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| author |   Alessandro Zummo <a.zummo@towertech.it> | 2006-03-20 17:10:10 +0000 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2006-03-21 22:06:08 +0000 |
| commit | 03bd14c4b7fa535c78f17751172dbe8937729f05 (patch) | |
| tree | 158821512b54134a0f3a4927142858e1e424a88f /include/asm-arm/arch-ixp4xx | |
| parent | [ARM] 3346/1: Fix udelay() for HZ values different from 100 (diff) | |
| download | linux-dev-03bd14c4b7fa535c78f17751172dbe8937729f05.tar.xz linux-dev-03bd14c4b7fa535c78f17751172dbe8937729f05.zip | |
[ARM] 3349/1: ixp4xx exp bus defines
Patch from Alessandro Zummo
This patch adds a few defines that are useful
to configure the CS regions on ixp4xx.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: OEyvind Repvik <oyvind@repvik.org>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-ixp4xx')
| -rw-r--r-- | include/asm-arm/arch-ixp4xx/platform.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h index daf9790645ca..13aee17b0475 100644 --- a/include/asm-arm/arch-ixp4xx/platform.h +++ b/include/asm-arm/arch-ixp4xx/platform.h @@ -38,6 +38,33 @@ extern unsigned long ixp4xx_exp_bus_size; #define IXP4XX_EXP_BUS_BASE(region)\ (IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size)) +#define IXP4XX_EXP_BUS_END(region)\ + (IXP4XX_EXP_BUS_BASE(region) + ixp4xx_exp_bus_size - 1) + +/* Those macros can be used to adjust timing and configure + * other features for each region. + */ + +#define IXP4XX_EXP_BUS_RECOVERY_T(x) (((x) & 0x0f) << 16) +#define IXP4XX_EXP_BUS_HOLD_T(x) (((x) & 0x03) << 20) +#define IXP4XX_EXP_BUS_STROBE_T(x) (((x) & 0x0f) << 22) +#define IXP4XX_EXP_BUS_SETUP_T(x) (((x) & 0x03) << 26) +#define IXP4XX_EXP_BUS_ADDR_T(x) (((x) & 0x03) << 28) +#define IXP4XX_EXP_BUS_SIZE(x) (((x) & 0x0f) << 10) +#define IXP4XX_EXP_BUS_CYCLES(x) (((x) & 0x03) << 14) + +#define IXP4XX_EXP_BUS_CS_EN (1L << 31) +#define IXP4XX_EXP_BUS_BYTE_RD16 (1L << 6) +#define IXP4XX_EXP_BUS_HRDY_POL (1L << 5) +#define IXP4XX_EXP_BUS_MUX_EN (1L << 4) +#define IXP4XX_EXP_BUS_SPLT_EN (1L << 3) +#define IXP4XX_EXP_BUS_WR_EN (1L << 1) +#define IXP4XX_EXP_BUS_BYTE_EN (1L << 0) + +#define IXP4XX_EXP_BUS_CYCLES_INTEL 0x00 +#define IXP4XX_EXP_BUS_CYCLES_MOTOROLA 0x01 +#define IXP4XX_EXP_BUS_CYCLES_HPI 0x02 + #define IXP4XX_FLASH_WRITABLE (0x2) #define IXP4XX_FLASH_DEFAULT (0xbcd23c40) #define IXP4XX_FLASH_WRITE (0xbcd23c42) |