[U-Boot] [PATCH v2 06/10] powerpc, 8xx: Properly set CPM frequency in the device tree

Christophe Leroy
2017-07-06T08:33:19Z

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>
---
arch/powerpc/cpu/mpc8xx/fdt.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/cpu/mpc8xx/fdt.c b/arch/powerpc/cpu/mpc8xx/fdt.c
index 88ee1c502c..f9b74ded5a 100644
--- a/arch/powerpc/cpu/mpc8xx/fdt.c
+++ b/arch/powerpc/cpu/mpc8xx/fdt.c
@@ -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);

--
2.12.0