diff options
Diffstat (limited to 'arch/arm/boot/compressed/misc.c')
| -rw-r--r-- | arch/arm/boot/compressed/misc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index 28626ec2d2898..0af3772efcb79 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -30,7 +30,20 @@ static void putstr(const char *ptr); #include <asm/arch/uncompress.h> #ifdef CONFIG_DEBUG_ICEDCC -extern void icedcc_putc(int ch); +static void icedcc_putc(int ch) +{ + int status, i = 0x4000000; + + do { + if (--i < 0) + return; + + asm("mrc p14, 0, %0, c0, c0, 0" : "=r" (status)); + } while (status & 2); + + asm("mcr p15, 0, %0, c1, c0, 0" : : "r" (ch)); +} + #define putc(ch) icedcc_putc(ch) #define flush() do { } while (0) #endif |