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MPC8260: fixup device tree by property instead of path

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cpu/mpc8260/cpu.c used to use do_fixup_by_path_u32() to update the
clock frequencies in the device tree, using a CPU path
"/cpus/OF_CPU", with OF_CPU beind defined in the board config file.

However, this does not work when one board config file (here:
MPC8260ADS.h) is intended to be used for several diffrent CPUs and
therefor contains a generic definition like "cpu@0", as the device
trees that will then be loaded will contain specific names like
"PowerPC,8272@0".

We switch to using do_fixup_by_prop_u32() instead, so we can search
for device_type="cpu", as it is done in other architectures, too.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Wolfgang Denk 2009-05-12 15:17:35 +02:00
parent 12a6753155
commit fe6da48373
1 changed files with 6 additions and 5 deletions
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11
cpu/mpc8260/cpu.c
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@ -304,8 +304,6 @@ void watchdog_reset (void)
#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
void ft_cpu_setup (void *blob, bd_t *bd)
{
char * cpu_path = "/cpus/" OF_CPU;
#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
fdt_fixup_ethernet(blob);
@ -314,9 +312,12 @@ void ft_cpu_setup (void *blob, bd_t *bd)
do_fixup_by_compat_u32(blob, "fsl,cpm2-brg",
"clock-frequency", bd->bi_brgfreq, 1);
do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1);
do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"timebase-frequency", OF_TBCLK, 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"clock-frequency", bd->bi_intfreq, 1);
}
#endif /* CONFIG_OF_LIBFDT */