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brcm47xx: update usb driver

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Add workarround for BCM5357 and BCM4749.

This patch contains the following fixes from George Kashperko:
* separate subroutines for controller initialization workarounds -
   following CodingStyle recommendations;
* __devinit __devexit __devinitconst annotations for CONFIG_HOTPLUG;
* fix leak in ssb_hcd_create_pdev/bcma_hcd_create_pdev - as hci_res being
   kmalloc'ed is never freed anywhere while platform_device_add_resources
   will kmemdup resources right away;
* fix compilation error in ssb_hcd_resume - it will fail as soon as
   CONFIG_PM is selected.

SVN-Revision: 29734
This commit is contained in:
Hauke Mehrtens 2012-01-13 20:11:23 +00:00
parent 9d497cb132
commit d5bc3a994b
2 changed files with 114 additions and 100 deletions
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116
target/linux/brcm47xx/patches-3.0/0032-USB-Add-driver-for-the-bcma-bus.patch
View file

@ -1,7 +1,7 @@
From 7151c34627b938486008cfab25bfb4e4f730a021 Mon Sep 17 00:00:00 2001
From 4ea647c5a257d57eaf230f783e54b2c0232852b8 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
Subject: [PATCH 19/26] 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
@ -15,8 +15,8 @@ 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(-)
drivers/usb/host/bcma-hcd.c | 309 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 322 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/bcma-hcd.c
--- a/drivers/usb/host/Kconfig
@ -46,7 +46,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o
--- /dev/null
+++ b/drivers/usb/host/bcma-hcd.c
@@ -0,0 +1,299 @@
@@ -0,0 +1,309 @@
+/*
+ * Broadcom specific Advanced Microcontroller Bus
+ * Broadcom USB-core driver (BCMA bus glue)
@ -76,15 +76,46 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+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;
+};
+
+static void __devinit bcma_hcd_4716wa(struct bcma_device *dev)
+{
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+ /* Work around for 4716 failures. */
+ if (dev->bus->chipinfo.id == 0x4716) {
+ u32 tmp;
+
+ tmp = bcma_cpu_clock(&dev->bus->drv_mips);
+ if (tmp >= 480000000)
+ tmp = 0x1846b; /* set CDR to 0x11(fast) */
+ else if (tmp == 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);
+ bcma_read32(dev, 0x528);
+ bcma_write32(dev, 0x528, 0x80000000);
+ }
+ }
+#endif /* CONFIG_BCMA_DRIVER_MIPS */
+}
+
+/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
+static void bcma_hcd_init_chip(struct bcma_device *dev)
+static void __devinit bcma_hcd_init_chip(struct bcma_device *dev)
+{
+ u32 tmp;
+
@ -150,51 +181,22 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+
+ udelay(1);
+ }
+
+ bcma_hcd_4716wa(dev);
+ }
+#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)
+static struct platform_device * __devinit
+bcma_hcd_create_pdev(struct bcma_device *dev, char *name, u32 addr)
+{
+ struct platform_device *hci_dev;
+ struct resource *hci_res;
+ struct resource hci_res[2];
+ int ret = -ENOMEM;
+
+ hci_res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ if (!hci_res)
+ return ERR_PTR(-ENOMEM);
+ memset(hci_res, 0, sizeof(hci_res));
+
+ hci_res[0].start = addr;
+ hci_res[0].end = hci_res[0].start + BCMA_CORE_SIZE - 1;
+ hci_res[0].end = hci_res[0].start + 0x1000 - 1;
+ hci_res[0].flags = IORESOURCE_MEM;
+
+ hci_res[1].start = dev->irq;
@ -207,14 +209,14 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ 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);
+ ret = platform_device_add_resources(hci_dev, hci_res,
+ ARRAY_SIZE(hci_res));
+ 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);
+ }
@ -222,14 +224,17 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ return hci_dev;
+}
+
+static int bcma_hcd_probe(struct bcma_device *dev)
+static int __devinit bcma_hcd_probe(struct bcma_device *dev)
+{
+ int err;
+ u16 chipid_top;
+ u32 ohci_addr;
+ struct bcma_hcd_device *usb_dev;
+ struct bcma_chipinfo *chipinfo;
+
+ chipinfo = &dev->bus->chipinfo;
+ /* USBcores are only connected on embedded devices. */
+ chipid_top = (dev->bus->chipinfo.id & 0xFF00);
+ chipid_top = (chipinfo->id & 0xFF00);
+ if (chipid_top != 0x4700 && chipid_top != 0x5300)
+ return -ENODEV;
+
@ -245,8 +250,14 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+
+ bcma_hcd_init_chip(dev);
+
+ /* In AI chips EHCI is addrspace 0, OHCI is 1 */
+ ohci_addr = dev->addr1;
+ if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749)
+ && chipinfo->rev == 0)
+ ohci_addr = 0x18009000;
+
+ usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, "ohci-platform",
+ dev->addr1);
+ ohci_addr);
+ if (IS_ERR(usb_dev->ohci_dev)) {
+ err = PTR_ERR(usb_dev->ohci_dev);
+ goto err_free_usb_dev;
@ -257,7 +268,6 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ 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);
@ -270,7 +280,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ return err;
+}
+
+static void bcma_hcd_remove(struct bcma_device *dev)
+static void __devexit bcma_hcd_remove(struct bcma_device *dev)
+{
+ struct bcma_hcd_device *usb_dev;
+ struct platform_device *ohci_dev;
@ -319,7 +329,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+#define bcma_hcd_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct bcma_device_id bcma_hcd_table[] = {
+static const struct bcma_device_id bcma_hcd_table[] __devinitconst = {
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
+ BCMA_CORETABLE_END
+};
@ -329,7 +339,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ .name = KBUILD_MODNAME,
+ .id_table = bcma_hcd_table,
+ .probe = bcma_hcd_probe,
+ .remove = bcma_hcd_remove,
+ .remove = __devexit_p(bcma_hcd_remove),
+ .shutdown = bcma_hcd_shutdown,
+ .suspend = bcma_hcd_suspend,
+ .resume = bcma_hcd_resume,

98
target/linux/brcm47xx/patches-3.0/0033-USB-Add-driver-for-the-ssb-bus.patch
View file

@ -1,7 +1,7 @@
From b61e70ad9080a6dbd3731917ec21dbcbb9d382a2 Mon Sep 17 00:00:00 2001
From 0f91c21de577d2d9f1fd164ca686d9a4ff0e2c8b 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
Subject: [PATCH 20/26] 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
@ -19,8 +19,8 @@ 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(-)
drivers/usb/host/ssb-hcd.c | 272 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 285 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/ssb-hcd.c
--- a/drivers/usb/host/Kconfig
@ -50,7 +50,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o
--- /dev/null
+++ b/drivers/usb/host/ssb-hcd.c
@@ -0,0 +1,268 @@
@@ -0,0 +1,272 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom USB-core driver (SSB bus glue)
@ -89,16 +89,23 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ u32 enable_flags;
+};
+
+/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
+static u32 ssb_hcd_init_chip(struct ssb_device *dev)
+static void __devinit ssb_hcd_5354wa(struct ssb_device *dev)
+{
+ u32 tmp, flags = 0;
+#ifdef CONFIG_SSB_DRIVER_MIPS
+ /* Work around for 5354 failures */
+ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
+ /* Change syn01 reg */
+ ssb_write32(dev, 0x894, 0x00fe00fe);
+
+ 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) {
+ /* Change syn03 reg */
+ ssb_write32(dev, 0x89c, ssb_read32(dev, 0x89c) | 0x1);
+ }
+#endif
+}
+
+static void __devinit ssb_hcd_usb20wa(struct ssb_device *dev)
+{
+ if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+ /*
+ * USB 2.0 special considerations:
+ *
@ -106,51 +113,46 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ * 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);
+ ssb_write32(dev, 0x400, ssb_read32(dev, 0x400) & ~8);
+ 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);
+ ssb_write32(dev, 0x304, ssb_read32(dev, 0x304) & ~0x100);
+ 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);
+ ssb_hcd_5354wa(dev);
+ }
+}
+
+ /* Change syn03 reg */
+ tmp = ssb_read32(dev, 0x89c);
+ tmp |= 0x1;
+ ssb_write32(dev, 0x89c, tmp);
+ }
+ } else
+ ssb_device_enable(dev, 0);
+/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
+static u32 __devinit ssb_hcd_init_chip(struct ssb_device *dev)
+{
+ u32 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);
+
+ ssb_hcd_usb20wa(dev);
+
+ return flags;
+}
+
+static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev,
+ char *name, u32 addr,
+ u32 len)
+static struct platform_device * __devinit
+ssb_hcd_create_pdev(struct ssb_device *dev, char *name, u32 addr, u32 len)
+{
+ struct platform_device *hci_dev;
+ struct resource *hci_res;
+ struct resource hci_res[2];
+ int ret = -ENOMEM;
+
+ hci_res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ if (!hci_res)
+ return ERR_PTR(-ENOMEM);
+ memset(hci_res, 0, sizeof(hci_res));
+
+ hci_res[0].start = addr;
+ hci_res[0].end = hci_res[0].start + len - 1;
@ -173,7 +175,6 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ ret = platform_device_add(hci_dev);
+ if (ret) {
+err_alloc:
+ kfree(hci_res);
+ platform_device_put(hci_dev);
+ return ERR_PTR(ret);
+ }
@ -181,7 +182,8 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ return hci_dev;
+}
+
+static int ssb_hcd_probe(struct ssb_device *dev, const struct ssb_device_id *id)
+static int __devinit ssb_hcd_probe(struct ssb_device *dev,
+ const struct ssb_device_id *id)
+{
+ int err, tmp;
+ int start, len;
@ -241,7 +243,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ return err;
+}
+
+static void ssb_hcd_remove(struct ssb_device *dev)
+static void __devexit ssb_hcd_remove(struct ssb_device *dev)
+{
+ struct ssb_hcd_device *usb_dev;
+ struct platform_device *ohci_dev;
@ -264,7 +266,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ ssb_device_disable(dev, 0);
+}
+
+static void ssb_hcd_shutdown(struct ssb_device *dev)
+static void __devexit ssb_hcd_shutdown(struct ssb_device *dev)
+{
+ ssb_device_disable(dev, 0);
+}
@ -280,6 +282,8 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+
+static int ssb_hcd_resume(struct ssb_device *dev)
+{
+ struct ssb_hcd_device *usb_dev = ssb_get_drvdata(dev);
+
+ ssb_device_enable(dev, usb_dev->enable_flags);
+
+ return 0;
@ -290,7 +294,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+#define ssb_hcd_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct ssb_device_id ssb_hcd_table[] = {
+static const struct ssb_device_id ssb_hcd_table[] __devinitconst = {
+ 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),
@ -302,7 +306,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ .name = KBUILD_MODNAME,
+ .id_table = ssb_hcd_table,
+ .probe = ssb_hcd_probe,
+ .remove = ssb_hcd_remove,
+ .remove = __devexit_p(ssb_hcd_remove),
+ .shutdown = ssb_hcd_shutdown,
+ .suspend = ssb_hcd_suspend,
+ .resume = ssb_hcd_resume,