Root/target/linux/mcs814x/patches-3.3/013-ohci_workarounds.patch

1--- a/drivers/usb/host/ohci.h
2+++ b/drivers/usb/host/ohci.h
3@@ -114,7 +114,7 @@ struct td {
4     /* PSW is only for ISO. Only 1 PSW entry is used, but on
5      * big-endian PPC hardware that's the second entry.
6      */
7-#define MAXPSW 2
8+#define MAXPSW 8
9     __hc16 hwPSW [MAXPSW];
10 
11     /* rest are purely for the driver's use */
12--- a/drivers/usb/host/ohci-hcd.c
13+++ b/drivers/usb/host/ohci-hcd.c
14@@ -497,6 +497,7 @@ static int ohci_init (struct ohci_hcd *o
15 {
16     int ret;
17     struct usb_hcd *hcd = ohci_to_hcd(ohci);
18+ u32 hcca_area;
19 
20     if (distrust_firmware)
21         ohci->flags |= OHCI_QUIRK_HUB_POWER;
22@@ -550,11 +551,13 @@ static int ohci_init (struct ohci_hcd *o
23     if (ohci->hcca)
24         return 0;
25 
26- ohci->hcca = dma_alloc_coherent (hcd->self.controller,
27- sizeof *ohci->hcca, &ohci->hcca_dma, 0);
28+ hcca_area = ohci_readl(ohci, &ohci->regs->hcca);
29+ ohci->hcca = ioremap_nocache(hcca_area, sizeof *ohci->hcca);
30     if (!ohci->hcca)
31         return -ENOMEM;
32 
33+ ohci->hcca_dma = hcca_area;
34+
35     if ((ret = ohci_mem_init (ohci)) < 0)
36         ohci_stop (hcd);
37     else {
38@@ -572,6 +575,7 @@ static int ohci_init (struct ohci_hcd *o
39  */
40 static int ohci_run (struct ohci_hcd *ohci)
41 {
42+ int i = 0;
43     u32 mask, val;
44     int first = ohci->fminterval == 0;
45     struct usb_hcd *hcd = ohci_to_hcd(ohci);
46@@ -622,6 +626,8 @@ static int ohci_run (struct ohci_hcd *oh
47     msleep(val);
48 
49     memset (ohci->hcca, 0, sizeof (struct ohci_hcca));
50+ for (i = 0; i < NUM_INTS; i++)
51+ ohci->hcca->int_table[i] = 0;
52 
53     /* 2msec timelimit here means no irqs/preempt */
54     spin_lock_irq (&ohci->lock);
55@@ -909,9 +915,6 @@ static void ohci_stop (struct usb_hcd *h
56     remove_debug_files (ohci);
57     ohci_mem_cleanup (ohci);
58     if (ohci->hcca) {
59- dma_free_coherent (hcd->self.controller,
60- sizeof *ohci->hcca,
61- ohci->hcca, ohci->hcca_dma);
62         ohci->hcca = NULL;
63         ohci->hcca_dma = 0;
64     }
65

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