include/linux/ssb/ssb_driver_extif.h - kernel/mindspeed - Git at Google

 /*
  * Hardware-specific External Interface I/O core definitions
  * for the BCM47xx family of SiliconBackplane-based chips.
  *
  * The External Interface core supports a total of three external chip selects
  * supporting external interfaces. One of the external chip selects is
  * used for Flash, one is used for PCMCIA, and the other may be
  * programmed to support either a synchronous interface or an
  * asynchronous interface. The asynchronous interface can be used to
  * support external devices such as UARTs and the BCM2019 Bluetooth
  * baseband processor.
  * The external interface core also contains 2 on-chip 16550 UARTs, clock
  * frequency control, a watchdog interrupt timer, and a GPIO interface.
  *
  * Copyright 2005, Broadcom Corporation
  * Copyright 2006, Michael Buesch
  *
  * Licensed under the GPL version 2. See COPYING for details.
  */
 #ifndef LINUX_SSB_EXTIFCORE_H_
 #define LINUX_SSB_EXTIFCORE_H_

 /* external interface address space */
 #define	SSB_EXTIF_PCMCIA_MEMBASE(x)	(x)
 #define	SSB_EXTIF_PCMCIA_IOBASE(x)	((x) + 0x100000)
 #define	SSB_EXTIF_PCMCIA_CFGBASE(x)	((x) + 0x200000)
 #define	SSB_EXTIF_CFGIF_BASE(x)		((x) + 0x800000)
 #define	SSB_EXTIF_FLASH_BASE(x)		((x) + 0xc00000)

 #define SSB_EXTIF_NR_GPIOOUT		5
 /* GPIO NOTE:
  * The multiple instances of output and output enable registers
  * are present to allow driver software for multiple cores to control
  * gpio outputs without needing to share a single register pair.
  * Use the following helper macro to get a register offset value.
  */
 #define SSB_EXTIF_GPIO_OUT(index)	({		\
 	BUILD_BUG_ON(index >= SSB_EXTIF_NR_GPIOOUT);	\
 	SSB_EXTIF_GPIO_OUT_BASE + ((index) * 8);	\
 					})
 #define SSB_EXTIF_GPIO_OUTEN(index)	({		\
 	BUILD_BUG_ON(index >= SSB_EXTIF_NR_GPIOOUT);	\
 	SSB_EXTIF_GPIO_OUTEN_BASE + ((index) * 8);	\
 					})

 /** EXTIF core registers **/

 #define SSB_EXTIF_CTL			0x0000
 #define  SSB_EXTIF_CTL_UARTEN		(1 << 0) /* UART enable */
 #define SSB_EXTIF_EXTSTAT		0x0004
 #define  SSB_EXTIF_EXTSTAT_EMODE	(1 << 0) /* Endian mode (ro) */
 #define  SSB_EXTIF_EXTSTAT_EIRQPIN	(1 << 1) /* External interrupt pin (ro) */
 #define  SSB_EXTIF_EXTSTAT_GPIOIRQPIN	(1 << 2) /* GPIO interrupt pin (ro) */
 #define SSB_EXTIF_PCMCIA_CFG		0x0010
 #define SSB_EXTIF_PCMCIA_MEMWAIT	0x0014
 #define SSB_EXTIF_PCMCIA_ATTRWAIT	0x0018
 #define SSB_EXTIF_PCMCIA_IOWAIT		0x001C
 #define SSB_EXTIF_PROG_CFG		0x0020
 #define SSB_EXTIF_PROG_WAITCNT		0x0024
 #define SSB_EXTIF_FLASH_CFG		0x0028
 #define SSB_EXTIF_FLASH_WAITCNT		0x002C
 #define SSB_EXTIF_WATCHDOG		0x0040
 #define SSB_EXTIF_CLOCK_N		0x0044
 #define SSB_EXTIF_CLOCK_SB		0x0048
 #define SSB_EXTIF_CLOCK_PCI		0x004C
 #define SSB_EXTIF_CLOCK_MII		0x0050
 #define SSB_EXTIF_GPIO_IN		0x0060
 #define SSB_EXTIF_GPIO_OUT_BASE		0x0064
 #define SSB_EXTIF_GPIO_OUTEN_BASE	0x0068
 #define SSB_EXTIF_EJTAG_OUTEN		0x0090
 #define SSB_EXTIF_GPIO_INTPOL		0x0094
 #define SSB_EXTIF_GPIO_INTMASK		0x0098
 #define SSB_EXTIF_UART_DATA		0x0300
 #define SSB_EXTIF_UART_TIMER		0x0310
 #define SSB_EXTIF_UART_FCR		0x0320
 #define SSB_EXTIF_UART_LCR		0x0330
 #define SSB_EXTIF_UART_MCR		0x0340
 #define SSB_EXTIF_UART_LSR		0x0350
 #define SSB_EXTIF_UART_MSR		0x0360
 #define SSB_EXTIF_UART_SCRATCH		0x0370


 /* pcmcia/prog/flash_config */
 #define	SSB_EXTCFG_EN			(1 << 0)	/* enable */
 #define	SSB_EXTCFG_MODE			0xE		/* mode */
 #define	SSB_EXTCFG_MODE_SHIFT		1
 #define	 SSB_EXTCFG_MODE_FLASH		0x0		/* flash/asynchronous mode */
 #define	 SSB_EXTCFG_MODE_SYNC		0x2		/* synchronous mode */
 #define	 SSB_EXTCFG_MODE_PCMCIA		0x4		/* pcmcia mode */
 #define	SSB_EXTCFG_DS16			(1 << 4)	/* destsize:  0=8bit, 1=16bit */
 #define	SSB_EXTCFG_BSWAP		(1 << 5)	/* byteswap */
 #define	SSB_EXTCFG_CLKDIV		0xC0		/* clock divider */
 #define	SSB_EXTCFG_CLKDIV_SHIFT		6
 #define	 SSB_EXTCFG_CLKDIV_2		0x0		/* backplane/2 */
 #define	 SSB_EXTCFG_CLKDIV_3		0x40		/* backplane/3 */
 #define	 SSB_EXTCFG_CLKDIV_4		0x80		/* backplane/4 */
 #define	SSB_EXTCFG_CLKEN		(1 << 8)	/* clock enable */
 #define	SSB_EXTCFG_STROBE		(1 << 9)	/* size/bytestrobe (synch only) */

 /* pcmcia_memwait */
 #define	SSB_PCMCIA_MEMW_0		0x0000003F	/* waitcount0 */
 #define	SSB_PCMCIA_MEMW_1		0x00001F00	/* waitcount1 */
 #define	SSB_PCMCIA_MEMW_1_SHIFT		8
 #define	SSB_PCMCIA_MEMW_2		0x001F0000	/* waitcount2 */
 #define	SSB_PCMCIA_MEMW_2_SHIFT		16
 #define	SSB_PCMCIA_MEMW_3		0x1F000000	/* waitcount3 */
 #define	SSB_PCMCIA_MEMW_3_SHIFT		24

 /* pcmcia_attrwait */
 #define	SSB_PCMCIA_ATTW_0		0x0000003F	/* waitcount0 */
 #define	SSB_PCMCIA_ATTW_1		0x00001F00	/* waitcount1 */
 #define	SSB_PCMCIA_ATTW_1_SHIFT		8
 #define	SSB_PCMCIA_ATTW_2		0x001F0000	/* waitcount2 */
 #define	SSB_PCMCIA_ATTW_2_SHIFT		16
 #define	SSB_PCMCIA_ATTW_3		0x1F000000	/* waitcount3 */
 #define	SSB_PCMCIA_ATTW_3_SHIFT		24

 /* pcmcia_iowait */
 #define	SSB_PCMCIA_IOW_0		0x0000003F	/* waitcount0 */
 #define	SSB_PCMCIA_IOW_1		0x00001F00	/* waitcount1 */
 #define	SSB_PCMCIA_IOW_1_SHIFT		8
 #define	SSB_PCMCIA_IOW_2		0x001F0000	/* waitcount2 */
 #define	SSB_PCMCIA_IOW_2_SHIFT		16
 #define	SSB_PCMCIA_IOW_3		0x1F000000	/* waitcount3 */
 #define	SSB_PCMCIA_IOW_3_SHIFT		24

 /* prog_waitcount */
 #define	SSB_PROG_WCNT_0			0x0000001F	/* waitcount0 */
 #define	SSB_PROG_WCNT_1			0x00001F00	/* waitcount1 */
 #define	SSB_PROG_WCNT_1_SHIFT		8
 #define	SSB_PROG_WCNT_2			0x001F0000	/* waitcount2 */
 #define	SSB_PROG_WCNT_2_SHIFT		16
 #define	SSB_PROG_WCNT_3			0x1F000000	/* waitcount3 */
 #define	SSB_PROG_WCNT_3_SHIFT		24

 #define SSB_PROG_W0			0x0000000C
 #define SSB_PROG_W1			0x00000A00
 #define SSB_PROG_W2			0x00020000
 #define SSB_PROG_W3			0x01000000

 /* flash_waitcount */
 #define	SSB_FLASH_WCNT_0		0x0000001F	/* waitcount0 */
 #define	SSB_FLASH_WCNT_1		0x00001F00	/* waitcount1 */
 #define	SSB_FLASH_WCNT_1_SHIFT		8
 #define	SSB_FLASH_WCNT_2		0x001F0000	/* waitcount2 */
 #define	SSB_FLASH_WCNT_2_SHIFT		16
 #define	SSB_FLASH_WCNT_3		0x1F000000	/* waitcount3 */
 #define	SSB_FLASH_WCNT_3_SHIFT		24

 /* watchdog */
 #define SSB_EXTIF_WATCHDOG_CLK		48000000	/* Hz */


 #ifdef CONFIG_SSB_DRIVER_EXTIF

 struct ssb_extif {
 	struct ssb_device *dev;
 };

 static inline bool ssb_extif_available(struct ssb_extif *extif)
 {
 	return (extif->dev != NULL);
 }

 extern void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
 			               u32 *plltype, u32 *n, u32 *m);

 extern void ssb_extif_timing_init(struct ssb_extif *extif,
 				  unsigned long ns);

 extern void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
 					 u32 ticks);

 /* Extif GPIO pin access */
 u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask);
 u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value);
 u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value);
 u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask, u32 value);
 u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask, u32 value);

 #ifdef CONFIG_SSB_SERIAL
 extern int ssb_extif_serial_init(struct ssb_extif *extif,
 				 struct ssb_serial_port *ports);
 #endif /* CONFIG_SSB_SERIAL */


 #else /* CONFIG_SSB_DRIVER_EXTIF */
 /* extif disabled */

 struct ssb_extif {
 };

 static inline bool ssb_extif_available(struct ssb_extif *extif)
 {
 	return 0;
 }

 static inline
 void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
 			        u32 *plltype, u32 *n, u32 *m)
 {
 }

 static inline
 void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
 				  u32 ticks)
 {
 }

 #endif /* CONFIG_SSB_DRIVER_EXTIF */
 #endif /* LINUX_SSB_EXTIFCORE_H_ */
	/*
	* Hardware-specific External Interface I/O core definitions
	* for the BCM47xx family of SiliconBackplane-based chips.
	*
	* The External Interface core supports a total of three external chip selects
	* supporting external interfaces. One of the external chip selects is
	* used for Flash, one is used for PCMCIA, and the other may be
	* programmed to support either a synchronous interface or an
	* asynchronous interface. The asynchronous interface can be used to
	* support external devices such as UARTs and the BCM2019 Bluetooth
	* baseband processor.
	* The external interface core also contains 2 on-chip 16550 UARTs, clock
	* frequency control, a watchdog interrupt timer, and a GPIO interface.
	*
	* Copyright 2005, Broadcom Corporation
	* Copyright 2006, Michael Buesch
	*
	* Licensed under the GPL version 2. See COPYING for details.
	*/
	#ifndef LINUX_SSB_EXTIFCORE_H_
	#define LINUX_SSB_EXTIFCORE_H_

	/* external interface address space */
	#define SSB_EXTIF_PCMCIA_MEMBASE(x) (x)
	#define SSB_EXTIF_PCMCIA_IOBASE(x) ((x) + 0x100000)
	#define SSB_EXTIF_PCMCIA_CFGBASE(x) ((x) + 0x200000)
	#define SSB_EXTIF_CFGIF_BASE(x) ((x) + 0x800000)
	#define SSB_EXTIF_FLASH_BASE(x) ((x) + 0xc00000)

	#define SSB_EXTIF_NR_GPIOOUT 5
	/* GPIO NOTE:
	* The multiple instances of output and output enable registers
	* are present to allow driver software for multiple cores to control
	* gpio outputs without needing to share a single register pair.
	* Use the following helper macro to get a register offset value.
	*/
	#define SSB_EXTIF_GPIO_OUT(index) ({ \
	BUILD_BUG_ON(index >= SSB_EXTIF_NR_GPIOOUT); \
	SSB_EXTIF_GPIO_OUT_BASE + ((index) * 8); \
	})
	#define SSB_EXTIF_GPIO_OUTEN(index) ({ \
	BUILD_BUG_ON(index >= SSB_EXTIF_NR_GPIOOUT); \
	SSB_EXTIF_GPIO_OUTEN_BASE + ((index) * 8); \
	})

	/ EXTIF core registers /

	#define SSB_EXTIF_CTL 0x0000
	#define SSB_EXTIF_CTL_UARTEN (1 << 0) /* UART enable */
	#define SSB_EXTIF_EXTSTAT 0x0004
	#define SSB_EXTIF_EXTSTAT_EMODE (1 << 0) /* Endian mode (ro) */
	#define SSB_EXTIF_EXTSTAT_EIRQPIN (1 << 1) /* External interrupt pin (ro) */
	#define SSB_EXTIF_EXTSTAT_GPIOIRQPIN (1 << 2) /* GPIO interrupt pin (ro) */
	#define SSB_EXTIF_PCMCIA_CFG 0x0010
	#define SSB_EXTIF_PCMCIA_MEMWAIT 0x0014
	#define SSB_EXTIF_PCMCIA_ATTRWAIT 0x0018
	#define SSB_EXTIF_PCMCIA_IOWAIT 0x001C
	#define SSB_EXTIF_PROG_CFG 0x0020
	#define SSB_EXTIF_PROG_WAITCNT 0x0024
	#define SSB_EXTIF_FLASH_CFG 0x0028
	#define SSB_EXTIF_FLASH_WAITCNT 0x002C
	#define SSB_EXTIF_WATCHDOG 0x0040
	#define SSB_EXTIF_CLOCK_N 0x0044
	#define SSB_EXTIF_CLOCK_SB 0x0048
	#define SSB_EXTIF_CLOCK_PCI 0x004C
	#define SSB_EXTIF_CLOCK_MII 0x0050
	#define SSB_EXTIF_GPIO_IN 0x0060
	#define SSB_EXTIF_GPIO_OUT_BASE 0x0064
	#define SSB_EXTIF_GPIO_OUTEN_BASE 0x0068
	#define SSB_EXTIF_EJTAG_OUTEN 0x0090
	#define SSB_EXTIF_GPIO_INTPOL 0x0094
	#define SSB_EXTIF_GPIO_INTMASK 0x0098
	#define SSB_EXTIF_UART_DATA 0x0300
	#define SSB_EXTIF_UART_TIMER 0x0310
	#define SSB_EXTIF_UART_FCR 0x0320
	#define SSB_EXTIF_UART_LCR 0x0330
	#define SSB_EXTIF_UART_MCR 0x0340
	#define SSB_EXTIF_UART_LSR 0x0350
	#define SSB_EXTIF_UART_MSR 0x0360
	#define SSB_EXTIF_UART_SCRATCH 0x0370




	/* pcmcia/prog/flash_config */
	#define SSB_EXTCFG_EN (1 << 0) /* enable */
	#define SSB_EXTCFG_MODE 0xE /* mode */
	#define SSB_EXTCFG_MODE_SHIFT 1
	#define SSB_EXTCFG_MODE_FLASH 0x0 /* flash/asynchronous mode */
	#define SSB_EXTCFG_MODE_SYNC 0x2 /* synchronous mode */
	#define SSB_EXTCFG_MODE_PCMCIA 0x4 /* pcmcia mode */
	#define SSB_EXTCFG_DS16 (1 << 4) /* destsize: 0=8bit, 1=16bit */
	#define SSB_EXTCFG_BSWAP (1 << 5) /* byteswap */
	#define SSB_EXTCFG_CLKDIV 0xC0 /* clock divider */
	#define SSB_EXTCFG_CLKDIV_SHIFT 6
	#define SSB_EXTCFG_CLKDIV_2 0x0 /* backplane/2 */
	#define SSB_EXTCFG_CLKDIV_3 0x40 /* backplane/3 */
	#define SSB_EXTCFG_CLKDIV_4 0x80 /* backplane/4 */
	#define SSB_EXTCFG_CLKEN (1 << 8) /* clock enable */
	#define SSB_EXTCFG_STROBE (1 << 9) /* size/bytestrobe (synch only) */

	/* pcmcia_memwait */
	#define SSB_PCMCIA_MEMW_0 0x0000003F /* waitcount0 */
	#define SSB_PCMCIA_MEMW_1 0x00001F00 /* waitcount1 */
	#define SSB_PCMCIA_MEMW_1_SHIFT 8
	#define SSB_PCMCIA_MEMW_2 0x001F0000 /* waitcount2 */
	#define SSB_PCMCIA_MEMW_2_SHIFT 16
	#define SSB_PCMCIA_MEMW_3 0x1F000000 /* waitcount3 */
	#define SSB_PCMCIA_MEMW_3_SHIFT 24

	/* pcmcia_attrwait */
	#define SSB_PCMCIA_ATTW_0 0x0000003F /* waitcount0 */
	#define SSB_PCMCIA_ATTW_1 0x00001F00 /* waitcount1 */
	#define SSB_PCMCIA_ATTW_1_SHIFT 8
	#define SSB_PCMCIA_ATTW_2 0x001F0000 /* waitcount2 */
	#define SSB_PCMCIA_ATTW_2_SHIFT 16
	#define SSB_PCMCIA_ATTW_3 0x1F000000 /* waitcount3 */
	#define SSB_PCMCIA_ATTW_3_SHIFT 24

	/* pcmcia_iowait */
	#define SSB_PCMCIA_IOW_0 0x0000003F /* waitcount0 */
	#define SSB_PCMCIA_IOW_1 0x00001F00 /* waitcount1 */
	#define SSB_PCMCIA_IOW_1_SHIFT 8
	#define SSB_PCMCIA_IOW_2 0x001F0000 /* waitcount2 */
	#define SSB_PCMCIA_IOW_2_SHIFT 16
	#define SSB_PCMCIA_IOW_3 0x1F000000 /* waitcount3 */
	#define SSB_PCMCIA_IOW_3_SHIFT 24

	/* prog_waitcount */
	#define SSB_PROG_WCNT_0 0x0000001F /* waitcount0 */
	#define SSB_PROG_WCNT_1 0x00001F00 /* waitcount1 */
	#define SSB_PROG_WCNT_1_SHIFT 8
	#define SSB_PROG_WCNT_2 0x001F0000 /* waitcount2 */
	#define SSB_PROG_WCNT_2_SHIFT 16
	#define SSB_PROG_WCNT_3 0x1F000000 /* waitcount3 */
	#define SSB_PROG_WCNT_3_SHIFT 24

	#define SSB_PROG_W0 0x0000000C
	#define SSB_PROG_W1 0x00000A00
	#define SSB_PROG_W2 0x00020000
	#define SSB_PROG_W3 0x01000000

	/* flash_waitcount */
	#define SSB_FLASH_WCNT_0 0x0000001F /* waitcount0 */
	#define SSB_FLASH_WCNT_1 0x00001F00 /* waitcount1 */
	#define SSB_FLASH_WCNT_1_SHIFT 8
	#define SSB_FLASH_WCNT_2 0x001F0000 /* waitcount2 */
	#define SSB_FLASH_WCNT_2_SHIFT 16
	#define SSB_FLASH_WCNT_3 0x1F000000 /* waitcount3 */
	#define SSB_FLASH_WCNT_3_SHIFT 24

	/* watchdog */
	#define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */



	#ifdef CONFIG_SSB_DRIVER_EXTIF

	struct ssb_extif {
	struct ssb_device *dev;
	};

	static inline bool ssb_extif_available(struct ssb_extif *extif)
	{
	return (extif->dev != NULL);
	}

	extern void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
	u32 plltype, u32 n, u32 *m);

	extern void ssb_extif_timing_init(struct ssb_extif *extif,
	unsigned long ns);

	extern void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
	u32 ticks);

	/* Extif GPIO pin access */
	u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask);
	u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value);
	u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value);
	u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask, u32 value);
	u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask, u32 value);

	#ifdef CONFIG_SSB_SERIAL
	extern int ssb_extif_serial_init(struct ssb_extif *extif,
	struct ssb_serial_port *ports);
	#endif /* CONFIG_SSB_SERIAL */


	#else /* CONFIG_SSB_DRIVER_EXTIF */
	/* extif disabled */

	struct ssb_extif {
	};

	static inline bool ssb_extif_available(struct ssb_extif *extif)
	{
	return 0;
	}

	static inline
	void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
	u32 plltype, u32 n, u32 *m)
	{
	}

	static inline
	void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
	u32 ticks)
	{
	}

	#endif /* CONFIG_SSB_DRIVER_EXTIF */
	#endif /* LINUX_SSB_EXTIFCORE_H_ */