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[ARM] 3863/1: Add Locomo SPI Device

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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>
This commit is contained in:
Dirk Opfer
2006-09-25 22:41:47 +01:00
committed by Russell King
parent 8d48427ecb
commit a2025e7f73
2 changed files with 31 additions and 22 deletions
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29
arch/arm/common/locomo.c
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@@ -121,6 +121,13 @@ static struct locomo_dev_info locomo_devices[] = {
.offset = 0,
.length = 0,
},
{
.devid = LOCOMO_DEVID_SPI,
.irq = {},
.name = "locomo-spi",
.offset = LOCOMO_SPI,
.length = 0x30,
},
};
@@ -374,7 +381,7 @@ static void locomo_spi_handler(unsigned int irq, struct irqdesc *desc,
struct irqdesc *d;
void __iomem *mapbase = get_irq_chipdata(irq);
req = locomo_readl(mapbase + LOCOMO_SPIIR) & 0x000F;
req = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIR) & 0x000F;
if (req) {
irq = LOCOMO_IRQ_SPI_START;
d = irq_desc + irq;
@@ -391,35 +398,35 @@ static void locomo_spi_ack_irq(unsigned int irq)
{
void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_SPIWE);
r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIWE);
r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START));
locomo_writel(r, mapbase + LOCOMO_SPIWE);
locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIWE);
r = locomo_readl(mapbase + LOCOMO_SPIIS);
r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIS);
r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
locomo_writel(r, mapbase + LOCOMO_SPIIS);
locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIIS);
r = locomo_readl(mapbase + LOCOMO_SPIWE);
r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIWE);
r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
locomo_writel(r, mapbase + LOCOMO_SPIWE);
locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIWE);
}
static void locomo_spi_mask_irq(unsigned int irq)
{
void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_SPIIE);
r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIE);
r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
locomo_writel(r, mapbase + LOCOMO_SPIIE);
locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIIE);
}
static void locomo_spi_unmask_irq(unsigned int irq)
{
void __iomem *mapbase = get_irq_chipdata(irq);
unsigned int r;
r = locomo_readl(mapbase + LOCOMO_SPIIE);
r = locomo_readl(mapbase + LOCOMO_SPI + LOCOMO_SPIIE);
r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START));
locomo_writel(r, mapbase + LOCOMO_SPIIE);
locomo_writel(r, mapbase + LOCOMO_SPI + LOCOMO_SPIIE);
}
static struct irq_chip locomo_spi_chip = {