[PATCH 03/16] ARM: berlin: use generic API for enabling SCU

From: Pankaj Dubey
Date: Mon Nov 14 2016 - 00:03:35 EST


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

CC: Jisheng Zhang <jszhang@xxxxxxxxxxx>
CC: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
Signed-off-by: Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx>
---
arch/arm/mach-berlin/platsmp.c | 17 +++++------------
1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c
index 93f9068..25a6ca5 100644
--- a/arch/arm/mach-berlin/platsmp.c
+++ b/arch/arm/mach-berlin/platsmp.c
@@ -60,26 +60,21 @@ static int berlin_boot_secondary(unsigned int cpu, struct task_struct *idle)
static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
{
struct device_node *np;
- void __iomem *scu_base;
void __iomem *vectors_base;

- np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
- scu_base = of_iomap(np, 0);
- of_node_put(np);
- if (!scu_base)
- return;
-
np = of_find_compatible_node(NULL, NULL, "marvell,berlin-cpu-ctrl");
cpu_ctrl = of_iomap(np, 0);
of_node_put(np);
if (!cpu_ctrl)
- goto unmap_scu;
+ return;

vectors_base = ioremap(CONFIG_VECTORS_BASE, SZ_32K);
if (!vectors_base)
- goto unmap_scu;
+ return;
+
+ if (of_scu_enable())
+ return;

- scu_enable(scu_base);
flush_cache_all();

/*
@@ -95,8 +90,6 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
writel(virt_to_phys(secondary_startup), vectors_base + SW_RESET_ADDR);

iounmap(vectors_base);
-unmap_scu:
- iounmap(scu_base);
}

#ifdef CONFIG_HOTPLUG_CPU
--
2.7.4