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| author | Michal Simek <monstr@monstr.eu> | 2007-05-07 23:58:31 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2007-05-07 23:58:31 +0200 |
| commit | fb05f6da35ea1c15c553abe6f23f656bf18dc5db (patch) | |
| tree | 97d017c2c93576570338cd2a5d2034981f131bc8 /cpu/microblaze | |
| parent | a7bac7e9b57ba948051beb19ec5be3a75ce75383 (diff) | |
| download | u-boot-imx-fb05f6da35ea1c15c553abe6f23f656bf18dc5db.zip u-boot-imx-fb05f6da35ea1c15c553abe6f23f656bf18dc5db.tar.gz u-boot-imx-fb05f6da35ea1c15c553abe6f23f656bf18dc5db.tar.bz2 | |
new: USE_MSR_INTR support
Diffstat (limited to 'cpu/microblaze')
| -rwxr-xr-x[-rw-r--r--] | cpu/microblaze/cache.c | 9 | ||||
| -rwxr-xr-x[-rw-r--r--] | cpu/microblaze/interrupts.c | 4 | ||||
| -rwxr-xr-x[-rw-r--r--] | cpu/microblaze/irq.S | 14 |
3 files changed, 21 insertions, 6 deletions
diff --git a/cpu/microblaze/cache.c b/cpu/microblaze/cache.c index 683044c..4f36a84 100644..100755 --- a/cpu/microblaze/cache.c +++ b/cpu/microblaze/cache.c @@ -23,6 +23,7 @@ */ #include <common.h> +#include <asm/asm.h> #if (CONFIG_COMMANDS & CFG_CMD_CACHE) @@ -47,18 +48,18 @@ int icache_status (void) } void icache_enable (void) { - __asm__ __volatile__ ("msrset r0, 0x80"); + MSRSET(0x20); } void icache_disable(void) { - __asm__ __volatile__ ("msrclr r0, 0x80"); + MSRCLR(0x20); } void dcache_enable (void) { - __asm__ __volatile__ ("msrset r0, 0x20"); + MSRSET(0x80); } void dcache_disable(void) { - __asm__ __volatile__ ("msrclr r0, 0x20"); + MSRCLR(0x80); } #endif diff --git a/cpu/microblaze/interrupts.c b/cpu/microblaze/interrupts.c index dd6a0c7..b61153f 100644..100755 --- a/cpu/microblaze/interrupts.c +++ b/cpu/microblaze/interrupts.c @@ -36,12 +36,12 @@ extern void microblaze_enable_interrupts (void); void enable_interrupts (void) { - __asm__ __volatile__ ("msrset r0, 0x2"); + MSRSET(0x2); } int disable_interrupts (void) { - __asm__ __volatile__ ("msrclr r0, 0x2"); + MSRCLR(0x2); return 0; } diff --git a/cpu/microblaze/irq.S b/cpu/microblaze/irq.S index 393d6e8..e1fc190 100644..100755 --- a/cpu/microblaze/irq.S +++ b/cpu/microblaze/irq.S @@ -23,6 +23,7 @@ */ #include <config.h> +#include <asm/asm.h> .text .global _interrupt_handler _interrupt_handler: @@ -151,7 +152,20 @@ _interrupt_handler: addi r1, r1, 4 /* enable_interrupt */ +#ifdef XILINX_USE_MSR_INSTR msrset r0, 2 +#else + /* FIXME unstable in stressed mode - two irqs */ + nop + addi r1, r1, -4 + swi r12, r1, 0 + mfs r12, rmsr + ori r12, r12, 2 + mts rmsr, r12 + lwi r12, r1, 0 + addi r1, r1, 4 + nop +#endif bra r14 nop nop |