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authorThomas Kunze <thommycheck@gmx.de>2008-04-29 17:44:54 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-05-17 22:53:54 +0100
commit2a52efb2cecf78201d61bd4930153bf52e57503b (patch)
tree5877cca7d52372a820ffc0b2e71bf8bdd45abcba
parent649de51b883746d76c5fa1614dd067054c9d702a (diff)
downloadlwn-2a52efb2cecf78201d61bd4930153bf52e57503b.tar.gz
lwn-2a52efb2cecf78201d61bd4930153bf52e57503b.zip
[ARM] 5026/1: locomo: add .settype for gpio and several small fixes
irqs.h: * rename IRQ_LOCOMO_SPI_OVRN to IRQ_LOCOMO_SPI_REND locomo.h: * add some definition for locomo spi controller * correct some errors locomo.c: * correct some errors * add set_type for locomo gpio irq chip Signed-off-by: Thomas Kunze <thommycheck@gmx.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/common/locomo.c66
-rw-r--r--include/asm-arm/arch-sa1100/irqs.h2
-rw-r--r--include/asm-arm/hardware/locomo.h19
3 files changed, 60 insertions, 27 deletions
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index ae21755872ed..d973c986f721 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -321,11 +321,42 @@ static void locomo_gpio_unmask_irq(unsigned int irq)
locomo_writel(r, mapbase + LOCOMO_GIE);
}
+static int GPIO_IRQ_rising_edge;
+static int GPIO_IRQ_falling_edge;
+
+static int locomo_gpio_type(unsigned int irq, unsigned int type)
+{
+ unsigned int mask;
+ void __iomem *mapbase = get_irq_chip_data(irq);
+
+ mask = 1 << (irq - LOCOMO_IRQ_GPIO_START);
+
+ if (type == IRQT_PROBE) {
+ if ((GPIO_IRQ_rising_edge | GPIO_IRQ_falling_edge) & mask)
+ return 0;
+ type = __IRQT_RISEDGE | __IRQT_FALEDGE;
+ }
+
+ if (type & __IRQT_RISEDGE)
+ GPIO_IRQ_rising_edge |= mask;
+ else
+ GPIO_IRQ_rising_edge &= ~mask;
+ if (type & __IRQT_FALEDGE)
+ GPIO_IRQ_falling_edge |= mask;
+ else
+ GPIO_IRQ_falling_edge &= ~mask;
+ locomo_writel(GPIO_IRQ_rising_edge, mapbase + LOCOMO_GRIE);
+ locomo_writel(GPIO_IRQ_falling_edge, mapbase + LOCOMO_GFIE);
+
+ return 0;
+}
+
static struct irq_chip locomo_gpio_chip = {
- .name = "LOCOMO-gpio",
- .ack = locomo_gpio_ack_irq,
- .mask = locomo_gpio_mask_irq,
- .unmask = locomo_gpio_unmask_irq,
+ .name = "LOCOMO-gpio",
+ .ack = locomo_gpio_ack_irq,
+ .mask = locomo_gpio_mask_irq,
+ .unmask = locomo_gpio_unmask_irq,
+ .set_type = locomo_gpio_type,
};
static void locomo_lt_handler(unsigned int irq, struct irq_desc *desc)
@@ -450,22 +481,18 @@ static void locomo_setup_irq(struct locomo *lchip)
set_irq_chip(IRQ_LOCOMO_KEY_BASE, &locomo_chip);
set_irq_chip_data(IRQ_LOCOMO_KEY_BASE, irqbase);
set_irq_chained_handler(IRQ_LOCOMO_KEY_BASE, locomo_key_handler);
- set_irq_flags(IRQ_LOCOMO_KEY_BASE, IRQF_VALID | IRQF_PROBE);
set_irq_chip(IRQ_LOCOMO_GPIO_BASE, &locomo_chip);
set_irq_chip_data(IRQ_LOCOMO_GPIO_BASE, irqbase);
set_irq_chained_handler(IRQ_LOCOMO_GPIO_BASE, locomo_gpio_handler);
- set_irq_flags(IRQ_LOCOMO_GPIO_BASE, IRQF_VALID | IRQF_PROBE);
set_irq_chip(IRQ_LOCOMO_LT_BASE, &locomo_chip);
set_irq_chip_data(IRQ_LOCOMO_LT_BASE, irqbase);
set_irq_chained_handler(IRQ_LOCOMO_LT_BASE, locomo_lt_handler);
- set_irq_flags(IRQ_LOCOMO_LT_BASE, IRQF_VALID | IRQF_PROBE);
set_irq_chip(IRQ_LOCOMO_SPI_BASE, &locomo_chip);
set_irq_chip_data(IRQ_LOCOMO_SPI_BASE, irqbase);
set_irq_chained_handler(IRQ_LOCOMO_SPI_BASE, locomo_spi_handler);
- set_irq_flags(IRQ_LOCOMO_SPI_BASE, IRQF_VALID | IRQF_PROBE);
/* install handlers for IRQ_LOCOMO_KEY_BASE generated interrupts */
set_irq_chip(LOCOMO_IRQ_KEY_START, &locomo_key_chip);
@@ -488,7 +515,7 @@ static void locomo_setup_irq(struct locomo *lchip)
set_irq_flags(LOCOMO_IRQ_LT_START, IRQF_VALID | IRQF_PROBE);
/* install handlers for IRQ_LOCOMO_SPI_BASE generated interrupts */
- for (irq = LOCOMO_IRQ_SPI_START; irq < LOCOMO_IRQ_SPI_START + 3; irq++) {
+ for (irq = LOCOMO_IRQ_SPI_START; irq < LOCOMO_IRQ_SPI_START + 4; irq++) {
set_irq_chip(irq, &locomo_spi_chip);
set_irq_chip_data(irq, irqbase);
set_irq_handler(irq, handle_edge_irq);
@@ -574,20 +601,20 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state)
save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */
locomo_writel(0x00, lchip->base + LOCOMO_GPO);
- save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPICT); /* SPI */
+ save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPICT); /* SPI */
locomo_writel(0x40, lchip->base + LOCOMO_SPICT);
save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */
locomo_writel(0x00, lchip->base + LOCOMO_GPE);
save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */
locomo_writel(0x00, lchip->base + LOCOMO_ASD);
- save->LCM_SPIMD = locomo_readl(lchip->base + LOCOMO_SPIMD); /* SPI */
- locomo_writel(0x3C14, lchip->base + LOCOMO_SPIMD);
+ save->LCM_SPIMD = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPIMD); /* SPI */
+ locomo_writel(0x3C14, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
locomo_writel(0x00, lchip->base + LOCOMO_PAIF);
locomo_writel(0x00, lchip->base + LOCOMO_DAC);
locomo_writel(0x00, lchip->base + LOCOMO_BACKLIGHT + LOCOMO_TC);
- if ( (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT0) & 0x88) && (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT1) & 0x88) )
+ if ((locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT0) & 0x88) && (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT1) & 0x88))
locomo_writel(0x00, lchip->base + LOCOMO_C32K); /* CLK32 off */
else
/* 18MHz already enabled, so no wait */
@@ -616,10 +643,10 @@ static int locomo_resume(struct platform_device *dev)
spin_lock_irqsave(&lchip->lock, flags);
locomo_writel(save->LCM_GPO, lchip->base + LOCOMO_GPO);
- locomo_writel(save->LCM_SPICT, lchip->base + LOCOMO_SPICT);
+ locomo_writel(save->LCM_SPICT, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
locomo_writel(save->LCM_GPE, lchip->base + LOCOMO_GPE);
locomo_writel(save->LCM_ASD, lchip->base + LOCOMO_ASD);
- locomo_writel(save->LCM_SPIMD, lchip->base + LOCOMO_SPIMD);
+ locomo_writel(save->LCM_SPIMD, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
locomo_writel(0x00, lchip->base + LOCOMO_C32K);
locomo_writel(0x90, lchip->base + LOCOMO_TADC);
@@ -688,9 +715,9 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
/* GPIO */
locomo_writel(0, lchip->base + LOCOMO_GPO);
- locomo_writel( (LOCOMO_GPIO(2) | LOCOMO_GPIO(3) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
+ locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
, lchip->base + LOCOMO_GPE);
- locomo_writel( (LOCOMO_GPIO(2) | LOCOMO_GPIO(3) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
+ locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
, lchip->base + LOCOMO_GPD);
locomo_writel(0, lchip->base + LOCOMO_GIE);
@@ -833,7 +860,10 @@ void locomo_gpio_set_dir(struct device *dev, unsigned int bits, unsigned int dir
spin_lock_irqsave(&lchip->lock, flags);
r = locomo_readl(lchip->base + LOCOMO_GPD);
- r &= ~bits;
+ if (dir)
+ r |= bits;
+ else
+ r &= ~bits;
locomo_writel(r, lchip->base + LOCOMO_GPD);
r = locomo_readl(lchip->base + LOCOMO_GPE);
diff --git a/include/asm-arm/arch-sa1100/irqs.h b/include/asm-arm/arch-sa1100/irqs.h
index d7940683efb1..7bf80484bb77 100644
--- a/include/asm-arm/arch-sa1100/irqs.h
+++ b/include/asm-arm/arch-sa1100/irqs.h
@@ -141,7 +141,7 @@
#define IRQ_LOCOMO_LT (IRQ_BOARD_END + 17)
#define IRQ_LOCOMO_SPI_RFR (IRQ_BOARD_END + 18)
#define IRQ_LOCOMO_SPI_RFW (IRQ_BOARD_END + 19)
-#define IRQ_LOCOMO_SPI_OVRN (IRQ_BOARD_END + 20)
+#define IRQ_LOCOMO_SPI_REND (IRQ_BOARD_END + 20)
#define IRQ_LOCOMO_SPI_TEND (IRQ_BOARD_END + 21)
/*
diff --git a/include/asm-arm/hardware/locomo.h b/include/asm-arm/hardware/locomo.h
index adab77780ed3..fb0645de6f31 100644
--- a/include/asm-arm/hardware/locomo.h
+++ b/include/asm-arm/hardware/locomo.h
@@ -58,6 +58,11 @@
#define LOCOMO_SPIMD 0x00 /* SPI mode setting */
#define LOCOMO_SPICT 0x04 /* SPI mode control */
#define LOCOMO_SPIST 0x08 /* SPI status */
+#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
+#define LOCOMO_SPI_REND (1 << 2) /* Receive end bit */
+#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
+#define LOCOMO_SPI_RFR (1) /* read buffer bit */
+
#define LOCOMO_SPIIS 0x10 /* SPI interrupt status */
#define LOCOMO_SPIWE 0x14 /* SPI interrupt status write enable */
#define LOCOMO_SPIIE 0x18 /* SPI interrupt enable */
@@ -66,16 +71,12 @@
#define LOCOMO_SPIRD 0x24 /* SPI receive data read */
#define LOCOMO_SPITS 0x28 /* SPI transfer data shift */
#define LOCOMO_SPIRS 0x2C /* SPI receive data shift */
-#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
-#define LOCOMO_SPI_OVRN (1 << 2) /* Over Run bit */
-#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
-#define LOCOMO_SPI_RFR (1) /* read buffer bit */
/* GPIO */
#define LOCOMO_GPD 0x90 /* GPIO direction */
#define LOCOMO_GPE 0x94 /* GPIO input enable */
#define LOCOMO_GPL 0x98 /* GPIO level */
-#define LOCOMO_GPO 0x9c /* GPIO out data setteing */
+#define LOCOMO_GPO 0x9c /* GPIO out data setting */
#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
@@ -96,6 +97,9 @@
#define LOCOMO_GPIO_DAC_SDATA LOCOMO_GPIO(10)
#define LOCOMO_GPIO_DAC_SCK LOCOMO_GPIO(11)
#define LOCOMO_GPIO_DAC_SLOAD LOCOMO_GPIO(12)
+#define LOCOMO_GPIO_CARD_DETECT LOCOMO_GPIO(13)
+#define LOCOMO_GPIO_WRITE_PROT LOCOMO_GPIO(14)
+#define LOCOMO_GPIO_CARD_POWER LOCOMO_GPIO(15)
/* Start the definitions of the devices. Each device has an initial
* base address and a series of offsets from that base address. */
@@ -122,7 +126,7 @@
/* Audio controller */
#define LOCOMO_AUDIO 0x54
#define LOCOMO_ACC 0x00 /* Audio clock */
-#define LOCOMO_PAIF 0x7C /* PCM audio interface */
+#define LOCOMO_PAIF 0xD0 /* PCM audio interface */
/* Audio clock */
#define LOCOMO_ACC_XON 0x80
#define LOCOMO_ACC_XEN 0x40
@@ -162,7 +166,7 @@ extern struct bus_type locomo_bus_type;
#define LOCOMO_DEVID_AUDIO 3
#define LOCOMO_DEVID_LED 4
#define LOCOMO_DEVID_UART 5
-#define LOCOMO_DEVID_SPI 6
+#define LOCOMO_DEVID_SPI 6
struct locomo_dev {
struct device dev;
@@ -204,7 +208,6 @@ int locomo_gpio_read_level(struct device *dev, unsigned int bits);
int locomo_gpio_read_output(struct device *dev, unsigned int bits);
void locomo_gpio_write(struct device *dev, unsigned int bits, unsigned int set);
-
/* M62332 control function */
void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel);