Get rid of the constant clrsetbits_le32(), instead prepare the whole content of the register once and write it at the end of the function.
Signed-off-by: Marek Vasut marex@denx.de --- drivers/ddr/altera/sdram.c | 37 ++++++++++++++++--------------------- 1 file changed, 16 insertions(+), 21 deletions(-)
diff --git a/drivers/ddr/altera/sdram.c b/drivers/ddr/altera/sdram.c index 8db8dde..f324805 100644 --- a/drivers/ddr/altera/sdram.c +++ b/drivers/ddr/altera/sdram.c @@ -417,31 +417,26 @@ static void set_sdr_fifo_cfg(void)
static void set_sdr_mp_weight(void) { - debug("Configuring MPWEIGHT_MPWEIGHT_0\n"); - clrsetbits_le32(&sdr_ctrl->mp_weight0, - SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_0_STATICWEIGHT_31_0_MASK, - CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_0_STATICWEIGHT_31_0 << + const u32 mp_weight0 = + (CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_0_STATICWEIGHT_31_0 << SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_0_STATICWEIGHT_31_0_LSB); - - clrsetbits_le32(&sdr_ctrl->mp_weight1, - SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_STATICWEIGHT_49_32_MASK, - CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_1_STATICWEIGHT_49_32 << - SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_STATICWEIGHT_49_32_LSB); - - clrsetbits_le32(&sdr_ctrl->mp_weight1, - SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_SUMOFWEIGHTS_13_0_MASK, - CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_1_SUMOFWEIGHT_13_0 << + const u32 mp_weight1 = + (CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_1_STATICWEIGHT_49_32 << + SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_STATICWEIGHT_49_32_LSB) | + (CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_1_SUMOFWEIGHT_13_0 << SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_1_SUMOFWEIGHTS_13_0_LSB); - - clrsetbits_le32(&sdr_ctrl->mp_weight2, - SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_2_SUMOFWEIGHTS_45_14_MASK, - CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_2_SUMOFWEIGHT_45_14 << + const u32 mp_weight2 = + (CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_2_SUMOFWEIGHT_45_14 << SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_2_SUMOFWEIGHTS_45_14_LSB); - - clrsetbits_le32(&sdr_ctrl->mp_weight3, - SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_3_SUMOFWEIGHTS_63_46_MASK, - CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_3_SUMOFWEIGHT_63_46 << + const u32 mp_weight3 = + (CONFIG_HPS_SDR_CTRLCFG_MPWIEIGHT_3_SUMOFWEIGHT_63_46 << SDR_CTRLGRP_MPWEIGHT_MPWEIGHT_3_SUMOFWEIGHTS_63_46_LSB); + + debug("Configuring MPWEIGHT_MPWEIGHT_0\n"); + writel(mp_weight0, &sdr_ctrl->mp_weight0); + writel(mp_weight1, &sdr_ctrl->mp_weight1); + writel(mp_weight2, &sdr_ctrl->mp_weight2); + writel(mp_weight3, &sdr_ctrl->mp_weight3); }
static void set_sdr_mp_pacing(void)