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brcm47xx: add new usb driver for bcma bus and replace ssb usb driver.

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This new usb driver uses an extra device so the ehci and the ohci driver are not depending on ech other any more.

SVN-Revision: 29575
This commit is contained in:
Hauke Mehrtens 2011-12-19 23:39:13 +00:00
parent 1aa5a61754
commit 5b8686c303
11 changed files with 1787 additions and 521 deletions
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19
package/kernel/modules/usb.mk
View file

@ -88,6 +88,7 @@ $(eval $(call KernelPackage,usb-uhci,1))
define KernelPackage/usb-ohci
TITLE:=Support for OHCI controllers
DEPENDS:=+TARGET_brcm47xx:kmod-usb-brcm47xx
KCONFIG:= \
CONFIG_USB_OHCI \
CONFIG_USB_OHCI_HCD \
@ -199,6 +200,7 @@ $(eval $(call KernelPackage,usb-isp116x-hcd))
define KernelPackage/usb2
TITLE:=Support for USB2 controllers
DEPENDS:=+TARGET_brcm47xx:kmod-usb-brcm47xx
KCONFIG:=CONFIG_USB_EHCI_HCD \
CONFIG_USB_EHCI_AR71XX=y \
CONFIG_USB_OCTEON_EHCI=y \
@ -983,3 +985,20 @@ define KernelPackage/usb-rt305x-dwc_otg/description
endef
$(eval $(call KernelPackage,usb-rt305x-dwc_otg))
define KernelPackage/usb-brcm47xx
SUBMENU:=$(USB_MENU)
TITLE:=Support for USB on bcm47xx
DEPENDS:=@USB_SUPPORT @TARGET_brcm47xx
KCONFIG:= \
CONFIG_USB_HCD_BCMA \
CONFIG_USB_HCD_SSB
FILES:= \
$(LINUX_DIR)/drivers/usb/host/bcma-hcd.ko \
$(LINUX_DIR)/drivers/usb/host/ssb-hcd.ko
AUTOLOAD:=$(call AutoLoad,19,bcma-hcd ssb-hcd,1)
$(call AddDepends/usb)
endef
$(eval $(call KernelPackage,usb-brcm47xx))

60
target/linux/brcm47xx/patches-3.0/0028-bcma-scan-for-extra-address-space.patch Normal file
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@ -0,0 +1,60 @@
From 1735daf1db79d338dccfc55444b52ed52af79e86 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 20 Nov 2011 18:22:35 +0100
Subject: [PATCH 15/21] bcma: scan for extra address space
Some cores like the USB core have two address spaces. In the USB host
controller one address space is used for the OHCI and the other for the
EHCI controller interface. The USB controller is the only core I found
with two address spaces. This code is based on the AI scan function
ai_scan() in shared/aiutils.c i the Broadcom SDK.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/bcma/scan.c | 17 ++++++++++++++++-
include/linux/bcma/bcma.h | 1 +
2 files changed, 17 insertions(+), 1 deletions(-)
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -286,6 +286,21 @@ static int bcma_get_next_core(struct bcm
return -EILSEQ;
}
+
+ /* First Slave Address Descriptor should be port 0:
+ * the main register space for the core
+ */
+ tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, 0);
+ if (tmp < 0) {
+ /* Try again to see if it is a bridge */
+ tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_BRIDGE, 0);
+ if (tmp) {
+ printk("found bridge\n");
+ }
+
+ }
+ core->addr = tmp;
+
/* get & parse slave ports */
for (i = 0; i < ports[1]; i++) {
for (j = 0; ; j++) {
@@ -298,7 +313,7 @@ static int bcma_get_next_core(struct bcm
break;
} else {
if (i == 0 && j == 0)
- core->addr = tmp;
+ core->addr1 = tmp;
}
}
}
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -138,6 +138,7 @@ struct bcma_device {
u8 core_index;
u32 addr;
+ u32 addr1;
u32 wrap;
void __iomem *io_addr;

115
target/linux/brcm47xx/patches-3.0/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch Normal file
View file

@ -0,0 +1,115 @@
From 6e8ae6e2cee0e7e5939dc7042584c808366e61e0 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 27 Nov 2011 14:01:01 +0100
Subject: [PATCH 16/21] =?UTF-8?q?bcma:=20add=20function=20to=20check=20every?=
=?UTF-8?q?=2010=20=C2=B5s=20if=20a=20reg=20is=20set?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This function checks if a reg get set or cleared every 10 microseconds.
It is used in bcma_core_set_clockmode() and bcma_core_pll_ctl() to
reduce code duplication. In addition it is needed in the USB host
driver.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/bcma/core.c | 48 ++++++++++++++++++++++++++++----------------
include/linux/bcma/bcma.h | 2 +
2 files changed, 32 insertions(+), 18 deletions(-)
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -51,11 +51,36 @@ int bcma_core_enable(struct bcma_device
}
EXPORT_SYMBOL_GPL(bcma_core_enable);
+/* Wait for bitmask in a register to get set or cleared.
+ * timeout is in units of ten-microseconds.
+ */
+int bcma_wait_bits(struct bcma_device *dev, u16 reg, u32 bitmask, int timeout,
+ int set)
+{
+ int i;
+ u32 val;
+
+ for (i = 0; i < timeout; i++) {
+ val = bcma_read32(dev, reg);
+ if (set) {
+ if ((val & bitmask) == bitmask)
+ return 0;
+ } else {
+ if (!(val & bitmask))
+ return 0;
+ }
+ udelay(10);
+ }
+ pr_err("Timeout waiting for bitmask %08X on register %04X to %s.\n",
+ bitmask, reg, (set ? "set" : "clear"));
+
+ return -ETIMEDOUT;
+}
+EXPORT_SYMBOL_GPL(bcma_wait_bits);
+
void bcma_core_set_clockmode(struct bcma_device *core,
enum bcma_clkmode clkmode)
{
- u16 i;
-
WARN_ON(core->id.id != BCMA_CORE_CHIPCOMMON &&
core->id.id != BCMA_CORE_PCIE &&
core->id.id != BCMA_CORE_80211);
@@ -64,15 +89,8 @@ void bcma_core_set_clockmode(struct bcma
case BCMA_CLKMODE_FAST:
bcma_set32(core, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
udelay(64);
- for (i = 0; i < 1500; i++) {
- if (bcma_read32(core, BCMA_CLKCTLST) &
- BCMA_CLKCTLST_HAVEHT) {
- i = 0;
- break;
- }
- udelay(10);
- }
- if (i)
+ if (bcma_wait_bits(core, BCMA_CLKCTLST, BCMA_CLKCTLST_HAVEHT,
+ 1500, 1))
pr_err("HT force timeout\n");
break;
case BCMA_CLKMODE_DYNAMIC:
@@ -84,22 +102,12 @@ EXPORT_SYMBOL_GPL(bcma_core_set_clockmod
void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on)
{
- u16 i;
-
WARN_ON(req & ~BCMA_CLKCTLST_EXTRESREQ);
WARN_ON(status & ~BCMA_CLKCTLST_EXTRESST);
if (on) {
bcma_set32(core, BCMA_CLKCTLST, req);
- for (i = 0; i < 10000; i++) {
- if ((bcma_read32(core, BCMA_CLKCTLST) & status) ==
- status) {
- i = 0;
- break;
- }
- udelay(10);
- }
- if (i)
+ if (bcma_wait_bits(core, BCMA_CLKCTLST, status, 10000, 1))
pr_err("PLL enable timeout\n");
} else {
pr_warn("Disabling PLL not supported yet!\n");
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -283,6 +283,9 @@ static inline void bcma_maskset16(struct
bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set);
}
+extern int bcma_wait_bits(struct bcma_device *dev, u16 reg, u32 bitmask,
+ int timeout, int set);
+
extern bool bcma_core_is_enabled(struct bcma_device *core);
extern void bcma_core_disable(struct bcma_device *core, u32 flags);
extern int bcma_core_enable(struct bcma_device *core, u32 flags);

291
target/linux/brcm47xx/patches-3.0/0030-USB-OHCI-Add-a-generic-platform-device-driver.patch Normal file
View file

@ -0,0 +1,291 @@
From b39adeae5b06e40699c174ed78ca7c45b8d7976f Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:20:54 +0100
Subject: [PATCH 17/21] USB: OHCI: Add a generic platform device driver
This adds a generic driver for platform devices. It works like the PCI
driver and is based on it. This is for devices which do not have an own
bus but their OHCI controller works like a PCI controller. It will be
used for the Broadcom bcma and ssb USB OHCI controller.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/usb/host/Kconfig | 10 ++
drivers/usb/host/ohci-hcd.c | 21 ++++-
drivers/usb/host/ohci-platform.c | 197 ++++++++++++++++++++++++++++++++++++++
3 files changed, 227 insertions(+), 1 deletions(-)
create mode 100644 drivers/usb/host/ohci-platform.c
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -378,6 +378,16 @@ config USB_CNS3XXX_OHCI
Enable support for the CNS3XXX SOC's on-chip OHCI controller.
It is needed for low-speed USB 1.0 device support.
+config USB_OHCI_HCD_PLATFORM
+ bool "OHCI driver for a platform device"
+ depends on USB_OHCI_HCD && EXPERIMENTAL
+ default n
+ ---help---
+ Adds an OHCI host driver for a generic platform device, which
+ provieds a memory space and an irq.
+
+ If unsure, say N.
+
config USB_OHCI_BIG_ENDIAN_DESC
bool
depends on USB_OHCI_HCD
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1114,6 +1114,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_hcd_ath79_driver
#endif
+#ifdef CONFIG_USB_OHCI_HCD_PLATFORM
+#include "ohci-platform.c"
+#define PLATFORM_OHCI_DRIVER ohci_platform_driver
+#endif
+
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
!defined(OMAP1_PLATFORM_DRIVER) && \
@@ -1123,7 +1128,8 @@ MODULE_LICENSE ("GPL");
!defined(PS3_SYSTEM_BUS_DRIVER) && \
!defined(SM501_OHCI_DRIVER) && \
!defined(TMIO_OHCI_DRIVER) && \
- !defined(SSB_OHCI_DRIVER)
+ !defined(SSB_OHCI_DRIVER) && \
+ !defined(PLATFORM_OHCI_DRIVER)
#error "missing bus glue for ohci-hcd"
#endif
@@ -1207,9 +1213,19 @@ static int __init ohci_hcd_mod_init(void
goto error_tmio;
#endif
+#ifdef PLATFORM_OHCI_DRIVER
+ retval = platform_driver_register(&PLATFORM_OHCI_DRIVER);
+ if (retval)
+ goto error_platform;
+#endif
+
return retval;
/* Error path */
+#ifdef PLATFORM_OHCI_DRIVER
+ platform_driver_unregister(&PLATFORM_OHCI_DRIVER);
+ error_platform:
+#endif
#ifdef TMIO_OHCI_DRIVER
platform_driver_unregister(&TMIO_OHCI_DRIVER);
error_tmio:
@@ -1263,6 +1279,9 @@ module_init(ohci_hcd_mod_init);
static void __exit ohci_hcd_mod_exit(void)
{
+#ifdef PLATFORM_OHCI_DRIVER
+ platform_driver_unregister(&PLATFORM_OHCI_DRIVER);
+#endif
#ifdef TMIO_OHCI_DRIVER
platform_driver_unregister(&TMIO_OHCI_DRIVER);
#endif
--- /dev/null
+++ b/drivers/usb/host/ohci-platform.c
@@ -0,0 +1,197 @@
+/*
+ * Generic platform ohci driver
+ *
+ * Copyright 2007 Michael Buesch <m@bues.ch>
+ * Copyright 2011 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Derived from the OHCI-PCI driver
+ * Copyright 1999 Roman Weissgaerber
+ * Copyright 2000-2002 David Brownell
+ * Copyright 1999 Linus Torvalds
+ * Copyright 1999 Gregory P. Smith
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+#include <linux/platform_device.h>
+
+static int ohci_platform_reset(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int err;
+
+ ohci_hcd_init(ohci);
+ err = ohci_init(ohci);
+
+ return err;
+}
+
+static int ohci_platform_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int err;
+
+ err = ohci_run(ohci);
+ if (err < 0) {
+ ohci_err(ohci, "can't start\n");
+ ohci_stop(hcd);
+ }
+
+ return err;
+}
+
+static const struct hc_driver ohci_platform_hc_driver = {
+ .description = "platform-usb-ohci",
+ .product_desc = "Generic Platform OHCI Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ .irq = ohci_irq,
+ .flags = HCD_MEMORY | HCD_USB11,
+
+ .reset = ohci_platform_reset,
+ .start = ohci_platform_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+
+ .get_frame_number = ohci_get_frame,
+
+ .hub_status_data = ohci_hub_status_data,
+ .hub_control = ohci_hub_control,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+
+ .start_port_reset = ohci_start_port_reset,
+};
+
+static int ohci_platform_attach(struct platform_device *dev)
+{
+ struct usb_hcd *hcd;
+ struct resource *res_irq, *res_mem;
+ int err = -ENOMEM;
+
+ hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
+ dev_name(&dev->dev));
+ if (!hcd)
+ goto err_return;
+
+ res_irq = platform_get_resource(dev, IORESOURCE_IRQ, 0);
+ if (!res_irq) {
+ err = -ENXIO;
+ goto err_return;
+ }
+ res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res_mem) {
+ err = -ENXIO;
+ goto err_return;
+ }
+ hcd->rsrc_start = res_mem->start;
+ hcd->rsrc_len = res_mem->end - res_mem->start + 1;
+
+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs)
+ goto err_put_hcd;
+ err = usb_add_hcd(hcd, res_irq->start, IRQF_SHARED);
+ if (err)
+ goto err_iounmap;
+
+ platform_set_drvdata(dev, hcd);
+
+ return err;
+
+err_iounmap:
+ iounmap(hcd->regs);
+err_put_hcd:
+ usb_put_hcd(hcd);
+err_return:
+ return err;
+}
+
+static int ohci_platform_probe(struct platform_device *dev)
+{
+ int err;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ /* We currently always attach BCMA_DEV_USB11_HOSTDEV
+ * as HOST OHCI. If we want to attach it as Client device,
+ * we must branch here and call into the (yet to
+ * be written) Client mode driver. Same for remove(). */
+
+ err = ohci_platform_attach(dev);
+
+ return err;
+}
+
+static int ohci_platform_remove(struct platform_device *dev)
+{
+ struct usb_hcd *hcd;
+
+ hcd = platform_get_drvdata(dev);
+ if (!hcd)
+ return -ENODEV;
+
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+
+ return 0;
+}
+
+static void ohci_platform_shutdown(struct platform_device *dev)
+{
+ struct usb_hcd *hcd;
+
+ hcd = platform_get_drvdata(dev);
+ if (!hcd)
+ return;
+
+ if (hcd->driver->shutdown)
+ hcd->driver->shutdown(hcd);
+}
+
+#ifdef CONFIG_PM
+
+static int ohci_platform_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+
+ return 0;
+}
+
+static int ohci_platform_resume(struct platform_device *dev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+
+ ohci_finish_controller_resume(hcd);
+ return 0;
+}
+
+#else /* !CONFIG_PM */
+#define ohci_platform_suspend NULL
+#define ohci_platform_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct platform_device_id ohci_platform_table[] = {
+ { "ohci-platform", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, ohci_platform_table);
+
+static struct platform_driver ohci_platform_driver = {
+ .id_table = ohci_platform_table,
+ .probe = ohci_platform_probe,
+ .remove = ohci_platform_remove,
+ .shutdown = ohci_platform_shutdown,
+ .suspend = ohci_platform_suspend,
+ .resume = ohci_platform_resume,
+ .driver = {
+ .name = "ohci-platform",
+ }
+};

265
target/linux/brcm47xx/patches-3.0/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch Normal file
View file

@ -0,0 +1,265 @@
From aa05e0048cec25719921291e8749674b8cc66fc0 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:28:56 +0100
Subject: [PATCH 18/21] USB: EHCI: Add a generic platform device driver
This adds a generic driver for platform devices. It works like the PCI
driver and is based on it. This is for devices which do not have an own
bus but their EHCI controller works like a PCI controller. It will be
used for the Broadcom bcma and ssb USB EHCI controller.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/usb/host/Kconfig | 10 ++
drivers/usb/host/ehci-hcd.c | 5 +
drivers/usb/host/ehci-platform.c | 211 ++++++++++++++++++++++++++++++++++++++
3 files changed, 226 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/ehci-platform.c
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -388,6 +388,16 @@ config USB_OHCI_HCD_PLATFORM
If unsure, say N.
+config USB_EHCI_HCD_PLATFORM
+ bool "Generic EHCI driver for a platform device"
+ depends on USB_EHCI_HCD && EXPERIMENTAL
+ default n
+ ---help---
+ Adds an EHCI host driver for a generic platform device, which
+ provieds a memory space and an irq.
+
+ If unsure, say N.
+
config USB_OHCI_BIG_ENDIAN_DESC
bool
depends on USB_OHCI_HCD
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1312,6 +1312,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_grlib_driver
#endif
+#ifdef CONFIG_USB_EHCI_HCD_PLATFORM
+#include "ehci-platform.c"
+#define PLATFORM_DRIVER ehci_platform_driver
+#endif
+
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER)
--- /dev/null
+++ b/drivers/usb/host/ehci-platform.c
@@ -0,0 +1,211 @@
+/*
+ * Generic platform ehci driver
+ *
+ * Copyright 2007 Steven Brown <sbrown@cortland.com>
+ * Copyright 2010-2011 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Derived from the ohci-ssb driver
+ * Copyright 2007 Michael Buesch <mb@bu3sch.de>
+ *
+ * Derived from the EHCI-PCI driver
+ * Copyright (c) 2000-2004 by David Brownell
+ *
+ * Derived from the ohci-pci driver
+ * Copyright 1999 Roman Weissgaerber
+ * Copyright 2000-2002 David Brownell
+ * Copyright 1999 Linus Torvalds
+ * Copyright 1999 Gregory P. Smith
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+#include <linux/platform_device.h>
+
+static int ehci_platform_reset(struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ int retval;
+
+ ehci->caps = hcd->regs;
+ ehci->regs = hcd->regs +
+ HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
+
+ dbg_hcs_params(ehci, "reset");
+ dbg_hcc_params(ehci, "reset");
+
+ /* cache this readonly data; minimize chip reads */
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+ retval = ehci_halt(ehci);
+ if (retval)
+ return retval;
+
+ /* data structure init */
+ retval = ehci_init(hcd);
+ if (retval)
+ return retval;
+
+ ehci_reset(ehci);
+
+ ehci_port_power(ehci, 1);
+
+ return retval;
+}
+
+static const struct hc_driver ehci_platform_hc_driver = {
+ .description = "platform-usb-ehci",
+ .product_desc = "Generic Platform EHCI Controller",
+ .hcd_priv_size = sizeof(struct ehci_hcd),
+
+ .irq = ehci_irq,
+ .flags = HCD_MEMORY | HCD_USB2,
+
+ .reset = ehci_platform_reset,
+ .start = ehci_run,
+ .stop = ehci_stop,
+ .shutdown = ehci_shutdown,
+
+ .urb_enqueue = ehci_urb_enqueue,
+ .urb_dequeue = ehci_urb_dequeue,
+ .endpoint_disable = ehci_endpoint_disable,
+ .endpoint_reset = ehci_endpoint_reset,
+
+ .get_frame_number = ehci_get_frame,
+
+ .hub_status_data = ehci_hub_status_data,
+ .hub_control = ehci_hub_control,
+#if defined(CONFIG_PM)
+ .bus_suspend = ehci_bus_suspend,
+ .bus_resume = ehci_bus_resume,
+#endif
+ .relinquish_port = ehci_relinquish_port,
+ .port_handed_over = ehci_port_handed_over,
+
+ .update_device = ehci_update_device,
+
+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+};
+
+static int ehci_platform_attach(struct platform_device *dev)
+{
+ struct usb_hcd *hcd;
+ struct resource *res_irq, *res_mem;
+ int err = -ENOMEM;
+
+ hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev,
+ dev_name(&dev->dev));
+ if (!hcd)
+ goto err_return;
+
+ res_irq = platform_get_resource(dev, IORESOURCE_IRQ, 0);
+ if (!res_irq) {
+ err = -ENXIO;
+ goto err_return;
+ }
+ res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res_mem) {
+ err = -ENXIO;
+ goto err_return;
+ }
+ hcd->rsrc_start = res_mem->start;
+ hcd->rsrc_len = res_mem->end - res_mem->start + 1;
+
+ /*
+ * start & size modified per sbutils.c
+ */
+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs)
+ goto err_put_hcd;
+ err = usb_add_hcd(hcd, res_irq->start, IRQF_SHARED);
+ if (err)
+ goto err_iounmap;
+
+ platform_set_drvdata(dev, hcd);
+
+ return err;
+
+err_iounmap:
+ iounmap(hcd->regs);
+err_put_hcd:
+ usb_put_hcd(hcd);
+err_return:
+ return err;
+}
+
+static int ehci_platform_probe(struct platform_device *dev)
+{
+ int err;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ err = ehci_platform_attach(dev);
+
+ return err;
+}
+
+static int ehci_platform_remove(struct platform_device *dev)
+{
+ struct usb_hcd *hcd;
+
+ hcd = platform_get_drvdata(dev);
+ if (!hcd)
+ return -ENODEV;
+
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+
+ return 0;
+}
+
+static void ehci_platform_shutdown(struct platform_device *dev)
+{
+ struct usb_hcd *hcd;
+
+ hcd = platform_get_drvdata(dev);
+ if (!hcd)
+ return;
+
+ if (hcd->driver->shutdown)
+ hcd->driver->shutdown(hcd);
+}
+
+#ifdef CONFIG_PM
+
+static int ehci_platform_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+ return 0;
+}
+
+static int ehci_platform_resume(struct platform_device *dev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+
+ ehci_finish_controller_resume(hcd);
+ return 0;
+}
+
+#else /* !CONFIG_PM */
+#define ehci_platform_suspend NULL
+#define ehci_platform_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct platform_device_id ehci_platform_table[] = {
+ { "ehci-platform", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, ehci_platform_table);
+
+static struct platform_driver ehci_platform_driver = {
+ .id_table = ehci_platform_table,
+ .probe = ehci_platform_probe,
+ .remove = ehci_platform_remove,
+ .shutdown = ehci_platform_shutdown,
+ .suspend = ehci_platform_suspend,
+ .resume = ehci_platform_resume,
+ .driver = {
+ .name = "ehci-platform",
+ }
+};

347
target/linux/brcm47xx/patches-3.0/0032-USB-Add-driver-for-the-bcma-bus.patch Normal file
View file

@ -0,0 +1,347 @@
From 7151c34627b938486008cfab25bfb4e4f730a021 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:33:41 +0100
Subject: [PATCH 19/21] USB: Add driver for the bcma bus
This adds a USB driver using the generic platform device driver for the
USB controller found on the Broadcom bcma bus. The bcma bus just
exposes one device which serves the OHCI and the EHCI controller at the
same time. This driver probes for this USB controller and creates and
registers two new platform devices which will be probed by the new
generic platform device driver. This makes it possible to use the EHCI
and the OCHI controller on the bcma bus at the same time.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/usb/host/Kconfig | 12 ++
drivers/usb/host/Makefile | 1 +
drivers/usb/host/bcma-hcd.c | 350 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 363 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/bcma-hcd.c
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -598,3 +598,15 @@ config USB_OCTEON_OHCI
config USB_OCTEON2_COMMON
bool
default y if USB_OCTEON_EHCI || USB_OCTEON_OHCI
+
+config USB_HCD_BCMA
+ tristate "BCMA usb host driver"
+ depends on BCMA && EXPERIMENTAL
+ select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
+ select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
+ help
+ Enbale support for the EHCI and OCHI host controller on an bcma bus.
+ It converts the bcma driver into two platform device drivers
+ for ehci and ohci.
+
+ If unsure, say N.
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -35,3 +35,4 @@ obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o
obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o
obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-mph-dr-of.o
obj-$(CONFIG_USB_OCTEON2_COMMON) += octeon2-common.o
+obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o
--- /dev/null
+++ b/drivers/usb/host/bcma-hcd.c
@@ -0,0 +1,298 @@
+/*
+ * Broadcom specific Advanced Microcontroller Bus
+ * Broadcom USB-core driver (BCMA bus glue)
+ *
+ * Copyright 2011 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Based on ssb-ohci driver
+ * Copyright 2007 Michael Buesch <m@bues.ch>
+ *
+ * Derived from the OHCI-PCI driver
+ * Copyright 1999 Roman Weissgaerber
+ * Copyright 2000-2002 David Brownell
+ * Copyright 1999 Linus Torvalds
+ * Copyright 1999 Gregory P. Smith
+ *
+ * Derived from the USBcore related parts of Broadcom-SB
+ * Copyright 2005-2011 Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+#include <linux/bcma/bcma.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Hauke Mehrtens");
+MODULE_DESCRIPTION("Common USB driver for BCMA Bus");
+MODULE_LICENSE("GPL");
+
+#define BCMA_CORE_SIZE 0x1000
+
+struct bcma_hcd_device {
+ struct platform_device *ehci_dev;
+ struct platform_device *ohci_dev;
+};
+
+/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
+static void bcma_hcd_init_chip(struct bcma_device *dev)
+{
+ u32 tmp;
+
+ /*
+ * 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 SI reset sequence, the Host Control
+ * Register must be programmed to bring the USB core and various
+ * phy components out of reset.
+ */
+ if (!bcma_core_is_enabled(dev)) {
+ bcma_core_enable(dev, 0);
+ mdelay(10);
+ if (dev->id.rev >= 5) {
+ /* Enable Misc PLL */
+ tmp = bcma_read32(dev, 0x1e0);
+ tmp |= 0x100;
+ bcma_write32(dev, 0x1e0, tmp);
+ if (bcma_wait_bits(dev, 0x1e0, 1 << 24, 100, 0))
+ printk(KERN_EMERG "Failed to enable misc PPL!\n");
+
+ /* Take out of resets */
+ bcma_write32(dev, 0x200, 0x4ff);
+ udelay(25);
+ bcma_write32(dev, 0x200, 0x6ff);
+ udelay(25);
+
+ /* Make sure digital and AFE are locked in USB PHY */
+ bcma_write32(dev, 0x524, 0x6b);
+ udelay(50);
+ tmp = bcma_read32(dev, 0x524);
+ udelay(50);
+ bcma_write32(dev, 0x524, 0xab);
+ udelay(50);
+ tmp = bcma_read32(dev, 0x524);
+ udelay(50);
+ bcma_write32(dev, 0x524, 0x2b);
+ udelay(50);
+ tmp = bcma_read32(dev, 0x524);
+ udelay(50);
+ bcma_write32(dev, 0x524, 0x10ab);
+ udelay(50);
+ tmp = bcma_read32(dev, 0x524);
+
+ if (bcma_wait_bits(dev, 0x528, 0xc000, 10000, 1))
+ printk(KERN_EMERG
+ "USB20H mdio_rddata 0x%08x\n", tmp);
+
+ bcma_write32(dev, 0x528, 0x80000000);
+ tmp = bcma_read32(dev, 0x314);
+ udelay(265);
+ bcma_write32(dev, 0x200, 0x7ff);
+ udelay(10);
+
+ /* Take USB and HSIC out of non-driving modes */
+ bcma_write32(dev, 0x510, 0);
+ } else {
+ bcma_write32(dev, 0x200, 0x7ff);
+
+ udelay(1);
+ }
+ }
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+ /* Work around for 4716 failures. */
+ if (dev->bus->chipinfo.id == 0x4716) {
+ u32 clk_freq;
+
+ clk_freq = bcma_cpu_clock(&dev->bus->drv_mips);
+ if (clk_freq >= 480000000)
+ tmp = 0x1846b; /* set CDR to 0x11(fast) */
+ else if (clk_freq == 453000000)
+ tmp = 0x1046b; /* set CDR to 0x10(slow) */
+ else
+ tmp = 0;
+
+ /* Change Shim mdio control reg to fix host not acking at
+ * high frequencies
+ */
+ if (tmp) {
+ bcma_write32(dev, 0x524, 0x1); /* write sel to enable */
+ udelay(500);
+
+ bcma_write32(dev, 0x524, tmp);
+ udelay(500);
+ bcma_write32(dev, 0x524, 0x4ab);
+ udelay(500);
+ tmp = bcma_read32(dev, 0x528);
+ bcma_write32(dev, 0x528, 0x80000000);
+ }
+ }
+#endif /* CONFIG_BCMA_DRIVER_MIPS */
+}
+
+static struct platform_device *bcma_hcd_create_pdev(struct bcma_device *dev,
+ char *name, u32 addr)
+{
+ struct platform_device *hci_dev;
+ struct resource *hci_res;
+ int ret = -ENOMEM;
+
+ hci_res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ if (!hci_res)
+ return ERR_PTR(-ENOMEM);
+
+ hci_res[0].start = addr;
+ hci_res[0].end = hci_res[0].start + BCMA_CORE_SIZE - 1;
+ hci_res[0].flags = IORESOURCE_MEM;
+
+ hci_res[1].start = dev->irq;
+ hci_res[1].flags = IORESOURCE_IRQ;
+
+ hci_dev = platform_device_alloc(name, 0);
+ if (!hci_dev)
+ goto err_alloc;
+
+ hci_dev->dev.parent = &dev->dev;
+ hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;
+
+ ret = platform_device_add_resources(hci_dev, hci_res, 2);
+ if (ret)
+ goto err_alloc;
+
+ ret = platform_device_add(hci_dev);
+ if (ret) {
+err_alloc:
+ kfree(hci_res);
+ platform_device_put(hci_dev);
+ return ERR_PTR(ret);
+ }
+
+ return hci_dev;
+}
+
+static int bcma_hcd_probe(struct bcma_device *dev)
+{
+ int err;
+ u16 chipid_top;
+ struct bcma_hcd_device *usb_dev;
+
+ /* USBcores are only connected on embedded devices. */
+ chipid_top = (dev->bus->chipinfo.id & 0xFF00);
+ if (chipid_top != 0x4700 && chipid_top != 0x5300)
+ return -ENODEV;
+
+ /* TODO: Probably need checks here; is the core connected? */
+
+ if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
+ dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
+ return -EOPNOTSUPP;
+
+ usb_dev = kzalloc(sizeof(struct bcma_hcd_device), GFP_KERNEL);
+ if (!usb_dev)
+ return -ENOMEM;
+
+ bcma_hcd_init_chip(dev);
+
+ usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, "ohci-platform",
+ dev->addr1);
+ if (IS_ERR(usb_dev->ohci_dev)) {
+ err = PTR_ERR(usb_dev->ohci_dev);
+ goto err_free_usb_dev;
+ }
+
+ usb_dev->ehci_dev = bcma_hcd_create_pdev(dev, "ehci-platform",
+ dev->addr);
+ if (IS_ERR(usb_dev->ehci_dev)) {
+ err = PTR_ERR(usb_dev->ehci_dev);
+ goto err_unregister_ohci_dev;
+
+ }
+
+ bcma_set_drvdata(dev, usb_dev);
+ return 0;
+
+err_unregister_ohci_dev:
+ platform_device_unregister(usb_dev->ohci_dev);
+err_free_usb_dev:
+ kfree(usb_dev);
+ return err;
+}
+
+static void bcma_hcd_remove(struct bcma_device *dev)
+{
+ struct bcma_hcd_device *usb_dev;
+ struct platform_device *ohci_dev;
+ struct platform_device *ehci_dev;
+
+ usb_dev = bcma_get_drvdata(dev);
+ if (!usb_dev)
+ return;
+
+ ohci_dev = usb_dev->ohci_dev;
+ ehci_dev = usb_dev->ehci_dev;
+
+ if (ohci_dev) {
+ platform_device_unregister(ohci_dev);
+ }
+ if (ehci_dev) {
+ platform_device_unregister(ehci_dev);
+ }
+
+ bcma_core_disable(dev, 0);
+}
+
+static void bcma_hcd_shutdown(struct bcma_device *dev)
+{
+ bcma_core_disable(dev, 0);
+}
+
+#ifdef CONFIG_PM
+
+static int bcma_hcd_suspend(struct bcma_device *dev, pm_message_t state)
+{
+ bcma_core_disable(dev, 0);
+
+ return 0;
+}
+
+static int bcma_hcd_resume(struct bcma_device *dev)
+{
+ bcma_core_enable(dev, 0);
+
+ return 0;
+}
+
+#else /* !CONFIG_PM */
+#define bcma_hcd_suspend NULL
+#define bcma_hcd_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct bcma_device_id bcma_hcd_table[] = {
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
+ BCMA_CORETABLE_END
+};
+MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);
+
+static struct bcma_driver bcma_hcd_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = bcma_hcd_table,
+ .probe = bcma_hcd_probe,
+ .remove = bcma_hcd_remove,
+ .shutdown = bcma_hcd_shutdown,
+ .suspend = bcma_hcd_suspend,
+ .resume = bcma_hcd_resume,
+};
+
+static int __init bcma_hcd_init(void)
+{
+ return bcma_driver_register(&bcma_hcd_driver);
+}
+module_init(bcma_hcd_init);
+
+static void __exit bcma_hcd_exit(void)
+{
+ bcma_driver_unregister(&bcma_hcd_driver);
+}
+module_exit(bcma_hcd_exit);

321
target/linux/brcm47xx/patches-3.0/0033-USB-Add-driver-for-the-ssb-bus.patch Normal file
View file

@ -0,0 +1,321 @@
From b61e70ad9080a6dbd3731917ec21dbcbb9d382a2 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:35:17 +0100
Subject: [PATCH 20/21] USB: Add driver for the ssb bus
This adds a USB driver using the generic platform device driver for the
USB controller found on the Broadcom ssb bus. The ssb bus just
exposes one device which serves the OHCI and the EHCI controller at the
same time. This driver probes for this USB controller and creates and
registers two new platform devices which will be probed by the new
generic platform device driver. This makes it possible to use the EHCI
and the OCHI controller on the ssb bus at the same time.
The old ssb OHCI USB driver will be removed in the next step as this
driver also provide an OHCI driver and an EHCI for the cores supporting
it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/usb/host/Kconfig | 12 ++
drivers/usb/host/Makefile | 1 +
drivers/usb/host/ssb-hcd.c | 320 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 333 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/ssb-hcd.c
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -610,3 +610,15 @@ config USB_HCD_BCMA
for ehci and ohci.
If unsure, say N.
+
+config USB_HCD_SSB
+ tristate "SSB usb host driver"
+ depends on SSB && EXPERIMENTAL
+ select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
+ select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
+ help
+ Enbale support for the EHCI and OCHI host controller on an bcma bus.
+ It converts the bcma driver into two platform device drivers
+ for ehci and ohci.
+
+ If unsure, say N.
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -36,3 +36,4 @@ obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd
obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-mph-dr-of.o
obj-$(CONFIG_USB_OCTEON2_COMMON) += octeon2-common.o
obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o
+obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o
--- /dev/null
+++ b/drivers/usb/host/ssb-hcd.c
@@ -0,0 +1,268 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom USB-core driver (SSB bus glue)
+ *
+ * Copyright 2011 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Based on ssb-ohci driver
+ * Copyright 2007 Michael Buesch <m@bues.ch>
+ *
+ * Derived from the OHCI-PCI driver
+ * Copyright 1999 Roman Weissgaerber
+ * Copyright 2000-2002 David Brownell
+ * Copyright 1999 Linus Torvalds
+ * Copyright 1999 Gregory P. Smith
+ *
+ * Derived from the USBcore related parts of Broadcom-SB
+ * Copyright 2005-2011 Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+#include <linux/ssb/ssb.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Hauke Mehrtens");
+MODULE_DESCRIPTION("Common USB driver for SSB Bus");
+MODULE_LICENSE("GPL");
+
+#define SSB_HCD_TMSLOW_HOSTMODE (1 << 29)
+
+struct ssb_hcd_device {
+ struct platform_device *ehci_dev;
+ struct platform_device *ohci_dev;
+
+ u32 enable_flags;
+};
+
+/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
+static u32 ssb_hcd_init_chip(struct ssb_device *dev)
+{
+ u32 tmp, flags = 0;
+
+ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
+ /* Put the device into host-mode. */
+ flags |= SSB_HCD_TMSLOW_HOSTMODE;
+ ssb_device_enable(dev, flags);
+ } else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+ /*
+ * USB 2.0 special considerations:
+ *
+ * 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);
+
+ /* Change Flush control reg */
+ tmp = ssb_read32(dev, 0x400);
+ tmp &= ~8;
+ ssb_write32(dev, 0x400, tmp);
+ tmp = ssb_read32(dev, 0x400);
+
+ /* Change Shim control reg */
+ tmp = ssb_read32(dev, 0x304);
+ tmp &= ~0x100;
+ ssb_write32(dev, 0x304, tmp);
+ tmp = ssb_read32(dev, 0x304);
+
+ udelay(1);
+
+ /* Work around for 5354 failures */
+ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
+ /* Change syn01 reg */
+ tmp = 0x00fe00fe;
+ ssb_write32(dev, 0x894, tmp);
+
+ /* Change syn03 reg */
+ tmp = ssb_read32(dev, 0x89c);
+ tmp |= 0x1;
+ ssb_write32(dev, 0x89c, tmp);
+ }
+ } else
+ ssb_device_enable(dev, 0);
+
+ return flags;
+}
+
+static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev,
+ char *name, u32 addr,
+ u32 len)
+{
+ struct platform_device *hci_dev;
+ struct resource *hci_res;
+ int ret = -ENOMEM;
+
+ hci_res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ if (!hci_res)
+ return ERR_PTR(-ENOMEM);
+
+ hci_res[0].start = addr;
+ hci_res[0].end = hci_res[0].start + len - 1;
+ hci_res[0].flags = IORESOURCE_MEM;
+
+ hci_res[1].start = dev->irq;
+ hci_res[1].flags = IORESOURCE_IRQ;
+
+ hci_dev = platform_device_alloc(name, 0);
+ if (!hci_dev)
+ goto err_alloc;
+
+ hci_dev->dev.parent = dev->dev;
+ hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;
+
+ ret = platform_device_add_resources(hci_dev, hci_res, 2);
+ if (ret)
+ goto err_alloc;
+
+ ret = platform_device_add(hci_dev);
+ if (ret) {
+err_alloc:
+ kfree(hci_res);
+ platform_device_put(hci_dev);
+ return ERR_PTR(ret);
+ }
+
+ return hci_dev;
+}
+
+static int ssb_hcd_probe(struct ssb_device *dev, const struct ssb_device_id *id)
+{
+ int err, tmp;
+ int start, len;
+ u16 chipid_top;
+ struct ssb_hcd_device *usb_dev;
+
+ /* USBcores are only connected on embedded devices. */
+ chipid_top = (dev->bus->chip_id & 0xFF00);
+ if (chipid_top != 0x4700 && chipid_top != 0x5300)
+ return -ENODEV;
+
+ /* TODO: Probably need checks here; is the core connected? */
+
+ if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
+ dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
+ return -EOPNOTSUPP;
+
+ usb_dev = kzalloc(sizeof(struct ssb_hcd_device), GFP_KERNEL);
+ if (!usb_dev)
+ return -ENOMEM;
+
+ /* We currently always attach SSB_DEV_USB11_HOSTDEV
+ * as HOST OHCI. If we want to attach it as Client device,
+ * we must branch here and call into the (yet to
+ * be written) Client mode driver. Same for remove(). */
+ usb_dev->enable_flags = ssb_hcd_init_chip(dev);
+
+ tmp = ssb_read32(dev, SSB_ADMATCH0);
+
+ start = ssb_admatch_base(tmp);
+ len = ssb_admatch_size(tmp);
+ usb_dev->ohci_dev = ssb_hcd_create_pdev(dev, "ohci-platform", start,
+ len);
+ if (IS_ERR(usb_dev->ohci_dev)) {
+ err = PTR_ERR(usb_dev->ohci_dev);
+ goto err_free_usb_dev;
+ }
+
+ if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+ start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */
+ len = 0x100; /* ehci reg block size */
+ usb_dev->ehci_dev = ssb_hcd_create_pdev(dev, "ehci-platform",
+ start, len);
+ if (IS_ERR(usb_dev->ehci_dev)) {
+ err = PTR_ERR(usb_dev->ehci_dev);
+ goto err_unregister_ohci_dev;
+ }
+ }
+
+ ssb_set_drvdata(dev, usb_dev);
+ return 0;
+
+err_unregister_ohci_dev:
+ platform_device_unregister(usb_dev->ohci_dev);
+err_free_usb_dev:
+ kfree(usb_dev);
+ return err;
+}
+
+static void ssb_hcd_remove(struct ssb_device *dev)
+{
+ struct ssb_hcd_device *usb_dev;
+ struct platform_device *ohci_dev;
+ struct platform_device *ehci_dev;
+
+ usb_dev = ssb_get_drvdata(dev);
+ if (!usb_dev)
+ return;
+
+ ohci_dev = usb_dev->ohci_dev;
+ ehci_dev = usb_dev->ehci_dev;
+
+ if (ohci_dev) {
+ platform_device_unregister(ohci_dev);
+ }
+ if (ehci_dev) {
+ platform_device_unregister(ehci_dev);
+ }
+
+ ssb_device_disable(dev, 0);
+}
+
+static void ssb_hcd_shutdown(struct ssb_device *dev)
+{
+ ssb_device_disable(dev, 0);
+}
+
+#ifdef CONFIG_PM
+
+static int ssb_hcd_suspend(struct ssb_device *dev, pm_message_t state)
+{
+ ssb_device_disable(dev, 0);
+
+ return 0;
+}
+
+static int ssb_hcd_resume(struct ssb_device *dev)
+{
+ ssb_device_enable(dev, usb_dev->enable_flags);
+
+ return 0;
+}
+
+#else /* !CONFIG_PM */
+#define ssb_hcd_suspend NULL
+#define ssb_hcd_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct ssb_device_id ssb_hcd_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),
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
+ SSB_DEVTABLE_END
+};
+MODULE_DEVICE_TABLE(ssb, ssb_hcd_table);
+
+static struct ssb_driver ssb_hcd_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = ssb_hcd_table,
+ .probe = ssb_hcd_probe,
+ .remove = ssb_hcd_remove,
+ .shutdown = ssb_hcd_shutdown,
+ .suspend = ssb_hcd_suspend,
+ .resume = ssb_hcd_resume,
+};
+
+static int __init ssb_hcd_init(void)
+{
+ return ssb_driver_register(&ssb_hcd_driver);
+}
+module_init(ssb_hcd_init);
+
+static void __exit ssb_hcd_exit(void)
+{
+ ssb_driver_unregister(&ssb_hcd_driver);
+}
+module_exit(ssb_hcd_exit);

357
target/linux/brcm47xx/patches-3.0/0034-USB-OHCI-remove-old-SSB-OHCI-driver.patch Normal file
View file

@ -0,0 +1,357 @@
From 8483de69568d1da9c106683d35d2b79c729b56c2 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:36:50 +0100
Subject: [PATCH 21/21] USB: OHCI: remove old SSB OHCI driver
This is now replaced by the new ssb USB driver, which also supports
devices with an EHCI controller.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/usb/host/Kconfig | 13 --
drivers/usb/host/ohci-hcd.c | 19 ---
drivers/usb/host/ohci-ssb.c | 260 -------------------------------------------
3 files changed, 0 insertions(+), 292 deletions(-)
delete mode 100644 drivers/usb/host/ohci-ssb.c
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -351,19 +351,6 @@ config USB_OHCI_HCD_PCI
Enables support for PCI-bus plug-in USB controller cards.
If unsure, say Y.
-config USB_OHCI_HCD_SSB
- bool "OHCI support for Broadcom SSB OHCI core"
- depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
- default n
- ---help---
- Support for the Sonics Silicon Backplane (SSB) attached
- Broadcom USB OHCI core.
-
- This device is present in some embedded devices with
- Broadcom based SSB bus.
-
- If unsure, say N.
-
config USB_OHCI_SH
bool "OHCI support for SuperH USB controller"
depends on USB_OHCI_HCD && SUPERH
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1079,11 +1079,6 @@ MODULE_LICENSE ("GPL");
#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver
#endif
-#ifdef CONFIG_USB_OHCI_HCD_SSB
-#include "ohci-ssb.c"
-#define SSB_OHCI_DRIVER ssb_ohci_driver
-#endif
-
#ifdef CONFIG_MFD_SM501
#include "ohci-sm501.c"
#define SM501_OHCI_DRIVER ohci_hcd_sm501_driver
@@ -1128,7 +1123,6 @@ MODULE_LICENSE ("GPL");
!defined(PS3_SYSTEM_BUS_DRIVER) && \
!defined(SM501_OHCI_DRIVER) && \
!defined(TMIO_OHCI_DRIVER) && \
- !defined(SSB_OHCI_DRIVER) && \
!defined(PLATFORM_OHCI_DRIVER)
#error "missing bus glue for ohci-hcd"
#endif
@@ -1195,12 +1189,6 @@ static int __init ohci_hcd_mod_init(void
goto error_pci;
#endif
-#ifdef SSB_OHCI_DRIVER
- retval = ssb_driver_register(&SSB_OHCI_DRIVER);
- if (retval)
- goto error_ssb;
-#endif
-
#ifdef SM501_OHCI_DRIVER
retval = platform_driver_register(&SM501_OHCI_DRIVER);
if (retval < 0)
@@ -1234,10 +1222,6 @@ static int __init ohci_hcd_mod_init(void
platform_driver_unregister(&SM501_OHCI_DRIVER);
error_sm501:
#endif
-#ifdef SSB_OHCI_DRIVER
- ssb_driver_unregister(&SSB_OHCI_DRIVER);
- error_ssb:
-#endif
#ifdef PCI_DRIVER
pci_unregister_driver(&PCI_DRIVER);
error_pci:
@@ -1288,9 +1272,6 @@ static void __exit ohci_hcd_mod_exit(voi
#ifdef SM501_OHCI_DRIVER
platform_driver_unregister(&SM501_OHCI_DRIVER);
#endif
-#ifdef SSB_OHCI_DRIVER
- ssb_driver_unregister(&SSB_OHCI_DRIVER);
-#endif
#ifdef PCI_DRIVER
pci_unregister_driver(&PCI_DRIVER);
#endif
--- a/drivers/usb/host/ohci-ssb.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * Sonics Silicon Backplane
- * Broadcom USB-core OHCI driver
- *
- * Copyright 2007 Michael Buesch <mb@bu3sch.de>
- *
- * Derived from the OHCI-PCI driver
- * Copyright 1999 Roman Weissgaerber
- * Copyright 2000-2002 David Brownell
- * Copyright 1999 Linus Torvalds
- * Copyright 1999 Gregory P. Smith
- *
- * Derived from the USBcore related parts of Broadcom-SB
- * Copyright 2005 Broadcom Corporation
- *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-#include <linux/ssb/ssb.h>
-
-
-#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29)
-
-struct ssb_ohci_device {
- struct ohci_hcd ohci; /* _must_ be at the beginning. */
-
- u32 enable_flags;
-};
-
-static inline
-struct ssb_ohci_device *hcd_to_ssb_ohci(struct usb_hcd *hcd)
-{
- return (struct ssb_ohci_device *)(hcd->hcd_priv);
-}
-
-
-static int ssb_ohci_reset(struct usb_hcd *hcd)
-{
- struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
- struct ohci_hcd *ohci = &ohcidev->ohci;
- int err;
-
- ohci_hcd_init(ohci);
- err = ohci_init(ohci);
-
- return err;
-}
-
-static int ssb_ohci_start(struct usb_hcd *hcd)
-{
- struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
- struct ohci_hcd *ohci = &ohcidev->ohci;
- int err;
-
- err = ohci_run(ohci);
- if (err < 0) {
- ohci_err(ohci, "can't start\n");
- ohci_stop(hcd);
- }
-
- return err;
-}
-
-static const struct hc_driver ssb_ohci_hc_driver = {
- .description = "ssb-usb-ohci",
- .product_desc = "SSB OHCI Controller",
- .hcd_priv_size = sizeof(struct ssb_ohci_device),
-
- .irq = ohci_irq,
- .flags = HCD_MEMORY | HCD_USB11,
-
- .reset = ssb_ohci_reset,
- .start = ssb_ohci_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- .get_frame_number = ohci_get_frame,
-
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
-#ifdef CONFIG_PM
- .bus_suspend = ohci_bus_suspend,
- .bus_resume = ohci_bus_resume,
-#endif
-
- .start_port_reset = ohci_start_port_reset,
-};
-
-static void ssb_ohci_detach(struct ssb_device *dev)
-{
- struct usb_hcd *hcd = ssb_get_drvdata(dev);
-
- if (hcd->driver->shutdown)
- hcd->driver->shutdown(hcd);
- usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
- ssb_device_disable(dev, 0);
-}
-
-static int ssb_ohci_attach(struct ssb_device *dev)
-{
- struct ssb_ohci_device *ohcidev;
- struct usb_hcd *hcd;
- int err = -ENOMEM;
- u32 tmp, flags = 0;
-
- if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
- dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
- return -EOPNOTSUPP;
-
- if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
- /* Put the device into host-mode. */
- flags |= SSB_OHCI_TMSLOW_HOSTMODE;
- ssb_device_enable(dev, flags);
- } else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
- /*
- * USB 2.0 special considerations:
- *
- * 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);
-
- /* Change Flush control reg */
- tmp = ssb_read32(dev, 0x400);
- tmp &= ~8;
- ssb_write32(dev, 0x400, tmp);
- tmp = ssb_read32(dev, 0x400);
-
- /* Change Shim control reg */
- tmp = ssb_read32(dev, 0x304);
- tmp &= ~0x100;
- ssb_write32(dev, 0x304, tmp);
- tmp = ssb_read32(dev, 0x304);
-
- udelay(1);
-
- /* Work around for 5354 failures */
- if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
- /* Change syn01 reg */
- tmp = 0x00fe00fe;
- ssb_write32(dev, 0x894, tmp);
-
- /* Change syn03 reg */
- tmp = ssb_read32(dev, 0x89c);
- tmp |= 0x1;
- ssb_write32(dev, 0x89c, tmp);
- }
- } else
- ssb_device_enable(dev, 0);
-
- hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
- dev_name(dev->dev));
- if (!hcd)
- goto err_dev_disable;
- ohcidev = hcd_to_ssb_ohci(hcd);
- ohcidev->enable_flags = flags;
-
- tmp = ssb_read32(dev, SSB_ADMATCH0);
- hcd->rsrc_start = ssb_admatch_base(tmp);
- hcd->rsrc_len = ssb_admatch_size(tmp);
- hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs)
- goto err_put_hcd;
- err = usb_add_hcd(hcd, dev->irq, IRQF_DISABLED | IRQF_SHARED);
- if (err)
- goto err_iounmap;
-
- ssb_set_drvdata(dev, hcd);
-
- return err;
-
-err_iounmap:
- iounmap(hcd->regs);
-err_put_hcd:
- usb_put_hcd(hcd);
-err_dev_disable:
- ssb_device_disable(dev, flags);
- return err;
-}
-
-static int ssb_ohci_probe(struct ssb_device *dev,
- const struct ssb_device_id *id)
-{
- int err;
- u16 chipid_top;
-
- /* USBcores are only connected on embedded devices. */
- chipid_top = (dev->bus->chip_id & 0xFF00);
- if (chipid_top != 0x4700 && chipid_top != 0x5300)
- return -ENODEV;
-
- /* TODO: Probably need checks here; is the core connected? */
-
- if (usb_disabled())
- return -ENODEV;
-
- /* We currently always attach SSB_DEV_USB11_HOSTDEV
- * as HOST OHCI. If we want to attach it as Client device,
- * we must branch here and call into the (yet to
- * be written) Client mode driver. Same for remove(). */
-
- err = ssb_ohci_attach(dev);
-
- return err;
-}
-
-static void ssb_ohci_remove(struct ssb_device *dev)
-{
- ssb_ohci_detach(dev);
-}
-
-#ifdef CONFIG_PM
-
-static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state)
-{
- ssb_device_disable(dev, 0);
-
- return 0;
-}
-
-static int ssb_ohci_resume(struct ssb_device *dev)
-{
- struct usb_hcd *hcd = ssb_get_drvdata(dev);
- struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
-
- ssb_device_enable(dev, ohcidev->enable_flags);
-
- ohci_finish_controller_resume(hcd);
- return 0;
-}
-
-#else /* !CONFIG_PM */
-#define ssb_ohci_suspend NULL
-#define ssb_ohci_resume NULL
-#endif /* CONFIG_PM */
-
-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),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
- SSB_DEVTABLE_END
-};
-MODULE_DEVICE_TABLE(ssb, ssb_ohci_table);
-
-static struct ssb_driver ssb_ohci_driver = {
- .name = KBUILD_MODNAME,
- .id_table = ssb_ohci_table,
- .probe = ssb_ohci_probe,
- .remove = ssb_ohci_remove,
- .suspend = ssb_ohci_suspend,
- .resume = ssb_ohci_resume,
-};

330
target/linux/brcm47xx/patches-3.0/022-USB-Add-ehci-ssb-driver.patch
View file

@ -1,330 +0,0 @@
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -230,6 +230,19 @@ config USB_OXU210HP_HCD
To compile this driver as a module, choose M here: the
module will be called oxu210hp-hcd.
+config USB_EHCI_HCD_SSB
+ bool "EHCI support for Broadcom SSB EHCI core"
+ depends on USB_EHCI_HCD && (SSB = y || SSB = USB_EHCI_HCD) && EXPERIMENTAL
+ default n
+ ---help---
+ Support for the Sonics Silicon Backplane (SSB) attached
+ Broadcom USB EHCI core.
+
+ This device is present in some embedded devices with
+ Broadcom based SSB bus.
+
+ If unsure, say N.
+
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
@@ -1312,9 +1312,14 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_grlib_driver
#endif
+#ifdef CONFIG_USB_EHCI_HCD_SSB
+#include "ehci-ssb.c"
+#define SSB_EHCI_DRIVER ssb_ehci_driver
+#endif
+
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
- !defined(XILINX_OF_PLATFORM_DRIVER)
+ !defined(XILINX_OF_PLATFORM_DRIVER) && !defined(SSB_EHCI_DRIVER)
#error "missing bus glue for ehci-hcd"
#endif
@@ -1374,10 +1379,20 @@ static int __init ehci_hcd_init(void)
if (retval < 0)
goto clean4;
#endif
+
+#ifdef SSB_EHCI_DRIVER
+ retval = ssb_driver_register(&SSB_EHCI_DRIVER);
+ if (retval < 0)
+ goto clean5;
+#endif
return retval;
+#ifdef SSB_EHCI_DRIVER
+ /* ssb_driver_unregister(&SSB_EHCI_DRIVER); */
+clean5:
+#endif
#ifdef XILINX_OF_PLATFORM_DRIVER
- /* platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER); */
+ platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
clean4:
#endif
#ifdef OF_PLATFORM_DRIVER
@@ -1408,6 +1423,9 @@ module_init(ehci_hcd_init);
static void __exit ehci_hcd_cleanup(void)
{
+#ifdef SSB_EHCI_DRIVER
+ ssb_driver_unregister(&SSB_EHCI_DRIVER);
+#endif
#ifdef XILINX_OF_PLATFORM_DRIVER
platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
#endif
--- /dev/null
+++ b/drivers/usb/host/ehci-ssb.c
@@ -0,0 +1,255 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom USB-core EHCI driver (SSB bus glue)
+ *
+ * Copyright 2007 Steven Brown <sbrown@cortland.com>
+ * Copyright 2010 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Derived from the OHCI-SSB driver
+ * Copyright 2007 Michael Buesch <mb@bu3sch.de>
+ *
+ * Derived from the EHCI-PCI driver
+ * Copyright (c) 2000-2004 by David Brownell
+ *
+ * Derived from the OHCI-PCI driver
+ * Copyright 1999 Roman Weissgaerber
+ * Copyright 2000-2002 David Brownell
+ * Copyright 1999 Linus Torvalds
+ * Copyright 1999 Gregory P. Smith
+ *
+ * Derived from the USBcore related parts of Broadcom-SB
+ * Copyright 2005 Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+#include <linux/ssb/ssb.h>
+
+
+struct ssb_ehci_device {
+ struct ehci_hcd ehci; /* _must_ be at the beginning. */
+};
+
+static inline
+struct ssb_ehci_device *hcd_to_ssb_ehci(struct usb_hcd *hcd)
+{
+ return (struct ssb_ehci_device *)(hcd->hcd_priv);
+}
+
+static int ssb_ehci_reset(struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ int err;
+
+ ehci->caps = hcd->regs;
+ ehci->regs = hcd->regs +
+ HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
+
+ dbg_hcs_params(ehci, "reset");
+ dbg_hcc_params(ehci, "reset");
+
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+ err = ehci_halt(ehci);
+
+ if (err)
+ return err;
+
+ err = ehci_init(hcd);
+
+ if (err)
+ return err;
+
+ ehci_reset(ehci);
+
+ return err;
+}
+
+static const struct hc_driver ssb_ehci_hc_driver = {
+ .description = "ssb-usb-ehci",
+ .product_desc = "SSB EHCI Controller",
+ .hcd_priv_size = sizeof(struct ssb_ehci_device),
+
+ .irq = ehci_irq,
+ .flags = HCD_MEMORY | HCD_USB2,
+
+ .reset = ssb_ehci_reset,
+ .start = ehci_run,
+ .stop = ehci_stop,
+ .shutdown = ehci_shutdown,
+
+ .urb_enqueue = ehci_urb_enqueue,
+ .urb_dequeue = ehci_urb_dequeue,
+ .endpoint_disable = ehci_endpoint_disable,
+ .endpoint_reset = ehci_endpoint_reset,
+
+ .get_frame_number = ehci_get_frame,
+
+ .hub_status_data = ehci_hub_status_data,
+ .hub_control = ehci_hub_control,
+#if defined(CONFIG_PM)
+ .bus_suspend = ehci_bus_suspend,
+ .bus_resume = ehci_bus_resume,
+#endif
+ .relinquish_port = ehci_relinquish_port,
+ .port_handed_over = ehci_port_handed_over,
+
+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+};
+
+static void ssb_ehci_detach(struct ssb_device *dev)
+{
+ struct usb_hcd *hcd = ssb_get_drvdata(dev);
+
+ if (hcd->driver->shutdown)
+ hcd->driver->shutdown(hcd);
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+ ssb_device_disable(dev, 0);
+}
+
+static int ssb_ehci_attach(struct ssb_device *dev)
+{
+ struct ssb_ehci_device *ehcidev;
+ struct usb_hcd *hcd;
+ int err = -ENOMEM;
+ u32 tmp;
+
+ if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
+ dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
+ return -EOPNOTSUPP;
+
+ /*
+ * USB 2.0 special considerations:
+ *
+ * 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);
+
+ /* Change Flush control reg */
+ tmp = ssb_read32(dev, 0x400);
+ tmp &= ~8;
+ ssb_write32(dev, 0x400, tmp);
+ tmp = ssb_read32(dev, 0x400);
+
+ /* Change Shim control reg */
+ tmp = ssb_read32(dev, 0x304);
+ tmp &= ~0x100;
+ ssb_write32(dev, 0x304, tmp);
+ tmp = ssb_read32(dev, 0x304);
+
+ udelay(1);
+
+ /* Work around for 5354 failures */
+ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
+ /* Change syn01 reg */
+ tmp = 0x00fe00fe;
+ ssb_write32(dev, 0x894, tmp);
+
+ /* Change syn03 reg */
+ tmp = ssb_read32(dev, 0x89c);
+ tmp |= 0x1;
+ ssb_write32(dev, 0x89c, tmp);
+ }
+
+ hcd = usb_create_hcd(&ssb_ehci_hc_driver, dev->dev,
+ dev_name(dev->dev));
+ if (!hcd)
+ goto err_dev_disable;
+
+ ehcidev = hcd_to_ssb_ehci(hcd);
+ tmp = ssb_read32(dev, SSB_ADMATCH0);
+ hcd->rsrc_start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */
+ hcd->rsrc_len = 0x100; /* ehci reg block size */
+ /*
+ * start & size modified per sbutils.c
+ */
+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs)
+ goto err_put_hcd;
+ err = usb_add_hcd(hcd, dev->irq, IRQF_DISABLED | IRQF_SHARED);
+ if (err)
+ goto err_iounmap;
+
+ ssb_set_drvdata(dev, hcd);
+
+ return err;
+
+err_iounmap:
+ iounmap(hcd->regs);
+err_put_hcd:
+ usb_put_hcd(hcd);
+err_dev_disable:
+ ssb_device_disable(dev, 0);
+ return err;
+}
+
+static int ssb_ehci_probe(struct ssb_device *dev,
+ const struct ssb_device_id *id)
+{
+ int err;
+ u16 chipid_top;
+
+ /* USBcores are only connected on embedded devices. */
+ chipid_top = (dev->bus->chip_id & 0xFF00);
+ if (chipid_top != 0x4700 && chipid_top != 0x5300)
+ return -ENODEV;
+
+ /* TODO: Probably need checks here; is the core connected? */
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ err = ssb_ehci_attach(dev);
+
+ return err;
+}
+
+static void ssb_ehci_remove(struct ssb_device *dev)
+{
+ ssb_ehci_detach(dev);
+}
+
+#ifdef CONFIG_PM
+
+static int ssb_ehci_suspend(struct ssb_device *dev, pm_message_t state)
+{
+ ssb_device_disable(dev, 0);
+
+ return 0;
+}
+
+static int ssb_ehci_resume(struct ssb_device *dev)
+{
+ struct usb_hcd *hcd = ssb_get_drvdata(dev);
+ struct ssb_ehci_device *ehcidev = hcd_to_ssb_ehci(hcd);
+
+ ssb_device_enable(dev, 0);
+
+ ehci_finish_controller_resume(hcd);
+ return 0;
+}
+
+#else /* !CONFIG_PM */
+#define ssb_ehci_suspend NULL
+#define ssb_ehci_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct ssb_device_id ssb_ehci_table[] = {
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
+ SSB_DEVTABLE_END
+};
+MODULE_DEVICE_TABLE(ssb, ssb_ehci_table);
+
+static struct ssb_driver ssb_ehci_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = ssb_ehci_table,
+ .probe = ssb_ehci_probe,
+ .remove = ssb_ehci_remove,
+ .suspend = ssb_ehci_suspend,
+ .resume = ssb_ehci_resume,
+};

188
target/linux/brcm47xx/patches-3.0/023-usb_ehci_ohci.patch
View file

@ -1,188 +0,0 @@
--- a/drivers/usb/host/ohci-ssb.c
+++ b/drivers/usb/host/ohci-ssb.c
@@ -17,6 +17,8 @@
*/
#include <linux/ssb/ssb.h>
+extern int ssb_ehci_attach(struct ssb_device *dev, struct usb_hcd **hcd);
+extern void ssb_ehci_detach(struct ssb_device *dev, struct usb_hcd *hcd);
#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29)
@@ -24,6 +26,9 @@ struct ssb_ohci_device {
struct ohci_hcd ohci; /* _must_ be at the beginning. */
u32 enable_flags;
+#ifdef CONFIG_USB_EHCI_HCD_SSB
+ struct usb_hcd *ehci_hcd;
+#endif
};
static inline
@@ -92,6 +97,9 @@ static const struct hc_driver ssb_ohci_h
static void ssb_ohci_detach(struct ssb_device *dev)
{
struct usb_hcd *hcd = ssb_get_drvdata(dev);
+#ifdef CONFIG_USB_EHCI_HCD_SSB
+ struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
+#endif
if (hcd->driver->shutdown)
hcd->driver->shutdown(hcd);
@@ -99,6 +107,14 @@ static void ssb_ohci_detach(struct ssb_d
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
+
+#ifdef CONFIG_USB_EHCI_HCD_SSB
+ /*
+ * Also detach ehci function
+ */
+ if (dev->id.coreid == SSB_DEV_USB20_HOST)
+ ssb_ehci_detach(dev, ohcidev->ehci_hcd);
+#endif
ssb_device_disable(dev, 0);
}
@@ -121,6 +137,9 @@ static int ssb_ohci_attach(struct ssb_de
/*
* USB 2.0 special considerations:
*
+ * Since the core supports both OHCI and EHCI functions,
+ * it must only be reset once.
+ *
* 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.
@@ -175,6 +194,14 @@ static int ssb_ohci_attach(struct ssb_de
ssb_set_drvdata(dev, hcd);
+#ifdef CONFIG_USB_EHCI_HCD_SSB
+ /*
+ * attach ehci function in this core
+ */
+ if (dev->id.coreid == SSB_DEV_USB20_HOST)
+ err = ssb_ehci_attach(dev, &(ohcidev->ehci_hcd));
+#endif
+
return err;
err_iounmap:
--- a/drivers/usb/host/ehci-ssb.c
+++ b/drivers/usb/host/ehci-ssb.c
@@ -106,10 +106,18 @@ static void ssb_ehci_detach(struct ssb_d
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
+#ifndef CONFIG_USB_OHCI_HCD_SSB
+ ssb_device_disable(dev, 0);
+#endif
ssb_device_disable(dev, 0);
}
+EXPORT_SYMBOL_GPL(ssb_ehci_detach);
+#ifndef CONFIG_USB_OHCI_HCD_SSB
static int ssb_ehci_attach(struct ssb_device *dev)
+#else
+static int ssb_ehci_attach(struct ssb_device *dev, struct usb_hcd **ehci_hcd)
+#endif
{
struct ssb_ehci_device *ehcidev;
struct usb_hcd *hcd;
@@ -120,6 +128,7 @@ static int ssb_ehci_attach(struct ssb_de
dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
return -EOPNOTSUPP;
+#ifndef CONFIG_USB_OHCI_HCD_SSB
/*
* USB 2.0 special considerations:
*
@@ -155,6 +164,7 @@ static int ssb_ehci_attach(struct ssb_de
tmp |= 0x1;
ssb_write32(dev, 0x89c, tmp);
}
+#endif
hcd = usb_create_hcd(&ssb_ehci_hc_driver, dev->dev,
dev_name(dev->dev));
@@ -175,7 +185,11 @@ static int ssb_ehci_attach(struct ssb_de
if (err)
goto err_iounmap;
+#ifndef CONFIG_USB_OHCI_HCD_SSB
ssb_set_drvdata(dev, hcd);
+#else
+ *ehci_hcd = hcd;
+#endif
return err;
@@ -187,7 +201,9 @@ err_dev_disable:
ssb_device_disable(dev, 0);
return err;
}
+EXPORT_SYMBOL_GPL(ssb_ehci_attach);
+#ifndef CONFIG_USB_OHCI_HCD_SSB
static int ssb_ehci_probe(struct ssb_device *dev,
const struct ssb_device_id *id)
{
@@ -238,6 +254,7 @@ static int ssb_ehci_resume(struct ssb_de
#define ssb_ehci_suspend NULL
#define ssb_ehci_resume NULL
#endif /* CONFIG_PM */
+#endif /* !CONFIG_USB_OHCI_HCD_SSB */
static const struct ssb_device_id ssb_ehci_table[] = {
SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
@@ -245,6 +262,8 @@ static const struct ssb_device_id ssb_eh
};
MODULE_DEVICE_TABLE(ssb, ssb_ehci_table);
+
+#ifndef CONFIG_USB_OHCI_HCD_SSB
static struct ssb_driver ssb_ehci_driver = {
.name = KBUILD_MODNAME,
.id_table = ssb_ehci_table,
@@ -253,3 +272,4 @@ static struct ssb_driver ssb_ehci_driver
.suspend = ssb_ehci_suspend,
.resume = ssb_ehci_resume,
};
+#endif
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1380,17 +1380,21 @@ static int __init ehci_hcd_init(void)
goto clean4;
#endif
+#ifndef CONFIG_USB_OHCI_HCD_SSB
#ifdef SSB_EHCI_DRIVER
retval = ssb_driver_register(&SSB_EHCI_DRIVER);
if (retval < 0)
goto clean5;
#endif
+#endif /* !CONFIG_USB_OHCI_HCD_SSB */
return retval;
+#ifndef CONFIG_USB_OHCI_HCD_SSB
#ifdef SSB_EHCI_DRIVER
/* ssb_driver_unregister(&SSB_EHCI_DRIVER); */
clean5:
#endif
+#endif /* !CONFIG_USB_OHCI_HCD_SSB */
#ifdef XILINX_OF_PLATFORM_DRIVER
platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
clean4:
@@ -1423,9 +1427,11 @@ module_init(ehci_hcd_init);
static void __exit ehci_hcd_cleanup(void)
{
+#ifndef CONFIG_USB_OHCI_HCD_SSB
#ifdef SSB_EHCI_DRIVER
ssb_driver_unregister(&SSB_EHCI_DRIVER);
#endif
+#endif /* !CONFIG_USB_OHCI_HCD_SSB */
#ifdef XILINX_OF_PLATFORM_DRIVER
platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
#endif

15
target/linux/brcm47xx/patches-3.0/280-activate_ssb_support_in_usb.patch
View file

@ -3,14 +3,23 @@ This prevents the options from being delete with make kernel_oldconfig.
drivers/ssb/Kconfig | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -37,6 +37,7 @@ config BCMA_DRIVER_PCI_HOSTMODE
config BCMA_HOST_SOC
bool
depends on BCMA_DRIVER_MIPS
+ select USB_HCD_BCMA if USB_EHCI_HCD || USB_OHCI_HCD
config BCMA_SFLASH
bool
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -147,6 +147,8 @@ config SSB_SFLASH
@@ -147,6 +147,7 @@ config SSB_SFLASH
config SSB_EMBEDDED
bool
depends on SSB_DRIVER_MIPS
+ select USB_EHCI_HCD_SSB if USB_EHCI_HCD
+ select USB_OHCI_HCD_SSB if USB_OHCI_HCD
+ select USB_HCD_SSB if USB_EHCI_HCD || USB_OHCI_HCD
default y
config SSB_DRIVER_EXTIF