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omap: introduce OMAP_LL_DEBUG_NONE DEBUG_LL config 

Zoom2/Zoom3 kind of boards do not use omap uarts for console.
These use external debug board for console.

So these boards should not have "Uncompressing Kernel...."
log put on omap uarts.

By interoducing OMAP_LL_DEBUG_NONE option,
unnecessary writes to omap uarts is avoided.

In future, the DEBUG_LL interface will be enhanced
to use external debug board.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
vikram pandita 2009-11-22 10:10:49 -08:00 committed by Tony Lindgren
parent 9d30b99f35
commit d9f5007491
2 changed files with 9 additions and 2 deletions
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5
arch/arm/plat-omap/Kconfig
View File

@ -165,7 +165,7 @@ config OMAP_DM_TIMER
choice
prompt "Low-level debug console UART"
depends on ARCH_OMAP
default OMAP_LL_DEBUG_UART1
default OMAP_LL_DEBUG_NONE
config OMAP_LL_DEBUG_UART1
bool "UART1"
@ -176,6 +176,9 @@ config OMAP_LL_DEBUG_UART2
config OMAP_LL_DEBUG_UART3
bool "UART3"
config OMAP_LL_DEBUG_NONE
bool "None"
endchoice
config OMAP_SERIAL_WAKE

6
arch/arm/plat-omap/include/plat/uncompress.h
View File

@ -44,8 +44,12 @@ static void putc(int c)
uart = (volatile u8 *)(OMAP_UART3_BASE);
#elif defined(CONFIG_OMAP_LL_DEBUG_UART2)
uart = (volatile u8 *)(OMAP_UART2_BASE);
#else
#elif defined(CONFIG_OMAP_LL_DEBUG_UART1)
uart = (volatile u8 *)(OMAP_UART1_BASE);
#elif defined(CONFIG_OMAP_LL_DEBUG_NONE)
return;
#else
return;
#endif
#ifdef CONFIG_ARCH_OMAP1