Commit f61ec45e authored by Eric Nelson's avatar Eric Nelson Committed by Mike Frysinger

README: Add description of SPI Flash (SF) command configuration

Acked-by: default avatarJason Liu <jason.hui@linaro.org>
Signed-off-by: default avatarEric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent c1173bd0
......@@ -809,6 +809,7 @@ The following options need to be configured:
(requires CONFIG_CMD_I2C)
CONFIG_CMD_SETGETDCR Support for DCR Register access
(4xx only)
CONFIG_CMD_SF * Read/write/erase SPI NOR flash
CONFIG_CMD_SHA1SUM print sha1 memory digest
(requires CONFIG_CMD_MEMORY)
CONFIG_CMD_SOURCE "source" command Support
......@@ -2191,6 +2192,25 @@ The following options need to be configured:
allows to read/write in Dataflash via the standard
commands cp, md...
- Serial Flash support
CONFIG_CMD_SF
Defining this option enables SPI flash commands
'sf probe/read/write/erase/update'.
Usage requires an initial 'probe' to define the serial
flash parameters, followed by read/write/erase/update
commands.
The following defaults may be provided by the platform
to handle the common case when only a single serial
flash is present on the system.
CONFIG_SF_DEFAULT_BUS Bus identifier
CONFIG_SF_DEFAULT_CS Chip-select
CONFIG_SF_DEFAULT_MODE (see include/spi.h)
CONFIG_SF_DEFAULT_SPEED in Hz
- SystemACE Support:
CONFIG_SYSTEMACE
......
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