A parallel PCI implementation ("pcie") is added with features for PCIe.
In particular, message-signaled interrupts (MSI) are supported, which
are essential to the use of any non-trivial PCIe device.
The NS16550 UART driver is modified to use pcie.
pcie is a complete replacement for the old PCI support ("pci"). It is
smaller, by an order of magnitude, and cleaner. Both pci and pcie can
(and do) coexist in the same builds, but the intent is to rework any
existing drivers that depend on pci and ultimately remove pci entirely.
This patch is large, but things in mirror are smaller than they appear.
Most of the modified files are configuration-related, and are changed
only slightly to accommodate the modified UART driver.
Deficiencies:
64-bit support is minimal. The code works fine with 64-bit capable
devices, but will not cooperate with MMIO regions (or MSI targets) that
have high bits set. This is not needed on any current boards, and is
unlikely to be needed in the future. Only superficial changes would
be required if we change our minds.
The method specifying PCI endpoints in devicetree is somewhat kludgey.
The "right" way would be to hang PCI devices off a topological tree;
while this would be more aesthetically pleasing, I don't think it's
worth the effort, given our non-standard use of devicetree.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
The initial support of iotdk which is a board based on Synopsys
ARC IoT SoC.
In this commit, it includes
* processor support
* UART driver
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
There are different interrupt numbers for R22 v R23. Before this was
being handled via using Kconfig symbol CONFIG_BOARD_EM_STARTERKIT_R23 in
emsk_dt.h. Since we want to remove use of Kconfig in dts we handle this
via different dtsi files and having the proper one included by the
proper board revision dts file.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Towards removing Kconfig from DTS we need to move setting of the sizes
of ICCM/DCCM into the SoC specific DTS files and out of emsk_dt.h
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Newer DTC now warns about mismatch between the reg and unit-address.
Most of these cases are due to case not matching, so fix thoses so
everything is lowercase.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
patch adds the device binding for qmsi watchdog and device node
for socs which are using wdt qmsi driver.
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Convert over arc based boards to use device tree instead of board.h to
describe buttons & LEDs. There are a few boards that the button gpio
flags need validation.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Makes the designware spi driver consistent with other spi drivers by
selecting HAS_DTS_SPI in the driver. This required adding spi nodes and
dts fixups to several arc and x86 socs, as well as enabling those nodes
in associated boards.
Also refactors the driver to use the base address, interrupt number, and
interrupt priority from dts.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
We get several warnings of the form:
Warning (unit_address_vs_reg): /cpus/arcv2-intc@0:
node has a unit name, but no reg property
Fix by removing the unit address from the nodes. Some cases we had a
reg property and a unit address for such interrupt controllers, in those
cases remove both the reg & unit address in the node name.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Now that we have a common DT_SIZE_K macro use it instead of defining
__SIZE_K eveywhere. We also have DT_SIZE_M, so use that in a few
places as well.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
ARC only supports only 2 priority levels so make sure
the IRQ priority is not greather than 1.
The test was passing in previous build because the ASSERT was
not enabled.
Fixes Issue #8099
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Fix the qmsi uart driver and relevant SoCs accordingly.
Also: using config for irq everwhere relevantly and not an hardcoded
value in the driver.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
* add gpio, i2c, spi definitions
* optimize and bug fix the dts.fixup
* optimize and bug fix the em_starterkit related definitions
in dts folder
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
Add initial device tree support for the em{7,9,11}d SoC and associated
em_starterkit boards. The device tree at this point specifies cpu core,
memory, interrupt controller, uart's and i2c controllers.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This will generate the necessary configuration for the 2 i2c controllers
on quark_se_c1000_ss.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
As flash address changes between different boards of same Soc,
it is derived from .dts file instead of hard coding in .dtsi.
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
Wayne Ren