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elan520reg.h revision 1.7.2.1
      1 /*	$NetBSD: elan520reg.h,v 1.7.2.1 2008/02/18 21:04:41 mjf Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Register definitions for the AMD Elan SC520 System Controller.
     41  */
     42 
     43 #ifndef _I386_PCI_ELAN520REG_H_
     44 #define	_I386_PCI_ELAN520REG_H_
     45 
     46 #define	MMCR_BASE_ADDR		0xfffef000
     47 
     48 /*
     49  * Am5x86 CPU Registers.
     50  */
     51 #define	MMCR_REVID		0x0000
     52 #define	MMCR_CPUCTL		0x0002
     53 
     54 #define	REVID_PRODID		0xff00	/* product ID */
     55 #define	REVID_PRODID_SHIFT	8
     56 #define	REVID_MAJSTEP		0x00f0	/* stepping major */
     57 #define	REVID_MAJSTEP_SHIFT	4
     58 #define	REVID_MINSTEP		0x000f	/* stepping minor */
     59 
     60 #define	PRODID_ELAN_SC520	0x00	/* Elan SC520 */
     61 
     62 #define	CPUCTL_CPU_CLK_SPD_MASK	0x03	/* CPU clock speed */
     63 #define	CPUCTL_CACHE_WR_MODE	0x10	/* cache mode (0 = wb, 1 = wt) */
     64 
     65 /*
     66  * Performance Registers
     67  */
     68 #define MMCR_DBCTL      0x0040  /* SDRAM Buffer Control */
     69 
     70 #define	MMCR_DBCTL_RAB_ENB	__BIT(4)	/* enable read-ahead */
     71 #define	MMCR_DBCTL_WB_WM_MASK	__BITS(3,2)	/* write buffer watermark */
     72 #define	MMCR_DBCTL_WB_WM_28DW	__SHIFTIN(0, MMCR_DBCTL_WB_WM_MASK)
     73 #define	MMCR_DBCTL_WB_WM_24DW	__SHIFTIN(1, MMCR_DBCTL_WB_WM_MASK)
     74 #define	MMCR_DBCTL_WB_WM_16DW	__SHIFTIN(2, MMCR_DBCTL_WB_WM_MASK)
     75 #define	MMCR_DBCTL_WB_WM_8DW	__SHIFTIN(3, MMCR_DBCTL_WB_WM_MASK)
     76 #define	MMCR_DBCTL_WB_FLUSH	__BIT(1)	/* write 1 to flush wr buf */
     77 #define	MMCR_DBCTL_WB_ENB	__BIT(0)	/* enable write buffer */
     78 #define MMCR_HBCTL      0x0060  /* Host Bridge Control */
     79 #define	MMCR_HBCTL_PCI_RST		__BIT(15)
     80 #define	MMCR_HBCTL_T_PURGE_RD_ENB	__BIT(10)
     81 #define	MMCR_HBCTL_T_DLYTR_ENB_MASK	__BITS(9,8)
     82 #define	MMCR_HBCTL_T_DLYTR_ENB_WAIT	\
     83     __SHIFTIN(0, MMCR_HBCTL_T_DLYTR_ENB_MASK)
     84 #define	MMCR_HBCTL_T_DLYTR_ENB_AUTORETRY\
     85     __SHIFTIN(1, MMCR_HBCTL_T_DLYTR_ENB_MASK)
     86 #define	MMCR_HBCTL_T_DLYTR_ENB_RSVD0	\
     87     __SHIFTIN(2, MMCR_HBCTL_T_DLYTR_ENB_MASK)
     88 #define	MMCR_HBCTL_T_DLYTR_ENB_RSVD1	\
     89     __SHIFTIN(3, MMCR_HBCTL_T_DLYTR_ENB_MASK)
     90 #define	MMCR_HBCTL_M_WPOST_ENB		__BIT(3)
     91 #define MMCR_SYSARBCTL  0x0070  /* System Arbiter Control */
     92 #define MMCR_SYSARBCTL_CNCR_MODE_ENB	__BIT(1)
     93 
     94 /*
     95  * PCI Host Bridge Registers
     96  */
     97 #define	MMCR_HBMSTIRQCTL	0x66	/* Host Bridge Master Interrupt Ctrl */
     98 #define	MMCR_M_RTRTO_IRQ_SEL	__BIT(13)	/* Master Retry Time-Out
     99 						 * Interrupt Select
    100 						 */
    101 #define	MMCR_M_TABRT_IRQ_SEL	__BIT(12)	/* Master Target Abort
    102 						 * Interrupt Select
    103 						 */
    104 #define	MMCR_M_MABRT_IRQ_SEL	__BIT(11)	/* Master Abort
    105 						 * Interrupt Select
    106 						 */
    107 #define	MMCR_M_SERR_IRQ_SEL	__BIT(10)	/* Master System Error
    108 						 * Interrupt Select
    109 						 */
    110 #define	MMCR_M_RPER_IRQ_SEL	__BIT(9)	/* Master Received PERR
    111 						 * Interrupt Select
    112 						 */
    113 #define	MMCR_M_DPER_IRQ_SEL	__BIT(8)	/* Master Detected PERR
    114 						 * Interrupt Select
    115 						 */
    116 #define	MMCR_M_RTRTO_IRQ_ENB	__BIT(5)	/* Master Retry Time-Out
    117 						 * Interrupt Enable
    118 						 */
    119 #define	MMCR_M_TABRT_IRQ_ENB	__BIT(4)	/* Master Target Abort
    120 						 * Interrupt Enable
    121 						 */
    122 #define	MMCR_M_MABRT_IRQ_ENB	__BIT(3)	/* Master Abort
    123 						 * Interrupt Enable
    124 						 */
    125 #define	MMCR_M_SERR_IRQ_ENB	__BIT(2)	/* Master System Error
    126 						 * Interrupt Enable
    127 						 */
    128 #define	MMCR_M_RPER_IRQ_ENB	__BIT(1)	/* Master Received PERR
    129 						 * Interrupt Enable
    130 						 */
    131 #define	MMCR_M_DPER_IRQ_ENB	__BIT(0)	/* Master Detected PERR
    132 						 * Interrupt Enable
    133 						 */
    134 
    135 #define	MMCR_HBTGTIRQCTL	0x62	/* Host Bridge Target Interrupt Ctrl */
    136 
    137 #define	MMCR_PCIHOSTMAP	0x0d14	/* PCI Host Bridge Interrupt Mapping */
    138 
    139 #define	MMCR_PCIHOSTMAP_PCI_NMI_ENB	__BIT(8)
    140 #define	MMCR_PCIHOSTMAP_PCI_IRQ_MAP	__BITS(4, 0)
    141 
    142 /* Programmable Interrupt Controller.  8 bits. */
    143 #define	MMCR_PICICR			0xd00
    144 #define	MMCR_PICICR_NMI_DONE		__BIT(7)
    145 #define	MMCR_PICICR_NMI_ENB		__BIT(6)
    146 #define	MMCR_PICICR_RSVD0		__BITS(5, 3)
    147 #define	MMCR_PICICR_S2_GINT_MODE	__BIT(2)
    148 #define	MMCR_PICICR_S1_GINT_MODE	__BIT(1)
    149 #define	MMCR_PICICR_M_GINT_MODE		__BIT(0)
    150 
    151 #define	MMCR_MPICMODE		0xd02
    152 #define	MMCR_SL1PICMODE		0xd03
    153 #define	MMCR_SL2PICMODE		0xd04
    154 
    155 #define	MMCR_WPVMAP		0xd44
    156 #define	MMCR_WPVMAP_RSVD0	__BITS(7, 5)
    157 /* map write-protection violations to an Elan SC520 interrupt priority,
    158  * 1 through 22
    159  */
    160 #define	MMCR_WPVMAP_INT_MAP	__BITS(4, 0)
    161 /* no bits set -> disable */
    162 #define	MMCR_WPVMAP_INT_OFF	0
    163 /* all bits set -> NMI */
    164 #define	MMCR_WPVMAP_INT_NMI	MMCR_WPVMAP_INT_MAP
    165 
    166 #define	MMCR_ADDDECCTL		0x80
    167 #define	MMCR_ADDDECCTL_WPV_INT_ENB	__BIT(7)
    168 
    169 #define	MMCR_WPVSTA		0x82
    170 #define	MMCR_WPVSTA_WPV_STA		__BIT(15)
    171 #define	MMCR_WPVSTA_WPV_RSVD0		__BITS(14, 10)
    172 #define	MMCR_WPVSTA_WPV_MSTR		__BITS(9, 8)
    173 #define	MMCR_WPVSTA_WPV_MSTR_CPU	__SHIFTIN(0, MMCR_WPVSTA_WPV_MSTR)
    174 #define	MMCR_WPVSTA_WPV_MSTR_PCI	__SHIFTIN(1, MMCR_WPVSTA_WPV_MSTR)
    175 #define	MMCR_WPVSTA_WPV_MSTR_GP		__SHIFTIN(2, MMCR_WPVSTA_WPV_MSTR)
    176 #define	MMCR_WPVSTA_WPV_MSTR_RSVD	__SHIFTIN(3, MMCR_WPVSTA_WPV_MSTR)
    177 #define	MMCR_WPVSTA_WPV_RSVD1		__BITS(7, 4)
    178 #define	MMCR_WPVSTA_WPV_WINDOW		__BITS(3, 0)
    179 
    180 #define	MMCR_PAR(__i)		(0x88 + 4 * (__i))
    181 #define	MMCR_PAR_TARGET		__BITS(31, 29)
    182 #define	MMCR_PAR_TARGET_OFF	__SHIFTIN(0, MMCR_PAR_TARGET)
    183 #define	MMCR_PAR_TARGET_GPIO	__SHIFTIN(1, MMCR_PAR_TARGET)
    184 #define	MMCR_PAR_TARGET_GPMEM	__SHIFTIN(2, MMCR_PAR_TARGET)
    185 #define	MMCR_PAR_TARGET_PCI	__SHIFTIN(3, MMCR_PAR_TARGET)
    186 #define	MMCR_PAR_TARGET_BOOTCS	__SHIFTIN(4, MMCR_PAR_TARGET)
    187 #define	MMCR_PAR_TARGET_ROMCS1	__SHIFTIN(5, MMCR_PAR_TARGET)
    188 #define	MMCR_PAR_TARGET_ROMCS2	__SHIFTIN(6, MMCR_PAR_TARGET)
    189 #define	MMCR_PAR_TARGET_SDRAM	__SHIFTIN(7, MMCR_PAR_TARGET)
    190 #define	MMCR_PAR_ATTR		__BITS(28, 26)
    191 #define	MMCR_PAR_ATTR_NOEXEC	__SHIFTIN(__BIT(2), MMCR_PAR_ATTR)
    192 #define	MMCR_PAR_ATTR_NOCACHE	__SHIFTIN(__BIT(1), MMCR_PAR_ATTR)
    193 #define	MMCR_PAR_ATTR_NOWRITE	__SHIFTIN(__BIT(0), MMCR_PAR_ATTR)
    194 #define	MMCR_PAR_PG_SZ		__BIT(25)
    195 #define	MMCR_PAR_SZ_ST_ADR	__BITS(24, 0)
    196 #define	MMCR_PAR_4KB_SZ		__BITS(24, 18)
    197 #define	MMCR_PAR_4KB_ST_ADR	__BITS(17, 0)
    198 #define	MMCR_PAR_64KB_SZ	__BITS(24, 14)
    199 #define	MMCR_PAR_64KB_ST_ADR	__BITS(13, 0)
    200 #define	MMCR_PAR_IO_SZ		__BITS(24, 16)
    201 #define	MMCR_PAR_IO_ST_ADR	__BITS(15, 0)
    202 
    203 /*
    204  * General Purpose Bus Registers
    205  */
    206 #define	MMCR_GPECHO		0x0c00	/* GP echo mode */
    207 #define	MMCR_GPCSDW		0x0c01	/* GP chip sel data width */
    208 #define	MMCR_CPCSQUAL		0x0c02	/* GP chip sel qualification */
    209 #define	MMCR_GPCSRT		0x0c08	/* GP chip sel recovery time */
    210 #define	MMCR_GPCSPW		0x0c09	/* GP chip sel pulse width */
    211 #define	MMCR_GPCSOFF		0x0c0a	/* GP chip sel offset */
    212 #define	MMCR_GPRDW		0x0c0b	/* GP read pulse width */
    213 #define	MMCR_GPRDOFF		0x0c0c	/* GP read offset */
    214 #define	MMCR_GPWRW		0x0c0d	/* GP write pulse width */
    215 #define	MMCR_GPWROFF		0x0c0e	/* GP write offset */
    216 #define	MMCR_GPALEW		0x0c0f	/* GPALE pulse width */
    217 #define	MMCR_GPALEOFF		0x0c10	/* GPALE offset */
    218 
    219 #define	GPECHO_GP_ECHO_ENB	0x01	/* GP bus echo mode enable */
    220 
    221 /*
    222  * Programmable Input/Output Registers
    223  */
    224 #define	MMCR_PIOPFS15_0		0x0c20	/* PIO15-PIO0 pin func sel */
    225 #define	MMCR_PIOPFS31_16	0x0c22	/* PIO31-PIO16 pin func sel */
    226 #define	MMCR_CSPFS		0x0c24	/* chip sel pin func sel */
    227 #define	MMCR_CLKSEL		0x0c26	/* clock select */
    228 #define	MMCR_DSCTL		0x0c28	/* drive strength control */
    229 #define	MMCR_PIODIR15_0		0x0c2a	/* PIO15-PIO0 direction */
    230 #define	MMCR_PIODIR31_16	0x0c2c	/* PIO31-PIO16 direction */
    231 #define	MMCR_PIODATA15_0	0x0c30	/* PIO15-PIO0 data */
    232 #define	MMCR_PIODATA31_16	0x0c32	/* PIO31-PIO16 data */
    233 #define	MMCR_PIOSET15_0		0x0c34	/* PIO15-PIO0 set */
    234 #define	MMCR_PIOSET31_16	0x0c36	/* PIO31-PIO16 set */
    235 #define	MMCR_PIOCLR15_0		0x0c38	/* PIO15-PIO0 clear */
    236 #define	MMCR_PIOCLR31_16	0x0c3a	/* PIO31-PIO16 clear */
    237 
    238 #define	ELANSC_PIO_NPINS	32	/* total number of PIO pins */
    239 
    240 /*
    241  * Watchdog Timer Registers.
    242  */
    243 #define	MMCR_WDTMRCTL		0x0cb0	/* watchdog timer control */
    244 #define	MMCR_WDTMRCNTL		0x0cb2	/* watchdog timer count low */
    245 #define	MMCR_WDTMRCNTH		0x0cb4	/* watchdog timer count high */
    246 
    247 #define	WDTMRCTL_EXP_SEL_MASK	0x00ff	/* exponent select */
    248 #define	WDTMRCTL_EXP_SEL14	0x0001	/*	496us/492us */
    249 #define	WDTMRCTL_EXP_SEL24	0x0002	/*	508ms/503ms */
    250 #define	WDTMRCTL_EXP_SEL25	0x0004	/*	1.02s/1.01s */
    251 #define	WDTMRCTL_EXP_SEL26	0x0008	/*	2.03s/2.01s */
    252 #define	WDTMRCTL_EXP_SEL27	0x0010	/*	4.07s/4.03s */
    253 #define	WDTMRCTL_EXP_SEL28	0x0020	/*	8.13s/8.05s */
    254 #define	WDTMRCTL_EXP_SEL29	0x0040	/*	16.27s/16.11s */
    255 #define	WDTMRCTL_EXP_SEL30	0x0080	/*	32.54s/32.21s */
    256 #define	WDTMRCTL_IRQ_FLG	0x1000	/* interrupt request */
    257 #define	WDTMRCTL_WRST_ENB	0x4000	/* watchdog timer reset enable */
    258 #define	WDTMRCTL_ENB		0x8000	/* watchdog timer enable */
    259 
    260 #define	WDTMRCTL_UNLOCK1	0x3333
    261 #define	WDTMRCTL_UNLOCK2	0xcccc
    262 
    263 #define	WDTMRCTL_RESET1		0xaaaa
    264 #define	WDTMRCTL_RESET2		0x5555
    265 
    266 /*
    267  * Reset Generation Registers.
    268  */
    269 #define	MMCR_SYSINFO		0x0d70	/* system board information */
    270 #define	MMCR_RESCFG		0x0d72	/* reset configuration */
    271 #define	MMCR_RESSTA		0x0d74	/* reset status */
    272 
    273 #define	RESCFG_SYS_RST		0x01	/* software system reset */
    274 #define	RESCFG_GP_RST		0x02	/* assert GP bus reset */
    275 #define	RESCFG_PRG_RST_ENB	0x04	/* programmable reset enable */
    276 #define	RESCFG_ICE_ON_RST	0x08	/* enter AMDebug(tm) on reset */
    277 
    278 #define	RESSTA_PWRGOOD_DET	0x01	/* POWERGOOD reset detect */
    279 #define	RESSTA_PRGRST_DET	0x02	/* programmable reset detect */
    280 #define	RESSTA_SD_RST_DET	0x04	/* CPU shutdown reset detect */
    281 #define	RESSTA_WDT_RST_DET	0x08	/* watchdog timer reset detect */
    282 #define	RESSTA_ICE_SRST_DET	0x10	/* AMDebug(tm) soft reset detect */
    283 #define	RESSTA_ICE_HRST_DET	0x20	/* AMDebug(tm) soft reset detect */
    284 #define	RESSTA_SCP_RST		0x40	/* SCP reset detect */
    285 
    286 #endif /* _I386_PCI_ELAN520REG_H_ */
    287