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ddr: altera: sdram: Clean up set_sdr_mp_threshold()

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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>
This commit is contained in:
Marek Vasut 2015-08-01 20:14:11 +02:00
parent ad2ba5d607
commit 9a48a9ac6c
1 changed files with 11 additions and 13 deletions
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24
drivers/ddr/altera/sdram.c
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@ -465,23 +465,21 @@ static void set_sdr_mp_pacing(void)
static void set_sdr_mp_threshold(void)
{
debug("Configuring MPTHRESHOLDRST_MPTHRESHOLDRST_0\n");
clrsetbits_le32(&sdr_ctrl->mp_threshold0,
SDR_CTRLGRP_MPTHRESHOLDRST_0_THRESHOLDRSTCYCLES_31_0_MASK,
CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_0_THRESHOLDRSTCYCLES_31_0 <<
const u32 mp_threshold0 =
(CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_0_THRESHOLDRSTCYCLES_31_0 <<
SDR_CTRLGRP_MPTHRESHOLDRST_0_THRESHOLDRSTCYCLES_31_0_LSB);
clrsetbits_le32(&sdr_ctrl->mp_threshold1,
SDR_CTRLGRP_MPTHRESHOLDRST_1_THRESHOLDRSTCYCLES_63_32_MASK,
CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_1_THRESHOLDRSTCYCLES_63_32 <<
const u32 mp_threshold1 =
(CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_1_THRESHOLDRSTCYCLES_63_32 <<
SDR_CTRLGRP_MPTHRESHOLDRST_1_THRESHOLDRSTCYCLES_63_32_LSB);
clrsetbits_le32(&sdr_ctrl->mp_threshold2,
SDR_CTRLGRP_MPTHRESHOLDRST_2_THRESHOLDRSTCYCLES_79_64_MASK,
CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_2_THRESHOLDRSTCYCLES_79_64 <<
const u32 mp_threshold2 =
(CONFIG_HPS_SDR_CTRLCFG_MPTHRESHOLDRST_2_THRESHOLDRSTCYCLES_79_64 <<
SDR_CTRLGRP_MPTHRESHOLDRST_2_THRESHOLDRSTCYCLES_79_64_LSB);
}
debug("Configuring MPTHRESHOLDRST_MPTHRESHOLDRST_0\n");
writel(mp_threshold0, &sdr_ctrl->mp_threshold0);
writel(mp_threshold1, &sdr_ctrl->mp_threshold1);
writel(mp_threshold2, &sdr_ctrl->mp_threshold2);
}
/* Function to initialize SDRAM MMR */
unsigned sdram_mmr_init_full(unsigned int sdr_phy_reg)