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| author | Kumar Gala <galak@kernel.crashing.org> | 2007-12-07 04:59:26 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-12-11 22:34:20 -0600 |
| commit | d435793229ce29a42797c1edc39f5b34f987f91a (patch) | |
| tree | be66e43419c21c827922d620431716444e6e50e0 /cpu/mpc85xx/spd_sdram.c | |
| parent | 22abb2d2eaf7b795a6923c6273ec9cb53fda9a10 (diff) | |
| download | u-boot-imx-d435793229ce29a42797c1edc39f5b34f987f91a.zip u-boot-imx-d435793229ce29a42797c1edc39f5b34f987f91a.tar.gz u-boot-imx-d435793229ce29a42797c1edc39f5b34f987f91a.tar.bz2 | |
Handle Asynchronous DDR clock on 85xx
The MPC8572 introduces the concept of an asynchronous DDR clock with
regards to the platform clock.
Introduce get_ddr_freq() to report the DDR freq regardless of sync/async
mode.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'cpu/mpc85xx/spd_sdram.c')
| -rw-r--r-- | cpu/mpc85xx/spd_sdram.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/cpu/mpc85xx/spd_sdram.c b/cpu/mpc85xx/spd_sdram.c index 2a4cd57..553f736 100644 --- a/cpu/mpc85xx/spd_sdram.c +++ b/cpu/mpc85xx/spd_sdram.c @@ -53,8 +53,8 @@ picos_to_clk(int picos) { int clks; - clks = picos / (2000000000 / (get_bus_freq(0) / 1000)); - if (picos % (2000000000 / (get_bus_freq(0) / 1000)) != 0) { + clks = picos / (2000000000 / (get_ddr_freq(0) / 1000)); + if (picos % (2000000000 / (get_ddr_freq(0) / 1000)) != 0) { clks++; } @@ -421,7 +421,7 @@ spd_sdram(void) * Adjust the CAS Latency to allow for bus speeds that * are slower than the DDR module. */ - busfreq = get_bus_freq(0) / 1000000; /* MHz */ + busfreq = get_ddr_freq(0) / 1000000; /* MHz */ effective_data_rate = max_data_rate; if (busfreq < 90) { |