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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-12-31 15:22:34 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-01-13 13:01:42 +0000 |
| commit | 66277952893b27154c7e8cfd7db3822342946c45 (patch) | |
| tree | a86df9f81eab777cd730a680af1cb32e02ff168b | |
| parent | 67618dd25001e74d525997d2670102f2e5a631e2 (diff) | |
console: Add Kconfig debug option DEBUG_CONSOLE_INIT
Under normal circumstances no printk() goes through until
console_hw_init() has completed. This is wanted behaviour,
except when you need to debug the setup of one of consoles.
Change-Id: Ifc2bb22bf930009ee229d4461f512ada3018307b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30558
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
| -rw-r--r-- | src/Kconfig | 12 | ||||
| -rw-r--r-- | src/console/init.c | 3 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/Kconfig b/src/Kconfig index 87b088f893..cba48af8e5 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -782,6 +782,18 @@ config DEBUG_ACPI If unsure, say N. +config DEBUG_CONSOLE_INIT + bool "Debug console initialisation code" + default n + help + With this option printk()'s are attempted before console hardware + initialisation has been completed. Your mileage may vary. + + Typically you will need to modify source in console_hw_init() such + that a working console appears before the one you want to debug. + + If unsure, say N. + # Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional # printk(BIOS_DEBUG, ...) calls. config REALMODE_DEBUG diff --git a/src/console/init.c b/src/console/init.c index f35dd51beb..0bafdbe3f0 100644 --- a/src/console/init.c +++ b/src/console/init.c @@ -72,6 +72,9 @@ asmlinkage void console_init(void) { init_log_level(); + if (IS_ENABLED(CONFIG_DEBUG_CONSOLE_INIT)) + car_set_var(console_inited, 1); + #if IS_ENABLED(CONFIG_EARLY_PCI_BRIDGE) if (!ENV_SMM && !ENV_RAMSTAGE) pci_early_bridge_init(); |