| * linux/arch/arm/kernel/smp_scu.c |
| * Copyright (C) 2002 ARM Ltd. |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| #include <asm/cacheflush.h> |
| #define SCU_CPU_STATUS 0x08 |
| #define SCU_INVALIDATE 0x0c |
| #define SCU_FPGA_REVISION 0x10 |
| * Get the number of CPU cores from the SCU configuration |
| unsigned int __init scu_get_core_count(void __iomem *scu_base) |
| unsigned int ncores = __raw_readl(scu_base + SCU_CONFIG); |
| return (ncores & 0x03) + 1; |
| void __init scu_enable(void __iomem *scu_base) |
| scu_ctrl = __raw_readl(scu_base + SCU_CTRL); |
| __raw_writel(scu_ctrl, scu_base + SCU_CTRL); |
| * Ensure that the data accessed by CPU0 before the SCU was |
| * initialised is visible to the other CPUs. |