diff options
author | Dirk Opfer <dirk@opfer-online.de> | 2006-09-25 17:41:47 -0400 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-09-27 15:59:00 -0400 |
commit | a2025e7f73ae5eab0a25dad88c60aba67e3ae690 (patch) | |
tree | 95470b4d1fea82bf8ef9b92afaf4bf49b8c238f3 /arch/arm/common/locomo.c | |
parent | 8d48427ecb0639593ccf14e807479b7873254ccb (diff) |
[ARM] 3863/1: Add Locomo SPI Device
The Locomo chip has a SPI interface which is used for SD/MMC cards (only collie).
This patch adds the definition for the SPI device inside the Locomo chip.
Signed-off-by: Dirk Opfer <Dirk@Opfer-Online.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/common/locomo.c')
-rw-r--r-- | arch/arm/common/locomo.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c index c46dc65ec79a..181ef1ead5b8 100644 --- a/arch/arm/common/locomo.c +++ b/arch/arm/common/locomo.c | |||
@@ -121,6 +121,13 @@ static struct locomo_dev_info locomo_devices[] = { | |||
121 | .offset = 0, | 121 | .offset = 0, |
122 | .length = 0, | 122 | .length = 0, |
123 | }, | 123 | }, |
124 | { | ||
125 | .devid = LOCOMO_DEVID_SPI, | ||
126 | .irq = {}, | ||
127 | .name = "locomo-spi", | ||
128 | .offset = LOCOMO_SPI, | ||
129 | .length = 0x30, | ||
130 | }, | ||
124 | }; | 131 | }; |
125 | 132 | ||
126 | 133 | ||
@@ -374,7 +381,7 @@ static void locomo_spi_handler(unsigned int irq, struct irqdesc *desc, | |||
374 | struct irqdesc *d; | 381 | struct irqdesc *d; |
375 | void __iomem *mapbase = get_irq_chipdata(irq); | 382 | void __iomem *mapbase = get_irq_chipdata(irq); |
376 | 383 | ||
377 | req = locomo_readl(mapbase + LOCOMO_SPIIR) & 0x000F; | 384 | req = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIR) & 0x000F; |
378 | if (req) { | 385 | if (req) { |
379 | irq = LOCOMO_IRQ_SPI_START; | 386 | irq = LOCOMO_IRQ_SPI_START; |
380 | d = irq_desc + irq; | 387 | d = irq_desc + irq; |
@@ -391,35 +398,35 @@ static void locomo_spi_ack_irq(unsigned int irq) | |||
391 | { | 398 | { |
392 | void __iomem *mapbase = get_irq_chipdata(irq); | 399 | void __iomem *mapbase = get_irq_chipdata(irq); |
393 | unsigned int r; | 400 | unsigned int r; |
394 | r = locomo_readl(mapbase + LOCOMO_SPIWE); | 401 | r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIWE); |
395 | r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START)); | 402 | r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START)); |
396 | locomo_writel(r, mapbase + LOCOMO_SPIWE); | 403 | locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIWE); |
397 | 404 | ||
398 | r = locomo_readl(mapbase + LOCOMO_SPIIS); | 405 | r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIS); |
399 | r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START)); | 406 | r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START)); |
400 | locomo_writel(r, mapbase + LOCOMO_SPIIS); | 407 | locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIIS); |
401 | 408 | ||
402 | r = locomo_readl(mapbase + LOCOMO_SPIWE); | 409 | r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIWE); |
403 | r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START)); | 410 | r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START)); |
404 | locomo_writel(r, mapbase + LOCOMO_SPIWE); | 411 | locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIWE); |
405 | } | 412 | } |
406 | 413 | ||
407 | static void locomo_spi_mask_irq(unsigned int irq) | 414 | static void locomo_spi_mask_irq(unsigned int irq) |
408 | { | 415 | { |
409 | void __iomem *mapbase = get_irq_chipdata(irq); | 416 | void __iomem *mapbase = get_irq_chipdata(irq); |
410 | unsigned int r; | 417 | unsigned int r; |
411 | r = locomo_readl(mapbase + LOCOMO_SPIIE); | 418 | r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIE); |
412 | r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START)); | 419 | r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START)); |
413 | locomo_writel(r, mapbase + LOCOMO_SPIIE); | 420 | locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIIE); |
414 | } | 421 | } |
415 | 422 | ||
416 | static void locomo_spi_unmask_irq(unsigned int irq) | 423 | static void locomo_spi_unmask_irq(unsigned int irq) |
417 | { | 424 | { |
418 | void __iomem *mapbase = get_irq_chipdata(irq); | 425 | void __iomem *mapbase = get_irq_chipdata(irq); |
419 | unsigned int r; | 426 | unsigned int r; |
420 | r = locomo_readl(mapbase + LOCOMO_SPIIE); | 427 | r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIE); |
421 | r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START)); | 428 | r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START)); |
422 | locomo_writel(r, mapbase + LOCOMO_SPIIE); | 429 | locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIIE); |
423 | } | 430 | } |
424 | 431 | ||
425 | static struct irq_chip locomo_spi_chip = { | 432 | static struct irq_chip locomo_spi_chip = { |