ARM: ux500: get SCU base from device tree (58202033) · Commits · 戴 / test

arch/arm/mach-ux500/platsmp.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@
		#include <linux/device.h>
		#include <linux/smp.h>
		#include <linux/io.h>
		#include <linux/of.h>
		#include <linux/of_address.h>

		#include <asm/cacheflush.h>
		#include <asm/smp_plat.h>
		@@ -122,8 +124,13 @@ static void __init wakeup_secondary(void)
		static void __init ux500_smp_init_cpus(void)
		{
		unsigned int i, ncores;
		struct device_node *np;

		scu_base = ioremap(U8500_SCU_BASE, 0x100);
		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;
		backupram = ioremap(U8500_BACKUPRAM0_BASE, SZ_8K);
		ncores = scu_get_core_count(scu_base);