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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
Merge "Renesas ARM Based SoC da9063/da9210 Regulator Quirk for v4.1" from Simon Horman:
The r8a7790/lager and r8a7791/koelsch development boards have da9063 and
da9210 regulators. Both regulators have their interrupt request lines
tied to the same interrupt pin (IRQ2) on the SoC.
After cold boot or da9063-induced restart, both the da9063 and da9210
seem to assert their interrupt request lines. Hence as soon as one
driver requests this irq, it gets stuck in an interrupt storm, as it
only manages to deassert its own interrupt request line, and the other
driver hasn't installed an interrupt handler yet.
To handle this, install a quirk that masks the interrupts in both the
da9063 and da9210. This quirk has to run after the i2c master driver
has been initialized, but before the i2c slave drivers are initialized.
As it depends on i2c, select I2C if one of the affected platforms is
enabled in the kernel config.
* tag 'renesas-da9063-da9210-quirk-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: lager: Add da9063 PMIC device node for system restart
ARM: shmobile: lager dts: Add da9210 regulator interrupt
ARM: shmobile: koelsch: Add da9063 PMIC device node for system restart
ARM: shmobile: koelsch dts: Add da9210 regulator interrupt
ARM: shmobile: R-Car Gen2: Add da9063/da9210 regulator quirk
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shmobile only uses gic_arch_extn.irq_set_wake to prevent the GIC
from returning -ENXIO when receiving a wake-up configuration request.
It is a lot simpler to tell the irq layer that we don't need any
configuration by using the IRQCHIP_SKIP_SET_WAKE, thanks to the
new gic_set_irqchip_flags function.
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1426088737-15817-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Remove the restart handling hack from the r8a7740 generic multiplatform
case.
Restart on DT-based r8a7740 platforms is now handled through the
R-Mobile reset driver.
This reverts commit 1174c712afa2779f ("ARM: shmobile: r8a7740: Add
restart callback").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Since commit e042681894b62d60 ("ARM: shmobile: r8a7790: Remove legacy
code"), all R-Car Gen2 SoCs are supported by multiplatform kernels only.
As CONFIG_COMMON_CLK is always set for multiplatform kernels, we can
remove related #ifdefs in code specific to R-Car Gen2 SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/multiplatform
Pull "Renesas ARM Based SoC r8a7778 CCF and Multiplatform Updates
for v4.1" from Simon Horman:
* Add CCF and them multiplatform support to r8a7778 SoC and its
bockw board.
* tag 'renesas-r8a7778-ccf-and-multiplatform-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (21 commits)
ARM: shmobile: r8a7778: enable multiplatform target
ARM: shmobile: bockw: add sound to DT
ARM: shmobile: r8a7778: add sound to DT
ARM: shmobile: bockw: add devices hooked up to i2c0 to DT
DT: i2c: add trivial binding for OKI ML86V7667 video decoder
ARM: shmobile: r8a7778: common clock framework CPG driver
ARM: shmobile: bockw dts: set extal clock frequency
ARM: shmobile: bockw dts: Move Ethernet node to BSC
ARM: shmobile: r8a7778 dtsi: Add Bus State Controller node
ARM: shmobile: bockw: add USB, VIN pin descriptions to DT
ARM: shmobile: r8a7778: add internal ethernet controller to DT
ARM: shmobile: r8a7778: add MSTP clock assignments to DT
ARM: shmobile: r8a7778: implement SoC and board CCF support
ARM: shmobile: r8a7778: Common clock framework DT description
ARM: shmobile: r8a7778: add CPG register bits header
ARM: shmobile: r8a7778: synchronize dts with reference platform
drivers: bus: Add Simple Power-Managed Bus Driver
drivers: bus: Add Renesas Bus State Controller (BSC) DT Bindings
drivers: bus: Add Simple Power-Managed Bus DT Bindings
drivers: bus: Sort Makefile entries alphabetically
...
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The r8a7790/lager and r8a7791/koelsch development boards have da9063 and
da9210 regulators. Both regulators have their interrupt request lines
tied to the same interrupt pin (IRQ2) on the SoC.
After cold boot or da9063-induced restart, both the da9063 and da9210
seem to assert their interrupt request lines. Hence as soon as one
driver requests this irq, it gets stuck in an interrupt storm, as it
only manages to deassert its own interrupt request line, and the other
driver hasn't installed an interrupt handler yet.
To handle this, install a quirk that masks the interrupts in both the
da9063 and da9210. This quirk has to run after the i2c master driver
has been initialized, but before the i2c slave drivers are initialized.
As it depends on i2c, select I2C if one of the affected platforms is
enabled in the kernel config.
On koelsch, the following happens:
- Cold boot or reboot using the da9063 restart handler:
IRQ2 is asserted, installing da9063/da9210 regulator quirk
...
i2c i2c-6: regulator_quirk_notify: 1, IRQC_MONITOR = 0x3fb
i2c 6-0058: regulator_quirk_notify: 1, IRQC_MONITOR = 0x3fb
i2c 6-0058: Detected da9063
i2c 6-0058: Masking da9063 interrupt sources
i2c 6-0068: regulator_quirk_notify: 1, IRQC_MONITOR = 0x3fb
i2c 6-0068: Detected da9210
i2c 6-0068: Masking da9210 interrupt sources
i2c 6-0068: IRQ2 is not asserted, removing quirk
- Warm boot (reset button):
rcar_gen2_regulator_quirk: IRQ2 is not asserted, not installing quirk
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Current sh_mobile_sdhi's platform data is set via sh_mobile_sdhi_info
and it is just copied to tmio_mmc_data.
Now, tmio mmc platform data is specified via tmio_mmc_data.
This patch replace sh_mobile_sdhi_info to tmio_mmc_data
struct sh_mobile_sdhi_info { -> struct tmio_mmc_data {
int dma_slave_tx; -> void *chan_priv_tx;
int dma_slave_rx; -> void *chan_priv_rx;
unsigned long tmio_flags; -> unsigned long flags;
unsigned long tmio_caps; -> unsigned long capabilities;
unsigned long tmio_caps2; -> unsigned long capabilities2;
u32 tmio_ocr_mask; -> u32 ocr_mask;
unsigned int cd_gpio; -> unsigned int cd_gpio;
}; unsigned int hclk;
void (*set_pwr)(...);
void (*set_clk_div)(...);
};
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/multiplatform
Pull "Renesas ARM Based SoC sh7372 SoC Removal Updates for v4.1" from Simon Horman:
* Remove the sh7372 SoC and its mackerel board
* tag 'renesas-sh7372-soc-removal-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
Documentation: Remove ZBOOT MMC/SDHI utility and docs
ARM: shmobile: sh7372 dtsi: Remove Legacy DTSI file
ARM: shmobile: sh7372: Remove DT binding documentation
ARM: shmobile: sh7372: Remove Legacy C SoC code
ARM: shmobile: sh7372: Remove ZBOOT MMC/SDHI support
ARM: shmobile: mackerel: Remove from MAINTAINERS
ARM: shmobile: mackerel: Remove defconfig
ARM: shmobile: mackerel: Remove mach-type entry
ARM: shmobile: mackerel: Remove DT binding documentation
ARM: shmobile: mackerel dts: Remove Legacy DTS file
ARM: shmobile: mackerel: Remove Legacy C board code
ARM: shmobile: mackerel: Remove ZBOOT code
[arnd: The sh7372 platform is rather dated and is believed to
have no active users on modern kernels. It stands in the way
of converting all of mach-shmobile to be multiplatform capable,
as adding pinctrl and common-clock support for it would be more
work than it's worth. As always, should any legitimate upstream
users show up in the future, we will revert this removal]
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Adds config option and enables DTB building.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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All r8a73a4 boards are now used with multiplatform kernels only. We can
remove all the unused r8a73a4 legacy device and clock registration code.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Remove the restart handling hack from the sh73a0 generic multiplatform
case.
Restart on DT-based sh73a0 platforms is now handled through the
R-Mobile reset driver.
This basically reverts commit cad900819fba0176 ("ARM: shmobile: sh73a0:
Add restart callback").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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"ARM: shmobile: kzm9g-reference: Remove board C code and DT file"
removed the last user of sh73a0_add_standard_devices_dt(). Hence remove
this function.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Now that the sh73a0 generic multiplatform case has the same feature set
as the kzm9g DT reference board code, we get rid of the latter.
DT reference code in the future shall make use of the sh73a0
multiplatform support code with the generic SoC machine vector.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Enable sh73a0 Multiplatform support for the generic sh73a0
machine vector. No board support is enabled, and the board
code for KZM9G DT Reference is left by itself.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Add a generic sh73a0 machine setup callback for the upcoming
sh73a0 multiplatform case. Cache needs to be configured, and
legacy clocks must be omitted.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Allow R-Car Gen2 platforms to boot with CMA enabled
and HIGHMEM disabled. This patch adds code to check
if the R-Car Gen2 specific memory reservation window
is included in the kernel memory range or not. When
HIGHMEM is disabled the R-Car Gen2 reservation area is
outside the kernel memory range and in such case the
memory reservation is simply skipped over.
Without this patch the kernel boot hangs when CMA is
enabled and HIGHMEM is disabled on the r8a7791 Koelsch
hardware platform:
WARNING: CPU: 1 PID: 1 at mm/cma.c:113 cma_init_reserved_areas+0x88/0x1d4()
...
WARNING: CPU: 1 PID: 1 at mm/cma.c:121 cma_init_reserved_areas+0xf8/0x1d4()
...
Unable to handle kernel NULL pointer dereference at virtual address 00000160
pgd = c0003000
[00000160] *pgd=80000040004003, *pmd=00000000
Internal error: Oops: 206 [#1] SMP ARM
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W
3.19.0-rc4-koelsch-01450-g7f9b6075ce12c3ea-dirty #735
Hardware name: Generic R8A7791 (Flattened Device Tree)
task: edc553c0 ti: edc56000 task.ti: edc56000
PC is at set_pfnblock_flags_mask+0x54/0xa0
LR is at 0x440
In the current shmobile_defconfig HIGHMEM is enabled
while CMA is disabled, so to trigger this the kernel
configuration for both CMA and HIGHMEM needs to be
adjusted.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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By default only the non-boot CPUs can be hotplugged if the
smp_operations structure doesn't have the cpu_disable function
pointer set. r8a7779_cpu_disable() implements the same logic,
only non-boot CPUs can be hotplugged, so it's redundant to
override the default behavior.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Convert ARCH_SHMOBILE_LEGACY to make use of <debug/uncompress.h>
and remove the now unused <mach/uncompress.h>.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Move over ARCH_SHMOBILE_LEGACY to use the default legacy ARM
implementations of __clk_get() and __clk_put() in <asm/clkdev.h>
by deselecting HAVE_MACH_CLKDEV. This has the nice side effect
that <mach/clkdev.h> is no longer used and can be removed.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The file <mach/system.h> is no longer included from anywhere so
clean up the code by removing mach-shmobile/include/mach/system.h
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Remove support for the legacy Cortex-A8 based sh7372 SoC.
The Linux kernel still lacks DT bindings for the sh7372 INTC
interrupt controller so DT multiplatform support is not possibile.
Also, the sh7372 SoC never went into mass production anyway so to
aid migration to DT multiplatform simply get rid of sh7372 support.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Remove the sh7372 implementation and the shared ZBOOT MMC
and SDHI support code from the compressed ARM boot loader.
With this in place it is no longer possible to boot any
self-contained kernel for sh7372 directly from Mask ROM
via SDHI and MMCIF hardware.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Remove legacy C code for the sh7372 Mackerel board. There is no
DT multiplatform implementation available for the sh7372 SoC so
simply phase out the board and SoC code support.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Remove ZBOOT support code for Mackerel. With this patch in place
it is no longer possible to boot a self-contained kernel directly
from the reset vector. ZBOOT is still supported on kzm9g.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Disables the legacy clock framework and passes the mode bits to the CPG
driver if CCF is enabled.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This removes the remains of the legacy ape6evm platform.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Now that the r8a73a4 generic multiplatform case has the same features as the
APE6EVM DT reference board code, we get rid of the latter. DT reference
code in the future shall make use of the r8a73a4 multiplatform support code
with the generic SoC machine vector.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[geert: Update Documentation/devicetree/bindings/arm/shmobile.txt]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Disables r8a73a4_clock_init() if CCF is enabled.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Documentation says the last register is at 0x184 (CAxCPUCMCR), so use
proper length. Current APMU code accesses CAxCPUnCR which is currently
outside of the remapped area.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Documentation says the last register is at 0x184 (CAxCPUCMCR), so use
proper length. Current APMU code accesses CAxCPUnCR which is currently
outside of the remapped area.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The definition
static const char *axxia_dt_match[] __initconst = {
...
defines a changable array of constant strings. That is you must not do:
*axxia_dt_match[0] = 'k';
but
axxia_dt_match[0] = "different string";
is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.
As the struct machine_desc member dt_compat is declared as
const char *const *dt_compat;
making the arrays const is the better alternative over changing all
annotations to __initdata.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"These are changes for drivers that are intimately tied to some SoC and
for some reason could not get merged through the respective subsystem
maintainer tree.
This time around, much of this is for at91, with the bulk of it being
syscon and udc drivers.
Also, there's:
- coupled cpuidle support for Samsung Exynos4210
- Renesas 73A0 common-clk work
- of/platform changes to tear down DMA mappings on device destruction
- a few updates to the TI Keystone knav code"
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
cpuidle: exynos: add coupled cpuidle support for exynos4210
ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary
soc: ti: knav_qmss_queue: change knav_range_setup_acc_irq to static
soc: ti: knav_qmss_queue: makefile tweak to build as dynamic module
pcmcia: at91_cf: depend on !ARCH_MULTIPLATFORM
soc: ti: knav_qmss_queue: export API calls for use by user driver
of/platform: teardown DMA mappings on device destruction
usb: gadget: at91_udc: Allocate udc instance
usb: gadget: at91_udc: Update DT binding documentation
usb: gadget: at91_udc: Rework for multi-platform kernel support
usb: gadget: at91_udc: Simplify probe and remove functions
usb: gadget: at91_udc: Remove non-DT handling code
usb: gadget: at91_udc: Document DT clocks and clock-names property
usb: gadget: at91_udc: Drop uclk clock
usb: gadget: at91_udc: Fix clock names
mfd: syscon: Add Atmel SMC binding doc
mfd: syscon: Add atmel-smc registers definition
mfd: syscon: Add Atmel Matrix bus DT binding documentation
mfd: syscon: Add atmel-matrix registers definition
clk: shmobile: fix sparse NULL pointer warning
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson:
"New and updated SoC support. Also included are some cleanups where
the platform maintainers hadn't separated cleanups from new developent
in separate branches.
Some of the larger things worth pointing out:
- A large set of changes from Alexandre Belloni and Nicolas Ferre
preparing at91 platforms for multiplatform and cleaning up quite a
bit in the process.
- Removal of CSR's "Marco" SoC platform that never made it out to the
market. We love seeing these since it means the vendor published
support before product was out, which is exactly what we want!
New platforms this release are:
- Conexant Digicolor (CX92755 SoC)
- Hisilicon HiP01 SoC
- CSR/sirf Atlas7 SoC
- ST STiH418 SoC
- Common code changes for Nvidia Tegra132 (64-bit SoC)
We're seeing more and more platforms having a harder time labelling
changes as cleanups vs new development -- which is a good sign that
we've come quite far on the cleanup effort. So over time we might
start combining the cleanup and new-development branches more"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (124 commits)
ARM: at91/trivial: unify functions and machine names
ARM: at91: remove at91_dt_initialize and machine init_early()
ARM: at91: change board files into SoC files
ARM: at91: remove at91_boot_soc
ARM: at91: move alternative initial mapping to board-dt-sama5.c
ARM: at91: merge all SOC_AT91SAM9xxx
ARM: at91: at91rm9200: set idle and restart from rm9200_dt_device_init()
ARM: digicolor: select syscon and timer
ARM: zynq: Simplify SLCR initialization
ARM: zynq: PM: Fixed simple typo.
ARM: zynq: Setup default gpio number for Xilinx Zynq
ARM: digicolor: add low level debug support
ARM: initial support for Conexant Digicolor CX92755 SoC
ARM: OMAP2+: Add dm816x hwmod support
ARM: OMAP2+: Add clock domain support for dm816x
ARM: OMAP2+: Add board-generic.c entry for ti81xx
ARM: at91: pm: remove warning to remove SOC_AT91SAM9263 usage
ARM: at91: remove unused mach/system_rev.h
ARM: at91: stop using HAVE_AT91_DBGUx
ARM: at91: fix ordering of SRAM and PM initialization
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This is a good healthy set of various code removals. Total net delta
is 8100 lines removed.
Among the larger cleanups are:
- Removal of old Samsung S3C DMA infrastructure by Arnd
- Removal of the non-DT version of the 'lager' board by Magnus Damm
- General stale code removal on OMAP and Davinci by Rickard Strandqvist
- Removal of non-DT support on am3517 platforms by Tony Lindgren
... plus several other cleanups of various platforms across the board"
* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (47 commits)
ARM: sirf: drop redundant function and marco declaration
arm: omap: specify PMUs are for ARMv7 CPUs
arm: shmobile: specify PMUs are for ARMv7 CPUs
arm: iop: specify PMUs are for XScale CPUs
arm: pxa: specify PMUs are for XScale CPUs
arm: realview: specify PMU types
ARM: SAMSUNG: remove unused DMA infrastructure
ARM: OMAP3: Add back Kconfig option MACH_OMAP3517EVM for ASoC
ARM: davinci: Remove CDCE949 driver
ARM: at91: remove useless at91rm9200_set_type()
ARM: at91: remove useless at91rm9200_dt_initialize()
ARM: at91: move debug-macro.S into the common space
ARM: at91: remove useless at91_sysirq_mask_rtx
ARM: at91: remove useless config MACH_AT91SAM9_DT
ARM: at91: remove useless config MACH_AT91RM9200_DT
ARM: at91: remove unused mach/memory.h
ARM: at91: remove useless header file includes
ARM: at91: remove unneeded header file
rtc: at91/Kconfig: remove useless options
ARM: at91/Documentation: add a README for Atmel SoCs
...
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Now that we can specify which PMU variant we're likely to deal with, do
so in the shmobile board code. This will allow us to split the ARMv6,
ARMv7, and XScale PMU drivers
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Third Round of Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:
* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4
* tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
Signed-off-by: Olof Johansson <olof@lixom.net>
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As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), the Lager legacy board support is known to be broken.
The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.
To fix this issue specific to non-multiplatform r8a7790 and Lager:
1) Instantiate the GIC from platform board code and also
2) Skip over the DT arch timer as well as
3) Force delay setup based on DT CPU frequency
With these 3 fixes in place interrupts on Lager are now unbroken.
Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), the APE6EVM legacy board support is known to be broken.
The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.
To fix this issue specific to non-muliplatform r8a73a4 and APE6EVM:
1) Instantiate the GIC from platform board code and also
2) Skip over the DT arch timer as well as
3) Force delay setup based on DT CPU frequency
With these 3 fixes in place interrupts on APE6EVM are now unbroken.
Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Second Round of Renesas ARM Based SoC Fixes for v3.19" from Simon
Horman:
* Instantiate GIC from C board code in legacy builds on r8a7778 and r8a7779
* tag 'renesas-soc-fixes2-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7779: Instantiate GIC from C board code in legacy builds
ARM: shmobile: r8a7778: Instantiate GIC from C board code in legacy builds
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:
Renesas ARM Based SoC Fixes for v3.19
This pull request is based on the last round of SoC updates for v3.19,
Fourth Round of Renesas ARM Based SoC Updates for v3.19, tagged as
renesas-soc3-for-v3.19, merged into your next/soc branch and included in
v3.19-rc1.
- ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
Set .control_parent for all irqpin instances for sh73a0 SoC when booting
using legacy C.
- ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
This fixes a long standing problem which has been present since
the sh73a0 SoC started using the INTC External IRQ pin driver.
The patch that introduced the problem is 341eb5465f67437a ("ARM:
shmobile: INTC External IRQ pin driver on sh73a0") which was included
in v3.10.
* tag 'renesas-soc-fixes-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
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As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), Marzen legacy hangs during boot with:
Image Name: 'Linux-3.19.0-rc4'
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3445880 Bytes = 3.3 MiB
Load Address: 60008000
Entry Point: 60008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Enabling DEBUG_LL does not seem to change the situation, however this
patch by itself fixes this issue and re-enables normal boot.
This issue happens because the IRQ numbers of the GIC are now virtual,
and no longer match the hardcoded hardware IRQ numbers in the platform
board code.
To fix this, instantiate the GIC from platform board code when compiling
a legacy kernel, like is done for the sh73a0, r8a7740 and r8a7778 legacy code.
Follows same style as the r8a7740 legacy GIC fix by Geert Uytterhoeven,
thanks to him for the initial work.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), Bock-W legacy hangs during boot with:
Unable to handle kernel paging request at virtual address cf86a128
pgd = c0004000
[cf86a128] *pgd=6f80041e(bad)
Internal error: Oops: 8000000d [#1] SMP ARM
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-rc4 #1
Hardware name: bockw
task: cf823b40 ti: cf824000 task.ti: cf824000
PC is at 0xcf86a128
LR is at request_threaded_irq+0xbc/0x124
This happens because the IRQ numbers of the GIC are now virtual, and no
longer match the hardcoded hardware IRQ numbers in the platform board
code.
To fix this, instantiate the GIC from platform board code when compiling
a legacy kernel, like is done for the sh73a0 and r8a7740 legacy code.
Follows same style as the r8a7740 legacy GIC fix by Geert Uytterhoeven,
thanks to him for the initial work.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Add a special case for PM domains containing a memory-controller.
Such a PM domain must not be turned off if memory is in use.
On sh73a0 PM domains A4BC0 and A4BC1 each contain an SDRAM Bus State
Controller (SBSC). On r8a73a4 PM domain A3BC contains two DDR Bus
Controllers (DBSC). In both cases, there are no other devices in these
PM domains, so they were eligible for power down, crashing the system.
On r8a7740 the DDR3 Bus State Controller (DBSC3) is located in A4S,
whose child domain A3SM contains the CPU core. Hence A4S is never turned
off, and no crash happened.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Make adding special PM domains to an array, and looking them up
later, more generic, so it can be used for all special hardware blocks.
The type of PM domain is also stored, so rmobile_setup_pm_domain() can
use a switch() statement instead of a chain of if/else statements.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Consolidate the identical rmobile_pd_suspend_*() routines that just
return -EBUSY to prevent a PM domain from being powered down into a
single rmobile_pd_suspend_busy().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Populate the PM domains from DT, and provide support to hook up devices
to their respective PM domain.
The always-on power area (e.g. C5 on r8a7740) is created as a PM domain
without software control, to allow Run-Time management of module clocks
for hardware blocks inside this area.
Special cases like PM domains containing CPUs, the console device, or
Coresight-ETM, are handled by scanning the DT topology.
As long as the ARM debug/perf code doesn't use resource management with
runtime PM support, the power area containing Coresight-ETM (e.g. D4 on
r8a7740) must be kept powered to avoid a crash during resume from s2ram
(dbg_cpu_pm_notify() calls reset_ctrl_regs() unconditionally, causing an
undefined instruction oops).
Initialization is done from core_initcall(), as the
"renesas,intc-irqpin" driver uses postcore_initcall().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Replace the hardcoded addresses for accessing the SYSC PM domain
registers by register offsets, relative to the SYSC base address stored
in struct rmobile_pm_domain.
In the future, the SYSC base address will come from DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Use the just introduced genpd attach/detach callbacks to register the
devices' module clocks, instead of doing it directly, to make it
DT-proof.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The sh73a0 INTC can't mask interrupts properly most likely due to a
hardware bug. Set the .control_parent flag to delegate masking to the
parent interrupt controller, like was already done for irqpin1.
Without this, accessing the three-axis digital accelerometer ADXL345
on kzm9g through /dev/input/event1 causes an interrupt storm, which
requires a power-cycle to recover from.
This was inspired by a patch for arch/arm/boot/dts/sh73a0.dtsi from
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 341eb5465f67437a ("ARM: shmobile: INTC External IRQ pin driver on sh73a0")
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Enable r8a73a4 Multiplatform support for the generic r8a73a4
machine vector.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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