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| author | pekon gupta <pekon@ti.com> | 2014-07-18 17:59:40 +0530 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-07-25 16:26:12 -0400 |
| commit | 77cd89e75563742aa32cf3d216ac9ff649d1d70e (patch) | |
| tree | 3d406770cd972f2ef88bec049ed48025cde1e831 /arch/arm/include/asm/arch-am33xx | |
| parent | 8c16dd6fa7de448b36778275b456bf4ea53c3306 (diff) | |
| download | talos-obmc-uboot-77cd89e75563742aa32cf3d216ac9ff649d1d70e.tar.gz talos-obmc-uboot-77cd89e75563742aa32cf3d216ac9ff649d1d70e.zip | |
ARM: omap: fix GPMC address-map size for NAND and NOR devices
Fixes commit a0a37183bd75e74608bc78c8d0e2a34454f95a91
ARM: omap: merge GPMC initialization code for all platform
1) NAND device are not directly memory-mapped to CPU address-space, they are
indirectly accessed via following GPMC registers:
- GPMC_NAND_COMMAND_x
- GPMC_NAND_ADDRESS_x
- GPMC_NAND_DATA_x
Therefore from CPU's point of view, NAND address-map can be limited to just
above register addresses. But GPMC chip-select address-map can be configured
in granularity of 16MB only.
So this patch uses GPMC_SIZE_16M for all NAND devices.
2) NOR device are directly memory-mapped to CPU address-space, so its
address-map size depends on actual addressable region in NOR FLASH device.
So this patch uses CONFIG_SYS_FLASH_SIZE to derive GPMC chip-select address-map
size configuration.
Signed-off-by: Pekon Gupta <pekon@ti.com>
Diffstat (limited to 'arch/arm/include/asm/arch-am33xx')
0 files changed, 0 insertions, 0 deletions
