#define EXYNOS4_GPIO_PART4_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_DP_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_SPI_ISP_BASE DEVICE_NOT_AVAILABLE
-#define EXYNOS4_ACE_SFR_BASE DEVICE_NOT_AVAILABLE
+#define EXYNOS4_ACE_SFR_BASE 0x10830000
#define EXYNOS4_DMC_PHY_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_AUDIOSS_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_USB_HOST_XHCI_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_I2S_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_SPI_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_SPI_ISP_BASE DEVICE_NOT_AVAILABLE
-#define EXYNOS4X12_ACE_SFR_BASE DEVICE_NOT_AVAILABLE
+#define EXYNOS4X12_ACE_SFR_BASE 0x10830000
#define EXYNOS4X12_DMC_PHY_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_AUDIOSS_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_USB_HOST_XHCI_BASE DEVICE_NOT_AVAILABLE
if (ace_sha_hash_digest(pbuf, buf_len, pout, ACE_SHA_TYPE_SHA1))
debug("ACE was not setup properly or it is faulty\n");
}
+
+unsigned int hw_rand(void)
+{
+ struct exynos_ace_sfr *reg =
+ (struct exynos_ace_sfr *)samsung_get_base_ace_sfr();
+ int status, i;
+ int seed[5];
+ unsigned int ret = 0;
+
+ /* Seed data */
+ for (i=0; i < ACE_HASH_PRNG_REG_NUM; i++)
+ writel(seed[i], ®->hash_seed[i]);
+
+ status = 0;
+ /* Wait for seed setup done */
+ while (!(status & ACE_HASH_SEEDSETTING_MASK)) {
+ status = readl(®->hash_status);
+ if (status & ACE_HASH_PRNGERROR_MASK)
+ return 0;
+ }
+
+ /* Start PRNG */
+ writel(ACE_HASH_ENGSEL_PRNG | ACE_HASH_STARTBIT_ON, ®->hash_control);
+
+ status = 0;
+ /* Wait for PRNG done */
+ while(!(status & ACE_HASH_PRNGDONE_MASK)) {
+ status = readl(®->hash_status);
+ if (status & ACE_HASH_PRNGERROR_MASK)
+ return 0;
+ }
+
+ /* Clear Done IRQ */
+ writel(ACE_HASH_PRNGDONE_MASK, ®->hash_status);
+
+ /* Read a PRNG result */
+ for (i=0; i < ACE_HASH_PRNG_REG_NUM; i++)
+ ret += readl(®->hash_prng[i]);
+
+ return ret;
+}
unsigned char res12[0x30];
unsigned int hash_result[8];
unsigned char res13[0x20];
- unsigned int hash_seed[8];
- unsigned int hash_prng[8];
- unsigned char res14[0x180];
+ unsigned int hash_seed[5];
+ unsigned char res14[12];
+ unsigned int hash_prng[5];
+ unsigned char res15[0x18c];
unsigned int pka_sfr[5]; /* base + 0x700 */
};
#define ACE_HASH_PRNGERROR_MASK (1 << 7)
#define ACE_HASH_PRNGERROR_OFF (0 << 7)
#define ACE_HASH_PRNGERROR_ON (1 << 7)
+#define ACE_HASH_PRNG_REG_NUM 5
#define ACE_SHA_TYPE_SHA1 1
#define ACE_SHA_TYPE_SHA256 2