Commit Graph

18 Commits

Author SHA1 Message Date
Charles E. Youse 3038209695 drivers/timer/hpet.c: migrate to devicetree
This driver was still using CONFIG_* values to determine its address,
IRQ, etc. Add a binding for an "intel,hpet" device and migrate this
driver to devicetree.

Fixes: #18657

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
2019-09-17 22:37:09 +08:00
Andrew Boie c3b3aafaec x86: generate page tables at runtime
Removes very complex boot-time generation of page tables
with a much simpler runtime generation of them at bootup.

For those x86 boards that enable the MMU in the defconfig,
set the number of page pool pages appropriately.

The MMU_RUNTIME_* flags have been removed. They were an
artifact of the old page table generation and did not
correspond to any hardware state.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-08-07 12:50:53 -07:00
Charles E. Youse 7f0ab527e3 arch/x86: move 32-bit linker script to ia32/ directory
No functional changes. All references in soc/ are updated.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
2019-07-02 19:30:00 -04:00
Anas Nashif a2fd7d70ec cleanup: include/: move misc/util.h to sys/util.h
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif d1b2718687 cleanup: include/: move uart.h to drivers/uart.h
move uart.h to drivers/uart.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Charles E. Youse 50c71e6043 arch/x86: CONFIG_BOOTLOADER_UNKNOWN renamed to CONFIG_X86_MULTIBOOT
The only use of the BOOTLOADER_UNKNOWN config option is on x86, where
it controls whether a multiboot header is embedded in the output.
This patch renames the option to be more descriptive, and makes it
an x86-specific option, rather than a Zephyr top-level option.

This also enables X86_MULTIBOOT by default, since the header only
occupies 12-16 bytes of memory and is (almost always) harmless.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
2019-05-08 14:49:19 -04:00
Charles E. Youse e039053546 uart/ns16550, drivers/pcie: add PCI(e) support
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>
2019-04-17 10:50:05 -07:00
Anas Nashif 3ae52624ff license: cleanup: add SPDX Apache-2.0 license identifier
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier.  Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.

By default all files without license information are under the default
license of Zephyr, which is Apache version 2.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-04-07 08:45:22 -04:00
Ulf Magnusson 53376394b7 kconfig: Remove blank lines at the beginning/end of files
Maybe this is some "just in case" thing that got copied around. There's
no need to have a blank line at the beginning or end of Kconfig files.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-03-13 07:29:42 -05:00
Daniel Leung 603f068690 uart/ns16550: Use DT_ prefix for remaining device configs
Previous rename from CONFIG_* to DT_* left a few remaining
CONFIG_*. So rename them manually now.

Fix #13753

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2019-02-26 20:06:26 -06:00
Andrew Boie 2d9bbdf5f3 x86: remove support for non-PAE page tables
PAE tables introduce the NX bit which is very desirable
from a security perspetive, back in 1995.

PAE tables are larger, but we are not targeting x86 memory
protection for RAM constrained devices.

Remove the old style 32-bit tables to make the x86 port
easier to maintain.

Renamed some verbosely named data structures, and fixed
incorrect number of entries for the page directory
pointer table.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-02-05 20:51:21 -08:00
Andrew Boie 1d720f504b x86: atom: do not select application memory
This should never be selected at the SOC level.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-11-28 15:33:11 -08:00
Ulf Magnusson 4638652214 Kconfig: Use 'default' instead of 'def_bool' in Kconfig.defconfig files
This can help find unused symbols. Those end up without a type if
'default' is used instead of 'def_bool', which generates a warning.

Search for "Kconfig.defconfig" in
https://docs.zephyrproject.org/latest/application/kconfig-tips.html for
a longer explanation.

Keep the 'def_bool' for the following symbols, which seem to be
deliberately defined only in Kconfig.defconfig files:

 - ALTERA_AVALON_I2C
 - ALTERA_AVALON_MSGDMA
 - ALTERA_AVALON_PIO
 - ALTERA_AVALON_QSPI
 - ALTERA_AVALON_SYSID
 - CLOCK_CONTROL_IMX_CCM
 - CPU_EM4_DMIPS
 - CPU_EM4_FPUDA
 - CPU_EM4_FPUS
 - FP_FPU_DA
 - I2C_GECKO

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-11-13 16:04:01 -05:00
Andrzej Głąbek 20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Andrzej Głąbek f39ba7230d dts_fixups: Update labels generated from DTS with DT_ prefix
All labels containing "_<8-hex-digits>_" or "16550_<3or6-hex-digits>_"
in their names, assumed to be generated by the extracting script,
are updated with the DT_ prefix, to reflect the recent changes made
to the script.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Sebastian Bøe 8eb734cd82 DT: Rename from dts.fixup to dts_fixup.h
The Zephyr configuration system uses many different files in many
different formats. It makes it a lot easier for users to understand
what these files do if when we use the correct file extensions.

To this end we rename the dts.fixup files to the correct file
extension '.h'.

This is a breaking change for out-of-tree fixup files. Such files will
be detected and given an appropriate error message.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-10-08 11:38:56 -04:00
Kumar Gala e4a96ccbc4 dts: Cleanup warnings associated with unit_address_format and leading 0s
We get several warnings of the form:

	Warning (unit_address_format): /soc/uart@000003f8:
	unit name should not have leading 0s

Fix these by remove the leading 0s.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-09-18 10:43:58 -07:00
Anas Nashif cff0005a87 x86: move soc/cpu to top-level under soc/
Move the SoC outside of the architecture tree and put them at the same
level as boards and architectures allowing both SoCs and boards to be
maintained outside the tree.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-09-13 00:56:48 -04:00