The memory region that is used by the driver overlaps EHCI and OHCI register
regions for absolutely no reason now -- fix it by adding offset of 0x800 to
the base address, changing the register #define's accordingly. This has extra
positive effect that we now can use devm_ioremap_resource()...
Note that the driver and the SoC code have to be in one patch to keep the code
bisectable...
The patch has been tested on the Marzen board.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Acked-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
---
Changes since version 4:
- refreshed the patch.
Changes since version 2:
- refreshed atop of the prior patches;
- added a note about testing to the changelog;
- added ACKs from Simon Horman and Kuninori Morimoto.
Changes since the original posting:
- added a note about bisectability to the changelog.
arch/arm/mach-shmobile/setup-r8a7779.c | 2 +-
drivers/usb/phy/rcar-phy.c | 28 ++++++++++------------------
2 files changed, 11 insertions(+), 19 deletions(-)
Index: renesas/arch/arm/mach-shmobile/setup-r8a7779.c
===================================================================
--- renesas.orig/arch/arm/mach-shmobile/setup-r8a7779.c
+++ renesas/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -391,7 +391,7 @@ static struct platform_device sata_devic
/* USB PHY */
static struct resource usb_phy_resources[] = {
[0] = {
- .start = 0xffe70000,
+ .start = 0xffe70800,
.end = 0xffe70900 - 1,
.flags = IORESOURCE_MEM,
},
Index: renesas/drivers/usb/phy/rcar-phy.c
===================================================================
--- renesas.orig/drivers/usb/phy/rcar-phy.c
+++ renesas/drivers/usb/phy/rcar-phy.c
@@ -16,13 +16,13 @@
#include <linux/spinlock.h>
#include <linux/module.h>
-/* USBH common register */
-#define USBPCTRL0 0x0800
-#define USBPCTRL1 0x0804
-#define USBST 0x0808
-#define USBEH0 0x080C
-#define USBOH0 0x081C
-#define USBCTL0 0x0858
+/* REGS block */
+#define USBPCTRL0 0x00
+#define USBPCTRL1 0x04
+#define USBST 0x08
+#define USBEH0 0x0C
+#define USBOH0 0x1C
+#define USBCTL0 0x58
/* USBPCTRL1 */
#define PHY_RST (1 << 2)
@@ -139,17 +139,9 @@ static int rcar_usb_phy_probe(struct pla
return -EINVAL;
}
- /*
- * CAUTION
- *
- * Because this phy address is also mapped under OHCI/EHCI address area,
- * this driver can't use devm_request_and_ioremap(dev, res) here
- */
- reg0 = devm_ioremap_nocache(dev, res0->start, resource_size(res0));
- if (!reg0) {
- dev_err(dev, "ioremap error\n");
- return -ENOMEM;
- }
+ reg0 = devm_ioremap_resource(dev, res0);
+ if (IS_ERR(reg0))
+ return PTR_ERR(reg0);
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv) {
--
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