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/*
* AMD Alchemy DB1x00 Reference Boards
*
* Copyright 2001 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
* ppopov@mvista.com or source@mvista.com
* Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
*
* ########################################################################
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* ########################################################################
*
*
*/
#ifndef __ASM_DB1X00_H
#define __ASM_DB1X00_H
#include <linux/config.h>
#ifdef CONFIG_MIPS_DB1550
#define BCSR_KSEG1_ADDR 0xAF000000
#define NAND_PHYS_ADDR 0x20000000
#else
#define BCSR_KSEG1_ADDR 0xAE000000
#endif
/*
* Overlay data structure of the Db1x00 board registers.
* Registers located at physical 0E0000xx, KSEG1 0xAE0000xx
*/
typedef volatile struct
{
/*00*/ unsigned short whoami;
unsigned short reserved0;
/*04*/ unsigned short status;
unsigned short reserved1;
/*08*/ unsigned short switches;
unsigned short reserved2;
/*0C*/ unsigned short resets;
unsigned short reserved3;
/*10*/ unsigned short pcmcia;
unsigned short reserved4;
/*14*/ unsigned short specific;
unsigned short reserved5;
/*18*/ unsigned short leds;
unsigned short reserved6;
/*1C*/ unsigned short swreset;
unsigned short reserved7;
} BCSR;
/*
* Register/mask bit definitions for the BCSRs
*/
#define BCSR_WHOAMI_DCID 0x000F
#define BCSR_WHOAMI_CPLD 0x00F0
#define BCSR_WHOAMI_BOARD 0x0F00
#define BCSR_STATUS_PC0VS 0x0003
#define BCSR_STATUS_PC1VS 0x000C
#define BCSR_STATUS_PC0FI 0x0010
#define BCSR_STATUS_PC1FI 0x0020
#define BCSR_STATUS_FLASHBUSY 0x0100
#define BCSR_STATUS_ROMBUSY 0x0400
#define BCSR_STATUS_SWAPBOOT 0x2000
#define BCSR_STATUS_FLASHDEN 0xC000
#define BCSR_SWITCHES_DIP 0x00FF
#define BCSR_SWITCHES_DIP_1 0x0080
#define BCSR_SWITCHES_DIP_2 0x0040
#define BCSR_SWITCHES_DIP_3 0x0020
#define BCSR_SWITCHES_DIP_4 0x0010
#define BCSR_SWITCHES_DIP_5 0x0008
#define BCSR_SWITCHES_DIP_6 0x0004
#define BCSR_SWITCHES_DIP_7 0x0002
#define BCSR_SWITCHES_DIP_8 0x0001
#define BCSR_SWITCHES_ROTARY 0x0F00
#define BCSR_RESETS_PHY0 0x0001
#define BCSR_RESETS_PHY1 0x0002
#define BCSR_RESETS_DC 0x0004
#define BCSR_RESETS_FIR_SEL 0x2000
#define BCSR_RESETS_IRDA_MODE_MASK 0xC000
#define BCSR_RESETS_IRDA_MODE_FULL 0x0000
#define BCSR_RESETS_IRDA_MODE_OFF 0x4000
#define BCSR_RESETS_IRDA_MODE_2_3 0x8000
#define BCSR_RESETS_IRDA_MODE_1_3 0xC000
#define BCSR_PCMCIA_PC0VPP 0x0003
#define BCSR_PCMCIA_PC0VCC 0x000C
#define BCSR_PCMCIA_PC0DRVEN 0x0010
#define BCSR_PCMCIA_PC0RST 0x0080
#define BCSR_PCMCIA_PC1VPP 0x0300
#define BCSR_PCMCIA_PC1VCC 0x0C00
#define BCSR_PCMCIA_PC1DRVEN 0x1000
#define BCSR_PCMCIA_PC1RST 0x8000
#define BCSR_BOARD_PCIM66EN 0x0001
#define BCSR_BOARD_SD0_PWR 0x0040
#define BCSR_BOARD_SD1_PWR 0x0080
#define BCSR_BOARD_PCIM33 0x0100
#define BCSR_BOARD_GPIO200RST 0x0400
#define BCSR_BOARD_PCICFG 0x1000
#define BCSR_BOARD_SD0_WP 0x4000
#define BCSR_BOARD_SD1_WP 0x8000
#define BCSR_LEDS_DECIMALS 0x0003
#define BCSR_LEDS_LED0 0x0100
#define BCSR_LEDS_LED1 0x0200
#define BCSR_LEDS_LED2 0x0400
#define BCSR_LEDS_LED3 0x0800
#define BCSR_SWRESET_RESET 0x0080
/* PCMCIA Db1x00 specific defines */
#define PCMCIA_MAX_SOCK 1
#define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)
/* VPP/VCC */
#define SET_VCC_VPP(VCC, VPP, SLOT)\
((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))
/* SD controller macros */
/*
* Detect card.
*/
#define mmc_card_inserted(_n_, _res_) \
do { \
BCSR * const bcsr = (BCSR *)0xAE000000; \
unsigned long mmc_wp, board_specific; \
if ((_n_)) { \
mmc_wp = BCSR_BOARD_SD1_WP; \
} else { \
mmc_wp = BCSR_BOARD_SD0_WP; \
} \
board_specific = au_readl((unsigned long)(&bcsr->specific)); \
if (!(board_specific & mmc_wp)) {/* low means card present */ \
*(int *)(_res_) = 1; \
} else { \
*(int *)(_res_) = 0; \
} \
} while (0)
/*
* Apply power to card slot(s).
*/
#define mmc_power_on(_n_) \
do { \
BCSR * const bcsr = (BCSR *)0xAE000000; \
unsigned long mmc_pwr, mmc_wp, board_specific; \
if ((_n_)) { \
mmc_pwr = BCSR_BOARD_SD1_PWR; \
mmc_wp = BCSR_BOARD_SD1_WP; \
} else { \
mmc_pwr = BCSR_BOARD_SD0_PWR; \
mmc_wp = BCSR_BOARD_SD0_WP; \
} \
board_specific = au_readl((unsigned long)(&bcsr->specific)); \
if (!(board_specific & mmc_wp)) {/* low means card present */ \
board_specific |= mmc_pwr; \
au_writel(board_specific, (int)(&bcsr->specific)); \
au_sync(); \
} \
} while (0)
/* NAND defines */
/* Timing values as described in databook, * ns value stripped of
* lower 2 bits.
* These defines are here rather than an SOC1550 generic file because
* the parts chosen on another board may be different and may require
* different timings.
*/
#define NAND_T_H (18 >> 2)
#define NAND_T_PUL (30 >> 2)
#define NAND_T_SU (30 >> 2)
#define NAND_T_WH (30 >> 2)
/* Bitfield shift amounts */
#define NAND_T_H_SHIFT 0
#define NAND_T_PUL_SHIFT 4
#define NAND_T_SU_SHIFT 8
#define NAND_T_WH_SHIFT 12
#define NAND_TIMING ((NAND_T_H & 0xF) << NAND_T_H_SHIFT) | \
((NAND_T_PUL & 0xF) << NAND_T_PUL_SHIFT) | \
((NAND_T_SU & 0xF) << NAND_T_SU_SHIFT) | \
((NAND_T_WH & 0xF) << NAND_T_WH_SHIFT)
#endif /* __ASM_DB1X00_H */
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