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-rw-r--r--include/asm-mn10300/unit-asb2303/clock.h45
-rw-r--r--include/asm-mn10300/unit-asb2303/leds.h43
-rw-r--r--include/asm-mn10300/unit-asb2303/serial.h136
-rw-r--r--include/asm-mn10300/unit-asb2303/smc91111.h50
-rw-r--r--include/asm-mn10300/unit-asb2303/timex.h135
5 files changed, 409 insertions, 0 deletions
diff --git a/include/asm-mn10300/unit-asb2303/clock.h b/include/asm-mn10300/unit-asb2303/clock.h
new file mode 100644
index 000000000000..8b450e920af1
--- /dev/null
+++ b/include/asm-mn10300/unit-asb2303/clock.h
@@ -0,0 +1,45 @@
1/* ASB2303-specific clocks
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#ifndef _ASM_UNIT_CLOCK_H
13#define _ASM_UNIT_CLOCK_H
14
15#ifndef __ASSEMBLY__
16
17#ifdef CONFIG_MN10300_RTC
18
19extern unsigned long mn10300_ioclk; /* IOCLK (crystal speed) in HZ */
20extern unsigned long mn10300_iobclk;
21extern unsigned long mn10300_tsc_per_HZ;
22
23#define MN10300_IOCLK ((unsigned long)mn10300_ioclk)
24/* If this processors has a another clock, uncomment the below. */
25/* #define MN10300_IOBCLK ((unsigned long)mn10300_iobclk) */
26
27#else /* !CONFIG_MN10300_RTC */
28
29#define MN10300_IOCLK 33333333UL
30/* #define MN10300_IOBCLK 66666666UL */
31
32#endif /* !CONFIG_MN10300_RTC */
33
34#define MN10300_JCCLK MN10300_IOCLK
35#define MN10300_TSCCLK MN10300_IOCLK
36
37#ifdef CONFIG_MN10300_RTC
38#define MN10300_TSC_PER_HZ ((unsigned long)mn10300_tsc_per_HZ)
39#else /* !CONFIG_MN10300_RTC */
40#define MN10300_TSC_PER_HZ (MN10300_TSCCLK/HZ)
41#endif /* !CONFIG_MN10300_RTC */
42
43#endif /* !__ASSEMBLY__ */
44
45#endif /* _ASM_UNIT_CLOCK_H */
diff --git a/include/asm-mn10300/unit-asb2303/leds.h b/include/asm-mn10300/unit-asb2303/leds.h
new file mode 100644
index 000000000000..3a7543ea7b5c
--- /dev/null
+++ b/include/asm-mn10300/unit-asb2303/leds.h
@@ -0,0 +1,43 @@
1/* ASB2303-specific LEDs
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#ifndef _ASM_UNIT_LEDS_H
13#define _ASM_UNIT_LEDS_H
14
15#include <asm/pio-regs.h>
16#include <asm/cpu-regs.h>
17#include <asm/exceptions.h>
18
19#define ASB2303_GPIO0DEF __SYSREG(0xDB000000, u32)
20#define ASB2303_7SEGLEDS __SYSREG(0xDB000008, u32)
21
22/*
23 * use the 7-segment LEDs to indicate states
24 */
25
26/* flip the 7-segment LEDs between "G" and "-" */
27#define mn10300_set_gdbleds(ONOFF) \
28do { \
29 ASB2303_7SEGLEDS = (ONOFF) ? 0x85 : 0x7f; \
30} while (0)
31
32/* indicate double-fault by displaying "d" on the LEDs */
33#define mn10300_set_dbfleds \
34 mov 0x43,d0 ; \
35 movbu d0,(ASB2303_7SEGLEDS)
36
37#ifndef __ASSEMBLY__
38extern void peripheral_leds_display_exception(enum exception_code code);
39extern void peripheral_leds_led_chase(void);
40extern void debug_to_serial(const char *p, int n);
41#endif /* __ASSEMBLY__ */
42
43#endif /* _ASM_UNIT_LEDS_H */
diff --git a/include/asm-mn10300/unit-asb2303/serial.h b/include/asm-mn10300/unit-asb2303/serial.h
new file mode 100644
index 000000000000..0d55cf5896ac
--- /dev/null
+++ b/include/asm-mn10300/unit-asb2303/serial.h
@@ -0,0 +1,136 @@
1/* ASB2303-specific 8250 serial ports
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#ifndef _ASM_UNIT_SERIAL_H
13#define _ASM_UNIT_SERIAL_H
14
15#include <asm/cpu-regs.h>
16#include <asm/proc/irq.h>
17#include <linux/serial_reg.h>
18
19#define SERIAL_PORT0_BASE_ADDRESS 0xA6FB0000
20#define SERIAL_PORT1_BASE_ADDRESS 0xA6FC0000
21
22#define SERIAL_IRQ XIRQ0 /* Dual serial (PC16552) (Hi) */
23
24/*
25 * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports
26 */
27#ifndef CONFIG_GDBSTUB_ON_TTYSx
28
29#define SERIAL_PORT_DFNS \
30 { \
31 .baud_base = BASE_BAUD, \
32 .irq = SERIAL_IRQ, \
33 .flags = STD_COM_FLAGS, \
34 .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \
35 .iomem_reg_shift = 2, \
36 .io_type = SERIAL_IO_MEM, \
37 }, \
38 { \
39 .baud_base = BASE_BAUD, \
40 .irq = SERIAL_IRQ, \
41 .flags = STD_COM_FLAGS, \
42 .iomem_base = (u8 *) SERIAL_PORT1_BASE_ADDRESS, \
43 .iomem_reg_shift = 2, \
44 .io_type = SERIAL_IO_MEM, \
45 },
46
47#ifndef __ASSEMBLY__
48
49static inline void __debug_to_serial(const char *p, int n)
50{
51}
52
53#endif /* !__ASSEMBLY__ */
54
55#else /* CONFIG_GDBSTUB_ON_TTYSx */
56
57#define SERIAL_PORT_DFNS /* both stolen by gdb-stub because they share an IRQ */
58
59#if defined(CONFIG_GDBSTUB_ON_TTYS0)
60#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8)
61#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8)
62#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8)
63#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8)
64#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8)
65#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8)
66#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8)
67#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8)
68#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8)
69#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8)
70#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8)
71#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8)
72#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
73
74#elif defined(CONFIG_GDBSTUB_ON_TTYS1)
75#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_RX * 4, u8)
76#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_TX * 4, u8)
77#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLL * 4, u8)
78#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLM * 4, u8)
79#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IER * 4, u8)
80#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IIR * 4, u8)
81#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_FCR * 4, u8)
82#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LCR * 4, u8)
83#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MCR * 4, u8)
84#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LSR * 4, u8)
85#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MSR * 4, u8)
86#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_SCR * 4, u8)
87#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
88#endif
89
90#ifndef __ASSEMBLY__
91
92#define LSR_WAIT_FOR(STATE) \
93do { \
94 while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE)) {} \
95} while (0)
96#define FLOWCTL_WAIT_FOR(LINE) \
97do { \
98 while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE)) {} \
99} while (0)
100#define FLOWCTL_CLEAR(LINE) \
101do { \
102 GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; \
103} while (0)
104#define FLOWCTL_SET(LINE) \
105do { \
106 GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; \
107} while (0)
108#define FLOWCTL_QUERY(LINE) ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; })
109
110static inline void __debug_to_serial(const char *p, int n)
111{
112 char ch;
113
114 FLOWCTL_SET(DTR);
115
116 for (; n > 0; n--) {
117 LSR_WAIT_FOR(THRE);
118 FLOWCTL_WAIT_FOR(CTS);
119
120 ch = *p++;
121 if (ch == 0x0a) {
122 GDBPORT_SERIAL_TX = 0x0d;
123 LSR_WAIT_FOR(THRE);
124 FLOWCTL_WAIT_FOR(CTS);
125 }
126 GDBPORT_SERIAL_TX = ch;
127 }
128
129 FLOWCTL_CLEAR(DTR);
130}
131
132#endif /* !__ASSEMBLY__ */
133
134#endif /* CONFIG_GDBSTUB_ON_TTYSx */
135
136#endif /* _ASM_UNIT_SERIAL_H */
diff --git a/include/asm-mn10300/unit-asb2303/smc91111.h b/include/asm-mn10300/unit-asb2303/smc91111.h
new file mode 100644
index 000000000000..dd456e9c513f
--- /dev/null
+++ b/include/asm-mn10300/unit-asb2303/smc91111.h
@@ -0,0 +1,50 @@
1/* Support for the SMC91C111 NIC on an ASB2303
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_UNIT_SMC91111_H
12#define _ASM_UNIT_SMC91111_H
13
14#include <asm/intctl-regs.h>
15
16#define SMC91111_BASE 0xAA000300UL
17#define SMC91111_BASE_END 0xAA000400UL
18#define SMC91111_IRQ XIRQ3
19
20#define SMC_CAN_USE_8BIT 0
21#define SMC_CAN_USE_16BIT 1
22#define SMC_CAN_USE_32BIT 0
23#define SMC_NOWAIT 1
24#define SMC_IRQ_FLAGS (0)
25
26#if SMC_CAN_USE_8BIT
27#define SMC_inb(a, r) inb((unsigned long) ((a) + (r)))
28#define SMC_outb(v, a, r) outb(v, (unsigned long) ((a) + (r)))
29#endif
30
31#if SMC_CAN_USE_16BIT
32#define SMC_inw(a, r) inw((unsigned long) ((a) + (r)))
33#define SMC_outw(v, a, r) outw(v, (unsigned long) ((a) + (r)))
34#define SMC_insw(a, r, p, l) insw((unsigned long) ((a) + (r)), (p), (l))
35#define SMC_outsw(a, r, p, l) outsw((unsigned long) ((a) + (r)), (p), (l))
36#endif
37
38#if SMC_CAN_USE_32BIT
39#define SMC_inl(a, r) inl((unsigned long) ((a) + (r)))
40#define SMC_outl(v, a, r) outl(v, (unsigned long) ((a) + (r)))
41#define SMC_insl(a, r, p, l) insl((unsigned long) ((a) + (r)), (p), (l))
42#define SMC_outsl(a, r, p, l) outsl((unsigned long) ((a) + (r)), (p), (l))
43#endif
44
45#define RPC_LSA_DEFAULT RPC_LED_100_10
46#define RPC_LSB_DEFAULT RPC_LED_TX_RX
47
48#define set_irq_type(irq, type)
49
50#endif /* _ASM_UNIT_SMC91111_H */
diff --git a/include/asm-mn10300/unit-asb2303/timex.h b/include/asm-mn10300/unit-asb2303/timex.h
new file mode 100644
index 000000000000..7e54b0cfdd03
--- /dev/null
+++ b/include/asm-mn10300/unit-asb2303/timex.h
@@ -0,0 +1,135 @@
1/* ASB2303-specific timer specifcations
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_UNIT_TIMEX_H
12#define _ASM_UNIT_TIMEX_H
13
14#ifndef __ASSEMBLY__
15#include <linux/irq.h>
16#endif /* __ASSEMBLY__ */
17
18#include <asm/timer-regs.h>
19#include <asm/unit/clock.h>
20
21/*
22 * jiffies counter specifications
23 */
24
25#define TMJCBR_MAX 0xffff
26#define TMJCBC TM01BC
27
28#define TMJCMD TM01MD
29#define TMJCBR TM01BR
30#define TMJCIRQ TM1IRQ
31#define TMJCICR TM1ICR
32#define TMJCICR_LEVEL GxICR_LEVEL_5
33
34#ifndef __ASSEMBLY__
35
36static inline void startup_jiffies_counter(void)
37{
38 unsigned rate;
39 u16 md, t16;
40
41 /* use as little prescaling as possible to avoid losing accuracy */
42 md = TM0MD_SRC_IOCLK;
43 rate = MN10300_JCCLK / HZ;
44
45 if (rate > TMJCBR_MAX) {
46 md = TM0MD_SRC_IOCLK_8;
47 rate = MN10300_JCCLK / 8 / HZ;
48
49 if (rate > TMJCBR_MAX) {
50 md = TM0MD_SRC_IOCLK_32;
51 rate = MN10300_JCCLK / 32 / HZ;
52
53 if (rate > TMJCBR_MAX)
54 BUG();
55 }
56 }
57
58 TMJCBR = rate - 1;
59 t16 = TMJCBR;
60
61 TMJCMD =
62 md |
63 TM1MD_SRC_TM0CASCADE << 8 |
64 TM0MD_INIT_COUNTER |
65 TM1MD_INIT_COUNTER << 8;
66
67 TMJCMD =
68 md |
69 TM1MD_SRC_TM0CASCADE << 8 |
70 TM0MD_COUNT_ENABLE |
71 TM1MD_COUNT_ENABLE << 8;
72
73 t16 = TMJCMD;
74
75 TMJCICR |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
76 t16 = TMJCICR;
77}
78
79static inline void shutdown_jiffies_counter(void)
80{
81}
82
83#endif /* !__ASSEMBLY__ */
84
85
86/*
87 * timestamp counter specifications
88 */
89
90#define TMTSCBR_MAX 0xffffffff
91#define TMTSCBC TM45BC
92
93#ifndef __ASSEMBLY__
94
95static inline void startup_timestamp_counter(void)
96{
97 /* set up timer 4 & 5 cascaded as a 32-bit counter to count real time
98 * - count down from 4Gig-1 to 0 and wrap at IOCLK rate
99 */
100 TM45BR = TMTSCBR_MAX;
101
102 TM4MD = TM4MD_SRC_IOCLK;
103 TM4MD |= TM4MD_INIT_COUNTER;
104 TM4MD &= ~TM4MD_INIT_COUNTER;
105 TM4ICR = 0;
106
107 TM5MD = TM5MD_SRC_TM4CASCADE;
108 TM5MD |= TM5MD_INIT_COUNTER;
109 TM5MD &= ~TM5MD_INIT_COUNTER;
110 TM5ICR = 0;
111
112 TM5MD |= TM5MD_COUNT_ENABLE;
113 TM4MD |= TM4MD_COUNT_ENABLE;
114}
115
116static inline void shutdown_timestamp_counter(void)
117{
118 TM4MD = 0;
119 TM5MD = 0;
120}
121
122/*
123 * we use a cascaded pair of 16-bit down-counting timers to count I/O
124 * clock cycles for the purposes of time keeping
125 */
126typedef unsigned long cycles_t;
127
128static inline cycles_t read_timestamp_counter(void)
129{
130 return (cycles_t)TMTSCBC;
131}
132
133#endif /* !__ASSEMBLY__ */
134
135#endif /* _ASM_UNIT_TIMEX_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 15:48:30 -0500