clk: tegra: Enable hardware control of SATA PLL
This makes the SATA PLL be controlled by hardware instead of software.
This is required for working SATA support.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 637b62c..f070c36 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -110,6 +110,9 @@
#define XUSBIO_PLL_CFG0_SEQ_ENABLE BIT(24)
#define XUSBIO_PLL_CFG0_SEQ_START_STATE BIT(25)
+#define SATA_PLL_CFG0 0x490
+#define SATA_PLL_CFG0_PADPLL_RESET_SWCTL BIT(0)
+
#define PLLE_MISC_PLLE_PTS BIT(8)
#define PLLE_MISC_IDDQ_SW_VALUE BIT(13)
#define PLLE_MISC_IDDQ_SW_CTRL BIT(14)
@@ -1361,6 +1364,11 @@
val |= XUSBIO_PLL_CFG0_SEQ_ENABLE;
pll_writel(val, XUSBIO_PLL_CFG0, pll);
+ /* Enable hw control of SATA pll */
+ val = pll_readl(SATA_PLL_CFG0, pll);
+ val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL;
+ pll_writel(val, SATA_PLL_CFG0, pll);
+
out:
if (pll->lock)
spin_unlock_irqrestore(pll->lock, flags);