From ca803a791056da5a2acdf7118bbacf0f119e6433 Mon Sep 17 00:00:00 2001 From: Bai Ping Date: Tue, 10 Apr 2018 16:50:04 +0800 Subject: plat: imx: add gic save/restore for imx8qm/qxp In order to save power when AP side is suspend, the DBLOG need to be put into low power mode. GIC need to be power off to save power. before GIC power off, we need to save the GIC setting, then after resume, we need to restore the gic setting. irqsteer need to be used to wakeup the AP side when wakeup interrupt is pending for AP side. Signed-off-by: Bai Ping --- plat/imx/imx8qxp/imx8qxp_bl31_setup.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'plat/imx/imx8qxp/imx8qxp_bl31_setup.c') diff --git a/plat/imx/imx8qxp/imx8qxp_bl31_setup.c b/plat/imx/imx8qxp/imx8qxp_bl31_setup.c index 0044d113..d4c4ddcd 100644 --- a/plat/imx/imx8qxp/imx8qxp_bl31_setup.c +++ b/plat/imx/imx8qxp/imx8qxp_bl31_setup.c @@ -346,6 +346,9 @@ void bl31_plat_arch_setup(void) MT_DEVICE | MT_RW); // mmap_add_region(IMX_GPT0_BASE, IMX_GPT0_BASE, 0x10000, // MT_DEVICE | MT_RW); + mmap_add_region(IMX_WUP_IRQSTR, IMX_WUP_IRQSTR, 0x10000, + MT_DEVICE | MT_RW); + #if USE_COHERENT_MEM mmap_add_region(BL31_COHERENT_RAM_BASE, BL31_COHERENT_RAM_BASE, BL31_COHERENT_RAM_LIMIT - BL31_COHERENT_RAM_BASE, -- cgit v1.2.3