forked from Minki/linux
ARM: S3C24XX: transform s3c2443 subirqs into new structure
Share the common irq code by simply defining a correct mapping declaration for the s3c2443. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Heiko Stuebner
Kukjin Kim
parent
b499b7a871
commit
f44ddba363
@ -732,230 +732,91 @@ void __init s3c2416_init_irq(void)
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#endif
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#ifdef CONFIG_CPU_S3C2443
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#define INTMSK(start, end) ((1 << ((end) + 1 - (start))) - 1)
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static inline void s3c2443_irq_demux(unsigned int irq, unsigned int len)
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{
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unsigned int subsrc, submsk;
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unsigned int end;
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/* read the current pending interrupts, and the mask
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* for what it is available */
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subsrc = __raw_readl(S3C2410_SUBSRCPND);
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submsk = __raw_readl(S3C2410_INTSUBMSK);
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subsrc &= ~submsk;
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subsrc >>= (irq - S3C2410_IRQSUB(0));
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subsrc &= (1 << len)-1;
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end = len + irq;
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for (; irq < end && subsrc; irq++) {
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if (subsrc & 1)
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generic_handle_irq(irq);
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subsrc >>= 1;
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}
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}
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/* WDT/AC97 sub interrupts */
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static void s3c2443_irq_demux_wdtac97(unsigned int irq, struct irq_desc *desc)
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{
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s3c2443_irq_demux(IRQ_S3C2443_WDT, 4);
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}
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#define INTMSK_WDTAC97 (1UL << (IRQ_WDT - IRQ_EINT0))
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#define SUBMSK_WDTAC97 INTMSK(IRQ_S3C2443_WDT, IRQ_S3C2443_AC97)
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static void s3c2443_irq_wdtac97_mask(struct irq_data *data)
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{
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s3c_irqsub_mask(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97);
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}
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static void s3c2443_irq_wdtac97_unmask(struct irq_data *data)
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{
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s3c_irqsub_unmask(data->irq, INTMSK_WDTAC97);
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}
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static void s3c2443_irq_wdtac97_ack(struct irq_data *data)
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{
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s3c_irqsub_maskack(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97);
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}
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static struct irq_chip s3c2443_irq_wdtac97 = {
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.irq_mask = s3c2443_irq_wdtac97_mask,
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.irq_unmask = s3c2443_irq_wdtac97_unmask,
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.irq_ack = s3c2443_irq_wdtac97_ack,
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static struct s3c_irq_data init_s3c2443base[32] = {
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{ .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
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{ .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
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{ .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
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{ .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
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{ .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
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{ .type = S3C_IRQTYPE_EDGE, }, /* TICK */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* LCD */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* DMA */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* CFON */
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{ .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* NAND */
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{ .type = S3C_IRQTYPE_EDGE, }, /* USBD */
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{ .type = S3C_IRQTYPE_EDGE, }, /* USBH */
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{ .type = S3C_IRQTYPE_EDGE, }, /* IIC */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
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{ .type = S3C_IRQTYPE_EDGE, }, /* RTC */
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{ .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
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};
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/* LCD sub interrupts */
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static void s3c2443_irq_demux_lcd(unsigned int irq, struct irq_desc *desc)
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{
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s3c2443_irq_demux(IRQ_S3C2443_LCD1, 4);
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}
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#define INTMSK_LCD (1UL << (IRQ_LCD - IRQ_EINT0))
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#define SUBMSK_LCD INTMSK(IRQ_S3C2443_LCD1, IRQ_S3C2443_LCD4)
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static void s3c2443_irq_lcd_mask(struct irq_data *data)
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{
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s3c_irqsub_mask(data->irq, INTMSK_LCD, SUBMSK_LCD);
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}
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static void s3c2443_irq_lcd_unmask(struct irq_data *data)
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{
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s3c_irqsub_unmask(data->irq, INTMSK_LCD);
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}
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static void s3c2443_irq_lcd_ack(struct irq_data *data)
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{
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s3c_irqsub_maskack(data->irq, INTMSK_LCD, SUBMSK_LCD);
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}
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static struct irq_chip s3c2443_irq_lcd = {
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.irq_mask = s3c2443_irq_lcd_mask,
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.irq_unmask = s3c2443_irq_lcd_unmask,
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.irq_ack = s3c2443_irq_lcd_ack,
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static struct s3c_irq_data init_s3c2443subint[32] = {
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
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{ .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
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{ .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */
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{ .type = S3C_IRQTYPE_NONE }, /* reserved */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD1 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
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{ .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
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};
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/* DMA sub interrupts */
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static void s3c2443_irq_demux_dma(unsigned int irq, struct irq_desc *desc)
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{
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s3c2443_irq_demux(IRQ_S3C2443_DMA0, 6);
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}
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#define INTMSK_DMA (1UL << (IRQ_S3C2443_DMA - IRQ_EINT0))
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#define SUBMSK_DMA INTMSK(IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5)
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static void s3c2443_irq_dma_mask(struct irq_data *data)
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{
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s3c_irqsub_mask(data->irq, INTMSK_DMA, SUBMSK_DMA);
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}
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static void s3c2443_irq_dma_unmask(struct irq_data *data)
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{
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s3c_irqsub_unmask(data->irq, INTMSK_DMA);
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}
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static void s3c2443_irq_dma_ack(struct irq_data *data)
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{
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s3c_irqsub_maskack(data->irq, INTMSK_DMA, SUBMSK_DMA);
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}
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static struct irq_chip s3c2443_irq_dma = {
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.irq_mask = s3c2443_irq_dma_mask,
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.irq_unmask = s3c2443_irq_dma_unmask,
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.irq_ack = s3c2443_irq_dma_ack,
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};
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/* UART3 sub interrupts */
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static void s3c2443_irq_demux_uart3(unsigned int irq, struct irq_desc *desc)
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{
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s3c2443_irq_demux(IRQ_S3C2443_RX3, 3);
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}
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#define INTMSK_UART3 (1UL << (IRQ_S3C2443_UART3 - IRQ_EINT0))
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#define SUBMSK_UART3 (0x7 << (IRQ_S3C2443_RX3 - S3C2410_IRQSUB(0)))
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static void s3c2443_irq_uart3_mask(struct irq_data *data)
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{
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s3c_irqsub_mask(data->irq, INTMSK_UART3, SUBMSK_UART3);
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}
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static void s3c2443_irq_uart3_unmask(struct irq_data *data)
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{
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s3c_irqsub_unmask(data->irq, INTMSK_UART3);
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}
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static void s3c2443_irq_uart3_ack(struct irq_data *data)
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{
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s3c_irqsub_maskack(data->irq, INTMSK_UART3, SUBMSK_UART3);
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}
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static struct irq_chip s3c2443_irq_uart3 = {
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.irq_mask = s3c2443_irq_uart3_mask,
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.irq_unmask = s3c2443_irq_uart3_unmask,
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.irq_ack = s3c2443_irq_uart3_ack,
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};
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/* CAM sub interrupts */
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static void s3c2443_irq_demux_cam(unsigned int irq, struct irq_desc *desc)
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{
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s3c2443_irq_demux(IRQ_S3C2440_CAM_C, 4);
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}
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#define INTMSK_CAM (1UL << (IRQ_CAM - IRQ_EINT0))
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#define SUBMSK_CAM INTMSK(IRQ_S3C2440_CAM_C, IRQ_S3C2440_CAM_P)
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static void s3c2443_irq_cam_mask(struct irq_data *data)
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{
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s3c_irqsub_mask(data->irq, INTMSK_CAM, SUBMSK_CAM);
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}
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static void s3c2443_irq_cam_unmask(struct irq_data *data)
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{
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s3c_irqsub_unmask(data->irq, INTMSK_CAM);
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}
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static void s3c2443_irq_cam_ack(struct irq_data *data)
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{
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s3c_irqsub_maskack(data->irq, INTMSK_CAM, SUBMSK_CAM);
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}
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static struct irq_chip s3c2443_irq_cam = {
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.irq_mask = s3c2443_irq_cam_mask,
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.irq_unmask = s3c2443_irq_cam_unmask,
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.irq_ack = s3c2443_irq_cam_ack,
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};
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/* IRQ initialisation code */
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static int s3c2443_add_sub(unsigned int base,
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void (*demux)(unsigned int,
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struct irq_desc *),
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struct irq_chip *chip,
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unsigned int start, unsigned int end)
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{
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unsigned int irqno;
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irq_set_chip_and_handler(base, &s3c_irq_level_chip, handle_level_irq);
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irq_set_chained_handler(base, demux);
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for (irqno = start; irqno <= end; irqno++) {
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irq_set_chip_and_handler(irqno, chip, handle_level_irq);
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set_irq_flags(irqno, IRQF_VALID);
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}
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return 0;
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}
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void __init s3c2443_init_irq(void)
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{
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struct s3c_irq_intc *main_intc;
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pr_info("S3C2443: IRQ Support\n");
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s3c24xx_init_irq();
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#ifdef CONFIG_FIQ
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init_FIQ(FIQ_START);
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#endif
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s3c2443_add_sub(IRQ_CAM, s3c2443_irq_demux_cam, &s3c2443_irq_cam,
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IRQ_S3C2440_CAM_C, IRQ_S3C2440_CAM_P);
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main_intc = s3c24xx_init_intc(NULL, &init_s3c2443base[0], NULL, 0x4a000000);
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if (IS_ERR(main_intc)) {
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pr_err("irq: could not create main interrupt controller\n");
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return;
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}
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s3c2443_add_sub(IRQ_LCD, s3c2443_irq_demux_lcd, &s3c2443_irq_lcd,
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IRQ_S3C2443_LCD1, IRQ_S3C2443_LCD4);
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s3c2443_add_sub(IRQ_S3C2443_DMA, s3c2443_irq_demux_dma,
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&s3c2443_irq_dma, IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5);
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s3c2443_add_sub(IRQ_S3C2443_UART3, s3c2443_irq_demux_uart3,
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&s3c2443_irq_uart3,
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IRQ_S3C2443_RX3, IRQ_S3C2443_ERR3);
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s3c2443_add_sub(IRQ_WDT, s3c2443_irq_demux_wdtac97,
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&s3c2443_irq_wdtac97,
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IRQ_S3C2443_WDT, IRQ_S3C2443_AC97);
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s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
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s3c24xx_init_intc(NULL, &init_s3c2443subint[0], main_intc, 0x4a000018);
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}
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#endif
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