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bcm47xx: Clean up USB patches

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SVN-Revision: 17530
This commit is contained in:
Michael Büsch 2009-09-06 19:31:14 +00:00
parent 488d168c25
commit 82f1314a35
3 changed files with 53 additions and 56 deletions
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58
target/linux/brcm47xx/patches-2.6.28/250-ohci-ssb-usb2.patch
View file

@ -1,40 +1,31 @@
--- a/drivers/usb/host/ohci-ssb.c
+++ b/drivers/usb/host/ohci-ssb.c
@@ -106,10 +106,59 @@ static int ssb_ohci_attach(struct ssb_de
---
drivers/usb/host/ohci-ssb.c | 39 ++++++++++++++++++++++++++++++++++++---
1 file changed, 36 insertions(+), 3 deletions(-)
--- linux-2.6.28.10.orig/drivers/usb/host/ohci-ssb.c
+++ linux-2.6.28.10/drivers/usb/host/ohci-ssb.c
@@ -106,10 +106,42 @@ static int ssb_ohci_attach(struct ssb_de
int err = -ENOMEM;
u32 tmp, flags = 0;
- if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)
+ /*
+ * THE FOLLOWING COMMENTS PRESERVED FROM GPL SOURCE RELEASE
+ *
+ * The USB core requires a special bit to be set during core
+ * reset to enable host (OHCI) mode. Resetting the SB core in
+ * pcibios_enable_device() is a hack for compatibility with
+ * vanilla usb-ohci so that it does not have to know about
+ * SB. A driver that wants to use the USB core in device mode
+ * should know about SB and should reset the bit back to 0
+ * after calling pcibios_enable_device().
+ */
+
+ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
+ /* Put the device into host-mode. */
flags |= SSB_OHCI_TMSLOW_HOSTMODE;
-
- ssb_device_enable(dev, flags);
+ ssb_device_enable(dev, flags);
+ }
+
+ /*
+ * USB 2.0 special considerations:
+ *
+ * 1. Since the core supports both OHCI and EHCI functions, it must
+ * only be reset once.
+ *
+ * 2. In addition to the standard SB reset sequence, the Host Control
+ * Register must be programmed to bring the USB core and various
+ * phy components out of reset.
+ */
+
+ else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+#warning FIX ME need test for core being up & exit
+ } else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+ /*
+ * USB 2.0 special considerations:
+ *
+ * 1. Since the core supports both OHCI and EHCI functions, it must
+ * only be reset once.
+ *
+ * 2. In addition to the standard SSB reset sequence, the Host Control
+ * Register must be programmed to bring the USB core and various
+ * phy components out of reset.
+ */
+ ssb_device_enable(dev, 0);
+ ssb_write32(dev, 0x200, 0x7ff);
+ udelay(1);
@ -54,15 +45,12 @@
+ tmp = ssb_read32(dev, 0x304);
+ printk("USB20H shim: 0x%0x\n", tmp);
+ }
+ }
+ else
+ } else
+ ssb_device_enable(dev, 0);
- ssb_device_enable(dev, flags);
hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
dev_name(dev->dev));
@@ -200,6 +249,7 @@ static int ssb_ohci_resume(struct ssb_de
@@ -200,6 +232,7 @@ static int ssb_ohci_resume(struct ssb_de
static const struct ssb_device_id ssb_ohci_table[] = {
SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV),
SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV),

28
target/linux/brcm47xx/patches-2.6.28/260-ohci-set-dma-mask.patch
View file

@ -1,14 +1,16 @@
--- a/drivers/usb/host/ohci-ssb.c
+++ b/drivers/usb/host/ohci-ssb.c
@@ -159,6 +159,11 @@ static int ssb_ohci_attach(struct ssb_de
else
ssb_device_enable(dev, 0);
---
drivers/usb/host/ohci-ssb.c | 3 +++
1 file changed, 3 insertions(+)
--- linux-2.6.28.10.orig/drivers/usb/host/ohci-ssb.c
+++ linux-2.6.28.10/drivers/usb/host/ohci-ssb.c
@@ -106,6 +106,9 @@ static int ssb_ohci_attach(struct ssb_de
int err = -ENOMEM;
u32 tmp, flags = 0;
+ /*
+ * Set dma mask - 32 bit mask is just an assumption
+ */
+ if (ssb_dma_set_mask(dev, DMA_32BIT_MASK))
+ return -EOPNOTSUPP;
hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
dev_name(dev->dev));
+ if (ssb_dma_set_mask(dev, DMA_32BIT_MASK))
+ return -EOPNOTSUPP;
+
if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
/* Put the device into host-mode. */
flags |= SSB_OHCI_TMSLOW_HOSTMODE;

23
target/linux/brcm47xx/patches-2.6.28/270-ehci-ssb.patch
View file

@ -1,5 +1,12 @@
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
---
drivers/usb/host/Kconfig | 13 ++
drivers/usb/host/ehci-hcd.c | 12 ++
drivers/usb/host/ehci-ssb.c | 201 ++++++++++++++++++++++++++++++++++++++++++++
drivers/usb/host/ohci-ssb.c | 23 +++++
4 files changed, 247 insertions(+), 2 deletions(-)
--- linux-2.6.28.10.orig/drivers/usb/host/Kconfig
+++ linux-2.6.28.10/drivers/usb/host/Kconfig
@@ -96,6 +96,19 @@ config USB_EHCI_HCD_PPC_OF
Enables support for the USB controller present on the PowerPC
OpenFirmware platform bus.
@ -20,8 +27,8 @@
config USB_ISP116X_HCD
tristate "ISP116X HCD support"
depends on USB
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
--- linux-2.6.28.10.orig/drivers/usb/host/ehci-hcd.c
+++ linux-2.6.28.10/drivers/usb/host/ehci-hcd.c
@@ -1036,8 +1036,16 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ixp4xx_ehci_driver
#endif
@ -42,7 +49,7 @@
#endif
--- /dev/null
+++ b/drivers/usb/host/ehci-ssb.c
+++ linux-2.6.28.10/drivers/usb/host/ehci-ssb.c
@@ -0,0 +1,201 @@
+/*
+ * Sonics Silicon Backplane
@ -245,8 +252,8 @@
+ SSB_DEVTABLE_END
+};
+MODULE_DEVICE_TABLE(ssb, ssb_ehci_table);
--- a/drivers/usb/host/ohci-ssb.c
+++ b/drivers/usb/host/ohci-ssb.c
--- linux-2.6.28.10.orig/drivers/usb/host/ohci-ssb.c
+++ linux-2.6.28.10/drivers/usb/host/ohci-ssb.c
@@ -17,6 +17,8 @@
*/
#include <linux/ssb/ssb.h>
@ -290,7 +297,7 @@
static int ssb_ohci_attach(struct ssb_device *dev)
{
struct ssb_ohci_device *ohcidev;
@@ -184,6 +199,14 @@ static int ssb_ohci_attach(struct ssb_de
@@ -165,6 +180,14 @@ static int ssb_ohci_attach(struct ssb_de
ssb_set_drvdata(dev, hcd);