leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

PCI: uniphier: Set mode register to host mode

Browse Source 
Set the mode register to host(RC) mode so that the host controller
mode is set-up consistently across SoCs.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
[lorenzo.pieralisi@arm.com: updated log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
This commit is contained in:
Kunihiko Hayashi 2019-11-07 13:58:14 +09:00 committed by Lorenzo Pieralisi
parent 54ecb8f702
commit 4b1140ade8
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/pci/controller/dwc/pcie-uniphier.c
View File

@ -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;