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Author SHA1 Message Date
Hauke Mehrtens 84f47cf49e MIPS: Lantiq: Add support for device tree file from boot loader 
This fetches the device tree file like it is specified in the MIPS UHI
interface if one was found. This is also used when the device tree file
was appended to the kernel image with cat.
This code is copied from arch/mips/bmips/setup.c.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: John Crispin <john@phrozen.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12898/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:44 +02:00
Aaro Koskinen 842c1e2c4a MIPS: Octeon: Add DTS for EdgeRouter Lite 
Add DTS for EdgeRouter Lite that is usable as is without any "pruning"
with APPENDED_DTB.

Compared to builtin generic DTB, we can avoid errors and delays from
probing non-existent I2C devices.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:44 +02:00
Aaro Koskinen fa0a497b9e MIPS: Octeon: Add DTS for D-Link DSR-1000N 
Add DTS for D-Link DSR-1000N that is usable as is without any "pruning"
with APPENDED_DTB. Split out the common parts from octeon_3xxx.dts
into octeon_3xxx.dtsi.

Compared to builtin generic DTB, we can specificy fixed links properly
and avoid probing non-existent I2C devices.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12840/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:44 +02:00
Aaro Koskinen 99a7a234c8 MIPS: panic immediately when panic_on_oops 
MIPS wants to sleep 5 seconds before panicking when panic_on_oops is set,
with no apparent reason. Remove this feature, since some users may want
their systems to fail as quickly as possible.

Users who want to delay reboot after panic can use PANIC_TIMEOUT.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12845/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:44 +02:00
Rafał Miłecki 2ab71a02c5 MIPS: BCM47xx: Move SPROM driver to drivers/firmware/ 
Broadcom ARM home routers store SPROM content in NVRAM just like MIPS
ones. To share SPROM code we need to move it out of arch/mips/ to some
common place. We already have bcm47xx_nvram in firmware path and SPROM
should fit there as well.
This driver is responsible for parsing SoC configuration data into a
struct shared between ssb and bcma buses.
This was tested with BCM4706 & BCM5357C0 (BCM47XX) and BCM4708A0
(ARCH_BCM_5301X).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12210/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:43 +02:00
Philipp Zabel b11d022767 MIPS: ralink: Make reset_control_ops const 
The reset_ops structure is never modified. Make it const.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: John Crispin <john@phrozen.org>
Cc: linux-mips@linux-mips.org
Cc: kernel@pengutronix.de
Patchwork: https://patchwork.linux-mips.org/patch/12618/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:43 +02:00
Philipp Zabel 24bc827beb MIPS: lantiq: Make reset_control_ops const 
The reset_ops structure is never modified. Make it const.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: John Crispin <john@phrozen.org>
Cc: linux-mips@linux-mips.org
Cc: kernel@pengutronix.de
Patchwork: https://patchwork.linux-mips.org/patch/12619/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:43 +02:00
Aaro Koskinen 2296cecf71 MIPS: Octeon: device_tree_init: fill mac addresses when using appended dtb 
Fill MAC addresses from bootinfo when using appended DTB.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:43 +02:00
Aaro Koskinen 377de399a1 MIPS: Octeon: device_tree_init: don't fill mac if already set 
Don't fill MAC address if it's already set. This allows DTB to
override the bootinfo.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12589/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:42 +02:00
Aaro Koskinen 43349b9e4b MIPS: Octeon: device_tree_init: use separate pass to fill mac addresses 
Use separate pass to fill MAC addresses. This is needed because we want
to do this also for the appended DTB.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12588/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:42 +02:00
Aaro Koskinen 1a1590ab1a MIPS: Octeon: Use model string from DTB for unknown board type 
Use model string from DTB for board type if the board is unknown.
This is more informative, e.g. with EdgeRouter Pro the /proc/cpuinfo
will display "ubnt,e200 (CN6120p1.1-1000-NSP)" instead of misleading
"Unsupported Board".

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12582/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:42 +02:00
Aaro Koskinen 8f2068bc9e MIPS: Octeon: Initialize system type string after device tree init. 
Initialize system type string after device tree init.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12583/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:42 +02:00
Aaro Koskinen 6ecffafe24 MIPS: Octeon: board_type_to_string: return NULL for unsupported board 
Return NULL for unsupported board.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12581/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:41 +02:00
David Daney 490f7548cf MIPS: OCTEON: Simplify code in octeon_irq_ciu_gpio_set_type() 
Use the trigger type passed in to the function instead of reading it
back out of the irq_data.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12501/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:41 +02:00
David Daney c6d2b22eb5 MIPS: OCTEON: Add SMP support for OCTEON cn78xx et al. 
OCTEON chips with the CIU3 interrupt controller use a different IPI
mechanism that previous models.

Add plat_smp_ops for the cn78xx and probing code to choose between the
two types of ops.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12499/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:41 +02:00
David Daney ce210d35bb MIPS: OCTEON: Add support for OCTEON III interrupt controller. 
Add irq_chip support for both IPI and "normal" interrupts of the CIU3
controller.  Document the device tree binding for the CIU3.

Some functions are non-static as they will be used by follow-on
support for MSI-X.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12500/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:41 +02:00
David Daney 9bc2223995 MIPS: OCTEON: Don't attempt to use nonexistent registers on OCTEON III models. 
Attempts to read the nonexistent registers results in bus errors.
Either use registers that exist, or don't do the access as appropriate.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12502/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:40 +02:00
David Daney 182a6d1cd3 MIPS: OCTEON: Add model checking support for cn73xx, cnf75xx and cn78xx 
Follow on patchs need to be able to distinguish the new models.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12498/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:40 +02:00
David Daney 2df11221bd MIPS: OCTEON: Add register definitions for cn73xx, cnf75xx and cn78xx. 
These new members of the OCTEON III family have some new registers,
update some of the definitions for use in follow on patches.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12497/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:40 +02:00
David Daney 1d2753a66a MIPS: Select CONFIG_HANDLE_DOMAIN_IRQ and make it work. 
Per the subject, always select HANDLE_DOMAIN_IRQ, and implement
set_irq_regs() so that it actually works.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12496/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:40 +02:00
David Daney 2253e0b9d9 MIPS: OCTEON: Remove some code limiting NR_IRQS to 255 
Follow-on patches for OCTEON III will increase the number of irqs to
potentially more than 256.

Increase the width of the octeon_irq_ciu_to_irq to int to be able to
handle this case.  Remove the hacky code that verified that u8 would
not be overflowed.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12495/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:39 +02:00
David Daney 7d52ab163c MIPS: OCTEON: Extend number of supported CPUs past 32 
To support more than 48 CPUs, the bootinfo structure grows a new
coremask structure.  Add the definition of the structure and add it to
struct cvmx_bootinfo.  In prom_init(), copy the new coremask data into
the sysinfo structure, and use it in smp_setup().

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12319/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:39 +02:00
David Daney 58546e3b73 MIPS: OCTEON: Remove dead code from cvmx-sysinfo. 
Get rid of the long unused code.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12318/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:39 +02:00
David Daney b8c8f66507 MIPS: Add CPU identifiers and probing for Cavium CN73xx and CNF75xx processors. 
Add new processor identifiers for Cavium CN73xx and CNF75xx
processors, and probe for them in cpu-probe.c

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12311/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:38 +02:00
Ralf Baechle 34ae8e3688 MIPS: highmem: Turn flush_cache_kmaps into a no-op. 
It was calling flush_cache_all() which is a no-op since a long time anyway
and which was overkill in the old days when it was actually doing something
because only the D-cache needs to be flushed, never the I-cache, never
the S-cache.  Since however highmem on MIPS is still only supported on
processors that don't suffer from cache aliases, we could turn
flush_cache_kmaps() into a no-op - but for paranoia's sake we rather make
it BUG_ON(cpu_has_dc_aliases()).

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-05-13 14:01:38 +02:00