Commit graph

38195 commits

Author SHA1 Message Date
Qianyu Gong
581ff00bf7 armv8: ls1043aqds: use configurable clock
Get the clocks from FPGA through I2C, if IFC is disabled.

Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-06-28 12:08:43 -07:00
Qianyu Gong
a2fd238e49 armv8: ls1043aqds: fix to get boot device info from FPGA
The LBMAP switches on the board will tell which boot device is used.
Only QSPI boot is supported if the boot device is IFCCard.

Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-06-24 08:33:34 -07:00
Hou Zhiqiang
f3acaf438d armv8/fsl_lsch2: Correct the cores frequency initialization
The register CLKCNCSR controls the frequency of all cores in the same
cluster.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-06-24 08:33:08 -07:00
Tom Rini
b66a5c03a0 Merge branch 'master' of git://git.denx.de/u-boot-uniphier 2016-06-21 20:43:21 -04:00
Masahiro Yamada
fc2661eebe tools: moveconfig: show suspicious boards with possible misconversion
There are some cases where config options are moved, but they are
ripped off at the final savedefconfig stage:

  - The moved option is not user-configurable, for example, due to
    a missing prompt in the Kconfig entry

  - The config was not defined in the original config header despite
    the Kconfig specifies it as non-bool type

  - The config define in the header contains reference to another
    macro, for example:
        #define CONFIG_CONS_INDEX     (CONFIG_SYS_LPC32XX_UART - 2)
    The current moveconfig does not support recursive macro expansion.

In these cases, the conversion is very likely to be an unexpected
result.  That is why I decided to display the log in yellow color
in commit 5da4f857be ("tools: moveconfig: report when CONFIGs are
removed by savedefconfig").

It would be nice to display the list of suspicious boards when the
tool finishes processing.  It is highly recommended to check the
defconfigs once again when this message is displayed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-22 09:23:00 +09:00
Masahiro Yamada
96dccd9767 tools: moveconfig: simplify show_failed_boards() and show more info
Since commit 1d085568b3 ("tools: moveconfig: display log atomically
in more readable format"), the function color_text() is clever enough
to exclude LF from escape sequences.  Exploit it for removing the
"for" loops from Slots.show_failed_boards().

Also, display "(the list has been saved in moveconfig.failed)" if
there are failed boards.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-22 09:22:54 +09:00
Masahiro Yamada
f432c33f27 tools: moveconfig: simplify source tree switching
The subprocess.Popen() does not change the child process's working
directory if cwd=None is given.  Let's exploit this fact to refactor
the source directory handling.

We no longer have to pass "-C <reference_src_dir>" to the sub-process
because self.current_src_dir tracks the source tree against which we
want to run defconfig/autoconf.

The flag self.use_git_ref is not necessary either because we can know
the current state by checking whether the self.current_src_dir is a
valid string or None.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-22 09:22:48 +09:00
Masahiro Yamada
5cc42a5184 tools: moveconfig: change class WorkDir to class ReferenceSource
The class WorkDir can be used in a very generic way, but currently
it is only used for containing a reference source directory.

This commit changes it for a more dedicated use.  The move_config
function can be more readable by enclosing the git-clone and git-
checkout in the class constructor.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-22 09:22:42 +09:00
Masahiro Yamada
5030159e27 tools: moveconfig: fix needless move for config with default 1
When moving an integer type option with default value 1, the tool
moves configs with the same value as the default (, and then removed
by the later savedefconfig).  This is a needless operation.

The KconfigParser.parse_one_config() should compare the config after
the "=y -> =1" fixup.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-22 09:22:42 +09:00
Guillaume GARDET
69fd0d4131 NFS: Add error message when U-Boot NFS version (V2) is not supported by NFS server
Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
Cc: joe.hershberger@ni.com
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-21 17:01:52 -05:00
Nathan Rossi
08e64cece2 net: phy: marvell: Do not reset 88e1310 after autoneg
Commit a058052c "net: phy: do not read configuration register on reset",
changes the behaviour of the phy_reset function such that the state of
the BMCR register is not preserved during reset.

Change the config function for the m88e1310 so that it does not do a
reset after configuring auto-negotiation.

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Stefan Roese <sr@denx.de>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2016-06-21 17:01:52 -05:00
Alexey Firago
79887749f8 net: phy: micrel: add support for KSZ886x switches in MIIM mode
This patch adds a phy driver for the Micrel KSZ886x switches.

Similarly to the KSZ8895, SoC MAC is directly connected to the switch
MAC on the switch CPU port, so the link to the switch is always up.

KSZ886x switches can be used in the following configuration modes:
- Unmanaged mode with config stored in external EEPROM
- Managed mode over SPI
- Managed mode over I2C
- Managed mode over mdio/mdc (aka MIIM or SMI)

This patch supports only unmanaged and MIIM modes.

Based on Micrel KSZ886x driver from Linux kernel and
Micrel KSZ8895 driver from U-Boot.

Verified with the KSZ8863MLL.

Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-21 17:01:52 -05:00
Stephen Warren
dad7b74045 net: rtl8169: fix switching between adapters
The rtl8169 driver uses a global variable to store the register address
of the adapter being operated upon. This is updated to point at the
correct adapter when sending or receiving a packet, or shutting down the
adapter, but not when initializing the adapter. Consequently, switching
between different adapters within the same U-Boot runtime does not work
correctly since the driver programs the wrong registers during
rtl8169_eth_start() -> rtl8169_common_start() -> rtl8169_hw_start().

Note that since rtl8169_eth_stop() does set the global variable, the
second consecutive attempt to use the "new" adapter did work even before
this patch, because each time network usage is shut down, the network
core calls stop, which sets the variable so that the next start does
actually initialize the hardware, and the adapter works.

Equally, rtl8169_eth_probe() calls rtl_init() which sets the global, so
if using only a single device, or if picking the "right" device (based on
probe order) when multiple devices are present, ioaddr will already be set
correctly from the get-go, so the issue does not occur.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-06-21 17:01:51 -05:00
Hans de Goede
9f823615af Kconfig: Add a new DISTRO_DEFAULTS Kconfig option
DISTRO_DEFAULTS is intended to mirror / replace
include/config_distro_defaults.h.

The intend is for boards which include this file to select this from
their Kconfig files and when moving setting to Kconfig which are #define-ed
in config_distro_defaults.h to select this from DISTRO_DEFAULTS so that
boards which have selected DISTRO_DEFAULTS will keep the same configuration
as before without needing any defconfig file changes.

The initial list of selected things matches all settings recently removed
from config_distro_defaults.h because they have been converted to Kconfig,
with the exception of CMD_ELF and CMD_NET, which have a default of y, if
the default of these ever changes they should be selected by DISTRO_DEFAULTS
too.

For testing and example purposes this commit also converts ARCH_SUNXI
to use DISTRO_DEFAULT instead of selecting everything it needs itself.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 21:30:13 -04:00
Chen-Yu Tsai
4257f5f8f6 sunxi: Add PSCI implementation in C
To make the PSCI backend more maintainable and easier to port to newer
SoCs, rewrite the current PSCI implementation in C.

Some inline assembly bits are required to access coprocessor registers.
PSCI stack setup is the only part left completely in assembly. In theory
this part could be split out of psci_arch_init into a separate common
function, and psci_arch_init could be completely in C.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
3424c3f299 sunxi: Add base address for GIC
Instead of hardcoding the GIC addresses in the PSCI implementation,
provide a base address in the cpu header.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
7579a3ec8c sunxi: Add CPUCFG debug lock and sun7i cpu power controls
CPUCFG has an unlisted debug control register, which is used to disable
external debug access.

Also, sun7i secondary core power controls are in CPUCFG, as there's no
separate PRCM block.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
20e3d05370 sunxi: Group cpu core related controls together
Instead of listing individual registers for controls to each processor
core, list them as an array of registers. This makes accessing controls
by core index easier.

Also rename "cpucfg_sun6i.h" (which was unused anyway) to the more generic
"cpucfg.h", and add packed attribute to struct sunxi_cpucfg.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
57c2a25572 sunxi: Add missing linux/types.h header for cpucfg_sun6i.h
cpucfg_sun6i.h includes a register definition for the CPUCFG register
block. The types used are u32 and u8, which are defined in linux/types.h.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
d7d4e5ccd6 sunxi: Add packed attribute to struct sunxi_prcm_reg
struct sunxi_prcm_reg is a representation of the PRCM registers. Add
the packed attribute to prevent the compiler from doing funny things.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
0f3b894426 sunxi: Make CPUCFG_BASE macro names the same across families
Use SUNXI_CPUCFG_BASE across all families. This makes writing common
PSCI code easier.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:44:00 +02:00
Chen-Yu Tsai
b56e06d343 ARM: allocate extra space for PSCI stack in secure section during link phase
The PSCI implementation expects at most 2 pages worth of space reserved
at the end of the secure section for its stacks. If PSCI is relocated to
secure SRAM, then everything is fine. If no secure SRAM is available,
and PSCI remains in main memory, the reserved memory space doesn't cover
the space used by the stack.

If one accesses PSCI after Linux has fully booted, the memory that should
have been reserved for the PSCI stacks may have been used by the kernel
or userspace, and would be corrupted. Observed after effects include the
system hanging or telinit core dumping when trying to reboot. It seems
the init process gets hit the most on my test bed.

This fix allocates the space used by the PSCI stacks in the secure
section by skipping pages in the linker script, but only when there is
no secure SRAM, to avoid bloating the binary.

This fix is only a stop gap. It would be better to rework the stack
allocation mechanism, maybe with proper usage of CONFIG_ macros and an
explicit symbol.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:43:59 +02:00
Chen-Yu Tsai
cbeeb2aebf ARM: PSCI: export common PSCI function declarations for C code
Some common PSCI functions are written in assembly, but it should be
possible to use them from C code.

Add function declarations for C code to consume.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:43:59 +02:00
Chen-Yu Tsai
778dc5f43e ARM: PSCI: save and restore clobbered registers in v7_flush_dcache_all
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:43:59 +02:00
Chen-Yu Tsai
dae08d2281 ARM: PSCI: use only r0 and r3 in psci_get_cpu_stack_top()
For psci_get_cpu_stack_top() to be usable in C code, it must adhere to
the ARM calling conventions. Since it could be called when the stack
is still unavailable, and the entry code to linux also expects r1 and
r2 to remain unchanged, stick to r0 and r3.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-06-20 22:43:59 +02:00
Hans de Goede
3da9536e8f sunxi: Revert "sunxi: make SoC variant choice mandatory"
This reverts commit 1a5f0de08e86("sunxi: make SoC variant choice
mandatory").

With the optional marking in the Kconfig "make savedefconfig"
will drop CONFIG_MACH_SUN4I=y from all the A10 boards, making it
hard to see at a glance which family of sunxi chips the defconfig
is for.

This commit therefore restores the optional, and restores
CONFIG_MACH_SUN4I=y to all defconfig's which had it dropped
because of this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2016-06-20 22:43:59 +02:00
Hans de Goede
3551b24f53 sunxi: Add defconfig and dts file for inet86dz board
The inet86dz board is a board used in 7" tablets from various oems.

These tablets are a23 based 7" tablets featuring a 1024x600 LCD,
512MB RAM, 4G NAND, rtl8188etv usb wifi, gsl1680 touchschreen,
micro-sd slot, 3.5mm headphone jack and a micro-usb otg connector
which doubles as charging port.

The dts file this commit adds is identical to the one submitted to
the upstream kernel.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2016-06-20 22:43:59 +02:00
Hans de Goede
cd38e3d1b4 sunxi: Add defconfig and dts file for Polaroid MID2407PXE03 tablet
The Polaroid MID2407PXE03 is an a23 based 7" tablet based on a M86_MB V2.0
PCB, featuring a 800x480 LCD, 512MB RAM, 4G NAND, esp8089 wifi, gsl1680
touchschreen, micro-sd slot, 3.5mm headphone jack and a micro-usb otg
connector which doubles as charging port.

The dts file is identical to the one submitted to the upstream kernel.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2016-06-20 22:43:59 +02:00
Hans de Goede
8c7d22965d sunxi: Select USE_TINY_PRINTF
This gives us a bit more breathing room wrt our SPL size.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-20 22:43:59 +02:00
Hans de Goede
da70b4d141 tinyprintf: Add vprintf implementation
vprintf is used by panic() which is used in various SPL paths on some
boards.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-20 22:43:58 +02:00
Tom Rini
46fd625dfe Prepare v2016.07-rc2
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-06-20 11:14:12 -04:00
Masahiro Yamada
41598c8251 autoboot: add CONFIG_AUTOBOOT to allow to not compile autoboot.c
Since commit bb597c0eeb ("common: bootdelay: move CONFIG_BOOTDELAY
into a Kconfig option"), CONFIG_BOOTDELAY is defined for all boards.

Prior to that commit, it was allowed to unset CONFIG_BOOTDELAY to
not compile common/autoboot.c, as described in common/Makefile:

  # This option is not just y/n - it can have a numeric value
  ifdef CONFIG_BOOTDELAY
  obj-y += autoboot.o
  endif

It was a bit odd to enable/disable code with an integer type option,
but it was how this option worked before that commit, and several
boards actually unset it to opt out of the autoboot feature.

This commit adds a new bool option, CONFIG_AUTOBOOT, and makes
CONFIG_BOOTDELAY depend on it.

I chose "default y" for this option because most boards use the
autoboot.  I added "# CONFIG_AUTOBOOT is not set" for the boards that
had not set CONFIG_BOOTDELAY prior to the bad commit.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-20 05:19:09 -04:00
Tom Rini
2313d48445 Merge git://git.denx.de/u-boot-nand-flash 2016-06-20 05:15:52 -04:00
Stefan Wahren
1a3619cf82 mmc: add MMC_VERSION_5_1
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
2016-06-20 05:14:46 -04:00
Mateusz Kulikowski
333463d669 dragonboard410c: Increase default environment size.
Due to changes in distro environment, ENV_SIZE limit was reached on Dragonboard.
This patch increases environment size to 8KiB.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
2016-06-20 05:14:33 -04:00
Tom Rini
09849f4a77 Merge git://git.denx.de/u-boot-dm 2016-06-20 05:14:01 -04:00
Boris Brezillon
30780f9483 mtd: nand: Patch remaining places where nand_to_mtd() should be used
Some drivers are still directly accessing the chip->mtd field. Patch
them to use nand_to_mtd() instead.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-06-19 19:28:38 -05:00
Fabian Mewes
caad0d00a8 nand: doc: fix example ecc scheme calculation
Signed-off-by: Fabian Mewes <architekt@coding4coffee.org>
2016-06-19 19:26:55 -05:00
Max Krummenacher
1866be7d28 nand: extend nand torture
nand torture currently works on exactly one nand block which is specified
by giving the byteoffset to the beginning of the block.

Extend this by allowing for a second parameter specifying the byte size
to be tested.

e.g.
==> nand torture 1000000

NAND torture: device 0 offset 0x1000000 size 0x20000 (block size 0x20000)
 Passed: 1, failed: 0

==> nand torture 1000000 40000

NAND torture: device 0 offset 0x1000000 size 0x40000 (block size 0x20000)
 Passed: 2, failed: 0

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
[scottwood: fix usage to show size as optional, and add misssing braces]
Signed-off-by: Scott Wood <oss@buserror.net>
2016-06-19 19:25:12 -05:00
Max Krummenacher
e1c29086d5 nand: nand torture: follow sync with linux v4.6
follow parameter name change (nand to mtd) to fix compiler error.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
2016-06-19 19:19:30 -05:00
Sergey Kubushyn
61717571f2 common: fb_nand: won't compile
Somehow this got overlooked when getting rid of nand_info.

Small patch, won't affect anything else, no reason to wait for the
next cycle.

Signed-off-by: Sergey Kubushyn <ksi@koi8.net>
2016-06-19 19:15:31 -05:00
Boris Brezillon
7748b41482 spl: nand: sunxi: add support for NAND config auto-detection
NAND chips are supposed to expose their capabilities through advanced
mechanisms like READID, ONFI or JEDEC parameter tables. While those
methods are appropriate for the bootloader itself, it's way to
complicated and takes too much space to fit in the SPL.

Replace those mechanisms by a dumb 'trial and error' mechanism.

With this new approach we can get rid of the fixed config list that was
used in the sunxi NAND SPL driver.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2016-06-19 19:12:02 -05:00
Boris Brezillon
4e7d1b3beb spl: nand: sunxi: split 'load page' and 'read page' logic
Split the 'load page' and 'read page' logic in 2 different functions so
we can later load the page and test different ECC configs without the
penalty of reloading the same page in the NAND cache.

We also move common setup to a dedicated function (nand_apply_config()) to
avoid rewriting the same values in NFC registers each time we read a page.

These new functions are passed a pointer to an nfc_config struct to limit
the number of parameters.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2016-06-19 19:12:01 -05:00
Boris Brezillon
bb9783b66b spl: nand: sunxi: rework status polling loop
check_value_xxx() helpers are using a 1ms delay between each test, which
can be quite long for some operations (like a page read on an SLC NAND).
Since we don't have anything to do but to poll this register, reduce the
delay between each test to 1us.

While we're at it, rename the max_number_of_retries parameters and the
MAX_RETRIES macro into timeout_us and DEFAULT_TIMEOUT_US to reflect that
we're actually waiting a given amount of time and not only a number of
retries.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2016-06-19 19:12:01 -05:00
Boris Brezillon
fa30115878 spl: nand: sunxi: stop guessing the redundant u-boot offset
Use CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND value instead of trying to guess
where the redundant u-boot image is based on simple (and most of the time
erroneous) heuristics.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>

# Conflicts:
#	drivers/mtd/nand/sunxi_nand_spl.c
2016-06-19 19:12:01 -05:00
Boris Brezillon
80ef700f8d spl: nand: support redundant u-boot image
On modern NAND it's more than recommended to have a backup copy of the
u-boot binary to recover from corruption: bitflips are quite common on
MLC NANDs, and the read-disturbance will corrupt your u-boot partitition
more quickly than what you would see on an SLC NAND.

Add an extra Kconfig option to specify the offset of the redundant u-boot
image.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
[scottwood: added ifdef to fix build break]
Signed-off-by: Scott Wood <oss@buserror.net>
2016-06-19 19:11:57 -05:00
Boris Brezillon
494e108651 spl: nand: rework SYS_NAND_U_BOOT_OFFS Kconfig option dependency
The SYS_NAND_U_BOOT_OFFS is quite generic, but the Kconfig entry is forced
to explicitly depend on platforms that are not already defining it in their
include/configs/<board>.h header.

Add the SYS_NAND_U_BOOT_LOCATIONS option, make the SYS_NAND_U_BOOT_OFFS
depends on it, remove the dependency on NAND_SUNXI and make it dependent
on SPL selection.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2016-06-19 19:11:48 -05:00
Boris Brezillon
c4adf9db5d spl: nand: sunxi: remove support for so-called 'syndrome' mode
The sunxi SPL NAND controller driver supports use 'BootROM'-like configs,
that is, configs where the ECC bytes and real data are interleaved in the
page instead of putting ECC bytes in the OOB area.

Doing that has several drawbacks:
- since you're interleaving data and ECC bytes you can't use the whole page
  otherwise you might override the bad block marker with non-FF bytes.
- to solve the bad block marker problem, the ROM code supports partially
  using the page, but this introduces a huge penalty both in term of read
  speed and NAND memory usage. While this is fine for rather small
  binaries(like the SPL one which is at maximum 24KB large), it becomes
  non-negligible for the bootloader image (several hundred of KB).
- auto-detection of the page size is not reliable (this is in my opinion
  the biggest problem). If you get the page size wrong, you'll end up
  reading data at a different offset than what was specified by the caller
  and the reading may succeed (if valid data were written at this address).

For all those reasons I think it's wiser to completely remove support for
'syndrome' configs. If we ever need to support it again, then I'd recommend
specifying all the config parameters through Kconfig options.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2016-06-19 18:52:35 -05:00
Stephen Warren
135aa95002 clk: convert API to match reset/mailbox style
The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
  provider now implements a single set of clocks. This provides a simpler
  conceptual interface to clients, and better aligns with device tree
  clock bindings.
* Clocks are now identified with a single "struct clk", rather than
  requiring clients to store the clock provider device and clock identity
  values separately. For simple clock consumers, this isolates clients
  from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
  clk-uclass.h contains the provider API. This aligns with the recently
  added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
  can customize these operations if needed. This also aligns with the
  recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
  clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.

Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.

test/py passes for sandbox (which invokes the dm clk test amongst
others).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-06-19 17:05:55 -06:00
Stephen Warren
4581b717b1 reset: implement a reset test
This adds a sandbox reset implementation (provider), a test client
device, instantiates them both from Sandbox's DT, and adds a DM test
that excercises everything.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-06-19 17:05:55 -06:00