GPIO_STATUS
data32 = ioread32(card->config_regs + GPIO_STATUS);
iowrite32(data32, card->config_regs + GPIO_STATUS);
iowrite32(data32, card->config_regs + GPIO_STATUS);
data32 = ioread32(card->config_regs + GPIO_STATUS);
data32 = ioread32(card->config_regs + GPIO_STATUS);