u-boot.git/drivers/mtd, branch v2016.05-rc2

mtd: cfi: Unlock current sector instead of sector 0 before buffered write

2016-04-13T11:43:37+00:00

Unlock current sector instead of sector 0 before buffered write.

[Patch subject and commit text slightly reworded, Stefan]

Signed-off-by: Rouven Behr 
Signed-off-by: Stefan Roese

stm32: stm32_flash: add memory barrier during flash write

2016-04-12T00:48:23+00:00

After writing data to flash space, next instruction is checking if flash
controller is busy writing to the flash memory. Memory barrier is required here
to avoid transaction re-ordering for data write and busy status check.

Signed-off-by: Vikas Manocha

drivers: remove writes{b,w,l,q} and reads{b,w,l,q}.

2016-04-10T15:18:41+00:00

Definition of writes{bwlq}, reads{bwlq} are now added into arch specific
asm/io.h. So removing them from driver to fix re-definition error

Signed-off-by: Purna Chandra Mandal

kirkwood_nand: claim MPP pins on the fly

2016-04-06T13:40:33+00:00

Claim the MPP pins for the NAND flash controller only when it's actually
being used. This allows the pins to be shared with the SPI interface
which already supports an equivalent on-access MPP reconfiguration.

Reviewed-by: Mark Tomlinson 
Signed-off-by: Chris Packham 
Acked-by: Scott Wood 
Signed-off-by: Stefan Roese

mtd: nand: denali: max_banks calculation changed in revision 5.1

2016-03-31T15:16:55+00:00

Read Denali hardware revision number and use it to
calculate max_banks,  The encoding of max_banks changed
in Denali revision 5.1.

[ Linux commit : 271707b1d817f5104e02b2bd1bab43f0c8759418 ]

Signed-off-by: Graham Moore 
[Brian: parentheses around macro arg]
Signed-off-by: Brian Norris 
[Masahiro: import from Linux and adjust ioread32() to readl() ]
Signed-off-by: Masahiro Yamada

cfi_flash: return device into read array mode after reading status

2016-03-27T13:13:02+00:00

Otherwise flash remains in read status mode and it's not possible
to access data on flash.

Signed-off-by: Vasily Khoruzhick 
Acked-by: Stefan Roese

stm32: stm32f4: move flash driver to mtd driver location

2016-03-26T22:49:28+00:00

Same flash driver can be used by other stm32 families like stm32f7.
Better place for this driver would be mtd driver location.

Signed-off-by: Vikas Manocha

mtd: denali: fix warning when compiled for 64bit system

2016-03-23T16:36:49+00:00

The 64-bit compiler (ex. aarch64) emits "warning: cast from pointer
to integer of different size".

Make it work with 64bit DMA address while I am here.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Tom Rini

sf: Correct data types in stm_is_locked_sr()

2016-03-12T14:25:42+00:00

The stm_is_locked_sr() function is picked from Linux kernel. For reason
unknown, the 64bit data types used by the function and present in Linux
were replaced with 32bit unsigned ones, which causes trouble.

The testcase performed was done using ST M25P80 chip.
The command used was:
 => sf protect unlock 0 0x10000

The call chain starts in stm_unlock(), which calls stm_is_locked_sr()
with negative ofs argument. This works fine in Linux, where the "ofs"
is loff_t, which is signed long long, while this fails in U-Boot, where
"ofs" is u32 (unsigned int). Because of this signedness problem, the
expression past the return statement to be incorrectly evaluated to 1,
which in turn propagates back to stm_unlock() and results in -EINVAL.

The correction is very simple, just use the correctly sized data types
with correct signedness in the function to make it work as intended.

Signed-off-by: Marek Vasut 
Cc: Simon Glass 
Reviewed-by: Jagan Teki

spi: Correct two error return values

2016-02-26T15:53:10+00:00

When an error number is provided we should use it, not change it. This fixes
the SPI and SPI flash tests.

One of these is long-standing. The other seems to have been introduced by
commit 1e90d9fd (sf: Move read_id code to sf_ops).

Signed-off-by: Simon Glass 
Fixes: 1e90d9fd (sf: Move read_id code to sf_ops)
Reviewed-by: Jagan Teki 
Tested-by: Jagan Teki