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ram: ast2600: Keep MPLL power on

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According to the PLL vendor, we should keep the PLL power on, so we
shouldn't toggle the power-down bit during PLL initialization.

Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Dylan Hung 2023-02-21 21:01:09 +08:00 committed by Tom Rini
parent 94d30f476f
commit 45443f6089
1 changed files with 3 additions and 3 deletions
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6
drivers/ram/aspeed/sdram_ast2600.c
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@ -1089,13 +1089,13 @@ static int ast2600_sdrammc_probe(struct udevice *dev)
}
reg = readl(&priv->scu->mpll);
reg &= ~(SCU_PLL_BYPASS | SCU_PLL_DIV_MASK |
reg &= ~(SCU_PLL_BYPASS | SCU_PLL_OFF | SCU_PLL_DIV_MASK |
SCU_PLL_DENUM_MASK | SCU_PLL_NUM_MASK);
reg |= (SCU_PLL_RST | SCU_PLL_OFF | SCU_MPLL_FREQ_CFG);
reg |= (SCU_PLL_RST | SCU_MPLL_FREQ_CFG);
writel(reg, &priv->scu->mpll);
writel(SCU_MPLL_EXT_CFG, &priv->scu->mpll_ext);
udelay(100);
reg &= ~(SCU_PLL_RST | SCU_PLL_OFF);
reg &= ~SCU_PLL_RST;
writel(reg, &priv->scu->mpll);
while ((readl(&priv->scu->mpll_ext) & BIT(31)) == 0)