state: check return value of of_property_count_strings ...

When a enum32 state variable node does not have a "names" property bail
out instead of continuing with an error value used as number of strings.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

state: write names in enum32 variables to oftree again ...

Commit 179b75a (state: fixup: only export default value during
fixup if set) accidently removed writing the enum32 value names
to the device tree. Add it back again

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>

of_fix_tree: do not fail when fixup fails ...

When a device tree fixup fails it is worth printing a warning, but
we should not fail booting.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

passwd: avoid NULL ptr usage ...

Fixes
common/password.c: In function 'check_passwd':
common/password.c:292:4: warning: reading through null pointer (argument 3)
    pr_err("No such digest: %s\n", PASSWD_SUM);

if no algo is enabled in which case PASSWD_SUM is defined to NULL.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of_fix_tree: Print error message ...

When a of_fixup handler fails add a meaningful error message so
that the user gets a clue what might have gone wrong.

Suggested-by: Enrico Joerns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/restart'

reset-source: Add some debugging aids ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

login: explain PASSWORD_DEFAULT option ...

This option looks like it takes the default password, but instead
it takes a filename of a file which contains the password encoded
with the selected password digest.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

crypto: fix selecting of digests ...

SHA1 is meant as a boolean option which is true when sha1 support is available.
This works because the providers (DIGEST_SHA1_GENERIC and DIGEST_SHA1_ARM) have
a 'select SHA1'. However, consumers like the sha1sum command do a 'select SHA1'
to enable SHA1 support. This of course does not work; selecting SHA1 will not
select any of the SHA1 providers.

This is broken for all digest consumers. We have to explicitly select a digest
provider, that is DIGEST_*_GENERIC to enable the corresponding digest.

This means now we will always have the generic digest in the binary, even
when an optimized one is enabled. There is no sane way in Kconfig to
"select provider for feature xy", so let's live with the overhead in the binary.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

login: check return value of digest_alloc ...

digest_alloc can fail, check the return value.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

login: cleanup password code ...

- make some locally used functions static
- remove read_passwd which is unused
- some refactoring to make code pathes clearer

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

login: rework login mechanism ...

We used to have the login functionality in the /env/bin/init script.
This is hard to review and it's too easy to break the login functionality
with changes to this script. Move the places to ask for a password to
C code where we have only a few places where we have to ask for a password.
Mainly these are run_shell() and the menutree command.

This patch introduces a login() function which will only return if the correct
password has been entered. Following calls will return immediately without
asking for a password again.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

reset-source: Allow different priorities ...

Different devices may report the reset source with different levels
of certainty. For example a SoC may see a power-on reset, but this
may only be because an external PMIC has power cycled the SoC. This
means the PMIC knows the real reason better and thus the reset reason
from the PMIC should be preferred.

This patch introduces priorities for the reset_source to handle the
above scenario. Also add a of_get_reset_source_priority() function
to retrieve the desired priority from the device tree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

reset-source: Use globalvar_add_simple_enum ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

restart: replace reset_cpu with registered restart handlers ...

This replaces the reset_cpu() function which every SoC or board must
provide with registered handlers. This makes it possible to have multiple
reset functions for boards which have multiple ways to reset the machine.
Also boards which have no way at all to reset the machine no longer
have to provide a dummy reset_cpu() function.

The problem this solves is that some machines have external PMICs or
similar to reset the system which have to be preferred over the
internal SoC reset, because the PMIC can reset not only the SoC but also
the external devices.

To pick the right way to reset a machine each handler has a priority. The
default priority is 100 and all currently existing restart handlers are
registered with this priority. of_get_restart_priority() allows to retrieve
the priority from the device tree which makes it possible for boards to
give certain restart handlers a higher priority in order to use this one
instead of the default one.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

completion: fix device parameter completion ...

With device parameter completion the '.' separator between the device
name and the parameter was not handled correctly. For example with
a device named global a completion starting with "g." was completed to
"g.obal.". fix this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/spd'

Merge branch 'for-next/misc'

Merge branch 'for-next/imx'

Merge branch 'for-next/exitcall'

state: fix missing newline in error message ...

Signed-off-by: Jan Luebbe <jluebbe@debian.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

state: handle write-protection in the raw backend ...

Signed-off-by: Jan Luebbe <jluebbe@debian.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

PBL: console: Make independent of DEBUG_LL ...

With more stuff being done in PBL regular console support gets more and more
useful. This makes the PBL console independent of DEBUG_LL which is only
meant for early debugging but not regular output.
To use the regular PBL console a board must call pbl_set_putc() which stores
a pointer to the putc function to be used.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: use an EFI variable to save the environment ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: write volatile EFI variables used by systemd ...

LoaderTimeInitUSec and LoaderTimeExecUSec are used e.g. in systemd-analyze
to calculate the time spent in the firmare and barebox.

LoaderDevicePartUUID is used to mount the EFI partition to /boot.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: add helper to get the GPT partition UUID for a device ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drop <stddef.h> includes ...

The compilers stddef.h should not be included. We declare all types
ourselves.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

console: When deactivating a console, flush it first ...

Otherwise the last characters may not be sent before deactivating
a console.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memsize: Compile for PBL aswell ...

Detecting the memory size is a domain for PBL, so compile it for PBL
aswell.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ddr_spd: add routine for printing DDR2 SPD contents in human-readable format ...

---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62                    OK (0xDF)
Total number of bytes in EEPROM                  256
Fundamental Memory type                          DDR2 SDRAM
SPD Revision                                     1.2

---=== Memory Characteristics ===---
Maximum module speed                             800 MHz (PC2-6400)
Size                                             2048 MB
Banks x Rows x Columns x Bits                    8 x 14 x 10 x 64
Ranks                                            2
SDRAM Device Width                               8 bits
Module Height                                    30.0 mm
Module Type                                      SO-DIMM (67.6 mm)
DRAM Package                                     Planar
Voltage Interface Level                          SSTL 1.8V
Module Configuration Type                        No Parity
Refresh Rate                                     Reduced (7.8 us) - Self Refresh
Supported Burst Lengths                          4, 8
Supported CAS Latencies (tCL)                    6T
tCL-tRCD-tRP-tRAS                                6-6-6-18 as DDR2-800
Minimum Cycle Time                               2.5 ns at CAS 6
Maximum Access Time                              0.40 ns at CAS 6
Maximum Cycle Time (tCK max)                     8 ns

---=== Timing Parameters ===---
Address/Command Setup Time Before Clock (tIS)    0.17 ns
Address/Command Hold Time After Clock (tIH)      0.25 ns
Data Input Setup Time Before Strobe (tDS)        0.05 ns
Data Input Hold Time After Strobe (tDH)          0.12 ns
Minimum Row Precharge Delay (tRP)                15.00 ns
Minimum Row Active to Row Active Delay (tRRD)    7.50 ns
Minimum RAS# to CAS# Delay (tRCD)                15.00 ns
Minimum RAS# Pulse Width (tRAS)                  45.00 ns
Write Recovery Time (tWR)                        15.00 ns
Minimum Write to Read CMD Delay (tWTR)           7.50 ns
Minimum Read to Pre-charge CMD Delay (tRTP)      7.50 ns
Minimum Active to Auto-refresh Delay (tRC)       60.00 ns
Minimum Recovery Delay (tRFC)                    127 ns
Maximum DQS to DQ Skew (tDQSQ)                   0.20 ns
Maximum Read Data Hold Skew (tQHS)               0.30 ns

---=== Manufacturing Information ===---
Manufacturer JEDEC ID                            7f 98 00 00 00 00 00 00
Manufacturing Location Code                      0x05
Part Number
Manufacturing Date                               2014-W47
Assembly Serial Number                           0x43266892

Signed-off-by: Alexander Smirnov <alllecs@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>