diff options
| author | Stefan Roese <sr@denx.de> | 2007-06-01 13:45:00 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2007-06-01 13:45:00 +0200 |
| commit | 7187db73491c8de0fb56efb5e5134ba5ec443089 (patch) | |
| tree | 54e82b89a7cd04f1a082e59fdd350922b7dd5f8c /cpu/ppc4xx | |
| parent | 19bf91f9628f80a55d4f171df71041574882b3d6 (diff) | |
ppc4xx: Update 44x_spd_ddr2 code (440SP/440SPe)
Add config option for 180 degree advance clock control as needed
for the AMCC Luan eval board.
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'cpu/ppc4xx')
| -rw-r--r-- | cpu/ppc4xx/44x_spd_ddr2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c index 2ecd3e4b61..48b9ee2f7e 100644 --- a/cpu/ppc4xx/44x_spd_ddr2.c +++ b/cpu/ppc4xx/44x_spd_ddr2.c @@ -465,7 +465,11 @@ long int initdram(int board_type) * Set the SDRAM Clock Timing Register *-----------------------------------------------------------------*/ mfsdram(SDRAM_CLKTR, val); +#ifdef CFG_44x_DDR2_CKTR_180 + mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_180_DEG_ADV); +#else mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_0_DEG); +#endif /*------------------------------------------------------------------ * Program the BxCF registers. @@ -1117,7 +1121,8 @@ static void program_codt(unsigned long *dimm_populated, modt3 = 0x00000000; } if (total_rank == 4) { - codt |= CALC_ODT_R(0) | CALC_ODT_R(1) | CALC_ODT_R(2) | CALC_ODT_R(3); + codt |= CALC_ODT_R(0) | CALC_ODT_R(1) | + CALC_ODT_R(2) | CALC_ODT_R(3); modt0 = CALC_ODT_RW(2); modt1 = 0x00000000; modt2 = CALC_ODT_RW(0); |