mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 03:36:48 +07:00
a48f165509
Add r8a7790 SYSC power management support. Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com> Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com> [damm@opensource.se: Converted to use broken out SYSC code] Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
46 lines
968 B
C
46 lines
968 B
C
/*
|
|
* r8a7790 Power management support
|
|
*
|
|
* Copyright (C) 2013 Renesas Electronics Corporation
|
|
* Copyright (C) 2011 Renesas Solutions Corp.
|
|
* Copyright (C) 2011 Magnus Damm
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <asm/io.h>
|
|
#include <mach/pm-rcar.h>
|
|
#include <mach/r8a7790.h>
|
|
|
|
/* SYSC */
|
|
#define SYSCIER 0x0c
|
|
#define SYSCIMR 0x10
|
|
|
|
#if defined(CONFIG_SMP)
|
|
|
|
static void __init r8a7790_sysc_init(void)
|
|
{
|
|
void __iomem *base = rcar_sysc_init(0xe6180000);
|
|
|
|
/* enable all interrupt sources, but do not use interrupt handler */
|
|
iowrite32(0x0131000e, base + SYSCIER);
|
|
iowrite32(0, base + SYSCIMR);
|
|
}
|
|
|
|
#else /* CONFIG_SMP */
|
|
|
|
static inline void r8a7790_sysc_init(void) {}
|
|
|
|
#endif /* CONFIG_SMP */
|
|
|
|
void __init r8a7790_pm_init(void)
|
|
{
|
|
static int once;
|
|
|
|
if (!once++)
|
|
r8a7790_sysc_init();
|
|
}
|