i2c: s6000: remove duplicate driver

It turned out that the s6000 simply has a designware IP core and should
use the designated driver for it which is way more maintained and
feature complete. There are currently no users in tree, and not even a
toolchain for s6000 seems to be available. So, simply remove this
duplicate. If someone needs assistance in converting to the designware
driver, the i2c list will be there to help.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/Kconfig

@@ -700,16 +700,6 @@ config I2C_S3C2410
 	  Say Y here to include support for I2C controller in the
 	  Samsung SoCs.
 
-config I2C_S6000
-	tristate "S6000 I2C support"
-	depends on XTENSA_VARIANT_S6000
-	help
-	  This driver supports the on chip I2C device on the
-	  S6000 xtensa processor family.
-
-	  To compile this driver as a module, choose M here. The module
-	  will be called i2c-s6000.
-
 config I2C_SH7760
 	tristate "Renesas SH7760 I2C Controller"
 	depends on CPU_SUBTYPE_SH7760

drivers/i2c/busses/Makefile

@@ -68,7 +68,6 @@ obj-$(CONFIG_I2C_QUP)		+= i2c-qup.o
 obj-$(CONFIG_I2C_RIIC)		+= i2c-riic.o
 obj-$(CONFIG_I2C_RK3X)		+= i2c-rk3x.o
 obj-$(CONFIG_I2C_S3C2410)	+= i2c-s3c2410.o
-obj-$(CONFIG_I2C_S6000)		+= i2c-s6000.o
 obj-$(CONFIG_I2C_SH7760)	+= i2c-sh7760.o
 obj-$(CONFIG_I2C_SH_MOBILE)	+= i2c-sh_mobile.o
 obj-$(CONFIG_I2C_SIMTEC)	+= i2c-simtec.o

drivers/i2c/busses/i2c-s6000.h

-/*
- * drivers/i2c/busses/i2c-s6000.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2008 Emlix GmbH <info@emlix.com>
- * Author:	Oskar Schirmer <oskar@scara.com>
- */
-
-#ifndef __DRIVERS_I2C_BUSSES_I2C_S6000_H
-#define __DRIVERS_I2C_BUSSES_I2C_S6000_H
-
-#define S6_I2C_CON		0x000
-#define S6_I2C_CON_MASTER		0
-#define S6_I2C_CON_SPEED		1
-#define S6_I2C_CON_SPEED_NORMAL			1
-#define S6_I2C_CON_SPEED_FAST			2
-#define S6_I2C_CON_SPEED_MASK			3
-#define S6_I2C_CON_10BITSLAVE		3
-#define S6_I2C_CON_10BITMASTER		4
-#define S6_I2C_CON_RESTARTENA		5
-#define S6_I2C_CON_SLAVEDISABLE		6
-#define S6_I2C_TAR		0x004
-#define S6_I2C_TAR_GCORSTART		10
-#define S6_I2C_TAR_SPECIAL		11
-#define S6_I2C_SAR		0x008
-#define S6_I2C_HSMADDR		0x00C
-#define S6_I2C_DATACMD		0x010
-#define S6_I2C_DATACMD_READ		8
-#define S6_I2C_SSHCNT		0x014
-#define S6_I2C_SSLCNT		0x018
-#define S6_I2C_FSHCNT		0x01C
-#define S6_I2C_FSLCNT		0x020
-#define S6_I2C_INTRSTAT		0x02C
-#define S6_I2C_INTRMASK		0x030
-#define S6_I2C_RAWINTR		0x034
-#define S6_I2C_INTR_RXUNDER		0
-#define S6_I2C_INTR_RXOVER		1
-#define S6_I2C_INTR_RXFULL		2
-#define S6_I2C_INTR_TXOVER		3
-#define S6_I2C_INTR_TXEMPTY		4
-#define S6_I2C_INTR_RDREQ		5
-#define S6_I2C_INTR_TXABRT		6
-#define S6_I2C_INTR_RXDONE		7
-#define S6_I2C_INTR_ACTIVITY		8
-#define S6_I2C_INTR_STOPDET		9
-#define S6_I2C_INTR_STARTDET		10
-#define S6_I2C_INTR_GENCALL		11
-#define S6_I2C_RXTL		0x038
-#define S6_I2C_TXTL		0x03C
-#define S6_I2C_CLRINTR		0x040
-#define S6_I2C_CLRRXUNDER	0x044
-#define S6_I2C_CLRRXOVER	0x048
-#define S6_I2C_CLRTXOVER	0x04C
-#define S6_I2C_CLRRDREQ		0x050
-#define S6_I2C_CLRTXABRT	0x054
-#define S6_I2C_CLRRXDONE	0x058
-#define S6_I2C_CLRACTIVITY	0x05C
-#define S6_I2C_CLRSTOPDET	0x060
-#define S6_I2C_CLRSTARTDET	0x064
-#define S6_I2C_CLRGENCALL	0x068
-#define S6_I2C_ENABLE		0x06C
-#define S6_I2C_STATUS		0x070
-#define S6_I2C_STATUS_ACTIVITY		0
-#define S6_I2C_STATUS_TFNF		1
-#define S6_I2C_STATUS_TFE		2
-#define S6_I2C_STATUS_RFNE		3
-#define S6_I2C_STATUS_RFF		4
-#define S6_I2C_TXFLR		0x074
-#define S6_I2C_RXFLR		0x078
-#define S6_I2C_SRESET		0x07C
-#define S6_I2C_SRESET_IC_SRST		0
-#define S6_I2C_SRESET_IC_MASTER_SRST	1
-#define S6_I2C_SRESET_IC_SLAVE_SRST	2
-#define S6_I2C_TXABRTSOURCE	0x080
-
-#endif

include/linux/i2c/s6000.h

-#ifndef __LINUX_I2C_S6000_H
-#define __LINUX_I2C_S6000_H
-
-struct s6_i2c_platform_data {
-	const char *clock; /* the clock to use */
-	int bus_num; /* the bus number to register */
-};
-
-#endif
-