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Commit Graph

54 Commits

Author SHA1 Message Date
Simon Horman
1dadad2ffc ARM: mach-shmobile: ap4eb: SCIF port for earlyprintk when using zboot
Initialise the SCIF serial port to allow earlyprintk
output when using zboot.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-11 12:56:52 +09:00
Simon Horman
38915d2e9e ARM: mach-shmobile: mackerel: SCIF port for earlyprintk when using zboot
Initialise the SCIF serial port to allow earlyprintk
output when using zboot. It is based on a very similar
patched for AP4EB.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-11 12:56:47 +09:00
Paul Mundt
c0312b33da ARM: mach-shmobile: update for GIC changes.
This fixes up the SMP support to use the refactored GIC APIs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 12:02:11 +09:00
Paul Mundt
e9d728f528 Merge branch 'rmobile/smp' into rmobile-latest
Conflicts:
	arch/arm/Kconfig
	arch/arm/mach-shmobile/include/mach/entry-macro-intc.S

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:51:35 +09:00
Magnus Damm
018a3fc7e3 ARM: mach-shmobile: Rely on run-time IRQ handlers
Remove now unused IRQ demux code. All R-Mobile and
SH-Mobile processors should register IRQ demux
handlers during run-time.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:43:02 +09:00
Magnus Damm
e74a9625f8 ARM: mach-shmobile: Run-time IRQ handler for GIC
Break-out GIC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:42:56 +09:00
Magnus Damm
863b171952 ARM: mach-shmobile: Run-time IRQ handler for INTCA
Break-out INTC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh7367, sh7377 and sh7372.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:42:50 +09:00
Magnus Damm
3dff8804fc ARM: mach-shmobile: Use shared GIC entry macros
Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the R-Mobile / SH-Mobile processors.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:40:01 +09:00
Simon Horman
eb6908a279 ARM: mach-shmobile: mackerel: Add zboot support
When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:36:28 +09:00
Paul Mundt
5e93c6b4ec Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into rmobile-latest
Conflicts:
	arch/arm/mach-shmobile/Kconfig

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:29:26 +09:00
Russell King
31edf274f9 Merge branches 'ftrace', 'gic', 'io', 'kexec', 'mod', 'sa11x0', 'sh' and 'versatile' into devel 2011-01-05 18:08:10 +00:00
Takashi YOSHII
a0794fd019 ARM: mach-shmobile: sh73a0 GPIO pullup improvement
On SH-Mobile, Pull UP/Downs can be controlled independently
from Function selectors (by lower nibble of PFCR).
It means people may want to use GPIO_FN_xxx_PU/PD in addition
to GPIO_IN_PU/PD which is currently supported.
This patch adds pull-up version for some input signals on
KEYSC, MMC, FSIA as well as SDHI1.

Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-22 16:35:50 +09:00
Magnus Damm
5f53a56af5 ARM: mach-shmobile: sh73a0 INTCS support
Add INTCS support for the sh73a0 processor.

The interrupts on the sh73a0 processor are managed
through controllers such as GIC, INTCS and INTCA.

The ARM cores use the GIC as primary interrupt
controller and the INTCS and INTCA are hanging off
the GIC as cascaded interrupt controllers.

Peripherals connected both to the GIC and the INTC
controllers should if possible only use the GIC.

If no GIC connection is available then INTCS and
INTCA may be used instead.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-22 13:46:12 +09:00
Paul Mundt
8bcee1832d Merge branch 'rmobile/urgent' into rmobile-latest
Conflicts:
	arch/arm/mach-shmobile/include/mach/entry-macro.S

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-21 00:40:51 +09:00
Magnus Damm
5ce2a2ddb5 ARM: mach-shmobile: Bump up NR_IRQS to 1024
Increase NR_IRQS from 512 to 1024 on SH-Mobile ARM.

Needed to support vectors in the sh73a0 INTCS block.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-21 00:27:55 +09:00
Magnus Damm
1cf215a5b4 ARM: mach-shmobile: INTC interrupt priority level demux fix
Fix interrupt priority level handling on SH-Mobile ARM.

SH-Mobile ARM platforms using multiple interrupt priority
levels need this patch to fix a potential dead lock that
may occur if multiple interrupts with different levels
are pending simultaneously.

The default INTC configuration is to use the same priority
level for all interrupts, so this issue does not trigger by
default. It is however common for board code to override the
interrupt priority for certain interrupt sources depending
on the application. Without this fix such boards may lock up.

In detail, this patch updates the INTC code in entry-macro.S
to make sure that the INTLVLA register gets set as expected.

To trigger this bug modify the board specific code to adjust
the interrupt priority level for the ethernet chip. After
changing the priority level simply use flood ping to drown
the board with interrupts.

This patch applies to INTCA-based processors such as sh7372,
sh7377 and sh7372. GIC-based processors are not affected.

Suitable for v2.6.37-rc and stable from v2.6.34 to v2.6.36.

Cc: stable@kernel.org
Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-17 19:42:47 +09:00
Magnus Damm
676b14c36d ARM: mach-shmobile: fix compile warning in mm/init.c
Turn down the warning noise from the compiler,
basically a SH-Mobile specific version of the
patch located in the RMK patch tracker:

6484/1: "fix compile warning in mm/init.c",

Without this patch the following warning triggers:

 CC      arch/arm/kernel/sys_arm.o
arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:606: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int'
  CC      arch/arm/kernel/traps.o

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-17 19:41:13 +09:00
Magnus Damm
72f4d57923 ARM: mach-shmobile: sh73a0 SMP support
Add SMP support for ag5evm and the sh73a0 processor.

Onlining and offlining works well, but at this point
offlined processor cores are not put into sleep mode.

There is no spinlock for syncing the secondary core
with the first one in this implementation. The code
instead relies on the cpu_online() check in __cpu_up().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-14 18:15:47 +09:00
Magnus Damm
1c51ed4fb9 ARM: mach-shmobile: SMP base support
Add SMP base support for R-Mobile / SH-Mobile processors.

This patch contains all base code to support CONFIG_SMP
regardless of ARCH_SHMOBILE processor type. Both local timer
and CPU hotplug are supported, but no processor specific
code is included.

At this point only the default behavior is in place, so
a single core will always be used even though CONFIG_SMP
is enabled on multicore systems.

The SMP Kconfig entry for arch/arm/Kconfig is excluded from
this patch to simplify merging.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-14 18:15:44 +09:00
Paul Mundt
598e227ea9 Merge branches 'rmobile/ag5' and 'rmobile/mackerel' into rmobile-latest 2010-12-13 15:36:36 +09:00
Kuninori Morimoto
3d09fbcd26 ARM: 6514/1: mach-shmobile: Add zboot support for SuperH Mobile ARM
When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

This is the board-specific portion of this patch-set.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-05 08:40:21 +00:00
Kuninori Morimoto
9a4af112bd ARM: 6515/1: Add zboot support for SuperH Mobile ARM
When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

This is the non-board-specific framework portion of this patch-set.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-05 08:40:17 +00:00
Magnus Damm
f6d84f4a7d ARM: mach-shmobile: AG5 clock framework improvements
This patch improves the state of the AG5 clock
framework support. The main clock parent is
automatically detected, but most of the clocks
are not used by any driver or subsystem at this
point. More work is needed for support of multi
media hardware such as FSI and/or LCDC/MIPI-DSI.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-03 16:29:15 +09:00
Paul Mundt
1ad2096c4e Merge branch 'rmobile/mmcif' into rmobile-latest 2010-11-25 16:45:43 +09:00
Guennadi Liakhovetski
6d11dc14e6 ARM: mach-shmobile: add DMA defines for MMCIF on sh7372
Add DMA slave IDs and slave definitions for MMCIF on sh7372.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-25 16:26:35 +09:00
Takashi YOSHII
1cdf370244 ARM: mach-shmobile: Add sh73a0 pinmux support
PFC definitions for sh73a0 to support GPIO and pinmux handling.

Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-19 16:47:16 +09:00
Paul Mundt
45bbaae0dc ARM: mach-shmobile: Split out entry-macros in to GIC and INTC variants.
Presently the entry macros are all globbed together, this simply splits
them out in to their insular variants. Future work such as the GIC
generalization will replace some of these and tidy the abstraction up
further.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-18 16:07:27 +09:00
Magnus Damm
6d9598e24d ARM: mach-shmobile: Initial AG5 and AG5EVM support
This patch adds initial support for Renesas SH-Mobile AG5.

At this point the AG5 CPU support is limited to the ARM
core, SCIF serial and a CMT timer together with L2 cache
and the GIC. The AG5EVM board also supports Ethernet.

Future patches will add support for GPIO, INTCS, CPGA
and platform data / driver updates for devices such as
IIC, LCDC, FSI, KEYSC, CEU and SDHI among others.

The code in entry-macro.S will be cleaned up when the
ARM IRQ demux code improvements have been merged.

Depends on the AG5EVM mach-type recently registered but
not yet present in arch/arm/tools/mach-types.

As the AG5EVM board comes with 512MiB memory it is
recommended to turn on HIGHMEM.

Many thanks to Yoshii-san for initial bring up.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-18 15:45:21 +09:00
Paul Mundt
cad3cde3f6 ARM: mach-shmobile: Allow GPIO chips to register IRQ mappings.
As non-PFC chips are added that may support IRQs, pass through to the
generic helper. This follows the the SH change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-04 12:19:11 +09:00
Kuninori Morimoto
f2ace4a5d7 ARM: mach-shmobile: clock-sh7372: Add FSIDIV clock support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-31 10:40:45 -04:00
Kuninori Morimoto
69ce8aa492 ARM: mach-shmobile: clock-sh7372: FSI parent select support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-15 18:58:41 +09:00
Kuninori Morimoto
685e4080c6 ARM: mach-shmobile: clock-sh7372: add sh7372_ prefix to global clocks
This patch also registered global extal clocks to sh7372.h

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-15 18:58:40 +09:00
Guennadi Liakhovetski
b90884c886 ARM: mach-shmobile: extend clock definitions on sh7372
Add definitions for DV_CLKI and HDMI clocks, extend support for PLLC2 and some
other clocks.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-08-04 16:12:06 +09:00
Paul Mundt
701ec7a7b0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
	arch/arm/configs/ap4evb_defconfig
	arch/arm/configs/g3evm_defconfig
	arch/arm/configs/g4evm_defconfig

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-08-04 11:56:17 +09:00
Magnus Damm
58c7d9d2e6 ARM: 6276/1: mach-shmobile: remove duplicate NR_IRQS_LEGACY
NR_IRQS_LEGACY is now defined in asm/irq.h,
so drop it in mach/irqs.h.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29 22:32:28 +01:00
Guennadi Liakhovetski
8d3e17bab9 ARM: mach-shmobile: add SCIFA and SCIFB DMA slave definitions for sh7372
SH7372 can use DMA with the SCI serial driver. Add required slave IDs and slave
descriptors.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-31 13:45:00 +09:00
Guennadi Liakhovetski
69bf6f451f ARM: add DMA support to sh7372, enable DMA for SDHI
This adds DMA support for the sh7372 sh-mobile ARM core, using the shdma
dmaengine driver, and uses DMA for the SDHI SD-card controller on this SoC.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-31 13:18:51 +09:00
Magnus Damm
0163acf3c7 ARM: mach-shmobile: sh7377 clock framework V2
This patch is V2 of clock framework tables/code for sh7377.
MSTP support is included for the following hardware blocks:
KEYSC, SCIF, IIC, IRDA, FLCTL, USB, SDHI and UIO.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22 17:23:14 +09:00
Magnus Damm
4f0836b4f9 ARM: mach-shmobile: sh7367 clock framework V2
This patch is V2 of clock framework tables/code for sh7367.
MSTP support is included for the following hardware blocks:
KEYSC, SCIF, IIC, IRDA, FLCTL, VOU, SIU, USB, SDHI and UIO.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22 17:22:57 +09:00
Magnus Damm
83ca5c87cb ARM: mach-shmobile: sh7372 clock fixes
Fixes for the sh7372 clock framework:
 - remove unused #include <linux/platform_device.h>
 - add sh7372 prefix to user modifiable root clocks
 - put modifiable root clock prototypes in header file
 - fix off-by-one id error on VEU MSTP clocks
 - make arrays static

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22 17:22:56 +09:00
Magnus Damm
e370bc22c2 ARM: mach-shmobile: Update VMALLOC_END
Extend VMALLOC_END to the I/O Window at 0xe6000000.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20 12:51:31 +09:00
Magnus Damm
28f0721a79 ARM: mach-shmobile: Set CONSISTENT_DMA_SIZE to 158 MB
This patch sets CONSISTENT_DMA_SIZE to 158 MB
for all SH-Mobile ARM processors.

The DMA area is mapped at 0xf6000000 - 0xffdfffff,
on top of the 256 MB I/O window at 0xe6000000.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20 12:51:24 +09:00
Magnus Damm
495b3cea94 ARM: mach-shmobile: sh7372 clock framework support V2
This patch is V2 of clock framework tables/code for sh7372.
MSTP are included for KEYSC, SCIF, IIC, USB, SDHI and UIO.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20 12:07:29 +09:00
Magnus Damm
e47bb515c5 ARM: mach-shmobile: Use shared clock framework
Teach SH-Mobile ARM how to make use of the shared SH clock
framework. This commit is one atomic switch that dumps the
local hackery and instead links in the shared clock framework
code in drivers/sh. A few local functions are kept in clock.c.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20 12:05:45 +09:00
Magnus Damm
9b7c23adb3 ARM: mach-shmobile: Use 0x2200 as INTCS_VECT_BASE
Change INTCS_VECT_BASE from 0x3400 to 0x2200.

The old value 0x3400 gave the INTCA and INTCS interrupt
conrollers separated spaces, but required ARM support
for more than 512 NR_IRQS which is not in place at this
point.

The value 0x2200 will make some of the INTCA interrupts
make use of empty INTCS areas. This is a bit more error
prone but works fine as a workaround for G3, G3 and AP4.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20 12:00:36 +09:00
Magnus Damm
ff9170aeff ARM: mach-shmobile: add INTCS macros
Add SH-Mobile ARM INTCS macros for the INTCS controller.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-04-07 16:23:56 +09:00
Kuninori Morimoto
b789b3fdcc ARM: mach-shmobile: Add sh7372 pinmux support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-18 12:32:59 +09:00
NISHIMOTO Hiroki
276b4f623c ARM: mach-shmobile: sh7377 and G4EVM pinmux support
Add support for the sh 7377 pinmux using drivers/sh/pfc.c
and some LEDs on G4EVM.

Signed-off-by: NISHIMOTO Hiroki <nishimoto.hiroki@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-15 13:43:37 +09:00
Magnus Damm
7fdda6780a ARM: mach-shmobile: sh7367 and G3EVM pinmux support
Add support for the sh7367 pinmux using drivers/sh/pfc.c
and select serial console pins and some LEDs on G3EVM.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-12 14:10:47 +09:00
Magnus Damm
4ae04acb81 ARM: mach-shmobile: early console support using earlyprintk
Add support for early console to the SH-Mobile boards.

Simply perform an early platform probe for "earlyprintk"
to trigger the early serial console code in sh-sci.c.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-09 10:34:12 +09:00