2  * arch/arm/mach-vexpress/dcscb.c - Dual Cluster System Configuration Block
41 static int dcscb_cpu_powerup(unsigned int cpu, unsigned int cluster)  in dcscb_cpu_powerup()  argument
45 	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);  in dcscb_cpu_powerup()
46 	if (cluster >= 2 || !(cpumask & dcscb_allcpus_mask[cluster]))  in dcscb_cpu_powerup()
49 	rst_hold = readl_relaxed(dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cpu_powerup()
51 	writel_relaxed(rst_hold, dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cpu_powerup()
55 static int dcscb_cluster_powerup(unsigned int cluster)  in dcscb_cluster_powerup()  argument
59 	pr_debug("%s: cluster %u\n", __func__, cluster);  in dcscb_cluster_powerup()
60 	if (cluster >= 2)  in dcscb_cluster_powerup()
63 	/* remove cluster reset and add individual CPU's reset */  in dcscb_cluster_powerup()
64 	rst_hold = readl_relaxed(dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cluster_powerup()
66 	rst_hold |= dcscb_allcpus_mask[cluster];  in dcscb_cluster_powerup()
67 	writel_relaxed(rst_hold, dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cluster_powerup()
71 static void dcscb_cpu_powerdown_prepare(unsigned int cpu, unsigned int cluster)  in dcscb_cpu_powerdown_prepare()  argument
75 	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);  in dcscb_cpu_powerdown_prepare()
76 	BUG_ON(cluster >= 2 || !((1 << cpu) & dcscb_allcpus_mask[cluster]));  in dcscb_cpu_powerdown_prepare()
78 	rst_hold = readl_relaxed(dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cpu_powerdown_prepare()
80 	writel_relaxed(rst_hold, dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cpu_powerdown_prepare()
83 static void dcscb_cluster_powerdown_prepare(unsigned int cluster)  in dcscb_cluster_powerdown_prepare()  argument
87 	pr_debug("%s: cluster %u\n", __func__, cluster);  in dcscb_cluster_powerdown_prepare()
88 	BUG_ON(cluster >= 2);  in dcscb_cluster_powerdown_prepare()
90 	rst_hold = readl_relaxed(dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cluster_powerdown_prepare()
92 	writel_relaxed(rst_hold, dcscb_base + RST_HOLD0 + cluster * 4);  in dcscb_cluster_powerdown_prepare()
103 	/* Flush all cache levels for this cluster. */  in dcscb_cluster_cache_disable()
110 	 * cluster standing" would need to be implemented if the  in dcscb_cluster_cache_disable()
119 	 * Disable cluster-level coherency by masking  in dcscb_cluster_cache_disable()
167 	 * through the cluster entry vectors.  in dcscb_init()