From e23ca355b0cf11f043e4fd2484fae6623c602135 Mon Sep 17 00:00:00 2001 From: Alexey Smirnov <s.alexey@gmail.com> Date: Mon, 10 Jan 2022 12:16:40 +0300 Subject: omap: add support for the TRNG Hardware Accelerator According to TI docs (Processor SDK Linux Getting Started Guide) the Random Number Generator hardware is found on OMAP16xx, OMAP2/3/4/5, AM33xx/AM43xx boards. It already defined in device tree files. Let's enable it. Some tests: root@RTS1_OI:~# rngtest -c 1000 </dev/hwrng rngtest 6.10 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 999 rngtest: FIPS 140-2 failures: 1 rngtest: FIPS 140-2(2001-10-10) Monobit: 0 rngtest: FIPS 140-2(2001-10-10) Poker: 0 rngtest: FIPS 140-2(2001-10-10) Runs: 1 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 0 rngtest: input channel speed: (min=198.710; avg=1265.501; max=2976.417)Kibits/s rngtest: FIPS tests speed: (min=1.780; avg=37.085; max=39.736)Mibits/s rngtest: Program run time: 15961329 microseconds Signed-off-by: Alexey Smirnov <s.alexey@gmail.com> --- target/linux/omap/config-5.10 | 2 ++ 1 file changed, 2 insertions(+) (limited to 'target/linux') diff --git a/target/linux/omap/config-5.10 b/target/linux/omap/config-5.10 index 3daa6c0921..5ccadc1307 100644 --- a/target/linux/omap/config-5.10 +++ b/target/linux/omap/config-5.10 @@ -265,6 +265,8 @@ CONFIG_HSI=y CONFIG_HSI_BOARDINFO=y # CONFIG_HSI_CHAR is not set CONFIG_HWMON=y +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_OMAP=y CONFIG_HZ_FIXED=0 CONFIG_I2C=y CONFIG_I2C_ALGOBIT=y -- cgit v1.2.3