diff options
Diffstat (limited to 'post/uart.c')
| -rw-r--r-- | post/uart.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/post/uart.c b/post/uart.c index fd97e3899e..94bfc4e71d 100644 --- a/post/uart.c +++ b/post/uart.c @@ -231,20 +231,13 @@ static void smc_putc (int smc_index, const char c) */ buf = (char *) tbdf->cbd_bufaddr; -#if 0 - __asm__ ("eieio"); - while (tbdf->cbd_sc & BD_SC_READY) - __asm__ ("eieio"); -#endif *buf = c; tbdf->cbd_datlen = 1; tbdf->cbd_sc |= BD_SC_READY; __asm__ ("eieio"); -#if 1 while (tbdf->cbd_sc & BD_SC_READY) __asm__ ("eieio"); -#endif } static int smc_getc (int smc_index) @@ -264,9 +257,6 @@ static int smc_getc (int smc_index) /* Wait for character to show up. */ buf = (unsigned char *) rbdf->cbd_bufaddr; -#if 0 - while (rbdf->cbd_sc & BD_SC_EMPTY); -#else for (i = 100; i > 0; i--) { if (!(rbdf->cbd_sc & BD_SC_EMPTY)) break; @@ -275,7 +265,6 @@ static int smc_getc (int smc_index) if (i == 0) return -1; -#endif c = *buf; rbdf->cbd_sc |= BD_SC_EMPTY; @@ -445,20 +434,13 @@ static void scc_putc (int scc_index, const char c) */ buf = (char *) tbdf->cbd_bufaddr; -#if 0 - __asm__ ("eieio"); - while (tbdf->cbd_sc & BD_SC_READY) - __asm__ ("eieio"); -#endif *buf = c; tbdf->cbd_datlen = 1; tbdf->cbd_sc |= BD_SC_READY; __asm__ ("eieio"); -#if 1 while (tbdf->cbd_sc & BD_SC_READY) __asm__ ("eieio"); -#endif } static int scc_getc (int scc_index) @@ -478,9 +460,6 @@ static int scc_getc (int scc_index) /* Wait for character to show up. */ buf = (unsigned char *) rbdf->cbd_bufaddr; -#if 0 - while (rbdf->cbd_sc & BD_SC_EMPTY); -#else for (i = 100; i > 0; i--) { if (!(rbdf->cbd_sc & BD_SC_EMPTY)) break; @@ -489,7 +468,6 @@ static int scc_getc (int scc_index) if (i == 0) return -1; -#endif c = *buf; rbdf->cbd_sc |= BD_SC_EMPTY; |