Commit 7d7c704d authored by Lokesh Vutla's avatar Lokesh Vutla Committed by Herbert Xu
Browse files

crypto: omap-sham - Add OMAP5/AM43XX SHAM Support 



Add support for the OMAP5 version of the SHAM module
that is present on OMAP5 and AM43xx SoCs.

This module is very simialar to OMAP4 version of SHAM module,
and adds SHA384 SHA512 hardware-accelerated hash functions to it.
To handle the higher digest size of SHA512, few SHA512_DIGEST_i
(i=1-16, and first 8 registers are duplicated from SHA_DIGEST_i
registers) registers are added at the end of register set.
So adding the above register offsets and module info in pdata.

Signed-off-by: default avatarLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent eaef7e3f

drivers/crypto/omap-sham.c

+44 −0
Original line number Diff line number Diff line
@@ -1718,6 +1718,46 @@ static const struct omap_sham_pdata omap_sham_pdata_omap4 = { 
	.minor_shift	= 0,

};



static struct omap_sham_algs_info omap_sham_algs_info_omap5[] = {

	{

		.algs_list	= algs_sha1_md5,

		.size		= ARRAY_SIZE(algs_sha1_md5),

	},

	{

		.algs_list	= algs_sha224_sha256,

		.size		= ARRAY_SIZE(algs_sha224_sha256),

	},

	{

		.algs_list	= algs_sha384_sha512,

		.size		= ARRAY_SIZE(algs_sha384_sha512),

	},

};



static const struct omap_sham_pdata omap_sham_pdata_omap5 = {

	.algs_info	= omap_sham_algs_info_omap5,

	.algs_info_size	= ARRAY_SIZE(omap_sham_algs_info_omap5),

	.flags		= BIT(FLAGS_AUTO_XOR),

	.digest_size	= SHA512_DIGEST_SIZE,

	.copy_hash	= omap_sham_copy_hash_omap4,

	.write_ctrl	= omap_sham_write_ctrl_omap4,

	.trigger	= omap_sham_trigger_omap4,

	.poll_irq	= omap_sham_poll_irq_omap4,

	.intr_hdlr	= omap_sham_irq_omap4,

	.idigest_ofs	= 0x240,

	.odigest_ofs	= 0x200,

	.din_ofs	= 0x080,

	.digcnt_ofs	= 0x280,

	.rev_ofs	= 0x100,

	.mask_ofs	= 0x110,

	.sysstatus_ofs	= 0x114,

	.mode_ofs	= 0x284,

	.length_ofs	= 0x288,

	.major_mask	= 0x0700,

	.major_shift	= 8,

	.minor_mask	= 0x003f,

	.minor_shift	= 0,

};



static const struct of_device_id omap_sham_of_match[] = {

	{

		.compatible	= "ti,omap2-sham",
@@ -1727,6 +1767,10 @@ static const struct of_device_id omap_sham_of_match[] = { 
		.compatible	= "ti,omap4-sham",

		.data		= &omap_sham_pdata_omap4,

	},

	{

		.compatible	= "ti,omap5-sham",

		.data		= &omap_sham_pdata_omap5,

	},

	{},

};

MODULE_DEVICE_TABLE(of, omap_sham_of_match);

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