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authorpekon gupta <pekon@ti.com>2014-07-22 16:03:21 +0530
committerTom Rini <trini@ti.com>2014-08-25 10:47:56 -0400
commit3df3bc1e1dc4c38de93d66fb589565f36d9749c7 (patch)
treed3aab8a59d9277222ccfc2a7d0cd174ff9d80677 /doc
parent85eb0de2147307eaf70f21f59e805fc9a3585550 (diff)
downloadblackbird-obmc-uboot-3df3bc1e1dc4c38de93d66fb589565f36d9749c7.tar.gz
blackbird-obmc-uboot-3df3bc1e1dc4c38de93d66fb589565f36d9749c7.zip
board/ti/am335x: add support for beaglebone NOR Cape
This patch adds support of NOR cape[1] for both Beaglebone (white) and Beaglebone(Black) boards. NOR Flash on this cape is connected to GPMC chip-select[0] and accesses as external memory-mapped device. This cape has 128Mbits(16MBytes), x16, CFI compatible NOR Flash device. As GPMC chip-select[0] can be shared by multiple capes so NOR profile is not enabled by default in boards.cfg. Following changes are required to enable NOR cape detection when building am335x_boneblack board profile. Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/README.cfi13
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/README.cfi b/doc/README.cfi
index d087ff0d63..81e7cf1d7e 100644
--- a/doc/README.cfi
+++ b/doc/README.cfi
@@ -27,3 +27,16 @@ void flash_cmd_reset(flash_info_t *info)
see also:
http://www.mail-archive.com/u-boot@lists.denx.de/msg24368.html
+
+
+Config Option
+
+ CONFIG_SYS_MAX_FLASH_SECT: Number of sectors available on Flash device
+
+ CONFIG_SYS_FLASH_CFI_WIDTH: Data-width of the flash device
+
+ CONFIG_CMD_FLASH: Enables Flash command library
+
+ CONFIG_FLASH_CFI_DRIVER: Enables CFI Flash driver
+
+ CONFIG_FLASH_CFI_MTD: Enables MTD frame work for NOR Flash devices
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