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msm: make debugging UART (for DEBUG_LL) configurable

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Provides options to select one of the three "lowspeed" UARTs
on MSM7k SoCs for DEBUG_LL output from the zImage decompressor
and kernel.

Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
This commit is contained in:
Pavel Machek
2009-11-02 11:48:29 +01:00
committed by Daniel Walker
parent 333a07437c
commit 6339f6695f
5 changed files with 63 additions and 7 deletions
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7
arch/arm/mach-msm/include/mach/uncompress.h
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@ -16,9 +16,16 @@
#ifndef __ASM_ARCH_MSM_UNCOMPRESS_H
#include "hardware.h"
#include "linux/io.h"
#include "mach/msm_iomap.h"
static void putc(int c)
{
#if defined(MSM_DEBUG_UART_PHYS)
unsigned base = MSM_DEBUG_UART_PHYS;
while (!(readl(base + 0x08) & 0x04)) ;
writel(c, base + 0x0c);
#endif
}
static inline void flush(void)