From patchwork Mon Dec 31 13:07:11 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vaibhav Bedia X-Patchwork-Id: 1921451 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id ECB5E3FC85 for ; Mon, 31 Dec 2012 13:08:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751488Ab2LaNIt (ORCPT ); Mon, 31 Dec 2012 08:08:49 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:59711 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751289Ab2LaNIq (ORCPT ); Mon, 31 Dec 2012 08:08:46 -0500 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id qBVD8eO2017361; Mon, 31 Dec 2012 07:08:40 -0600 Received: from DQHE72.ent.ti.com (dqhe72.ent.ti.com [172.16.34.79]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id qBVD8dBk032388; Mon, 31 Dec 2012 07:08:40 -0600 Received: from dbdp32.itg.ti.com (172.24.170.251) by DQHE72.ent.ti.com (172.16.34.79) with Microsoft SMTP Server id 14.1.323.3; Mon, 31 Dec 2012 21:08:36 +0800 Received: from localhost.localdomain (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id qBVD7dBk030716; Mon, 31 Dec 2012 18:38:35 +0530 From: Vaibhav Bedia To: , , , CC: Vaibhav Bedia , Santosh Shilimkar , Benoit Cousson , Paul Walmsley Subject: [RFC v2 18/18] ARM: OMAP2+: AM33XX: Hookup AM33XX PM code into OMAP builds Date: Mon, 31 Dec 2012 18:37:11 +0530 Message-ID: <1356959231-17335-19-git-send-email-vaibhav.bedia@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1356959231-17335-1-git-send-email-vaibhav.bedia@ti.com> References: <1356959231-17335-1-git-send-email-vaibhav.bedia@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org With all the requisite changes in place we can now enable basic PM support on AM33XX. This patch updates the various OMAP files to enable suspend-resume on AM33XX. Signed-off-by: Vaibhav Bedia Cc: Tony Lingren Cc: Santosh Shilimkar Cc: Benoit Cousson Cc: Paul Walmsley Cc: Kevin Hilman --- v1->v2: This is a new patch in the series arch/arm/mach-omap2/Makefile | 2 ++ arch/arm/mach-omap2/board-generic.c | 1 + arch/arm/mach-omap2/common.h | 10 ++++++++++ arch/arm/mach-omap2/io.c | 7 +++++++ arch/arm/mach-omap2/pm.h | 7 +++++++ arch/arm/mach-omap2/sram.c | 10 +++++++++- arch/arm/mach-omap2/sram.h | 2 ++ 7 files changed, 38 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index e61867b..a5db55b 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -81,6 +81,7 @@ obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o omap-mpuss-lowpower.o obj-$(CONFIG_SOC_OMAP5) += omap-mpuss-lowpower.o +obj-$(CONFIG_SOC_AM33XX) += pm33xx.o sleep33xx.o obj-$(CONFIG_PM_DEBUG) += pm-debug.o obj-$(CONFIG_POWER_AVS_OMAP) += sr_device.o @@ -88,6 +89,7 @@ obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o AFLAGS_sleep24xx.o :=-Wa,-march=armv6 AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a$(plus_sec) +AFLAGS_sleep33xx.o :=-Wa,-march=armv7-a$(plus_sec) ifeq ($(CONFIG_PM_VERBOSE),y) CFLAGS_pm_bus.o += -DDEBUG diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 53cb380..1c9195d 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -136,6 +136,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)") .reserve = omap_reserve, .map_io = am33xx_map_io, .init_early = am33xx_init_early, + .init_late = am33xx_init_late, .init_irq = omap_intc_of_init, .handle_irq = omap3_intc_handle_irq, .init_machine = omap_generic_init, diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index 41d74fe..73cac5c 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -68,6 +68,15 @@ static inline int omap4_pm_init(void) } #endif +#if defined(CONFIG_PM) && defined(CONFIG_SOC_AM33XX) +int am33xx_pm_init(void); +#else +static inline int am33xx_pm_init(void) +{ + return 0; +} +#endif + #ifdef CONFIG_OMAP_MUX int omap_mux_late_init(void); #else @@ -106,6 +115,7 @@ void omap2430_init_late(void); void omap3430_init_late(void); void omap35xx_init_late(void); void omap3630_init_late(void); +void am33xx_init_late(void); void am35xx_init_late(void); void ti81xx_init_late(void); void omap4430_init_late(void); diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 2c3fdd6..b5637c6 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -570,6 +570,13 @@ void __init am33xx_init_early(void) omap_hwmod_init_postsetup(); am33xx_clk_init(); } + +void __init am33xx_init_late(void) +{ + omap_mux_late_init(); + omap2_common_pm_late_init(); + am33xx_pm_init(); +} #endif #ifdef CONFIG_ARCH_OMAP4 diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index 531a4de..118ebde 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -76,6 +76,13 @@ extern unsigned int omap3_do_wfi_sz; /* ... and its pointer from SRAM after copy */ extern void (*omap3_do_wfi_sram)(void); +/* am33xx_do_wfi function pointer and size, for copy to SRAM */ +extern void am33xx_do_wfi(void); +extern unsigned int am33xx_do_wfi_sz; +extern unsigned int am33xx_resume_offset; +/* ... and its pointer from SRAM after copy */ +extern void (*am33xx_do_wfi_sram)(void); + /* save_secure_ram_context function pointer and size, for copy to SRAM */ extern int save_secure_ram_context(u32 *addr); extern unsigned int save_secure_ram_context_sz; diff --git a/arch/arm/mach-omap2/sram.c b/arch/arm/mach-omap2/sram.c index 0ff0f06..7951e0d 100644 --- a/arch/arm/mach-omap2/sram.c +++ b/arch/arm/mach-omap2/sram.c @@ -151,7 +151,7 @@ static void __init omap2_map_sram(void) omap_sram_size -= SZ_16K; } #endif - if (cpu_is_omap34xx()) { + if (cpu_is_omap34xx() || soc_is_am33xx()) { /* * SRAM must be marked as non-cached on OMAP3 since the * CORE DPLL M2 divider change code (in SRAM) runs with the @@ -282,10 +282,18 @@ static inline int omap34xx_sram_init(void) } #endif /* CONFIG_ARCH_OMAP3 */ +#ifdef CONFIG_SOC_AM33XX static inline int am33xx_sram_init(void) { + am33xx_push_sram_idle(); return 0; } +#else +static inline int am33xx_sram_init(void) +{ + return 0; +} +#endif int __init omap_sram_init(void) { diff --git a/arch/arm/mach-omap2/sram.h b/arch/arm/mach-omap2/sram.h index ca7277c..24788b5 100644 --- a/arch/arm/mach-omap2/sram.h +++ b/arch/arm/mach-omap2/sram.h @@ -62,8 +62,10 @@ extern unsigned long omap3_sram_configure_core_dpll_sz; #ifdef CONFIG_PM extern void omap_push_sram_idle(void); +extern void am33xx_push_sram_idle(void); #else static inline void omap_push_sram_idle(void) {} +static inline void am33xx_push_sram_idle(void) {} #endif /* CONFIG_PM */ #endif /* __ASSEMBLY__ */