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authorWolfgang Denk <wd@denx.de>2012-02-13 23:15:25 +0100
committerWolfgang Denk <wd@denx.de>2012-02-13 23:15:25 +0100
commite9d44b35beb45869863f3ca6929089d9df4df3e5 (patch)
tree4382c3c41c944e23dc846393e52275b63d302ba3 /README
parent06576b2efcf3d67797437488e90e989b8b48c9f2 (diff)
parentf61ec45eb5ad819520396f91385ef3855059c1dd (diff)
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Merge branch 'sf' of git://git.denx.de/u-boot-blackfin
* 'sf' of git://git.denx.de/u-boot-blackfin: README: Add description of SPI Flash (SF) command configuration sf command: allow default bus and chip selects sf: eeprom_m95xxx: set a sane default timeout sf: eeprom_m95xxx: fix up style
Diffstat (limited to 'README')
-rw-r--r--README20
1 files changed, 20 insertions, 0 deletions
diff --git a/README b/README
index b6c9d0b..eba6378 100644
--- a/README
+++ b/README
@@ -815,6 +815,7 @@ 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
@@ -2197,6 +2198,25 @@ 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