Lokesh Vutla [Fri, 2 Nov 2018 14:21:03 +0000 (19:51 +0530)]
armv7R: K3: am654: Enable MPU regions
Enable MPU regions for AM654 evm:
- Region0: 0x00000000 - 0xFFFFFFFF: Device memory, not executable
- Region1: 0x41c00000 - 0x42400000: Normal, executable, WB, Write alloc
- Region2: 0x80000000 - 0xFFFFFFFF: Normal, executable, WB, Write alloc
- region3-15: Disabled
With this dcache can be enabled either in SPL or U-Boot.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Lokesh Vutla [Fri, 2 Nov 2018 14:21:02 +0000 (19:51 +0530)]
ram: Introduce K3 AM654 DDR Sub System driver
K3 based AM654 devices has DDR memory subsystem that comprises
Synopys DDR controller, Synopsis DDR phy and wrapper logic to
intergrate these blocks into the device. This DDR subsystem
provides an interface to external SDRAM devices. Adding support
for the initialization of the external SDRAM devices by
configuring the DDRSS registers and using the buitin PHY
routines.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Schuyler Patton <spatton@ti.com>
Signed-off-by: James Doublesin <doublesin@ti.com>
Patrick Delaunay [Mon, 29 Oct 2018 14:31:56 +0000 (15:31 +0100)]
i2c: stm32f7: change setup struct to const
Change static array to const when it is useful to save memory
(move stm32f7_setup=0x18 from .data to .rodata section)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Patrick Delaunay [Mon, 29 Oct 2018 14:31:55 +0000 (15:31 +0100)]
i2c: stm32f7: cosmetic: clean the driver
Solve alignments issues in the driver to avoid
checkpatch error.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Adam Ford [Sun, 28 Oct 2018 13:49:57 +0000 (08:49 -0500)]
ARM: am3517_evm: Remove SPL_OF_CONTROL and OF_PLATDATA
After the recomendation, some testing shows like these are unnecessary.
Suggested-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Adam Ford [Sun, 28 Oct 2018 13:49:56 +0000 (08:49 -0500)]
ARM: omap3_logic: Remove SPL_OF_CONTROL and OF_PLATDATA
After the recomendation, some testing shows like these are unnecessary.
Suggested-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Klaus Goger [Thu, 26 Apr 2018 18:18:10 +0000 (20:18 +0200)]
arm: Make arch specific memcpy thumb-safe.
The current arch implementation of memcpy cannot be called
from thumb code, because it does not use bx instructions on return.
This patch addresses that. Note, that this patch does not touch
the hot loop of memcpy, so performance is not affected.
Tested on MXS (arm926ejs) with and without thumb-mode enabled.
Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Patrice Chotard [Wed, 24 Oct 2018 12:10:23 +0000 (14:10 +0200)]
test/py: test pinmux command
Add pinmux test which test the following commands:
- pinmux list
- pinmux dev
- pinmux status
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Mark some tests as sandbox-centric]
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Patrice Chotard [Wed, 24 Oct 2018 12:10:22 +0000 (14:10 +0200)]
pinctrl: sandbox: Add get_pin_muxing ops support
Add get_pin_mux ops support to display the pin muxing
description of the sandbox_pins[]
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:21 +0000 (14:10 +0200)]
gpio: stm32f7: Add ops get_function
This patch adds gpio get_function ops support.
This function reports the state of a gpio.
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Patrice Chotard [Wed, 24 Oct 2018 12:10:20 +0000 (14:10 +0200)]
pinctrl: stm32: Add get_pin_muxing() ops
Add get_pin_muxing() ops to obtain the pin muxing description
a given pin index.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:19 +0000 (14:10 +0200)]
pinctrl: stm32: Add get_pin_name() ops
Add get_pin_name ops to obtain a pin name given a
pin index of a specified pin-controller.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:18 +0000 (14:10 +0200)]
pinctrl: stm32: Add get_pins_count() ops
Add get_pins_count ops to obtain the number of pins
owns by a pin-controller.
On STM32 SoCs bindings, each pin-controller owns
several gpio banks. Each GPIO bank can own up to 16 pins.
To obtain the total pins count, walk through each sub-nodes
(ie GPIO banks) and sum each GPIO banks pins number. For that
in probe() we build a list with each GPIO device reference found.
This list will also be used with future get_pin_muxing and get_pin_name
ops to speed up and optimize walk through all GPIO banks.
As this code is common to all STM32 SoCs, this code is put
under SPL_BUILD compilation flag to avoid to increase SPL code size
for STM32F7 which is limited to 32Ko.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:17 +0000 (14:10 +0200)]
cmd: pinmux: Add pinmux command
pinmux command allows to :
- list all pin-controllers available on platforms
- select a pin-controller
- display the muxing of all pins of the current pin-controller
or all pin-controllers depending of given options
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
cmd: pinmux: Fix pinmux command
if "pinmux status" command is used without having
set dev using "pinmux dev", print pinmux usage
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:16 +0000 (14:10 +0200)]
dm: uclass: Add uclass_foreach_dev_probe
Add uclass_foreach_dev_probe() which iterates through
devices of a given uclass. Devices are probed if necessary
and are ready to use.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:15 +0000 (14:10 +0200)]
dm: uclass: Add uclass_next_device_err() to return a valid device
Similarly to uclass_first_device_err(), add uclass_next_device_err()
which returns an error if there are no next devices in that uclass.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:14 +0000 (14:10 +0200)]
dm: pinctrl: Add pinctrl_get_pin_name and pinctrl_get_pins_count
Add pinctrl_get_pin_name() and pinctrl_get_pins_count() methods
to obtain pin's name and pin's muxing given a pin reference.
This will be used by the new pinmux command.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Patrice Chotard [Wed, 24 Oct 2018 12:10:13 +0000 (14:10 +0200)]
dm: pinctrl: Add get_pin_muxing() ops
Add get_pin_muxing() which allows to display the muxing
of a given pin belonging to a pin-controller.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Martin Fuzzey [Wed, 24 Oct 2018 08:21:19 +0000 (10:21 +0200)]
w1-eeprom: Add support for Maxim DS2502 add only memory
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Adam Ford [Sun, 21 Oct 2018 18:58:39 +0000 (13:58 -0500)]
ARM: omap3_logic: Make CONFIG_SYS_TEXT_BASE match README.omap3
README.omap3 has two options. For option 1, CONFIG_SYS_TEXT_BASE
is set to 0x80100000. Option 2 lists 0x80008000. The existing
value is neither of these, so this patch makes it equivalent to
Option 1.
Signed-off-by: Adam Ford <aford173@gmail.com>
Adam Ford [Sun, 21 Oct 2018 15:50:59 +0000 (10:50 -0500)]
ARM: am3517_evm: Build for Thumb
In an effort to free up more resources in SPL and U-Boot, building
for Thumb shrinks the code side.
Before:
text data bss dec hex filename
685588 25808 275724 987120 f0ff0 u-boot
text data bss dec hex filename
55324 417 67460 123201 1e141 spl/u-boot-spl
After:
text data bss dec hex filename
515502 25808 275708 817018 c777a u-boot
text data bss dec hex filename
42910 417 67460 110787 1b0c3 spl/u-boot-spl
Signed-off-by: Adam Ford <aford173@gmail.com>
Adam Ford [Sun, 21 Oct 2018 15:34:49 +0000 (10:34 -0500)]
configs: am3517_evm: Use default OMAP3 memory settings
The AM3517 is mostly am omap3, so this partch removes the custom
memory configurations and just uses the default common entries
for omap3 and armv7.
Signed-off-by: Adam Ford <aford173@gmail.com>
Adam Ford [Sun, 21 Oct 2018 14:09:01 +0000 (09:09 -0500)]
ARM: DTS: Resync am3517-evm.dts with Linux 4.19
Some minor changes have been made to the AM3517-evm and the underlying
am3517.dtsi files. This patch re-sync's the DTS and DTSI files with
Linux.
Signed-off-by: Adam Ford <aford173@gmail.com>
Vladimir Zapolskiy [Fri, 19 Oct 2018 00:21:18 +0000 (03:21 +0300)]
mtd: nand: lpc32xx slc: disable DMA support in SPL builds
Testing and analysis shows that at the moment LPC32xx NAND SLC driver
can not get PL080 DMA backbone support in SPL build, because SPL NAND
loaders operate with subpage (ECC step to be precisely) reads, and
this is not supported in the NAND SLC + DMA + hardware ECC calculation
bundle.
The change removes a cautious build time warning and explicitly
disables DMA flavour of the driver for SPL builds, to reduce the
amound of #ifdef sections the code blocks are minimally reorganized.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Vladimir Zapolskiy [Fri, 19 Oct 2018 00:21:05 +0000 (03:21 +0300)]
mtd: nand: lpc32xx mlc: predefine number of NAND chips to support
Build option CONFIG_SYS_MAX_NAND_CHIPS is used by NXP LPC32xx NAND MLC
driver only, as a preparation for potential removal or replacement of
the option the change predefines CONFIG_SYS_MAX_NAND_CHIPS to 1, same
value is used by the single user Work Microwave Work 92105 board, thus
it will be safe now to remove the option as a board specific one.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Ye Li [Thu, 18 Oct 2018 14:16:46 +0000 (16:16 +0200)]
gpio: pca953x: Clear the polarity invert register at init
The pca953x_gpio driver uses default value of polarity inversion
register. For some devices like PCA9557 and MAX7310, their polarity
inversion register default value is 0xf0. So for high 4 ports, when
reading their values, the values are inverted as the actual level.
This patch clears the polarity inversion register to 0 at init, so
that the port read and write values are aligned.
Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Andreas Dannenberg [Wed, 17 Oct 2018 08:13:14 +0000 (13:43 +0530)]
clk: Allow clock defaults to be set also during re-reloc state
The earlier commit
f4fcba5c5ba ("clk: implement clk_set_defaults()")
which introduced the functionality for setting clock defaults such as
rates and parents will skip the processing when executing in a re-reloc
state. This for example can prevent the assigning of clock parents
when running in SPL code. Go ahead and remove this limitation.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Philippe Reynes [Thu, 11 Oct 2018 16:31:59 +0000 (18:31 +0200)]
bcm968580xref: add initial support
This add the initial support of the broadcom reference
board bcm968580xref with a bcm6858 SoC.
This board has 512 MB of ram, 256 MB of flash (nand),
2 usb port, 1 uart, 4 ethernet ports (LAN), 1 ethernet port (WAN).
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Philippe Reynes [Thu, 11 Oct 2018 16:31:58 +0000 (18:31 +0200)]
bcm6858: add initial support
This add the initial support of the broadcom bcm6858 SoC family,
only the cpu, dram and uart are supported.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Philippe Reynes [Thu, 11 Oct 2018 16:31:57 +0000 (18:31 +0200)]
serial: bcm6858: add serial support
This driver add the support of serial on bcm6858.
It's based on serial for bcm6345.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Heinrich Schuchardt [Thu, 11 Oct 2018 11:15:01 +0000 (13:15 +0200)]
cmd/bdinfo: correct output of numerical values
Display all digits on 64bit systems. Currently we print only the lower
32 bits. Examples of values that can exceed 32 bits are the size and start of
memory banks.
For fdt_blob use the same output method as for other values. This avoids
misalignment.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Prasanthi Chellakumar [Tue, 9 Oct 2018 18:46:40 +0000 (11:46 -0700)]
arm: at91: wdt: Convert watchdog driver to dm/dt
Convert the Watchdog driver for AT91SAM9x processors to support
the driver model and device tree. Changes "CONFIG_AT91SAM9_WATCHDOG"
to new "CONFIG_WDT_AT91" Kconfig option.
Signed-off-by: Prasanthi Chellakumar <prasanthi.chellakumar@microchip.com>
Chee Hong Ang [Mon, 20 Aug 2018 17:57:36 +0000 (10:57 -0700)]
ARMv8: SError exception handling in PSCI exception vectors
Allow platform vendors to handle SError interrupt exceptions from
ARMv8 PSCI exception vectors by overriding this weak function
'plat_error_handler'.
Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Chee Hong Ang [Mon, 20 Aug 2018 17:57:35 +0000 (10:57 -0700)]
ARMv8: Add EL3 exception handling for ARMv8's Kconfig
Kconfig option to allow all External Abort and SError exception
taken to EL3.
Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Chee Hong Ang [Mon, 20 Aug 2018 17:57:34 +0000 (10:57 -0700)]
ARMv8: Enable all asynchronous abort exceptions taken to EL3
Allow EL3 to handle all the External Abort and SError interrupt
exception occur in all exception levels.
Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Tom Rini [Fri, 16 Nov 2018 18:32:59 +0000 (13:32 -0500)]
configs: Enable THUMB2 on various ARM boards
The clearfog, corvus, wb45n and picosam9g45 configs are close to
exceeding their size limits, so enable THUMB2 builds on them to reclaim
space.
Signed-off-by: Tom Rini <trini@konsulko.com>
Tom Rini [Fri, 16 Nov 2018 13:37:50 +0000 (08:37 -0500)]
Merge tag 'pull-14nov18' of git://git.denx.de/u-boot-dm
- virtio implementation and supporting patches
- DM_FLAG_PRE_RELOC fixes
- regmap improvements
- minor buildman and sandbox things
Tom Rini [Thu, 15 Nov 2018 12:25:00 +0000 (07:25 -0500)]
travis: Ensure we use pytest 2.8.7
The latest version of pytest (4.0.0) makes some of the code we have in
test/py/conftest.py a fatal error that needs to be migrated.
Unfortunately this in turn requires changes that don't exist in older
versions of pytest such as 2.8.7 that ships with Ubuntu 16.04. Force
travis to use this older version of pytest.
Signed-off-by: Tom Rini <trini@konsulko.com>
Tom Rini [Wed, 14 Nov 2018 23:25:34 +0000 (18:25 -0500)]
Merge branch 'master' of git://git.denx.de/u-boot-sunxi
Bin Meng [Mon, 12 Nov 2018 15:02:17 +0000 (07:02 -0800)]
Revert "imx8qxp_mek: Disable CONFIG_DISPLAY_CPUINFO"
This reverts commit
c5bbfaf05dc8592b479a44df6abaadbab54fec2b.
Disabling CONFIG_DISPLAY_CPUINFO was a temporary solution to get
the v2018.11 release out. Now the merge window opens, revert it.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Sun, 14 Oct 2018 08:07:20 +0000 (01:07 -0700)]
cpu: sandbox: Add "u-boot, dm-pre-reloc" for all cpu nodes
To support CONFIG_DISPLAY_CPUINFO, add "u-boot,dm-pre-reloc" for
all cpu nodes in Sandbox test.dts.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Bin Meng [Sun, 14 Oct 2018 08:07:19 +0000 (01:07 -0700)]
cpu: Add DM_FLAG_PRE_RELOC flag to various cpu drivers
It turns out commit
c0434407b595 broke some boards which have DM CPU
driver with CONFIG_DISPLAY_CPUINFO option on. These boards just fail
to boot when print_cpuinfo() is called during boot.
Fixes:
c0434407b595 ("board_f: Use static print_cpuinfo if CONFIG_CPU is active")
Reported-by: Stefan Roese <sr@denx.de>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
Bin Meng [Wed, 24 Oct 2018 13:36:40 +0000 (06:36 -0700)]
dm: doc: Update description of pre-relocation support
Add some description about pre-relocation driver binding, including
usage of DM_FLAG_PRE_RELOC flag and caveats.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:39 +0000 (06:36 -0700)]
watchdog: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:38 +0000 (06:36 -0700)]
video: simplefb: Remove DM_FLAG_PRE_RELOC flag
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:37 +0000 (06:36 -0700)]
sysreset: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:36 +0000 (06:36 -0700)]
serial: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:35 +0000 (06:36 -0700)]
timer: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:34 +0000 (06:36 -0700)]
ram: bmips: Remove DM_FLAG_PRE_RELOC flag
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:33 +0000 (06:36 -0700)]
pinctrl: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:32 +0000 (06:36 -0700)]
mmc: omap: Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:31 +0000 (06:36 -0700)]
i2c: omap24xx: Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:30 +0000 (06:36 -0700)]
gpio: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Bin Meng [Wed, 24 Oct 2018 13:36:29 +0000 (06:36 -0700)]
clk: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Wed, 24 Oct 2018 13:36:28 +0000 (06:36 -0700)]
arm: stm32mp: Remove DM_FLAG_PRE_RELOC flag
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Simon Goldschmidt [Thu, 9 Aug 2018 19:04:19 +0000 (21:04 +0200)]
serial: ns16550: fix debug uart putc called before init
If _debug_uart_putc() is called before _debug_uart_init(), the
ns16550 debug uart driver hangs in a tight loop waiting for the
tx FIFO to get empty.
As this can happen via a printf sneaking in before the port calls
debug_uart_init(), let's rather ignore characters before the debug
uart is initialized.
This is done by reading the baudrate divisor and aborting if is zero.
Tested on socfpga_cyclone5_socrates.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Liviu Dudau [Fri, 28 Sep 2018 13:12:55 +0000 (14:12 +0100)]
uclass: Use uclass_foreach_dev() macro instead of open coding
Use the uclass_foreach_dev() macro instead of the open coded version.
Signed-off-by: Liviu Dudau <liviu.dudau@foss.arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:27 +0000 (02:21 -0700)]
doc: Document virtio support
Add REAME.virtio to describe the information about U-Boot support for
VirtIO devices, including supported boards, build instructions, driver
details etc.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:26 +0000 (02:21 -0700)]
test: dm: virtio: Add test cases for virtio uclass
Now that we have a sandbox virtio transport driver, add some test
cases to test virtio uclass driver.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:25 +0000 (02:21 -0700)]
virtio: Add a Sandbox transport driver
This driver provides support for Sandbox implementation of virtio
transport driver which is used for testing purpose only.
Two drivers are provided. The 2nd one is a driver that lacks the
'notify' op.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:24 +0000 (02:21 -0700)]
virtio: net: Support non-legacy device
For v1.0 compliant device, it always assumes the member 'num_buffers'
exists in the struct virtio_net_hdr while the legacy driver only
presented 'num_buffers' when VIRTIO_NET_F_MRG_RXBUF was negotiated.
Without that feature the structure was 2 bytes shorter.
Update the driver to support the non-legacy device.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:23 +0000 (02:21 -0700)]
virtio: pci: Support non-legacy PCI transport device
By default QEMU creates legacy PCI transport devices, but we can
ask QEMU to create non-legacy one if we pass additional device
property/value pairs in the command line:
-device virtio-blk-pci,disable-legacy=true,disable-modern=false
This adds a new driver driver to support non-legacy (modern) device
mode. Previous driver/file name is changed accordingly.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:22 +0000 (02:21 -0700)]
test: dm: pci: Add cases for finding next PCI capability APIs
Add test cases to cover the two newly added PCI APIs:
dm_pci_find_next_capability() & dm_pci_find_next_ext_capability().
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:21 +0000 (02:21 -0700)]
dm: pci: Add APIs to find next capability and extended capability
This introduces two new APIs dm_pci_find_next_capability() and
dm_pci_find_next_ext_capability() to get PCI capability address
and PCI express extended capability address for a given PCI device
starting from a given offset.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:20 +0000 (02:21 -0700)]
x86: qemu: Imply virtio PCI transport and device drivers
Add virtio drivers for QEMU x86 targets.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:19 +0000 (02:21 -0700)]
arm: qemu: Enumerate virtio bus during early boot
Currently devices on the virtio bus is not automatically enumerated,
which means peripherals on the virtio bus are not discovered by their
drivers. This uses board_init() to do the virtio enumeration.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:18 +0000 (02:21 -0700)]
arm: qemu: Add a Kconfig in the board directory
This adds a Kconfig file in the board directory, so that some
board-specific options can be specified there.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:17 +0000 (02:21 -0700)]
virtio: Add virtio over pci transport driver
This adds a transport driver that implements UCLASS_VIRTIO for
virtio over pci, which is commonly used on x86.
It only supports the legacy interface of the pci transport, which
is the default device that QEMU emulates.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:16 +0000 (02:21 -0700)]
x86: Implement arch-specific io accessor routines
At present the generic io{read,write}{8,16,32} routines only support
MMIO access. With architecture like x86 that has a separate IO space,
these routines cannot be used to access I/O ports.
Implement x86-specific version to support both PIO and MMIO access,
so that drivers for multiple architectures can use these accessors
without the need to know whether it's MMIO or PIO.
These are ported from Linux kernel lib/iomap.c, with slight changes.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:15 +0000 (02:21 -0700)]
kconfig: Introduce HAVE_ARCH_IOMAP
Introduce a new Kconfig option for architecture codes to control
whether it provides io{read,write}{8,16,32} I/O accessor functions.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:14 +0000 (02:21 -0700)]
riscv: qemu: Include some useful commands
With the virtio net and blk drivers, we can do more stuff with some
useful commands. Imply those in the board Kconfig.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:13 +0000 (02:21 -0700)]
riscv: qemu: Enumerate virtio bus during early boot
Currently devices on the virtio bus is not automatically enumerated,
which means peripherals on the virtio bus are not discovered by their
drivers. This uses board_init() to do the virtio enumeration.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tuomas Tynkkynen [Mon, 15 Oct 2018 09:21:12 +0000 (02:21 -0700)]
virtio: cmd: Add virtio command for virtio devices
Add 'virtio' command in U-Boot command line.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tuomas Tynkkynen [Mon, 15 Oct 2018 09:21:11 +0000 (02:21 -0700)]
virtio: Add block driver support
This adds virtio block device driver support.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tuomas Tynkkynen [Mon, 15 Oct 2018 09:21:10 +0000 (02:21 -0700)]
blk: Introduce IF_TYPE_VIRTIO
This adds a new block interface type for VirtIO block devices.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:09 +0000 (02:21 -0700)]
blk: Make blk_next_free_devnum() public
blk_next_free_devnum() can be helpful in some cases. Make it
a public API.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:08 +0000 (02:21 -0700)]
blk: Drop blk_prepare_device()
With the post_probe() changes, this API is no longer needed.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:07 +0000 (02:21 -0700)]
blk: Call part_init() in the post_probe() method
part_init() is currently called in every DM BLK driver, either
in its bind() or probe() method. However we can use the BLK
uclass driver's post_probe() method to do it automatically.
Update all DM BLK drivers to adopt this change.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:06 +0000 (02:21 -0700)]
efi_driver: blk: Switch to use platdata_auto_alloc_size for the driver data
Currently the efi block driver uses priv_auto_alloc_size for the
driver data, however that's only available after the device probe
phase. In order to make it accessible in an earlier phase, switch
to use platdata_auto_alloc_size instead.
This patch is the prerequisite for the follow up patch of DM BLK
driver changes to work with EFI loader.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:05 +0000 (02:21 -0700)]
sandbox: blk: Switch to use platdata_auto_alloc_size for the driver data
Currently the sandbox block driver uses priv_auto_alloc_size for
the driver data, however that's only available after the device
probe phase. In order to make it accessible in an earlier phase,
switch to use platdata_auto_alloc_size instead.
This patch is the prerequisite for the follow up patch of DM BLK
driver changes to work with Sandbox.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:04 +0000 (02:21 -0700)]
test: dm: blk: Correct blk_base test case
The blk_base test case creates a USB mass storage block device with
the Sandbox host block device as its parent. This does not make any
sense and causes potential issue, for example if the test case tries
to read/write anything on the USB mass storage block device it will
definitely fail as its parent is not on USB bus at all.
Correct the test case by creating another Sandbox host block device
instead of the USB mass storage one and adjust the case accordingly.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tuomas Tynkkynen [Mon, 15 Oct 2018 09:21:03 +0000 (02:21 -0700)]
virtio: Add net driver support
This adds virtio net device driver support.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:02 +0000 (02:21 -0700)]
virtio: Add virtio over mmio transport driver
VirtIO can use various different buses and virtio devices are
commonly implemented as PCI devices. But virtual environments
without PCI support (a common situation in embedded devices
models) might use simple memory mapped device (“virtio-mmio”)
instead of the PCI device.
This adds a transport driver that implements UCLASS_VIRTIO for
virtio over mmio.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tuomas Tynkkynen [Mon, 15 Oct 2018 09:21:01 +0000 (02:21 -0700)]
virtio: Add codes for virtual queue/ring management
This adds support for managing virtual queue/ring, the channel
for high performance I/O between host and guest.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:21:00 +0000 (02:21 -0700)]
dm: Add a new uclass driver for VirtIO transport devices
This adds a new virtio uclass driver for “virtio” [1] family of
devices that are are found in virtual environments like QEMU,
yet by design they look like physical devices to the guest.
The uclass driver provides child_pre_probe() and child_post_probe()
methods to do some common operations for virtio device drivers like
device and driver supported feature negotiation, etc.
[1] http://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.pdf
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:20:59 +0000 (02:20 -0700)]
riscv: bootm: Add dm_remove_devices_flags() call to do_bootm_linux()
This adds a call to dm_remove_devices_flags() to do_bootm_linux()
so that drivers that have one of the removal flags set (e.g.
DM_FLAG_ACTIVE_DMA_REMOVE) in their driver struct, may do some
last-stage cleanup before the OS is started.
arm and x86 already did such, and we should do the same for riscv.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:20:58 +0000 (02:20 -0700)]
test: dm: core: Add test case for uclass driver's child_post_probe()
Add test case to cover uclass driver's child_post_probe() method.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bin Meng [Mon, 15 Oct 2018 09:20:57 +0000 (02:20 -0700)]
dm: core: Allow uclass to set up a device's child after it is probed
Some buses need to set up their child devices after they are probed.
Support a common child_post_probe() method for the uclass.
With this change, the two APIs uclass_pre_probe_device() and
uclass_post_probe_device() become symmetric.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Mario Six [Mon, 15 Oct 2018 07:24:15 +0000 (09:24 +0200)]
regmap: Add overview documentation
Add some overview documentation that explains the purpose and some of
the features and limitations of the regmap interface.
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Mario Six [Mon, 15 Oct 2018 07:24:14 +0000 (09:24 +0200)]
regmap: Add endianness support
Add support for switching the endianness of regmap accesses via the
"little-endian", "big-endian", and "native-endian" boolean properties in
the device tree.
The default endianness is native endianness.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Mario Six [Mon, 15 Oct 2018 07:24:13 +0000 (09:24 +0200)]
test: regmap: Add test for regmap_{set, get}
Add test for regmap_{set,get} functions.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Mario Six [Mon, 15 Oct 2018 07:24:12 +0000 (09:24 +0200)]
regmap: Define regmap_{get,set}
It would be convenient if one could use the regmap API in conjunction
with register maps defined as structs (i.e. structs that directly mirror
the memory layout of the registers in question). A similar approach was
planned with the regmap_write32/regmap_read32 macros, but was never
used.
Hence, implement regmap_set/regmap_range_set and
regmap_get/regmap_range_get macros, which, given a register map, a
struct describing the layout of the register map, and a member name
automatically produce regmap_read/regmap_write calls that access the
specified member in the register map.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Mario Six [Mon, 15 Oct 2018 07:24:11 +0000 (09:24 +0200)]
regmap: Support reading from specific range
It is useful to be able to treat the different ranges of a regmap
separately to be able to use distinct offset for them, but this is
currently not implemented in the regmap API.
To preserve backwards compatibility, add regmap_read_range and
regmap_write_range functions that take an additional parameter
'range_num' that identifies the range to operate on.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Mario Six [Mon, 15 Oct 2018 07:24:10 +0000 (09:24 +0200)]
regmap: Add raw read/write functions
The regmap functions currently assume that all register map accesses
have a data width of 32 bits, but there are maps that have different
widths.
To rectify this, implement the regmap_raw_read and regmap_raw_write
functions from the Linux kernel API that specify the width of a desired
read or write operation on a regmap.
Implement the regmap_read and regmap_write functions using these raw
functions in a backwards-compatible manner.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Mario Six [Mon, 15 Oct 2018 07:24:09 +0000 (09:24 +0200)]
mips: Implement {in, out}_{le, be}_{16, 32, 64} and {in, out}_8
MIPS is the only architecture currently supported by U-Boot that does
not implement any of the in/out register access functions.
To have a interface that is useable across architectures, add the
functions to the MIPS architecture (implemented using the __raw_write
and __raw_read functions).
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Mario Six [Mon, 15 Oct 2018 07:24:08 +0000 (09:24 +0200)]
regmap: Add error output
Add some debug output in cases where the initialization of a regmap
fails.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Mario Six [Mon, 15 Oct 2018 07:24:07 +0000 (09:24 +0200)]
regmap: Introduce init_range
Both fdtdec_get_addr_size_fixed and of_address_to_resource can fail with
an error, which is not currently checked during regmap initialization.
Since the indentation depth is already quite deep, extract a new
'init_range' method to do the initialization.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Simon Glass [Tue, 12 Jun 2018 05:26:46 +0000 (23:26 -0600)]
buildman: Add a --boards option to specify particular boards to build
At present 'buildman sandbox' will build all 5 boards for the sandbox
architecture rather than the single board 'sandbox'. The only current way
to exclude sandbox_spl, sandbox_noblk, etc. is to use -x which is a bit
clumbsy.
Add a --boards option to allow individual build targets to be specified.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sun, 17 Jun 2018 14:57:43 +0000 (08:57 -0600)]
sandbox: Try to start the RAM buffer at a particular address
Use a starting address of 256MB which should be available. This helps to
make sandbox RAM buffers pointers more recognisable.
Signed-off-by: Simon Glass <sjg@chromium.org>
Mario Six [Thu, 4 Oct 2018 07:22:24 +0000 (09:22 +0200)]
core: ofnode: Fix mem leak in error path
A newly created property is currently not freed if a name could not be
allocated. This patch fixes the resulting memory leak in the error
patch.
Reported-by: Coverity (CID: 184085)
Fixes:
e369e58df79c ("core: Add functions to set properties in live-tree")
Signed-off-by: Mario Six <mario.six@gdsys.cc>