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at91dbgureg.h revision 1.2
      1 /*	$NetBSD: at91dbgureg.h,v 1.2 2008/07/03 01:15:38 matt Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2007 Embedtronics Oy
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Ichiro FUKUHARA.
     18  * 4. The name of the company nor the name of the author may be used to
     19  *    endorse or promote products derived from this software without specific
     20  *    prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  */
     34 
     35 #ifndef _AT91DBGUREG_H_
     36 #define _AT91DBGUREG_H_
     37 
     38 #define	AT91DBGU_BASE	0xFFFFF200	/* DBGU unit base addresses (physical) */
     39 #define	AT91DBGU_SIZE	0x200		/* DBGU peripheral address space size */
     40 
     41 #define	DBGU_CR		0x00UL	/* Control Register			*/
     42 #define	DBGU_MR		0x04UL	/* Mode Register			*/
     43 #define	DBGU_IER	0x08UL	/* Interrupt Enable Register		*/
     44 #define	DBGU_IDR	0x0CUL	/* Interrupt Disable Register		*/
     45 #define	DBGU_IMR	0x10UL	/* Interrupt Mask Register		*/
     46 #define	DBGU_SR		0x14UL	/* Status Register               	*/
     47 #define	DBGU_RHR        0x18UL	/* Receive Holding Register      	*/
     48 #define	DBGU_THR	0x1CUL	/* Transmit Holding Register     	*/
     49 #define	DBGU_BRGR	0x20UL	/* Baud Rate Generator Register  	*/
     50 #define	DBGU_CIDR	0x40UL	/* Chip ID Register              	*/
     51 #define DBGU_EXID	0x44UL	/* Chip ID Extension Register		*/
     52 #define	DBGU_FNR	0x48UL	/* Force NTRST Register     		*/
     53 #define	DBGU_PDC	0x100UL
     54 
     55 /* Control Register bits: */
     56 #define	DBGU_CR_RSTSTA		0x100	/* 1 = reset the status bits	*/
     57 #define	DBGU_CR_TXDIS		0x080	/* 1 = disable transmitter	*/
     58 #define	DBGU_CR_TXEN		0x040	/* 1 = enable transmitter	*/
     59 #define	DBGU_CR_RXDIS		0x020	/* 1 = disable receiver		*/
     60 #define	DBGU_CR_RXEN		0x010	/* 1 = enable receiver		*/
     61 #define	DBGU_CR_RSTTX		0x008	/* 1 = reset transmitter	*/
     62 #define	DBGU_CR_RSTRX		0x004	/* 1 = reset receiver		*/
     63 
     64 /* Mode Register bits: */
     65 #define	DBGU_MR_CHMODE		0xC000	/* channel mode			*/
     66 #define	DBGU_MR_CHMOD_NORMAL	0x0000
     67 #define	DBGU_MR_CHMOD_ECHO	0x4000
     68 #define	DBGU_MR_CHMOD_LOCAL_LOOP 0x8000
     69 #define	DBGU_MR_CHMOD_REMOTE_LOOP 0xC000
     70 
     71 #define	DBGU_MR_PAR		0x0E00	/* parity type			*/
     72 #define	DBGU_MR_PAR_EVEN	0x0000
     73 #define	DBGU_MR_PAR_ODD		0x0200
     74 #define	DBGU_MR_PAR_SPACE	0x0400
     75 #define	DBGU_MR_PAR_MARK	0x0600
     76 #define	DBGU_MR_PAR_NONE	0x0800
     77 
     78 /* Interrupt bits: */
     79 #define	DBGU_INT_COMMRX		0x80000000
     80 #define	DBGU_INT_COMMTX		0x40000000
     81 #define	DBGU_INT_RXBUFF		0x00001000
     82 #define	DBGU_INT_TXBUFE		0x00000800
     83 #define	DBGU_INT_TXEMPTY	0x00000200
     84 #define	DBGU_INT_PARE		0x00000080
     85 #define	DBGU_INT_FRAME		0x00000040
     86 #define	DBGU_INT_OVRE		0x00000020
     87 #define	DBGU_INT_ENDTX		0x00000010
     88 #define	DBGU_INT_ENDRX		0x00000008
     89 #define	DBGU_INT_TXRDY		0x00000002
     90 #define	DBGU_INT_RXRDY		0x00000001
     91 
     92 /* Status register bits: */
     93 #define	DBGU_SR_COMMRX		0x80000000
     94 #define	DBGU_SR_COMMTX		0x40000000
     95 #define	DBGU_SR_RXBUFF		0x00001000
     96 #define	DBGU_SR_TXBUFE		0x00000800
     97 #define	DBGU_SR_TXEMPTY		0x00000200
     98 #define	DBGU_SR_PARE		0x00000080
     99 #define	DBGU_SR_FRAME		0x00000040
    100 #define	DBGU_SR_OVRE		0x00000020
    101 #define	DBGU_SR_ENDTX		0x00000010
    102 #define	DBGU_SR_ENDRX		0x00000008
    103 #define	DBGU_SR_TXRDY		0x00000002
    104 #define	DBGU_SR_RXRDY		0x00000001
    105 
    106 
    107 /* Chip ID Register bits: */
    108 #define	DBGU_CIDR_EXT		0x80000000	/* 1 = Extended Chip ID exists */
    109 
    110 #define	DBGU_CIDR_NVPTYP	0x70000000	/* Nonvolatile Pgm Mem Type */
    111 #define	DBGU_CIDR_NVPTYP_ROM	0x00000000
    112 #define	DBGU_CIDR_NVPTYP_ROMLESS 0x10000000
    113 #define	DBGU_CIDR_NVPTYP_SRAM	0x40000000
    114 #define	DBGU_CIDR_NVPTYP_FLASH	0x20000000
    115 #define	DBGU_CIDR_NVTYP_ROM_FLASH 0x30000000	/* NVPSIZ is ROM size, NVPSIZ2 is Flash Size */
    116 
    117 #define	DBGU_CIDR_ARCH		0x0FF00000	/* Architecture identifier	*/
    118 #define	DBGU_CIDR_ARCH_AT91SAM9XX 0x01900000	/* AT91SAM9xx Series */
    119 #define	DBGU_CIDR_ARCH_AT91SAM9XEXX 0x02900000	/* AT91SAM9XExx Series */
    120 #define	DBGU_CIDR_ARCH_AT91X34	0x03400000	/* AT91x34 Series */
    121 #define	DBGU_CIDR_ARCH_CAP9	0x03900000	/* CAP9 Series */
    122 #define	DBGU_CIDR_ARCH_AT91X40	0x04000000	/* AT91x40 Series */
    123 #define	DBGU_CIDR_ARCH_AT91X42	0x04200000	/* AT91x42 Series */
    124 #define	DBGU_CIDR_ARCH_AT91X55	0x05500000	/* AT91x55 Series */
    125 #define	DBGU_CIDR_ARCH_AT91SAM7AXX 0x06000000	/* AT91SAM7Axx Series */
    126 #define	DBGU_CIDR_ARCH_AT91X63	0x06300000	/* AT91x63 Series */
    127 #define	DBGU_CIDR_ARCH_AT91SAM7SXX 0x07000000	/* AT91SAM7Sxx Series */
    128 #define	DBGU_CIDR_ARCH_AT91SAM7XCXX 0x07100000	/* AT91SAM7XCxx Series */
    129 #define	DBGU_CIDR_ARCH_AT91SAM7SEXX 0x07200000	/* AT91SAM7SExx Series */
    130 #define	DBGU_CIDR_ARCH_AT91SAM7LXX 0x07300000	/* AT91SAM7LExx Series */
    131 #define	DBGU_CIDR_ARCH_AT91SAM7XXX 0x07500000	/* AT91SAM7Xxx Series */
    132 #define	DBGU_CIDR_ARCH_AT91X92	0x09200000	/* AT91x92 Series */
    133 #define	DBGU_CIDR_ARCH_AT75CXX	0x0F000000	/* AT75Cxx Series */
    134 
    135 #define	DBGU_CIDR_SRAMSIZ	0x000F0000	/* Internal SRAM Size	*/
    136 #define	DBGU_CIDR_SRAMSIZ_1K	0x00010000
    137 #define	DBGU_CIDR_SRAMSIZ_2K	0x00020000
    138 #define	DBGU_CIDR_SRAMSIZ_4K	0x00050000
    139 #define	DBGU_CIDR_SRAMSIZ_8K	0x00080000
    140 #define	DBGU_CIDR_SRAMSIZ_16K	0x00090000
    141 #define	DBGU_CIDR_SRAMSIZ_32K	0x000A0000
    142 #define	DBGU_CIDR_SRAMSIZ_64K	0x000B0000
    143 #define	DBGU_CIDR_SRAMSIZ_128K	0x000C0000
    144 #define	DBGU_CIDR_SRAMSIZ_256K	0x000D0000
    145 #define	DBGU_CIDR_SRAMSIZ_96K	0x000E0000
    146 #define	DBGU_CIDR_SRAMSIZ_512K	0x000F0000
    147 
    148 #define	DBGU_CIDR_NVPSIZ	0x00000F00	/* Nonvolatile Pgm Mem Size */
    149 #define	DBGU_CIDR_NVPSIZ_NONE	0x00000000
    150 #define	DBGU_CIDR_NVPSIZ_8K	0x00000100
    151 #define	DBGU_CIDR_NVPSIZ_16K	0x00000200
    152 #define	DBGU_CIDR_NVPSIZ_32K	0x00000300
    153 #define	DBGU_CIDR_NVPSIZ_64K	0x00000500
    154 #define	DBGU_CIDR_NVPSIZ_128K	0x00000700
    155 #define	DBGU_CIDR_NVPSIZ_256K	0x00000900
    156 #define	DBGU_CIDR_NVPSIZ_512K	0x00000A00
    157 #define	DBGU_CIDR_NVPSIZ_1024K	0x00000C00
    158 #define	DBGU_CIDR_NVPSIZ_2048K	0x00000E00
    159 
    160 #define	DBGU_CIDR_NPVSIZ2	0x0000F000	/* Nonvolatile Pgm 2 Mem Size */
    161 #define	DBGU_CIDR_NVPSIZ2_NONE	0x00000000
    162 #define	DBGU_CIDR_NVPSIZ2_8K	0x00001000
    163 #define	DBGU_CIDR_NVPSIZ2_16K	0x00002000
    164 #define	DBGU_CIDR_NVPSIZ2_32K	0x00003000
    165 #define	DBGU_CIDR_NVPSIZ2_64K	0x00005000
    166 #define	DBGU_CIDR_NVPSIZ2_128K	0x00007000
    167 #define	DBGU_CIDR_NVPSIZ2_256K	0x00009000
    168 #define	DBGU_CIDR_NVPSIZ2_512K	0x0000A000
    169 #define	DBGU_CIDR_NVPSIZ2_1024K	0x0000C000
    170 #define	DBGU_CIDR_NVPSIZ2_2048K	0x0000E000
    171 
    172 #define	DBGU_CIDR_EPROC		0x000000E0	/* Embedded Processor ID */
    173 #define	DBGU_CIDR_EPROC_946ES	0x00000020
    174 #define	DBGU_CIDR_EPROC_7TDMI	0x00000040
    175 #define	DBGU_CIDR_EPROC_920T	0x00000080
    176 #define	DBGU_CIDR_EPROC_926EJS	0x000000E0
    177 
    178 #define	DBGU_CIDR_VERSION	0x0000001F	/* version of the device */
    179 
    180 #define	DBGU_CIDR_AT91RM9200	0x09290781
    181 #define	DBGU_CIDR_AT91SAM9260	0x019803A0
    182 #define	DBGU_CIDR_AT91SAM9261	0x019703A0
    183 #define	DBGU_CIDR_AT91SAM9263	0x019607A0
    184 
    185 #define	AT91RM9200_CHIP_ID	DBGU_CIDR_AT91RM9200
    186 #define	AT91SAM9260_CHIP_ID	DBGU_CIDR_AT91SAM9260
    187 #define	AT91SAM9261_CHIP_ID	DBGU_CIDR_AT91SAM9261
    188 #define	AT91SAM9263_CHIP_ID	DBGU_CIDR_AT91SAM9263
    189 
    190 #define	DBGUREG(reg)		*((volatile u_int32_t*)(AT91DBGU_BASE + (reg)))
    191 
    192 #define	DBGU_INIT(mstclk, speed) do {					\
    193   DBGUREG(DBGU_PDC + PDC_PTCR) = PDC_PTCR_TXTDIS | PDC_PTCR_RXTDIS;	\
    194   DBGUREG(DBGU_BRGR) = ((mstclk) / 16 + (speed) / 2) / (speed);		\
    195   DBGUREG(DBGU_MR) = DBGU_MR_PAR_NONE;					\
    196   DBGUREG(DBGU_CR) = DBGU_CR_RSTSTA | DBGU_CR_RSTTX | DBGU_CR_RSTRX;	\
    197   DBGUREG(DBGU_CR) = DBGU_CR_TXEN | DBGU_CR_RXEN;			\
    198   (void)DBGUREG(DBGU_SR);						\
    199 } while (/*CONSTCOND*/0)
    200 
    201 #define	DBGU_PUTC(ch) do {						\
    202   int s = splserial();							\
    203   while ((DBGUREG(DBGU_SR) & DBGU_SR_TXRDY) == 0) {			\
    204     splx(s); s = splserial();						\
    205   };									\
    206   DBGUREG(DBGU_THR) = ch;						\
    207   splx(s);								\
    208 } while (/*CONSTCOND*/0)
    209 
    210 #define	DBGU_PEEKC() ((DBGUREG(DBGU_SR) & DBGU_SR_RXRDY) ? DBGUREG(DBGU_RHR) : -1)
    211 
    212 #define	DBGU_PUTS(string) do {						\
    213   const char *_ptr = (string);						\
    214   while (*_ptr) {							\
    215     DBGU_PUTC(*_ptr);							\
    216     _ptr++;								\
    217   }									\
    218 } while (/*CONSTCOND*/0)
    219 
    220 #endif	// _AT91DBGUREG_H_
    221 
    222