openwrtv4/target/linux/mcs814x/patches-3.18/013-ohci_workarounds.patch
Koen Vandeputte 548182bc6d kernel: bump 3.18 to 3.18.119
Refreshed all patches.

Compile-tested on: adm5120, adm8668, au1000, mcs814x, ppc40x, ppc44x, xburst
Runtime-tested on: none

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-08-20 13:03:23 +02:00

64 lines
1.9 KiB
Diff

--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -122,7 +122,7 @@ struct td {
/* PSW is only for ISO. Only 1 PSW entry is used, but on
* big-endian PPC hardware that's the second entry.
*/
-#define MAXPSW 2
+#define MAXPSW 8
__hc16 hwPSW [MAXPSW];
/* rest are purely for the driver's use */
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -441,6 +441,7 @@ static int ohci_init (struct ohci_hcd *o
{
int ret;
struct usb_hcd *hcd = ohci_to_hcd(ohci);
+ u32 hcca_area;
/* Accept arbitrarily long scatter-gather lists */
if (!(hcd->driver->flags & HCD_LOCAL_MEM))
@@ -502,11 +503,13 @@ static int ohci_init (struct ohci_hcd *o
(unsigned long) ohci);
set_timer_slack(&ohci->io_watchdog, msecs_to_jiffies(20));
- ohci->hcca = dma_alloc_coherent (hcd->self.controller,
- sizeof(*ohci->hcca), &ohci->hcca_dma, GFP_KERNEL);
+ hcca_area = ohci_readl(ohci, &ohci->regs->hcca);
+ ohci->hcca = ioremap_nocache(hcca_area, sizeof *ohci->hcca);
if (!ohci->hcca)
return -ENOMEM;
+ ohci->hcca_dma = hcca_area;
+
if ((ret = ohci_mem_init (ohci)) < 0)
ohci_stop (hcd);
else {
@@ -524,6 +527,7 @@ static int ohci_init (struct ohci_hcd *o
*/
static int ohci_run (struct ohci_hcd *ohci)
{
+ int i = 0;
u32 mask, val;
int first = ohci->fminterval == 0;
struct usb_hcd *hcd = ohci_to_hcd(ohci);
@@ -574,6 +578,8 @@ static int ohci_run (struct ohci_hcd *oh
msleep(val);
memset (ohci->hcca, 0, sizeof (struct ohci_hcca));
+ for (i = 0; i < NUM_INTS; i++)
+ ohci->hcca->int_table[i] = 0;
/* 2msec timelimit here means no irqs/preempt */
spin_lock_irq (&ohci->lock);
@@ -985,9 +991,6 @@ static void ohci_stop (struct usb_hcd *h
remove_debug_files (ohci);
ohci_mem_cleanup (ohci);
if (ohci->hcca) {
- dma_free_coherent (hcd->self.controller,
- sizeof *ohci->hcca,
- ohci->hcca, ohci->hcca_dma);
ohci->hcca = NULL;
ohci->hcca_dma = 0;
}