diff options
Diffstat (limited to 'arch/sh/boards/saturn/smp.c')
-rw-r--r-- | arch/sh/boards/saturn/smp.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/sh/boards/saturn/smp.c b/arch/sh/boards/saturn/smp.c deleted file mode 100644 index 76460918c9c..00000000000 --- a/arch/sh/boards/saturn/smp.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * arch/sh/boards/saturn/smp.c - * - * SMP support for the Sega Saturn. - * - * Copyright (c) 2002 Paul Mundt - * - * Released under the terms of the GNU GPL v2.0. - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/smp.h> - -#include <asm/saturn/smpc.h> - -extern void start_secondary(void); - -void __smp_send_ipi(unsigned int cpu, unsigned int action) -{ - /* Nothing here yet .. */ -} - -unsigned int __smp_probe_cpus(void) -{ - /* - * This is just a straightforward master/slave configuration, - * and probing isn't really supported.. - */ - return 2; -} - -/* - * We're only allowed to do byte-access to SMPC registers. In - * addition to which, we treat them as write-only, since - * reading from them will return undefined data. - */ -static inline void smpc_slave_stop(unsigned int cpu) -{ - smpc_barrier(); - ctrl_outb(1, SMPC_STATUS); - - ctrl_outb(SMPC_CMD_SSHOFF, SMPC_COMMAND); - smpc_barrier(); -} - -static inline void smpc_slave_start(unsigned int cpu) -{ - ctrl_outb(1, SMPC_STATUS); - ctrl_outb(SMPC_CMD_SSHON, SMPC_COMMAND); - - smpc_barrier(); -} - -void __smp_slave_init(unsigned int cpu) -{ - register unsigned long vbr; - void **entry; - - __asm__ __volatile__ ("stc vbr, %0\n\t" : "=r" (vbr)); - entry = (void **)(vbr + 0x310 + 0x94); - - smpc_slave_stop(cpu); - - *(void **)entry = (void *)start_secondary; - - smpc_slave_start(cpu); -} - |