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| author | Simon Glass <sjg@chromium.org> | 2016-03-11 22:06:51 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-03-17 10:27:24 +0800 |
| commit | e4d6ab0c2cb8456f80d0ee4e123a34029d5a5c41 (patch) | |
| tree | 5be75f2ce6cb4cf73183817fe8b301032c8f775d /drivers/serial | |
| parent | 8226a3e99f1c1e7ded648721d1e16118453761e5 (diff) | |
| download | u-boot-imx-e4d6ab0c2cb8456f80d0ee4e123a34029d5a5c41.zip u-boot-imx-e4d6ab0c2cb8456f80d0ee4e123a34029d5a5c41.tar.gz u-boot-imx-e4d6ab0c2cb8456f80d0ee4e123a34029d5a5c41.tar.bz2 | |
x86: Allow use of serial soon after relocation
At present on x86 machines with use cache-as-RAM, the memory goes away just
before board_init_r() is called. This means that serial drivers are
no-longer unavailable, until initr_dm() it called, etc.
Any attempt to use printf() within this period will cause a hang.
To fix this, mark the serial devices as 'unavailable' when it is no-longer
available. Bring it back when serial_initialize() is called. This means that
the debug UART will be used instead for this period.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial-uclass.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c index f154eb1..0ce5c44 100644 --- a/drivers/serial/serial-uclass.c +++ b/drivers/serial/serial-uclass.c @@ -115,7 +115,7 @@ int serial_init(void) /* Called after relocation */ void serial_initialize(void) { - serial_find_console_or_panic(); + serial_init(); } static void _serial_putc(struct udevice *dev, char ch) |