Driver are responsible for setting up ECC parameters correctly.
Those include:
- Check if ECC parameters specified (usually by DT) are valid
- Meet the chip's ECC requirement
- Maximize ECC strength if NAND_ECC_MAXIMIZE flag is set
The logic can be generalized by factoring out common code.
This commit adds 3 helpers to the NAND framework:
nand_check_ecc_caps - Check if preset step_size and strength are valid
nand_match_ecc_req - Match the chip's requirement
nand_maximize_ecc - Maximize the ECC strength
To use the helpers above, a driver needs to provide:
- Data array of supported ECC step size and strength
- A hook that calculates ECC bytes from the combination of
step_size and strength.
By using those helpers, code duplication among drivers will be
reduced.
Boris Brezillon [Tue, 21 Nov 2017 17:38:28 +0000 (02:38 +0900)]
mtd: nand: Pass the CS line to ->setup_data_interface()
Some NAND controllers can assign different NAND timings to different
CS lines. Pass the CS line information to ->setup_data_interface() so
that the NAND controller driver knows which CS line is concerned by
the setup_data_interface() request.
Masahiro Yamada [Tue, 21 Nov 2017 17:38:27 +0000 (02:38 +0900)]
mtd: nand: allow drivers to request minimum alignment for passed buffer
In some cases, nand_do_{read,write}_ops is passed with unaligned
ops->datbuf. Drivers using DMA will be unhappy about unaligned
buffer.
The new struct member, buf_align, represents the minimum alignment
the driver require for the buffer. If the buffer passed from the
upper MTD layer does not have enough alignment, nand_do_*_ops will
use bufpoi.
Boris Brezillon [Tue, 21 Nov 2017 17:38:26 +0000 (02:38 +0900)]
mtd: nand: Wait for PAGEPROG to finish in drivers setting NAND_ECC_CUSTOM_PAGE_ACCESS
Drivers setting NAND_ECC_CUSTOM_PAGE_ACCESS are supposed to handle the
full read/write page sequence, and waiting for a page to actually be
programmed is part of this write-page sequence.
This is also what is done in ->write_oob_xxx() hooks, so let's do that in
->write_page_xxx() as well to make it consistent.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 41145649f4acb30249b636b945053db50c9331c5]
[masahiro:
There is no driver setting NAND_ECC_CUSTOM_PAGE_ACCESS in U-Boot.
No driver is affected by this change.] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Marc Gonzalez [Tue, 21 Nov 2017 17:38:22 +0000 (02:38 +0900)]
mtd: nand: Support controllers with custom page
If your controller already sends the required NAND commands when
reading or writing a page, then the framework is not supposed to
send READ0 and SEQIN/PAGEPROG respectively.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 3371d663bb4579f1b2003a92162edd6d90edd089] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Boris Brezillon [Tue, 21 Nov 2017 17:38:21 +0000 (02:38 +0900)]
mtd: nand: Add a few more timings to nand_sdr_timings
Add the tR_max, tBERS_max, tPROG_max and tCCS_min timings to the
nand_sdr_timings struct.
Assign default/safe values for the statically defined timings, and
extract them from the ONFI parameter table if the NAND is ONFI
compliant.
Boris Brezillon [Tue, 21 Nov 2017 17:38:20 +0000 (02:38 +0900)]
mtd: nand: Fix data interface configuration logic
When changing from one data interface setting to another, one has to
ensure a specific sequence which is described in the ONFI spec.
One of these constraints is that the CE line has go high after a reset
before a command can be sent with the new data interface setting, which
is not guaranteed by the current implementation.
Rework the nand_reset() function and all the call sites to make sure the
CE line is asserted and released when required.
Also make sure to actually apply the new data interface setting on the
first die.
Boris Brezillon [Tue, 21 Nov 2017 17:38:19 +0000 (02:38 +0900)]
mtd: nand: automate NAND timings selection
The NAND framework provides several helpers to query timing modes supported
by a NAND chip, but this implies that all NAND controller drivers have
to implement the same timings selection dance. Also currently NAND
devices can be resetted at arbitrary places which also resets the timing
for ONFI chips to timing mode 0.
Provide a common logic to select the best timings based on ONFI or
->onfi_timing_mode_default information. Hook this into nand_reset()
to make sure the new timing is applied each time during a reset.
NAND controller willing to support timings adjustment should just
implement the ->setup_data_interface() method.
Sascha Hauer [Tue, 21 Nov 2017 17:38:17 +0000 (02:38 +0900)]
mtd: nand: convert ONFI mode into data interface
struct nand_data_interface is the designated type to pass to
the NAND drivers to configure the timing. To simplify further
patches convert the onfi_sdr_timings array from type struct
nand_sdr_timings nand_data_interface.
Sascha Hauer [Tue, 21 Nov 2017 17:38:16 +0000 (02:38 +0900)]
mtd: nand: Introduce nand_data_interface
Currently we have no data structure to fully describe a NAND timing.
We only have struct nand_sdr_timings for NAND timings in SDR mode,
but nothing for DDR mode and also no container to store both types
of timing.
This patch adds struct nand_data_interface which stores the timing
type and a union of different timings. This can be used to pass to
drivers in order to configure the timing.
Add kerneldoc for struct nand_sdr_timings while touching it anyway.
Sascha Hauer [Tue, 21 Nov 2017 17:38:15 +0000 (02:38 +0900)]
mtd: nand: Create a NAND reset function
When NAND devices are resetted some initialization may have to be done,
like for example they have to be configured for the timing mode that
shall be used. To get a common place where this initialization can be
implemented create a nand_reset() function. This currently only issues
a NAND_CMD_RESET to the NAND device. The places issuing this command
manually are replaced with a call to nand_reset().
Boris Brezillon [Tue, 21 Nov 2017 17:38:13 +0000 (02:38 +0900)]
mtd: nand: Add an option to maximize the ECC strength
The generic NAND DT bindings allows one to tweak the ECC strength and
step size to their need. It can be used to lower the ECC strength to
match a bootloader/firmware config, but might also be used to get a better
reliability.
In the latter case, the user might want to use the maximum ECC strength
without having to explicitly calculate the exact value (this value not
only depends on the OOB size, but also on the NAND controller, and can
be tricky to extract).
Add a generic 'nand-ecc-maximize' DT property and the associated
NAND_ECC_MAXIMIZE flag, to let ECC controller drivers select the best
ECC strength and step-size on their own.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org>
[Linux commit: ba78ee00e1ff84de9b3ad33edbd3ec599099ee82]
[masahiro: of_property_read_bool -> fdt_getprop for U-Boot] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Jagan Teki [Mon, 20 Nov 2017 18:32:15 +0000 (00:02 +0530)]
board: icore-rqs: Fix mmc get env device
As per USDHC boot eFUSE descriptions:
USDHC3 => devno 2
USDHC4 => devno 3
Linux will detect mmc0, mmc1, mmc2 based on the status
"okay" on usdhc so imx6qdl-icore-rqs.dtsi has enabled
usdhc1, usdhc3 and usdhc4.But U-Boot can detect based
on the aliases so add mmc1, mmc2 for usdhc3 and usdhc4
respectively and return the board_mmc_get_env_dev
by subtracting -1
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Jagan Teki [Mon, 20 Nov 2017 18:32:13 +0000 (00:02 +0530)]
pinctrl: imx6ul: Fix pinctrl data overlapped with DT area
before relocation pinctrl data BSS is overlapping DT area,
when .data is using uninitialized global variable,
imx6_pinctrl_soc_info. So assign them flags ZERO_OFFSET_VALID
to prevent BSS overlap
Suggested-by: Lokesh Vutla <lokeshvutla@ti.com> Reported-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Fabio Estevam [Wed, 22 Nov 2017 13:15:28 +0000 (11:15 -0200)]
mx6sxsabresd: Use PARTUUID to specify the rootfs location
mx6sxsabresd can run different kernel versions, such as NXP 4.1 or mainline.
Currently the rootfs location is passed via mmcblk number and the
problem with this approach is that the mmcblk number for the SD
card changes depending on the kernel version.
In order to avoid such issue, use the UUID method to specify the
rootfs location.
The boot (and fallback/emergency boot) concept for the RK3399-Q7
differs from Rockchip's reference platforms.
On the RK3399-Q7, some of this functionality is present in the
bootloader itself (and configurable); some is backed in hardware by
the Qseven BIOS_DISABLE signal to invoke the final stages of fallbacks
(i.e. either an external boot bypassing on-module memories or falling
back to the BROM for USB recovery).
In summary: the ADC-based boot_mode check does not apply for the
RK3399-Q7 and we therefore disable it (in this commit) by setting
CONFIG_BOOT_MODE_REG to 0.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Fri, 24 Nov 2017 13:44:58 +0000 (14:44 +0100)]
rockchip: fix turning off boot-mode via Kconfig
The ROCKCHIP_BOOT_MODE_REG option defaults to a hex value, so 0 will
show as 0x0 if a default is provided and changed via Kconfig.
However, it still will show as 0, if no default is given.
Consequently, the "is set to something other than 0" test in a
Makefile is cumbersome. Instead this check can easily be performed in
the C-code.
This removes the ifeq-check from mach-rockchip/Makefile, adds a
matching #if-check to boot_mode.c and fixes resulting link issues (if
boot_mode.o was not included due to the Makefile check) by defining a
stub function (in case the functionality is not built in) for
setup_boot_mode in boot_mode.c.
Fixes: e306779 (rockchip: make boot_mode related codes reused across all platforms) Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Wed, 22 Nov 2017 18:47:37 +0000 (19:47 +0100)]
rockchip: pinctrl: rk3399: add support for I2C8
The RK3399 has a total of 9 I2C controllers. To support these, the
enum in periph.h is extended and the mapping from the IRQ numbers to
the peripheral-ids is extended to ensure that pinctrl requests are
passed through to the function configuring the I2C pins.
For I2C8, the pinctrl is implemented and tested (on a RK3399-Q7) using
communication with the FAN53555 connected on I2C8.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Philipp Tomsich [Wed, 22 Nov 2017 18:45:04 +0000 (19:45 +0100)]
rockchip: clk: rk3399: change extract_bits to bitfield_extract
The RK3399 clk driver still has a left-over use of extract_bits, which
can be replaced by using bitfield_extract from include/bitfield.h.
This rewrites the invocation to use the shared function.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Fri, 24 Nov 2017 12:26:03 +0000 (13:26 +0100)]
spl: fit: add SPL_FIT_IMAGE_TINY config to reduce code-size
A minor code-size increase from the changes for tracking the os-type
of FIT images and from infrastructure for recording the loadables into
the the loaded FDT, broke the builds for sun50i and some OMAP2+ devices.
This change adds a new config option (enabled by default for
MACH_SUN50I, MACH_SUN50I_H5 and ARCH_OMAP2PLUS) that does skips these
processing steps (bringing code size down to below the limit
again). The os-type is not evaluated, but assumed to be IH_OS_UBOOT
(i.e. taking the code-paths intended for backward-compatibility).
Note that enabling this config option precludes any useful downstream
processing, such as utilising a special calling convention for ATF or
OPTEE, based on the os-type of the loadables.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:43 +0000 (21:29 +0200)]
rockchip: defconfig: lion-rk3368: sync up with SPL changes for ATF
This tracks the SPL changes for ATF for the RK3368-uQ7:
* renames ATF_SUPPORT to ATF
* drops CONFIG_SPL_ATF_TEXT_BASE (now dynamically retrieved from
the .itb file)
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:42 +0000 (21:29 +0200)]
rockchip: defconfig: puma-rk3399: sync up with SPL changes for ATF
This defconfig update makes use of the new features:
* CONFIG_ROCKCHIP_SPL_RESERVE_IRAM is now set to 0, as there is no
overlap between the M0 firmware and the ATF (we load this to DRAM
and relocate it to its final location within the ATF)
* tracks the ATF_SUPPORT -> ATF renaming
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:41 +0000 (21:29 +0200)]
rockchip: board: lion-rk3368: update .its file
For the RK3368-uQ7, we can now update the .its file to mark the
Trusted Firmware as out 'firmware' bootable and annotate both ATF and
U-Boot with an OS-type.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:40 +0000 (21:29 +0200)]
rockchip: board: puma-rk3399: update .its file to use new features
This commit updates the .its file for the RK3399-Q7 to use the new
features and demonstrates how to use those:
* it marks the ATF as the 'firmware'
* it tracks the OS-type for U-Boot and ATF
* it loads the PMU (M0) firmware to DRAM and records the location
to /fit-images (where our ATF reads it from)
With the handoff of the next-stage FDT to ATF in place, we can now use
this to pass information about the load addresses and names of each
loadables to ATF: now we can load the M0 firmware into DRAM and avoid
overwriting parts of the SPL stage. This is achieved by changing our
.its-file to use an available area of DRAM as the load-address.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:35 +0000 (21:29 +0200)]
spl: atf: introduce spl_invoke_atf and make bl31_entry private
This adds a new interface spl_invoke_atf() that takes a spl_image_info
argument and then derives the necessary parameters for the ATF entry.
Based on the additional information recorded (into /fit-images) from
the FIT loadables, we can now easily locate the next boot stage.
We now pass a pointer to a FDT as the platform-specific parameter
pointer to ATF (so we don't run into the future headache of every
board/platform defining their own proprietary tag-structure), as
FDT access is already available in ATF.
With the necessary infrastructure in place, we can now update the
support for the ARM Trusted Firmware to dispatch into the
spl_invoke_atf function only if a IH_OS_ARM_TRUSTED_FIRMWARE image is
loaded.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:34 +0000 (21:29 +0200)]
spl: fit: implement recording of loadables into /fit-images
If a FDT was loaded (e.g. to append it to U-Boot image), we store it's
address and record information for all loadables into this FDT. This
allows us to easily keep track of images for multiple privilege levels
(e.g. with ATF) or of firmware images preloaded into temporary
locations (e.g. PMU firmware that may overlap the SPL stage).
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:33 +0000 (21:29 +0200)]
spl: fit: implement fdt_record_loadable
During the loading of more complex FIT images (e.g. when the invoked
next stage needs to find additional firmware for a power-management
core... or if there are multiple images for different privilege levels
started in parallel), it is helpful to create a record of what images
are loaded where: if a FDT is loaded for one of the next stages, it
can be used to convey the status and location of loadables.
This adds a fdt_record_loadable() function that can be invoked to
record the status of each loadable below the /fit-images path.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:32 +0000 (21:29 +0200)]
spl: fit: simplify logic for FDT loading for non-OS boots
To better support bootin through an ATF or OPTEE, we need to
streamline some of the logic for when the FDT is appended to an image:
depending on the image type, we'd like to append the FDT not at all
(the case for the OS boot), to the 'firmware' image (if it is a
U-Boot) or to one of the loadables (if the 'firmware' is an ATF, an
OPTEE, or some other image-type and U-Boot is listed in the
loadabled).
To achieve this goal, we drop the os_boot flag and track the type of
image loaded. If it is of type IH_OS_U_BOOT, we append the FDT.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Acked-by: York Sun <york.sun@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:30 +0000 (21:29 +0200)]
spl: add a fdt_addr field to spl_image_info
When loading a full U-Boot with detached device-tree using the SPL FIT
backend, we should store the address of the FDT loaded as part of the
SPL image info: this allows us to fixup the FDT with additional info
we may want to propagate onward.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Philipp Tomsich [Wed, 13 Sep 2017 19:29:29 +0000 (21:29 +0200)]
image: add IH_OS_ARM_TRUSTED_FIRMWARE for ARM Trusted Firmware
To boot on ARMv8 systems with ARM Trusted Firmware, we need to
assemble an ATF-specific parameter structure and also provide the
address of the images started by ATF (e.g. BL3-3, which may be the
full U-Boot).
To allow us to identify an ARM Trusted Firmware contained in a FIT
image, this adds the necessary definitions.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 13 Nov 2017 04:52:20 +0000 (21:52 -0700)]
binman: Set up 'entry' to permit full test coverage
There is a little check at the top of entry.py which decides if importlib
is available. At present this has no test coverage. To add this we will
need to import the module twice, once with importlib and once without.
In preparation for allowing a test to control the importing of this
module, remove all global imports of the 'entry' module.
Simon Glass [Mon, 13 Nov 2017 04:52:15 +0000 (21:52 -0700)]
buildman: Fix up tests
The tests were broken by two separate commits which adjusted the output
when boards are listed. Fix this by adding back a PowerPC board and
putting the name of each board in the test.
Fixes: b9f7d881 (powerpc, 5xx: remove some "5xx" remains) Fixes: 8d7523c5 (buildman: Allow showing the list of boards with -n) Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 13 Nov 2017 04:52:08 +0000 (21:52 -0700)]
binman: Rename tests to ftest
At present these tests use the same filename as patman. This adds
confusion when running all tests, since error messages look very similar.
In fact binman tries to run the wrong tests at present.
Simon Glass [Mon, 13 Nov 2017 04:52:07 +0000 (21:52 -0700)]
binman: Add a Makefile for test-program compilation
These test programs are includedd as binary files in U-Boot to avoid
having to build them (and associated toolchain differences). Instructions
on building are in the files themselves, but it seems better to provide
a Makefile which can be manually run when desired.
Add a Makefile, separate from the normal build system, to handle this.
Simon Glass [Mon, 13 Nov 2017 04:52:05 +0000 (21:52 -0700)]
binman: Add better Makefile debugging
There is a debugging option in the Makefile to allow people to figure out
which u-boot.dtsi files are used in the build. But is it not easy to use
since it only shows files it finds, not those it is looking for. Update it
and update the mention of it to the docs.
A few header files still have a definition of CONFIG_ENV_SIZE, causing
warnings during buildman runs. This removes the duplicate definitions
from evb_px5.h, geekbox.h and rv1108_common.h.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Andy Yan [Wed, 11 Oct 2017 07:01:31 +0000 (15:01 +0800)]
rockchip: check download key before bootup
Enter download mode if the download key pressed.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Converted printfs in boot_mode.c to debug/pr_err:] Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Andy Yan [Wed, 11 Oct 2017 07:00:49 +0000 (15:00 +0800)]
rockchip: add support for enter to bootrom download mode
Rockchip bootrom will enter download mode if it returns from
spl/tpl with a non-zero value and couldn't find a valid image
in the backup partition.
This patch provide a method to instruct the system to back to
bootrom download mode by checking the BROM_DOWNLOAD_FLAG register.
As the bootrom download function relys on some modules such as
interrupts, so we need to back to bootrom as early as possbile
before the tpl/spl code override the interrupt configurations.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Andy Yan [Wed, 11 Oct 2017 07:00:16 +0000 (15:00 +0800)]
rockchip: make boot_mode related codes reused across all platforms
setup_boot_mode function use the same logic but different
mode register address across all the rockchip platforms,
so it's better to make this function reused across all the
platforms, and let the mode register address setting from
the config file.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Kever Yang [Fri, 3 Nov 2017 07:16:13 +0000 (15:16 +0800)]
rockchip: clock: update sysreset driver binding
Using priv for new sysreset driver binding.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Tue, 21 Nov 2017 21:28:55 +0000 (22:28 +0100)]
rockchip: sysreset: update Makefile to work with merged sysreset driver
After applying the merged sysreset driver, there are build failures
due to an out-of-sync Makefile. This updates drivers/sysreset/Makefile
to address these build failures.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Kever Yang [Fri, 3 Nov 2017 07:16:12 +0000 (15:16 +0800)]
rockchip: sysreset: merge into one common driver
Use a common driver for all Rockchip SOC instead of one for each SoC.
Use driver_data for reg offset.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:18 +0000 (16:21 +0200)]
rockchip: mkimage: remove unused code-paths (spl_boot0 is now implied)
With all targets converted to generate prepadded images, this removes
the spl_boot0 field from our config structure and removes the unused
code-path (for images that are not prepadded): i.e. spl_boot0 is now
implied as 'true' and the code is specialised by removing the other
case.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:16 +0000 (16:21 +0200)]
rockchip: back-to-bootrom: allow passing a cmd to the bootrom
The BROM supports forcing it to enter download-mode, if an appropriate
result/cmd-word is returned to it. There already is a series to
support this in review, so this prepares the (newly C-version) of the
back-to-bootrom code to accept a cmd to passed on to the BROM.
All the existing call-sites are adjusted to match the changed function
signature.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:15 +0000 (16:21 +0200)]
rockchip: rk3188: use boot0 hook to load up SPL in 2 steps
For the RK3188, the BROM will attempt to load up the first stage
image (SPL for the RK3188) in two steps: first 1KB to offset 0x800
in the SRAM and then the remainder to offset 0xc00 in the SRAM.
It always enters at 0x804, though.
With this changeset, the RK3188 boot removes the TPL (stub) stage and
builds a single SPL binary that utilizes the early back-to-bootrom via
the boot0-hook.
Consequently, the passing of the saved boot params via pmu->os_reg[2]
is also removed.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:14 +0000 (16:21 +0200)]
rockchip: back-to-bootrom: replace assembly-implementation with C-code
The back-to-bootrom implementation for Rockchip has always relied on
the stack-pointer being valid on entry, so there was little reason to
have this as an assembly implementation.
This provides a new C-only implementation of save_boot_params and
back_to_bootrom (relying on setjmp/longjmp) and removes the older
assembly-only implementation.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:13 +0000 (16:21 +0200)]
arm: provide a PCS-compliant setjmp implementation
The previous setjmp-implementation (as a static inline function that
contained an 'asm volatile' sequence) was extremely fragile: (some
versions of) GCC optimised the set of registers. One critical example
was the removal of 'r9' from the clobber list, if -ffixed-reg9 was
supplied.
To increase robustness and ensure PCS-compliant behaviour, the setjmp
and longjmp implementation are now in assembly and closely match what
one would expect to find in a libc implementation.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:12 +0000 (16:21 +0200)]
arm: mark save_boot_params_ret as a function
As no '.type' was set for save_boot_params_ret in start.S, binutils
did not track whether it was emitted as A32 or T32. By properly
marking save_boot_params_ret as a potential function entry, we can
make sure that the compiler will insert the appropriate instructions
for branching to save_boot_params_ret both for call-sites emitted as
A32 and T32.
Reported-by: Andy Yan <andy.yan@rock-chips.com> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:11 +0000 (16:21 +0200)]
arm: make save_boot_params_ret prototype visible for AArch64
The save_boot_params_ret() prototype (for those of us, that have a
valid SP on entry and can implement save_boot_params() in C), was
previously only defined for !defined(CONFIG_ARM64).
This moves the declaration to a common block to ensure the prototype
is available to everyone that might need it.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
Philipp Tomsich [Tue, 10 Oct 2017 14:21:10 +0000 (16:21 +0200)]
rockchip: boot0 hook: support early return for RK3188/RK3066-style BROM
Some Rockchip BROM versions (e.g. the RK3188 and RK3066) first read 1KB data
from NAND into SRAM and executes it. Then, following a return to bootrom, the
BROM loads additional code to SRAM (not overwriting the first block read) and
reenters at the same address as the first time.
To support booting either a TPL (on the RK3066) or SPL (on the RK3188) using
this model of having to count entries, this commit adds code to the boot0
hook to track the number of entries and handle them accordingly.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
projects / u-boot / log