- 16 Mar, 2012 17 commits
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Timur Tabi authored
The Freescale P1022 has a unique pin muxing "feature" where the DIU video controller's video signals are muxed with 24 of the local bus address signals. When the DIU is enabled, the bulk of the local bus is disabled, preventing access to memory-mapped devices like NOR flash and the pixis FPGA. Therefore, if the DIU is going to be enabled, then memory-mapped devices on the localbus, like NOR flash, need to be disabled. This also means that the localbus is not a 'simple-bus' any more, so remove that string from the compatible node. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Timur Tabi authored
Create a 32-bit address space version of p1022ds.dts. To avoid confusion, p1022ds.dts is renamed to p1022ds_36b.dts. We also create p1022ds.dtsi to store some common nodes. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Xie Xiaobo authored
The properties indicates that the hardware supports waking up via magic packet. Signed-off-by: Xie Xiaobo <X.Xie@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Xie Xiaobo authored
Add partitions for NOR and NAND Flash. Signed-off-by: Xie Xiaobo <X.Xie@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Liu Shuo authored
Signed-off-by: Liu Shuo <soniccat.liu@gmail.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Gustavo Zacarias authored
Fix typo introduced by "powerpc: Add TBI PHY node to first MDIO bus" from Andy Fleming. It's device_type rather than device-type, which causes the mdio probe to fail thus making all gianfar ethernet interfaces unusable. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Sebastian Andrzej Siewior authored
This is here most likely since the FSL bsp. Back in the FSL bsp it was set to 50Mhz and working. However the driver divided the SoC freq. only by 2. According to the TRM the platform clock (which the manual refers in its formula) is the system clock divided by two. So in the end it has to divide by 4 and this is what the fsl-spi driver in tree is doing. Since then the flash is not wokring I guess. After chaning the freq from 50Mhz to 40Mhz like others do then I can access the flash. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Sebastian Andrzej Siewior authored
It is not at 0xffa00000. According to current u-boot source the NAND controller is always at 0xff800000 and it is either at CS0 or CS1 depending on NAND or NAND+NOR mode. In 36bit mode it is shifted to 0xfff800000 but it has always an eight there and never an A. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Liu Gang authored
For the file "arch/powerpc/sysdev/fsl_rmu.c", there will be some compile errors while using the corenet64_smp_defconfig: .../fsl_rmu.c:315: error: cast from pointer to integer of different size .../fsl_rmu.c:320: error: cast to pointer from integer of different size .../fsl_rmu.c:320: error: cast to pointer from integer of different size .../fsl_rmu.c:320: error: cast to pointer from integer of different size .../fsl_rmu.c:330: error: cast to pointer from integer of different size .../fsl_rmu.c:332: error: cast to pointer from integer of different size .../fsl_rmu.c:339: error: cast to pointer from integer of different size .../fsl_rmu.c:340: error: cast to pointer from integer of different size .../fsl_rmu.c:341: error: cast to pointer from integer of different size .../fsl_rmu.c:348: error: cast to pointer from integer of different size .../fsl_rmu.c:348: error: cast to pointer from integer of different size .../fsl_rmu.c:348: error: cast to pointer from integer of different size .../fsl_rmu.c:659: error: cast from pointer to integer of different size .../fsl_rmu.c:659: error: format '%8.8x' expects type 'unsigned int', but argument 5 has type 'size_t' .../fsl_rmu.c:985: error: cast from pointer to integer of different size .../fsl_rmu.c:997: error: cast to pointer from integer of different size Rewrote the corresponding code with the support of 64bit building. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Liu Gang authored
For the file "arch/powerpc/sysdev/fsl_rio.c", there will be some relocation errors while using the corenet64_smp_defconfig: WARNING: modpost: Found 6 section mismatch(es). To see full details build your kernel with: 'make CONFIG_DEBUG_SECTION_MISMATCH=y' GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 arch/powerpc/sysdev/built-in.o:(__ex_table+0x0): relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3208 arch/powerpc/sysdev/built-in.o:(__ex_table+0x2): relocation truncated to fit: R_PPC64_ADDR16 against `.fixup' arch/powerpc/sysdev/built-in.o:(__ex_table+0x4): relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3230 arch/powerpc/sysdev/built-in.o:(__ex_table+0x6): relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'+c arch/powerpc/sysdev/built-in.o:(__ex_table+0x8): relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3250 arch/powerpc/sysdev/built-in.o:(__ex_table+0xa): relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'+18 Rewrote the corresponding code with the support of 64bit building. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Zhicheng Fan authored
P1025RDB Overview ------------------ 1Gbyte DDR3 SDRAM 32 Mbyte NAND flash 16Mbyte NOR flash 16 Mbyte SPI flash SD connector to interface with the SD memory card Real-time clock on I2C bus PCIe: - x1 PCIe slot - x1 mini-PCIe slot 10/100/1000 BaseT Ethernet ports: - eTSEC1, RGMII: one 10/100/1000 port using AtherosTM AR8021 - eTSEC2, SGMII: one 10/100/1000 port using VitesseTM VSC8221 - eTSEC3, RGMII: one 10/100/1000 port using AtherosTM AR8021 USB 2.0 port: - Two USB2.0 Type A receptacles - One USB2.0 signal to Mini PCIe slot Dual RJ45 UART ports: - DUART interface: supports two UARTs up to 115200 bps for console display Signed-off-by: Zhicheng Fan <b32736@freescale.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Zhicheng Fan authored
Signed-off-by: Zhicheng Fan <b32736@freescale.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Ramneek Mehresh authored
Add usb controller version info for the following: MPC8536, P1010, P1020, P1021, P1022, P1023, P2020, P2041, P3041, P3060, P5020 Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Tang Yuantian authored
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Tang Yuantian <b29983@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Tang Yuantian authored
P2020RDB-PC Board shares the same design(PCB) as P102x RDB style platforms. The difference between this platform and the already existing P2020RDB is mainly with respect to DDR. The P2020RDB-PC has a DDR3 memory. The P2020RDB-PC also has a CPLD device connected to local bus. The main differences from the P102x RDB-PC is 64-bit DDR and SYSCLK of 100Mhz. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Tang Yuantian <b29983@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Xu Jiucheng authored
Signed-off-by: Xu Jiucheng <B37781@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Xu Jiucheng authored
P1021RDB-PC Overview ----------------- 1Gbyte DDR3 (on board DDR) 16Mbyte NOR flash 32Mbyte eSLC NAND Flash 256 Kbit M24256 I2C EEPROM 128 Mbit SPI Flash memory Real-time clock on I2C bus SD/MMC connector to interface with the SD memory card PCIex - x1 PCIe slot or x1 PCIe to dual SATA controller - x1 mini-PCIe slot USB 2.0 - ULPI PHY interface: SMSC USB3300 USB PHY and Genesys Logic’s GL850A - Two USB2.0 Type A receptacles - One USB2.0 signal to Mini PCIe slot eTSEC1: Connected to RGMII PHY VSC7385 eTSEC2: Connected to SGMII PHY VSC8221 eTSEC3: Connected to SGMII PHY AR8021 DUART interface: supports two UARTs up to 115200 bps for console display Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Xu Jiucheng <B37781@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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- 15 Mar, 2012 3 commits
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Kumar Gala authored
Add basic support for e6500 core in its single threaded mode. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
The registers that describe size supported by TLB are different on MMU v2 as well as we support power of two page sizes. For now we continue to assume that FSL variable size array supports all page sizes up to the maximum one reported in TLB1PS. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Paul Gortmaker authored
The SERIAL_8250_EXTENDED option just enables access to other less regularly used options, like SERIAL_8250_SHARE_IRQ. Select it to get rid of this warning when selecting the child option living underneath it. warning: (FSL_SOC_BOOKE && SERIAL_8250_RM9K) selects SERIAL_8250_SHARE_IRQ which has unmet direct dependencies (HAS_IOMEM && SERIAL_8250_EXTENDED) Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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- 12 Mar, 2012 1 commit
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Benjamin Herrenschmidt authored
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- 09 Mar, 2012 19 commits
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Benjamin Herrenschmidt authored
The current implementation of lazy interrupts handling has some issues that this tries to address. We don't do the various workarounds we need to do when re-enabling interrupts in some cases such as when returning from an interrupt and thus we may still lose or get delayed decrementer or doorbell interrupts. The current scheme also makes it much harder to handle the external "edge" interrupts provided by some BookE processors when using the EPR facility (External Proxy) and the Freescale Hypervisor. Additionally, we tend to keep interrupts hard disabled in a number of cases, such as decrementer interrupts, external interrupts, or when a masked decrementer interrupt is pending. This is sub-optimal. This is an attempt at fixing it all in one go by reworking the way we do the lazy interrupt disabling from the ground up. The base idea is to replace the "hard_enabled" field with a "irq_happened" field in which we store a bit mask of what interrupt occurred while soft-disabled. When re-enabling, either via arch_local_irq_restore() or when returning from an interrupt, we can now decide what to do by testing bits in that field. We then implement replaying of the missed interrupts either by re-using the existing exception frame (in exception exit case) or via the creation of a new one from an assembly trampoline (in the arch_local_irq_enable case). This removes the need to play with the decrementer to try to create fake interrupts, among others. In addition, this adds a few refinements: - We no longer hard disable decrementer interrupts that occur while soft-disabled. We now simply bump the decrementer back to max (on BookS) or leave it stopped (on BookE) and continue with hard interrupts enabled, which means that we'll potentially get better sample quality from performance monitor interrupts. - Timer, decrementer and doorbell interrupts now hard-enable shortly after removing the source of the interrupt, which means they no longer run entirely hard disabled. Again, this will improve perf sample quality. - On Book3E 64-bit, we now make the performance monitor interrupt act as an NMI like Book3S (the necessary C code for that to work appear to already be present in the FSL perf code, notably calling nmi_enter instead of irq_enter). (This also fixes a bug where BookE perfmon interrupts could clobber r14 ... oops) - We could make "masked" decrementer interrupts act as NMIs when doing timer-based perf sampling to improve the sample quality. Signed-off-by-yet: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- v2: - Add hard-enable to decrementer, timer and doorbells - Fix CR clobber in masked irq handling on BookE - Make embedded perf interrupt act as an NMI - Add a PACA_HAPPENED_EE_EDGE for use by FSL if they want to retrigger an interrupt without preventing hard-enable v3: - Fix or vs. ori bug on Book3E - Fix enabling of interrupts for some exceptions on Book3E v4: - Fix resend of doorbells on return from interrupt on Book3E v5: - Rebased on top of my latest series, which involves some significant rework of some aspects of the patch. v6: - 32-bit compile fix - more compile fixes with various .config combos - factor out the asm code to soft-disable interrupts - remove the C wrapper around preempt_schedule_irq v7: - Fix a bug with hard irq state tracking on native power7
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Gavin Shan authored
With the original EEH implementation, the access to config space of the corresponding PCI device is done by RTAS sensitive function. That depends on pci_dn heavily. That would limit EEH extension to other platforms like powernv because other platforms might have different ways to access PCI config space. The patch splits those functions used to access PCI config space and implement them in platform related EEH component. It would be helpful to support EEH on multiple platforms simutaneously in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
With the original EEH implementation, the EEH global statistics are maintained by individual global variables. That makes the code a little hard to maintain. The patch introduces extra struct eeh_stats for the EEH global statistics so that it can be maintained in collective fashion. It's the rework on the corresponding v5 patch. According to the comments from David Laight, the EEH global statistics have been changed for a litte bit so that they have fixed-type of "u64". Also, the format used to print them has been changed to "%llu" based on David's suggestion. Also, the output format of EEH global statistics should be kept as intacted according to Michael's suggestion that there might be tools parsing them. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
The pci_dn has been replaced with eeh_dev. In order to comply with the rule, the EEH platform implementation on pSeries should also be adjusted for a little bit so that it will depend on eeh_dev instead of pci_dn. The patch replaces pci_dn with eeh_dev. The corresponding information will be retrieved from eeh_dev instead of pci_dn. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
The original EEH implementation is heavily depending on struct pci_dn. We have to put EEH related information to pci_dn. Actually, we could split struct pci_dn so that the EEH sensitive information to form an individual struct, then EEH looks more independent. The patch replaces pci_dn with eeh_dev for EEH aux components like event and driver. Also, the eeh_event struct has been adjusted for a little bit since eeh_dev has linked the associated FDT (Flat Device Tree) node and PCI device. It's not necessary for eeh_event struct to trace FDT node and PCI device. We can just simply to trace eeh_dev in eeh_event. The patch also renames function pcid_name() to eeh_pcid_name(), which should be missed in the previous patch where the EEH aux components have been cleaned up. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
The original EEH implementation is heavily depending on struct pci_dn. We have to put EEH related information to pci_dn. Actually, we could split struct pci_dn so that the EEH sensitive information to form an individual struct, then EEH looks more independent. The patch replaces pci_dn with eeh_dev for EEH core. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
With original EEH implementation, struct pci_dn is used while building PCI I/O address cache, which helps on searching the corresponding PCI device according to the given physical I/O address. Besides, pci_dn is associated with the corresponding PCI device while building its I/O cache. The patch replaces struct pci_dn with struct eeh_dev so that EEH address cache won't depend on struct pci_dn. That will help EEH to become an independent module in future. Besides, the binding of eeh_dev and PCI device is done while building PCI device I/O cache. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
With original EEH implementation, all EEH related statistics have been put into struct pci_dn. We've introduced struct eeh_dev to replace struct pci_dn in EEH core components, including EEH sysfs component. The patch shows EEH statistics from struct eeh_dev instead of struct pci_dn in EEH sysfs component. Besides, it also fixed the EEH device retrieval from PCI device, which was introduced by the previous patch in the series of patch. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
Original EEH implementation depends on struct pci_dn heavily. However, EEH shouldn't depend on that actually because EEH needn't share much information with other PCI components. That's to say, EEH should have worked independently. The patch introduces struct eeh_dev so that EEH core components needn't be working based on struct pci_dn in future. Also, struct pci_dn, struct eeh_dev instances are created in dynamic fasion and the binding with EEH device, OF node, PCI device is implemented as well. The EEH devices are created after PHBs are detected and initialized, but PCI emunation hasn't started yet. Apart from that, PHB might be created dynamically through DLPAR component and the EEH devices should be creatd as well. Another case might be OF node is created dynamically by DR (Dynamic Reconfiguration), which has been defined by PAPR. For those OF nodes created by DR, EEH devices should be also created accordingly. The binding between EEH device and OF node is done while the EEH device is initially created. The binding between EEH device and PCI device should be done after PCI emunation is done. Besides, PCI hotplug also needs the binding so that the EEH devices could be traced from the newly coming PCI buses or PCI devices. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
The patch does some cleanup on the function names of EEH aux components. Currently, only couple of function names from eeh_cache have been adjusted so that: * The function name has prefix "eeh_addr_cache". * Move around pci_addr_cache_build() in the header file to reflect function call sequence. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
There're several EEH aux components and the patch does some cleanup for them so that they look more clean. * Duplicated comments have been removed from the header file. * Comments have been reorganized so that it looks more clean. * The leading comments of functions are adjusted for a little bit so that the result of "make pdfdocs" would be more unified. * Function calls "xxx ()" has been replaced by "xxx()". Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
In order to enable particular PCI device, which has been included in the parent PE. The involved PCI bridges should be enabled explicitly if there has. On pSeries platform, there're dedicated RTAS calls to fulfil the purpose. The patch implements the function of configuring PCI bridges through the dedicated RTAS calls. Besides, the function has been abstracted by struct eeh_ops::configure_bridge so that the EEH core components could support multiple platforms in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
On RTAS compliant pSeries platform, one dedicated RTAS call has been introduced to retrieve EEH temporary or permanent error log. The patch implements the function of retriving EEH error log through RTAS call. Besides, it has been abstracted by struct eeh_ops::get_log so that EEH core components could support multiple platforms in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
On RTAS compliant pSeries platform, there is a dedicated RTAS call (ibm,set-slot-reset) to reset the specified PE. Furthermore, two types of resets are supported: hot and fundamental. the type of reset is to be used actually depends on the included PCI device's requirements. The patch implements resetting PE on pSeries platform through RTAS call. Besides, it has been abstracted through struct eeh_ops::reset so that EEH core components could support multiple platforms in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
On pSeries platform, the PE state might be temporarily unavailable. In that case, the firmware will return the corresponding wait time. That means the kernel has to wait for appropriate time in order to get the PE state. The patch does the implementation for that. Besides, the function has been abstracted through struct eeh_ops::wait_state so that EEH core components could support multiple platforms in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
On pSeries platform, there're 2 dedicated RTAS calls introduced to retrieve the corresponding PE's state: ibm,read-slot-reset-state and ibm,read-slot-reset-state2. The patch implements the retrieval of PE's state according to the given PE address. Besides, the implementation has been abstracted by struct eeh_ops::get_state so that EEH core components could support multiple platforms in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
There're 2 types of addresses used for EEH operations. The first one would be BDF (Bus/Device/Function) address which is retrieved from the reg property of the corresponding FDT node. Another one is PE address that should be enquired from firmware through RTAS call on pSeries platform. When issuing EEH operation, the PE address has precedence over BDF address. The patch implements retrieving PE address according to the given BDF address on pSeries platform. Also, the struct eeh_early_enable_info has been removed since the information can be figured out from dn->pdn->phb->buid directly and that simplifies the code. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
There're 4 EEH operations that are covered by the dedicated RTAS call <ibm,set-eeh-option>: enable or disable EEH, enable MMIO and enable DMA. At early stage of system boot, the EEH would be tried to enable on PCI device related device node. MMIO and DMA for particular PE should be enabled when doing recovery on EEH errors so that the PE could function properly again. The patch implements it and abstract that through struct eeh_ops::set_eeh. It would be help for EEH to support multiple platforms in future. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gavin Shan authored
The platform specific EEH operations have been abstracted by struct eeh_ops. The individual platroms, including pSeries, needs doing necessary initialization before the platform dependent EEH operations work properly. The patch is addressing that and do necessary platform initialization for pSeries platform. More specificly, it will figure out the tokens of EEH related RTAS calls. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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