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/linux/drivers/char/hw_random/
H A Dairoha-trng.c53 static int airoha_trng_irq_mask(struct airoha_trng *trng) in airoha_trng_irq_mask() argument
57 val = readl(trng->base + TRNG_INTR_EN); in airoha_trng_irq_mask()
59 writel(val, trng->base + TRNG_INTR_EN); in airoha_trng_irq_mask()
64 static int airoha_trng_irq_unmask(struct airoha_trng *trng) in airoha_trng_irq_unmask() argument
68 val = readl(trng->base + TRNG_INTR_EN); in airoha_trng_irq_unmask()
70 writel(val, trng->base + TRNG_INTR_EN); in airoha_trng_irq_unmask()
77 struct airoha_trng *trng = container_of(rng, struct airoha_trng, rng); in airoha_trng_init() local
81 val = readl(trng->base + TRNG_NS_SEK_AND_DAT_EN); in airoha_trng_init()
83 writel(val, trng->base + TRNG_NS_SEK_AND_DAT_EN); in airoha_trng_init()
86 airoha_trng_irq_unmask(trng); in airoha_trng_init()
[all …]
H A Datmel-rng.c43 static bool atmel_trng_wait_ready(struct atmel_trng *trng, bool wait) in atmel_trng_wait_ready() argument
47 ready = readl(trng->base + TRNG_ISR) & TRNG_ISR_DATRDY; in atmel_trng_wait_ready()
49 readl_poll_timeout(trng->base + TRNG_ISR, ready, in atmel_trng_wait_ready()
58 struct atmel_trng *trng = container_of(rng, struct atmel_trng, rng); in atmel_trng_read() local
62 ret = pm_runtime_get_sync(trng->dev); in atmel_trng_read()
64 pm_runtime_put_sync(trng->dev); in atmel_trng_read()
68 ret = atmel_trng_wait_ready(trng, wait); in atmel_trng_read()
72 *data = readl(trng->base + TRNG_ODATA); in atmel_trng_read()
78 readl(trng->base + TRNG_ISR); in atmel_trng_read()
82 pm_runtime_put_sync_autosuspend(trng->dev); in atmel_trng_read()
[all …]
H A Dxiphera-trng.c23 /* trng statuses */
36 struct xiphera_trng *trng = container_of(rng, struct xiphera_trng, rng); in xiphera_trng_read() local
41 if (readl(trng->mem + STATUS_REG) == TRNG_NEW_RAND_AVAILABLE) { in xiphera_trng_read()
42 *(u32 *)buf = readl(trng->mem + RAND_REG); in xiphera_trng_read()
44 * Inform the trng of the read in xiphera_trng_read()
47 writel(HOST_TO_TRNG_READ, trng->mem + CONTROL_REG); in xiphera_trng_read()
48 writel(HOST_TO_TRNG_ENABLE, trng->mem + CONTROL_REG); in xiphera_trng_read()
62 struct xiphera_trng *trng; in xiphera_trng_probe() local
65 trng = devm_kzalloc(dev, sizeof(*trng), GFP_KERNEL); in xiphera_trng_probe()
66 if (!trng) in xiphera_trng_probe()
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H A Dexynos-trng.c84 struct exynos_trng_dev *trng = (struct exynos_trng_dev *)rng->priv; in exynos_trng_do_read_reg() local
88 writel_relaxed(max * 8, trng->mem + EXYNOS_TRNG_FIFO_CTRL); in exynos_trng_do_read_reg()
89 val = readl_poll_timeout(trng->mem + EXYNOS_TRNG_FIFO_CTRL, val, in exynos_trng_do_read_reg()
94 memcpy_fromio(data, trng->mem + EXYNOS_TRNG_FIFO_0, max); in exynos_trng_do_read_reg()
134 struct exynos_trng_dev *trng = (struct exynos_trng_dev *)rng->priv; in exynos_trng_init_reg() local
138 sss_rate = clk_get_rate(trng->clk); in exynos_trng_init_reg()
141 * For most TRNG circuits the clock frequency of under 500 kHz in exynos_trng_init_reg()
146 dev_err(trng->dev, "clock divider too large: %d\n", val); in exynos_trng_init_reg()
150 writel_relaxed(val, trng->mem + EXYNOS_TRNG_CLKDIV); in exynos_trng_init_reg()
154 writel_relaxed(val, trng->mem + EXYNOS_TRNG_CTRL); in exynos_trng_init_reg()
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H A Dingenic-trng.c36 struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng); in ingenic_trng_init() local
39 ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_init()
41 writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_init()
48 struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng); in ingenic_trng_cleanup() local
51 ctrl = readl(trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_cleanup()
53 writel(ctrl, trng->base + TRNG_REG_CFG_OFFSET); in ingenic_trng_cleanup()
58 struct ingenic_trng *trng = container_of(rng, struct ingenic_trng, rng); in ingenic_trng_read() local
63 ret = readl_poll_timeout(trng->base + TRNG_REG_STATUS_OFFSET, status, in ingenic_trng_read()
70 *data = readl(trng->base + TRNG_REG_RANDOMNUM_OFFSET); in ingenic_trng_read()
77 struct ingenic_trng *trng; in ingenic_trng_probe() local
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H A Dxilinx-trng.c19 /* TRNG Registers Offsets */
54 struct hwrng trng; member
101 /* TRNG core generate data in 16 bytes. Read twice to complete 32 bytes read */ in xtrng_readblock32()
192 /* Collect some output from the TRNG. */ in xtrng_reseed_internal()
198 /* Extract entropy from the TRNG output using HKDF-SHA512-Extract. */ in xtrng_reseed_internal()
255 rng = container_of(hwrng, struct xilinx_rng, trng); in xtrng_hwrng_trng_read()
270 static int xtrng_hwrng_register(struct hwrng *trng) in xtrng_hwrng_register() argument
274 trng->name = "Xilinx Versal Crypto Engine TRNG"; in xtrng_hwrng_register()
275 trng->read = xtrng_hwrng_trng_read; in xtrng_hwrng_register()
277 ret = hwrng_register(trng); in xtrng_hwrng_register()
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H A 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 return devm_hwrng_register(&pdev->dev, trng); in smccc_trng_probe()
121 MODULE_DESCRIPTION("Arm SMCCC TRNG firmware interface support");
H A Dpic32-rng.c33 * The TRNG can generate up to 24Mbps. This is a timeout that should be safe
34 * enough given the instructions in the loop and that the TRNG may not always
43 /* enable TRNG in enhanced mode */ in pic32_rng_init()
59 /* TRNG value comes through the seed registers */ in pic32_rng_read()
H A Dba431-rng.c195 dev_info(&pdev->dev, "BA431 TRNG registered\n"); in ba431_trng_probe()
217 MODULE_DESCRIPTION("TRNG driver for Silex Insight BA431");
/linux/drivers/crypto/amcc/
H A 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/drivers/platform/cznic/
H A Dturris-omnia-mcu-trng.c3 * CZ.NIC's Turris Omnia MCU TRNG driver
34 struct omnia_mcu *mcu = container_of(rng, struct omnia_mcu, trng); in omnia_trng_read()
69 * If someone else cleared the TRNG interrupt but did not read the in omnia_mcu_register_trng()
82 "turris-omnia-mcu-trng"); in omnia_mcu_register_trng()
84 return dev_err_probe(dev, err, "Cannot request TRNG IRQ\n"); in omnia_mcu_register_trng()
86 mcu->trng.name = "turris-omnia-mcu-trng"; in omnia_mcu_register_trng()
87 mcu->trng.read = omnia_trng_read; in omnia_mcu_register_trng()
89 err = devm_hwrng_register(dev, &mcu->trng); in omnia_mcu_register_trng()
91 return dev_err_probe(dev, err, "Cannot register TRNG\n"); in omnia_mcu_register_trng()
H A Dturris-omnia-mcu.h62 * @trng: RNG driver structure
100 struct hwrng trng; member
H A DMakefile8 turris-omnia-mcu-$(CONFIG_TURRIS_OMNIA_MCU_TRNG) += turris-omnia-mcu-trng.o
/linux/Documentation/devicetree/bindings/rng/
H A 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";
H A Dstarfive,jh7110-trng.yaml4 $id: http://devicetree.org/schemas/rng/starfive,jh7110-trng.yaml#
7 title: StarFive SoC TRNG Module
16 - const: starfive,jh8100-trng
17 - const: starfive,jh7110-trng
18 - const: starfive,jh7110-trng
52 compatible = "starfive,jh7110-trng";
H A Dxiphera,xip8001b-trng.yaml4 $id: http://devicetree.org/schemas/rng/xiphera,xip8001b-trng.yaml#
7 title: Xiphera XIP8001B-trng
17 const: xiphera,xip8001b-trng
31 compatible = "xiphera,xip8001b-trng";
H A Drockchip,rk3568-rng.yaml7 title: Rockchip RK3568 TRNG
25 - description: TRNG clock
26 - description: TRNG AHB clock
H A Dingenic,trng.yaml4 $id: http://devicetree.org/schemas/rng/ingenic,trng.yaml#
37 dtrng: trng@10072000 {
/linux/drivers/crypto/gemini/
H A 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()
H A Dsl3516-ce.h216 * @trng hw_random structure for RNG
243 struct hwrng trng; member
/linux/Documentation/devicetree/bindings/crypto/
H A Dallwinner,sun8i-ce.yaml34 - description: TRNG clock (RC oscillator)
42 - const: trng
H A Dsamsung-sss.yaml24 -- True Random Number Generator (TRNG)
/linux/Documentation/devicetree/bindings/soc/imx/
H A Dfsl,imx8mp-hdmi-blk-ctrl.yaml40 - const: trng
95 power-domain-names = "bus", "irqsteer", "lcdif", "pai", "pvi", "trng",
/linux/arch/arm/boot/dts/samsung/
H A Dexynos5.dtsi218 trng: rng@10830600 { label
219 compatible = "samsung,exynos5250-trng";
/linux/Documentation/devicetree/bindings/firmware/
H A Dcznic,turris-omnia-mcu.yaml44 13 TRNG entropy ready

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