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clk: stm32mp: enable RTCAPB clock for dual-core chips 

In order to correctly manage the bring-up of non boot CPUs, the RTCAPB
clock needs to be enabled.
It controls the access to backup registers, where the CPU entrypoint
will be stored.

Change-Id: Ifeeceb4faf64bc9e0778030444f437cc0bb27272
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
This commit is contained in:
Yann Gautier 2019-05-20 14:39:26 +02:00
parent b2182cde09
commit 6cb45f8984
1 changed files with 9 additions and 0 deletions
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9
drivers/st/clk/stm32mp1_clk.c
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@ -1912,9 +1912,18 @@ static void stm32mp1_osc_init(void)
}
}
static void sync_earlyboot_clocks_state(void)
{
if (!stm32mp_is_single_core()) {
stm32mp1_clk_enable_secure(RTCAPB);
}
}
int stm32mp1_clk_probe(void)
{
stm32mp1_osc_init();
sync_earlyboot_clocks_state();
return 0;
}