u-boot.git/drivers/misc, branch v2015.01

i2c_eeprom: include to fix build error

2015-01-06T00:45:15+00:00

drivers/misc/i2c_eeprom.c fails to build unless CONFIG_FIT_SIGNATURE
is defined.

  CC      drivers/misc/i2c_eeprom.o
drivers/misc/i2c_eeprom.c: In function 'i2c_eeprom_read':
drivers/misc/i2c_eeprom.c:15:10: error: 'ENODEV' undeclared
(first use in this function)
drivers/misc/i2c_eeprom.c:15:10: note: each undeclared identifier
is reported only once for each function it appears in
drivers/misc/i2c_eeprom.c: In function 'i2c_eeprom_write':
drivers/misc/i2c_eeprom.c:21:10: error: 'ENODEV' undeclared
(first use in this function)
drivers/misc/i2c_eeprom.c:22:1: warning: control reaches end of
non-void function [-Wreturn-type]
drivers/misc/i2c_eeprom.c: In function 'i2c_eeprom_read':
drivers/misc/i2c_eeprom.c:16:1: warning: control reaches end of
non-void function [-Wreturn-type]
make[2]: *** [drivers/misc/i2c_eeprom.o] Error 1
make[1]: *** [drivers/misc] Error 2
make: *** [drivers] Error 2

By the way, Sandbox (enabling CONFIG_FIT_SIGNATURE) is luckily
working depending on it.
Sandbox includes include/asm-generic/errno.h
            from include/errno.h
            from include/u-boot/rsa-checksum.h
            from include/image.h
            from include/common.h
            from drivers/misc/i2c_eeprom.c

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass

x86: Add a simple superio driver for SMSC LPC47M

2014-12-14T05:32:05+00:00

On most x86 boards, the legacy serial ports (io address 0x3f8/0x2f8)
are provided by a superio chip connected to the LPC bus. We must
program the superio chip so that serial ports are available for us.

Signed-off-by: Bin Meng 
Acked-by: Simon Glass

dm: Add a simple EEPROM driver

2014-12-11T20:18:43+00:00

There seem to be a few EEPROM drivers around - perhaps we should have a
single standard one? This simple driver is used for sandbox testing, but
could be pressed into more active service.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher 
Reviewed-by: Masahiro Yamada

dm: i2c: Add an I2C EEPROM simulator

2014-12-11T20:18:42+00:00

To enable testing of I2C, add a simple I2C EEPROM simulator for sandbox.
It supports reading and writing from a small data store.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher 
Reviewed-by: Masahiro Yamada

mxc_ocotp: Do not disable the OCOTP clock after every access

2014-12-01T09:20:19+00:00

Leave the OCOTP turned on, so that we subsequent access do not fail.

After enabling the thermal driver on a mx6sxsabresd board:

U-Boot 2015.01-rc1-18267-g99d4189-dirty (Nov 24 2014 - 12:59:01)

CPU:   Freescale i.MX6SX rev1.0 at 792 MHz
CPU:   Temperature 48 C
Reset cause: POR
Board: MX6SX SABRE SDB
I2C:   ready
DRAM:  1 GiB
PMIC:  PFUZE100 ID=0x10
MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
  00:01.0     - 16c3:abcd - Bridge device
   01:00.0    - 8086:08b1 - Network controller
In:    serial
Out:   serial
Err:   serial
Net:
(hang)

As the thermal driver accesses the ocotp registers, its clock will be disabled
afterwards.

Then when the MAC address is read (also from ocotp registers) it will cause a
hang.

Do not disable the ocotp clock to prevent this problem.

Signed-off-by: Fabio Estevam 
Reviewed-by: Benoît Thébaudeau

mxs_ocotp: clear the error flag before initiating write operation

2014-12-01T09:19:42+00:00

A previous operation may have set the error flag, which must be cleared
before a new write operation can be issued.

Signed-off-by: Hector Palacios

mxs_ocotp: check for errors from the OTP controller after writing

2014-12-01T09:19:41+00:00

The write operation may fail when trying to write to a locked area. In
this case the ERROR bit is set in the CTRL register. Check for that
condition and return an error.

Signed-off-by: Hector Palacios 
Reviewed-by: Fabio Estevam

mxs_ocotp: prevent error path from returning success

2014-12-01T09:19:41+00:00

The code may goto 'fail' upon error with 'ret' variable set to an error
code, but this variable was being overwritten by a final preparation
function to restore the HCLK, so success was (in general) returned even
after an error was hit previously.

With this change, the function may now return success even if the final
preparation function fails, but it's probably enough to print a message
because (if successful) the real programming of the fuses has already
completed.

Signed-off-by: Hector Palacios

Merge git://git.denx.de/u-boot-dm

2014-11-24T17:01:48+00:00

Conflicts:
	drivers/serial/serial-uclass.c

Signed-off-by: Tom Rini

linux/kernel.h: sync min, max, min3, max3 macros with Linux

2014-11-23T11:48:30+00:00

U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does.  This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.

Many of references of those macros must be fixed to suppress warnings.
We have two options:
 - Use min, max, min3, max3 only when the arguments have the same type
   (or add casts to the arguments)
 - Use min_t/max_t instead with the appropriate type for the first
   argument

Signed-off-by: Masahiro Yamada 
Acked-by: Pavel Machek 
Acked-by: Lukasz Majewski 
Tested-by: Lukasz Majewski 
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini