diff options
Diffstat (limited to 'arch/powerpc/platforms/86xx/mpc86xx_smp.c')
| -rw-r--r-- | arch/powerpc/platforms/86xx/mpc86xx_smp.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_smp.c b/arch/powerpc/platforms/86xx/mpc86xx_smp.c index ba55b0ff0f7..af09baee22c 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_smp.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_smp.c @@ -15,11 +15,11 @@ #include <linux/init.h> #include <linux/delay.h> +#include <asm/code-patching.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/pci-bridge.h> -#include <asm-powerpc/mpic.h> -#include <asm/mpc86xx.h> +#include <asm/mpic.h> #include <asm/cacheflush.h> #include <sysdev/fsl_soc.h> @@ -27,8 +27,12 @@ #include "mpc86xx.h" extern void __secondary_start_mpc86xx(void); -extern unsigned long __secondary_hold_acknowledge; +#define MCM_PORT_CONFIG_OFFSET 0x10 + +/* Offset from CCSRBAR */ +#define MPC86xx_MCM_OFFSET (0x1000) +#define MPC86xx_MCM_SIZE (0x1000) static void __init smp_86xx_release_core(int nr) @@ -47,20 +51,21 @@ smp_86xx_release_core(int nr) pcr = in_be32(mcm_vaddr + (MCM_PORT_CONFIG_OFFSET >> 2)); pcr |= 1 << (nr + 24); out_be32(mcm_vaddr + (MCM_PORT_CONFIG_OFFSET >> 2), pcr); + + iounmap(mcm_vaddr); } -static void __init +static int __init smp_86xx_kick_cpu(int nr) { unsigned int save_vector; unsigned long target, flags; int n = 0; - volatile unsigned int *vector - = (volatile unsigned int *)(KERNELBASE + 0x100); + unsigned int *vector = (unsigned int *)(KERNELBASE + 0x100); if (nr < 0 || nr >= NR_CPUS) - return; + return -ENOENT; pr_debug("smp_86xx_kick_cpu: kick CPU #%d\n", nr); @@ -71,7 +76,7 @@ smp_86xx_kick_cpu(int nr) /* Setup fake reset vector to call __secondary_start_mpc86xx. */ target = (unsigned long) __secondary_start_mpc86xx; - create_branch((unsigned long)vector, target, BRANCH_SET_LINK); + patch_branch(vector, target, BRANCH_SET_LINK); /* Kick that CPU */ smp_86xx_release_core(nr); @@ -87,6 +92,8 @@ smp_86xx_kick_cpu(int nr) local_irq_restore(flags); pr_debug("wait CPU #%d for %d msecs.\n", nr, n); + + return 0; } |