Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 03bd14c4 authored by Alessandro Zummo's avatar Alessandro Zummo Committed by Russell King
Browse files

[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: default avatarAlessandro Zummo <a.zummo@towertech.it>
Signed-off-by: default avatarOEyvind Repvik <oyvind@repvik.org>
Signed-off-by: default avatarDeepak Saxena <dsaxena@plexity.net>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 6d4518d7

include/asm-arm/arch-ixp4xx/platform.h

+27 −0
Original line number Diff line number Diff line
@@ -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)