diff options
| author | Pavel Machek <pavel@ucw.cz> | 2009-11-02 11:48:29 +0100 |
|---|---|---|
| committer | Daniel Walker <dwalker@fifo99.com> | 2009-11-20 06:40:05 -0800 |
| commit | 6339f6695f84e48b42021c6df91d81b17308fe92 (patch) | |
| tree | 38be250cc731428524eba5f1c598771f71780304 /arch/arm/mach-msm/include/mach/debug-macro.S | |
| parent | 333a07437c31ea8c16a2b82071629a540ae1e50f (diff) | |
msm: make debugging UART (for DEBUG_LL) configurable
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>
Diffstat (limited to 'arch/arm/mach-msm/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-msm/include/mach/debug-macro.S | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/arch/arm/mach-msm/include/mach/debug-macro.S b/arch/arm/mach-msm/include/mach/debug-macro.S index 1db3c97dbc4..d48747ebcd3 100644 --- a/arch/arm/mach-msm/include/mach/debug-macro.S +++ b/arch/arm/mach-msm/include/mach/debug-macro.S @@ -14,15 +14,18 @@ * */ + + #include <mach/hardware.h> #include <mach/msm_iomap.h> +#ifdef CONFIG_MSM_DEBUG_UART .macro addruart,rx @ see if the MMU is enabled and select appropriate base address mrc p15, 0, \rx, c1, c0 tst \rx, #1 - ldreq \rx, =MSM_UART1_PHYS - movne \rx, #0 + ldreq \rx, =MSM_DEBUG_UART_PHYS + ldrne \rx, =MSM_DEBUG_UART_BASE .endm .macro senduart,rd,rx @@ -32,13 +35,20 @@ .macro waituart,rd,rx @ wait for TX_READY - teq \rx, #0 - bne 2f -1: ldr \rd, [\rx, #0x08] +1001: ldr \rd, [\rx, #0x08] tst \rd, #0x04 - beq 1b -2: + beq 1001b + .endm +#else + .macro addruart,rx + .endm + + .macro senduart,rd,rx + .endm + + .macro waituart,rd,rx .endm +#endif .macro busyuart,rd,rx .endm |