Re: [PATCH v2] clk: bcm2835: Do not use prediv with bcm2711's PLLs
From: Stephen Boyd <sboyd@kernel.org>
Date: 2020-08-03 21:27:25
Also in:
linux-clk, lkml
Quoting Nicolas Saenz Julienne (2020-07-30 11:26:19)
Contrary to previous SoCs, bcm2711 doesn't have a prescaler in the PLL
feedback loop. Bypass it by zeroing fb_prediv_mask when running on
bcm2711.
Note that, since the prediv configuration bits were re-purposed, this
was triggering miscalculations on all clocks hanging from the VPU clock,
notably the aux UART, making its output unintelligible.
Fixes: 42de9ad400af ("clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support")
Reported-by: Nathan Chancellor <redacted>
Signed-off-by: Nicolas Saenz Julienne <redacted>
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