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| author | Jeffrey Mann <mannj@embeddedplanet.com> | 2007-04-12 14:15:59 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2007-04-12 14:15:59 +0200 |
| commit | 2ad3aba01d37b72e7c957b07e102fccd64fe6d13 (patch) | |
| tree | a97f1aadb17333df38b229fec9be6e1df972315c | |
| parent | e8aac8e7bfc7cfdef5780f8f1d4c85184f59a06f (diff) | |
| download | talos-obmc-uboot-2ad3aba01d37b72e7c957b07e102fccd64fe6d13.tar.gz talos-obmc-uboot-2ad3aba01d37b72e7c957b07e102fccd64fe6d13.zip | |
ppc4xx: Fix i2c divisor calcularion for PPC4xx
This patch fixes changes the i2c_init(...) function to use the function
get_OPB_freq() rather than calculating the OPB speed by
sysInfo.freqPLB/sysInfo.pllOpbDiv. The get_OPB_freq() function is
specific per processor. The prior method was not and so was calculating
the wrong speed for some PPC4xx processors.
Signed-off-by: Jeffrey Mann <mannj@embeddedplanet.com>
Signed-off-by: Stefan Roese <sr@denx.de>
| -rw-r--r-- | cpu/ppc4xx/i2c.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c index 8f4da8621d..47c264e222 100644 --- a/cpu/ppc4xx/i2c.c +++ b/cpu/ppc4xx/i2c.c @@ -91,7 +91,6 @@ static void _i2c_bus_reset(void) void i2c_init(int speed, int slaveadd) { - sys_info_t sysInfo; unsigned long freqOPB; int val, divisor; int bus; @@ -124,8 +123,7 @@ void i2c_init(int speed, int slaveadd) /* Clock divide Register */ /* get OPB frequency */ - get_sys_info(&sysInfo); - freqOPB = sysInfo.freqPLB / sysInfo.pllOpbDiv; + freqOPB = get_OPB_freq(); /* set divisor according to freqOPB */ divisor = (freqOPB - 1) / 10000000; if (divisor == 0) |
