diff options
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 64 |
1 files changed, 51 insertions, 13 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 502a7e6fef4..74dcf49bd01 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -114,6 +114,9 @@ MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us\n"); #define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT) +/* for ASPM quirk of ISOC on AMD SB800 */ +static struct pci_dev *amd_nb_dev; + /*-------------------------------------------------------------------------*/ #include "ehci.h" @@ -529,6 +532,11 @@ static void ehci_stop (struct usb_hcd *hcd) spin_unlock_irq (&ehci->lock); ehci_mem_cleanup (ehci); + if (amd_nb_dev) { + pci_dev_put(amd_nb_dev); + amd_nb_dev = NULL; + } + #ifdef EHCI_STATS ehci_dbg (ehci, "irq normal %ld err %ld reclaim %ld (lost %ld)\n", ehci->stats.normal, ehci->stats.error, ehci->stats.reclaim, @@ -564,6 +572,8 @@ static int ehci_init(struct usb_hcd *hcd) ehci->iaa_watchdog.function = ehci_iaa_watchdog; ehci->iaa_watchdog.data = (unsigned long) ehci; + hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); + /* * hw default: 1K periodic list heads, one per frame. * periodic_size can shrink by USBCMD update if hcc_params allows. @@ -571,11 +581,20 @@ static int ehci_init(struct usb_hcd *hcd) ehci->periodic_size = DEFAULT_I_TDPS; INIT_LIST_HEAD(&ehci->cached_itd_list); INIT_LIST_HEAD(&ehci->cached_sitd_list); + + if (HCC_PGM_FRAMELISTLEN(hcc_params)) { + /* periodic schedule size can be smaller than default */ + switch (EHCI_TUNE_FLS) { + case 0: ehci->periodic_size = 1024; break; + case 1: ehci->periodic_size = 512; break; + case 2: ehci->periodic_size = 256; break; + default: BUG(); + } + } if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0) return retval; /* controllers may cache some of the periodic schedule ... */ - hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); if (HCC_ISOC_CACHE(hcc_params)) // full frame cache ehci->i_thresh = 2 + 8; else // N microframes cached @@ -629,12 +648,6 @@ static int ehci_init(struct usb_hcd *hcd) /* periodic schedule size can be smaller than default */ temp &= ~(3 << 2); temp |= (EHCI_TUNE_FLS << 2); - switch (EHCI_TUNE_FLS) { - case 0: ehci->periodic_size = 1024; break; - case 1: ehci->periodic_size = 512; break; - case 2: ehci->periodic_size = 256; break; - default: BUG(); - } } if (HCC_LPM(hcc_params)) { /* support link power management EHCI 1.1 addendum */ @@ -1063,10 +1076,11 @@ rescan: tmp && tmp != qh; tmp = tmp->qh_next.qh) continue; - /* periodic qh self-unlinks on empty */ - if (!tmp) - goto nogood; - unlink_async (ehci, qh); + /* periodic qh self-unlinks on empty, and a COMPLETING qh + * may already be unlinked. + */ + if (tmp) + unlink_async(ehci, qh); /* FALL THROUGH */ case QH_STATE_UNLINK: /* wait for hw to finish? */ case QH_STATE_UNLINK_WAIT: @@ -1083,7 +1097,6 @@ idle_timeout: } /* else FALL THROUGH */ default: -nogood: /* caller was supposed to have unlinked any requests; * that's not our job. just leak this memory. */ @@ -1166,12 +1179,17 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_mxc_driver #endif +#ifdef CONFIG_CPU_SUBTYPE_SH7786 +#include "ehci-sh.c" +#define PLATFORM_DRIVER ehci_hcd_sh_driver +#endif + #ifdef CONFIG_SOC_AU1200 #include "ehci-au1xxx.c" #define PLATFORM_DRIVER ehci_hcd_au1xxx_driver #endif -#ifdef CONFIG_ARCH_OMAP3 +#ifdef CONFIG_USB_EHCI_HCD_OMAP #include "ehci-omap.c" #define PLATFORM_DRIVER ehci_hcd_omap_driver #endif @@ -1216,6 +1234,26 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_octeon_driver #endif +#ifdef CONFIG_USB_CNS3XXX_EHCI +#include "ehci-cns3xxx.c" +#define PLATFORM_DRIVER cns3xxx_ehci_driver +#endif + +#ifdef CONFIG_ARCH_VT8500 +#include "ehci-vt8500.c" +#define PLATFORM_DRIVER vt8500_ehci_driver +#endif + +#ifdef CONFIG_PLAT_SPEAR +#include "ehci-spear.c" +#define PLATFORM_DRIVER spear_ehci_hcd_driver +#endif + +#ifdef CONFIG_USB_EHCI_MSM +#include "ehci-msm.c" +#define PLATFORM_DRIVER ehci_msm_driver +#endif + #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \ !defined(XILINX_OF_PLATFORM_DRIVER) |