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path: root/arch/x86/boot/tty.c
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2010-08-02x86, setup: reorganize the early console setupYinghai Lu1-135/+1
Separate early_serial_console from tty.c This allows for reuse of early_serial_console.c/string.c/printf.c/cmdline.c in boot/compressed/. -v2: according to hpa, don't include string.c etc -v3: compressed/misc.c must have early_serial_base as static, so move it back to tty.c for setup code Signed-off-by: Yinghai Lu <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2010-07-14x86, setup: Only set early_serial_base after port is initializedYinghai Lu1-30/+33
putchar is using early_serial_base to check if port is initialized. So we only assign it after early_serial_init() is called, in case we need use VGA to debug early serial console. Also add display for port addr and baud. -v2: update to current tip Acked-by: Pekka Enberg <[email protected]> Signed-off-by: Yinghai Lu <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2010-07-13x86, setup: Make the setup code also accept console=uart8250Yinghai Lu1-1/+58
Make the boot code also accept the console=uart8250,io,0x2f8,115200n form of early console. Also add back simple_guess_base(), otherwise those simple_strtoull(,,0) are not going to work. Signed-off-by: Yinghai Lu <[email protected]> LKML-Reference: <[email protected]> Acked-by: Pekka Enberg <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2010-07-12x86, setup: Early-boot serial I/O supportPekka Enberg1-6/+105
This patch adds serial I/O support to the real-mode setup (very early boot) printf(). It's useful for debugging boot code when running Linux under KVM, for example. The actual code was lifted from early printk. Cc: Cyrill Gorcunov <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Yinghai Lu <[email protected]> Signed-off-by: Pekka Enberg <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2009-04-09x86, setup: "glove box" BIOS interrupts in the core boot codeH. Peter Anvin1-24/+28
Impact: BIOS proofing "Glove box" off BIOS interrupts in the core boot code. LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2008-11-25x86: use limited register constraint for setnzSteven Rostedt1-1/+1
Impact: build fix with certain compilers GCC can decide to use %dil when "r" is used, which is not valid for setnz. This bug was brought out by Stephen Rothwell's merging of the branch tracer into linux-next. [ Thanks to Uros Bizjak for recommending 'q' over 'Q' ] Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-04-19x86: remove pointless commentsWANG Cong1-2/+0
Remove old comments that include the old arch/i386 directory. Signed-off-by: WANG Cong <[email protected]> Acked-by: H. Peter Anvin <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2007-10-11i386: move bootThomas Gleixner1-0/+112
Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
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