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author | Andreas Westin <andreas.westin@stericsson.com> | 2012-04-30 10:11:17 +0200 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-05-04 19:04:51 +1000 |
commit | 2789c08fffeae270820dda5d096634aecc810af5 (patch) | |
tree | 113e76a6908b4b786374c53f010c472a3d663514 /drivers/crypto/ux500/cryp/cryp_irq.c | |
parent | 028fdd87b79a45544a2b6902989f2cbbf73a3eac (diff) | |
download | blackbird-op-linux-2789c08fffeae270820dda5d096634aecc810af5.tar.gz blackbird-op-linux-2789c08fffeae270820dda5d096634aecc810af5.zip |
crypto: ux500 - Add driver for CRYP hardware
This adds a driver for the ST-Ericsson ux500 crypto hardware
module. It supports AES, DES and 3DES, the driver implements
support for AES-ECB,CBC and CTR.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andreas Westin <andreas.westin@stericsson.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ux500/cryp/cryp_irq.c')
-rw-r--r-- | drivers/crypto/ux500/cryp/cryp_irq.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/crypto/ux500/cryp/cryp_irq.c b/drivers/crypto/ux500/cryp/cryp_irq.c new file mode 100644 index 000000000000..08d291cdbe6d --- /dev/null +++ b/drivers/crypto/ux500/cryp/cryp_irq.c @@ -0,0 +1,45 @@ +/** + * Copyright (C) ST-Ericsson SA 2010 + * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson. + * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson. + * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson. + * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson. + * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson. + * License terms: GNU General Public License (GPL) version 2. + */ + +#include <linux/kernel.h> +#include <linux/bitmap.h> +#include <linux/device.h> + +#include "cryp.h" +#include "cryp_p.h" +#include "cryp_irq.h" +#include "cryp_irqp.h" + +void cryp_enable_irq_src(struct cryp_device_data *device_data, u32 irq_src) +{ + u32 i; + + dev_dbg(device_data->dev, "[%s]", __func__); + + i = readl_relaxed(&device_data->base->imsc); + i = i | irq_src; + writel_relaxed(i, &device_data->base->imsc); +} + +void cryp_disable_irq_src(struct cryp_device_data *device_data, u32 irq_src) +{ + u32 i; + + dev_dbg(device_data->dev, "[%s]", __func__); + + i = readl_relaxed(&device_data->base->imsc); + i = i & ~irq_src; + writel_relaxed(i, &device_data->base->imsc); +} + +bool cryp_pending_irq_src(struct cryp_device_data *device_data, u32 irq_src) +{ + return (readl_relaxed(&device_data->base->mis) & irq_src) > 0; +} |