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path: root/drivers/pci/fsl_pci_init.c
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2015-05-04fsl/pci: Set CFG_READY for PCIe v3.0 and laterMinghuan Lian
Freescale PCIe controllers v3.0 and later need to set bit CFG_READY to allow all inbound configuration transactions to be processed normally when in EP mode. However, bit CFG_READY has been moved from PCIe configuration space to CCSR PCIe configuration register comparing previous version. The patch is to set this bit according to PCIe version. Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2015-05-04T2080QDS/PCIe: Soft Reset PCIe on T2080QDS for down-training issueZhao Qiang
T2080QDS PEX1/Slot#1 will down-train from x4 to x2, with SRDS_PRTCL_S1 = 0x66 and SRDS_PRTCL_S2 = 0x15. Soft reset PCIe can fix this issue. Signed-off-by: Zhao Qiang <B45475@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2014-07-22fsl/pcie: Change 'no link' to 'undetermined' for pcie endpointZang Roy-R61911
Even u-boot boots up, the pcie link may not setup correctly when Freescale SOC acts as endpoint. So change the link status from 'no link' to 'undetermined' to reduce the confusion. The link status can check from host side eventually. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2014-05-16fsl/pci: Add workaround for erratum A-005434Chunhe Lan
By default, all PEX inbound windows PEX_PEXIWARn[TRGT] are mapped to 0xF, which is local memory. But for BSC9132, 0xF is CCSR, 0x0 is local memory. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2014-02-03driver/fsl_pci:Update print to display PCIe generationPrabhakar Kushwaha
Current print only display width of PCIe device. Add print to display PCIe generation supported by the device. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2013-10-16PCIe:change the method to get the address of a requested capability in ↵Zhao Qiang
configuration space. Previously, the address of a requested capability is define like that "#define PCI_DCR 0x78" But, the addresses of capabilities is different with regard to PCIe revs. So this method is not flexible. Now a function to get the address of a requested capability is added and used. It can get the address dynamically by capability ID. The step of this function: 1. Read Status register in PCIe configuration space to confirm that Capabilities List is valid. 2. Find the address of Capabilities Pointer Register. 3. Find the address of requested capability from the first capability. Signed-off-by: Zhao Qiang <B45475@freescale.com>
2013-08-09powerpc/pcie: add PCIe version 3.x supportZang Roy-R61911
T4240 PCIe IP is version 3.0 and has some update comparing previous QorIQ products. 1. Move Freescale specific register define to arch/powerpc/include/asm/fsl_pci.h and update the register offset define for T4240. 2. add the status/control register define use status/control register to judge the link status 3. The original code uses 'Programming Interface' field to judge if PCIE is EP or RC mode, however, T4240 does not support this functionality. According to PCIE specification, 'Header Type' offset 0x0e is used to indicate header type, so for PCIE controller, the patch changes code to use 'Header Type' field to identify if the PCIE is RC or EP mode. This patch fixes the PCIe card link up issue on T4240QDS. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: York Sun <yorksun@freescale.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-06-20powerpc/boot: Change the macro of Boot from SRIO and PCIE master moduleLiu Gang
Currently, the macro "CONFIG_SYS_FSL_SRIO_PCIE_BOOT_MASTER" can enable the master module of Boot from SRIO and PCIE on a platform. But this is not a silicon feature, it's just a specific booting mode based on the SRIO and PCIE interfaces. So it's inappropriate to put the macro into the file arch/powerpc/include/asm/config_mpc85xx.h. Change the macro "CONFIG_SYS_FSL_SRIO_PCIE_BOOT_MASTER" to "CONFIG_SRIO_PCIE_BOOT_MASTER", remove them from arch/powerpc/include/asm/config_mpc85xx.h file, and add those macros in configuration header file of each board which can support the master module of Boot from SRIO and PCIE. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-11-27powerpc/p4080ds: fix PCI-e x8 link training down failureYuanquan Chen
Due to SerDes configuration error, if we set the PCI-e controller link width as x8 in RCW and add a narrower width(such as x4, x2 or x1) PCI-e device to PCI-e slot, it fails to train down to the PCI-e device's link width. According to p4080ds errata PCIe-A003, we reset the PCI-e controller link width to x4 in u-boot. Then it can train down to x2 or x1 width to make the PCI-e link between RC and EP. Signed-off-by: Yuanquan Chen <B41889@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-10-22powerpc/boot: Change the compile macro for SRIO & PCIE boot master moduleLiu Gang
Currently, the SRIO and PCIE boot master module will be compiled into the u-boot image if the macro "CONFIG_FSL_CORENET" has been defined. And this macro has been included by all the corenet architecture platform boards. But in fact, it's uncertain whether all corenet platform boards support this feature. So it may be better to get rid of the macro "CONFIG_FSL_CORENET", and add a special macro for every board which can support the feature. This special macro will be defined in the header file "arch/powerpc/include/asm/config_mpc85xx.h". It will decide if the SRIO and PCIE boot master module should be compiled into the board u-boot image. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-10-22powerpc/mpc85xx: Add T4240 SoCYork Sun
Add support for Freescale T4240 SoC. Feature of T4240 are (incomplete list): 12 dual-threaded e6500 cores built on Power Architecture® technology Arranged as clusters of four cores sharing a 2 MB L2 cache. Up to 1.8 GHz at 1.0 V with 64-bit ISA support (Power Architecture v2.06-compliant) Three levels of instruction: user, supervisor, and hypervisor 1.5 MB CoreNet Platform Cache (CPC) Hierarchical interconnect fabric CoreNet fabric supporting coherent and non-coherent transactions with prioritization and bandwidth allocation amongst CoreNet end-points 1.6 Tbps coherent read bandwidth Queue Manager (QMan) fabric supporting packet-level queue management and quality of service scheduling Three 64-bit DDR3/3L SDRAM memory controllers with ECC and interleaving support Memory prefetch engine (PMan) Data Path Acceleration Architecture (DPAA) incorporating acceleration for the following functions: Packet parsing, classification, and distribution (Frame Manager 1.1) Queue management for scheduling, packet sequencing, and congestion management (Queue Manager 1.1) Hardware buffer management for buffer allocation and de-allocation (BMan 1.1) Cryptography acceleration (SEC 5.0) at up to 40 Gbps RegEx Pattern Matching Acceleration (PME 2.1) at up to 10 Gbps Decompression/Compression Acceleration (DCE 1.0) at up to 20 Gbps DPAA chip-to-chip interconnect via RapidIO Message Manager (RMAN 1.0) 32 SerDes lanes at up to 10.3125 GHz Ethernet interfaces Up to four 10 Gbps Ethernet MACs Up to sixteen 1 Gbps Ethernet MACs Maximum configuration of 4 x 10 GE + 8 x 1 GE High-speed peripheral interfaces Four PCI Express 2.0/3.0 controllers Two Serial RapidIO 2.0 controllers/ports running at up to 5 GHz with Type 11 messaging and Type 9 data streaming support Interlaken look-aside interface for serial TCAM connection Additional peripheral interfaces Two serial ATA (SATA 2.0) controllers Two high-speed USB 2.0 controllers with integrated PHY Enhanced secure digital host controller (SD/MMC/eMMC) Enhanced serial peripheral interface (eSPI) Four I2C controllers Four 2-pin or two 4-pin UARTs Integrated Flash controller supporting NAND and NOR flash Two eight-channel DMA engines Support for hardware virtualization and partitioning enforcement QorIQ Platform's Trust Architecture 1.1 Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-10-22driver/pci: Fix compiling errorYork Sun
Fix compiling error in case CONFIG_SYS_PCIE2_MEM_VIRT or CONFIG_SYS_PCIE3_MEM_VIRT not defined. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-10-22fsl_pci: use 'Header Type' field to judge PCIE modeMinghuan Lian
The original code uses 'Programming Interface' field to judge if PCIE is EP or RC mode, however, T4240 does not support this functionality. According to PCIE specification, 'Header Type' offset 0x0e is used to indicate header type, so for PCIE controller, the patch changes code to use 'Header Type' field to identify if the PCIE is EP or RC mode. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-08-23powerpc/corenet_ds: Master module for boot from PCIELiu Gang
For the powerpc processors with PCIE interface, boot location can be configured from one PCIE interface by RCW. The processor booting from PCIE can do without flash for u-boot image. The image can be fetched from another processor's memory space by PCIE link connected between them. The processor booting from PCIE is slave, the processor booting from normal flash memory space is master, and it can help slave to boot from master's memory space. When boot from PCIE, slave's core should be in holdoff after powered on for some specific requirements. Master will release the slave's core at the right time by PCIE interface. Environment and requirement: master: 1. NOR flash for its own u-boot image, ucode and ENV space. 2. Slave's u-boot image is in master NOR flash. 3. Normally boot from local NOR flash. 4. Configure PCIE system if needed. slave: 1. Just has EEPROM for RCW. No flash for u-boot image, ucode and ENV. 2. Boot location should be set to one PCIE interface by RCW. 3. RCW should configure the SerDes, PCIE interfaces correctly. 4. Must set all the cores in holdoff by RCW. 5. Must be powered on before master's boot. For the master module, need to finish these processes: 1. Initialize the PCIE port and address space. 2. Set inbound PCIE windows covered slave's u-boot image stored in master's NOR flash. 3. Set outbound windows in order to configure slave's registers for the core's releasing. 4. Should set the environment variable "bootmaster" to "PCIE1", "PCIE2" or "PCIE3" using the following command: setenv bootmaster PCIE1 saveenv Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-03-30pci: declare pciauto functions in headerLinus Walleij
The FSL PCI driver uses local prototypes for pciauto_[pre|post]scan_setup_bridge(), this does not seem right, so move them to the <pci.h> file. Fixed a small extern declaration too, this is harmless but distracts the view since all other prototypes are explicitly external. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-04pci: move pciauto_config_init() to pci.hLinus Walleij
Fixing build regressions for the Integrator I get find that a few boards try to work around the missing declaration of pciauto_config_init() by declaring it in the local scope. This does not make sense when the sibling functions are in <pci.h> so move the function to the header, ridding the build error in the Integrator and getting rid of the local declarations here and there. Reported-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-10-27GCC4.6: Squash warnings in fsl_pci_init.cMarek Vasut
fsl_pci_init.c: In function 'fsl_pci_init': fsl_pci_init.c:308: warning: format '%08x' expects type 'unsigned int', but argument 6 has type 'long unsigned int' fsl_pci_init.c:347: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'volatile u32 *' fsl_pci_init.c: In function 'fsl_pci_init': fsl_pci_init.c:308: warning: format '%016llx' expects type 'long long unsigned int', but argument 4 has type 'pci_addr_t' fsl_pci_init.c:308: warning: format '%016llx' expects type 'long long unsigned int', but argument 5 has type 'pci_size_t' fsl_pci_init.c:308: warning: format '%08x' expects type 'unsigned int', but argument 6 has type 'long unsigned int' Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Mike Frysinger <vapier@gentoo.org>
2011-07-28cleanup: Fix typos and misspellings in various files.Mike Williams
Recieve/Receive recieve/receive Interupt/Interrupt interupt/interrupt Addres/Address addres/address Signed-off-by: Mike Williams <mike@mikebwilliams.com>
2011-04-04fsl_pci: Add support for FSL PCIe controllers v2.xPrabhakar Kushwaha
FSL PCIe controller v2.1: - New MSI inbound window - Same Inbound windows address as PCIe controller v1.x Added new pit_t member(pmit) to struct ccsr_pci for MSI inbound window FSL PCIe controller v2.2 and v2.3: - Different addresses for PCIe inbound window 3,2,1 - Exposed PCIe inbound window 0 - New PCIe interrupt status register Added new Interrupt Status register to struct ccsr_pci & updated pit_t array size to reflect the 4 inbound windows. To maintain backward compatiblilty, on V2.2 or greater controllers we start with inbound window 1 and leave inbound 0 with its default value (which maps to CCSRBAR). Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-03-29powerpc/85xx: Handle PCIe initialization requires for P1021 class SoCsPrabhakar Kushwaha
The P1011, P1012, P1015, P1016, P1020, P1021, P1024, & P1025 SoCs require that we initialize the SERDES registers if the lanes are configured for PCIe. Additionally these devices PCIe controller do not support ASPM and we have to explicitly disable it. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-02-02Minor Coding Style Cleanup.Wolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-01-14fsl_pci: Update PCIe boot ouputPeter Tyser
This change does the following: - Adds printing of negotiated link width. This information can be useful when debugging PCIe issues. - Makes it optional for boards to implement board_serdes_name(). Previously boards that did not implement it would print unsightly output such as "PCIE1: Connected to <NULL>..." - Rewords the PCIe boot output to reduce line length and to make it clear that the "base address XYZ" value refers to the base address of the internal processor PCIe registers and not a standard PCI BAR value. - Changes "PCIE" output to the standard "PCIe" Before change: PCIE1: connected to <NULL> as Root Complex (base addr ef008000) 01:00.0 - 10b5:8518 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 02:02.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device PCIE1: Bus 00 - 05 PCIE2: connected to <NULL> as Endpoint (base addr ef009000) PCIE2: Bus 06 - 06 After change: PCIe1: Root Complex of PEX8518 Switch, x4, regs @ 0xef008000 01:00.0 - 10b5:8518 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 02:02.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device PCIe1: Bus 00 - 05 PCIe2: Endpoint of VPX Fabric A, x2, regs @ 0xef009000 PCIe2: Bus 06 - 06 Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-14powerpc/fsl-pci: Add generic code to setup PCIe controllersKumar Gala
Since all the PCIe controllers are connected over SERDES on the SoCs we can utilize is_serdes_configured() to determine if a controller is enabled. After which we can setup the ATMUs and LAWs for the controller in a common fashion and allow board code to specify what the controller is connected to for reporting reasons. We also provide a per controller (rather than all) for some systems that may have special requirements. Finally, we refactor the code used by the P1022DS to utilize the new generic code. Based on patch by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-14powerpc/fsl-pci: Determine pci_controller based on cfg addr for dts fixupKumar Gala
Previously we passed in a specifically named struct pci_controller to determine if we had setup the particular PCI bus. Now we can search for the struct so we dont have to depend on the name or the struct being statically allocated. Introduced new find_hose_by_cfg_addr() to get back a pci_controller struct back by searching for it means we can do things like dynamically allocate them or not have to expose the static structures to all users. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
2010-11-14fsl_pci_init: Quiet scanning printf()Peter Tyser
The "Scanning PCI bus X" message doesn't provide any real useful information, so remove it. Original output: PCIE1: connected as Root Complex Scanning PCI bus 01 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex Scanning PCI bus 0d 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d Updated output: PCIE1: connected as Root Complex 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d Signed-off-by: Peter Tyser <ptyser@xes-inc.com> CC: galak@kernel.crashing.org
2010-11-14fsl: Clean up printing of PCI boot infoPeter Tyser
Previously boards used a variety of indentations, newline styles, and colon styles for the PCI information that is printed on bootup. This patch unifies the style to look like: ... NAND: 1024 MiB PCIE1: connected as Root Complex Scanning PCI bus 01 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex Scanning PCI bus 0d 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d In: serial ... Signed-off-by: Peter Tyser <ptyser@xes-inc.com> CC: wd@denx.de CC: sr@denx.de CC: galak@kernel.crashing.org
2010-11-14fsl_pci_init: Make fsl_pci_init_port() PCI/PCIe awarePeter Tyser
Previously fsl_pci_init_port() always assumed that a port was a PCIe port and would incorrectly print messages for a PCI port such as the following on bootup: PCI1: 32 bit, 33 MHz, sync, host, arbiter Scanning PCI bus 00 PCIE1 on bus 00 - 00 This change corrects the output of fsl_pci_init_port(): PCI1: 32 bit, 33 MHz, sync, host, arbiter Scanning PCI bus 00 PCI1 on bus 00 - 00 Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-10-22pci: Add ability to re-enumerate PCI busesJohn Schmoller
Add a new 'pci enum' command which re-enumerates the PCI buses. This command is enabled via the CONFIG_CMD_PCI_ENUM define and can be useful in boards with FPGAs connected via PCI/PCIe, boards that support PCI hot-plugging, or during PCI debug. Also enable the 'pci enum' command for X-ES's Freescale-based boards. Signed-off-by: John Schmoller <jschmoller@xes-inc.com> Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
2010-07-20powerpc/85xx & 86xx: Rework ft_fsl_pci_setup to not require aliasesKumar Gala
Previously we used an alias the pci node to determine which node to fixup or delete. Now we use the new fdt_node_offset_by_compat_reg to find the node to update. Additionally, we replace the code in each board with a single macro call that makes assumes uniform naming and reduces duplication in this area. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-04-07ppc/8xxx: Delete PCI nodes from device tree if not configuredKumar Gala
If the PCI controller wasn't configured or enabled delete from the device tree (include its alias). For the case that we didn't even configure u-boot with knowledge of the controller we can use the fact that the pci_controller pointer is NULL to delete the node in the device tree. We determine that a controller was not setup (because of HW config) based on the fact that cfg_addr wasn't setup. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-01-05ppc/8xxx: Remove is_fsl_pci_agentKumar Gala
All users of is_fsl_pci_agent have been converted to fsl_is_pci_agent that uses the standard PCI programming model to determine host vs agent/end-point. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-11-04fsl_pci_init_port end-point initialization is brokenEd Swarthout
commit 70ed869e broke fsl pcie end-point initialization. Returning 0 is not correct. The function must return the first free bus number for the next controller. fsl_pci_init() must still be called and a bus allocated even if the controller is an end-point. Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Acked-by: Vivek Mahajan <vivek.mahajan@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-11-04Revert "ppc/85xx/pci: fsl_pci_init: pcie agent mode support"Kumar Gala
This reverts commit 70ed869ea5f6b1d13d7b140c83ec0dcd8a127ddc. There isn't any need to modify the API for fsl_pci_init_port to pass the status of host/agent(end-point) status. We can determine that internally to fsl_pci_init_port. Revert the patch that makes the API change. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-10-27ppc/85xx/pci: fsl_pci_init: pcie agent mode supportVivek Mahajan
Originally written by Jason Jin and Mingkai Hu for mpc8536. When QorIQ based board is configured as a PCIe agent, then unlock/enable inbound PCI configuration cycles and init a 4K inbound memory window; so that a PCIe host can access the PCIe agents SDRAM at address 0x0 * Supported in fsl_pci_init_port() after adding pcie_ep as a param * Revamped copyright in drivers/pci/fsl_pci_init.c * Mods in 85xx based board specific pci init after this change Signed-off-by: Vivek Mahajan <vivek.mahajan@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-24ppc/85xx: Clean up p1_p2_rdb PCI setupKumar Gala
General code cleanup to use in/out IO accessors as well as making the code that prints out info sane between board and generic fsl pci code. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28driver/fsl_pci: Add fsl_pci_init_port function to initialize a PCI controllerPoonam Aggrwal
fsl_pci_init_port can be called from board specific PCI initialization routines to setup the PCI (or PCIe) controller. This will reduce code redundancy in most of the 85xx/86xx FSL board ports that setup PCI. Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28pci/fsl_pci_init: Rework PCI ATMU setup to handle >4G of memoryKumar Gala
The old PCI ATMU setup code would just mimic the PCI regions into the ATMU registers. For simple memory maps in which all memory, MMIO, etc space fit into 4G this works ok. However there are issues with we have >4G of memory as we know can't access all of memory and we need to ensure that PCICSRBAR (PEXCSRBAR on PCIe) isn't overlapping with anything since we can't turn it off. We first setup outbound windows based on what the board code setup in the pci regions for MMIO and IO access. Next we place PCICSRBAR below the MMIO window. After which we try to setup the inbound windows to map as much of memory as possible. On PCIe based controllers we are able to overmap the ATMU setup since RX & TX links are separate but report the proper amount of inbound address space to the region tracking to ensure there is no overlap. On PCI based controllers we use as many inbound windows as available to map as much of the memory as possible. Additionally we changed all the CCSR register access to use proper IO accessor functions. Also had to add CONFIG_SYS_CCSRBAR_PHYS to some 86xx platforms that didn't have it defined. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28pci/fsl_pci_init: Use PCIe capability to determine if controller is PCIeKumar Gala
Change the code to use the PCIe capabilities register to determine if we are a PCIe controller or not. Additionally cleaned up some white space and formatting in the file. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28pci/fsl_pci_init: Fold fsl_pci_setup_inbound_windows into fsl_pci_initKumar Gala
Every platform that calls fsl_pci_init calls fsl_pci_setup_inbound_windows before it calls fsl_pci_init. There isn't any reason to just call it from fsl_pci_init and simplify things a bit. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28pci/fsl_pci_init: Fold pci_setup_indirect into fsl_pci_initKumar Gala
Every platform that calls fsl_pci_init calls pci_setup_indirect before it calls fsl_pci_init. There isn't any reason to just call it from fsl_pci_init and simplify things a bit. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-04fsl_pci: Renamed immap_fsl_pci.h to fsl_pci.hKumar Gala
Rename the pci header for FSL HW so we can move some prototypes in there and stop doing explicit externs Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-02-07pci: Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY for clarityKumar Gala
The PCI_REGION_MEMORY and PCI_REGION_MEM are a bit to similar and can be confusing when reading the code. Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY to clarify its used for system memory mapping purposes. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-19pci/fsl_pci_init: Enable inbound PCI config cyclesPeter Tyser
Add fsl_pci_config_unlock() function to enable a PCI/PCIe interface configured in agent/endpoint mode to respond to inbound PCI configuration cycles. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2008-12-09drivers/fsl_pci_init: Fix compile warningKumar Gala
fsl_pci_init.c: In function 'fsl_pci_setup_inbound_windows': fsl_pci_init.c:122: warning: comparison is always true due to limited range of data type The check only makes sense if we are CONFIG_PHYS_64BIT Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-03drivers/fsl_pci_init: Fix inbound window mapping bugBecky Bruce
The current code will cause the creation of a 4GB window starting at 0 if we have more than 4GB of RAM installed, which overlaps with PCI_MEM space and causes pci_bus_to_phys() to return erroneous information. Limit the size to 4GB - 1; which causes the code to create one 2GB and one 1GB window instead. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Andy Fleming <afleming@freescale.com>
2008-10-27powerpc: fix pci window initialization to work with > 4GB DRAMBecky Bruce
The existing code has a few errors that need to be fixed in order to support large RAM sizes. Fix those, and add a comment to make it clearer. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Acked-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-27pci/fsl_pci_init: Removed a bunch pointless trailing backslashes.Kumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-24pci/fsl_pci_init: Added fdt helper for setting up bus-ranges & dma-rangesKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
2008-10-24pci/fsl_pci_init: Add a common PCI inbound setup functionKumar Gala
Add a common setup function that determines the pci_region(s) based on how much memory we have in the system. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
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