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-rw-r--r--arch/m68k/Kconfig6
-rw-r--r--arch/m68k/configs/mac_defconfig2
-rw-r--r--arch/m68k/configs/multi_defconfig1
-rw-r--r--arch/m68k/include/asm/machw.h25
-rw-r--r--arch/m68k/include/asm/macints.h22
-rw-r--r--arch/m68k/mac/Makefile2
-rw-r--r--arch/m68k/mac/config.c51
-rw-r--r--arch/m68k/mac/debug.c365
-rw-r--r--arch/m68k/mac/macints.c101
-rw-r--r--arch/m68k/mac/oss.c20
-rw-r--r--arch/m68k/mac/via.c7
11 files changed, 80 insertions, 522 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index ecdc19a299b2..b5da298ba61d 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -536,10 +536,6 @@ config GVPIOEXT_PLIP
536 Say Y to enable doing IP over the parallel port on your GVP 536 Say Y to enable doing IP over the parallel port on your GVP
537 IO-Extender card, N otherwise. 537 IO-Extender card, N otherwise.
538 538
539config MAC_SCC
540 tristate "Macintosh serial support"
541 depends on MAC
542
543config MAC_HID 539config MAC_HID
544 bool 540 bool
545 depends on INPUT_ADBHID 541 depends on INPUT_ADBHID
@@ -595,7 +591,7 @@ config DN_SERIAL
595 591
596config SERIAL_CONSOLE 592config SERIAL_CONSOLE
597 bool "Support for serial port console" 593 bool "Support for serial port console"
598 depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || MAC_SCC=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL) 594 depends on (AMIGA || ATARI || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
599 ---help--- 595 ---help---
600 If you say Y here, it will be possible to use a serial port as the 596 If you say Y here, it will be possible to use a serial port as the
601 system console (the system console is the device which receives all 597 system console (the system console is the device which receives all
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 3cbbf880a9e3..c5f3232ff916 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -839,9 +839,7 @@ CONFIG_HIDRAW=y
839# 839#
840# Character devices 840# Character devices
841# 841#
842CONFIG_MAC_SCC=y
843CONFIG_MAC_HID=y 842CONFIG_MAC_HID=y
844CONFIG_SERIAL_CONSOLE=y
845 843
846# 844#
847# File systems 845# File systems
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index 8a2371933beb..a8bfa3fa71cf 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -987,7 +987,6 @@ CONFIG_ATARI_MIDI=y
987CONFIG_ATARI_DSP56K=m 987CONFIG_ATARI_DSP56K=m
988CONFIG_AMIGA_BUILTIN_SERIAL=y 988CONFIG_AMIGA_BUILTIN_SERIAL=y
989CONFIG_MULTIFACE_III_TTY=m 989CONFIG_MULTIFACE_III_TTY=m
990CONFIG_MAC_SCC=y
991CONFIG_MAC_HID=y 990CONFIG_MAC_HID=y
992CONFIG_MVME147_SCC=y 991CONFIG_MVME147_SCC=y
993CONFIG_SERIAL167=y 992CONFIG_SERIAL167=y
diff --git a/arch/m68k/include/asm/machw.h b/arch/m68k/include/asm/machw.h
index 2b4de0c2ce4a..a22095164927 100644
--- a/arch/m68k/include/asm/machw.h
+++ b/arch/m68k/include/asm/machw.h
@@ -21,29 +21,4 @@
21#define VIDEOMEMSIZE (4096*1024) 21#define VIDEOMEMSIZE (4096*1024)
22#define VIDEOMEMMASK (-4096*1024) 22#define VIDEOMEMMASK (-4096*1024)
23 23
24#ifndef __ASSEMBLY__
25
26#include <linux/types.h>
27
28#if 0
29/*
30** SCC Z8530
31*/
32
33#define MAC_SCC_BAS (0x50F04000)
34struct MAC_SCC
35 {
36 u_char cha_a_ctrl;
37 u_char char_dummy1;
38 u_char cha_a_data;
39 u_char char_dummy2;
40 u_char cha_b_ctrl;
41 u_char char_dummy3;
42 u_char cha_b_data;
43 };
44# define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS))
45#endif
46
47#endif /* __ASSEMBLY__ */
48
49#endif /* linux/machw.h */ 24#endif /* linux/machw.h */
diff --git a/arch/m68k/include/asm/macints.h b/arch/m68k/include/asm/macints.h
index 679c48ab4407..ebe1b70fe90c 100644
--- a/arch/m68k/include/asm/macints.h
+++ b/arch/m68k/include/asm/macints.h
@@ -37,7 +37,6 @@
37 37
38#define VIA1_SOURCE_BASE 8 38#define VIA1_SOURCE_BASE 8
39#define VIA2_SOURCE_BASE 16 39#define VIA2_SOURCE_BASE 16
40#define MAC_SCC_SOURCE_BASE 24
41#define PSC3_SOURCE_BASE 24 40#define PSC3_SOURCE_BASE 24
42#define PSC4_SOURCE_BASE 32 41#define PSC4_SOURCE_BASE 32
43#define PSC5_SOURCE_BASE 40 42#define PSC5_SOURCE_BASE 40
@@ -96,26 +95,12 @@
96#define IRQ_PSC3_2 (26) 95#define IRQ_PSC3_2 (26)
97#define IRQ_PSC3_3 (27) 96#define IRQ_PSC3_3 (27)
98 97
99/* Level 4 (SCC) interrupts */
100#define IRQ_SCC (32)
101#define IRQ_SCCA (33)
102#define IRQ_SCCB (34)
103#if 0 /* FIXME: are there multiple interrupt conditions on the SCC ?? */
104/* SCC interrupts */
105#define IRQ_SCCB_TX (32)
106#define IRQ_SCCB_STAT (33)
107#define IRQ_SCCB_RX (34)
108#define IRQ_SCCB_SPCOND (35)
109#define IRQ_SCCA_TX (36)
110#define IRQ_SCCA_STAT (37)
111#define IRQ_SCCA_RX (38)
112#define IRQ_SCCA_SPCOND (39)
113#endif
114
115/* Level 4 (PSC, AV Macs only) interrupts */ 98/* Level 4 (PSC, AV Macs only) interrupts */
116#define IRQ_PSC4_0 (32) 99#define IRQ_PSC4_0 (32)
117#define IRQ_PSC4_1 (33) 100#define IRQ_PSC4_1 (33)
101#define IRQ_MAC_SCC_A IRQ_PSC4_1
118#define IRQ_PSC4_2 (34) 102#define IRQ_PSC4_2 (34)
103#define IRQ_MAC_SCC_B IRQ_PSC4_2
119#define IRQ_PSC4_3 (35) 104#define IRQ_PSC4_3 (35)
120#define IRQ_MAC_MACE_DMA IRQ_PSC4_3 105#define IRQ_MAC_MACE_DMA IRQ_PSC4_3
121 106
@@ -146,6 +131,9 @@
146#define IRQ_BABOON_2 (66) 131#define IRQ_BABOON_2 (66)
147#define IRQ_BABOON_3 (67) 132#define IRQ_BABOON_3 (67)
148 133
134/* On non-PSC machines, the serial ports share an IRQ */
135#define IRQ_MAC_SCC IRQ_AUTO_4
136
149#define SLOT2IRQ(x) (x + 47) 137#define SLOT2IRQ(x) (x + 47)
150#define IRQ2SLOT(x) (x - 47) 138#define IRQ2SLOT(x) (x - 47)
151 139
diff --git a/arch/m68k/mac/Makefile b/arch/m68k/mac/Makefile
index daebd80bdef0..b8d4c835f9a2 100644
--- a/arch/m68k/mac/Makefile
+++ b/arch/m68k/mac/Makefile
@@ -3,4 +3,4 @@
3# 3#
4 4
5obj-y := config.o macints.o iop.o via.o oss.o psc.o \ 5obj-y := config.o macints.o iop.o via.o oss.o psc.o \
6 baboon.o macboing.o debug.o misc.o 6 baboon.o macboing.o misc.o
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index e6666a30f24b..c8a4c39cef56 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -792,6 +792,32 @@ static struct mac_model mac_data_table[] = {
792 } 792 }
793}; 793};
794 794
795static struct resource scc_a_rsrcs[] = {
796 { .flags = IORESOURCE_MEM },
797 { .flags = IORESOURCE_IRQ },
798};
799
800static struct resource scc_b_rsrcs[] = {
801 { .flags = IORESOURCE_MEM },
802 { .flags = IORESOURCE_IRQ },
803};
804
805struct platform_device scc_a_pdev = {
806 .name = "scc",
807 .id = 0,
808 .num_resources = ARRAY_SIZE(scc_a_rsrcs),
809 .resource = scc_a_rsrcs,
810};
811EXPORT_SYMBOL(scc_a_pdev);
812
813struct platform_device scc_b_pdev = {
814 .name = "scc",
815 .id = 1,
816 .num_resources = ARRAY_SIZE(scc_b_rsrcs),
817 .resource = scc_b_rsrcs,
818};
819EXPORT_SYMBOL(scc_b_pdev);
820
795static void __init mac_identify(void) 821static void __init mac_identify(void)
796{ 822{
797 struct mac_model *m; 823 struct mac_model *m;
@@ -814,6 +840,24 @@ static void __init mac_identify(void)
814 } 840 }
815 } 841 }
816 842
843 /* Set up serial port resources for the console initcall. */
844
845 scc_a_rsrcs[0].start = (resource_size_t) mac_bi_data.sccbase + 2;
846 scc_a_rsrcs[0].end = scc_a_rsrcs[0].start;
847 scc_b_rsrcs[0].start = (resource_size_t) mac_bi_data.sccbase;
848 scc_b_rsrcs[0].end = scc_b_rsrcs[0].start;
849
850 switch (macintosh_config->scc_type) {
851 case MAC_SCC_PSC:
852 scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_MAC_SCC_A;
853 scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC_B;
854 break;
855 default:
856 scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_MAC_SCC;
857 scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC;
858 break;
859 }
860
817 /* 861 /*
818 * We need to pre-init the IOPs, if any. Otherwise 862 * We need to pre-init the IOPs, if any. Otherwise
819 * the serial console won't work if the user had 863 * the serial console won't work if the user had
@@ -872,6 +916,13 @@ int __init mac_platform_init(void)
872 u8 *swim_base; 916 u8 *swim_base;
873 917
874 /* 918 /*
919 * Serial devices
920 */
921
922 platform_device_register(&scc_a_pdev);
923 platform_device_register(&scc_b_pdev);
924
925 /*
875 * Floppy device 926 * Floppy device
876 */ 927 */
877 928
diff --git a/arch/m68k/mac/debug.c b/arch/m68k/mac/debug.c
deleted file mode 100644
index bce074ceb768..000000000000
--- a/arch/m68k/mac/debug.c
+++ /dev/null
@@ -1,365 +0,0 @@
1/*
2 * linux/arch/m68k/mac/debug.c
3 *
4 * Shamelessly stolen (SCC code and general framework) from:
5 *
6 * linux/arch/m68k/atari/debug.c
7 *
8 * Atari debugging and serial console stuff
9 *
10 * Assembled of parts of former atari/config.c 97-12-18 by Roman Hodek
11 *
12 * This file is subject to the terms and conditions of the GNU General Public
13 * License. See the file COPYING in the main directory of this archive
14 * for more details.
15 */
16
17#include <linux/types.h>
18#include <linux/sched.h>
19#include <linux/tty.h>
20#include <linux/console.h>
21#include <linux/init.h>
22#include <linux/delay.h>
23
24#define BOOTINFO_COMPAT_1_0
25#include <asm/setup.h>
26#include <asm/bootinfo.h>
27#include <asm/macints.h>
28
29extern unsigned long mac_videobase;
30extern unsigned long mac_rowbytes;
31
32extern void mac_serial_print(const char *);
33
34#define DEBUG_HEADS
35#undef DEBUG_SCREEN
36#define DEBUG_SERIAL
37
38/*
39 * These two auxiliary debug functions should go away ASAP. Only usage:
40 * before the console output is up (after head.S come some other crucial
41 * setup routines :-) it permits writing 'data' to the screen as bit patterns
42 * (good luck reading those). Helped to figure that the bootinfo contained
43 * garbage data on the amount and size of memory chunks ...
44 *
45 * The 'pos' argument now simply means 'linefeed after print' ...
46 */
47
48#ifdef DEBUG_SCREEN
49static int peng, line;
50#endif
51
52#if 0
53
54void mac_debugging_short(int pos, short num)
55{
56#ifdef DEBUG_SCREEN
57 unsigned char *pengoffset;
58 unsigned char *pptr;
59 int i;
60#endif
61
62#ifdef DEBUG_SERIAL
63 printk("debug: %d !\n", num);
64#endif
65
66#ifdef DEBUG_SCREEN
67 if (!MACH_IS_MAC) {
68 /* printk("debug: %d !\n", num); */
69 return;
70 }
71
72 /* calculate current offset */
73 pengoffset = (unsigned char *)mac_videobase +
74 (150+line*2) * mac_rowbytes + 80 * peng;
75
76 pptr = pengoffset;
77
78 for (i = 0; i < 8 * sizeof(short); i++) { /* # of bits */
79 /* value mask for bit i, reverse order */
80 *pptr++ = (num & (1 << (8*sizeof(short)-i-1)) ? 0xFF : 0x00);
81 }
82
83 peng++;
84
85 if (pos) {
86 line++;
87 peng = 0;
88 }
89#endif
90}
91
92void mac_debugging_long(int pos, long addr)
93{
94#ifdef DEBUG_SCREEN
95 unsigned char *pengoffset;
96 unsigned char *pptr;
97 int i;
98#endif
99
100#ifdef DEBUG_SERIAL
101 printk("debug: #%ld !\n", addr);
102#endif
103
104#ifdef DEBUG_SCREEN
105 if (!MACH_IS_MAC) {
106 /* printk("debug: #%ld !\n", addr); */
107 return;
108 }
109
110 pengoffset=(unsigned char *)(mac_videobase+(150+line*2)*mac_rowbytes)
111 +80*peng;
112
113 pptr = pengoffset;
114
115 for (i = 0; i < 8 * sizeof(long); i++) { /* # of bits */
116 *pptr++ = (addr & (1 << (8*sizeof(long)-i-1)) ? 0xFF : 0x00);
117 }
118
119 peng++;
120
121 if (pos) {
122 line++;
123 peng = 0;
124 }
125#endif
126}
127
128#endif /* 0 */
129
130#ifdef DEBUG_SERIAL
131/*
132 * TODO: serial debug code
133 */
134
135struct mac_SCC {
136 u_char cha_b_ctrl;
137 u_char char_dummy1;
138 u_char cha_a_ctrl;
139 u_char char_dummy2;
140 u_char cha_b_data;
141 u_char char_dummy3;
142 u_char cha_a_data;
143};
144
145# define scc (*((volatile struct mac_SCC*)mac_bi_data.sccbase))
146
147static int scc_port = -1;
148
149static struct console mac_console_driver = {
150 .name = "debug",
151 .flags = CON_PRINTBUFFER,
152 .index = -1,
153};
154
155/*
156 * Crude hack to get console output to the screen before the framebuffer
157 * is initialized (happens a lot later in 2.1!).
158 * We just use the console routines declared in head.S, this will interfere
159 * with regular framebuffer console output and should be used exclusively
160 * to debug kernel problems manifesting before framebuffer init (aka WSOD)
161 *
162 * To keep this hack from interfering with the regular console driver, either
163 * deregister this driver before/on framebuffer console init, or silence this
164 * function after the fbcon driver is running (will lose console messages!?).
165 * To debug real early bugs, need to write a 'mac_register_console_hack()'
166 * that is called from start_kernel() before setup_arch() and just registers
167 * this driver if Mac.
168 */
169
170static void mac_debug_console_write(struct console *co, const char *str,
171 unsigned int count)
172{
173 mac_serial_print(str);
174}
175
176
177
178/* Mac: loops_per_jiffy min. 19000 ^= .5 us; MFPDELAY was 0.6 us*/
179
180#define uSEC 1
181
182static inline void mac_sccb_out(char c)
183{
184 int i;
185
186 do {
187 for (i = uSEC; i > 0; --i)
188 barrier();
189 } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */
190 for (i = uSEC; i > 0; --i)
191 barrier();
192 scc.cha_b_data = c;
193}
194
195static inline void mac_scca_out(char c)
196{
197 int i;
198
199 do {
200 for (i = uSEC; i > 0; --i)
201 barrier();
202 } while (!(scc.cha_a_ctrl & 0x04)); /* wait for tx buf empty */
203 for (i = uSEC; i > 0; --i)
204 barrier();
205 scc.cha_a_data = c;
206}
207
208static void mac_sccb_console_write(struct console *co, const char *str,
209 unsigned int count)
210{
211 while (count--) {
212 if (*str == '\n')
213 mac_sccb_out('\r');
214 mac_sccb_out(*str++);
215 }
216}
217
218static void mac_scca_console_write(struct console *co, const char *str,
219 unsigned int count)
220{
221 while (count--) {
222 if (*str == '\n')
223 mac_scca_out('\r');
224 mac_scca_out(*str++);
225 }
226}
227
228
229/* The following two functions do a quick'n'dirty initialization of the MFP or
230 * SCC serial ports. They're used by the debugging interface, kgdb, and the
231 * serial console code. */
232#define SCCB_WRITE(reg,val) \
233 do { \
234 int i; \
235 scc.cha_b_ctrl = (reg); \
236 for (i = uSEC; i > 0; --i) \
237 barrier(); \
238 scc.cha_b_ctrl = (val); \
239 for (i = uSEC; i > 0; --i) \
240 barrier(); \
241 } while(0)
242
243#define SCCA_WRITE(reg,val) \
244 do { \
245 int i; \
246 scc.cha_a_ctrl = (reg); \
247 for (i = uSEC; i > 0; --i) \
248 barrier(); \
249 scc.cha_a_ctrl = (val); \
250 for (i = uSEC; i > 0; --i) \
251 barrier(); \
252 } while(0)
253
254/* loops_per_jiffy isn't initialized yet, so we can't use udelay(). This does a
255 * delay of ~ 60us. */
256/* Mac: loops_per_jiffy min. 19000 ^= .5 us; MFPDELAY was 0.6 us*/
257#define LONG_DELAY() \
258 do { \
259 int i; \
260 for (i = 60*uSEC; i > 0; --i) \
261 barrier(); \
262 } while(0)
263
264static void __init mac_init_scc_port(int cflag, int port)
265{
266 /*
267 * baud rates: 1200, 1800, 2400, 4800, 9600, 19.2k, 38.4k, 57.6k, 115.2k
268 */
269
270 static int clksrc_table[9] =
271 /* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */
272 { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 };
273 static int clkmode_table[9] =
274 /* reg 4: 0x40 = x16, 0x80 = x32, 0xc0 = x64 */
275 { 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xc0, 0x80 };
276 static int div_table[9] =
277 /* reg12 (BRG low) */
278 { 94, 62, 46, 22, 10, 4, 1, 0, 0 };
279
280 int baud = cflag & CBAUD;
281 int clksrc, clkmode, div, reg3, reg5;
282
283 if (cflag & CBAUDEX)
284 baud += B38400;
285 if (baud < B1200 || baud > B38400+2)
286 baud = B9600; /* use default 9600bps for non-implemented rates */
287 baud -= B1200; /* tables starts at 1200bps */
288
289 clksrc = clksrc_table[baud];
290 clkmode = clkmode_table[baud];
291 div = div_table[baud];
292
293 reg3 = (((cflag & CSIZE) == CS8) ? 0xc0 : 0x40);
294 reg5 = (((cflag & CSIZE) == CS8) ? 0x60 : 0x20) | 0x82 /* assert DTR/RTS */;
295
296 if (port == 1) {
297 (void)scc.cha_b_ctrl; /* reset reg pointer */
298 SCCB_WRITE(9, 0xc0); /* reset */
299 LONG_DELAY(); /* extra delay after WR9 access */
300 SCCB_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 |
301 0x04 /* 1 stopbit */ |
302 clkmode);
303 SCCB_WRITE(3, reg3);
304 SCCB_WRITE(5, reg5);
305 SCCB_WRITE(9, 0); /* no interrupts */
306 LONG_DELAY(); /* extra delay after WR9 access */
307 SCCB_WRITE(10, 0); /* NRZ mode */
308 SCCB_WRITE(11, clksrc); /* main clock source */
309 SCCB_WRITE(12, div); /* BRG value */
310 SCCB_WRITE(13, 0); /* BRG high byte */
311 SCCB_WRITE(14, 1);
312 SCCB_WRITE(3, reg3 | 1);
313 SCCB_WRITE(5, reg5 | 8);
314 } else if (port == 0) {
315 (void)scc.cha_a_ctrl; /* reset reg pointer */
316 SCCA_WRITE(9, 0xc0); /* reset */
317 LONG_DELAY(); /* extra delay after WR9 access */
318 SCCA_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 |
319 0x04 /* 1 stopbit */ |
320 clkmode);
321 SCCA_WRITE(3, reg3);
322 SCCA_WRITE(5, reg5);
323 SCCA_WRITE(9, 0); /* no interrupts */
324 LONG_DELAY(); /* extra delay after WR9 access */
325 SCCA_WRITE(10, 0); /* NRZ mode */
326 SCCA_WRITE(11, clksrc); /* main clock source */
327 SCCA_WRITE(12, div); /* BRG value */
328 SCCA_WRITE(13, 0); /* BRG high byte */
329 SCCA_WRITE(14, 1);
330 SCCA_WRITE(3, reg3 | 1);
331 SCCA_WRITE(5, reg5 | 8);
332 }
333}
334#endif /* DEBUG_SERIAL */
335
336static int __init mac_debug_setup(char *arg)
337{
338 if (!MACH_IS_MAC)
339 return 0;
340
341#ifdef DEBUG_SERIAL
342 if (!strcmp(arg, "ser") || !strcmp(arg, "ser1")) {
343 /* Mac modem port */
344 mac_init_scc_port(B9600|CS8, 0);
345 mac_console_driver.write = mac_scca_console_write;
346 scc_port = 0;
347 } else if (!strcmp(arg, "ser2")) {
348 /* Mac printer port */
349 mac_init_scc_port(B9600|CS8, 1);
350 mac_console_driver.write = mac_sccb_console_write;
351 scc_port = 1;
352 }
353#endif
354#ifdef DEBUG_HEADS
355 if (!strcmp(arg, "scn") || !strcmp(arg, "con")) {
356 /* display, using head.S console routines */
357 mac_console_driver.write = mac_debug_console_write;
358 }
359#endif
360 if (mac_console_driver.write)
361 register_console(&mac_console_driver);
362 return 0;
363}
364
365early_param("debug", mac_debug_setup);
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index 23711074e0e2..900d899f3323 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -34,9 +34,7 @@
34 * 34 *
35 * 3 - unused (?) 35 * 3 - unused (?)
36 * 36 *
37 * 4 - SCC (slot number determined by reading RR3 on the SSC itself) 37 * 4 - SCC
38 * - slot 1: SCC channel A
39 * - slot 2: SCC channel B
40 * 38 *
41 * 5 - unused (?) 39 * 5 - unused (?)
42 * [serial errors or special conditions seem to raise level 6 40 * [serial errors or special conditions seem to raise level 6
@@ -55,8 +53,6 @@
55 * - slot 5: Slot $E 53 * - slot 5: Slot $E
56 * 54 *
57 * 4 - SCC IOP 55 * 4 - SCC IOP
58 * - slot 1: SCC channel A
59 * - slot 2: SCC channel B
60 * 56 *
61 * 5 - ISM IOP (ADB?) 57 * 5 - ISM IOP (ADB?)
62 * 58 *
@@ -136,13 +132,8 @@
136#include <asm/irq_regs.h> 132#include <asm/irq_regs.h>
137#include <asm/mac_oss.h> 133#include <asm/mac_oss.h>
138 134
139#define DEBUG_SPURIOUS
140#define SHUTUP_SONIC 135#define SHUTUP_SONIC
141 136
142/* SCC interrupt mask */
143
144static int scc_mask;
145
146/* 137/*
147 * VIA/RBV hooks 138 * VIA/RBV hooks
148 */ 139 */
@@ -191,13 +182,6 @@ extern void baboon_irq_disable(int);
191extern void baboon_irq_clear(int); 182extern void baboon_irq_clear(int);
192 183
193/* 184/*
194 * SCC interrupt routines
195 */
196
197static void scc_irq_enable(unsigned int);
198static void scc_irq_disable(unsigned int);
199
200/*
201 * console_loglevel determines NMI handler function 185 * console_loglevel determines NMI handler function
202 */ 186 */
203 187
@@ -221,8 +205,6 @@ void __init mac_init_IRQ(void)
221#ifdef DEBUG_MACINTS 205#ifdef DEBUG_MACINTS
222 printk("mac_init_IRQ(): Setting things up...\n"); 206 printk("mac_init_IRQ(): Setting things up...\n");
223#endif 207#endif
224 scc_mask = 0;
225
226 m68k_setup_irq_controller(&mac_irq_controller, IRQ_USER, 208 m68k_setup_irq_controller(&mac_irq_controller, IRQ_USER,
227 NUM_MAC_SOURCES - IRQ_USER); 209 NUM_MAC_SOURCES - IRQ_USER);
228 /* Make sure the SONIC interrupt is cleared or things get ugly */ 210 /* Make sure the SONIC interrupt is cleared or things get ugly */
@@ -283,15 +265,16 @@ void mac_enable_irq(unsigned int irq)
283 via_irq_enable(irq); 265 via_irq_enable(irq);
284 break; 266 break;
285 case 3: 267 case 3:
286 case 4:
287 case 5: 268 case 5:
288 case 6: 269 case 6:
289 if (psc_present) 270 if (psc_present)
290 psc_irq_enable(irq); 271 psc_irq_enable(irq);
291 else if (oss_present) 272 else if (oss_present)
292 oss_irq_enable(irq); 273 oss_irq_enable(irq);
293 else if (irq_src == 4) 274 break;
294 scc_irq_enable(irq); 275 case 4:
276 if (psc_present)
277 psc_irq_enable(irq);
295 break; 278 break;
296 case 8: 279 case 8:
297 if (baboon_present) 280 if (baboon_present)
@@ -316,15 +299,16 @@ void mac_disable_irq(unsigned int irq)
316 via_irq_disable(irq); 299 via_irq_disable(irq);
317 break; 300 break;
318 case 3: 301 case 3:
319 case 4:
320 case 5: 302 case 5:
321 case 6: 303 case 6:
322 if (psc_present) 304 if (psc_present)
323 psc_irq_disable(irq); 305 psc_irq_disable(irq);
324 else if (oss_present) 306 else if (oss_present)
325 oss_irq_disable(irq); 307 oss_irq_disable(irq);
326 else if (irq_src == 4) 308 break;
327 scc_irq_disable(irq); 309 case 4:
310 if (psc_present)
311 psc_irq_disable(irq);
328 break; 312 break;
329 case 8: 313 case 8:
330 if (baboon_present) 314 if (baboon_present)
@@ -347,7 +331,6 @@ void mac_clear_irq(unsigned int irq)
347 via_irq_clear(irq); 331 via_irq_clear(irq);
348 break; 332 break;
349 case 3: 333 case 3:
350 case 4:
351 case 5: 334 case 5:
352 case 6: 335 case 6:
353 if (psc_present) 336 if (psc_present)
@@ -355,6 +338,10 @@ void mac_clear_irq(unsigned int irq)
355 else if (oss_present) 338 else if (oss_present)
356 oss_irq_clear(irq); 339 oss_irq_clear(irq);
357 break; 340 break;
341 case 4:
342 if (psc_present)
343 psc_irq_clear(irq);
344 break;
358 case 8: 345 case 8:
359 if (baboon_present) 346 if (baboon_present)
360 baboon_irq_clear(irq); 347 baboon_irq_clear(irq);
@@ -374,13 +361,17 @@ int mac_irq_pending(unsigned int irq)
374 else 361 else
375 return via_irq_pending(irq); 362 return via_irq_pending(irq);
376 case 3: 363 case 3:
377 case 4:
378 case 5: 364 case 5:
379 case 6: 365 case 6:
380 if (psc_present) 366 if (psc_present)
381 return psc_irq_pending(irq); 367 return psc_irq_pending(irq);
382 else if (oss_present) 368 else if (oss_present)
383 return oss_irq_pending(irq); 369 return oss_irq_pending(irq);
370 break;
371 case 4:
372 if (psc_present)
373 psc_irq_pending(irq);
374 break;
384 } 375 }
385 return 0; 376 return 0;
386} 377}
@@ -448,59 +439,3 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id)
448 in_nmi--; 439 in_nmi--;
449 return IRQ_HANDLED; 440 return IRQ_HANDLED;
450} 441}
451
452/*
453 * Simple routines for masking and unmasking
454 * SCC interrupts in cases where this can't be
455 * done in hardware (only the PSC can do that.)
456 */
457
458static void scc_irq_enable(unsigned int irq)
459{
460 int irq_idx = IRQ_IDX(irq);
461
462 scc_mask |= (1 << irq_idx);
463}
464
465static void scc_irq_disable(unsigned int irq)
466{
467 int irq_idx = IRQ_IDX(irq);
468
469 scc_mask &= ~(1 << irq_idx);
470}
471
472/*
473 * SCC master interrupt handler. We have to do a bit of magic here
474 * to figure out what channel gave us the interrupt; putting this
475 * here is cleaner than hacking it into drivers/char/macserial.c.
476 */
477
478void mac_scc_dispatch(int irq, void *dev_id)
479{
480 volatile unsigned char *scc = (unsigned char *) mac_bi_data.sccbase + 2;
481 unsigned char reg;
482 unsigned long flags;
483
484 /* Read RR3 from the chip. Always do this on channel A */
485 /* This must be an atomic operation so disable irqs. */
486
487 local_irq_save(flags);
488 *scc = 3;
489 reg = *scc;
490 local_irq_restore(flags);
491
492 /* Now dispatch. Bits 0-2 are for channel B and */
493 /* bits 3-5 are for channel A. We can safely */
494 /* ignore the remaining bits here. */
495 /* */
496 /* Note that we're ignoring scc_mask for now. */
497 /* If we actually mask the ints then we tend to */
498 /* get hammered by very persistent SCC irqs, */
499 /* and since they're autovector interrupts they */
500 /* pretty much kill the system. */
501
502 if (reg & 0x38)
503 m68k_handle_int(IRQ_SCCA);
504 if (reg & 0x07)
505 m68k_handle_int(IRQ_SCCB);
506}
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index f3d23d6ebcf8..a9c0f5ab4cc0 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -33,7 +33,6 @@ static irqreturn_t oss_irq(int, void *);
33static irqreturn_t oss_nubus_irq(int, void *); 33static irqreturn_t oss_nubus_irq(int, void *);
34 34
35extern irqreturn_t via1_irq(int, void *); 35extern irqreturn_t via1_irq(int, void *);
36extern irqreturn_t mac_scc_dispatch(int, void *);
37 36
38/* 37/*
39 * Initialize the OSS 38 * Initialize the OSS
@@ -69,9 +68,6 @@ void __init oss_register_interrupts(void)
69 if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK, 68 if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
70 "scsi", (void *) oss)) 69 "scsi", (void *) oss))
71 pr_err("Couldn't register %s interrupt\n", "scsi"); 70 pr_err("Couldn't register %s interrupt\n", "scsi");
72 if (request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK,
73 "scc", mac_scc_dispatch))
74 pr_err("Couldn't register %s interrupt\n", "scc");
75 if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK, 71 if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
76 "nubus", (void *) oss)) 72 "nubus", (void *) oss))
77 pr_err("Couldn't register %s interrupt\n", "nubus"); 73 pr_err("Couldn't register %s interrupt\n", "nubus");
@@ -172,9 +168,7 @@ void oss_irq_enable(int irq) {
172 printk("oss_irq_enable(%d)\n", irq); 168 printk("oss_irq_enable(%d)\n", irq);
173#endif 169#endif
174 switch(irq) { 170 switch(irq) {
175 case IRQ_SCC: 171 case IRQ_MAC_SCC:
176 case IRQ_SCCA:
177 case IRQ_SCCB:
178 oss->irq_level[OSS_IOPSCC] = OSS_IRQLEV_IOPSCC; 172 oss->irq_level[OSS_IOPSCC] = OSS_IRQLEV_IOPSCC;
179 break; 173 break;
180 case IRQ_MAC_ADB: 174 case IRQ_MAC_ADB:
@@ -212,9 +206,7 @@ void oss_irq_disable(int irq) {
212 printk("oss_irq_disable(%d)\n", irq); 206 printk("oss_irq_disable(%d)\n", irq);
213#endif 207#endif
214 switch(irq) { 208 switch(irq) {
215 case IRQ_SCC: 209 case IRQ_MAC_SCC:
216 case IRQ_SCCA:
217 case IRQ_SCCB:
218 oss->irq_level[OSS_IOPSCC] = OSS_IRQLEV_DISABLED; 210 oss->irq_level[OSS_IOPSCC] = OSS_IRQLEV_DISABLED;
219 break; 211 break;
220 case IRQ_MAC_ADB: 212 case IRQ_MAC_ADB:
@@ -250,9 +242,7 @@ void oss_irq_disable(int irq) {
250void oss_irq_clear(int irq) { 242void oss_irq_clear(int irq) {
251 /* FIXME: how to do this on OSS? */ 243 /* FIXME: how to do this on OSS? */
252 switch(irq) { 244 switch(irq) {
253 case IRQ_SCC: 245 case IRQ_MAC_SCC:
254 case IRQ_SCCA:
255 case IRQ_SCCB:
256 oss->irq_pending &= ~OSS_IP_IOPSCC; 246 oss->irq_pending &= ~OSS_IP_IOPSCC;
257 break; 247 break;
258 case IRQ_MAC_ADB: 248 case IRQ_MAC_ADB:
@@ -280,9 +270,7 @@ void oss_irq_clear(int irq) {
280int oss_irq_pending(int irq) 270int oss_irq_pending(int irq)
281{ 271{
282 switch(irq) { 272 switch(irq) {
283 case IRQ_SCC: 273 case IRQ_MAC_SCC:
284 case IRQ_SCCA:
285 case IRQ_SCCB:
286 return oss->irq_pending & OSS_IP_IOPSCC; 274 return oss->irq_pending & OSS_IP_IOPSCC;
287 break; 275 break;
288 case IRQ_MAC_ADB: 276 case IRQ_MAC_ADB:
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 11bce3cb6482..e71166daec6a 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -84,8 +84,6 @@ void via_irq_enable(int irq);
84void via_irq_disable(int irq); 84void via_irq_disable(int irq);
85void via_irq_clear(int irq); 85void via_irq_clear(int irq);
86 86
87extern irqreturn_t mac_scc_dispatch(int, void *);
88
89/* 87/*
90 * Initialize the VIAs 88 * Initialize the VIAs
91 * 89 *
@@ -311,11 +309,6 @@ void __init via_register_interrupts(void)
311 if (request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, 309 if (request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
312 "via2", (void *) via2)) 310 "via2", (void *) via2))
313 pr_err("Couldn't register %s interrupt\n", "via2"); 311 pr_err("Couldn't register %s interrupt\n", "via2");
314 if (!psc_present) {
315 if (request_irq(IRQ_AUTO_4, mac_scc_dispatch, IRQ_FLG_LOCK,
316 "scc", mac_scc_dispatch))
317 pr_err("Couldn't register %s interrupt\n", "scc");
318 }
319 if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, 312 if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq,
320 IRQ_FLG_LOCK|IRQ_FLG_FAST, "nubus", (void *) via2)) 313 IRQ_FLG_LOCK|IRQ_FLG_FAST, "nubus", (void *) via2))
321 pr_err("Couldn't register %s interrupt\n", "nubus"); 314 pr_err("Couldn't register %s interrupt\n", "nubus");
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-13 15:21:25 -0500