/*
 * arch/arm/include/asm/hardware/sa1111.h
 *
 * Copyright (C) 2000 John G Dorsey <john+@cs.cmu.edu>
 *
 * This file contains definitions for the SA-1111 Companion Chip.
 * (Structure and naming borrowed from SA-1101.h, by Peter Danielsson.)
 *
 * Macro that calculates real address for registers in the SA-1111
 */

#ifndef _ASM_ARCH_SA1111
#define _ASM_ARCH_SA1111

#include <mach/bitfield.h>

/*
 * The SA1111 is always located at virtual 0xf4000000, and is always
 * "native" endian.
 */

#define SA1111_VBASE		0xf4000000

/* Don't use these! */
#define SA1111_p2v( x )         ((x) - SA1111_BASE + SA1111_VBASE)
#define SA1111_v2p( x )         ((x) - SA1111_VBASE + SA1111_BASE)

#ifndef __ASSEMBLY__
#define _SA1111(x)	((x) + sa1111->resource.start)
#endif

#define sa1111_writel(val,addr)	__raw_writel(val, addr)
#define sa1111_readl(addr)	__raw_readl(addr)

/*
 * 26 bits of the SA-1110 address bus are available to the SA-1111.
 * Use these when feeding target addresses to the DMA engines.
 */

#define SA1111_ADDR_WIDTH	(26)
#define SA1111_ADDR_MASK	((1<<SA1111_ADDR_WIDTH)-1)
#define SA1111_DMA_ADDR(x)	((x)&SA1111_ADDR_MASK)

/*
 * Don't ask the (SAC) DMA engines to move less than this amount.
 */

#define SA1111_SAC_DMA_MIN_XFER	(0x800)

/*
 * System Bus Interface (SBI)
 *
 * Registers
 *    SKCR	Control Register
 *    SMCR	Shared Memory Controller Register
 *    SKID	ID Register
 */
#define SA1111_SKCR	0x0000
#define SA1111_SMCR	0x0004
#define SA1111_SKID	0x0008

#define SKCR_PLL_BYPASS	(1<<0)
#define SKCR_RCLKEN	(1<<1)
#define SKCR_SLEEP	(1<<2)
#define SKCR_DOZE	(1<<3)
#define SKCR_VCO_OFF	(1<<4)
#define SKCR_SCANTSTEN	(1<<5)
#define SKCR_CLKTSTEN	(1<<6)
#define SKCR_RDYEN	(1<<7)
#define SKCR_SELAC	(1<<8)
#define SKCR_OPPC	(1<<9)
#define SKCR_PLLTSTEN	(1<<10)
#define SKCR_USBIOTSTEN	(1<<11)
/*
 * Don't believe the specs!  Take them, throw them outside.  Leave them
 * there for a week.  Spit on them.  Walk on them.  Stamp on them.
 * Pour gasoline over them and finally burn them.  Now think about coding.
 *  - The October 1999 errata (278260-007) says its bit 13, 1 to enable.
 *  - The Feb 2001 errata (278260-010) says that the previous errata
 *    (278260-009) is wrong, and its bit actually 12, fixed in spec
 *    278242-003.
 *  - The SA1111 manual (278242) says bit 12, but 0 to enable.
 *  - Reality is bit 13, 1 to enable.
 *      -- rmk
 */
#define SKCR_OE_EN	(1<<13)

#define SMCR_DTIM	(1<<0)
#define SMCR_MBGE	(1<<1)
#define SMCR_DRAC_0	(1<<2)
#define SMCR_DRAC_1	(1<<3)
#define SMCR_DRAC_2	(1<<4)
#define SMCR_DRAC	Fld(3, 2)
#define SMCR_CLAT	(1<<5)

#define SKID_SIREV_MASK	(0x000000f0)
#define SKID_MTREV_MASK (0x0000000f)
#define SKID_ID_MASK	(0xffffff00)
#define SKID_SA1111_ID	(0x690cc200)

/*
 * System Controller
 *
 * Registers
 *    SKPCR	Power Control Register
 *    SKCDR	Clock Divider Register
 *    SKAUD	Audio Clock Divider Register
 *    SKPMC	PS/2 Mouse Clock Divider Register
 *    SKPTC	PS/2 Track Pad Clock Divider Register
 *    SKPEN0	PWM0 Enable Register
 *    SKPWM0	PWM0 Clock Register
 *    SKPEN1	PWM1 Enable Register
 *    SKPWM1	PWM1 Clock Register
 */
#define SA1111_SKPCR	0x0200
#define SA1111_SKCDR	0x0204
#define SA1111_SKAUD	0x0208
#define SA1111_SKPMC	0x020c
#define SA1111_SKPTC	0x0210
#define SA1111_SKPEN0	0x0214
#define SA1111_SKPWM0	0x0218
#define SA1111_SKPEN1	0x021c
#define SA1111_SKPWM1	0x0220

#define SKPCR_UCLKEN	(1<<0)
#define SKPCR_ACCLKEN	(1<<1)
#define SKPCR_I2SCLKEN	(1<<2)
#define SKPCR_L3CLKEN	(1<<3)
#define SKPCR_SCLKEN	(1<<4)
#define SKPCR_PMCLKEN	(1<<5)
#define SKPCR_PTCLKEN	(1<<6)
#define SKPCR_DCLKEN	(1<<7)
#define SKPCR_PWMCLKEN	(1<<8)

/* USB Host controller */
#define SA1111_USB		0x0400

/*
 * Serial Audio Controller
 *
 * Registers
 *    SACR0             Serial Audio Common Control Register
 *    SACR1             Serial Audio Alternate Mode (I2C/MSB) Control Register
 *    SACR2             Serial Audio AC-link Control Register
 *    SASR0             Serial Audio I2S/MSB Interface & FIFO Status Register
 *    SASR1             Serial Audio AC-link Interface & FIFO Status Register
 *    SASCR             Serial Audio Status Clear Register
 *    L3_CAR            L3 Control Bus Address Register
 *    L3_CDR            L3 Control Bus Data Register
 *    ACCAR             AC-link Command Address Register
 *    ACCDR             AC-link Command Data Register
 *    ACSAR             AC-link Status Address Register
 *    ACSDR             AC-link Status Data Register
 *    SADTCS            Serial Audio DMA Transmit Control/Status Register
 *    SADTSA            Serial Audio DMA Transmit Buffer Start Address A
 *    SADTCA            Serial Audio DMA Transmit Buffer Count Register A
 *    SADTSB            Serial Audio DMA Transmit Buffer Start Address B
 *    SADTCB            Serial Audio DMA Transmit Buffer Count Register B
 *    SADRCS            Serial Audio DMA Receive Control/Status Register
 *    SADRSA            Serial Audio DMA Receive Buffer Start Address A
 *    SADRCA            Serial Audio DMA Receive Buffer Count Register A
 *    SADRSB            Serial Audio DMA Receive Buffer Start Address B
 *    SADRCB            Serial Audio DMA Receive Buffer Count Register B
 *    SAITR             Serial Audio Interrupt Test Register
 *    SADR              Serial Audio Data Register (16 x 32-bit)
 */

#define SA1111_SERAUDIO		0x0600

/*
 * These are offsets from the above base.
 */
#define SA1111_SACR0		0x00
#define SA1111_SACR1		0x04
#define SA1111_SACR2		0x08
#define SA1111_SASR0		0x0c
#define SA1111_SASR1		0x10
#define SA1111_SASCR		0x18
#define SA1111_L3_CAR		0x1c
#define SA1111_L3_CDR		0x20
#define SA1111_ACCAR		0x24
#define SA1111_ACCDR		0x28
#define SA1111_ACSAR		0x2c
#define SA1111_ACSDR		0x30
#define SA1111_SADTCS		0x34
#define SA1111_SADTSA		0x38
#define SA1111_SADTCA		0x3c
#define SA1111_SADTSB		0x40
#define SA1111_SADTCB		0x44
#define SA1111_SADRCS		0x48
#define SA1111_SADRSA		0x4c
#define SA1111_SADRCA		0x50
#define SA1111_SADRSB		0x54