After applying the following changes I could verify functionality by mounting a filesystem on the cfdisk and reading/writing files in it. The set_irq_type() function must be wrong, as there is no set_type() function defined for the rb532 IRQ chip. But as the used IRQ actually is being triggered by a GPIO, setting it's interrupt level should be the right alternative. Also to clear a GPIO triggered IRQ, the source has to be cleared. This is being done at the end of rb532_pata_irq_handler. Signed-off-by: Phil Sutter Acked-by: Florian Fainelli --- drivers/ata/pata_rb532_cf.c | 15 ++++++++++----- 1 files changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c index f8b3ffc..7b11f40 100644 --- a/drivers/ata/pata_rb532_cf.c +++ b/drivers/ata/pata_rb532_cf.c @@ -31,6 +31,7 @@ #include #include +#include #define DRV_NAME "pata-rb532-cf" #define DRV_VERSION "0.1.0" @@ -39,7 +40,8 @@ #define RB500_CF_MAXPORTS 1 #define RB500_CF_IO_DELAY 400 -#define RB500_CF_REG_CMD 0x0800 +#define RB500_CF_REG_BASE 0x0800 +#define RB500_CF_REG_ERR 0x080D #define RB500_CF_REG_CTRL 0x080E #define RB500_CF_REG_DATA 0x0C00 @@ -62,7 +64,7 @@ static inline void rb532_pata_finish_io(struct ata_port *ap) ata_sff_dma_pause(ap); ndelay(RB500_CF_IO_DELAY); - set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH); + rb532_gpio_set_ilevel(1, info->gpio_line); } static void rb532_pata_exec_command(struct ata_port *ap, @@ -109,13 +111,15 @@ static irqreturn_t rb532_pata_irq_handler(int irq, void *dev_instance) struct rb532_cf_info *info = ah->private_data; if (gpio_get_value(info->gpio_line)) { - set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW); + rb532_gpio_set_ilevel(0, info->gpio_line); if (!info->frozen) ata_sff_interrupt(info->irq, dev_instance); } else { - set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH); + rb532_gpio_set_ilevel(1, info->gpio_line); } + rb532_gpio_set_istat(0, info->gpio_line); + return IRQ_HANDLED; } @@ -146,13 +150,14 @@ static void rb532_pata_setup_ports(struct ata_host *ah) ap->pio_mask = 0x1f; /* PIO4 */ ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO; - ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_CMD; + ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_BASE; ap->ioaddr.ctl_addr = info->iobase + RB500_CF_REG_CTRL; ap->ioaddr.altstatus_addr = info->iobase + RB500_CF_REG_CTRL; ata_sff_std_ports(&ap->ioaddr); ap->ioaddr.data_addr = info->iobase + RB500_CF_REG_DATA; + ap->ioaddr.error_addr = info->iobase + RB500_CF_REG_ERR; } static __devinit int rb532_pata_driver_probe(struct platform_device *pdev) -- 1.5.6.4