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* Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2012-03-271-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull arch/microblaze fixes from Michal Simek * 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Handle TLB skip size dynamically microblaze: Introduce TLB skip size microblaze: Improve TLB calculation for small systems microblaze: Extend space for compiled-in FDT to 32kB microblaze: Clear all MSR flags on the first kernel instruction microblaze: Use node name instead of compatible string microblaze: Fix mapin_ram function microblaze: Highmem support microblaze: Use active regions microblaze: Show more detailed information about memory microblaze: Introduce fixmap microblaze: mm: Fix lowmem max memory size limits microblaze: mm: Use ZONE_DMA instead of ZONE_NORMAL microblaze: trivial: Fix typo fault in timer.c microblaze: Use vsprintf extention %pf with builtin_return_address microblaze: Add PVR version string for MB 8.20.b and 8.30.a microblaze: Fix makefile to work with latest toolchain microblaze: Fix typo in early_printk.c
| * microblaze: Use node name instead of compatible stringMichal Simek2012-03-231-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Change report in bootlog: Origin: xlnx,xps-intc-1.00.a #0 at 0xc8000000, num_irq=6, edge=0x4 xlnx,xps-timer-1.00.a #0 at 0xc8004000, irq=2 New: interrupt-controller #0 at 0xc8000000, num_irq=6, edge=0x4 system-timer #0 at 0xc8004000, irq=2 Signed-off-by: Michal Simek <monstr@monstr.eu>
* | irq_domain/microblaze: Convert microblaze to use irq_domainsGrant Likely2012-02-161-24/+37
|/ | | | | | | | | | | | | | This patch converts Microblaze to use the irq_domain remapper and get away from hard coding the offset between hwirq number and the linux irq number space. This also paves the way for multiple interrupt controllers. v2: Don't enable SPARSE_IRQ and keep NR_IRQS set to 33 Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Michal Simek <monstr@monstr.eu> Cc: Rob Herring <rob.herring@calxeda.com> Cc: John Williams <john.williams@petalogix.com> Cc: John Linn <john.linn@xilinx.com>
* microblaze: Change NO_IRQ to 0Michal Simek2012-01-051-13/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | As has been discussed many times[1], Using NO_IRQ set to anything other than 0 is bug waiting to happen since many drivers follow the pattern "if (!irq)" for testing whether or not an irq has been set. This patch changes the Microblaze NO_IRQ setting from -1 to 0 to bring it in line with most of the rest of the kernel. It also prepares for Microblaze eventually supporting multiple interrupt controllers by breaking the assumption that hwirq# == Linux IRQ#. The Linux IRQ number is just a cookie with no guarantee of a direct relationship with the hardware irq arrangement. At this point, Microblaze interrupt handling only supports only one instance of one kind of interrupt controller (xilinx_intc). This change shouldn't affect any architecture code outside of the interrupt controller driver and the irq_of mapping. Updated to 3.2 and to use irq_data.hwirq by Rob Herring. Tested and fixed by Michal Simek. [1] http://lkml.org/lkml/2005/11/21/221 Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: intc: Change variable nameMichal Simek2012-01-051-6/+5
| | | | | | | intr_type is mask - change name. s/intr_type/intr_mask/g Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Use of_find_compatible_node for timer and intcMichal Simek2012-01-051-13/+4
| | | | | | | Calling of_find_compatible_node instead of calling private code which does the same. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Do not show error message for 32 interrupt linesMichal Simek2011-07-271-1/+1
| | | | | | | | When interrupt controller uses 32 interrupts lines the kernel show error message about mismatch in kind-of-intr parameter because it exceeds u32. Recast fixs this issue. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Fix level/edge irq sensibilityMichal Simek2011-04-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patches: "microblaze: Convert to new irq function names" sha (4adc192ec7d977c74c750320f289af9d61c1caca) and "microblaze: Use generic show_interrupts()" sha(9d61c18b25726306c9231428c17db42e3ff29ba7) should also setup edge/level in irq_set_chip_and_handler_name name parameter. Error log: ~ # cat /proc/interrupts CPU0 2: 2 Xilinx INTC-Xilinx INTC eth0 3: 2 Xilinx INTC-Xilinx INTC eth0 4: 241 Xilinx INTC-Xilinx INTC timer 6: 108 Xilinx INTC-Xilinx INTC serial Fixed: ~ # cat /proc/interrupts CPU0 2: 2 Xilinx INTC-level eth0 3: 2 Xilinx INTC-level eth0 4: 238 Xilinx INTC-edge timer 6: 108 Xilinx INTC-level serial Signed-off-by: Michal Simek <monstr@monstr.eu> Acked-by: Thomas Gleixner <tglx@linutronix.de> --- v2: Fix exchanged edge and level
* microblaze: Convert to new irq function namesThomas Gleixner2011-03-291-3/+3
| | | | | | | | Namespace conversion scripted with coccinelle. Also retrieve the irq type from irq_data in intc_enable_or_unmask() Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* microblaze: Convert irq_chip to new functionsThomas Gleixner2011-03-091-19/+19
| | | | | | | Use proper irq_desc wrappers while at it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Remove stale irq_chip.endThomas Gleixner2011-03-091-13/+0
| | | | | | | | | irq_chip.end got obsolete with the removal of __do_IRQ(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Tested-by: Michal Simek <monstr@monstr.eu> LKML-Reference: <20110203004210.240154507@linutronix.de>
* microblaze: Add support for little-endian MicroblazeMichal Simek2010-10-211-3/+6
| | | | | | | | | | | | | Microblaze little-endian toolchain exports __MICROBLAZEEL__ which is used in the kernel to identify little/big endian. The most of the changes are in loading values from DTB which is always big endian. Little endian platforms are based on new AXI bus which has impact to early uartlite initialization. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Remove additional compatible propertiesMichal Simek2010-10-211-3/+0
| | | | | | | Device-tree BSP generates longer compatible properties that's why we can remove extra/old one. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Use static const char * const where possibleJoe Perches2010-10-211-1/+1
| | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Fix level interrupt ACKingsteve@digidescorp.com2009-12-141-1/+9
| | | | | | | | | Level interrupts need to be ack'd in the unmask handler, as in powerpc. Among other issues, this bug causes the system clock to appear to run at double-speed. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Sane handling of missing timer/intc in device treeJohn Williams2009-08-181-0/+2
| | | | | | | | | | This code path doesn't test any returned pointers for NULL, leading to a bad kernel page fault if there's no timer/intc found. Slightly better is to BUG(), but even better still would be a printk beforehand. Signed-off-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Fix kind-of-intr checking against number of interruptsMichal Simek2009-05-181-2/+2
| | | | | | + Fix typographic fault. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze_v8: Interrupt handling and timer supportMichal Simek2009-03-271-0/+172
Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Reviewed-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
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