diff options
| author | Jeremy Allison <jra@samba.org> | 2005-06-22 17:35:06 -0700 |
|---|---|---|
| committer | Steve French <sfrench@hera.kernel.org> | 2005-06-22 17:35:06 -0700 |
| commit | 1bdf7a78c2b21fb94dfe7994dbe89310b18479d2 (patch) | |
| tree | 7741cfd476f9c622a10c198da421fdb3e38708b9 /arch/m32r/boot/compressed/m32r_sio.c | |
| parent | ac67055ef2378ea95c34b593ddf9d0a0737a240a (diff) | |
| parent | a4936044001694f033fe4ea94d6034d51a6b465c (diff) | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'arch/m32r/boot/compressed/m32r_sio.c')
| -rw-r--r-- | arch/m32r/boot/compressed/m32r_sio.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/m32r/boot/compressed/m32r_sio.c b/arch/m32r/boot/compressed/m32r_sio.c index bad5475eff9..8f9a57271f8 100644 --- a/arch/m32r/boot/compressed/m32r_sio.c +++ b/arch/m32r/boot/compressed/m32r_sio.c @@ -6,6 +6,7 @@ */ #include <linux/config.h> +#include <asm/processor.h> static void putc(char c); @@ -38,16 +39,17 @@ static int puts(const char *s) static void putc(char c) { - - while ((*BOOT_SIO0STS & 0x3) != 0x3) ; + while ((*BOOT_SIO0STS & 0x3) != 0x3) + cpu_relax(); if (c == '\n') { *BOOT_SIO0TXB = '\r'; - while ((*BOOT_SIO0STS & 0x3) != 0x3) ; + while ((*BOOT_SIO0STS & 0x3) != 0x3) + cpu_relax(); } *BOOT_SIO0TXB = c; } -#else /* defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT) */ -#ifdef CONFIG_MMU +#else /* !(CONFIG_PLAT_M32700UT_Alpha) && !(CONFIG_PLAT_M32700UT) */ +#if defined(CONFIG_PLAT_MAPPI2) #define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14) #define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30) #else @@ -57,11 +59,12 @@ static void putc(char c) static void putc(char c) { - - while ((*SIO0STS & 0x1) == 0) ; + while ((*SIO0STS & 0x1) == 0) + cpu_relax(); if (c == '\n') { *SIO0TXB = '\r'; - while ((*SIO0STS & 0x1) == 0) ; + while ((*SIO0STS & 0x1) == 0) + cpu_relax(); } *SIO0TXB = c; } |