diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-19 14:37:22 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-19 14:37:22 -0400 |
| commit | 1d3c6ff44ad4b5f113602e153026a338f0f9b3ff (patch) | |
| tree | 1e1f2932634fc6d0e4acfe68496c1c727b83a13e /arch/arm/common/vic.c | |
| parent | 7c7cbaf5b82c418cd3b1dcf718f71d0e6057e639 (diff) | |
| parent | 717e7c2672e37253a4d3aa70e4716b5b0a658761 (diff) | |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (224 commits)
ARM: remove 'select GENERIC_TIME'
ARM: 6136/1: ARCH_REQUIRE_GPIOLIB selects GENERIC_GPIO
ARM: 6074/1: oprofile: convert from sysdev to platform device
ARM: 6073/1: oprofile: remove old files and update KConfig
ARM: 6072/1: oprofile: use perf-events framework as backend
ARM: 6071/1: perf-events: allow modules to query the number of hardware counters
ARM: 6070/1: perf-events: add support for xscale PMUs
ARM: 6069/1: perf-events: use numeric ID to identify PMU
ARM: 6064/1: pmu: register IRQs at runtime
ARM: Optionally allow ARMv6 to use 'normal, bufferable' memory for DMA
ARM: 6134/1: Handle instruction cache maintenance fault properly
ARM: nwfpe: allow debugging output to be configured at runtime
ARM: rename mach_cpu_disable() to platform_cpu_disable()
ARM: 6132/1: PL330: Add common core driver
ARM: 6094/1: Extend cache-l2x0 to support the 16-way PL310
ARM: Move memory mapping into mmu.c
ARM: Ensure meminfo is sorted prior to sanity_check_meminfo
ARM: Remove useless linux/bootmem.h includes
ARM: convert /proc/cpu/aligment to seq_file
arm: use asm-generic/scatterlist.h
...
Diffstat (limited to 'arch/arm/common/vic.c')
| -rw-r--r-- | arch/arm/common/vic.c | 107 |
1 files changed, 52 insertions, 55 deletions
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c index 1cf999ade4bc..ba65f6eedca6 100644 --- a/arch/arm/common/vic.c +++ b/arch/arm/common/vic.c | |||
| @@ -266,13 +266,53 @@ static int vic_set_wake(unsigned int irq, unsigned int on) | |||
| 266 | #endif /* CONFIG_PM */ | 266 | #endif /* CONFIG_PM */ |
| 267 | 267 | ||
| 268 | static struct irq_chip vic_chip = { | 268 | static struct irq_chip vic_chip = { |
| 269 | .name = "VIC", | 269 | .name = "VIC", |
| 270 | .ack = vic_ack_irq, | 270 | .ack = vic_ack_irq, |
| 271 | .mask = vic_mask_irq, | 271 | .mask = vic_mask_irq, |
| 272 | .unmask = vic_unmask_irq, | 272 | .unmask = vic_unmask_irq, |
| 273 | .set_wake = vic_set_wake, | 273 | .set_wake = vic_set_wake, |
| 274 | }; | 274 | }; |
| 275 | 275 | ||
| 276 | static void __init vic_disable(void __iomem *base) | ||
| 277 | { | ||
| 278 | writel(0, base + VIC_INT_SELECT); | ||
| 279 | writel(0, base + VIC_INT_ENABLE); | ||
| 280 | writel(~0, base + VIC_INT_ENABLE_CLEAR); | ||
| 281 | writel(0, base + VIC_IRQ_STATUS); | ||
| 282 | writel(0, base + VIC_ITCR); | ||
| 283 | writel(~0, base + VIC_INT_SOFT_CLEAR); | ||
| 284 | } | ||
| 285 | |||
| 286 | static void __init vic_clear_interrupts(void __iomem *base) | ||
| 287 | { | ||
| 288 | unsigned int i; | ||
| 289 | |||
| 290 | writel(0, base + VIC_PL190_VECT_ADDR); | ||
| 291 | for (i = 0; i < 19; i++) { | ||
| 292 | unsigned int value; | ||
| 293 | |||
| 294 | value = readl(base + VIC_PL190_VECT_ADDR); | ||
| 295 | writel(value, base + VIC_PL190_VECT_ADDR); | ||
| 296 | } | ||
| 297 | } | ||
| 298 | |||
| 299 | static void __init vic_set_irq_sources(void __iomem *base, | ||
| 300 | unsigned int irq_start, u32 vic_sources) | ||
| 301 | { | ||
| 302 | unsigned int i; | ||
| 303 | |||
| 304 | for (i = 0; i < 32; i++) { | ||
| 305 | if (vic_sources & (1 << i)) { | ||
| 306 | unsigned int irq = irq_start + i; | ||
| 307 | |||
| 308 | set_irq_chip(irq, &vic_chip); | ||
| 309 | set_irq_chip_data(irq, base); | ||
| 310 | set_irq_handler(irq, handle_level_irq); | ||
| 311 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | ||
| 312 | } | ||
| 313 | } | ||
| 314 | } | ||
| 315 | |||
| 276 | /* | 316 | /* |
| 277 | * The PL190 cell from ARM has been modified by ST to handle 64 interrupts. | 317 | * The PL190 cell from ARM has been modified by ST to handle 64 interrupts. |
| 278 | * The original cell has 32 interrupts, while the modified one has 64, | 318 | * The original cell has 32 interrupts, while the modified one has 64, |
| @@ -287,13 +327,7 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start, | |||
| 287 | int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0; | 327 | int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0; |
| 288 | 328 | ||
| 289 | /* Disable all interrupts initially. */ | 329 | /* Disable all interrupts initially. */ |
| 290 | 330 | vic_disable(base); | |
| 291 | writel(0, base + VIC_INT_SELECT); | ||
| 292 | writel(0, base + VIC_INT_ENABLE); | ||
| 293 | writel(~0, base + VIC_INT_ENABLE_CLEAR); | ||
| 294 | writel(0, base + VIC_IRQ_STATUS); | ||
| 295 | writel(0, base + VIC_ITCR); | ||
| 296 | writel(~0, base + VIC_INT_SOFT_CLEAR); | ||
| 297 | 331 | ||
| 298 | /* | 332 | /* |
| 299 | * Make sure we clear all existing interrupts. The vector registers | 333 | * Make sure we clear all existing interrupts. The vector registers |
| @@ -302,13 +336,8 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start, | |||
| 302 | * the second base address, which is 0x20 in the page | 336 | * the second base address, which is 0x20 in the page |
| 303 | */ | 337 | */ |
| 304 | if (vic_2nd_block) { | 338 | if (vic_2nd_block) { |
| 305 | writel(0, base + VIC_PL190_VECT_ADDR); | 339 | vic_clear_interrupts(base); |
| 306 | for (i = 0; i < 19; i++) { | ||
| 307 | unsigned int value; | ||
| 308 | 340 | ||
| 309 | value = readl(base + VIC_PL190_VECT_ADDR); | ||
| 310 | writel(value, base + VIC_PL190_VECT_ADDR); | ||
| 311 | } | ||
| 312 | /* ST has 16 vectors as well, but we don't enable them by now */ | 341 | /* ST has 16 vectors as well, but we don't enable them by now */ |
| 313 | for (i = 0; i < 16; i++) { | 342 | for (i = 0; i < 16; i++) { |
| 314 | void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4); | 343 | void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4); |
| @@ -318,16 +347,7 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start, | |||
| 318 | writel(32, base + VIC_PL190_DEF_VECT_ADDR); | 347 | writel(32, base + VIC_PL190_DEF_VECT_ADDR); |
| 319 | } | 348 | } |
| 320 | 349 | ||
| 321 | for (i = 0; i < 32; i++) { | 350 | vic_set_irq_sources(base, irq_start, vic_sources); |
| 322 | if (vic_sources & (1 << i)) { | ||
| 323 | unsigned int irq = irq_start + i; | ||
| 324 | |||
| 325 | set_irq_chip(irq, &vic_chip); | ||
| 326 | set_irq_chip_data(irq, base); | ||
| 327 | set_irq_handler(irq, handle_level_irq); | ||
| 328 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | ||
| 329 | } | ||
| 330 | } | ||
| 331 | } | 351 | } |
| 332 | 352 | ||
| 333 | /** | 353 | /** |
| @@ -365,37 +385,14 @@ void __init vic_init(void __iomem *base, unsigned int irq_start, | |||
| 365 | } | 385 | } |
| 366 | 386 | ||
| 367 | /* Disable all interrupts initially. */ | 387 | /* Disable all interrupts initially. */ |
| 388 | vic_disable(base); | ||
| 368 | 389 | ||
| 369 | writel(0, base + VIC_INT_SELECT); | 390 | /* Make sure we clear all existing interrupts */ |
| 370 | writel(0, base + VIC_INT_ENABLE); | 391 | vic_clear_interrupts(base); |
| 371 | writel(~0, base + VIC_INT_ENABLE_CLEAR); | ||
| 372 | writel(0, base + VIC_IRQ_STATUS); | ||
| 373 | writel(0, base + VIC_ITCR); | ||
| 374 | writel(~0, base + VIC_INT_SOFT_CLEAR); | ||
| 375 | |||
| 376 | /* | ||
| 377 | * Make sure we clear all existing interrupts | ||
| 378 | */ | ||
| 379 | writel(0, base + VIC_PL190_VECT_ADDR); | ||
| 380 | for (i = 0; i < 19; i++) { | ||
| 381 | unsigned int value; | ||
| 382 | |||
| 383 | value = readl(base + VIC_PL190_VECT_ADDR); | ||
| 384 | writel(value, base + VIC_PL190_VECT_ADDR); | ||
| 385 | } | ||
| 386 | 392 | ||
| 387 | vic_init2(base); | 393 | vic_init2(base); |
| 388 | 394 | ||
| 389 | for (i = 0; i < 32; i++) { | 395 | vic_set_irq_sources(base, irq_start, vic_sources); |
| 390 | if (vic_sources & (1 << i)) { | ||
| 391 | unsigned int irq = irq_start + i; | ||
| 392 | |||
| 393 | set_irq_chip(irq, &vic_chip); | ||
| 394 | set_irq_chip_data(irq, base); | ||
| 395 | set_irq_handler(irq, handle_level_irq); | ||
| 396 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | ||
| 397 | } | ||
| 398 | } | ||
| 399 | 396 | ||
| 400 | vic_pm_register(base, irq_start, resume_sources); | 397 | vic_pm_register(base, irq_start, resume_sources); |
| 401 | } | 398 | } |
