linux-kernel - [PATCH 07/16] ARM: ux500: use generic API for enabling SCU

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Date:   Mon, 14 Nov 2016 10:32:02 +0530
From:   Pankaj Dubey <pankaj.dubey@...sung.com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     rmk+kernel@...linux.org.uk, arnd@...db.de, horms@...ge.net.au,
        magnus.damm@...il.com, geert+renesas@...der.be, vireshk@...nel.org,
        shiraz.linux.kernel@...il.com, krzk@...nel.org,
        thomas.ab@...sung.com, Pankaj Dubey <pankaj.dubey@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 07/16] ARM: ux500: use generic API for enabling SCU

Now as we have of_scu_enable which takes care of mapping
scu base from DT, lets use it.

CC: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Pankaj Dubey <pankaj.dubey@...sung.com>
---
 arch/arm/mach-ux500/platsmp.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index 8f2f615..e1927ae 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -66,28 +66,10 @@ static void wakeup_secondary(void)
 
 static void __init ux500_smp_prepare_cpus(unsigned int max_cpus)
 {
-	struct device_node *np;
-	static void __iomem *scu_base;
-	unsigned int ncores;
-	int i;
-
-	np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
-	if (!np) {
-		pr_err("No SCU base address\n");
-		return;
-	}
-	scu_base = of_iomap(np, 0);
-	of_node_put(np);
-	if (!scu_base) {
+	if (of_scu_enable()) {
 		pr_err("No SCU remap\n");
 		return;
 	}
-
-	scu_enable(scu_base);
-	ncores = scu_get_core_count(scu_base);
-	for (i = 0; i < ncores; i++)
-		set_cpu_possible(i, true);
-	iounmap(scu_base);
 }
 
 static int ux500_boot_secondary(unsigned int cpu, struct task_struct *idle)
-- 
2.7.4