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author | Wolfgang Denk <wd@denx.de> | 2014-10-21 15:23:32 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2014-10-27 14:35:55 +0100 |
commit | 03b004074fb641cffd7d2150505ef8afc13231bf (patch) | |
tree | 93fe51aab1e2cc78646ddc8c9b5918dac9ed4ea3 /board/Marvell/db64460/pci.c | |
parent | fc297789a231ded974d6194e74f7a0620fb4553e (diff) | |
download | u-boot-imx-03b004074fb641cffd7d2150505ef8afc13231bf.zip u-boot-imx-03b004074fb641cffd7d2150505ef8afc13231bf.tar.gz u-boot-imx-03b004074fb641cffd7d2150505ef8afc13231bf.tar.bz2 |
PowerPC: drop some 74xx_7xx boards and related code
The file board/Marvell/include/mv_gen_reg.h is incompatible with
the GPL (see for example the "MARVELL RESERVES THE RIGHT AT ITS SOLE
DISCRETION TO REQUEST THAT THIS CODE BE IMMEDIATELY RETURNED TO
MARVELL" clause). As this cannot be fixed, we remove the file and all
code that depends on it. Fortunately this only affects some very old
boards that have long reached EOL:
CPCI750
DB64360
DB64460
p3m750
p3m7448
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Roger Meier <r.meier@siemens.com>
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); - -} |