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| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2012-01-31 10:52:08 -0700 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2012-02-12 15:18:29 -0500 |
| commit | f61ec45eb5ad819520396f91385ef3855059c1dd (patch) | |
| tree | 90dd43a511137b4d4361cb5eda0eac8820e0fd7c /README | |
| parent | c1173bd0754aa55bc52d874d5490c0c892a56ebf (diff) | |
| download | u-boot-f61ec45eb5ad819520396f91385ef3855059c1dd.tar.gz u-boot-f61ec45eb5ad819520396f91385ef3855059c1dd.tar.bz2 u-boot-f61ec45eb5ad819520396f91385ef3855059c1dd.zip | |
README: Add description of SPI Flash (SF) command configuration
Acked-by: Jason Liu <jason.hui@linaro.org>
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -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 |