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powerpc, 8xx: Properly set CPM frequency in the device tree

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For processors whose core runs at twice the bus frequency,
the fallback frequency calculation in Linux provides a wrong
result. Therefore, U-boot needs to pass the correct value.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Christophe Leroy 2017-07-06 10:33:19 +02:00 • committed by Tom Rini
parent 70fd071001
commit 6f65e75a8a
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/cpu/mpc8xx/fdt.c
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@ -20,6 +20,8 @@ void ft_cpu_setup(void *blob, bd_t *bd)
"bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"clock-frequency", bd->bi_intfreq, 1);
do_fixup_by_compat_u32(blob, "fsl,pq1-soc", "clock-frequency",
bd->bi_intfreq, 1);
do_fixup_by_compat_u32(blob, "fsl,cpm-brg", "clock-frequency",
gd->arch.brg_clk, 1);