diff options
Diffstat (limited to 'board/Marvell/db64460/pci.c')
| -rw-r--r-- | board/Marvell/db64460/pci.c | 923 |
1 files changed, 0 insertions, 923 deletions
diff --git a/board/Marvell/db64460/pci.c b/board/Marvell/db64460/pci.c deleted file mode 100644 index 8c25198..0000000 --- a/board/Marvell/db64460/pci.c +++ /dev/null @@ -1,923 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ -/* PCI.c - PCI functions */ - - -#include <common.h> -#include <pci.h> - -#include "../include/pci.h" - -#undef DEBUG -#undef IDE_SET_NATIVE_MODE -static unsigned int local_buses[] = { 0, 0 }; - -static const unsigned char pci_irq_swizzle[2][PCI_MAX_DEVICES] = { - {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 }, -}; - - -#ifdef DEBUG -static const unsigned int pci_bus_list[] = { PCI_0_MODE, PCI_1_MODE }; -static void gt_pci_bus_mode_display (PCI_HOST host) -{ - unsigned int mode; - - - mode = (GTREGREAD (pci_bus_list[host]) & (BIT4 | BIT5)) >> 4; - switch (mode) { - case 0: - printf ("PCI %d bus mode: Conventional PCI\n", host); - break; - case 1: - printf ("PCI %d bus mode: 66 MHz PCIX\n", host); - break; - case 2: - printf ("PCI %d bus mode: 100 MHz PCIX\n", host); - break; - case 3: - printf ("PCI %d bus mode: 133 MHz PCIX\n", host); - break; - default: - printf ("Unknown BUS %d\n", mode); - } -} -#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_address_space_en[] = { - PCI_0_BASE_ADDR_REG_ENABLE, PCI_1_BASE_ADDR_REG_ENABLE -}; - -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); - GT_REG_WRITE (pci_configuration_data[host], 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); - GT_REG_READ (pci_configuration_data[host], &data); - return 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; -} - -/******************************************************************** -* pciGetBaseAddress - Gets the base address of a PCI. -* - If the PCI size is 0 then this base address has no meaning!!! -* -* -* INPUT: Bus, Region - The bus and region we ask for its base address. -* OUTPUT: N/A -* RETURNS: PCI base address. -*********************************************************************/ -unsigned int pciGetBaseAddress (PCI_HOST host, PCI_REGION region) -{ - unsigned int regBase; - unsigned int regEnd; - unsigned int regOffset = pciGetRegOffset (host, region); - - GT_REG_READ (regOffset, ®Base); - GT_REG_READ (regOffset + 8, ®End); - - if (regEnd <= regBase) - return 0xffffffff; /* ERROR !!! */ - - regBase = regBase << 16; - return regBase; -} - -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 >> 16) & 0xffff; - high = ((bankBase + bankLength) >> 16) - 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 >> 16); /* 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 & 0xffff) << 16; -} - -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); - return ((high & 0xffff) + 1) << 16; -} - - -/* ronen - 7/Dec/03*/ -/******************************************************************** -* gtPciDisable/EnableInternalBAR - This function enable/disable PCI BARS. -* Inputs: one of the PCI BAR -*********************************************************************/ -void gtPciEnableInternalBAR (PCI_HOST host, PCI_INTERNAL_BAR pciBAR) -{ - RESET_REG_BITS (pci_address_space_en[host], BIT0 << pciBAR); -} - -void gtPciDisableInternalBAR (PCI_HOST host, PCI_INTERNAL_BAR pciBAR) -{ - SET_REG_BITS (pci_address_space_en[host], BIT0 << pciBAR); -} - -/******************************************************************** -* 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) -{ - /*ronen different function for 3rd bank. */ - unsigned int offset = (bank < 2) ? bank * 8 : 0x100 + (bank - 2) * 8; - - pciDramBase = pciDramBase & 0xfffff000; - pciDramBase = pciDramBase | (pciReadConfigReg (host, - PCI_SCS_0_BASE_ADDRESS - + offset, - SELF) & 0x00000fff); - pciWriteConfigReg (host, PCI_SCS_0_BASE_ADDRESS + offset, SELF, - pciDramBase); - if (pciDramSize == 0) - pciDramSize++; - GT_REG_WRITE (pci_scs_bank_size[host][bank], pciDramSize - 1); - gtPciEnableInternalBAR (host, bank); -} - -/******************************************************************** -* 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], ®Data); - 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], ®Data); - GT_REG_WRITE (pci_arbiter_control[host], regData & 0x7fffffff); - return true; -} - -/******************************************************************** -* pciSetArbiterAgentsPriority - Priority setup for the PCI agents (Hi or Low) -* -* Inputs: PCI_AGENT_PRIO internalAgent - priotity for internal agent. -* PCI_AGENT_PRIO externalAgent0 - priotity for external#0 agent. -* PCI_AGENT_PRIO externalAgent1 - priotity for external#1 agent. -* PCI_AGENT_PRIO externalAgent2 - priotity for external#2 agent. -* PCI_AGENT_PRIO externalAgent3 - priotity for external#3 agent. -* PCI_AGENT_PRIO externalAgent4 - priotity for external#4 agent. -* PCI_AGENT_PRIO externalAgent5 - priotity for external#5 agent. -* Returns: true -*********************************************************************/ -bool pciSetArbiterAgentsPriority (PCI_HOST host, PCI_AGENT_PRIO internalAgent, - PCI_AGENT_PRIO externalAgent0, - PCI_AGENT_PRIO externalAgent1, - PCI_AGENT_PRIO externalAgent2, - PCI_AGENT_PRIO externalAgent3, - PCI_AGENT_PRIO externalAgent4, - PCI_AGENT_PRIO externalAgent5) -{ - unsigned int regData; - unsigned int writeData; - - GT_REG_READ (pci_arbiter_control[host], ®Data); - writeData = (internalAgent << 7) + (externalAgent0 << 8) + - (externalAgent1 << 9) + (externalAgent2 << 10) + - (externalAgent3 << 11) + (externalAgent4 << 12) + - (externalAgent5 << 13); - regData = (regData & 0xffffc07f) | writeData; - GT_REG_WRITE (pci_arbiter_control[host], regData & regData); - 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], ®Data); - 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; -} - -/******************************************************************** -* pciEnableBrokenAgentDetection - A master is said to be broken if it fails to -* respond to grant assertion within a window specified in -* the input value: 'brokenValue'. -* -* Inputs: unsigned char brokenValue - A value which limits the Master to hold the -* grant without asserting frame. -* Returns: Error for illegal broken value otherwise true. -*********************************************************************/ -bool pciEnableBrokenAgentDetection (PCI_HOST host, unsigned char brokenValue) -{ - unsigned int data; - unsigned int regData; - - if (brokenValue > 0xf) - return false; /* brokenValue must be 4 bit */ - data = brokenValue << 3; - GT_REG_READ (pci_arbiter_control[host], ®Data); - regData = (regData & 0xffffff87) | data; - GT_REG_WRITE (pci_arbiter_control[host], regData | BIT1); - return true; -} - -/******************************************************************** -* pciDisableBrokenAgentDetection - This function disable the Broken agent -* Detection mechanism. -* NOTE: This operation may cause a dead lock on the -* pci0 arbitration. -* -* Inputs: N/A -* Returns: true. -*********************************************************************/ -bool pciDisableBrokenAgentDetection (PCI_HOST host) -{ - unsigned int regData; - - GT_REG_READ (pci_arbiter_control[host], ®Data); - regData = regData & 0xfffffffd; - GT_REG_WRITE (pci_arbiter_control[host], regData); - return true; -} - -/******************************************************************** -* pciP2PConfig - This function set the PCI_n P2P configurate. -* For more information on the P2P read PCI spec. -* -* Inputs: unsigned int SecondBusLow - Secondery PCI interface Bus Range Lower -* Boundry. -* unsigned int SecondBusHigh - Secondry PCI interface Bus Range upper -* Boundry. -* unsigned int busNum - The CPI bus number to which the PCI interface -* is connected. -* unsigned int devNum - The PCI interface's device number. -* -* Returns: true. -*********************************************************************/ -bool pciP2PConfig (PCI_HOST host, unsigned int SecondBusLow, - unsigned int SecondBusHigh, - unsigned int busNum, unsigned int devNum) -{ - unsigned int regData; - - regData = (SecondBusLow & 0xff) | ((SecondBusHigh & 0xff) << 8) | - ((busNum & 0xff) << 16) | ((devNum & 0x1f) << 24); - GT_REG_WRITE (pci_p2p_configuration[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) -{ - int bus = PCI_BUS (dev); - - if ((bus == local_buses[0]) || (bus == local_buses[1])) { - *value = pciReadConfigReg ((PCI_HOST) hose->cfg_addr, offset, - PCI_DEV (dev)); - } else { - *value = pciOverBridgeReadConfigReg ((PCI_HOST) hose-> - cfg_addr, offset, - PCI_DEV (dev), bus); - } - - return 0; -} - -static int gt_write_config_dword (struct pci_controller *hose, - pci_dev_t dev, int offset, u32 value) -{ - int bus = PCI_BUS (dev); - - if ((bus == local_buses[0]) || (bus == local_buses[1])) { - pciWriteConfigReg ((PCI_HOST) hose->cfg_addr, offset, - PCI_DEV (dev), value); - } else { - pciOverBridgeWriteConfigReg ((PCI_HOST) hose->cfg_addr, - offset, PCI_DEV (dev), bus, - 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++) { - /*ronen different function for 3rd bank. */ - unsigned int offset = - (bar < 2) ? bar * 8 : 0x100 + (bar - 2) * 8; - - pci_write_config_dword (dev, PCI_BASE_ADDRESS_0 + offset, - 0x0); - pci_read_config_dword (dev, PCI_BASE_ADDRESS_0 + offset, - &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); - } -} - - -/* TODO BJW: Change this for DB64360. This was pulled from the EV64260 */ -/* and is curently not called *. */ -#if 0 -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); - } -} -#endif - -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_board (void) -{ - unsigned int command; - -#ifdef DEBUG - gt_pci_bus_mode_display (PCI_HOST0); -#endif - - pci0_hose.first_busno = 0; - pci0_hose.last_busno = 0xff; - local_buses[0] = pci0_hose.first_busno; - - /* PCI memory space */ - pci_set_region (pci0_hose.regions + 0, - CONFIG_SYS_PCI0_0_MEM_SPACE, - CONFIG_SYS_PCI0_0_MEM_SPACE, - CONFIG_SYS_PCI0_MEM_SIZE, PCI_REGION_MEM); - - /* PCI I/O space */ - pci_set_region (pci0_hose.regions + 1, - CONFIG_SYS_PCI0_IO_SPACE_PCI, - CONFIG_SYS_PCI0_IO_SPACE, CONFIG_SYS_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); - command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF); - command |= PCI_COMMAND_MEMORY; - pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command); - - pci0_hose.last_busno = pci_hose_scan (&pci0_hose); - -#ifdef DEBUG - gt_pci_bus_mode_display (PCI_HOST1); -#endif - pci1_hose.first_busno = pci0_hose.last_busno + 1; - pci1_hose.last_busno = 0xff; - pci1_hose.current_busno = pci1_hose.first_busno; - local_buses[1] = pci1_hose.first_busno; - - /* PCI memory space */ - pci_set_region (pci1_hose.regions + 0, - CONFIG_SYS_PCI1_0_MEM_SPACE, - CONFIG_SYS_PCI1_0_MEM_SPACE, - CONFIG_SYS_PCI1_MEM_SIZE, PCI_REGION_MEM); - - /* PCI I/O space */ - pci_set_region (pci1_hose.regions + 1, - CONFIG_SYS_PCI1_IO_SPACE_PCI, - CONFIG_SYS_PCI1_IO_SPACE, CONFIG_SYS_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); - -} |