- 15 Jul, 2014 5 commits
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Kishon Vijay Abraham I authored
Added missing clocks used by second instance of PCIe PHY. The documention for this nodes can be found @ ../bindings/clock/ti/gate.txt. Cc: Rajendra Nayak <rnayak@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by:
Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by:
Tony Lindgren <tony@atomide.com>
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Kishon Vijay Abraham I authored
There are two instances of PCIe PHY in DRA7xx. So renamed optfclk_pciephy_32khz, optfclk_pciephy_clk and optfclk_pciephy_div_clk to optfclk_pciephy1_32khz, optfclk_pciephy1_clk and optfclk_pciephy1_div_clk respectively. This is needed for adding the clocks for second PCIe PHY instance. Cc: Rajendra Nayak <rnayak@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by:
Keerthy <j-keerthy@ti.com> Signed-off-by:
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Kishon Vijay Abraham I authored
Added missing 32KHz clock used by PCIe PHY. Figure 26-19. PCIe PHY Subsystem Integration in vE of DRA7xx ES1.0 TRM shows 32KHz is used by PCIe PHY. Cc: Rajendra Nayak <rnayak@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by:
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Keerthy authored
Change the parent of apll_pcie_in_clk_mux to dpll_pcie_ref_m2ldo_ck from dpll_pcie_ref_ck. Figure 26-22. DPLL_PCIE_REF Functional Block Diagram in vE of DRA7xx ES1.0 TRM shows the signal name for the output of post divider (M2) is CLKOUTLDO. Figure 26-21. PCIe PHY Clock Generator Overview shows CLKOUTLDO is used as input to apll mux. So the actual output of dpll is dpll_pcie_ref_m2ldo_ck which is also the input of apll. Cc: Rajendra Nayak <rnayak@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by:
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Keerthy authored
Add divider table to optfclk_pciephy_div clock. The 8th bit of CM_CLKMODE_APLL_PCIE can be programmed to either 0x0 or 0x1 based on if the divider value is 0x2 or 0x1. Figure 26-21. PCIe PHY Clock Generator Overview in vE of DRA7xx ES1.0 shows the block diagram of Clock Generator Subsystem of PCIe PHY module. The divider value if '1' should be programmed in order to get the correct PCIE_PHY_DIV_GCLK frequency (2.5GHz). Cc: Rajendra Nayak <rnayak@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by:
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- 09 Jul, 2014 10 commits
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Tony Lindgren authored
Merge branch 'for-v3.17/omap2-use-dt-clks' of http://github.com/t-kristo/linux-pm into omap-for-v3.17/dt
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Roger Quadros authored
The ldousb_reg regulator provides power to the USB1 and USB2 High Speed PHYs. Signed-off-by:
Roger Quadros <rogerq@ti.com> Signed-off-by:
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Keerthy authored
Enable TPS65218 config options. Signed-off-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
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Keerthy authored
Add TPS65218 device tree nodes. i2c clock frequency setting also added as part of tps65218 nodes addition. As i2c clock enabling is required. Signed-off-by:
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Keerthy authored
Fix i2c nodes indentation. Signed-off-by:
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Keerthy authored
Add TPS65218 device tree nodes. i2c clock frequency setting also added as part of tps65218 nodes addition. As i2c clock enabling is required. Signed-off-by:
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Ash Charles authored
This adds the Gumstix Pepper[1] single-board computer based on the TI AM335x processor. Schematics are available [2]. [1] https://store.gumstix.com/index.php/products/344/ [2] https://pubs.gumstix.com/boards/PEPPER/Signed-off-by:
Ash Charles <ashcharles@gmail.com> Signed-off-by:
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Tony Lindgren authored
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R Sricharan authored
There is a IRQ crossbar device in the soc, which maps the irq requests from the peripherals to the mpu interrupt controller's inputs. The Peripheral irq requests are connected to only one crossbar input and the output of the crossbar is connected to only one controller's input line. The crossbar device is used to map a peripheral input to a free mpu's interrupt controller line. Here, adding a new crossbar device node and replacing all the peripheral interrupt numbers with its fixed crossbar input lines. Signed-off-by:
Sricharan R <r.sricharan@ti.com> Signed-off-by:
Nishanth Menon <nm@ti.com> Cc: Benoit Cousson <bcousson@baylibre.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Signed-off-by:
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R Sricharan authored
There is a IRQ crossbar device in the soc, which maps the irq requests from the peripherals to the mpu interrupt controller's inputs. The gic provides the support for such IPs in the form of routable-irqs. So adding the property here to gic node. Signed-off-by:
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- 02 Jul, 2014 6 commits
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Tero Kristo authored
This is no longer needed as clock data is provided through DT. Signed-off-by:Tero Kristo <t-kristo@ti.com>
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Tero Kristo authored
Otherwise legacy boot clock data is used. This patch also includes the clock data files to the base dtsi files. Signed-off-by: -
Tero Kristo authored
This patch adds support for initializing also omap2-prcm and omap2-scrm through DT. Signed-off-by: -
Tero Kristo authored
Cleans up the code a bit and is useful for clock data DT conversion. Signed-off-by: -
Darren Etheridge authored
Add the necessary nodes to enable the LCD controller and the LCD panel that is attached to the Texas Instruments AM335x EVMSK platform. Also setup the necessary pin mux within the DT file to drive the LCD connector and add the correct pinmux settings for the lcd pins to be configured to when the SoC goes into sleep state for the minimum power consumption. For the sleep mode LCD pin settings, MUX_MODE7 is chosen as this corresponds to switching the pins into input GPIO's with an internal pulldown. Which has been determined to offer the lowest power solution vs leaving the pins configured in LCD mode. Signed-off-by:
Darren Etheridge <detheridge@ti.com> Acked-by:
Wolfram Sang <wsa@sang-engineering.com> Tested-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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Tero Kristo authored
osc_ck can be simply defined as a multiplexer clock, and the sys_ck can be a simple divider. Signed-off-by:
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- 01 Jul, 2014 2 commits
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Felipe Balbi authored
Add support for TI's AM437x StarterKit Evaluation Module. Cc: Josh Elliot <jelliott@ti.com> Signed-off-by:
Franklin Cooper Jr. <fcooper@ti.com> Tested-by:
Tom Rini <trini@ti.com> Tested-by:
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Felipe Balbi authored
By providing labels for rtc, wdt, cpu and dispc nodes, boards can access them to add board-specific data. Signed-off-by:
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- 30 Jun, 2014 16 commits
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Nishanth Menon authored
On certain platforms such as DRA7, SPIs 0, 1, 2, 3, 5, 6, 10, 131, 132, 133 are direct wired to hardware blocks bypassing crossbar. This quirky implementation is *NOT* supposed to be the expectation of crossbar hardware usage. However, these are already marked in our description of the hardware with SKIP and RESERVED where appropriate. Unfortunately, we need to be able to refer to these hardwired IRQs. So, to request these, crossbar driver can use the existing information from it's table that these SKIP/RESERVED maps are direct wired sources and generic allocation/programming of crossbar should be avoided. Signed-off-by:
Santosh Shilimkar <santosh.shilimkar@ti.com> Link: https://lkml.kernel.org/r/1403766634-18543-17-git-send-email-r.sricharan@ti.comSigned-off-by:
Jason Cooper <jason@lakedaemon.net>
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Nishanth Menon authored
The current crossbar description does not include the description required for the consumer of the crossbar, a.k.a devices whoes events pass through the crossbar into the GIC interrupt controller. So, provide documentation for the same. Signed-off-by:
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Nishanth Menon authored
This is a basic check to ensure that crossbar register needs to be written. This ensures that we have a common check which is used in both map and unmap logic. Signed-off-by:
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Nishanth Menon authored
Currently we attempt to map any crossbar value to an IRQ, however, this is not correct from hardware perspective. There is a max crossbar event number upto which hardware supports. So describe the same in device tree using 'ti,max-crossbar-sources' property and use it to validate requests. [ jac - remove MAX_SOURCES from binding doc, use integer because we shouldn't put implementation details in the binding docs ] Signed-off-by:
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Sricharan R authored
Adding kerneldoc for unmap callback function. Signed-off-by:
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Sricharan R authored
If crossbar_of_init returns with a error, then set the cb pointer to null. Signed-off-by:
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Nishanth Menon authored
Using err1,2,3,4 etc makes it hard to ensure a new exit path in the middle will not result in spurious changes, so rename the error paths as per the function it does. Signed-off-by:
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Nishanth Menon authored
crossbar_of_init always returns -ENOMEM in case of errors. There can be other causes of failure like invalid data from DT. So return a appropriate error value for that case. Signed-off-by:
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Nishanth Menon authored
Adding missing properties for kerneldoc (@write) and cleanup of harmless warnings while we are here. kerneldoc warnings: Warning(drivers/irqchip/irq-crossbar.c:27): missing initial short description on line: * struct crossbar_device: crossbar device description Info(drivers/irqchip/irq-crossbar.c:27): Scanning doc for struct Warning(drivers/irqchip/irq-crossbar.c:39): No description found for parameter 'write' 2 warnings Signed-off-by:
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Nishanth Menon authored
There is absolutely no need for crossbar driver to expose functions and variables into global namespace. So make them all static Also fix a couple of checkpatch warnings. Fixes sparse warnings: drivers/irqchip/irq-crossbar.c:129:29: warning: symbol 'routable_irq_domain_ops' was not declared. Should it be static? drivers/irqchip/irq-crossbar.c:261:12: warning: symbol 'irqcrossbar_init' was not declared. Should it be static? Checkpatch warnings: WARNING: Prefer kcalloc over kzalloc with multiply + cb->irq_map = kzalloc(max * sizeof(int), GFP_KERNEL); WARNING: Prefer kcalloc over kzalloc with multiply + cb->register_offsets = kzalloc(max * sizeof(int), GFP_KERNEL); Signed-off-by:
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Nishanth Menon authored
IS_ERR_VALUE makes sense only *if* there could be valid values in negative error range. But in the cases that we do use it, there is no such case. Just remove the same. Signed-off-by:
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Nishanth Menon authored
Reverse the search algorithm to ensure that address mapping and IRQ allocation logics are proper. This makes the below bugs visible sooner. class 1. address space errors -> example: reg = <a size_b> ti,max-irqs = is a wrong parameter class 2: irq-reserved list - which decides which entries in the address space is not actually wired in class 3: wrong list of routable-irqs. In general allocating from max to min tends to have benefits in ensuring the different issues that may be present in dts is easily caught at definition time, rather than at a later point in time. Signed-off-by:
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Nishanth Menon authored
Since crossbar is s/w configurable, the initial settings of the crossbar cannot be assumed to be sane. This implies that: a) On initialization all un-reserved crossbars must be initialized to a known 'safe' value. b) When unmapping the interrupt, the safe value must be written to ensure that the crossbar mapping matches with interrupt controller usage. So provide a safe value in the dt data to map if '0' is not safe for the platform and use it during init and unmap While at this, fix the below checkpatch warning. Fixes checkpatch warning: WARNING: Unnecessary space before function pointer arguments #37: FILE: drivers/irqchip/irq-crossbar.c:37: + void (*write) (int, int); Signed-off-by:
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Nishanth Menon authored
When, in the system due to varied reasons, interrupts might be unusable due to hardware behavior, but register maps do exist, then those interrupts should be skipped while mapping irq to crossbars. Signed-off-by:
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Nishanth Menon authored
If irq_of_parse_and_map is executed twice, the same crossbar is mapped to two different GIC interrupts. This is completely undesirable. Instead, check if the requested crossbar event is pre-allocated and provide that GIC mapping back to caller if already allocated. Signed-off-by:
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Nishanth Menon authored
Today '0' is actually reserved, but may not be the same in the future. So, use a flag to mark the GIC interrupts that are reserved. Signed-off-by:
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- 16 Jun, 2014 1 commit
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Linus Torvalds authored
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