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| author | wdenk <wdenk> | 2003-06-20 23:10:58 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2003-06-20 23:10:58 +0000 |
| commit | 72755c7137396fdd8230dfc498294760fa2aaeb4 (patch) | |
| tree | e5726d1a8ac606f027c3d0c04e2806a00bf94d6a /cpu/74xx_7xx/speed.c | |
| parent | 0332990b8508cea232b2f2ae47283cf395c7ee62 (diff) | |
| download | u-boot-midas-72755c7137396fdd8230dfc498294760fa2aaeb4.tar.gz u-boot-midas-72755c7137396fdd8230dfc498294760fa2aaeb4.tar.bz2 u-boot-midas-72755c7137396fdd8230dfc498294760fa2aaeb4.zip | |
Patch by Tom Guilliams, 20 Jun 2003:
added CONFIG_750FX support for IBM 750FX processors
Diffstat (limited to 'cpu/74xx_7xx/speed.c')
| -rw-r--r-- | cpu/74xx_7xx/speed.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c index ac99bcd5b3..23b71d4165 100644 --- a/cpu/74xx_7xx/speed.c +++ b/cpu/74xx_7xx/speed.c @@ -48,6 +48,33 @@ static const int hid1_multipliers_x_10[] = { 0 /* 1111 - off */ }; +static const int hid1_fx_multipliers_x_10[] = { + 00, /* 0000 - off */ + 00, /* 0001 - off */ + 10, /* 0010 - bypass */ + 10, /* 0011 - bypass */ + 20, /* 0100 - 2x */ + 25, /* 0101 - 2.5x */ + 30, /* 0110 - 3x */ + 35, /* 0111 - 3.5x */ + 40, /* 1000 - 4x */ + 45, /* 1001 - 4.5x */ + 50, /* 1010 - 5x */ + 55, /* 1011 - 5.5x */ + 60, /* 1100 - 6x */ + 65, /* 1101 - 6.5x */ + 70, /* 1110 - 7x */ + 75, /* 1111 - 7.5 */ + 80, /* 10000 - 8x */ + 85, /* 10001 - 8.5x */ + 90, /* 10010 - 9x */ + 95, /* 10011 - 9.5x */ + 100, /* 10100 - 10x */ + 110, /* 10101 - 11x */ + 120, /* 10110 - 12x */ +}; + + /* ------------------------------------------------------------------------- */ /* @@ -59,9 +86,13 @@ static const int hid1_multipliers_x_10[] = { int get_clocks (void) { DECLARE_GLOBAL_DATA_PTR; - +#ifdef CONFIG_750FX + ulong clock = CFG_BUS_CLK * \ + hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; +#else ulong clock = CFG_BUS_CLK * \ hid1_multipliers_x_10[get_hid1 () >> 28] / 10; +#endif gd->cpu_clk = clock; gd->bus_clk = CFG_BUS_CLK; |