From patchwork Tue Dec 23 10:48:29 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 5532601 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A89A09F30B for ; Tue, 23 Dec 2014 10:51:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BEACE2012D for ; Tue, 23 Dec 2014 10:51:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 27762201C0 for ; Tue, 23 Dec 2014 10:51:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755523AbaLWKul (ORCPT ); Tue, 23 Dec 2014 05:50:41 -0500 Received: from mailout4.w1.samsung.com ([210.118.77.14]:62246 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755929AbaLWKsu (ORCPT ); Tue, 23 Dec 2014 05:48:50 -0500 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NH100CH17JZWE90@mailout4.w1.samsung.com>; Tue, 23 Dec 2014 10:52:47 +0000 (GMT) X-AuditID: cbfec7f5-b7fc86d0000066b7-75-5499488d7ba6 Received: from eusync4.samsung.com ( [203.254.199.214]) by eucpsbgm2.samsung.com (EUCPMTA) with SMTP id F2.B8.26295.D8849945; Tue, 23 Dec 2014 10:48:45 +0000 (GMT) Received: from amdc1339.digital.local ([106.116.147.30]) by eusync4.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NH100J7C7D1M650@eusync4.samsung.com>; Tue, 23 Dec 2014 10:48:44 +0000 (GMT) From: Marek Szyprowski To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Marek Szyprowski , Tomasz Figa , Kyungmin Park , linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org, Arnd Bergmann , Olof Johansson , Russell King - ARM Linux , Kukjin Kim , lauraa@codeaurora.org, linus.walleij@linaro.org, tony@atomide.com, drake@endlessm.com, loeliger@gmail.com, Mark Rutland , nm@ti.com, khilman@linaro.org Subject: [PATCH v10 1/8] ARM: OMAP2+: use common l2cache initialization code Date: Tue, 23 Dec 2014 11:48:29 +0100 Message-id: <1419331716-8972-2-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 In-reply-to: <1419331716-8972-1-git-send-email-m.szyprowski@samsung.com> References: <1419331716-8972-1-git-send-email-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrGLMWRmVeSWpSXmKPExsVy+t/xa7q9HjNDDF4vlrP4O+kYu8Wj+Y+Z LXoXXGWz+Hp4BaPF2aY37BbbO2ewW0z5s5zJYtPja6wWl3fNYbOYvaSfxWLG+X1MFrcv81qc 276FxWLtkbvsFkuvX2SyePPjLJPFqeuf2SxW7frDaLH/ipeDsMeaeWsYPVqae9g8fv+axOjx 7eskFo/Lfb1MHou+Z3nsnHWX3ePOtT1sHpuX1HtcOdHE6tG3ZRWjx/Eb25k8Pm+SC+CN4rJJ Sc3JLEst0rdL4Mo4sXgJa8Fb6Yqu3Y/ZGhhPiXcxcnBICJhIXF0u28XICWSKSVy4t56ti5GL Q0hgKaPEj6NXoZw+Jokvm7tYQarYBAwlut52sYHYIgJuEv/WHQIrYhaYxiKx6ch5ZpCEsICP xKSNDUwgNouAqsTW5rdgcV4Bd4nnHXuYIdbJSfx/uQKshlPAQ+Lkos1gthBQzbanB1kmMPIu YGRYxSiaWppcUJyUnmukV5yYW1yal66XnJ+7iRESF193MC49ZnWIUYCDUYmH9+K3GSFCrIll xZW5hxglOJiVRHhfis8MEeJNSaysSi3Kjy8qzUktPsTIxMEp1cDoECElfeawYYKc5QKpy2Hv OHbwaa9t3BdkPi1+csOz+cUfCg66yYTNvXXftOT67cSGj/3aMl4P3oqEPr/2Ue2+IPekcyvM xB2fsZTe2X/lq//shKVLb77V0HBWbohjzuqeetf/Hr+AyKILHT9lc/JiSz0E3K27uGxeNfz4 dV7kmPfamXLTmBOUWIozEg21mIuKEwH4eT//aQIAAA== Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@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 This patch implements generic DT L2C initialisation (the one from init_IRQ in arch/arm/kernel/irq.c) for Omap4 and AM43 platforms and kills the SoC specific stuff in arch/arm/mach-omap2/omap4-common.c. Signed-off-by: Marek Szyprowski --- arch/arm/mach-omap2/board-generic.c | 6 ++++++ arch/arm/mach-omap2/common.h | 7 +++++++ arch/arm/mach-omap2/omap4-common.c | 16 +--------------- 3 files changed, 14 insertions(+), 15 deletions(-) diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 608079a1aba6..c5c480b76da5 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -171,6 +171,9 @@ static const char *const omap4_boards_compat[] __initconst = { }; DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)") + .l2c_aux_val = OMAP_L2C_AUX_CTRL, + .l2c_aux_mask = 0xcf9fffff, + .l2c_write_sec = omap4_l2c310_write_sec, .reserve = omap_reserve, .smp = smp_ops(omap4_smp_ops), .map_io = omap4_map_io, @@ -214,6 +217,9 @@ static const char *const am43_boards_compat[] __initconst = { }; DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)") + .l2c_aux_val = OMAP_L2C_AUX_CTRL, + .l2c_aux_mask = 0xcf9fffff, + .l2c_write_sec = omap4_l2c310_write_sec, .map_io = am33xx_map_io, .init_early = am43xx_init_early, .init_late = am43xx_init_late, diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index 377eea849e7b..19c9144d8b38 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -35,6 +35,7 @@ #include #include +#include #include "i2c.h" #include "serial.h" @@ -94,11 +95,17 @@ extern void omap3_gptimer_timer_init(void); extern void omap4_local_timer_init(void); #ifdef CONFIG_CACHE_L2X0 int omap_l2_cache_init(void); +#define OMAP_L2C_AUX_CTRL (L2C_AUX_CTRL_SHARED_OVERRIDE | \ + L310_AUX_CTRL_DATA_PREFETCH | \ + L310_AUX_CTRL_INSTR_PREFETCH) +void omap4_l2c310_write_sec(unsigned long val, unsigned reg); #else static inline int omap_l2_cache_init(void) { return 0; } +#define OMAP_L2C_AUX_CTRL 0 +#define omap4_l2c310_write_sec NULL #endif extern void omap5_realtime_timer_init(void); diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index b7cb44abe49b..fe99ceff2e2d 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -166,7 +166,7 @@ void __iomem *omap4_get_l2cache_base(void) return l2cache_base; } -static void omap4_l2c310_write_sec(unsigned long val, unsigned reg) +void omap4_l2c310_write_sec(unsigned long val, unsigned reg) { unsigned smc_op; @@ -201,24 +201,10 @@ static void omap4_l2c310_write_sec(unsigned long val, unsigned reg) int __init omap_l2_cache_init(void) { - u32 aux_ctrl; - /* Static mapping, never released */ l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K); if (WARN_ON(!l2cache_base)) return -ENOMEM; - - /* 16-way associativity, parity disabled, way size - 64KB (es2.0 +) */ - aux_ctrl = L2C_AUX_CTRL_SHARED_OVERRIDE | - L310_AUX_CTRL_DATA_PREFETCH | - L310_AUX_CTRL_INSTR_PREFETCH; - - outer_cache.write_sec = omap4_l2c310_write_sec; - if (of_have_populated_dt()) - l2x0_of_init(aux_ctrl, 0xcf9fffff); - else - l2x0_init(l2cache_base, aux_ctrl, 0xcf9fffff); - return 0; } #endif