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/Linux-v5.15/drivers/char/hw_random/
Datmel-rng.c42 struct atmel_trng *trng = container_of(rng, struct atmel_trng, rng); in atmel_trng_read() local
46 if (readl(trng->base + TRNG_ISR) & 1) { in atmel_trng_read()
47 *data = readl(trng->base + TRNG_ODATA); in atmel_trng_read()
54 readl(trng->base + TRNG_ISR); in atmel_trng_read()
60 static void atmel_trng_enable(struct atmel_trng *trng) in atmel_trng_enable() argument
62 writel(TRNG_KEY | 1, trng->base + TRNG_CR); in atmel_trng_enable()
65 static void atmel_trng_disable(struct atmel_trng *trng) in atmel_trng_disable() argument
67 writel(TRNG_KEY, trng->base + TRNG_CR); in atmel_trng_disable()
72 struct atmel_trng *trng; in atmel_trng_probe() local
76 trng = devm_kzalloc(&pdev->dev, sizeof(*trng), GFP_KERNEL); in atmel_trng_probe()
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Dxiphera-trng.c25 /* trng statuses */
38 struct xiphera_trng *trng = container_of(rng, struct xiphera_trng, rng); in xiphera_trng_read() local
43 if (readl(trng->mem + STATUS_REG) == TRNG_NEW_RAND_AVAILABLE) { in xiphera_trng_read()
44 *(u32 *)buf = readl(trng->mem + RAND_REG); in xiphera_trng_read()
46 * Inform the trng of the read in xiphera_trng_read()
49 writel(HOST_TO_TRNG_READ, trng->mem + CONTROL_REG); in xiphera_trng_read()
50 writel(HOST_TO_TRNG_ENABLE, trng->mem + CONTROL_REG); in xiphera_trng_read()
64 struct xiphera_trng *trng; in xiphera_trng_probe() local
67 trng = devm_kzalloc(dev, sizeof(*trng), GFP_KERNEL); in xiphera_trng_probe()
68 if (!trng) in xiphera_trng_probe()
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Dingenic-trng.c40 struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng); in ingenic_trng_init() local
43 ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_init()
45 writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_init()
52 struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng); in ingenic_trng_cleanup() local
55 ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_cleanup()
57 writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_cleanup()
62 struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng); in ingenic_trng_read() local
67 ret = readl_poll_timeout(trng->base + TRNG_REG_STATUS_OFFSET, status, in ingenic_trng_read()
74 *data = readl(trng->base + TRNG_REG_RANDOMNUM_OFFSET); in ingenic_trng_read()
81 struct ingenic_trng *trng; in ingenic_trng_probe() local
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Dexynos-trng.c58 struct exynos_trng_dev *trng; in exynos_trng_do_read() local
63 trng = (struct exynos_trng_dev *)rng->priv; in exynos_trng_do_read()
65 writel_relaxed(max * 8, trng->mem + EXYNOS_TRNG_FIFO_CTRL); in exynos_trng_do_read()
66 val = readl_poll_timeout(trng->mem + EXYNOS_TRNG_FIFO_CTRL, val, in exynos_trng_do_read()
71 memcpy_fromio(data, trng->mem + EXYNOS_TRNG_FIFO_0, max); in exynos_trng_do_read()
78 struct exynos_trng_dev *trng = (struct exynos_trng_dev *)rng->priv; in exynos_trng_init() local
82 sss_rate = clk_get_rate(trng->clk); in exynos_trng_init()
85 * For most TRNG circuits the clock frequency of under 500 kHz in exynos_trng_init()
90 dev_err(trng->dev, "clock divider too large: %d", val); in exynos_trng_init()
94 writel_relaxed(val, trng->mem + EXYNOS_TRNG_CLKDIV); in exynos_trng_init()
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Darm_smccc_trng.c3 * Randomness driver for the ARM SMCCC TRNG Firmware Interface
8 * The ARM TRNG firmware interface specifies a protocol to read entropy
99 struct hwrng *trng; in smccc_trng_probe() local
101 trng = devm_kzalloc(&pdev->dev, sizeof(*trng), GFP_KERNEL); in smccc_trng_probe()
102 if (!trng) in smccc_trng_probe()
105 trng->name = "smccc_trng"; in smccc_trng_probe()
106 trng->read = smccc_trng_read; in smccc_trng_probe()
108 platform_set_drvdata(pdev, trng); in smccc_trng_probe()
110 return devm_hwrng_register(&pdev->dev, trng); in smccc_trng_probe()
Ds390-trng.c3 * s390 TRNG device driver
5 * Driver for the TRNG (true random number generation) command
12 #define KMSG_COMPONENT "trng"
29 MODULE_DESCRIPTION("s390 CPACF TRNG device driver");
32 /* trng related debug feature things */
42 /* trng helpers */
115 "trng: %llu\n" in trng_counter_show()
123 "trng: %llu\n" in trng_counter_show()
155 .name = "trng",
195 * The trng is supposed to have 100% entropy, and thus we register with a very
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DMakefile17 obj-$(CONFIG_HW_RANDOM_EXYNOS) += exynos-trng.o
27 obj-$(CONFIG_HW_RANDOM_INGENIC_TRNG) += ingenic-trng.o
42 obj-$(CONFIG_HW_RANDOM_S390) += s390-trng.o
47 obj-$(CONFIG_HW_RANDOM_XIPHERA) += xiphera-trng.o
Dpic32-rng.c43 * The TRNG can generate up to 24Mbps. This is a timeout that should be safe
44 * enough given the instructions in the loop and that the TRNG may not always
60 /* TRNG value comes through the seed registers */ in pic32_rng_read()
92 /* enable TRNG in enhanced mode */ in pic32_rng_probe()
DKconfig295 module will be called ingenic-trng.
362 tristate "APM X-Gene True Random Number Generator (TRNG) support"
452 module will be called s390-trng.
465 will be called exynos-trng.
525 module will be called xiphera-trng.
528 tristate "Arm SMCCC TRNG firmware interface support"
533 the Arm SMCCC TRNG firmware interface. This reads entropy from
Dks-sa-rng.c28 /* TRNG enable control in SA System module*/
31 /* TRNG start control in TRNG module */
139 /* Disable all interrupts from TRNG */ in ks_sa_rng_init()
Dba431-rng.c200 dev_info(&pdev->dev, "BA431 TRNG registered\n"); in ba431_trng_probe()
222 MODULE_DESCRIPTION("TRNG driver for Silex Insight BA431");
/Linux-v5.15/drivers/crypto/hisilicon/trng/
Dtrng.c61 struct hisi_trng *trng; member
67 static void hisi_trng_set_seed(struct hisi_trng *trng, const u8 *seed) in hisi_trng_set_seed() argument
79 writel(val, trng->base + SW_DRBG_SEED(seed_reg)); in hisi_trng_set_seed()
87 struct hisi_trng *trng = ctx->trng; in hisi_trng_seed() local
92 pr_err("slen(%u) is not matched with trng(%d)\n", slen, in hisi_trng_seed()
97 writel(0x0, trng->base + SW_DRBG_BLOCKS); in hisi_trng_seed()
98 hisi_trng_set_seed(trng, seed); in hisi_trng_seed()
101 trng->base + SW_DRBG_BLOCKS); in hisi_trng_seed()
102 writel(0x1, trng->base + SW_DRBG_INIT); in hisi_trng_seed()
104 ret = readl_relaxed_poll_timeout(trng->base + SW_DRBG_STATUS, in hisi_trng_seed()
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DMakefile1 obj-$(CONFIG_CRYPTO_DEV_HISI_TRNG) += hisi-trng-v2.o
2 hisi-trng-v2-objs = trng.o
/Linux-v5.15/drivers/crypto/allwinner/sun8i-ce/
Dsun8i-ce-trng.c3 * sun8i-ce-trng.c - hardware cryptographic offloader for
8 * This file handle the TRNG
17 * Note that according to the algorithm ID, 2 versions of the TRNG exists,
35 ce = container_of(rng, struct sun8i_ce_dev, trng); in sun8i_ce_trng_read()
70 common = ce->variant->trng | CE_COMM_INT; in sun8i_ce_trng_read()
86 err = sun8i_ce_run_task(ce, 3, "TRNG"); in sun8i_ce_trng_read()
107 if (ce->variant->trng == CE_ID_NOTSUPP) { in sun8i_ce_hwrng_register()
108 dev_info(ce->dev, "TRNG not supported\n"); in sun8i_ce_hwrng_register()
111 ce->trng.name = "sun8i Crypto Engine TRNG"; in sun8i_ce_hwrng_register()
112 ce->trng.read = sun8i_ce_trng_read; in sun8i_ce_hwrng_register()
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Dsun8i-ce.h136 * @trng_t_dlen_in_bytes: Does the request size for TRNG is in
141 * @trng: The CE_ALG_XXX value for the TRNG
154 unsigned char trng; member
231 struct hwrng trng; member
/Linux-v5.15/drivers/crypto/amcc/
Dcrypto4xx_trng.c74 struct device_node *trng = NULL; in ppc4xx_trng_probe() local
78 /* Find the TRNG device node and map it */ in ppc4xx_trng_probe()
79 trng = of_find_matching_node(NULL, ppc4xx_trng_match); in ppc4xx_trng_probe()
80 if (!trng || !of_device_is_available(trng)) { in ppc4xx_trng_probe()
81 of_node_put(trng); in ppc4xx_trng_probe()
85 dev->trng_base = of_iomap(trng, 0); in ppc4xx_trng_probe()
86 of_node_put(trng); in ppc4xx_trng_probe()
98 core_dev->trng = rng; in ppc4xx_trng_probe()
101 err = devm_hwrng_register(core_dev->device, core_dev->trng); in ppc4xx_trng_probe()
114 core_dev->trng = NULL; in ppc4xx_trng_probe()
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/Linux-v5.15/Documentation/devicetree/bindings/rng/
Datmel-trng.txt1 Atmel TRNG (True Random Number Generator) block
4 - compatible : Should be "atmel,at91sam9g45-trng" or "microchip,sam9x60-trng"
6 - interrupts : the interrupt number for the TRNG block
7 - clocks: should contain the TRNG clk source
11 trng@fffcc000 {
12 compatible = "atmel,at91sam9g45-trng";
Darm-cctrng.yaml7 title: Arm TrustZone CryptoCell TRNG engine
13 Arm TrustZone CryptoCell TRNG (True Random Number Generator) engine.
18 - arm,cryptocell-713-trng
19 - arm,cryptocell-703-trng
29 Arm TrustZone CryptoCell TRNG engine has 4 ring oscillators.
48 compatible = "arm,cryptocell-713-trng";
Dxiphera,xip8001b-trng.yaml4 $id: http://devicetree.org/schemas/rng/xiphera,xip8001b-trng.yaml#
7 title: Xiphera XIP8001B-trng bindings
17 const: xiphera,xip8001b-trng
31 compatible = "xiphera,xip8001b-trng";
Dsamsung,exynos5250-trng.yaml4 $id: http://devicetree.org/schemas/rng/samsung,exynos5250-trng.yaml#
15 const: samsung,exynos5250-trng
40 compatible = "samsung,exynos5250-trng";
Dingenic,trng.yaml4 $id: http://devicetree.org/schemas/rng/ingenic,trng.yaml#
37 dtrng: trng@10072000 {
Domap_rng.txt15 - clocks: the trng clock source. Only mandatory for the
33 trng: rng@f2760000 {
/Linux-v5.15/drivers/crypto/gemini/
Dsl3516-ce-rng.c20 ce = container_of(rng, struct sl3516_ce_dev, trng); in sl3516_ce_rng_read()
48 ce->trng.name = "SL3516 Crypto Engine RNG"; in sl3516_ce_rng_register()
49 ce->trng.read = sl3516_ce_rng_read; in sl3516_ce_rng_register()
50 ce->trng.quality = 700; in sl3516_ce_rng_register()
52 ret = hwrng_register(&ce->trng); in sl3516_ce_rng_register()
60 hwrng_unregister(&ce->trng); in sl3516_ce_rng_unregister()
/Linux-v5.15/arch/s390/crypto/
Darch_random.c115 * trng which is assumed to deliver 100% entropy. So the 32 * 8 = 256
126 * it is re-seeded by fresh entropy from the trng.
128 * KB with 32 bytes of fresh entropy pulled from the trng. So a value
157 /* fetch seed from trng */ in refill_rndlong_buf()
/Linux-v5.15/drivers/crypto/hisilicon/
DKconfig78 tristate "Support for HISI TRNG Driver"
83 Support for HiSilicon TRNG Driver.

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