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crypto: rockchip: support rk3568 without hwrng in crypto 

Change-Id: I557a05e0336fe6b80d903a48a2d088f165a4eeca
Signed-off-by: Lin Jinhan <troy.lin@rock-chips.com>
This commit is contained in:
Lin Jinhan 2020-11-12 15:12:18 +08:00 committed by Jianhong Chen
parent c7955c9b04
commit 7eea182341
1 changed files with 23 additions and 3 deletions
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26
drivers/crypto/rockchip/crypto_v2.c
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@ -87,6 +87,19 @@ typedef u32 paddr_t;
fdt_addr_t crypto_base;
static int hw_check_trng_exist(void)
{
u32 tmp = 0, val = 0;
tmp = crypto_read(CRYPTO_RNG_SAMPLE_CNT);
crypto_write(50, CRYPTO_RNG_SAMPLE_CNT);
val = crypto_read(CRYPTO_RNG_SAMPLE_CNT);
crypto_write(tmp, CRYPTO_RNG_SAMPLE_CNT);
return val;
}
static void word2byte(u32 word, u8 *ch, u32 endian)
{
/* 0: Big-Endian 1: Little-Endian */
@ -383,7 +396,9 @@ static int rk_trng(u8 *trng, u32 len)
static u32 rockchip_crypto_capability(struct udevice *dev)
{
return CRYPTO_MD5 |
u32 val = 0;
val = CRYPTO_MD5 |
CRYPTO_SHA1 |
CRYPTO_SHA256 |
#if !defined(CONFIG_ROCKCHIP_RK1808)
@ -393,8 +408,12 @@ static u32 rockchip_crypto_capability(struct udevice *dev)
CRYPTO_RSA1024 |
CRYPTO_RSA2048 |
CRYPTO_RSA3072 |
CRYPTO_RSA4096 |
CRYPTO_TRNG;
CRYPTO_RSA4096;
if (hw_check_trng_exist())
val |= CRYPTO_TRNG;
return val;
}
static int rockchip_crypto_sha_init(struct udevice *dev, sha_context *ctx)
@ -670,6 +689,7 @@ static const struct udevice_id rockchip_crypto_ids[] = {
{ .compatible = "rockchip,rk1808-crypto" },
{ .compatible = "rockchip,rk3308-crypto" },
{ .compatible = "rockchip,rv1126-crypto" },
{ .compatible = "rockchip,rk3568-crypto" },
{ }
};