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[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>
This commit is contained in:
Alessandro Zummo 2006-03-20 17:10:10 +00:00 committed by Russell King
parent 6d4518d76f
commit 03bd14c4b7
1 changed files with 27 additions and 0 deletions
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27
include/asm-arm/arch-ixp4xx/platform.h
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@ -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)