u-boot.git/include/spi_flash.h, branch v2013.07

sf: Add flag status register polling support

2013-06-23T16:32:51+00:00

Flag status register polling is required for micron 512Mb flash
devices onwards, for performing erase/program operations.

Like polling for WIP(Write-In-Progress) bit in read status register,
spi_flash_cmd_wait_ready will poll for PEC(Program-Erase-Control)
bit in flag status register.

Signed-off-by: Jagannadha Sutradharudu Teki 
Reviewed-by: Simon Glass

sf: Add bank addr code in CONFIG_SPI_FLASH_BAR

2013-06-23T16:32:50+00:00

Defined bank addr code on CONFIG_SPI_FLASH_BAR macro, to reduce the
size for existing boards which has < 16Mbytes SPI flashes.

It's upto user which has provision to use the bank addr code for
flashes which has > 16Mbytes.

Signed-off-by: Jagannadha Sutradharudu Teki 
Reviewed-by: Simon Glass

sf: Read flash bank addr register at probe time

2013-06-23T16:32:50+00:00

Read the flash bank addr register to get the state of bank in
a perticular flash. and also bank write happens only when there is
a change in bank selection from user.

bank read only valid for flashes which has > 16Mbytes those are
opearted in 3-byte addr mode, each bank occupies 16Mytes.

Suppose if the flash has 64Mbytes size consists of 4 banks like
bank0, bank1, bank2 and bank3.

Signed-off-by: Jagannadha Sutradharudu Teki 
Reviewed-by: Simon Glass

sf: Discover the bank addr commands

2013-06-23T16:32:49+00:00

Bank/Extended addr commands are specific to particular
flash vendor so discover them based on the idocode0.

Assign the discovered bank commands to spi_flash members
so-that the bank read/write will use their specific operations.

Signed-off-by: Jagannadha Sutradharudu Teki

sf: Enable FDT-based configuration and memory mapping

2013-03-19T15:45:37+00:00

Enable device tree control of SPI flash, and use this to implement
memory-mapped SPI flash, which is supported on Intel chips.

Signed-off-by: Simon Glass

sf: Add spi_flash_alloc() to create a new SPI flash struct

2013-03-19T15:45:36+00:00

At present it is difficult to extend the SPI flash structure since
all devices allocate it themselves, and few of them zero all fields.
Add a new function spi_flash_alloc() which can be used by SPI devices
to perform this allocation, and thus ensure that all devices can
better cope with SPI structure changes.

Signed-off-by: Simon Glass

sf: Add spi_boot() to allow booting from SPI flash in an SPL

2011-12-24T09:23:30+00:00

Signed-off-by: Christian Riesch 
Cc: Heiko Schocher 
Cc: Mike Frysinger 
Cc: Scott Wood 
Acked-by: Mike Frysinger

sf: unify write funcs

2011-07-26T14:29:27+00:00

Once we add a new page_size field for write lengths, we can unify the
write methods for most of the spi flash drivers.

Signed-off-by: Mike Frysinger

sf: add struct spi_flash.sector_size parameter

2011-04-12T06:15:37+00:00

This patch adds a new member to struct spi_flash (u16 sector_size)
and updates the spi flash drivers to start populating it.

This parameter can be used by spi flash commands that need to round
up units of operation to the flash's sector_size.

Having this number in one place also allows duplicated code to be
further collapsed into one common location (such as erase parameter
and the detected message).

Signed-off-by: Richard Retanubun 
Signed-off-by: Mike Frysinger

sf: punt unused spi_flash_region struct

2011-04-12T03:40:59+00:00

Signed-off-by: Mike Frysinger