[ARM] Orion: add the option to support different ehci phy initialization
The Orion ehci driver serves the Orion, kirkwood and DD Soc families.
Since each of those integrate a different USB phy we should have the
ability to use few initialization sequences or to leave the boot loader
phy settings as is.
Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 0bb1fbd..b5c684d 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -57,6 +57,7 @@
****************************************************************************/
static struct orion_ehci_data kirkwood_ehci_data = {
.dram = &kirkwood_mbus_dram_info,
+ .phy_version = EHCI_PHY_NA,
};
static u64 ehci_dmamask = 0xffffffffUL;
diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c
index 238a2f8..b0e4e0d 100644
--- a/arch/arm/mach-mv78xx0/common.c
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -167,6 +167,7 @@
****************************************************************************/
static struct orion_ehci_data mv78xx0_ehci_data = {
.dram = &mv78xx0_mbus_dram_info,
+ .phy_version = EHCI_PHY_NA,
};
static u64 ehci_dmamask = 0xffffffffUL;
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 437065c..0a62337 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -72,6 +72,7 @@
****************************************************************************/
static struct orion_ehci_data orion5x_ehci_data = {
.dram = &orion5x_mbus_dram_info,
+ .phy_version = EHCI_PHY_ORION,
};
static u64 ehci_dmamask = 0xffffffffUL;
diff --git a/arch/arm/plat-orion/include/plat/ehci-orion.h b/arch/arm/plat-orion/include/plat/ehci-orion.h
index 6434305..4ec668e 100644
--- a/arch/arm/plat-orion/include/plat/ehci-orion.h
+++ b/arch/arm/plat-orion/include/plat/ehci-orion.h
@@ -11,8 +11,16 @@
#include <linux/mbus.h>
+enum orion_ehci_phy_ver {
+ EHCI_PHY_ORION,
+ EHCI_PHY_DD,
+ EHCI_PHY_KW,
+ EHCI_PHY_NA,
+};
+
struct orion_ehci_data {
struct mbus_dram_target_info *dram;
+ enum orion_ehci_phy_ver phy_version;
};
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 5416cf9..9d48790 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -33,8 +33,9 @@
/*
* Implement Orion USB controller specification guidelines
*/
-static void orion_usb_setup(struct usb_hcd *hcd)
+static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
{
+ /* The below GLs are according to the Orion Errata document */
/*
* Clear interrupt cause and mask
*/
@@ -258,9 +259,19 @@
ehci_orion_conf_mbus_windows(hcd, pd->dram);
/*
- * setup Orion USB controller
+ * setup Orion USB controller.
*/
- orion_usb_setup(hcd);
+ switch (pd->phy_version) {
+ case EHCI_PHY_NA: /* dont change USB phy settings */
+ break;
+ case EHCI_PHY_ORION:
+ orion_usb_phy_v1_setup(hcd);
+ break;
+ case EHCI_PHY_DD:
+ case EHCI_PHY_KW:
+ default:
+ printk(KERN_WARNING "Orion ehci -USB phy version isn't supported.\n");
+ }
err = usb_add_hcd(hcd, irq, IRQF_SHARED | IRQF_DISABLED);
if (err)
