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| author | pekon gupta <pekon@ti.com> | 2014-05-08 21:43:47 +0530 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-05-23 19:39:36 -0400 |
| commit | a0a37183bd75e74608bc78c8d0e2a34454f95a91 (patch) | |
| tree | b9505eae7d21e6c518e94011fd115ec14e30bcea /arch/arm/include/asm/arch-omap3 | |
| parent | cd324a6dd252856fa55bd17d539a9466ae86411a (diff) | |
| download | talos-obmc-uboot-a0a37183bd75e74608bc78c8d0e2a34454f95a91.tar.gz talos-obmc-uboot-a0a37183bd75e74608bc78c8d0e2a34454f95a91.zip | |
ARM: omap: merge GPMC initialization code for all platform
GPMC controller on TI's OMAP SoC is general purpose controller to interface
with different types of external devices like;
- parallel NOR flash
- parallel NAND flash
- OneNand flash
- SDR RAM
- Ethernet Devices like LAN9220
Though GPMC configurations may be different for each platform depending on
clock-frequency and external device interfacing with controller. But
initialization sequence remains common across all platfoms.
Thus this patch merges gpmc_init() scattered in different arch-xx/mem.c
files into single omap-common/mem-common.c
However, actual platforms specific register config values are still sourced
from corresponding platform specific headers like;
AM33xx: arch/arm/include/asm/arch-am33xx/mem.h
OMAP3: arch/arm/include/asm/arch-omap3/mem.h
OMAP4: arch/arm/include/asm/arch-omap4/mem.h
OMAP4: arch/arm/include/asm/arch-omap5/mem.h
Also, CONFIG_xx passed by board-profile decide config for which set of macros
need to be used for initialization
CONFIG_NAND: initialize GPMC for NAND device
CONFIG_NOR: initialize GPMC for NOR device
CONFIG_ONENAND: initialize GPMC for ONENAND device
Signed-off-by: Pekon Gupta <pekon@ti.com>
[trini: define GPMC_SIZE_256M for omap3]
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/include/asm/arch-omap3')
| -rw-r--r-- | arch/arm/include/asm/arch-omap3/mem.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-omap3/mem.h b/arch/arm/include/asm/arch-omap3/mem.h index 18041913c4..bdb1435291 100644 --- a/arch/arm/include/asm/arch-omap3/mem.h +++ b/arch/arm/include/asm/arch-omap3/mem.h @@ -344,6 +344,7 @@ enum { * MAP - Map this CS to which address(GPMC address space)- Absolute address * >>24 before being used. */ +#define GPMC_SIZE_256M 0x0 #define GPMC_SIZE_128M 0x8 #define GPMC_SIZE_64M 0xC #define GPMC_SIZE_32M 0xE |
