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sparc64: implement reset

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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@673 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Blue Swirl
2010-01-31 12:16:46 +00:00
parent dec920ff08
commit 305168fb73
1 changed files with 16 additions and 0 deletions
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16
arch/sparc64/openbios.c
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@@ -92,6 +92,17 @@ set_trap_table(void)
: : "r" (addr));
}
/* Reset control register is defined in 17.2.7.3 of US IIi User Manual */
static void
sparc64_reset_all(void)
{
unsigned long addr = 0x1fe0000f020ULL;
unsigned long val = 1 << 29;
asm("stxa %0, [%1] 0x15\n\t"
: : "r" (val), "r" (addr) : "memory");
}
static void cpu_generic_init(const struct cpudef *cpu, uint32_t clock_frequency)
{
unsigned long iu_version;
@@ -146,6 +157,11 @@ static void cpu_generic_init(const struct cpudef *cpu, uint32_t clock_frequency)
push_str("/openprom/client-services");
fword("find-device");
bind_func("SUNW,set-trap-table", set_trap_table);
// Reset
bind_func("sparc64-reset-all", sparc64_reset_all);
push_str("' sparc64-reset-all to reset-all");
fword("eval");
}
static const struct cpudef sparc_defs[] = {