Re: [PATCH 5/8] rcar-phy: correct base address
Hello. On 05-04-2013 4:43, Simon Horman wrote: 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(). Signed-off-by: Sergei Shtylyov sergei.shtyl...@cogentembedded.com As per my comment regarding patch 4, I wonder if this could be split into a driver patch and an SoC patch. Absolutely not. That'll break bisection. WBR, Sergei -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 5/8] rcar-phy: correct base address
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().
Signed-off-by: Sergei Shtylyov sergei.shtyl...@cogentembedded.com
---
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
@@ -401,7 +401,7 @@ static struct platform_device sata_devic
/* USB PHY */
static struct resource usb_phy_resources[] = {
[0] = {
- .start = 0xffe7,
+ .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 USBCTL00x0858
+/* REGS block */
+#define USBPCTRL0 0x00
+#define USBPCTRL1 0x04
+#define USBST 0x08
+#define USBEH0 0x0C
+#define USBOH0 0x1C
+#define USBCTL00x58
/* 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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Re: [PATCH 5/8] rcar-phy: correct base address
On Fri, Apr 05, 2013 at 03:05:14AM +0400, Sergei Shtylyov wrote:
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().
Signed-off-by: Sergei Shtylyov sergei.shtyl...@cogentembedded.com
As per my comment regarding patch 4, I wonder if this
could be split into a driver patch and an SoC patch.
---
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
@@ -401,7 +401,7 @@ static struct platform_device sata_devic
/* USB PHY */
static struct resource usb_phy_resources[] = {
[0] = {
- .start = 0xffe7,
+ .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 USBPCTRL00x0800
-#define USBPCTRL10x0804
-#define USBST0x0808
-#define USBEH0 0x080C
-#define USBOH0 0x081C
-#define USBCTL0 0x0858
+/* REGS block */
+#define USBPCTRL00x00
+#define USBPCTRL10x04
+#define USBST0x08
+#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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