
+*
+* Configuration Address 0xCF8:
+*
+* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
+* |congif|Reserved| Bus |Device|Function|Register|01|
+* |Enable| |Number|Number| Number | Number | | <=field Name
+*
+* The configuration Address is configure as type-I (bits[1:0] = '01') due to
+* PCI spec referring to P2P.
+*
+*********************************************************************/
+void pciOverBridgeWriteConfigReg(PCI_HOST host,
+ unsigned int regOffset,
+ unsigned int pciDevNum,
+ unsigned int busNum,unsigned int data)
+{
+ unsigned int DataForReg;
+ unsigned int functionNum;
+
+ functionNum = regOffset & 0x00000700;
+ pciDevNum = pciDevNum << 11;
+ regOffset = regOffset & 0xff;
+ busNum = busNum << 16;
+ if(pciDevNum == SELF) /* This board */
+ {
+ DataForReg = ( regOffset | pciDevNum | functionNum) | BIT0;
+ }
+ else
+ {
+ DataForReg = ( regOffset | pciDevNum | functionNum | busNum) |
+ BIT31 | BIT0;
+ }
+ GT_REG_WRITE(pci_configuration_address[host],DataForReg);
+ if(pciDevNum == SELF) /* This board */
+ {
+ GT_REG_WRITE(pci_configuration_data[host],data);
+ }
+ else /* configuration Transaction over the pci. */
+ {
+ /* The PCI is working in LE Mode So it swap the Data. */
+ GT_REG_WRITE(pci_configuration_data[host],WORD_SWAP(data));
+ }
+}
+
+
+/********************************************************************
+* pciOverBridgeReadConfigReg - Read from a PCIn configuration register where
+* the agent target locate on another PCI bus.
+* - Make sure the GT is configured as a master
+* before reading from another device on the PCI.
+* - The function takes care of Big/Little endian
+* conversion.
+* INPUTS: regOffset: The register offset as it apears in the GT spec (or PCI
+* spec). (configuration register offset.)
+* pciDevNum: The device number needs to be addressed.
+* busNum: the Bus number where the agent is place.
+* RETURNS: data , if the data == 0xffffffff check the master abort bit in the
+* cause register to make sure the data is valid
+*
+* Configuration Address 0xCF8:
+*
+* 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
+* |congif|Reserved| Bus |Device|Function|Register|01|
+* |Enable| |Number|Number| Number | Number | | <=field Name
+*
+*********************************************************************/
+unsigned int pciOverBridgeReadConfigReg(PCI_HOST host,
+ unsigned int regOffset,
+ unsigned int pciDevNum,
+ unsigned int busNum)
+{
+ unsigned int DataForReg;
+ unsigned int data;
+ unsigned int functionNum;
+
+ functionNum = regOffset & 0x00000700;
+ pciDevNum = pciDevNum << 11;
+ regOffset = regOffset & 0xff;
+ busNum = busNum << 16;
+ if (pciDevNum == SELF) /* This board */
+ {
+ DataForReg = (regOffset | pciDevNum | functionNum) | BIT31 ;
+ }
+ else /* agent on another bus */
+ {
+ DataForReg = (regOffset | pciDevNum | functionNum | busNum) |
+ BIT0 | BIT31 ;
+ }
+ GT_REG_WRITE(pci_configuration_address[host],DataForReg);
+ if (pciDevNum == SELF) /* This board */
+ {
+ GT_REG_READ(pci_configuration_data[host], &data);
+ return data;
+ }
+ else /* The PCI is working in LE Mode So it swap the Data. */
+ {
+ GT_REG_READ(pci_configuration_data[host], &data);
+ return WORD_SWAP(data);
+ }
+}
+
+/********************************************************************
+* pciGetRegOffset - Gets the register offset for this region config.
+*
+* INPUT: Bus, Region - The bus and region we ask for its base address.
+* OUTPUT: N/A
+* RETURNS: PCI register base address
+*********************************************************************/
+static unsigned int pciGetRegOffset(PCI_HOST host, PCI_REGION region)
+{
+ switch (host)
+ {
+ case PCI_HOST0:
+ switch(region) {
+ case PCI_IO: return PCI_0I_O_LOW_DECODE_ADDRESS;
+ case PCI_REGION0: return PCI_0MEMORY0_LOW_DECODE_ADDRESS;
+ case PCI_REGION1: return PCI_0MEMORY1_LOW_DECODE_ADDRESS;
+ case PCI_REGION2: return PCI_0MEMORY2_LOW_DECODE_ADDRESS;
+ case PCI_REGION3: return PCI_0MEMORY3_LOW_DECODE_ADDRESS;
+ }
+ case PCI_HOST1:
+ switch(region) {
+ case PCI_IO: return PCI_1I_O_LOW_DECODE_ADDRESS;
+ case PCI_REGION0: return PCI_1MEMORY0_LOW_DECODE_ADDRESS;
+ case PCI_REGION1: return PCI_1MEMORY1_LOW_DECODE_ADDRESS;
+ case PCI_REGION2: return PCI_1MEMORY2_LOW_DECODE_ADDRESS;
+ case PCI_REGION3: return PCI_1MEMORY3_LOW_DECODE_ADDRESS;
+ }
+ }
+ return PCI_0MEMORY0_LOW_DECODE_ADDRESS;
+}
+
+static unsigned int pciGetRemapOffset(PCI_HOST host, PCI_REGION region)
+{
+ switch (host)
+ {
+ case PCI_HOST0:
+ switch(region) {
+ case PCI_IO: return PCI_0I_O_ADDRESS_REMAP;
+ case PCI_REGION0: return PCI_0MEMORY0_ADDRESS_REMAP;
+ case PCI_REGION1: return PCI_0MEMORY1_ADDRESS_REMAP;
+ case PCI_REGION2: return PCI_0MEMORY2_ADDRESS_REMAP;
+ case PCI_REGION3: return PCI_0MEMORY3_ADDRESS_REMAP;
+ }
+ case PCI_HOST1:
+ switch(region) {
+ case PCI_IO: return PCI_1I_O_ADDRESS_REMAP;
+ case PCI_REGION0: return PCI_1MEMORY0_ADDRESS_REMAP;
+ case PCI_REGION1: return PCI_1MEMORY1_ADDRESS_REMAP;
+ case PCI_REGION2: return PCI_1MEMORY2_ADDRESS_REMAP;
+ case PCI_REGION3: return PCI_1MEMORY3_ADDRESS_REMAP;
+ }
+ }
+ return PCI_0MEMORY0_ADDRESS_REMAP;
+}
+
+bool pciMapSpace(PCI_HOST host, PCI_REGION region, unsigned int remapBase, unsigned int bankBase,unsigned int bankLength)
+{
+ unsigned int low=0xfff;
+ unsigned int high=0x0;
+ unsigned int regOffset=pciGetRegOffset(host, region);
+ unsigned int remapOffset=pciGetRemapOffset(host, region);
+
+ if(bankLength!=0) {
+ low = (bankBase >> 20) & 0xfff;
+ high=((bankBase+bankLength)>>20)-1;
+ }
+
+ GT_REG_WRITE(regOffset, low | (1<<24)); /* no swapping */
+ GT_REG_WRITE(regOffset+8, high);
+
+ if(bankLength!=0) { /* must do AFTER writing maps */
+ GT_REG_WRITE(remapOffset, remapBase>>20); /* sorry, 32 bits only.
+ dont support upper 32
+ in this driver */
+ }
+ return true;
+}
+
+unsigned int pciGetSpaceBase(PCI_HOST host, PCI_REGION region)
+{
+ unsigned int low;
+ unsigned int regOffset=pciGetRegOffset(host, region);
+ GT_REG_READ(regOffset,&low);
+ return (low&0xfff)<<20;
+}
+
+unsigned int pciGetSpaceSize(PCI_HOST host, PCI_REGION region)
+{
+ unsigned int low,high;
+ unsigned int regOffset=pciGetRegOffset(host, region);
+ GT_REG_READ(regOffset,&low);
+ GT_REG_READ(regOffset+8,&high);
+ high&=0xfff;
+ low&=0xfff;
+ if(high<=low) return 0;
+ return (high+1-low)<<20;
+}
+
+/********************************************************************
+* pciMapMemoryBank - Maps PCI_host memory bank "bank" for the slave.
+*
+* Inputs: base and size of PCI SCS
+*********************************************************************/
+void pciMapMemoryBank(PCI_HOST host, MEMORY_BANK bank, unsigned int pciDramBase,unsigned int pciDramSize)
+{
+ pciDramBase = pciDramBase & 0xfffff000;
+ pciDramBase = pciDramBase | (pciReadConfigReg(host,
+ PCI_SCS_0_BASE_ADDRESS + 4*bank,SELF) & 0x00000fff);
+ pciWriteConfigReg(host,PCI_SCS_0_BASE_ADDRESS + 4*bank,SELF,pciDramBase);
+ if(pciDramSize == 0)
+ pciDramSize ++;
+ GT_REG_WRITE(pci_scs_bank_size[host][bank], pciDramSize-1);
+}
+
+
+/********************************************************************
+* pciSetRegionFeatures - This function modifys one of the 8 regions with
+* feature bits given as an input.
+* - Be advised to check the spec before modifying them.
+* Inputs: PCI_PROTECT_REGION region - one of the eight regions.
+* unsigned int features - See file: pci.h there are defintion for those
+* region features.
+* unsigned int baseAddress - The region base Address.
+* unsigned int topAddress - The region top Address.
+* Returns: false if one of the parameters is erroneous true otherwise.
+*********************************************************************/
+bool pciSetRegionFeatures(PCI_HOST host, PCI_ACCESS_REGIONS region,unsigned int features,
+ unsigned int baseAddress,unsigned int regionLength)
+{
+ unsigned int accessLow;
+ unsigned int accessHigh;
+ unsigned int accessTop = baseAddress + regionLength;
+
+ if(regionLength == 0) /* close the region. */
+ {
+ pciDisableAccessRegion(host, region);
+ return true;
+ }
+ /* base Address is store is bits [11:0] */
+ accessLow = (baseAddress & 0xfff00000) >> 20;
+ /* All the features are update according to the defines in pci.h (to be on
+ the safe side we disable bits: [11:0] */
+ accessLow = accessLow | (features & 0xfffff000);
+ /* write to the Low Access Region register */
+ GT_REG_WRITE( pci_access_control_base_0_low[host] + 0x10*region,accessLow);
+
+ accessHigh = (accessTop & 0xfff00000) >> 20;
+
+ /* write to the High Access Region register */
+ GT_REG_WRITE(pci_access_control_top_0[host] + 0x10*region,accessHigh - 1);
+ return true;
+}
+
+/********************************************************************
+* pciDisableAccessRegion - Disable The given Region by writing MAX size
+* to its low Address and MIN size to its high Address.
+*
+* Inputs: PCI_ACCESS_REGIONS region - The region we to be Disabled.
+* Returns: N/A.
+*********************************************************************/
+void pciDisableAccessRegion(PCI_HOST host, PCI_ACCESS_REGIONS region)
+{
+ /* writing back the registers default values. */
+ GT_REG_WRITE(pci_access_control_base_0_low[host] + 0x10*region,0x01001fff);
+ GT_REG_WRITE(pci_access_control_top_0[host] + 0x10*region,0);
+}
+
+/********************************************************************
+* pciArbiterEnable - Enables PCI-0`s Arbitration mechanism.
+*
+* Inputs: N/A
+* Returns: true.
+*********************************************************************/
+bool pciArbiterEnable(PCI_HOST host)
+{
+ unsigned int regData;
+
+ GT_REG_READ(pci_arbiter_control[host],&regData);
+ GT_REG_WRITE(pci_arbiter_control[host],regData | BIT31);
+ return true;
+}
+
+/********************************************************************
+* pciArbiterDisable - Disable PCI-0`s Arbitration mechanism.
+*
+* Inputs: N/A
+* Returns: true
+*********************************************************************/
+bool pciArbiterDisable(PCI_HOST host)
+{
+ unsigned int regData;
+
+ GT_REG_READ(pci_arbiter_control[host],&regData);
+ GT_REG_WRITE(pci_arbiter_control[host],regData & 0x7fffffff);
+ return true;
+}
+
+/********************************************************************
+* pciParkingDisable - Park on last option disable, with this function you can
+* disable the park on last mechanism for each agent.
+* disabling this option for all agents results parking
+* on the internal master.
+*
+* Inputs: PCI_AGENT_PARK internalAgent - parking Disable for internal agent.
+* PCI_AGENT_PARK externalAgent0 - parking Disable for external#0 agent.
+* PCI_AGENT_PARK externalAgent1 - parking Disable for external#1 agent.
+* PCI_AGENT_PARK externalAgent2 - parking Disable for external#2 agent.
+* PCI_AGENT_PARK externalAgent3 - parking Disable for external#3 agent.
+* PCI_AGENT_PARK externalAgent4 - parking Disable for external#4 agent.
+* PCI_AGENT_PARK externalAgent5 - parking Disable for external#5 agent.
+* Returns: true
+*********************************************************************/
+bool pciParkingDisable(PCI_HOST host, PCI_AGENT_PARK internalAgent,
+ PCI_AGENT_PARK externalAgent0,
+ PCI_AGENT_PARK externalAgent1,
+ PCI_AGENT_PARK externalAgent2,
+ PCI_AGENT_PARK externalAgent3,
+ PCI_AGENT_PARK externalAgent4,
+ PCI_AGENT_PARK externalAgent5)
+{
+ unsigned int regData;
+ unsigned int writeData;
+
+ GT_REG_READ(pci_arbiter_control[host],&regData);
+ writeData = (internalAgent << 14) + (externalAgent0 << 15) + \
+ (externalAgent1 << 16) + (externalAgent2 << 17) + \
+ (externalAgent3 << 18) + (externalAgent4 << 19) + \
+ (externalAgent5 << 20);
+ regData = (regData & ~(0x7f<<14)) | writeData;
+ GT_REG_WRITE(pci_arbiter_control[host],regData);
+ return true;
+}
+
+/********************************************************************
+* pciSetRegionSnoopMode - This function modifys one of the 4 regions which
+* supports Cache Coherency in the PCI_n interface.
+* Inputs: region - One of the four regions.
+* snoopType - There is four optional Types:
+* 1. No Snoop.
+* 2. Snoop to WT region.
+* 3. Snoop to WB region.
+* 4. Snoop & Invalidate to WB region.
+* baseAddress - Base Address of this region.
+* regionLength - Region length.
+* Returns: false if one of the parameters is wrong otherwise return true.
+*********************************************************************/
+bool pciSetRegionSnoopMode(PCI_HOST host, PCI_SNOOP_REGION region,PCI_SNOOP_TYPE snoopType,
+ unsigned int baseAddress,
+ unsigned int regionLength)
+{
+ unsigned int snoopXbaseAddress;
+ unsigned int snoopXtopAddress;
+ unsigned int data;
+ unsigned int snoopHigh = baseAddress + regionLength;
+
+ if( (region > PCI_SNOOP_REGION3) || (snoopType > PCI_SNOOP_WB) )
+ return false;
+ snoopXbaseAddress = pci_snoop_control_base_0_low[host] + 0x10 * region;
+ snoopXtopAddress = pci_snoop_control_top_0[host] + 0x10 * region;
+ if(regionLength == 0) /* closing the region */
+ {
+ GT_REG_WRITE(snoopXbaseAddress,0x0000ffff);
+ GT_REG_WRITE(snoopXtopAddress,0);
+ return true;
+ }
+ baseAddress = baseAddress & 0xfff00000; /* Granularity of 1MByte */
+ data = (baseAddress >> 20) | snoopType << 12;
+ GT_REG_WRITE(snoopXbaseAddress,data);
+ snoopHigh = (snoopHigh & 0xfff00000) >> 20;
+ GT_REG_WRITE(snoopXtopAddress,snoopHigh - 1);
+ return true;
+}
+
+/*
+ *
+ */
+
+static int gt_read_config_dword(struct pci_controller *hose,
+ pci_dev_t dev,
+ int offset, u32* value)
+{
+ *value = pciReadConfigReg((PCI_HOST) hose->cfg_addr, offset, PCI_DEV(dev));
+ return 0;
+}
+
+static int gt_write_config_dword(struct pci_controller *hose,
+ pci_dev_t dev,
+ int offset, u32 value)
+{
+ pciWriteConfigReg((PCI_HOST)hose->cfg_addr, offset, PCI_DEV(dev), value);
+ return 0;
+}
+
+/*
+ *
+ */
+
+static void gt_setup_ide(struct pci_controller *hose,
+ pci_dev_t dev, struct pci_config_table *entry)
+{
+ static const int ide_bar[]={8,4,8,4,0,0};
+ u32 bar_response, bar_value;
+ int bar;
+
+ for (bar=0; bar<6; bar++)
+ {
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar*4, 0x0);
+ pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + bar*4, &bar_response);
+
+ pciauto_region_allocate(bar_response & PCI_BASE_ADDRESS_SPACE_IO ?
+ hose->pci_io : hose->pci_mem, ide_bar[bar], &bar_value);
+
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar*4, bar_value);
+ }
+}
+
+static void gt_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
+{
+ unsigned char pin, irq;
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+
+ if(pin == 1) { /* only allow INT A */
+ irq = pci_irq_swizzle[(PCI_HOST)hose->cfg_addr][PCI_DEV(dev)];
+ if(irq)
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
+ }
+}
+
+struct pci_config_table gt_config_table[] = {
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, gt_setup_ide},
+
+ { }
+};
+
+struct pci_controller pci0_hose = {
+ fixup_irq: gt_fixup_irq,
+ config_table: gt_config_table,
+};
+
+struct pci_controller pci1_hose = {
+ fixup_irq: gt_fixup_irq,
+ config_table: gt_config_table,
+};
+
+void
+pci_init(void)
+{
+ unsigned int command;
+
+ pci0_hose.first_busno = 0;
+ pci0_hose.last_busno = 0xff;
+
+ /* PCI memory space */
+ pci_set_region(pci0_hose.regions + 0,
+ CFG_PCI0_0_MEM_SPACE,
+ CFG_PCI0_0_MEM_SPACE,
+ CFG_PCI0_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* PCI I/O space */
+ pci_set_region(pci0_hose.regions + 1,
+ CFG_PCI0_IO_SPACE_PCI,
+ CFG_PCI0_IO_SPACE,
+ CFG_PCI0_IO_SIZE,
+ PCI_REGION_IO);
+
+ pci_set_ops(&pci0_hose,
+ pci_hose_read_config_byte_via_dword,
+ pci_hose_read_config_word_via_dword,
+ gt_read_config_dword,
+ pci_hose_write_config_byte_via_dword,
+ pci_hose_write_config_word_via_dword,
+ gt_write_config_dword);
+
+ pci0_hose.region_count = 2;
+
+ pci0_hose.cfg_addr = (unsigned int*) PCI_HOST0;
+
+ pci_register_hose(&pci0_hose);
+
+ pciArbiterEnable(PCI_HOST0);
+ pciParkingDisable(PCI_HOST0,1,1,1,1,1,1,1);
+
+ command = pciReadConfigReg(PCI_HOST0, PCI_COMMAND, SELF);
+ command |= PCI_COMMAND_MASTER;
+ pciWriteConfigReg(PCI_HOST0, PCI_COMMAND, SELF, command);
+
+ pci0_hose.last_busno = pci_hose_scan(&pci0_hose);
+
+ command = pciReadConfigReg(PCI_HOST0, PCI_COMMAND, SELF);
+ command |= PCI_COMMAND_MEMORY;
+ pciWriteConfigReg(PCI_HOST0, PCI_COMMAND, SELF, command);
+
+ pci1_hose.first_busno = pci0_hose.last_busno + 1;
+ pci1_hose.last_busno = 0xff;
+
+ /* PCI memory space */
+ pci_set_region(pci1_hose.regions + 0,
+ CFG_PCI1_0_MEM_SPACE,
+ CFG_PCI1_0_MEM_SPACE,
+ CFG_PCI1_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* PCI I/O space */
+ pci_set_region(pci1_hose.regions + 1,
+ CFG_PCI1_IO_SPACE_PCI,
+ CFG_PCI1_IO_SPACE,
+ CFG_PCI1_IO_SIZE,
+ PCI_REGION_IO);
+
+ pci_set_ops(&pci1_hose,
+ pci_hose_read_config_byte_via_dword,
+ pci_hose_read_config_word_via_dword,
+ gt_read_config_dword,
+ pci_hose_write_config_byte_via_dword,
+ pci_hose_write_config_word_via_dword,
+ gt_write_config_dword);
+
+ pci1_hose.region_count = 2;
+
+ pci1_hose.cfg_addr = (unsigned int*) PCI_HOST1;
+
+ pci_register_hose(&pci1_hose);
+
+ pciArbiterEnable(PCI_HOST1);
+ pciParkingDisable(PCI_HOST1,1,1,1,1,1,1,1);
+
+ command = pciReadConfigReg(PCI_HOST1, PCI_COMMAND, SELF);
+ command |= PCI_COMMAND_MASTER;
+ pciWriteConfigReg(PCI_HOST1, PCI_COMMAND, SELF, command);
+
+ pci1_hose.last_busno = pci_hose_scan(&pci1_hose);
+
+ command = pciReadConfigReg(PCI_HOST1, PCI_COMMAND, SELF);
+ command |= PCI_COMMAND_MEMORY;
+ pciWriteConfigReg(PCI_HOST1, PCI_COMMAND, SELF, command);
+}