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usbdebug: Refactor on EHCI memory space 

We only reference with ehci_caps and ehci_regs during initialisation,
no need to carry those around.

When EHCI BAR is relocated during PCI allocation, record the changed
address even if usbdebug is not enabled. Use the DBGP_EP_VALID flags
to determine if endpoints have been configured or not.

Change-Id: Idfd52edf7c2fc25b1b225985462ac488264e4c6d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7207
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins)
This commit is contained in:
Kyösti Mälkki 2014-10-27 15:07:20 +02:00
parent 618d179bfe
commit 7bb4f86d07
1 changed files with 13 additions and 17 deletions
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30
src/drivers/usb/ehci_debug.c
View File

@ -37,8 +37,7 @@
#define DBGP_CONSOLE_EPIN 2
struct ehci_debug_info {
void *ehci_caps;
void *ehci_regs;
void *ehci_base;
void *ehci_debug;
struct dbgp_pipe ep_pipe[DBGP_MAX_ENDPOINTS];
@ -562,7 +561,6 @@ static int usbdebug_init_(unsigned ehci_bar, unsigned offset, struct ehci_debug_
{
struct ehci_caps *ehci_caps;
struct ehci_regs *ehci_regs;
struct ehci_dbg_port *ehci_debug;
struct usb_debug_descriptor dbgp_desc;
u32 cmd, ctrl, status, portsc, hcs_params;
@ -573,14 +571,18 @@ static int usbdebug_init_(unsigned ehci_bar, unsigned offset, struct ehci_debug_
int port_map_tried;
int playtimes = 3;
/* Keep all endpoints disabled before any printk() call. */
memset(info, 0, sizeof (*info));
info->ehci_base = (void *)ehci_bar;
info->ehci_debug = (void *)(ehci_bar + offset);
dprintk(BIOS_INFO, "ehci_bar: 0x%x debug_offset 0x%x\n", ehci_bar, offset);
ehci_caps = (struct ehci_caps *)ehci_bar;
ehci_regs = (struct ehci_regs *)(ehci_bar +
HC_LENGTH(read32((unsigned long)&ehci_caps->hc_capbase)));
ehci_debug = (struct ehci_dbg_port *)(ehci_bar + offset);
info->ehci_debug = (void *)0;
memset(&info->ep_pipe, 0, sizeof (info->ep_pipe));
struct ehci_dbg_port *ehci_debug = info->ehci_debug;
if (CONFIG_USBDEBUG_DEFAULT_PORT > 0)
ehci_debug_select_port(CONFIG_USBDEBUG_DEFAULT_PORT);
@ -682,6 +684,7 @@ try_next_port:
}
dprintk(BIOS_INFO, "EHCI done waiting for port.\n");
/* Enable the debug port */
ctrl = read32((unsigned long)&ehci_debug->control);
ctrl |= DBGP_CLAIM;
@ -792,10 +795,6 @@ small_write:
}
dprintk(BIOS_INFO, "Test write done\n");
info->ehci_caps = ehci_caps;
info->ehci_regs = ehci_regs;
info->ehci_debug = ehci_debug;
info->ep_pipe[DBGP_SETUP_EP0].status |= DBGP_EP_ENABLED | DBGP_EP_VALID;
info->ep_pipe[DBGP_CONSOLE_EPOUT].status |= DBGP_EP_ENABLED | DBGP_EP_VALID;
info->ep_pipe[DBGP_CONSOLE_EPIN].status |= DBGP_EP_ENABLED | DBGP_EP_VALID;
@ -861,16 +860,13 @@ void usbdebug_re_enable(unsigned ehci_base)
unsigned diff;
int i;
if (!dbg_info->ehci_debug)
return;
diff = (unsigned)dbg_info->ehci_caps - ehci_base;
dbg_info->ehci_regs -= diff;
diff = (unsigned)dbg_info->ehci_base - ehci_base;
dbg_info->ehci_debug -= diff;
dbg_info->ehci_caps = (void*)ehci_base;
dbg_info->ehci_base = (void*)ehci_base;
for (i=0; i<DBGP_MAX_ENDPOINTS; i++)
dbg_info->ep_pipe[i].status |= DBGP_EP_ENABLED;
if (dbg_info->ep_pipe[i].status & DBGP_EP_VALID)
dbg_info->ep_pipe[i].status |= DBGP_EP_ENABLED;
}
void usbdebug_disable(void)