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authorAdrian Bunk <bunk@stusta.de>2007-07-31 03:38:19 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-31 18:39:39 -0400
commit99eb8a550dbccc0e1f6c7e866fe421810e0585f6 (patch)
tree130c6e3338a0655ba74355eba83afab9261e1ed0 /arch/arm26/machine
parent0d0ed42e5ca2e22465c591341839c18025748fe8 (diff)
Remove the arm26 port
The arm26 port has been in a state where it was far from even compiling for quite some time. Ian Molton agreed with the removal. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Ian Molton <spyro@f2s.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm26/machine')
-rw-r--r--arch/arm26/machine/Makefile8
-rw-r--r--arch/arm26/machine/dma.c214
-rw-r--r--arch/arm26/machine/irq.c164
-rw-r--r--arch/arm26/machine/latches.c72
4 files changed, 0 insertions, 458 deletions
diff --git a/arch/arm26/machine/Makefile b/arch/arm26/machine/Makefile
deleted file mode 100644
index 86ea97cc07fc..000000000000
--- a/arch/arm26/machine/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
1#
2# Makefile for the linux kernel.
3#
4
5# Object file lists.
6
7obj-y := dma.o irq.o latches.o
8
diff --git a/arch/arm26/machine/dma.c b/arch/arm26/machine/dma.c
deleted file mode 100644
index 4402a5a1b78f..000000000000
--- a/arch/arm26/machine/dma.c
+++ /dev/null
@@ -1,214 +0,0 @@
1/*
2 * linux/arch/arm26/kernel/dma.c
3 *
4 * Copyright (C) 1998-1999 Dave Gilbert / Russell King
5 * Copyright (C) 2003 Ian Molton
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * DMA functions specific to Archimedes and A5000 architecture
12 */
13#include <linux/sched.h>
14#include <linux/init.h>
15
16#include <asm/dma.h>
17#include <asm/fiq.h>
18#include <asm/irq.h>
19#include <asm/io.h>
20#include <asm/hardware.h>
21#include <asm/mach-types.h>
22
23#define DPRINTK(x...) printk(KERN_DEBUG x)
24
25#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE)
26
27extern unsigned char fdc1772_dma_read, fdc1772_dma_read_end;
28extern unsigned char fdc1772_dma_write, fdc1772_dma_write_end;
29extern void fdc1772_setupdma(unsigned int count,unsigned int addr);
30
31static void arc_floppy_data_enable_dma(dmach_t channel, dma_t *dma)
32{
33 DPRINTK("arc_floppy_data_enable_dma\n");
34
35 if (dma->using_sg)
36 BUG();
37
38 switch (dma->dma_mode) {
39 case DMA_MODE_READ: { /* read */
40 unsigned long flags;
41 DPRINTK("enable_dma fdc1772 data read\n");
42 local_save_flags_cli(flags);
43 clf();
44
45 memcpy ((void *)0x1c, (void *)&fdc1772_dma_read,
46 &fdc1772_dma_read_end - &fdc1772_dma_read);
47 fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */
48 enable_fiq(FIQ_FLOPPYDATA);
49 local_irq_restore(flags);
50 }
51 break;
52
53 case DMA_MODE_WRITE: { /* write */
54 unsigned long flags;
55 DPRINTK("enable_dma fdc1772 data write\n");
56 local_save_flags_cli(flags);
57 clf();
58 memcpy ((void *)0x1c, (void *)&fdc1772_dma_write,
59 &fdc1772_dma_write_end - &fdc1772_dma_write);
60 fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */
61 enable_fiq(FIQ_FLOPPYDATA);
62
63 local_irq_restore(flags);
64 }
65 break;
66 default:
67 printk ("enable_dma: dma%d not initialised\n", channel);
68 }
69}
70
71static int arc_floppy_data_get_dma_residue(dmach_t channel, dma_t *dma)
72{
73 extern unsigned int fdc1772_bytestogo;
74
75 /* 10/1/1999 DAG - I presume its the number of bytes left? */
76 return fdc1772_bytestogo;
77}
78
79static void arc_floppy_cmdend_enable_dma(dmach_t channel, dma_t *dma)
80{
81 /* Need to build a branch at the FIQ address */
82 extern void fdc1772_comendhandler(void);
83 unsigned long flags;
84
85 DPRINTK("arc_floppy_cmdend_enable_dma\n");
86 /*printk("enable_dma fdc1772 command end FIQ\n");*/
87 save_flags(flags);
88 clf();
89
90 /* B fdc1772_comendhandler */
91 *((unsigned int *)0x1c)=0xea000000 |
92 (((unsigned int)fdc1772_comendhandler-(0x1c+8))/4);
93
94 local_irq_restore(flags);
95}
96
97static int arc_floppy_cmdend_get_dma_residue(dmach_t channel, dma_t *dma)
98{
99 /* 10/1/1999 DAG - Presume whether there is an outstanding command? */
100 extern unsigned int fdc1772_fdc_int_done;
101
102 /* Explicit! If the int done is 0 then 1 int to go */
103 return (fdc1772_fdc_int_done==0)?1:0;
104}
105
106static void arc_disable_dma(dmach_t channel, dma_t *dma)
107{
108 disable_fiq(dma->dma_irq);
109}
110
111static struct dma_ops arc_floppy_data_dma_ops = {
112 .type = "FIQDMA",
113 .enable = arc_floppy_data_enable_dma,
114 .disable = arc_disable_dma,
115 .residue = arc_floppy_data_get_dma_residue,
116};
117
118static struct dma_ops arc_floppy_cmdend_dma_ops = {
119 .type = "FIQCMD",
120 .enable = arc_floppy_cmdend_enable_dma,
121 .disable = arc_disable_dma,
122 .residue = arc_floppy_cmdend_get_dma_residue,
123};
124#endif
125
126#ifdef CONFIG_ARCH_A5K
127static struct fiq_handler fh = {
128 .name = "floppydata"
129};
130
131static int a5k_floppy_get_dma_residue(dmach_t channel, dma_t *dma)
132{
133 struct pt_regs regs;
134 get_fiq_regs(&regs);
135 return regs.ARM_r9;
136}
137
138static void a5k_floppy_enable_dma(dmach_t channel, dma_t *dma)
139{
140 struct pt_regs regs;
141 void *fiqhandler_start;
142 unsigned int fiqhandler_length;
143 extern void floppy_fiqsetup(unsigned long len, unsigned long addr,
144 unsigned long port);
145
146 if (dma->using_sg)
147 BUG();
148
149 if (dma->dma_mode == DMA_MODE_READ) {
150 extern unsigned char floppy_fiqin_start, floppy_fiqin_end;
151 fiqhandler_start = &floppy_fiqin_start;
152 fiqhandler_length = &floppy_fiqin_end - &floppy_fiqin_start;
153 } else {
154 extern unsigned char floppy_fiqout_start, floppy_fiqout_end;
155 fiqhandler_start = &floppy_fiqout_start;
156 fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start;
157 }
158 if (claim_fiq(&fh)) {
159 printk("floppydma: couldn't claim FIQ.\n");
160 return;
161 }
162 memcpy((void *)0x1c, fiqhandler_start, fiqhandler_length);
163 regs.ARM_r9 = dma->buf.length;
164 regs.ARM_r10 = (unsigned long)dma->buf.__address;
165 regs.ARM_fp = FLOPPYDMA_BASE;
166 set_fiq_regs(&regs);
167 enable_fiq(dma->dma_irq);
168}
169
170static void a5k_floppy_disable_dma(dmach_t channel, dma_t *dma)
171{
172 disable_fiq(dma->dma_irq);
173 release_fiq(&fh);
174}
175
176static struct dma_ops a5k_floppy_dma_ops = {
177 .type = "FIQDMA",
178 .enable = a5k_floppy_enable_dma,
179 .disable = a5k_floppy_disable_dma,
180 .residue = a5k_floppy_get_dma_residue,
181};
182#endif
183
184/*
185 * This is virtual DMA - we don't need anything here
186 */
187static void sound_enable_disable_dma(dmach_t channel, dma_t *dma)
188{
189}
190
191static struct dma_ops sound_dma_ops = {
192 .type = "VIRTUAL",
193 .enable = sound_enable_disable_dma,
194 .disable = sound_enable_disable_dma,
195};
196
197void __init arch_dma_init(dma_t *dma)
198{
199#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE)
200 if (machine_is_archimedes()) {
201 dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA;
202 dma[DMA_VIRTUAL_FLOPPY0].d_ops = &arc_floppy_data_dma_ops;
203 dma[DMA_VIRTUAL_FLOPPY1].dma_irq = 1;
204 dma[DMA_VIRTUAL_FLOPPY1].d_ops = &arc_floppy_cmdend_dma_ops;
205 }
206#endif
207#ifdef CONFIG_ARCH_A5K
208 if (machine_is_a5k()) {
209 dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA;
210 dma[DMA_VIRTUAL_FLOPPY0].d_ops = &a5k_floppy_dma_ops;
211 }
212#endif
213 dma[DMA_VIRTUAL_SOUND].d_ops = &sound_dma_ops;
214}
diff --git a/arch/arm26/machine/irq.c b/arch/arm26/machine/irq.c
deleted file mode 100644
index a60d543edecc..000000000000
--- a/arch/arm26/machine/irq.c
+++ /dev/null
@@ -1,164 +0,0 @@
1/*
2 * linux/arch/arm26/mach-arc/irq.c
3 *
4 * Copyright (C) 1996 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Changelog:
11 * 24-09-1996 RMK Created
12 * 10-10-1996 RMK Brought up to date with arch-sa110eval
13 * 22-10-1996 RMK Changed interrupt numbers & uses new inb/outb macros
14 * 11-01-1998 RMK Added mask_and_ack_irq
15 * 22-08-1998 RMK Restructured IRQ routines
16 * 08-09-2002 IM Brought up to date for 2.5
17 * 01-06-2003 JMA Removed arc_fiq_chip
18 */
19#include <linux/init.h>
20
21#include <asm/irq.h>
22#include <asm/irqchip.h>
23#include <asm/ioc.h>
24#include <asm/io.h>
25#include <asm/system.h>
26
27extern void init_FIQ(void);
28
29#define a_clf() clf()
30#define a_stf() stf()
31
32static void arc_ack_irq_a(unsigned int irq)
33{
34 unsigned int val, mask;
35
36 mask = 1 << irq;
37 a_clf();
38 val = ioc_readb(IOC_IRQMASKA);
39 ioc_writeb(val & ~mask, IOC_IRQMASKA);
40 ioc_writeb(mask, IOC_IRQCLRA);
41 a_stf();
42}
43
44static void arc_mask_irq_a(unsigned int irq)
45{
46 unsigned int val, mask;
47
48 mask = 1 << irq;
49 a_clf();
50 val = ioc_readb(IOC_IRQMASKA);
51 ioc_writeb(val & ~mask, IOC_IRQMASKA);
52 a_stf();
53}
54
55static void arc_unmask_irq_a(unsigned int irq)
56{
57 unsigned int val, mask;
58
59 mask = 1 << irq;
60 a_clf();
61 val = ioc_readb(IOC_IRQMASKA);
62 ioc_writeb(val | mask, IOC_IRQMASKA);
63 a_stf();
64}
65
66static struct irqchip arc_a_chip = {
67 .ack = arc_ack_irq_a,
68 .mask = arc_mask_irq_a,
69 .unmask = arc_unmask_irq_a,
70};
71
72static void arc_mask_irq_b(unsigned int irq)
73{
74 unsigned int val, mask;
75 mask = 1 << (irq & 7);
76 val = ioc_readb(IOC_IRQMASKB);
77 ioc_writeb(val & ~mask, IOC_IRQMASKB);
78}
79
80static void arc_unmask_irq_b(unsigned int irq)
81{
82 unsigned int val, mask;
83
84 mask = 1 << (irq & 7);
85 val = ioc_readb(IOC_IRQMASKB);
86 ioc_writeb(val | mask, IOC_IRQMASKB);
87}
88
89static struct irqchip arc_b_chip = {
90 .ack = arc_mask_irq_b,
91 .mask = arc_mask_irq_b,
92 .unmask = arc_unmask_irq_b,
93};
94
95/* FIXME - JMA none of these functions are used in arm26 currently
96static void arc_mask_irq_fiq(unsigned int irq)
97{
98 unsigned int val, mask;
99
100 mask = 1 << (irq & 7);
101 val = ioc_readb(IOC_FIQMASK);
102 ioc_writeb(val & ~mask, IOC_FIQMASK);
103}
104
105static void arc_unmask_irq_fiq(unsigned int irq)
106{
107 unsigned int val, mask;
108
109 mask = 1 << (irq & 7);
110 val = ioc_readb(IOC_FIQMASK);
111 ioc_writeb(val | mask, IOC_FIQMASK);
112}
113
114static struct irqchip arc_fiq_chip = {
115 .ack = arc_mask_irq_fiq,
116 .mask = arc_mask_irq_fiq,
117 .unmask = arc_unmask_irq_fiq,
118};
119*/
120
121void __init arc_init_irq(void)
122{
123 unsigned int irq, flags;
124
125 /* Disable all IOC interrupt sources */
126 ioc_writeb(0, IOC_IRQMASKA);
127 ioc_writeb(0, IOC_IRQMASKB);
128 ioc_writeb(0, IOC_FIQMASK);
129
130 for (irq = 0; irq < NR_IRQS; irq++) {
131 flags = IRQF_VALID;
132
133 if (irq <= 6 || (irq >= 9 && irq <= 15))
134 flags |= IRQF_PROBE;
135
136 if (irq == IRQ_KEYBOARDTX)
137 flags |= IRQF_NOAUTOEN;
138
139 switch (irq) {
140 case 0 ... 7:
141 set_irq_chip(irq, &arc_a_chip);
142 set_irq_handler(irq, do_level_IRQ);
143 set_irq_flags(irq, flags);
144 break;
145
146 case 8 ... 15:
147 set_irq_chip(irq, &arc_b_chip);
148 set_irq_handler(irq, do_level_IRQ);
149 set_irq_flags(irq, flags);
150
151/* case 64 ... 72:
152 set_irq_chip(irq, &arc_fiq_chip);
153 set_irq_flags(irq, flags);
154 break;
155*/
156
157 }
158 }
159
160 irq_desc[IRQ_KEYBOARDTX].noautoenable = 1;
161
162 init_FIQ();
163}
164
diff --git a/arch/arm26/machine/latches.c b/arch/arm26/machine/latches.c
deleted file mode 100644
index 94f05d2a3b2b..000000000000
--- a/arch/arm26/machine/latches.c
+++ /dev/null
@@ -1,72 +0,0 @@
1/*
2 * linux/arch/arm26/kernel/latches.c
3 *
4 * Copyright (C) David Alan Gilbert 1995/1996,2000
5 * Copyright (C) Ian Molton 2003
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * Support for the latches on the old Archimedes which control the floppy,
12 * hard disc and printer
13 */
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/sched.h>
18
19#include <asm/io.h>
20#include <asm/hardware.h>
21#include <asm/mach-types.h>
22#include <asm/oldlatches.h>
23
24static unsigned char latch_a_copy;
25static unsigned char latch_b_copy;
26
27/* newval=(oldval & ~mask)|newdata */
28void oldlatch_aupdate(unsigned char mask,unsigned char newdata)
29{
30 unsigned long flags;
31
32 BUG_ON(!machine_is_archimedes());
33
34 local_irq_save(flags); //FIXME: was local_save_flags
35 latch_a_copy = (latch_a_copy & ~mask) | newdata;
36 __raw_writeb(latch_a_copy, LATCHA_BASE);
37 local_irq_restore(flags);
38
39 printk("Latch: A = 0x%02x\n", latch_a_copy);
40}
41
42
43/* newval=(oldval & ~mask)|newdata */
44void oldlatch_bupdate(unsigned char mask,unsigned char newdata)
45{
46 unsigned long flags;
47
48 BUG_ON(!machine_is_archimedes());
49
50
51 local_irq_save(flags);//FIXME: was local_save_flags
52 latch_b_copy = (latch_b_copy & ~mask) | newdata;
53 __raw_writeb(latch_b_copy, LATCHB_BASE);
54 local_irq_restore(flags);
55
56 printk("Latch: B = 0x%02x\n", latch_b_copy);
57}
58
59static int __init oldlatch_init(void)
60{
61 if (machine_is_archimedes()) {
62 oldlatch_aupdate(0xff, 0xff);
63 /* Thats no FDC reset...*/
64 oldlatch_bupdate(0xff, LATCHB_FDCRESET);
65 }
66 return 0;
67}
68
69arch_initcall(oldlatch_init);
70
71EXPORT_SYMBOL(oldlatch_aupdate);
72EXPORT_SYMBOL(oldlatch_bupdate);
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-06 14:35:02 -0500