diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c index 18912521a7a5..1d103f997dc2 100644 --- a/drivers/crypto/amcc/crypto4xx_core.c +++ b/drivers/crypto/amcc/crypto4xx_core.c @@ -51,6 +51,7 @@ static void crypto4xx_hw_init(struct crypto4xx_device *dev) union ce_io_threshold io_threshold; u32 rand_num; union ce_pe_dma_cfg pe_dma_cfg; + u32 device_ctrl; writel(PPC4XX_BYTE_ORDER, dev->ce_base + CRYPTO4XX_BYTE_ORDER_CFG); /* setup pe dma, include reset sg, pdr and pe, then release reset */ @@ -84,7 +85,9 @@ static void crypto4xx_hw_init(struct crypto4xx_device *dev) writel(ring_size.w, dev->ce_base + CRYPTO4XX_RING_SIZE); ring_ctrl.w = 0; writel(ring_ctrl.w, dev->ce_base + CRYPTO4XX_RING_CTRL); - writel(PPC4XX_DC_3DES_EN, dev->ce_base + CRYPTO4XX_DEVICE_CTRL); + device_ctrl = readl(dev->ce_base + CRYPTO4XX_DEVICE_CTRL); + device_ctrl |= PPC4XX_DC_3DES_EN; + writel(device_ctrl, dev->ce_base + CRYPTO4XX_DEVICE_CTRL); writel(dev->gdr_pa, dev->ce_base + CRYPTO4XX_GATH_RING_BASE); writel(dev->sdr_pa, dev->ce_base + CRYPTO4XX_SCAT_RING_BASE); part_ring_size.w = 0; |