ddr: altera: sdram: Clean up set_sdr_mp_pacing()
authorMarek Vasut <marex@denx.de>
Sat, 1 Aug 2015 18:12:31 +0000 (20:12 +0200)
committerLothar Waßmann <LW@KARO-electronics.de>
Thu, 10 Sep 2015 06:17:35 +0000 (08:17 +0200)
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

index f324805..e41815b 100644 (file)
@@ -441,31 +441,26 @@ static void set_sdr_mp_weight(void)
 
 static void set_sdr_mp_pacing(void)
 {
-       debug("Configuring MPPACING_MPPACING_0\n");
-       clrsetbits_le32(&sdr_ctrl->mp_pacing0,
-                       SDR_CTRLGRP_MPPACING_MPPACING_0_THRESHOLD1_31_0_MASK,
-                       CONFIG_HPS_SDR_CTRLCFG_MPPACING_0_THRESHOLD1_31_0 <<
+       const u32 mp_pacing0 =
+               (CONFIG_HPS_SDR_CTRLCFG_MPPACING_0_THRESHOLD1_31_0 <<
                        SDR_CTRLGRP_MPPACING_MPPACING_0_THRESHOLD1_31_0_LSB);
-
-       clrsetbits_le32(&sdr_ctrl->mp_pacing1,
-                       SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD1_59_32_MASK,
-                       CONFIG_HPS_SDR_CTRLCFG_MPPACING_1_THRESHOLD1_59_32 <<
-                       SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD1_59_32_LSB);
-
-       clrsetbits_le32(&sdr_ctrl->mp_pacing1,
-                       SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD2_3_0_MASK,
-                       CONFIG_HPS_SDR_CTRLCFG_MPPACING_1_THRESHOLD2_3_0 <<
+       const u32 mp_pacing1 =
+               (CONFIG_HPS_SDR_CTRLCFG_MPPACING_1_THRESHOLD1_59_32 <<
+                       SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD1_59_32_LSB) |
+               (CONFIG_HPS_SDR_CTRLCFG_MPPACING_1_THRESHOLD2_3_0 <<
                        SDR_CTRLGRP_MPPACING_MPPACING_1_THRESHOLD2_3_0_LSB);
-
-       clrsetbits_le32(&sdr_ctrl->mp_pacing2,
-                       SDR_CTRLGRP_MPPACING_MPPACING_2_THRESHOLD2_35_4_MASK,
-                       CONFIG_HPS_SDR_CTRLCFG_MPPACING_2_THRESHOLD2_35_4 <<
+       const u32 mp_pacing2 =
+               (CONFIG_HPS_SDR_CTRLCFG_MPPACING_2_THRESHOLD2_35_4 <<
                        SDR_CTRLGRP_MPPACING_MPPACING_2_THRESHOLD2_35_4_LSB);
-
-       clrsetbits_le32(&sdr_ctrl->mp_pacing3,
-                       SDR_CTRLGRP_MPPACING_MPPACING_3_THRESHOLD2_59_36_MASK,
-                       CONFIG_HPS_SDR_CTRLCFG_MPPACING_3_THRESHOLD2_59_36 <<
+       const u32 mp_pacing3 =
+               (CONFIG_HPS_SDR_CTRLCFG_MPPACING_3_THRESHOLD2_59_36 <<
                        SDR_CTRLGRP_MPPACING_MPPACING_3_THRESHOLD2_59_36_LSB);
+
+       debug("Configuring MPPACING_MPPACING_0\n");
+       writel(mp_pacing0, &sdr_ctrl->mp_pacing0);
+       writel(mp_pacing1, &sdr_ctrl->mp_pacing1);
+       writel(mp_pacing2, &sdr_ctrl->mp_pacing2);
+       writel(mp_pacing3, &sdr_ctrl->mp_pacing3);
 }
 
 static void set_sdr_mp_threshold(void)