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usbdebug: Add option for verbose logging of connection 

Add option to log changes in USB 2.0 EHCI debug port connection.
For romstage move usbdebug as the last initialised console so one
actually can see these messages.

Init order of consoles in ramstage is undetermined and unchanged.

Change-Id: I3aceec8a93064bd952886839569e9f5beb6c5720
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3387
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Kyösti Mälkki 2013-06-06 10:46:37 +03:00
parent a9bbdd39e4
commit 3be80cce29
3 changed files with 15 additions and 12 deletions
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10
src/Kconfig
View File

@ -937,6 +937,16 @@ config DEBUG_SPI_FLASH
help
This option enables additional SPI flash related debug messages.
config DEBUG_USBDEBUG
bool "Output verbose USB 2.0 EHCI debug dongle messages"
default n
depends on USBDEBUG
help
This option enables additional USB 2.0 debug dongle related messages.
Select this to debug the connection of usbdebug dongle. Note that
you need some other working console to receive the messages.
if SOUTHBRIDGE_INTEL_BD82X6X && DEFAULT_CONSOLE_LOGLEVEL_8
# Only visible with the right southbridge and loglevel.
config DEBUG_INTEL_ME

6
src/console/console.c
View File

@ -104,9 +104,6 @@ void console_init(void)
#if defined(__BOOT_BLOCK__) && CONFIG_BOOTBLOCK_CONSOLE || \
!defined(__BOOT_BLOCK__) && CONFIG_EARLY_CONSOLE
#if CONFIG_USBDEBUG
usbdebug_init();
#endif
#if CONFIG_CONSOLE_SERIAL
uart_init();
#endif
@ -122,6 +119,9 @@ void console_init(void)
#if CONFIG_SPKMODEM
spkmodem_init();
#endif
#if CONFIG_USBDEBUG
usbdebug_init();
#endif
static const char console_test[] =
"\n\ncoreboot-"

9
src/lib/usbdebug.c
View File

@ -57,19 +57,12 @@ struct ehci_debug_info {
struct dbgp_pipe ep_pipe[DBGP_MAX_ENDPOINTS];
};
/* Set this to 1 to debug the start-up of EHCI debug port hardware. You need
* to modify console_init() to initialise some other console before usbdebug
* to receive the printk lines from here.
* There will be no real usbdebug console output while DBGP_DEBUG is set.
*/
#define DBGP_DEBUG 0
#if DBGP_DEBUG
#if CONFIG_DEBUG_USBDEBUG
# define dbgp_printk(fmt_arg...) printk(BIOS_DEBUG, fmt_arg)
#else
# define dbgp_printk(fmt_arg...) do {} while(0)
#endif
#define USB_DEBUG_DEVNUM 127
#define DBGP_DATA_TOGGLE 0x8800