diff options
Diffstat (limited to 'xen/arch/arm/platforms/vexpress.c')
| -rw-r--r-- | xen/arch/arm/platforms/vexpress.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/xen/arch/arm/platforms/vexpress.c b/xen/arch/arm/platforms/vexpress.c index 22c0c13e98..b9d85af2ab 100644 --- a/xen/arch/arm/platforms/vexpress.c +++ b/xen/arch/arm/platforms/vexpress.c @@ -22,6 +22,7 @@ #include <xen/mm.h> #include <xen/vmap.h> #include <asm/io.h> +#include <asm/gic.h> #define DCC_SHIFT 26 #define FUNCTION_SHIFT 20 @@ -120,6 +121,39 @@ static void vexpress_reset(void) iounmap(sp810); } +#ifdef CONFIG_ARM_32 + +static int __init vexpress_smp_init(void) +{ + void __iomem *sysflags; + + sysflags = ioremap_nocache(V2M_SYS_MMIO_BASE, PAGE_SIZE); + if ( !sysflags ) + { + dprintk(XENLOG_ERR, "Unable to map vexpress MMIO\n"); + return -EFAULT; + } + + printk("Set SYS_FLAGS to %"PRIpaddr" (%p)\n", + __pa(init_secondary), init_secondary); + writel(~0, sysflags + V2M_SYS_FLAGSCLR); + writel(__pa(init_secondary), sysflags + V2M_SYS_FLAGSSET); + + iounmap(sysflags); + + return 0; +} + +static int __init vexpress_cpu_up(int cpu) +{ + /* Nothing to do here, the generic sev() will suffice to kick CPUs + * out of either the firmware or our own smp_up_cpu gate, + * depending on where they have ended up. */ + + return 0; +} +#endif + static const char * const vexpress_dt_compat[] __initdata = { "arm,vexpress", @@ -144,6 +178,10 @@ static const struct dt_device_match vexpress_blacklist_dev[] __initconst = PLATFORM_START(vexpress, "VERSATILE EXPRESS") .compatible = vexpress_dt_compat, +#ifdef CONFIG_ARM_32 + .smp_init = vexpress_smp_init, + .cpu_up = vexpress_cpu_up, +#endif .reset = vexpress_reset, .blacklist_dev = vexpress_blacklist_dev, PLATFORM_END |