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board/ti/am335x: add support for beaglebone NOR Cape

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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>
This commit is contained in:
pekon gupta
2014-07-22 16:03:21 +05:30
committed by Tom Rini
parent 85eb0de214
commit 3df3bc1e1d
2 changed files with 48 additions and 60 deletions
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13
doc/README.cfi
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@@ -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