ARM: shmobile: r8a7790 CA7-SCU enablement (0445ded6) · Commits · 戴 / test

Power on CA7 SCU in case of booting from a CA15 core. Signed-off-by:

Gaku Inami <gaku.inami.xw@bp.renesas.com> [damm@opensource.se: Converted to use broken out SYSC code] Signed-off-by:

arch/arm/mach-shmobile/smp-r8a7790.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,8 @@
		#include <linux/io.h>
		#include <asm/smp_plat.h>
		#include <mach/common.h>
		#include <mach/pm-rcar.h>
		#include <mach/r8a7790.h>

		#define RST 0xe6160000
		#define CA15BAR 0x0020
		@@ -27,6 +29,11 @@
		#define CA7RESCNT 0x0044
		#define MERAM 0xe8080000

		static struct rcar_sysc_ch r8a7790_ca7_scu = {
		.chan_offs = 0x100, /* PWRSR3 .. PWRER3 */
		.isr_bit = 21, /* CA7-SCU */
		};

		static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus)
		{
		void __iomem *p;
		@@ -54,6 +61,10 @@ static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus)
		writel_relaxed((readl_relaxed(p + CA7RESCNT) & ~0x0f) \| 0x5a5a0000,
		p + CA7RESCNT);
		iounmap(p);

		/* turn on power to SCU */
		r8a7790_pm_init();
		rcar_sysc_power_up(&r8a7790_ca7_scu);
		}

		struct smp_operations r8a7790_smp_ops __initdata = {