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-rw-r--r--src/drivers/usb/Makefile.inc1
-rw-r--r--src/drivers/usb/ehci_debug.c81
-rw-r--r--src/drivers/usb/pci_ehci.c4
-rw-r--r--src/include/console/usb.h3
4 files changed, 55 insertions, 34 deletions
diff --git a/src/drivers/usb/Makefile.inc b/src/drivers/usb/Makefile.inc
index ff9a12462b..6c46f045a5 100644
--- a/src/drivers/usb/Makefile.inc
+++ b/src/drivers/usb/Makefile.inc
@@ -1,3 +1,4 @@
romstage-$(CONFIG_USBDEBUG_IN_ROMSTAGE) += ehci_debug.c pci_ehci.c console.c gadget.c
+postcar-$(CONFIG_USBDEBUG_IN_ROMSTAGE) += ehci_debug.c console.c
ramstage-$(CONFIG_USBDEBUG) += ehci_debug.c pci_ehci.c console.c gadget.c
diff --git a/src/drivers/usb/ehci_debug.c b/src/drivers/usb/ehci_debug.c
index 9491a8ffbe..fcc52230c9 100644
--- a/src/drivers/usb/ehci_debug.c
+++ b/src/drivers/usb/ehci_debug.c
@@ -599,13 +599,11 @@ next_debug_port:
return -10;
}
-#if IS_ENABLED(CONFIG_DEBUG_USBDEBUG)
static int dbgp_enabled(void)
{
struct dbgp_pipe *globals = &dbgp_ehci_info()->ep_pipe[DBGP_SETUP_EP0];
return (globals->status & DBGP_EP_ENABLED);
}
-#endif
int dbgp_try_get(struct dbgp_pipe *pipe)
{
@@ -624,7 +622,7 @@ void dbgp_put(struct dbgp_pipe *pipe)
pipe->status &= ~DBGP_EP_BUSY;
}
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
+#if ENV_RAMSTAGE
void usbdebug_re_enable(unsigned ehci_base)
{
struct ehci_debug_info *dbg_info = dbgp_ehci_info();
@@ -650,36 +648,55 @@ void usbdebug_disable(void)
#endif
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
-static int get_usbdebug_from_cbmem(struct ehci_debug_info *info)
+static int usbdebug_hw_init(void)
{
- struct ehci_debug_info *dbg_info_cbmem;
+ struct ehci_debug_info *dbg_info = dbgp_ehci_info();
+ unsigned int ehci_base, dbg_offset;
- dbg_info_cbmem = cbmem_find(CBMEM_ID_EHCI_DEBUG);
- if (dbg_info_cbmem == NULL)
+ if (ehci_debug_hw_enable(&ehci_base, &dbg_offset))
return -1;
-
- memcpy(info, dbg_info_cbmem, sizeof (*info));
- printk(BIOS_DEBUG, "EHCI debug port found in CBMEM.\n");
-
- return 0;
+ return usbdebug_init_(ehci_base, dbg_offset, dbg_info);
}
-#elif defined(__PRE_RAM__)
static void migrate_ehci_debug(int is_recovery)
{
- struct ehci_debug_info *dbg_info = dbgp_ehci_info();
struct ehci_debug_info *dbg_info_cbmem;
-
- dbg_info_cbmem = cbmem_add(CBMEM_ID_EHCI_DEBUG, sizeof(*dbg_info));
- if (dbg_info_cbmem == NULL)
+ int rv;
+
+ if (ENV_ROMSTAGE) {
+ /* Move state from CAR to CBMEM. */
+ struct ehci_debug_info *dbg_info = dbgp_ehci_info();
+ dbg_info_cbmem = cbmem_add(CBMEM_ID_EHCI_DEBUG,
+ sizeof(*dbg_info));
+ if (dbg_info_cbmem == NULL)
+ return;
+ memcpy(dbg_info_cbmem, dbg_info, sizeof(*dbg_info));
+ car_set_var(glob_dbg_info_p, dbg_info_cbmem);
return;
+ }
+
+ if (IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE)) {
+ /* Use state in CBMEM. */
+ dbg_info_cbmem = cbmem_find(CBMEM_ID_EHCI_DEBUG);
+ if (dbg_info_cbmem)
+ car_set_var(glob_dbg_info_p, dbg_info_cbmem);
+ }
+
+ /* Redo full init in ramstage if state claims we
+ * are still not enabled. Should never happen. */
+ rv = dbgp_enabled() ? 0 : -1;
+ if (!ENV_POSTCAR && rv < 0)
+ rv = usbdebug_hw_init();
- memcpy(dbg_info_cbmem, dbg_info, sizeof(*dbg_info));
- car_set_var(glob_dbg_info_p, dbg_info_cbmem);
+ if (rv < 0)
+ printk(BIOS_DEBUG, "usbdebug: Failed hardware init\n");
+ else
+ printk(BIOS_DEBUG, "usbdebug: " ENV_STRING " starting...\n");
}
+
ROMSTAGE_CBMEM_INIT_HOOK(migrate_ehci_debug);
-#endif
+POSTCAR_CBMEM_INIT_HOOK(migrate_ehci_debug);
+RAMSTAGE_CBMEM_INIT_HOOK(migrate_ehci_debug);
int dbgp_ep_is_active(struct dbgp_pipe *pipe)
{
@@ -696,16 +713,18 @@ struct dbgp_pipe *dbgp_console_input(void)
return &dbgp_ehci_info()->ep_pipe[DBGP_CONSOLE_EPIN];
}
-int usbdebug_init(void)
+void usbdebug_init(void)
{
- struct ehci_debug_info *dbg_info = dbgp_ehci_info();
- unsigned int ehci_base, dbg_offset;
+ /* USB console init is done early in romstage, yet delayed to
+ * CBMEM_INIT_HOOKs for postcar and ramstage as we recover state
+ * from CBMEM.
+ */
+ if (IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE) && ENV_ROMSTAGE)
+ usbdebug_hw_init();
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
- if (!get_usbdebug_from_cbmem(dbg_info))
- return 0;
-#endif
- if (ehci_debug_hw_enable(&ehci_base, &dbg_offset))
- return -1;
- return usbdebug_init_(ehci_base, dbg_offset, dbg_info);
+ /* USB console init is done early in ramstage if it was
+ * not done in romstage, this does not require CBMEM.
+ */
+ if (!IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE) && ENV_RAMSTAGE)
+ usbdebug_hw_init();
}
diff --git a/src/drivers/usb/pci_ehci.c b/src/drivers/usb/pci_ehci.c
index 73c709cdd8..3bdeeebadc 100644
--- a/src/drivers/usb/pci_ehci.c
+++ b/src/drivers/usb/pci_ehci.c
@@ -25,7 +25,7 @@
#include "ehci_debug.h"
#include "ehci.h"
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
+#if ENV_RAMSTAGE
static struct device_operations *ehci_drv_ops;
static struct device_operations ehci_dbg_ops;
#endif
@@ -81,7 +81,7 @@ void ehci_debug_select_port(unsigned int port)
pci_ehci_dbg_set_port(dbg_dev, port);
}
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
+#if ENV_RAMSTAGE
static void pci_ehci_set_resources(struct device *dev)
{
struct resource *res;
diff --git a/src/include/console/usb.h b/src/include/console/usb.h
index c67144d039..78956d7936 100644
--- a/src/include/console/usb.h
+++ b/src/include/console/usb.h
@@ -20,7 +20,7 @@
#include <rules.h>
#include <stdint.h>
-int usbdebug_init(void);
+void usbdebug_init(void);
void usb_tx_byte(int idx, unsigned char data);
void usb_tx_flush(int idx);
@@ -29,6 +29,7 @@ int usb_can_rx_byte(int idx);
#define __CONSOLE_USB_ENABLE__ (IS_ENABLED(CONFIG_CONSOLE_USB) && \
((ENV_ROMSTAGE && IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE)) || \
+ (ENV_POSTCAR && IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE)) || \
ENV_RAMSTAGE))
#define USB_PIPE_FOR_CONSOLE 0
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 13:30:37 +0000