[U-Boot] [PATCH 09/28] ddr: altera: sdram: Clean up set_sdr_mp_weight()
Marek Vasut
marex at denx.de
Sat Aug 1 23:34:38 CEST 2015
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 at 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)
--
2.1.4
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