From patchwork Fri Oct 24 10:54:34 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Thompson X-Patchwork-Id: 5146101 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A6E9AC11AC for ; Fri, 24 Oct 2014 11:06:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8A572201EC for ; Fri, 24 Oct 2014 11:06:55 +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 6604520256 for ; Fri, 24 Oct 2014 11:06:54 +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 1Xhcf5-0005tn-BD; Fri, 24 Oct 2014 11:04:03 +0000 Received: from mail-wi0-f181.google.com ([209.85.212.181]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xhcbt-0002Qt-1O for linux-arm-kernel@lists.infradead.org; Fri, 24 Oct 2014 11:00:48 +0000 Received: by mail-wi0-f181.google.com with SMTP id n3so894266wiv.14 for ; Fri, 24 Oct 2014 04:00:23 -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=ziKrIzwS4w7AQcFaJ9oBCezM078IYorprn0phAZUmvE=; b=LEhn+0g2SxRbxPueovgd1qU0evUSIdoZuov3H+QMRVFJ2AtlI+BtOdTrHTTWR9Ti0B 1VEEbDKC4qJEIhxgzg0wnPU2FKyty3yOndo6ytMLAkMwSRCzP6xJ3J7Qu3byJMXkBFNt u4frUDai+pmXgC4D3hUhJ3tlvwJVGS42B3rd3KfX8or1XwOscwSIQn7n/VyCKHBVmZtM Mw/IMYmd5ErBhog2wKHhuRoZeyk6iNNQWelXFGQPUYV+yB+Yf3RLZUppyyrYZK3wPuuv ZeyJb1axVNlj2AfyAcFdYkyCDTd/b67KfMQFhyet2/fmy9wlWKUxIhrohDUcQwgaZc9/ DvSw== X-Gm-Message-State: ALoCoQmAmOgjanW2iVKrvQvudB8nwyZgPs/pIrOeXvBSJwoOH+eTBTxFxB4ArlI/B4vfVd7mY/Fm X-Received: by 10.180.103.33 with SMTP id ft1mr3136127wib.71.1414148423797; Fri, 24 Oct 2014 04:00:23 -0700 (PDT) Received: from sundance.lan (cpc4-aztw19-0-0-cust157.18-1.cable.virginm.net. [82.33.25.158]) by mx.google.com with ESMTPSA id f7sm1601214wiz.13.2014.10.24.04.00.22 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Oct 2014 04:00:23 -0700 (PDT) From: Daniel Thompson To: Russell King Subject: [PATCH v12 13/15] arm: sa1100: Migrate DEBUG_LL macros to shared directory Date: Fri, 24 Oct 2014 11:54:34 +0100 Message-Id: <1414148076-12685-14-git-send-email-daniel.thompson@linaro.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1414148076-12685-1-git-send-email-daniel.thompson@linaro.org> References: <1414148076-12685-1-git-send-email-daniel.thompson@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141024_040045_277328_93B46008 X-CRM114-Status: GOOD ( 17.37 ) X-Spam-Score: -0.7 (/) 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, Srinivas Kandagatla , 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=-3.3 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 copy a few definitions from the mach-sa1100 headers and replace the automatic serial port detectiion with explicit configuration based on DEBUG_UART_PHYS/DEBUG_UART_VIRT. The removal of the automatic configuration is similar to the way migration was handled for OMAP2 (see 808b7e07464d...). Signed-off-by: Daniel Thompson Cc: Russell King --- arch/arm/Kconfig.debug | 39 +++++++++++++++- arch/arm/include/debug/sa1100.S | 37 +++++++++++++++ arch/arm/mach-sa1100/include/mach/debug-macro.S | 62 ------------------------- 3 files changed, 74 insertions(+), 64 deletions(-) create mode 100644 arch/arm/include/debug/sa1100.S delete mode 100644 arch/arm/mach-sa1100/include/mach/debug-macro.S diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 5bff47b..4a04c93 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -786,6 +786,30 @@ choice their output to UART 2. The port must have been initialised by the boot-loader before use. + config DEBUG_SA1100_UART1 + depends on ARCH_SA1100 + select DEBUG_SA1100_UART + bool "Kernel low-level debugging messages via SA1100 Ser1" + help + Say Y here if you want kernel low-level debugging support + on SA1100 based platforms. + + config DEBUG_SA1100_UART2 + depends on ARCH_SA1100 + select DEBUG_SA1100_UART + bool "Kernel low-level debugging messages via SA1100 Ser2" + help + Say Y here if you want kernel low-level debugging support + on SA1100 based platforms. + + config DEBUG_SA1100_UART3 + depends on ARCH_SA1100 + select DEBUG_SA1100_UART + bool "Kernel low-level debugging messages via SA1100 Ser3" + help + Say Y here if you want kernel low-level debugging support + on SA1100 based platforms. + config DEBUG_SOCFPGA_UART depends on ARCH_SOCFPGA bool "Use SOCFPGA UART for low-level debug" @@ -1089,6 +1113,10 @@ config DEBUG_TEGRA_UART bool depends on ARCH_TEGRA +config DEBUG_SA1100_UART + bool + depends on ARCH_SA1100 + config DEBUG_STI_UART bool depends on ARCH_STI @@ -1119,6 +1147,7 @@ config DEBUG_LL_INCLUDE default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART default "debug/s5pv210.S" if DEBUG_S5PV210_UART + default "debug/sa1100.S" if DEBUG_SA1100_UART default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1 default "debug/sti.S" if DEBUG_STI_UART default "debug/tegra.S" if DEBUG_TEGRA_UART @@ -1191,6 +1220,9 @@ config DEBUG_UART_PHYS DEBUG_S3C2410_UART2) default 0x78000000 if DEBUG_CNS3XXX default 0x7c0003f8 if FOOTBRIDGE + default 0x80010000 if DEBUG_SA1100_UART1 + default 0x80030000 if DEBUG_SA1100_UART2 + default 0x80050000 if DEBUG_SA1100_UART3 default 0x80070000 if DEBUG_IMX23_UART default 0x80074000 if DEBUG_IMX28_UART default 0x80230000 if DEBUG_PICOXCELL_UART @@ -1231,7 +1263,7 @@ config DEBUG_UART_PHYS DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ DEBUG_MSM_UART || DEBUG_NETX_UART || \ DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ - DEBUG_UART_BCM63XX + DEBUG_SA1100_UART || DEBUG_UART_BCM63XX config DEBUG_UART_VIRT hex "Virtual base address of debug UART" @@ -1260,6 +1292,9 @@ config DEBUG_UART_VIRT default 0xf7fc9000 if DEBUG_BERLIN_UART default 0xf8007000 if DEBUG_HIP04_UART default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 + default 0xf8010000 if DEBUG_SA1100_UART1 + default 0xf8030000 if DEBUG_SA1100_UART2 + default 0xf8050000 if DEBUG_SA1100_UART3 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 default 0xfa71e000 if DEBUG_QCOM_UARTDM default 0xfb002000 if DEBUG_CNS3XXX @@ -1309,7 +1344,7 @@ config DEBUG_UART_VIRT DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ DEBUG_MSM_UART || DEBUG_NETX_UART || \ DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ - DEBUG_UART_BCM63XX + DEBUG_SA1100_UART || DEBUG_UART_BCM63XX config DEBUG_UART_8250_SHIFT int "Register offset shift for the 8250 debug UART" diff --git a/arch/arm/include/debug/sa1100.S b/arch/arm/include/debug/sa1100.S new file mode 100644 index 0000000..6b5e1ce --- /dev/null +++ b/arch/arm/include/debug/sa1100.S @@ -0,0 +1,37 @@ +/* + * Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + +#define UTDR 0x14 +#define UTSR1 0x20 +#define UTSR1_TBY 0x00000001 /* Transmitter BusY (read) */ +#define UTSR1_TNF 0x00000004 /* Transmit FIFO Not Full (read) */ + + .macro addruart, rp, rv, tmp + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #UTDR] + .endm + + .macro waituart,rd,rx +1001: ldr \rd, [\rx, #UTSR1] + tst \rd, #UTSR1_TNF + beq 1001b + .endm + + .macro busyuart,rd,rx +1001: ldr \rd, [\rx, #UTSR1] + tst \rd, #UTSR1_TBY + bne 1001b + .endm diff --git a/arch/arm/mach-sa1100/include/mach/debug-macro.S b/arch/arm/mach-sa1100/include/mach/debug-macro.S deleted file mode 100644 index 530772d..0000000 --- a/arch/arm/mach-sa1100/include/mach/debug-macro.S +++ /dev/null @@ -1,62 +0,0 @@ -/* arch/arm/mach-sa1100/include/mach/debug-macro.S - * - * Debugging macro include header - * - * Copyright (C) 1994-1999 Russell King - * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * -*/ -#include - - .macro addruart, rp, rv, tmp - mrc p15, 0, \rp, c1, c0 - tst \rp, #1 @ MMU enabled? - moveq \rp, #0x80000000 @ physical base address - movne \rp, #0xf8000000 @ virtual address - - @ We probe for the active serial port here, coherently with - @ the comment in arch/arm/mach-sa1100/include/mach/uncompress.h. - @ We assume r1 can be clobbered. - - @ see if Ser3 is active - add \rp, \rp, #0x00050000 - ldr \rv, [\rp, #UTCR3] - tst \rv, #UTCR3_TXE - - @ if Ser3 is inactive, then try Ser1 - addeq \rp, \rp, #(0x00010000 - 0x00050000) - ldreq \rv, [\rp, #UTCR3] - tsteq \rv, #UTCR3_TXE - - @ if Ser1 is inactive, then try Ser2 - addeq \rp, \rp, #(0x00030000 - 0x00010000) - ldreq \rv, [\rp, #UTCR3] - tsteq \rv, #UTCR3_TXE - - @ clear top bits, and generate both phys and virt addresses - lsl \rp, \rp, #8 - lsr \rp, \rp, #8 - orr \rv, \rp, #0xf8000000 @ virtual - orr \rp, \rp, #0x80000000 @ physical - - .endm - - .macro senduart,rd,rx - str \rd, [\rx, #UTDR] - .endm - - .macro waituart,rd,rx -1001: ldr \rd, [\rx, #UTSR1] - tst \rd, #UTSR1_TNF - beq 1001b - .endm - - .macro busyuart,rd,rx -1001: ldr \rd, [\rx, #UTSR1] - tst \rd, #UTSR1_TBY - bne 1001b - .endm