diff options
| -rw-r--r-- | arch/arm/boot/compressed/head.S | 8 | ||||
| -rw-r--r-- | arch/arm/boot/compressed/misc.c | 12 | ||||
| -rw-r--r-- | arch/arm/kernel/debug.S | 20 |
3 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index d356af7cef8..4fddc509e78 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -27,6 +27,14 @@ .macro writeb, ch, rb mcr p14, 0, \ch, c0, c5, 0 .endm +#elif defined(CONFIG_CPU_V7) + .macro loadsp, rb + .endm + .macro writeb, ch, rb +wait: mrc p14, 0, pc, c0, c1, 0 + bcs wait + mcr p14, 0, \ch, c0, c5, 0 + .endm #elif defined(CONFIG_CPU_XSCALE) .macro loadsp, rb .endm diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index af6479fae93..56a0d116d27 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -53,6 +53,18 @@ static void icedcc_putc(int ch) asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch)); } + +#elif defined(CONFIG_CPU_V7) + +static void icedcc_putc(int ch) +{ + asm( + "wait: mrc p14, 0, pc, c0, c1, 0 \n\ + bcs wait \n\ + mcr p14, 0, %0, c0, c5, 0 " + : : "r" (ch)); +} + #elif defined(CONFIG_CPU_XSCALE) static void icedcc_putc(int ch) diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S index b121b6053cc..5c91addcaeb 100644 --- a/arch/arm/kernel/debug.S +++ b/arch/arm/kernel/debug.S @@ -49,6 +49,26 @@ 1002: .endm +#elif defined(CONFIG_CPU_V7) + + .macro addruart, rx + .endm + + .macro senduart, rd, rx + mcr p14, 0, \rd, c0, c5, 0 + .endm + + .macro busyuart, rd, rx +busy: mrc p14, 0, pc, c0, c1, 0 + bcs busy + .endm + + .macro waituart, rd, rx +wait: mrc p14, 0, pc, c0, c1, 0 + bcs wait + + .endm + #elif defined(CONFIG_CPU_XSCALE) .macro addruart, rx |