diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-zynq/platsmp.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c index 5fc167e0761..023f225493f 100644 --- a/arch/arm/mach-zynq/platsmp.c +++ b/arch/arm/mach-zynq/platsmp.c @@ -53,34 +53,34 @@ int __cpuinit zynq_cpun_start(u32 address, int cpu) &zynq_secondary_trampoline; zynq_slcr_cpu_stop(cpu); - - if (__pa(PAGE_OFFSET)) { - zero = ioremap(0, trampoline_code_size); - if (!zero) { - pr_warn("BOOTUP jump vectors not accessible\n"); - return -1; + if (address) { + if (__pa(PAGE_OFFSET)) { + zero = ioremap(0, trampoline_code_size); + if (!zero) { + pr_warn("BOOTUP jump vectors not accessible\n"); + return -1; + } + } else { + zero = (__force u8 __iomem *)PAGE_OFFSET; } - } else { - zero = (__force u8 __iomem *)PAGE_OFFSET; - } - - /* - * This is elegant way how to jump to any address - * 0x0: Load address at 0x8 to r0 - * 0x4: Jump by mov instruction - * 0x8: Jumping address - */ - memcpy((__force void *)zero, &zynq_secondary_trampoline, - trampoline_size); - writel(address, zero + trampoline_size); - - flush_cache_all(); - outer_flush_range(0, trampoline_code_size); - smp_wmb(); - - if (__pa(PAGE_OFFSET)) - iounmap(zero); + /* + * This is elegant way how to jump to any address + * 0x0: Load address at 0x8 to r0 + * 0x4: Jump by mov instruction + * 0x8: Jumping address + */ + memcpy((__force void *)zero, &zynq_secondary_trampoline, + trampoline_size); + writel(address, zero + trampoline_size); + + flush_cache_all(); + outer_flush_range(0, trampoline_code_size); + smp_wmb(); + + if (__pa(PAGE_OFFSET)) + iounmap(zero); + } zynq_slcr_cpu_start(cpu); return 0; |