From patchwork Mon Dec 29 01:43:51 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 5546671 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 557D79F1BF for ; Mon, 29 Dec 2014 01:44:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3923F20160 for ; Mon, 29 Dec 2014 01:44:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE96220176 for ; Mon, 29 Dec 2014 01:44:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751771AbaL2BoA (ORCPT ); Sun, 28 Dec 2014 20:44:00 -0500 Received: from kirsty.vergenet.net ([202.4.237.240]:53450 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751740AbaL2Bn7 (ORCPT ); Sun, 28 Dec 2014 20:43:59 -0500 Received: from penelope.kanocho.kobe.vergenet.net (p4076-ipbfp703kobeminato.hyogo.ocn.ne.jp [122.20.17.76]) by kirsty.vergenet.net (Postfix) with ESMTP id 6AAC426717C; Mon, 29 Dec 2014 12:43:55 +1100 (EST) Received: by penelope.kanocho.kobe.vergenet.net (Postfix, from userid 7100) id 2FC7E604BF; Mon, 29 Dec 2014 10:43:54 +0900 (JST) From: Simon Horman To: linux-sh@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Magnus Damm , Geert Uytterhoeven , Simon Horman Subject: [PATCH 4/6] ARM: shmobile: R-Mobile: Store SYSC base address in rmobile_pm_domain Date: Mon, 29 Dec 2014 10:43:51 +0900 Message-Id: <2e33867753808a36af29dee53e78c9eb72310404.1419809198.git.horms+renesas@verge.net.au> X-Mailer: git-send-email 2.1.3 In-Reply-To: References: Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Geert Uytterhoeven Replace the hardcoded addresses for accessing the SYSC PM domain registers by register offsets, relative to the SYSC base address stored in struct rmobile_pm_domain. In the future, the SYSC base address will come from DT. Signed-off-by: Geert Uytterhoeven Reviewed-by: Ulf Hansson Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/pm-r8a7740.c | 14 ++++++++++++++ arch/arm/mach-shmobile/pm-rmobile.c | 24 +++++++++++++----------- arch/arm/mach-shmobile/pm-rmobile.h | 1 + arch/arm/mach-shmobile/pm-sh7372.c | 11 +++++++++++ 4 files changed, 39 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c index ac2eecd..34608fc 100644 --- a/arch/arm/mach-shmobile/pm-r8a7740.c +++ b/arch/arm/mach-shmobile/pm-r8a7740.c @@ -9,10 +9,14 @@ * for more details. */ #include +#include #include + #include "common.h" #include "pm-rmobile.h" +#define SYSC_BASE IOMEM(0xe6180000) + #if defined(CONFIG_PM) && !defined(CONFIG_ARCH_MULTIPLATFORM) static int r8a7740_pd_a3sm_suspend(void) { @@ -45,41 +49,51 @@ static int r8a7740_pd_d4_suspend(void) static struct rmobile_pm_domain r8a7740_pm_domains[] = { { .genpd.name = "A4LC", + .base = SYSC_BASE, .bit_shift = 1, }, { .genpd.name = "A4MP", + .base = SYSC_BASE, .bit_shift = 2, }, { .genpd.name = "D4", + .base = SYSC_BASE, .bit_shift = 3, .gov = &pm_domain_always_on_gov, .suspend = r8a7740_pd_d4_suspend, }, { .genpd.name = "A4R", + .base = SYSC_BASE, .bit_shift = 5, }, { .genpd.name = "A3RV", + .base = SYSC_BASE, .bit_shift = 6, }, { .genpd.name = "A4S", + .base = SYSC_BASE, .bit_shift = 10, .no_debug = true, }, { .genpd.name = "A3SP", + .base = SYSC_BASE, .bit_shift = 11, .gov = &pm_domain_always_on_gov, .no_debug = true, .suspend = r8a7740_pd_a3sp_suspend, }, { .genpd.name = "A3SM", + .base = SYSC_BASE, .bit_shift = 12, .gov = &pm_domain_always_on_gov, .suspend = r8a7740_pd_a3sm_suspend, }, { .genpd.name = "A3SG", + .base = SYSC_BASE, .bit_shift = 13, }, { .genpd.name = "A4SU", + .base = SYSC_BASE, .bit_shift = 20, }, }; diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c index 9b685a8..a4ad718 100644 --- a/arch/arm/mach-shmobile/pm-rmobile.c +++ b/arch/arm/mach-shmobile/pm-rmobile.c @@ -20,9 +20,9 @@ #include "pm-rmobile.h" /* SYSC */ -#define SPDCR IOMEM(0xe6180008) -#define SWUCR IOMEM(0xe6180014) -#define PSTR IOMEM(0xe6180080) +#define SPDCR 0x08 /* SYS Power Down Control Register */ +#define SWUCR 0x14 /* SYS Wakeup Control Register */ +#define PSTR 0x80 /* Power Status Register */ #define PSTR_RETRIES 100 #define PSTR_DELAY_US 10 @@ -39,12 +39,12 @@ static int rmobile_pd_power_down(struct generic_pm_domain *genpd) return ret; } - if (__raw_readl(PSTR) & mask) { + if (__raw_readl(rmobile_pd->base + PSTR) & mask) { unsigned int retry_count; - __raw_writel(mask, SPDCR); + __raw_writel(mask, rmobile_pd->base + SPDCR); for (retry_count = PSTR_RETRIES; retry_count; retry_count--) { - if (!(__raw_readl(SPDCR) & mask)) + if (!(__raw_readl(rmobile_pd->base + SPDCR) & mask)) break; cpu_relax(); } @@ -52,7 +52,8 @@ static int rmobile_pd_power_down(struct generic_pm_domain *genpd) if (!rmobile_pd->no_debug) pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n", - genpd->name, mask, __raw_readl(PSTR)); + genpd->name, mask, + __raw_readl(rmobile_pd->base + PSTR)); return 0; } @@ -64,13 +65,13 @@ static int __rmobile_pd_power_up(struct rmobile_pm_domain *rmobile_pd, unsigned int retry_count; int ret = 0; - if (__raw_readl(PSTR) & mask) + if (__raw_readl(rmobile_pd->base + PSTR) & mask) goto out; - __raw_writel(mask, SWUCR); + __raw_writel(mask, rmobile_pd->base + SWUCR); for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) { - if (!(__raw_readl(SWUCR) & mask)) + if (!(__raw_readl(rmobile_pd->base + SWUCR) & mask)) break; if (retry_count > PSTR_RETRIES) udelay(PSTR_DELAY_US); @@ -82,7 +83,8 @@ static int __rmobile_pd_power_up(struct rmobile_pm_domain *rmobile_pd, if (!rmobile_pd->no_debug) pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n", - rmobile_pd->genpd.name, mask, __raw_readl(PSTR)); + rmobile_pd->genpd.name, mask, + __raw_readl(rmobile_pd->base + PSTR)); out: if (ret == 0 && rmobile_pd->resume && do_resume) diff --git a/arch/arm/mach-shmobile/pm-rmobile.h b/arch/arm/mach-shmobile/pm-rmobile.h index 8f66b34..0602130 100644 --- a/arch/arm/mach-shmobile/pm-rmobile.h +++ b/arch/arm/mach-shmobile/pm-rmobile.h @@ -21,6 +21,7 @@ struct rmobile_pm_domain { struct dev_power_governor *gov; int (*suspend)(void); void (*resume)(void); + void __iomem *base; unsigned int bit_shift; bool no_debug; }; diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index 0e37da6..c0293ae 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -45,6 +45,8 @@ #define PLLC01STPCR IOMEM(0xe61500c8) /* SYSC */ +#define SYSC_BASE IOMEM(0xe6180000) + #define SBAR IOMEM(0xe6180020) #define WUPRMSK IOMEM(0xe6180028) #define WUPSMSK IOMEM(0xe618002c) @@ -118,24 +120,28 @@ static struct rmobile_pm_domain sh7372_pm_domains[] = { .genpd.name = "A4LC", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 1, }, { .genpd.name = "A4MP", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 2, }, { .genpd.name = "D4", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 3, }, { .genpd.name = "A4R", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 5, .suspend = sh7372_a4r_pd_suspend, .resume = sh7372_intcs_resume, @@ -144,18 +150,21 @@ static struct rmobile_pm_domain sh7372_pm_domains[] = { .genpd.name = "A3RV", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 6, }, { .genpd.name = "A3RI", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 8, }, { .genpd.name = "A4S", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 10, .gov = &pm_domain_always_on_gov, .no_debug = true, @@ -166,6 +175,7 @@ static struct rmobile_pm_domain sh7372_pm_domains[] = { .genpd.name = "A3SP", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 11, .gov = &pm_domain_always_on_gov, .no_debug = true, @@ -175,6 +185,7 @@ static struct rmobile_pm_domain sh7372_pm_domains[] = { .genpd.name = "A3SG", .genpd.power_on_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, .genpd.power_off_latency_ns = PM_DOMAIN_ON_OFF_LATENCY_NS, + .base = SYSC_BASE, .bit_shift = 13, }, };