From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wm0-x244.google.com ([2a00:1450:400c:c09::244]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bK2Rk-0007sV-LK for barebox@lists.infradead.org; Mon, 04 Jul 2016 11:53:53 +0000 Received: by mail-wm0-x244.google.com with SMTP id c82so21088426wme.3 for ; Mon, 04 Jul 2016 04:53:32 -0700 (PDT) From: Raphael Poggi Date: Mon, 4 Jul 2016 13:52:44 +0200 Message-Id: <1467633177-22478-2-git-send-email-poggi.raph@gmail.com> In-Reply-To: <1467633177-22478-1-git-send-email-poggi.raph@gmail.com> References: <1467633177-22478-1-git-send-email-poggi.raph@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH v5 01/14] arm64: add armv8 Kconfig entries To: barebox@lists.infradead.org Cc: Raphael Poggi Signed-off-by: Raphael Poggi --- arch/arm/Kconfig | 23 +++++++++++++++++++++++ arch/arm/cpu/Kconfig | 33 ++++++++++++++++++++++++++++++++- 2 files changed, 55 insertions(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1fc887b..986fdaa 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -315,6 +315,29 @@ config ARM_BOARD_APPEND_ATAG endmenu +choice + prompt "Barebox code model" + help + You should only select this option if you have a workload that + actually benefits from 64-bit processing or if your machine has + large memory. You will only be presented a single option in this + menu if your system does not support both 32-bit and 64-bit modes. + +config 32BIT + bool "32-bit barebox" + depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL + help + Select this option if you want to build a 32-bit barebox. + +config 64BIT + bool "64-bit barebox" + depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL + select ARCH_DMA_ADDR_T_64BIT + help + Select this option if you want to build a 64-bit barebox. + +endchoice + menu "ARM specific settings" config ARM_OPTIMZED_STRING_FUNCTIONS diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig index 4f5d9b6..450a6d5 100644 --- a/arch/arm/cpu/Kconfig +++ b/arch/arm/cpu/Kconfig @@ -1,8 +1,14 @@ comment "Processor Type" +config PHYS_ADDR_T_64BIT + bool + config CPU_32 bool - default y + +config CPU_64 + bool + select PHYS_ADDR_T_64BIT # Select CPU types depending on the architecture selected. This selects # which CPUs we support in the kernel image, and the compiler instruction @@ -69,6 +75,12 @@ config CPU_V7 bool select CPU_32v7 +# ARMv8 +config CPU_V8 + bool + select CPU_64v8 + select CPU_SUPPORTS_64BIT_KERNEL + config CPU_XSC3 bool select CPU_32v4T @@ -84,15 +96,23 @@ config CPU_XSCALE # This defines the compiler instruction set which depends on the machine type. config CPU_32v4T bool + select CPU_32 config CPU_32v5 bool + select CPU_32 config CPU_32v6 bool + select CPU_32 config CPU_32v7 bool + select CPU_32 + +config CPU_64v8 + bool + select CPU_64 comment "processor features" @@ -124,3 +144,14 @@ config CACHE_L2X0 bool "Enable L2x0 PrimeCell" depends on MMU && ARCH_HAS_L2X0 +config SYS_SUPPORTS_32BIT_KERNEL + bool + +config SYS_SUPPORTS_64BIT_KERNEL + bool + +config CPU_SUPPORTS_32BIT_KERNEL + bool + +config CPU_SUPPORTS_64BIT_KERNEL + bool -- 2.1.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox