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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2024-03-13 11:56:31 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2024-03-15 08:07:39 +0100 |
| commit | 276048a59a225f543e16563ac35103cfe5f2a6e8 (patch) | |
| tree | ede1676501134ea611db2ca77a978b048f0933be /arch/arm/mach-omap | |
| parent | 45080577a633cb4b2270e2dcbcef0752913d692d (diff) | |
| download | barebox-276048a59a225f543e16563ac35103cfe5f2a6e8.tar.gz barebox-276048a59a225f543e16563ac35103cfe5f2a6e8.tar.xz | |
hw_random: add OMAP RNG driver
To enable proper hardening with stack protector, add support for the
OMAP RNG driver. This has been tested on a Beagle Bone Black.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240313105631.686778-13-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-omap')
| -rw-r--r-- | arch/arm/mach-omap/am33xx_clock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-omap/am33xx_clock.c b/arch/arm/mach-omap/am33xx_clock.c index eeb7e93329..4ba10491be 100644 --- a/arch/arm/mach-omap/am33xx_clock.c +++ b/arch/arm/mach-omap/am33xx_clock.c @@ -169,6 +169,11 @@ void am33xx_enable_per_clocks(void) __raw_writel(PRCM_MOD_EN, CM_WKUP_ADC_TSC_CLKCTRL); while (__raw_readl(CM_WKUP_ADC_TSC_CLKCTRL) != PRCM_MOD_EN); + if (IS_ENABLED(CONFIG_HW_RANDOM_OMAP)) { + __raw_writel(PRCM_MOD_EN, CM_PER_RNG_CLKCTRL); + while ((__raw_readl(CM_PER_RNG_CLKCTRL) & 0x30000) != 0x0); + } + clkdcoldo = __raw_readl(CM_CLKDCOLDO_DPLL_PER); clkdcoldo = clkdcoldo | 0x100; __raw_writel(clkdcoldo, CM_CLKDCOLDO_DPLL_PER); |