static void crypto_ahash_dma_start(struct rk_crypto_info *dev)
{
CRYPTO_WRITE(dev, RK_CRYPTO_HRDMAS, dev->addr_in);
CRYPTO_WRITE(dev, RK_CRYPTO_HRDMAL, (dev->count + 3) / 4);
CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, RK_CRYPTO_HASH_START |
(RK_CRYPTO_HASH_START << 16));
}
static void rk_ahash_reg_init(struct rk_crypto_info *dev)
{
int reg_status = 0;
reg_status = CRYPTO_READ(dev, RK_CRYPTO_CTRL) |
RK_CRYPTO_HASH_FLUSH | _SBF(0xffff, 16);
CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, reg_status);
reg_status = CRYPTO_READ(dev, RK_CRYPTO_CTRL);
reg_status &= (~RK_CRYPTO_HASH_FLUSH);
reg_status |= _SBF(0xffff, 16);
CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, reg_status);
memset_io(dev->reg + RK_CRYPTO_HASH_DOUT_0, 0, 32);
CRYPTO_WRITE(dev, RK_CRYPTO_INTENA, RK_CRYPTO_HRDMA_ERR_ENA |
RK_CRYPTO_HRDMA_DONE_ENA);
CRYPTO_WRITE(dev, RK_CRYPTO_INTSTS, RK_CRYPTO_HRDMA_ERR_INT |
RK_CRYPTO_HRDMA_DONE_INT);
CRYPTO_WRITE(dev, RK_CRYPTO_HASH_CTRL, dev->mode |
RK_CRYPTO_HASH_SWAP_DO);
CRYPTO_WRITE(dev, RK_CRYPTO_CONF, RK_CRYPTO_BYTESWAP_HRFIFO |
RK_CRYPTO_BYTESWAP_BRFIFO |
RK_CRYPTO_BYTESWAP_BTFIFO);
CRYPTO_WRITE(dev, RK_CRYPTO_HASH_MSG_LEN, dev->total);
}
static irqreturn_t rk_crypto_irq_handle(int irq, void *dev_id)
{
struct rk_crypto_info *dev = platform_get_drvdata(dev_id);
u32 interrupt_status;
spin_lock(&dev->lock);
interrupt_status = CRYPTO_READ(dev, RK_CRYPTO_INTSTS);
CRYPTO_WRITE(dev, RK_CRYPTO_INTSTS, interrupt_status);
if (interrupt_status & 0x0a) {
dev_warn(dev->dev, "DMA Error\n");
dev->err = -EFAULT;
}
tasklet_schedule(&dev->done_task);
spin_unlock(&dev->lock);
return IRQ_HANDLED;
}
static irqreturn_t rk_crypto_irq_handle(int irq, void *dev_id)
{
struct rk_crypto_info *dev = platform_get_drvdata(dev_id);
u32 interrupt_status;
int err = 0;
spin_lock(&dev->lock);
interrupt_status = CRYPTO_READ(dev, RK_CRYPTO_INTSTS);
CRYPTO_WRITE(dev, RK_CRYPTO_INTSTS, interrupt_status);
if (interrupt_status & 0x0a) {
dev_warn(dev->dev, "DMA Error\n");
err = -EFAULT;
} else if (interrupt_status & 0x05) {
err = dev->update(dev);
}
if (err)
dev->complete(dev, err);
spin_unlock(&dev->lock);
return IRQ_HANDLED;
}
