aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-v850/anna.h
blob: 3be77d5ecfce38c9d9efec628c529582083ef92f (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*
 * include/asm-v850/anna.h -- Anna V850E2 evaluation cpu chip/board
 *
 *  Copyright (C) 2001,02,03  NEC Electronics Corporation
 *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License.  See the file COPYING in the main directory of this
 * archive for more details.
 *
 * Written by Miles Bader <miles@gnu.org>
 */

#ifndef __V850_ANNA_H__
#define __V850_ANNA_H__

#include <asm/v850e2.h>		/* Based on V850E2 core.  */


#define CPU_MODEL	"v850e2/anna"
#define CPU_MODEL_LONG	"NEC V850E2/Anna"
#define PLATFORM	"anna"
#define PLATFORM_LONG	"NEC/Midas lab V850E2/Anna evaluation board"

#define CPU_CLOCK_FREQ	200000000 /*  200MHz */
#define SYS_CLOCK_FREQ	 33300000 /* 33.3MHz */


/* 1MB of static RAM.  This memory is mirrored 64 times.  */
#define SRAM_ADDR	0x04000000
#define SRAM_SIZE	0x00100000 /* 1MB */
/* 64MB of DRAM.  */
#define SDRAM_ADDR	0x08000000	
#define SDRAM_SIZE	0x04000000 /* 64MB */


/* For <asm/page.h> */
#define PAGE_OFFSET 	SRAM_ADDR

/* We use on-chip RAM, for a few miscellaneous variables that must be
   accessible using a load instruction relative to R0.  The Anna chip has
   128K of `dLB' ram nominally located at 0xFFF00000, but it's mirrored
   every 128K, so we can use the `last mirror' (except for the portion at
   the top which is overridden by I/O space).  In addition, the early
   sample chip we're using has lots of memory errors in the dLB ram, so we
   use a specially chosen location that has at least 20 bytes of contiguous
   valid memory (xxxF0020 - xxxF003F).  */
#define R0_RAM_ADDR			0xFFFF8020


/* Anna specific control registers.  */
#define ANNA_ILBEN_ADDR			0xFFFFF7F2
#define ANNA_ILBEN			(*(volatile u16 *)ANNA_ILBEN_ADDR)


/* I/O port P0-P3. */
/* Direct I/O.  Bits 0-7 are pins Pn0-Pn7.  */
#define ANNA_PORT_IO_ADDR(n)		(0xFFFFF400 + (n) * 2)
#define ANNA_PORT_IO(n)			(*(volatile u8 *)ANNA_PORT_IO_ADDR(n))
/* Port mode (for direct I/O, 0 = output, 1 = input).  */
#define ANNA_PORT_PM_ADDR(n)		(0xFFFFF410 + (n) * 2)
#define ANNA_PORT_PM(n)			(*(volatile u8 *)ANNA_PORT_PM_ADDR(n))


/* Hardware-specific interrupt numbers (in the kernel IRQ namespace).  */
#define IRQ_INTP(n)	(n)	/* Pnnn (pin) interrupts 0-15 */
#define IRQ_INTP_NUM	16
#define IRQ_INTOV(n)	(0x10 + (n)) /* 0-2 */
#define IRQ_INTOV_NUM	2
#define IRQ_INTCCC(n)	(0x12 + (n))
#define IRQ_INTCCC_NUM	4
#define IRQ_INTCMD(n)	(0x16 + (n)) /* interval timer interrupts 0-5 */
#define IRQ_INTCMD_NUM	6
#define IRQ_INTDMA(n)	(0x1C + (n)) /* DMA interrupts 0-3 */
#define IRQ_INTDMA_NUM	4
#define IRQ_INTDMXER	0x20
#define IRQ_INTSRE(n)	(0x21 + (n)*3) /* UART 0-1 reception error */
#define IRQ_INTSRE_NUM	2
#define IRQ_INTSR(n)	(0x22 + (n)*3) /* UART 0-1 reception completion */
#define IRQ_INTSR_NUM	2
#define IRQ_INTST(n)	(0x23 + (n)*3) /* UART 0-1 transmission completion */
#define IRQ_INTST_NUM	2

#define NUM_CPU_IRQS	64

#ifndef __ASSEMBLY__
/* Initialize chip interrupts.  */
extern void anna_init_irqs (void);
#endif


/* Anna UART details (basically the same as the V850E/MA1, but 2 channels).  */
#define V850E_UART_NUM_CHANNELS		2
#define V850E_UART_BASE_FREQ		(SYS_CLOCK_FREQ / 2)
#define V850E_UART_CHIP_NAME 		"V850E2/NA85E2A"

/* This is the UART channel that's actually connected on the board.  */
#define V850E_UART_CONSOLE_CHANNEL	1

/* This is a function that gets called before configuring the UART.  */
#define V850E_UART_PRE_CONFIGURE	anna_uart_pre_configure
#ifndef __ASSEMBLY__
extern void anna_uart_pre_configure (unsigned chan,
				     unsigned cflags, unsigned baud);
#endif

/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */

/* CTS for UART channel 1 is pin P37 (bit 7 of port 3).  */
#define V850E_UART_CTS(chan)	((chan) == 1 ? !(ANNA_PORT_IO(3) & 0x80) : 1)
/* RTS for UART channel 1 is pin P07 (bit 7 of port 0).  */
#define V850E_UART_SET_RTS(chan, val)					      \
   do {									      \
	   if (chan == 1) {						      \
		   unsigned old = ANNA_PORT_IO(0); 			      \
		   if (val)						      \
			   ANNA_PORT_IO(0) = old & ~0x80;		      \
		   else							      \
			   ANNA_PORT_IO(0) = old | 0x80;		      \
	   }								      \
   } while (0)


/* Timer C details.  */
#define V850E_TIMER_C_BASE_ADDR		0xFFFFF600

/* Timer D details (the Anna actually has 5 of these; should change later). */
#define V850E_TIMER_D_BASE_ADDR		0xFFFFF540
#define V850E_TIMER_D_TMD_BASE_ADDR 	(V850E_TIMER_D_BASE_ADDR + 0x0)
#define V850E_TIMER_D_CMD_BASE_ADDR 	(V850E_TIMER_D_BASE_ADDR + 0x2)
#define V850E_TIMER_D_TMCD_BASE_ADDR 	(V850E_TIMER_D_BASE_ADDR + 0x4)

#define V850E_TIMER_D_BASE_FREQ		SYS_CLOCK_FREQ
#define V850E_TIMER_D_TMCD_CS_MIN	1 /* min 2^1 divider */


/* For <asm/param.h> */
#ifndef HZ
#define HZ	100
#endif


#endif /* __V850_ANNA_H__ */