From patchwork Tue Sep 16 23:57:54 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Thompson X-Patchwork-Id: 4921861 Return-Path: X-Original-To: patchwork-linux-arm@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 C64B49F2EC for ; Wed, 17 Sep 2014 00:00:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 09ECC20158 for ; Wed, 17 Sep 2014 00:02:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1317B2015E for ; Wed, 17 Sep 2014 00:02:18 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XU2eh-0002us-9r; Tue, 16 Sep 2014 23:59:31 +0000 Received: from mail-pa0-f48.google.com ([209.85.220.48]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XU2dn-00028P-5r for linux-arm-kernel@lists.infradead.org; Tue, 16 Sep 2014 23:58:35 +0000 Received: by mail-pa0-f48.google.com with SMTP id hz1so840407pad.7 for ; Tue, 16 Sep 2014 16:58:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=WF5tUs6edsy5tksPuPNqj89JKzbqnoqRZuuV7YWp5LA=; b=O2qPIdOIW7tVN9xcXULJBi/mFkrc8+G9v+WajFxNitAjUJStKFOnpGG0eVvdGGbBZT QF0513o32hKgdhz+kqeooEVpMALOFRKRzXmNzxOoNS0pSLm6gq016Q5EmztQssXlZmBl 4w6gNZg0+I56rrgv+InwmK6ib77VS1ipOQdp1awhBmZ3dGOxC82orDfpKVppPf/ohdp1 q0d8iEGNPMWTjAUAS7iRoqnZBJHp8CjQhkh20uNTnpy5T7/+spniH2PLmMT2M9CfwMGW WoUAwOXB1Wzm5dzfBZ0gbfvsaEnazLsgaSmeDKW2/0lK8lgaA6zAKexu1APyhuWQA28o Udcw== X-Gm-Message-State: ALoCoQnbWyN3N1iOBEpngUJaqk4klAXn8UemEU79SnP5BTL7F4hDZUvHUQK2tSFl5TvSLDb2L8Zx X-Received: by 10.68.91.226 with SMTP id ch2mr4684628pbb.153.1410911894017; Tue, 16 Sep 2014 16:58:14 -0700 (PDT) Received: from harvey.bri.st.com.com (70-35-38-154.static.wiline.com. [70.35.38.154]) by mx.google.com with ESMTPSA id st7sm15682757pab.7.2014.09.16.16.58.12 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Sep 2014 16:58:13 -0700 (PDT) From: Daniel Thompson To: Russell King Subject: [PATCH v11 6/9] arm: netx: Migrate DEBUG_LL macros to shared directory Date: Tue, 16 Sep 2014 16:57:54 -0700 Message-Id: <1410911877-24903-7-git-send-email-daniel.thompson@linaro.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1410911877-24903-1-git-send-email-daniel.thompson@linaro.org> References: <1410911877-24903-1-git-send-email-daniel.thompson@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140916_165835_263046_4FAC4671 X-CRM114-Status: GOOD ( 11.41 ) X-Spam-Score: -1.1 (-) Cc: Paul Bolle , linaro-kernel@lists.linaro.org, Arnd Bergmann , patches@linaro.org, spear-devel@list.st.com, Daniel Thompson , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, 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 As part of the migration we introduce DEBUG_UART_PHYS/DEBUG_UART_VIRT which default to UART1 but allow a user to configure UART2 or UART3. We also introduce symbolic names for the registers and flags. Signed-off-by: Daniel Thompson Cc: Russell King Acked-by: Arnd Bergmann Cc: linux-arm-kernel@lists.infradead.org --- arch/arm/Kconfig.debug | 16 ++++++++++++++-- .../mach/debug-macro.S => include/debug/netx.S} | 22 +++++++++++----------- 2 files changed, 25 insertions(+), 13 deletions(-) rename arch/arm/{mach-netx/include/mach/debug-macro.S => include/debug/netx.S} (62%) diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 6540036..ab5f60b 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -447,6 +447,13 @@ choice Say Y here if you want kernel low-level debugging support on Vybrid based platforms. + config DEBUG_NETX_UART + bool "Kernel low-level debugging messages via NetX UART" + depends on ARCH_NETX + help + Say Y here if you want kernel low-level debugging support + on Hilscher NetX based platforms. + config DEBUG_NOMADIK_UART bool "Kernel low-level debugging messages via NOMADIK UART" depends on ARCH_NOMADIK @@ -1074,6 +1081,7 @@ config DEBUG_LL_INCLUDE DEBUG_IMX6SX_UART default "debug/ks8695.S" if DEBUG_KS8695_UART default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM + default "debug/netx.S" if DEBUG_NETX_UART default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART default "debug/s5pv210.S" if DEBUG_S5PV210_UART @@ -1106,6 +1114,7 @@ config DEBUG_UART_8250 config DEBUG_UART_PHYS hex "Physical base address of debug UART" + default 0x00100a00 if DEBUG_NETX_UART default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 default 0x01c28000 if DEBUG_SUNXI_UART0 default 0x01c28400 if DEBUG_SUNXI_UART1 @@ -1176,10 +1185,12 @@ config DEBUG_UART_PHYS depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ DEBUG_LL_UART_EFM32 || \ DEBUG_UART_8250 || DEBUG_UART_PL01X || \ - DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART + DEBUG_MSM_UART || DEBUG_NETX_UART || DEBUG_QCOM_UARTDM || \ + DEBUG_S3C24XX_UART config DEBUG_UART_VIRT hex "Virtual base address of debug UART" + default 0xe0000a00 if DEBUG_NETX_UART default 0xe0010fe0 if ARCH_RPC default 0xe1000000 if DEBUG_MSM_UART default 0xf0000be0 if ARCH_EBSA110 @@ -1247,7 +1258,8 @@ config DEBUG_UART_VIRT default DEBUG_UART_PHYS if !MMU depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ DEBUG_UART_8250 || DEBUG_UART_PL01X || \ - DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART + DEBUG_MSM_UART || DEBUG_NETX_UART || DEBUG_QCOM_UARTDM || \ + DEBUG_S3C24XX_UART config DEBUG_UART_8250_SHIFT int "Register offset shift for the 8250 debug UART" diff --git a/arch/arm/mach-netx/include/mach/debug-macro.S b/arch/arm/include/debug/netx.S similarity index 62% rename from arch/arm/mach-netx/include/mach/debug-macro.S rename to arch/arm/include/debug/netx.S index 247781e..81e1b2a 100644 --- a/arch/arm/mach-netx/include/mach/debug-macro.S +++ b/arch/arm/include/debug/netx.S @@ -1,5 +1,4 @@ -/* arch/arm/mach-netx/include/mach/debug-macro.S - * +/* * Debugging macro include header * * Copyright (C) 1994-1999 Russell King @@ -11,26 +10,27 @@ * */ -#include "hardware.h" +#define UART_DATA 0 +#define UART_FLAG 0x18 +#define UART_FLAG_BUSY (1 << 3) .macro addruart, rp, rv, tmp - mov \rp, #0x00000a00 - orr \rv, \rp, #io_p2v(0x00100000) @ virtual - orr \rp, \rp, #0x00100000 @ physical + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT .endm .macro senduart,rd,rx - str \rd, [\rx, #0] + str \rd, [\rx, #UART_DATA] .endm .macro busyuart,rd,rx -1002: ldr \rd, [\rx, #0x18] - tst \rd, #(1 << 3) +1002: ldr \rd, [\rx, #UART_FLAG] + tst \rd, #UART_FLAG_BUSY bne 1002b .endm .macro waituart,rd,rx -1001: ldr \rd, [\rx, #0x18] - tst \rd, #(1 << 3) +1001: ldr \rd, [\rx, #UART_FLAG] + tst \rd, #UART_FLAG_BUSY bne 1001b .endm