ram: ast2600: Keep MPLL power on
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>
diff --git a/drivers/ram/aspeed/sdram_ast2600.c b/drivers/ram/aspeed/sdram_ast2600.c
index 1876755..d463933 100644
--- a/drivers/ram/aspeed/sdram_ast2600.c
+++ b/drivers/ram/aspeed/sdram_ast2600.c
@@ -1089,13 +1089,13 @@
}
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)