[U-Boot,3/7] powerpc, 8xx: Properly set CPM frequency in the device tree
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Message ID 840b51922814c679648f73049f38d616b9b5e01b.1498751837.git.christophe.leroy@c-s.fr
State Superseded
Delegated to: Tom Rini
Headers show

Commit Message

Christophe Leroy June 29, 2017, 4:54 p.m. UTC
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(+)

Patch
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diff --git a/arch/powerpc/cpu/mpc8xx/fdt.c b/arch/powerpc/cpu/mpc8xx/fdt.c
index 34d36478d3..5688671fba 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);