diff options
Diffstat (limited to 'arch/sh/kernel/cpu/irq/intc-sh5.c')
-rw-r--r-- | arch/sh/kernel/cpu/irq/intc-sh5.c | 73 |
1 files changed, 38 insertions, 35 deletions
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c index d6e0e2bdaad5..de45c6a3e33b 100644 --- a/arch/sh/kernel/cpu/irq/intc-sh5.c +++ b/arch/sh/kernel/cpu/irq/intc-sh5.c | |||
@@ -184,9 +184,8 @@ int intc_irq_describe(char* p, int irq) | |||
184 | 184 | ||
185 | void __init plat_irq_setup(void) | 185 | void __init plat_irq_setup(void) |
186 | { | 186 | { |
187 | unsigned long long __dummy0, __dummy1=~0x00000000100000f0; | 187 | unsigned long long __dummy0, __dummy1=~0x00000000100000f0; |
188 | unsigned long reg; | 188 | unsigned long reg; |
189 | unsigned long data; | ||
190 | int i; | 189 | int i; |
191 | 190 | ||
192 | intc_virt = onchip_remap(INTC_BASE, 1024, "INTC"); | 191 | intc_virt = onchip_remap(INTC_BASE, 1024, "INTC"); |
@@ -196,11 +195,8 @@ void __init plat_irq_setup(void) | |||
196 | 195 | ||
197 | 196 | ||
198 | /* Set default: per-line enable/disable, priority driven ack/eoi */ | 197 | /* Set default: per-line enable/disable, priority driven ack/eoi */ |
199 | for (i = 0; i < NR_INTC_IRQS; i++) { | 198 | for (i = 0; i < NR_INTC_IRQS; i++) |
200 | if (platform_int_priority[i] != NO_PRIORITY) { | 199 | irq_desc[i].chip = &intc_irq_type; |
201 | irq_desc[i].chip = &intc_irq_type; | ||
202 | } | ||
203 | } | ||
204 | 200 | ||
205 | 201 | ||
206 | /* Disable all interrupts and set all priorities to 0 to avoid trouble */ | 202 | /* Disable all interrupts and set all priorities to 0 to avoid trouble */ |
@@ -211,35 +207,42 @@ void __init plat_irq_setup(void) | |||
211 | ctrl_outl( NO_PRIORITY, reg); | 207 | ctrl_outl( NO_PRIORITY, reg); |
212 | 208 | ||
213 | 209 | ||
214 | /* Set IRLM */ | 210 | #ifdef CONFIG_SH_CAYMAN |
215 | /* If all the priorities are set to 'no priority', then | 211 | { |
216 | * assume we are using encoded mode. | 212 | unsigned long data; |
217 | */ | 213 | |
218 | irlm = platform_int_priority[IRQ_IRL0] + platform_int_priority[IRQ_IRL1] + \ | 214 | /* Set IRLM */ |
219 | platform_int_priority[IRQ_IRL2] + platform_int_priority[IRQ_IRL3]; | 215 | /* If all the priorities are set to 'no priority', then |
220 | 216 | * assume we are using encoded mode. | |
221 | if (irlm == NO_PRIORITY) { | 217 | */ |
222 | /* IRLM = 0 */ | 218 | irlm = platform_int_priority[IRQ_IRL0] + |
223 | reg = INTC_ICR_CLEAR; | 219 | platform_int_priority[IRQ_IRL1] + |
224 | i = IRQ_INTA; | 220 | platform_int_priority[IRQ_IRL2] + |
225 | printk("Trying to use encoded IRL0-3. IRLs unsupported.\n"); | 221 | platform_int_priority[IRQ_IRL3]; |
226 | } else { | 222 | if (irlm == NO_PRIORITY) { |
227 | /* IRLM = 1 */ | 223 | /* IRLM = 0 */ |
228 | reg = INTC_ICR_SET; | 224 | reg = INTC_ICR_CLEAR; |
229 | i = IRQ_IRL0; | 225 | i = IRQ_INTA; |
230 | } | 226 | printk("Trying to use encoded IRL0-3. IRLs unsupported.\n"); |
231 | ctrl_outl(INTC_ICR_IRLM, reg); | 227 | } else { |
232 | 228 | /* IRLM = 1 */ | |
233 | /* Set interrupt priorities according to platform description */ | 229 | reg = INTC_ICR_SET; |
234 | for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) { | 230 | i = IRQ_IRL0; |
235 | data |= platform_int_priority[i] << ((i % INTC_INTPRI_PPREG) * 4); | ||
236 | if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) { | ||
237 | /* Upon the 7th, set Priority Register */ | ||
238 | ctrl_outl(data, reg); | ||
239 | data = 0; | ||
240 | reg += 8; | ||
241 | } | 231 | } |
242 | } | 232 | ctrl_outl(INTC_ICR_IRLM, reg); |
233 | |||
234 | /* Set interrupt priorities according to platform description */ | ||
235 | for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) { | ||
236 | data |= platform_int_priority[i] << | ||
237 | ((i % INTC_INTPRI_PPREG) * 4); | ||
238 | if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) { | ||
239 | /* Upon the 7th, set Priority Register */ | ||
240 | ctrl_outl(data, reg); | ||
241 | data = 0; | ||
242 | reg += 8; | ||
243 | } | ||
244 | } | ||
245 | #endif | ||
243 | 246 | ||
244 | /* | 247 | /* |
245 | * And now let interrupts come in. | 248 | * And now let interrupts come in. |