#ifndef RND_H #define RND_H #define HIG_ENTROPY_SOURCE "/dev/random" #define LOW_ENTROPY_SOURCE "/dev/urandom" /* secrand is not really secure, but the name only suggests it's better to use * than rand(3) when transferring bytes over the network in non-security * critical structure members. secrand() is only used to fill up salts actually. */ extern int secrand(void); extern void gen_key_bytes(unsigned char *area, size_t len); #endif /* RND_H */ e='net-next.git Git repository'/>
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authorLokesh Vutla <lokeshvutla@ti.com>2016-10-27 11:27:25 +0530
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-11-04 23:11:37 +0100
commit3984903a2e3906d3def220e688040ce93368200a (patch)
tree0dfd07a0079bf488b61fea891f801554bbb884a1
parent368e21aebe9535c1643b272aaa9819298a6bc3e5 (diff)
rtc: omap: Fix selecting external osc
RTC can be clocked from an external 32KHz oscillator, or from the Peripheral PLL. The RTC has an internal oscillator buffer to support direct operation with a crystal. ---------------------------------------- | Device --------- | | | | | | | RTCSS | | | --------- | | | OSC |<------| RTC | | | | |------>| OSC |--- | | | | -------- | | | | | ----|clk | | | -------- | | | | | | PRCM |--- | | | | -------- -------- | ---------------------------------------- The RTC functional clock is sourced by default from the clock derived from the Peripheral PLL. In order to select source as external osc clk the following changes needs to be done: - Enable the RTC OSC (RTC_OSC_REG[4]OSC32K_GZ = 0) - Enable the clock mux(RTC_OSC_REG[6]K32CLK_EN = 1) - Select the external clock source (RTC_OSC_REG[3]32KCLK_SEL = 1) Fixes: 399cf0f63f6f2 ("rtc: omap: Add external clock enabling support") Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>