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x86, earlyprintk: Add hsu early console for Intel Medfield platform

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Intel Medfield platform has a high speed UART device, which
could act as a early console. To enable early printk of HSU
console, simply add "earlyprintk=hsu" in kernel command line.

Currently we put the code in the early_printk_mrst.c as it is
also for Intel MID platforms like the mrst early console

Signed-off-by: Feng Tang <feng.tang@intel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: greg@kroah.com
LKML-Reference: <1284361736-23011-5-git-send-email-feng.tang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Feng Tang
2010-09-13 15:08:56 +08:00
committed by Ingo Molnar
parent c20b5c3318
commit 4d033556f1
3 changed files with 97 additions and 1 deletions
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3
arch/x86/include/asm/mrst.h
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@ -47,4 +47,7 @@ extern enum mrst_timer_options mrst_timer_options;
extern struct console early_mrst_console;
extern void mrst_early_console_init(void);
extern struct console early_hsu_console;
extern void hsu_early_console_init(void);
#endif /* _ASM_X86_MRST_H */