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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m32r/kernel/setup_usrv.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m32r/kernel/setup_usrv.c')
-rw-r--r--arch/m32r/kernel/setup_usrv.c256
1 files changed, 256 insertions, 0 deletions
diff --git a/arch/m32r/kernel/setup_usrv.c b/arch/m32r/kernel/setup_usrv.c
new file mode 100644
index 000000000000..fe417be5e3e9
--- /dev/null
+++ b/arch/m32r/kernel/setup_usrv.c
@@ -0,0 +1,256 @@
1/*
2 * linux/arch/m32r/kernel/setup_usrv.c
3 *
4 * Setup routines for MITSUBISHI uServer
5 *
6 * Copyright (c) 2001, 2002, 2003 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto
8 */
9
10#include <linux/config.h>
11#include <linux/irq.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14
15#include <asm/system.h>
16#include <asm/m32r.h>
17#include <asm/io.h>
18
19#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
20
21#if !defined(CONFIG_SMP)
22typedef struct {
23 unsigned long icucr; /* ICU Control Register */
24} icu_data_t;
25#endif /* CONFIG_SMP */
26
27icu_data_t icu_data[M32700UT_NUM_CPU_IRQ];
28
29static void disable_mappi_irq(unsigned int irq)
30{
31 unsigned long port, data;
32
33 port = irq2port(irq);
34 data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
35 outl(data, port);
36}
37
38static void enable_mappi_irq(unsigned int irq)
39{
40 unsigned long port, data;
41
42 port = irq2port(irq);
43 data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
44 outl(data, port);
45}
46
47static void mask_and_ack_mappi(unsigned int irq)
48{
49 disable_mappi_irq(irq);
50}
51
52static void end_mappi_irq(unsigned int irq)
53{
54 enable_mappi_irq(irq);
55}
56
57static unsigned int startup_mappi_irq(unsigned int irq)
58{
59 enable_mappi_irq(irq);
60 return 0;
61}
62
63static void shutdown_mappi_irq(unsigned int irq)
64{
65 unsigned long port;
66
67 port = irq2port(irq);
68 outl(M32R_ICUCR_ILEVEL7, port);
69}
70
71static struct hw_interrupt_type mappi_irq_type =
72{
73 "M32700-IRQ",
74 startup_mappi_irq,
75 shutdown_mappi_irq,
76 enable_mappi_irq,
77 disable_mappi_irq,
78 mask_and_ack_mappi,
79 end_mappi_irq
80};
81
82/*
83 * Interrupt Control Unit of PLD on M32700UT (Level 2)
84 */
85#define irq2pldirq(x) ((x) - M32700UT_PLD_IRQ_BASE)
86#define pldirq2port(x) (unsigned long)((int)PLD_ICUCR1 + \
87 (((x) - 1) * sizeof(unsigned short)))
88
89typedef struct {
90 unsigned short icucr; /* ICU Control Register */
91} pld_icu_data_t;
92
93static pld_icu_data_t pld_icu_data[M32700UT_NUM_PLD_IRQ];
94
95static void disable_m32700ut_pld_irq(unsigned int irq)
96{
97 unsigned long port, data;
98 unsigned int pldirq;
99
100 pldirq = irq2pldirq(irq);
101 port = pldirq2port(pldirq);
102 data = pld_icu_data[pldirq].icucr|PLD_ICUCR_ILEVEL7;
103 outw(data, port);
104}
105
106static void enable_m32700ut_pld_irq(unsigned int irq)
107{
108 unsigned long port, data;
109 unsigned int pldirq;
110
111 pldirq = irq2pldirq(irq);
112 port = pldirq2port(pldirq);
113 data = pld_icu_data[pldirq].icucr|PLD_ICUCR_IEN|PLD_ICUCR_ILEVEL6;
114 outw(data, port);
115}
116
117static void mask_and_ack_m32700ut_pld(unsigned int irq)
118{
119 disable_m32700ut_pld_irq(irq);
120}
121
122static void end_m32700ut_pld_irq(unsigned int irq)
123{
124 enable_m32700ut_pld_irq(irq);
125 end_mappi_irq(M32R_IRQ_INT1);
126}
127
128static unsigned int startup_m32700ut_pld_irq(unsigned int irq)
129{
130 enable_m32700ut_pld_irq(irq);
131 return 0;
132}
133
134static void shutdown_m32700ut_pld_irq(unsigned int irq)
135{
136 unsigned long port;
137 unsigned int pldirq;
138
139 pldirq = irq2pldirq(irq);
140 port = pldirq2port(pldirq);
141 outw(PLD_ICUCR_ILEVEL7, port);
142}
143
144static struct hw_interrupt_type m32700ut_pld_irq_type =
145{
146 "USRV-PLD-IRQ",
147 startup_m32700ut_pld_irq,
148 shutdown_m32700ut_pld_irq,
149 enable_m32700ut_pld_irq,
150 disable_m32700ut_pld_irq,
151 mask_and_ack_m32700ut_pld,
152 end_m32700ut_pld_irq
153};
154
155void __init init_IRQ(void)
156{
157 static int once = 0;
158 int i;
159
160 if (once)
161 return;
162 else
163 once++;
164
165 /* MFT2 : system timer */
166 irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED;
167 irq_desc[M32R_IRQ_MFT2].handler = &mappi_irq_type;
168 irq_desc[M32R_IRQ_MFT2].action = 0;
169 irq_desc[M32R_IRQ_MFT2].depth = 1;
170 icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
171 disable_mappi_irq(M32R_IRQ_MFT2);
172
173#if defined(CONFIG_SERIAL_M32R_SIO)
174 /* SIO0_R : uart receive data */
175 irq_desc[M32R_IRQ_SIO0_R].status = IRQ_DISABLED;
176 irq_desc[M32R_IRQ_SIO0_R].handler = &mappi_irq_type;
177 irq_desc[M32R_IRQ_SIO0_R].action = 0;
178 irq_desc[M32R_IRQ_SIO0_R].depth = 1;
179 icu_data[M32R_IRQ_SIO0_R].icucr = 0;
180 disable_mappi_irq(M32R_IRQ_SIO0_R);
181
182 /* SIO0_S : uart send data */
183 irq_desc[M32R_IRQ_SIO0_S].status = IRQ_DISABLED;
184 irq_desc[M32R_IRQ_SIO0_S].handler = &mappi_irq_type;
185 irq_desc[M32R_IRQ_SIO0_S].action = 0;
186 irq_desc[M32R_IRQ_SIO0_S].depth = 1;
187 icu_data[M32R_IRQ_SIO0_S].icucr = 0;
188 disable_mappi_irq(M32R_IRQ_SIO0_S);
189
190 /* SIO1_R : uart receive data */
191 irq_desc[M32R_IRQ_SIO1_R].status = IRQ_DISABLED;
192 irq_desc[M32R_IRQ_SIO1_R].handler = &mappi_irq_type;
193 irq_desc[M32R_IRQ_SIO1_R].action = 0;
194 irq_desc[M32R_IRQ_SIO1_R].depth = 1;
195 icu_data[M32R_IRQ_SIO1_R].icucr = 0;
196 disable_mappi_irq(M32R_IRQ_SIO1_R);
197
198 /* SIO1_S : uart send data */
199 irq_desc[M32R_IRQ_SIO1_S].status = IRQ_DISABLED;
200 irq_desc[M32R_IRQ_SIO1_S].handler = &mappi_irq_type;
201 irq_desc[M32R_IRQ_SIO1_S].action = 0;
202 irq_desc[M32R_IRQ_SIO1_S].depth = 1;
203 icu_data[M32R_IRQ_SIO1_S].icucr = 0;
204 disable_mappi_irq(M32R_IRQ_SIO1_S);
205#endif /* CONFIG_SERIAL_M32R_SIO */
206
207 /* INT#67-#71: CFC#0 IREQ on PLD */
208 for (i = 0 ; i < CONFIG_CFC_NUM ; i++ ) {
209 irq_desc[PLD_IRQ_CF0 + i].status = IRQ_DISABLED;
210 irq_desc[PLD_IRQ_CF0 + i].handler = &m32700ut_pld_irq_type;
211 irq_desc[PLD_IRQ_CF0 + i].action = 0;
212 irq_desc[PLD_IRQ_CF0 + i].depth = 1; /* disable nested irq */
213 pld_icu_data[irq2pldirq(PLD_IRQ_CF0 + i)].icucr
214 = PLD_ICUCR_ISMOD01; /* 'L' level sense */
215 disable_m32700ut_pld_irq(PLD_IRQ_CF0 + i);
216 }
217
218#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
219 /* INT#76: 16552D#0 IREQ on PLD */
220 irq_desc[PLD_IRQ_UART0].status = IRQ_DISABLED;
221 irq_desc[PLD_IRQ_UART0].handler = &m32700ut_pld_irq_type;
222 irq_desc[PLD_IRQ_UART0].action = 0;
223 irq_desc[PLD_IRQ_UART0].depth = 1; /* disable nested irq */
224 pld_icu_data[irq2pldirq(PLD_IRQ_UART0)].icucr
225 = PLD_ICUCR_ISMOD03; /* 'H' level sense */
226 disable_m32700ut_pld_irq(PLD_IRQ_UART0);
227
228 /* INT#77: 16552D#1 IREQ on PLD */
229 irq_desc[PLD_IRQ_UART1].status = IRQ_DISABLED;
230 irq_desc[PLD_IRQ_UART1].handler = &m32700ut_pld_irq_type;
231 irq_desc[PLD_IRQ_UART1].action = 0;
232 irq_desc[PLD_IRQ_UART1].depth = 1; /* disable nested irq */
233 pld_icu_data[irq2pldirq(PLD_IRQ_UART1)].icucr
234 = PLD_ICUCR_ISMOD03; /* 'H' level sense */
235 disable_m32700ut_pld_irq(PLD_IRQ_UART1);
236#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
237
238#if defined(CONFIG_IDC_AK4524) || defined(CONFIG_IDC_AK4524_MODULE)
239 /* INT#80: AK4524 IREQ on PLD */
240 irq_desc[PLD_IRQ_SNDINT].status = IRQ_DISABLED;
241 irq_desc[PLD_IRQ_SNDINT].handler = &m32700ut_pld_irq_type;
242 irq_desc[PLD_IRQ_SNDINT].action = 0;
243 irq_desc[PLD_IRQ_SNDINT].depth = 1; /* disable nested irq */
244 pld_icu_data[irq2pldirq(PLD_IRQ_SNDINT)].icucr
245 = PLD_ICUCR_ISMOD01; /* 'L' level sense */
246 disable_m32700ut_pld_irq(PLD_IRQ_SNDINT);
247#endif /* CONFIG_IDC_AK4524 || CONFIG_IDC_AK4524_MODULE */
248
249 /*
250 * INT1# is used for UART, MMC, CF Controller in FPGA.
251 * We enable it here.
252 */
253 icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD11;
254 enable_mappi_irq(M32R_IRQ_INT1);
255}
256