From mboxrd@z Thu Jan 1 00:00:00 1970 From: panchaxari Subject: [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default Date: Mon, 9 Dec 2013 15:10:50 +0530 Message-ID: <1386582050-21375-1-git-send-email-panchaxari.prasannamurthy@linaro.org> Return-path: Received: from mail-pb0-f50.google.com ([209.85.160.50]:53537 "EHLO mail-pb0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753326Ab3LIJlT (ORCPT ); Mon, 9 Dec 2013 04:41:19 -0500 Received: by mail-pb0-f50.google.com with SMTP id rr13so5079797pbb.23 for ; Mon, 09 Dec 2013 01:41:18 -0800 (PST) Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: linus.walleij@linaro.org Cc: patches@linaro.org, linaro-kernel@lists.linaro.org, panchaxari.prasannamurthy@linaro.org, David Brown , Daniel Walker , Bryan Huntsman , Russell King , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs to MSM platform Introduction of PHYS_VIRT config as default would enable phy-to-virt and virt-to-phy translation function at boot and module loading time and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would enable calculation of kernel load address at run time. PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in systems with NOR flash devices, and ZRELADDR config is mutually exclusive to ZBOOT_ROM. CFT::Call For Testing Requesting maintainers of MSM platforms to evaluate the changes on the board and comment, as I dont have the board for testing and also requesting an ACK Signed-off-by: panchaxari Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Cc: Russell King Cc: Linus Walleij Cc: linux-arm-msm@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- ARCH_MSM supports for Qualcomm MSM/QSD based systems. This runs on the apps processor of the MSM/QSD and depends on a shared memory interface to the modem processor which runs the baseband stack and controls some vital subsystems like clock and power control. Snapdragon is based on ARMv7 instruction set. And supports Random memory devices like DDR1, LPDDR2 and LPDDR3. And storage memory devices like NAND, eMMC. Below lkml link is a quoting by Russell which clears the concept of PHYS_VIRT and ZRELADDR --------------------------------------------------- https://lkml.org/lkml/2011/10/14/434 ------------------------------------------------- --- arch/arm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13621ed..3b77864 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -638,6 +638,8 @@ config ARCH_PXA config ARCH_MSM bool "Qualcomm MSM" select ARCH_REQUIRE_GPIOLIB + select ARM_PATCH_PHYS_VIRT + select AUTO_ZRELADDR select CLKSRC_OF if OF select COMMON_CLK select GENERIC_CLOCKEVENTS -- 1.7.10.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: panchaxari.prasannamurthy@linaro.org (panchaxari) Date: Mon, 9 Dec 2013 15:10:50 +0530 Subject: [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default Message-ID: <1386582050-21375-1-git-send-email-panchaxari.prasannamurthy@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs to MSM platform Introduction of PHYS_VIRT config as default would enable phy-to-virt and virt-to-phy translation function at boot and module loading time and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would enable calculation of kernel load address at run time. PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in systems with NOR flash devices, and ZRELADDR config is mutually exclusive to ZBOOT_ROM. CFT::Call For Testing Requesting maintainers of MSM platforms to evaluate the changes on the board and comment, as I dont have the board for testing and also requesting an ACK Signed-off-by: panchaxari Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Cc: Russell King Cc: Linus Walleij Cc: linux-arm-msm at vger.kernel.org Cc: linux-arm-kernel at lists.infradead.org Cc: linux-kernel at vger.kernel.org --- ARCH_MSM supports for Qualcomm MSM/QSD based systems. This runs on the apps processor of the MSM/QSD and depends on a shared memory interface to the modem processor which runs the baseband stack and controls some vital subsystems like clock and power control. Snapdragon is based on ARMv7 instruction set. And supports Random memory devices like DDR1, LPDDR2 and LPDDR3. And storage memory devices like NAND, eMMC. Below lkml link is a quoting by Russell which clears the concept of PHYS_VIRT and ZRELADDR --------------------------------------------------- https://lkml.org/lkml/2011/10/14/434 ------------------------------------------------- --- arch/arm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13621ed..3b77864 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -638,6 +638,8 @@ config ARCH_PXA config ARCH_MSM bool "Qualcomm MSM" select ARCH_REQUIRE_GPIOLIB + select ARM_PATCH_PHYS_VIRT + select AUTO_ZRELADDR select CLKSRC_OF if OF select COMMON_CLK select GENERIC_CLOCKEVENTS -- 1.7.10.4