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

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>

diff --git a/arch/powerpc/cpu/mpc8xx/fdt.c b/arch/powerpc/cpu/mpc8xx/fdt.c
index 88ee1c502c4af1c8292a56d987224ce7e2487bb9..f9b74ded5a3b436e69131e1e360d537d7f15610d 100644 (file)
--- 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);