| Message ID | 1573102695-7018-1-git-send-email-hayashi.kunihiko@socionext.com |
|---|---|
| State | Accepted |
| Commit | 4b1140ade8f5c1ced640286cce79371ade2bd2d1 |
| Headers | show |
| Series | [1/2] PCI: uniphier: Set mode register to host mode | expand |
On Thu, Nov 07, 2019 at 01:58:14PM +0900, Kunihiko Hayashi wrote: > In order to avoid effect of the initial mode depending on SoCs, > this patch sets the mode register to host(RC) mode. > > Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> > --- > drivers/pci/controller/dwc/pcie-uniphier.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c > index 3f30ee4..8fd7bad 100644 > --- a/drivers/pci/controller/dwc/pcie-uniphier.c > +++ b/drivers/pci/controller/dwc/pcie-uniphier.c > @@ -33,6 +33,10 @@ > #define PCL_PIPEMON 0x0044 > #define PCL_PCLK_ALIVE BIT(15) > > +#define PCL_MODE 0x8000 > +#define PCL_MODE_REGEN BIT(8) > +#define PCL_MODE_REGVAL BIT(0) > + > #define PCL_APP_READY_CTRL 0x8008 > #define PCL_APP_LTSSM_ENABLE BIT(0) > > @@ -85,6 +89,12 @@ static void uniphier_pcie_init_rc(struct uniphier_pcie_priv *priv) > { > u32 val; > > + /* set RC MODE */ > + val = readl(priv->base + PCL_MODE); > + val |= PCL_MODE_REGEN; > + val &= ~PCL_MODE_REGVAL; > + writel(val, priv->base + PCL_MODE); > + Reviewed-by: Andrew Murray <andrew.murray@arm.com> > /* use auxiliary power detection */ > val = readl(priv->base + PCL_APP_PM0); > val |= PCL_SYS_AUX_PWR_DET; > -- > 2.7.4 >
On Thu, Nov 07, 2019 at 01:58:14PM +0900, Kunihiko Hayashi wrote: > In order to avoid effect of the initial mode depending on SoCs, > this patch sets the mode register to host(RC) mode. > > Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> > --- > drivers/pci/controller/dwc/pcie-uniphier.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) Applied to pci/uniphier, thanks. Lorenzo > diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c > index 3f30ee4..8fd7bad 100644 > --- a/drivers/pci/controller/dwc/pcie-uniphier.c > +++ b/drivers/pci/controller/dwc/pcie-uniphier.c > @@ -33,6 +33,10 @@ > #define PCL_PIPEMON 0x0044 > #define PCL_PCLK_ALIVE BIT(15) > > +#define PCL_MODE 0x8000 > +#define PCL_MODE_REGEN BIT(8) > +#define PCL_MODE_REGVAL BIT(0) > + > #define PCL_APP_READY_CTRL 0x8008 > #define PCL_APP_LTSSM_ENABLE BIT(0) > > @@ -85,6 +89,12 @@ static void uniphier_pcie_init_rc(struct uniphier_pcie_priv *priv) > { > u32 val; > > + /* set RC MODE */ > + val = readl(priv->base + PCL_MODE); > + val |= PCL_MODE_REGEN; > + val &= ~PCL_MODE_REGVAL; > + writel(val, priv->base + PCL_MODE); > + > /* use auxiliary power detection */ > val = readl(priv->base + PCL_APP_PM0); > val |= PCL_SYS_AUX_PWR_DET; > -- > 2.7.4 >
diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c index 3f30ee4..8fd7bad 100644 --- a/drivers/pci/controller/dwc/pcie-uniphier.c +++ b/drivers/pci/controller/dwc/pcie-uniphier.c @@ -33,6 +33,10 @@ #define PCL_PIPEMON 0x0044 #define PCL_PCLK_ALIVE BIT(15) +#define PCL_MODE 0x8000 +#define PCL_MODE_REGEN BIT(8) +#define PCL_MODE_REGVAL BIT(0) + #define PCL_APP_READY_CTRL 0x8008 #define PCL_APP_LTSSM_ENABLE BIT(0) @@ -85,6 +89,12 @@ static void uniphier_pcie_init_rc(struct uniphier_pcie_priv *priv) { u32 val; + /* set RC MODE */ + val = readl(priv->base + PCL_MODE); + val |= PCL_MODE_REGEN; + val &= ~PCL_MODE_REGVAL; + writel(val, priv->base + PCL_MODE); + /* use auxiliary power detection */ val = readl(priv->base + PCL_APP_PM0); val |= PCL_SYS_AUX_PWR_DET;
In order to avoid effect of the initial mode depending on SoCs, this patch sets the mode register to host(RC) mode. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/pci/controller/dwc/pcie-uniphier.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.7.4